Cross Reference: /src/sys/rump/librump/rumpkern

History log of /src/sys/rump/librump/rumpkern
Revision	Date	Author	Comments
1.2	21-Aug-2015	christos	Remove KERN.ioconf, ksyms does not really need it.
1.1	20-Aug-2015	christos	generate ioconf.h for pseudo-device attach prototype
1.3	17-Dec-2019	ad	Rump is living up to its name
1.2	16-Dec-2019	ad	- Extend the per-CPU counters matt@ did to include all of the hot counters in UVM, excluding uvmexp.free, which needs special treatment and will be done with a separate commit. Cuts system time for a build by 20-25% on a 48 CPU machine w/DIAGNOSTIC. - Avoid 64-bit integer divide on every fault (for rnd_add_uint32).
1.1	13-May-2019	bad	branches: 1.1.2; On the one thousand and ninth day rump's mainbus was moved from rumpdev to rumpkern, liberating all rumpnet users from the need to -lrumpdev -lrumpvfs just because a loopback interface is mandatory. Rename rumpdev/autoconf.c to rumpkern/rump_autoconf.c to avoid accidentally picking up e.g. sys/arch/amd64/amd64/autoconf.c through make's .PATH. Move rumpdev/MAINBUS.ioconf to rumpkern.
1.1.2.2	10-Jun-2019	christos	Sync with HEAD
1.1.2.1	13-May-2019	christos	file MAINBUS.ioconf was added on branch phil-wifi on 2019-06-10 22:09:53 +0000
1.43	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.42	28-Jul-2008	pooka	blkset.S is needed on vax by some macros, so include it in the build.
1.41	20-Jul-2008	pooka	You must untypo what you have typoed: rumpnode_if.h -> rumpvnode_if.h
1.40	16-Jul-2008	pooka	vfs_subr2 has lost its will to live. vfs_subr was originally split into two parts so that some of the routines could be used by rump. Now that rump uses both vfs_subr and vfs_subr2 and there is no reason to keep two files lying around, re-unite them.
1.39	02-Jul-2008	he	branches: 1.39.2; Add dependencies on the input files + Makefile for the auto-generated files rumpdefs.h, rumpnode_if.h, and rumpvnode_if.c. This is so that an UPDATE build has a chance of succeeding. Discussed with pooka@, and he wasn't totally against adding this...
1.38	01-Jul-2008	pooka	Fixes to build rump utilities as host binaries on Linux by removing sys namespace pollution which has crept in. Submitted in private mail by takemura, domain ca2.so-net.ne.jp
1.37	30-Jun-2008	matt	Don't build rb.c anymore since it's in libc now.
1.36	25-Jun-2008	pooka	Don't compile kern_lock for rump any more, it's no longer required. Allows us to get rid of the incorrect _RUMPKERNEL ifdefs outside sys/rump.
1.35	05-Jun-2008	ad	branches: 1.35.2; Make it build again.
1.34	29-May-2008	pooka	Specify RUMP_WITHOUT_THREADS only in one place.
1.33	04-May-2008	ad	branches: 1.33.2; Pull in the kernel module stuff so that rump can set up built-in modules.
1.32	21-Mar-2008	ad	branches: 1.32.2; 1.32.4; Catch up with descriptor handling changes. See kern_descrip.c revision 1.173 for details.
1.31	11-Mar-2008	pooka	Compile rump_syscalls, use them in a few places.
1.30	11-Mar-2008	pooka	Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.29	28-Jan-2008	pooka	branches: 1.29.2; 1.29.6; compile genfs_vfsops.c (hi dh2 ;)
1.28	27-Jan-2008	pooka	Use vfs_subr.c from sys/kern. This brings differences in the vnode life cycle between rump and a real kernel to a minimum.
1.27	25-Jan-2008	pooka	Include vfs_getcwd.c too. It isn't used currently, but it's linked.
1.26	24-Jan-2008	pooka	Use namei() etc. from kernel sources instead of a reimplementation. To accommodate, give the rootvnode its own vnode op vector with a simple lookup operation. This is used for looking up the file system's device vnode instead of doing that directly in a homesmoked namei().
1.25	02-Jan-2008	pooka	Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.24	02-Jan-2008	ad	Build intr.c.
1.23	30-Dec-2007	pooka	pull in atomic ops from vmlocking2
1.22	30-Nov-2007	dsl	branches: 1.22.2; 1.22.6; Temporarily make 'atomic_add_int()' a non-atomic add so the build suceeds. At some point the functions will (presumably) make their way into either libc or libutil.
1.21	31-Oct-2007	pooka	branches: 1.21.2; Include bufq priority implementations also and link librump with --whole-archive since the bufq priorities use link sets.
1.20	31-Oct-2007	pooka	Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.19	26-Oct-2007	pooka	branches: 1.19.2; RUMUSEROBJDIR -> RUMPUSEROBJDIR (those cold-blooded old times ...)
1.18	17-Oct-2007	pooka	branches: 1.18.2; Compile most genfs routines directly out of the kernel sources. Move special I/O routines to genfs_io.c to mirror kernel naming.
1.17	11-Sep-2007	pooka	branches: 1.17.2; create generated files before running makedepend
1.16	10-Sep-2007	pooka	no need to include param.c twice in the source list
1.15	26-Aug-2007	pooka	branches: 1.15.2; 1.15.4; split implemented lock stuff out of lock_stub.c into lock.c
1.14	25-Aug-2007	pooka	Don't play rename & typecast games with kauth_cred_t, but rather declare the type in rump.h only if necessary with the help of ifdef magic.
1.13	21-Aug-2007	pooka	Implement credentials. Access control is now similar to if the file system were run in the kernel.
1.12	20-Aug-2007	pooka	branches: 1.12.2; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.11	19-Aug-2007	pooka	Namespace management: do not call VOP_FOO directly from ukfs or p2k, but rather make the calls go through librump. This avoids having to include NetBSD kernel headers in userspace programs. Stay tuned for some more mods of the same sort ...
1.10	16-Aug-2007	pooka	jump through rename hoops (hi ad!)
1.9	14-Aug-2007	pooka	branches: 1.9.2; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.8	14-Aug-2007	pooka	compile in clock_subr.c
1.7	13-Aug-2007	pooka	Use supermarket variety vfs_vnops.c instead of homecooked routines (that's actually a good thing here).
1.6	13-Aug-2007	pooka	compile in libkern __assert.c, argument order differs from libc model
1.5	09-Aug-2007	pooka	Play catchup with ufs/ffs changes: compile subr_specificdata.c and emulate kmem_foo() to support the prior.
1.4	09-Aug-2007	pooka	* compile subr_time.c from kern/ * some pmap stubs
1.3	08-Aug-2007	pooka	* compile param.c * move opts to a separate directory
1.2	07-Aug-2007	pooka	flip order of includes to get NETBSDSRCDIR. from agc
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file Makefile was added on branch matt-mips64 on 2007-08-05 22:28:08 +0000
1.9.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.9.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.9.2.1	14-Aug-2007	skrll	file Makefile was added on branch nick-csl-alignment on 2007-08-15 13:50:35 +0000
1.12.2.5	23-Oct-2007	ad	Sync with head.
1.12.2.4	12-Oct-2007	ad	Fix merge errors.
1.12.2.3	09-Oct-2007	ad	Sync with head.
1.12.2.2	20-Aug-2007	ad	Sync with HEAD.
1.12.2.1	20-Aug-2007	ad	file Makefile was added on branch vmlocking on 2007-08-20 22:07:26 +0000
1.15.4.9	24-Mar-2008	yamt	sync with head.
1.15.4.8	17-Mar-2008	yamt	sync with head.
1.15.4.7	04-Feb-2008	yamt	sync with head.
1.15.4.6	21-Jan-2008	yamt	sync with head
1.15.4.5	07-Dec-2007	yamt	sync with head
1.15.4.4	15-Nov-2007	yamt	sync with head.
1.15.4.3	27-Oct-2007	yamt	sync with head.
1.15.4.2	03-Sep-2007	yamt	sync with head.
1.15.4.1	26-Aug-2007	yamt	file Makefile was added on branch yamt-lazymbuf on 2007-09-03 14:45:24 +0000
1.15.2.3	23-Mar-2008	matt	sync with HEAD
1.15.2.2	09-Jan-2008	matt	sync with HEAD
1.15.2.1	06-Nov-2007	matt	sync with HEAD
1.17.2.1	18-Oct-2007	yamt	sync with head.
1.18.2.1	13-Nov-2007	bouyer	Sync with HEAD
1.19.2.3	03-Dec-2007	joerg	Sync with HEAD.
1.19.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.19.2.1	26-Oct-2007	joerg	file Makefile was added on branch jmcneill-pm on 2007-10-31 23:14:15 +0000
1.21.2.2	18-Feb-2008	mjf	Sync with HEAD.
1.21.2.1	08-Dec-2007	mjf	Sync with HEAD.
1.22.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.22.2.1	28-Dec-2007	ad	Make rump build.
1.29.6.6	28-Sep-2008	mjf	Sync with HEAD.
1.29.6.5	02-Jul-2008	mjf	Sync with HEAD.
1.29.6.4	29-Jun-2008	mjf	Sync with HEAD.
1.29.6.3	05-Jun-2008	mjf	Sync with HEAD. Also fix build.
1.29.6.2	02-Jun-2008	mjf	Sync with HEAD.
1.29.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.29.2.1	24-Mar-2008	keiichi	sync with head.
1.32.4.2	04-May-2009	yamt	sync with head.
1.32.4.1	16-May-2008	yamt	sync with head.
1.32.2.3	17-Jun-2008	yamt	sync with head.
1.32.2.2	04-Jun-2008	yamt	sync with head
1.32.2.1	18-May-2008	yamt	sync with head.
1.33.2.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.33.2.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.35.2.7	31-Jul-2008	simonb	Sync with head.
1.35.2.6	21-Jul-2008	simonb	Sync with head.
1.35.2.5	18-Jul-2008	simonb	Sync with head.
1.35.2.4	03-Jul-2008	simonb	Sync with head.
1.35.2.3	01-Jul-2008	matt	More rb.c / wapbl fallout cleanup.
1.35.2.2	27-Jun-2008	simonb	Sync with head.
1.35.2.1	10-Jun-2008	simonb	Initial commit of Wasabi System's WAPBL (Write Ahead Physical Block Logging) journaling code. Originally written by Darrin B. Jewell while at Wasabi and updated to -current by Antti Kantee, Andy Doran, Greg Oster and Simon Burge. Still a number of issues - look in doc/BRANCHES for "simonb-wapbl" for more info.
1.39.2.1	19-Oct-2008	haad	Sync with HEAD.
1.192	22-Dec-2024	riastradh	kern: Move some purely arithmetic routines to subr_time_arith.c. Preparation for testing and fixing: PR kern/58922: itimer(9): arithmetic overflow PR kern/58925: itimer(9) responds erratically to clock wound back PR kern/58926: itimer(9) integer overflow in overrun counting PR kern/58927: itimer(9): overrun accounting is broken
1.191	03-Jun-2023	lukem	branches: 1.191.6; bsd.own.mk: rename GCC_NO_* to CC_WNO_* Rename compiler-warning-disable variables from GCC_NO_warning to CC_WNO_warning where warning is the full warning name as used by the compiler. GCC_NO_IMPLICIT_FALLTHRU is CC_WNO_IMPLICIT_FALLTHROUGH Using the convention CC_compilerflag, where compilerflag is based on the full compiler flag name.
1.190	22-Apr-2023	riastradh	rump: Move vnode_if.c from rumpkern to rumpvfs. This has become increasingly less of a `fully dynamic interface', and the need for it in the rest of sys/kern/ has been obviated, so let's put it where it belongs in rumpvfs.
1.189	22-Apr-2023	riastradh	secmodel_extensions: Split vfs part into separate .c file. This way we can provide weak rumpkern stubs that don't require rumpvfs for things that are relevant to vfs, but if you do link rumpvfs then you get the same logic in secmodel extensions.
1.188	28-Mar-2022	christos	include the extensions secmodel
1.187	27-Aug-2020	riastradh	Sort includes, nix trailing whitespace, fix comment.
1.186	27-Aug-2020	riastradh	Move address hashing from init_main.c to kern_sysctl.c. This way rump gets it automatically. Make sure blake2s is in librumpkern.so, not just in librumpkern_crypto.so, for this to work.
1.185	14-Aug-2020	riastradh	New system call getrandom() compatible with Linux and others. Three ways to call: getrandom(p, n, 0) Blocks at boot until full entropy. Returns up to n bytes at p; guarantees up to 256 bytes even if interrupted after blocking. getrandom(0,0,0) serves as an entropy barrier: return only after system has full entropy. getrandom(p, n, GRND_INSECURE) Never blocks. Guarantees up to 256 bytes even if interrupted. Equivalent to /dev/urandom. Safe only after successful getrandom(...,0), getrandom(...,GRND_RANDOM), or read from /dev/random. getrandom(p, n, GRND_RANDOM) May block at any time. Returns up to n bytes at p, but no guarantees about how many -- may return as short as 1 byte. Equivalent to /dev/random. Legacy. Provided only for source compatibility with Linux. Can also use flags\|GRND_NONBLOCK to fail with EWOULDBLOCK/EAGAIN without producing any output instead of blocking. - The combination GRND_INSECURE\|GRND_NONBLOCK is the same as GRND_INSECURE, since GRND_INSECURE never blocks anyway. - The combinations GRND_INSECURE\|GRND_RANDOM and GRND_INSECURE\|GRND_RANDOM\|GRND_NONBLOCK are nonsensical and fail with EINVAL. As proposed on tech-userlevel, tech-crypto, tech-security, and tech-kern, and subsequently adopted by core (minus the getentropy part of the proposal, because other operating systems and participants in the discussion couldn't come to an agreement about getentropy and blocking semantics): https://mail-index.netbsd.org/tech-userlevel/2020/05/02/msg012333.html
1.184	28-Jul-2020	riastradh	Rewrite cprng_fast in terms of new ChaCha API.
1.183	30-Apr-2020	riastradh	Rewrite entropy subsystem. Primary goals: 1. Use cryptography primitives designed and vetted by cryptographers. 2. Be honest about entropy estimation. 3. Propagate full entropy as soon as possible. 4. Simplify the APIs. 5. Reduce overhead of rnd_add_data and cprng_strong. 6. Reduce side channels of HWRNG data and human input sources. 7. Improve visibility of operation with sysctl and event counters. Caveat: rngtest is no longer used generically for RND_TYPE_RNG rndsources. Hardware RNG devices should have hardware-specific health tests. For example, checking for two repeated 256-bit outputs works to detect AMD's 2019 RDRAND bug. Not all hardware RNGs are necessarily designed to produce exactly uniform output. ENTROPY POOL - A Keccak sponge, with test vectors, replaces the old LFSR/SHA-1 kludge as the cryptographic primitive. - `Entropy depletion' is available for testing purposes with a sysctl knob kern.entropy.depletion; otherwise it is disabled, and once the system reaches full entropy it is assumed to stay there as far as modern cryptography is concerned. - No `entropy estimation' based on sample values. Such `entropy estimation' is a contradiction in terms, dishonest to users, and a potential source of side channels. It is the responsibility of the driver author to study the entropy of the process that generates the samples. - Per-CPU gathering pools avoid contention on a global queue. - Entropy is occasionally consolidated into global pool -- as soon as it's ready, if we've never reached full entropy, and with a rate limit afterward. Operators can force consolidation now by running sysctl -w kern.entropy.consolidate=1. - rndsink(9) API has been replaced by an epoch counter which changes whenever entropy is consolidated into the global pool. . Usage: Cache entropy_epoch() when you seed. If entropy_epoch() has changed when you're about to use whatever you seeded, reseed. . Epoch is never zero, so initialize cache to 0 if you want to reseed on first use. . Epoch is -1 iff we have never reached full entropy -- in other words, the old rnd_initial_entropy is (entropy_epoch() != -1) -- but it is better if you check for changes rather than for -1, so that if the system estimated its own entropy incorrectly, entropy consolidation has the opportunity to prevent future compromise. - Sysctls and event counters provide operator visibility into what's happening: . kern.entropy.needed - bits of entropy short of full entropy . kern.entropy.pending - bits known to be pending in per-CPU pools, can be consolidated with sysctl -w kern.entropy.consolidate=1 . kern.entropy.epoch - number of times consolidation has happened, never 0, and -1 iff we have never reached full entropy CPRNG_STRONG - A cprng_strong instance is now a collection of per-CPU NIST Hash_DRBGs. There are only two in the system: user_cprng for /dev/urandom and sysctl kern.?random, and kern_cprng for kernel users which may need to operate in interrupt context up to IPL_VM. (Calling cprng_strong in interrupt context does not strike me as a particularly good idea, so I added an event counter to see whether anything actually does.) - Event counters provide operator visibility into when reseeding happens. INTEL RDRAND/RDSEED, VIA C3 RNG (CPU_RNG) - Unwired for now; will be rewired in a subsequent commit.
1.182	15-Jan-2020	ad	Merge from yamt-pagecache (after much testing): - Reduce unnecessary page scan in putpages esp. when an object has a ton of pages cached but only a few of them are dirty. - Reduce the number of pmap operations by tracking page dirtiness more precisely in uvm layer.
1.181	20-Dec-2019	ad	branches: 1.181.2; Split subr_cpu.c out of kern_cpu.c, to contain routines shared with rump.
1.180	16-Dec-2019	ad	- Extend the per-CPU counters matt@ did to include all of the hot counters in UVM, excluding uvmexp.free, which needs special treatment and will be done with a separate commit. Cuts system time for a build by 20-25% on a 48 CPU machine w/DIAGNOSTIC. - Avoid 64-bit integer divide on every fault (for rnd_add_uint32).
1.179	15-Dec-2019	ad	Merge from yamt-pagecache: - do gang lookup of pages using radixtree. - remove now unused uvm_object::uo_memq and vm_page::listq.queue.
1.178	12-Dec-2019	pgoyette	Eliminate per-hook duplication of common code as suggested by (and with major contributions from) riastradh@ Welcome to 9.99.23
1.177	13-Oct-2019	mrg	introduce some common variables for use in GCC warning disables: GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8) GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8) GCC_NO_STRINGOP_OVERFLOW -Wno-stringop-overflow (GCC 8) GCC_NO_CAST_FUNCTION_TYPE -Wno-cast-function-type (GCC 8) use these to turn off warnings for most GCC-8 complaints. many of these are false positives, most of the real bugs are already commited, or are yet to come. we plan to introduce versions of (some?) of these that use the "-Wno-error=" form, which still displays the warnings but does not make it an error, and all of the above will be re-considered as either being "fix me" (warning still displayed) or "warning is wrong."
1.176	02-Sep-2019	riastradh	Switch from NIST CTR_DRBG with AES to NIST Hash_DRBG with SHA-256. Benefits: - larger seeds -- a 128-bit key alone is not enough for `128-bit security' - better resistance to timing side channels than AES - a better-understood security story (https://eprint.iacr.org/2018/349) - no loss in compliance with US government standards that nobody ever got fired for choosing, at least in the US-dominated western world - no dirty endianness tricks - self-tests Drawbacks: - performance hit: throughput is reduced to about 1/3 in naive measurements => possible to mitigate by using hardware SHA-256 instructions => all you really need is 32 bytes to seed a userland PRNG anyway => if we just used ChaCha this would go away... XXX pullup-7 XXX pullup-8 XXX pullup-9
1.175	13-May-2019	bad	branches: 1.175.2; On the one thousand and ninth day rump's mainbus was moved from rumpdev to rumpkern, liberating all rumpnet users from the need to -lrumpdev -lrumpvfs just because a loopback interface is mandatory. Rename rumpdev/autoconf.c to rumpkern/rump_autoconf.c to avoid accidentally picking up e.g. sys/arch/amd64/amd64/autoconf.c through make's .PATH. Move rumpdev/MAINBUS.ioconf to rumpkern.
1.174	27-Jan-2019	pgoyette	Merge the [pgoyette-compat] branch
1.173	24-Dec-2018	thorpej	Add threadpool(9), an abstraction that provides shared pools of kernel threads running at specific priorities, with support for unbound pools and per-cpu pools. Written by riastradh@, and based on the May 2014 draft, with a few changes by me: - Working on the assumption that a relative few priorities will actually be used, reduce the memory footprint by using linked lists, rather than 2 large (and mostly empty) tables. The performance impact is essentially nil, since these lists are consulted only when pools are created (and destroyed, for DIAGNOSTIC checks), and the lists will have at most 225 entries. - Make threadpool job object, which the caller must allocate storage for, really opaque. - Use typedefs for the threadpool types, to reduce the verbosity of the API somewhat. - Fix a bunch of pool / worker thread / job object lifecycle bugs. Also include an ATF unit test, written by me, that exercises the basics of the API by loading a kernel module that exposes several sysctls that allow the ATF test script to create and destroy threadpools, schedule a basic job, and verify that it ran. And thus NetBSD 8.99.29 has arrived.
1.172	16-Dec-2018	rmind	Import thmap -- a concurrent trie-hash map, combining the elements of hashing and radix trie. It supports lock-free lookups and concurrent inserts/deletes. It is designed to be optimal as a general purpose concurrent associative array. Upstream: https://github.com/rmind/thmap Discussed on tech-kern@
1.171	14-Sep-2018	mrg	retire kern_xxx.c. long live kern_xxx.c. split it into kern_reboot.c and kern_scdebug.c. while here, add my copyright to kern_scdebug.c as it was largely rewritten for kernhist support.
1.170	25-Jul-2017	ozaki-r	branches: 1.170.2; 1.170.4; Add localcount to rump kernels
1.169	08-Apr-2017	christos	branches: 1.169.4; 1.169.6; adjust flag.
1.168	20-Aug-2016	christos	branches: 1.168.2; need kern_ssp.c for a full SSP build.
1.167	11-Apr-2016	ozaki-r	branches: 1.167.2; Add psref to rump kernel
1.166	26-Jan-2016	pooka	nuke a few missed -Ifactiondir CPPFLAGSitions.
1.165	19-Oct-2015	pooka	Add a COMMENT describing what each component roughly does. "make describe" prints the comment. Requested/inspired by Vincent Schwarzer on rumpkernel-users
1.164	15-Sep-2015	pooka	Use the more widely accepted version of alphabetical order.
1.163	31-Aug-2015	ozaki-r	Allow rumpkernel to use rw_obj_*
1.162	21-Aug-2015	christos	Remove KERN.ioconf, ksyms does not really need it.
1.161	20-Aug-2015	christos	generate ioconf.h for pseudo-device attach prototype
1.160	17-Jun-2015	pooka	Remove unreal allocators, unconditionally use subr_{kmem,pool}. Will, with other work, allow to tighten the memory allocation hypercall specification to page-granularity allocations in the future.
1.159	23-Apr-2015	pooka	Rename RUMP_COMPAT to RUMP_NBCOMBAT to better signify what the variable does.
1.158	23-Apr-2015	pooka	g/c the never-used and never-useful hyperstubs.c
1.157	22-Apr-2015	pooka	Build compat code only when specified by RUMP_COMPAT
1.156	22-Apr-2015	pooka	Include kern_clock.c in rump kernels.
1.155	14-Apr-2015	riastradh	Fix rump build: rndpseudo_50.c now needed by kernel, not rnd device.
1.154	04-Feb-2015	pooka	default newvers.sh parameters to reproducible build
1.153	07-Jan-2015	pooka	Move sysproxy support into a separate component, rumpkern_sysproxy, instead of it being always provided by the rump kernel base. This move accomplishes two things: 1) it is no longer necessary to provide sysproxy hypercall stubs for platforms which do not want to use sysproxy 2) it is easier to reason about the security aspects, since configurations not linking the sysproxy component simply do not support remote system calls discussed on rumpkernel-users
1.152	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.151	02-Dec-2014	pooka	Remove shlib_version files and just use Makefile SHLIB_MAJOR/MINOR, with the default provided by Makefile.rump (they're all 0.0 anyway)
1.150	09-Nov-2014	pooka	branches: 1.150.2; Move rump kernel man pages from various sources to sys/rump namely: * src/lib is used only when building for POSIX'y platforms, but the man pages have their use for all platforms * rumpuser.3 is a function of the rump kernel, not one of the of the POSIX'y implementation hosted in src/lib/librumpuser no functional change
1.149	11-Aug-2014	matt	Add MKCOMPAT support for aarch64 (COMPAT_MACHINE_CPU)
1.148	10-Aug-2014	tls	branches: 1.148.2; 1.148.4; 1.148.8; Merge tls-earlyentropy branch into HEAD.
1.147	05-Jun-2014	rmind	librump: include pcq(9) interface.
1.146	27-Apr-2014	pooka	Eliminate weak symbols from rump kernel syscall handlers, part 7: Build component constructors which establish syscalls at boottime.
1.145	25-Apr-2014	pooka	gardenize rump.c: move data structure helper routines to accessors.c
1.144	25-Apr-2014	pooka	Move the etfs linkage from rumpvfs to rumpkern, and replace the weak alias show with an honest pointer indirection. No client-visible change. (apart from this version working e.g. on musl w/ dlopen)
1.143	04-Apr-2014	njoly	branches: 1.143.2; Add compat 50 time syscalls, needed by rump sys_linux.
1.142	02-Apr-2014	pooka	Put nanosleep() and folks in librump instead of maintaining them in the separate rumpkern_time component. Keeping time-related routines elsewhere lead to some illogical behavior if you didn't think of linking in rumpkern_time (hands up everyone who checks the return value of nanosleep()). Add warnings if rumpkern_time is linked or used. I'll remove it in a month or two instead of now since it was part of a buildrump.sh snapshot and it's nicer if trying to use it gives a warning instead of an error in the next snapshot. "everything should be as modular as possible, but no more modular than that"
1.141	15-Mar-2014	pooka	Use uniprocessor-optimized locking in RUMP_LOCKS_UP=yes (default: no)
1.140	13-Mar-2014	pooka	Allow multiple "rumpcomp_user" source modules to be specified by introducing RUMPCOMP_USER_SRCS. Make RUMPCOMP_USER issue a deprecation warning, but for compat make it set RUMPCOMP_USER_SRCS=rumpcomp_user.c for now.
1.139	10-Mar-2014	pooka	Move the "is arch capable of loading native kernel modules into rump kernel" clauses from bsd.own.mk to Makefile.rump. Also, add a rump_nativeabi_p() call to determine if rump kernel is compiled with native ABI support.
1.138	28-Feb-2014	matt	Use the new FEAT_LDREX to replace ARMV6/ARMV7
1.137	18-Feb-2014	pooka	Use same uvm_swap_shutdown() stub for !vmswap kernels and rump kernels.
1.136	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.135	17-Jan-2014	pooka	Use subr_cprng.c instead of stub implementation. Rijndael migrates from rumpkern_crypto to rumpkern due to it being mandatory for cprng.
1.134	09-Dec-2013	pooka	Make ktrace a compile-time option
1.133	09-Dec-2013	pooka	Support ktrace for rump kernels. Requested by Justin Cormack on rumpkernel-users.
1.132	07-Sep-2013	pooka	Add an initial console device and open fd's 0/1/2 for initproc. This is again useful in standalone-type environments such as Xen, where all printf/etc calls go through the rump kernel.
1.131	03-Sep-2013	pooka	+ don't rename rump_syscalls.*o + support RUMP_KERNEL_IS_LIBC
1.130	22-Aug-2013	matt	Teach this about ARMV7
1.129	18-Jul-2013	matt	Coldfire uses atomic_cas_generic.c
1.128	23-Jun-2013	riastradh	branches: 1.128.2; 1.128.4; Rework rndsink(9) abstraction and adapt arc4random(9) and cprng(9). rndsink(9): - Simplify API. - Simplify locking scheme. - Add a man page. - Avoid races in destruction. - Avoid races in requesting entropy now and scheduling entropy later. Periodic distribution of entropy to sinks reduces the need for the last one, but this way we don't need to rely on periodic distribution (e.g., in a future tickless NetBSD). rndsinks_lock should probably eventually merge with the rndpool lock, but we'll put that off for now. cprng(9): - Make struct cprng_strong opaque. - Move rndpseudo.c parts that futz with cprng guts to subr_cprng.c. - Fix kevent locking. (Is kevent locking documented anywhere?) - Stub out rump cprng further until we can rumpify rndsink instead. - Strip code to grovel through struct cprng_strong in fstat.
1.127	01-May-2013	pooka	Actually, there's no point in unconditionally compiling in weak stubs which will never be used in the NetBSD build. Comment hyperstubs.c out from SRCS, but retain the source module as documentation.
1.126	30-Apr-2013	pooka	weak stubs for optional hypercalls
1.125	27-Apr-2013	pooka	* treat kern_malloc.c as an unreal allocator (it's so lightweight) * get rid of the rumpuser_realloc() hypercall * pass size to rumpuser_free()
1.124	15-Mar-2013	pooka	Allow Makefile.rump to append to SRCS.
1.123	10-Mar-2013	pooka	Use kern_malloc.c instead of the relegated allocators in memalloc.c. Previously this didn't make sense due to the use of kmem_map, but the new malloc is more dynamic and puts sense into using it.
1.122	10-Mar-2013	pooka	Always include subr_vmem.c, even with RUMP_UNREAL_ALLOCATORS=yes (previously it was just missing in that case). Record wchan to unreal pool_init() to avoid memory leak warning.
1.121	30-Dec-2012	pooka	Take into account armv6 hacks from common/lib/libc/arch/arm/atomic to allow this to build with -march=armv6k
1.120	04-Nov-2012	apb	Add references to ${_NETBSD_VERSION_DEPENDS} for files that need to be re-created when the NetBSD version changes. They will also be re-created when any build settings are changed.
1.119	20-Jul-2012	pooka	branches: 1.119.2; Make it possible to select between real and unreal allocators from make. Plus some gratuitous renaming.
1.118	22-Jun-2012	rmind	rumpkern: - Add subr_kcpuset.c and subr_pserialize.c modules. - Add kcpuset_{running,attached} for RUMP env.
1.117	29-Apr-2012	rmind	G/C kern_malloc_stdtype.c
1.116	10-Mar-2012	joerg	P1003_1B_SEMAPHORE is no longer optional.
1.115	02-Feb-2012	tls	branches: 1.115.2; Entropy-pool implementation move and cleanup. 1) Move core entropy-pool code and source/sink/sample management code to sys/kern from sys/dev. 2) Remove use of NRND as test for presence of entropy-pool code throughout source tree. 3) Remove use of RND_ENABLED in device drivers as microoptimization to avoid expensive operations on disabled entropy sources; make the rnd_add calls do this directly so all callers benefit. 4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might have lead to slight entropy overestimation for some sources. 5) Add new source types for environmental sensors, power sensors, VM system events, and skew between clocks, with a sample implementation for each. ok releng to go in before the branch due to the difficulty of later pullup (widespread #ifdef removal and moved files). Tested with release builds on amd64 and evbarm and live testing on amd64.
1.114	04-Dec-2011	jym	Implement the register/deregister/evaluation API for secmodel(9). It allows registration of callbacks that can be used later for cross-secmodel "safe" communication. When a secmodel wishes to know a property maintained by another secmodel, it has to submit a request to it so the other secmodel can proceed to evaluating the request. This is done through the secmodel_eval(9) call; example: bool isroot; error = secmodel_eval("org.netbsd.secmodel.suser", "is-root", cred, &isroot); if (error == 0 && !isroot) result = KAUTH_RESULT_DENY; This one asks the suser module if the credentials are assumed to be root when evaluated by suser module. If the module is present, it will respond. If absent, the call will return an error. Args and command are arbitrarily defined; it's up to the secmodel(9) to document what it expects. Typical example is securelevel testing: when someone wants to know whether securelevel is raised above a certain level or not, the caller has to request this property to the secmodel_securelevel(9) module. Given that securelevel module may be absent from system's context (thus making access to the global "securelevel" variable impossible or unsafe), this API can cope with this absence and return an error. We are using secmodel_eval(9) to implement a secmodel_extensions(9) module, which plugs with the bsd44, suser and securelevel secmodels to provide the logic behind curtain, usermount and user_set_cpu_affinity modes, without adding hooks to traditional secmodels. This solves a real issue with the current secmodel(9) code, as usermount or user_set_cpu_affinity are not really tied to secmodel_suser(9). The secmodel_eval(9) is also used to restrict security.models settings when securelevel is above 0, through the "is-securelevel-above" evaluation: - curtain can be enabled any time, but cannot be disabled if securelevel is above 0. - usermount/user_set_cpu_affinity can be disabled any time, but cannot be enabled if securelevel is above 0. Regarding sysctl(7) entries: curtain and usermount are now found under security.models.extensions tree. The security.curtain and vfs.generic.usermount are still accessible for backwards compat. Documentation is incoming, I am proof-reading my writings. Written by elad@, reviewed and tested (anita test + interact for rights tests) by me. ok elad@. See also http://mail-index.netbsd.org/tech-security/2011/11/29/msg000422.html XXX might consider va0 mapping too. XXX Having a secmodel(9) specific printf (like aprint_*) for reporting secmodel(9) errors might be a good idea, but I am not sure on how to design such a function right now.
1.113	27-Nov-2011	tsutsui	branches: 1.113.2; Revert "stopcap fix" for rump by christos, which causes build failure on most non-x86 ports and seems unnecessary. (caused by wrong rump_namei.h?)
1.112	25-Nov-2011	christos	Add subr_open_disk.c for getdiskinfo(). Once we get rid of getdiskinfo, this will not be needed.
1.111	19-Nov-2011	tls	First step of random number subsystem rework described in <20111022023242.BA26F14A158@mail.netbsd.org>. This change includes the following: An initial cleanup and minor reorganization of the entropy pool code in sys/dev/rnd.c and sys/dev/rndpool.c. Several bugs are fixed. Some effort is made to accumulate entropy more quickly at boot time. A generic interface, "rndsink", is added, for stream generators to request that they be re-keyed with good quality entropy from the pool as soon as it is available. The arc4random()/arc4randbytes() implementation in libkern is adjusted to use the rndsink interface for rekeying, which helps address the problem of low-quality keys at boot time. An implementation of the FIPS 140-2 statistical tests for random number generator quality is provided (libkern/rngtest.c). This is based on Greg Rose's implementation from Qualcomm. A new random stream generator, nist_ctr_drbg, is provided. It is based on an implementation of the NIST SP800-90 CTR_DRBG by Henric Jungheim. This generator users AES in a modified counter mode to generate a backtracking-resistant random stream. An abstraction layer, "cprng", is provided for in-kernel consumers of randomness. The arc4random/arc4randbytes API is deprecated for in-kernel use. It is replaced by "cprng_strong". The current cprng_fast implementation wraps the existing arc4random implementation. The current cprng_strong implementation wraps the new CTR_DRBG implementation. Both interfaces are rekeyed from the entropy pool automatically at intervals justifiable from best current cryptographic practice. In some quick tests, cprng_fast() is about the same speed as the old arc4randbytes(), and cprng_strong() is about 20% faster than rnd_extract_data(). Performance is expected to improve. The AES code in src/crypto/rijndael is no longer an optional kernel component, as it is required by cprng_strong, which is not an optional kernel component. The entropy pool output is subjected to the rngtest tests at startup time; if it fails, the system will reboot. There is approximately a 3/10000 chance of a false positive from these tests. Entropy pool _input_ from hardware random numbers is subjected to the rngtest tests at attach time, as well as the FIPS continuous-output test, to detect bad or stuck hardware RNGs; if any are detected, they are detached, but the system continues to run. A problem with rndctl(8) is fixed -- datastructures with pointers in arrays are no longer passed to userspace (this was not a security problem, but rather a major issue for compat32). A new kernel will require a new rndctl. The sysctl kern.arandom() and kern.urandom() nodes are hooked up to the new generators, but the /dev/*random pseudodevices are not, yet. Manual pages for the new kernel interfaces are forthcoming.
1.110	12-Jun-2011	mrg	branches: 1.110.2; include uvm_object.c in the rump kernel for the new uvm_obj* functions. don't build the uvm_object.c uvm_object_printit() for _RUMPKERNEL. (XXX) add empty panic() stubs for uvm_loanbreak() and ubc_purge(). fixes some more 5.99.53 rump build issues.
1.109	19-May-2011	joerg	branches: 1.109.2; Spell --fatal-warnings with two hyphens
1.108	21-Mar-2011	joerg	Include bsd.own.mk before making decisions based on mk.conf.
1.107	17-Jan-2011	pooka	use compat code from sys/compat/common
1.106	06-Jan-2011	pooka	branches: 1.106.2; Support LOCKDEBUG. To use it, compile sys/rump with RUMP_LOCKDEBUG=yes. requested by martin (sparc64 gdb cannot reliably produce a stack trace)
1.105	04-Jan-2011	pooka	Add SMP support for all architectures. tested on sparc64 by martin
1.104	17-Dec-2010	joerg	Support MKREPRO
1.103	26-Nov-2010	pooka	Duh, it's x86_64, not amd64. This should make the races which require SMP trigger in the amd64/qemu runs again.
1.102	22-Nov-2010	pooka	rename atomic_cas_up to rump_atomic_cas_up to avoid collisions
1.101	21-Nov-2010	pooka	Encode smp-capability into the makefile so that it can be used to avoid potential screwups.
1.100	21-Nov-2010	pooka	Add a lockless uniprocessor version of atomic_cas_generic.c, which is currently used by all the archs that previously used cas_generic.
1.99	21-Nov-2010	pooka	Realize the >1yo comment above rump_reboot and retire them to make room for sys_reboot.
1.98	27-Oct-2010	pooka	"i build dead files". ok, so let's not.
1.97	06-Sep-2010	pooka	Use standard uvm aobj pager. Most of the kernel aobj pager complexity comes from swap handling, but that is included only with VMSWAP.
1.96	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.95	30-Aug-2010	pooka	Include kern_prot.c for setuid etc.
1.94	30-Aug-2010	pooka	Use one line per sys/kern source module. no functional change.
1.93	21-Aug-2010	pgoyette	Add the new kern_cfglock.c to rump.
1.92	19-Jul-2010	pooka	* move stat syscalls to newstyle compat * implement compat for pollts
1.91	16-Jun-2010	pooka	Reinstate the blanket pmap.h for archs which do not conform to the kernel ABI (i.e. not i386 or amd64). Due to the "half function, half macro, all noodles" nature of pmap.h, it's too entangling and too brittle to keep up with an ifdeffy MI implementation.
1.90	13-Jun-2010	pooka	Fix previous in emul.c -- only numbers are operands for cpp comparisons. Apparently non-numbers logically produce arch-dependent behaviour.
1.89	10-Jun-2010	pooka	Use kern_proc.c instead of a collection of stubs. But what we really wanted from this commit was the support for proc_specificdata. TODO: make creating a new process actually use kern_proc and maybe even add an interface which starts a process with "any pid you don't like"
1.88	06-Jun-2010	njoly	Make vers.c depend on sys/param.h too, to ensure that this file is regenerated for on kernel version bump. Avoids __NetBSD_Version__ and osrelease out of sync problem for mkupdate builds. ok from pooka@.
1.87	18-May-2010	pooka	Whoops, default to MP locking.
1.86	18-May-2010	pooka	Add uniprocessor versions of mutex/rw/cv. They work only on virtual unicpu configurations (i.e. RUMP_NCPU==1), but are massively faster than the multiprocessor versions since the fast path does not have to perform any cache coherent operations. _Applications_ with lock-happy kernel paths, i.e. _not_ lock microbenchmarks, measure up to tens of percents speedup on my Core2 Duo. Every globally atomic state required by normal locks/atomic ops implies a hideous speed penalty even for the fast path. While this requires a unicpu configuration, it should be noted that we are talking about a virtual unicpu configuration. The host can have as many processors as it desires, and the speed benefit of virtual unicpu is still there. It's pretty obvious that in terms of scalability simple workload partitioning and replication into multiple kernels wins hands down over complicated locking or locklessing algorithms which depend on globally atomic state.
1.85	18-May-2010	pooka	Move routines related to kernel locking and scheduling from locks.c to klock.c. No functional change.
1.84	11-May-2010	pooka	Actually, push defining _RUMPKERNEL down to libkern, since it's not needed elsewhere.
1.83	11-May-2010	pooka	Limit visibility of _RUMPKERNEL to prevent abuse.
1.82	30-Apr-2010	pooka	Include devsw_conv0 from an i386 kernel compilation (no, we don't care about the arch as long as all the devices we care about are present). The file should be autogenerated, but that requires some more changes to config(1).
1.81	26-Apr-2010	pooka	Implement kobj_renamespace() for rump. Support for a few archs is missing, but that doesn't really matter, since they are living in their own "everything is a macro" happyland and don't support the native kernel ABI anyway.
1.80	21-Apr-2010	pooka	Move sys_module from vfs to kern -- while modules cannot be loaded, there's not forbidden about querying the list of (builtin) modules even when running without vfs.
1.79	21-Apr-2010	pooka	support kern_resource
1.78	21-Apr-2010	pooka	Move all signal-related from emul.c to signals.c. Additionally, define a few alternate signal models for the rump kernel, including ones where signals are ignored or sent to host processes.
1.77	14-Apr-2010	pooka	Use kern_syscall.c instead of homegrown syscall dis/establishment routines.
1.76	14-Apr-2010	pooka	Include kern_tc and use a timecounter driver instead of homerolled kern_tc implementation.
1.75	12-Apr-2010	pooka	support lwp specificdata
1.74	16-Feb-2010	pooka	branches: 1.74.2; Globally define -Wno-pointer-sign, as it has become a pointless exercise of "add it to every Makefile individually". XXX: should autosynchronize with the rest of the kernel buildflags in sys/conf/Makefile.kern.inc.
1.73	31-Jan-2010	pooka	branches: 1.73.2; Include newly-created subr_device.c and remove few special case device accessor copypastes. This makes it possible to link static binaries which use -lrumpdev.
1.72	31-Jan-2010	pooka	include kern_hook.c
1.71	15-Jan-2010	pooka	Use subr_percpu.c instead of homegrown implementation. ...except when using malloc(3)-relegated allocators (happens in production e.g. on Linux), since subr_percpu.c uses vmem and i don't want to reimplement vmem.
1.70	16-Dec-2009	pooka	update to newnewvers.sh usage
1.69	16-Dec-2009	pooka	Generate vers.c and include it in the kernel component.
1.68	14-Dec-2009	matt	Make librump play with mips nicely. Define ARCH_ELFSIZE for mips to be 32. This works for N64 kernels because objcopy them to be 32bit to the bootloaders can handle them.
1.67	13-Dec-2009	mrg	rename LD32DIR to MLIBDIR.
1.66	01-Dec-2009	pooka	Include cpu crosscall support (instead of stubbing it out).
1.65	27-Nov-2009	pooka	Now that Makefile.rump was changed and everything gets built in update builds too, flip the allocator define to prefer the kernel pool/kmem instead of malloc(3). Use malloc(3) only if RUMP_USE_UNREAL_ALLOCATORS is defined.
1.64	26-Nov-2009	pooka	include sys_pipe.c
1.63	06-Nov-2009	pooka	Enable kernel kmem/vmem/pool/pool_cache by default again instead of malloc(3) allocators.
1.62	04-Nov-2009	pooka	misc_stub and emul have been the same thing for a looong time now, so just move the few remaining routines in misc_stub to emul.
1.61	04-Nov-2009	pooka	Give the kthread->pthread interface emulation its own module.
1.60	04-Nov-2009	pooka	Pull all relegating memory allocators under a common roof in memalloc.c
1.59	04-Nov-2009	pooka	move copy-related routines to their own module
1.58	04-Nov-2009	pooka	Use std. uiomove() & friends.
1.57	04-Nov-2009	pooka	Use kern_mutex_obj.c directly instead of copypasting code.
1.56	03-Nov-2009	pooka	move module to SRCS where it logically belongs. no functional change.
1.55	20-Oct-2009	pooka	Actually, put uvm_readahead into rumpkern, since while it's technically vfs stuff, sys_descrip depends on it and readahead itself uses only the pager interface.
1.54	19-Oct-2009	christos	treat sun2 like the other losing platforms.
1.53	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.52	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.51	14-Oct-2009	pooka	Adjust rump sources for external/internal interfaces. No functional change.
1.50	02-Oct-2009	elad	First part of secmodel cleanup and other misc. changes: - Separate the suser part of the bsd44 secmodel into its own secmodel and directory, pending even more cleanups. For revision history purposes, the original location of the files was src/sys/secmodel/bsd44/secmodel_bsd44_suser.c src/sys/secmodel/bsd44/suser.h - Add a man-page for secmodel_suser(9) and update the one for secmodel_bsd44(9). - Add a "secmodel" module class and use it. Userland program and documentation updated. - Manage secmodel count (nsecmodels) through the module framework. This eliminates the need for secmodel_{,de}register() calls in secmodel code. - Prepare for secmodel modularization by adding relevant module bits. The secmodels don't allow auto unload. The bsd44 secmodel depends on the suser and securelevel secmodels. The overlay secmodel depends on the bsd44 secmodel. As the module class is only cosmetic, and to prevent ambiguity, the bsd44 and overlay secmodels are prefixed with "secmodel_". - Adapt the overlay secmodel to recent changes (mainly vnode scope). - Stop using link-sets for the sysctl node(s) creation. - Keep sysctl variables under nodes of their relevant secmodels. In other words, don't create duplicates for the suser/securelevel secmodels under the bsd44 secmodel, as the latter is merely used for "grouping". - For the suser and securelevel secmodels, "advertise presence" in relevant sysctl nodes (sysctl.security.models.{suser,securelevel}). - Get rid of the LKM preprocessor stuff. - As secmodels are now modules, there's no need for an explicit call to secmodel_start(); it's handled by the module framework. That said, the module framework was adjusted to properly load secmodels early during system startup. - Adapt rump to changes: Instead of using empty stubs for securelevel, simply use the suser secmodel. Also replace secmodel_start() with a call to secmodel_suser_start(). - 5.99.20. Testing was done on i386 ("release" build). Spearated module_init() changes were tested on sparc and sparc64 as well by martin@ (thanks!). Mailing list reference: http://mail-index.netbsd.org/tech-kern/2009/09/25/msg006135.html
1.49	02-Oct-2009	pooka	Include humanize and extent support in rumpkern.
1.48	16-Sep-2009	pooka	include init_sysctl_base.c
1.47	06-Sep-2009	pooka	Run rump_dev_init() where available.
1.46	02-Jun-2009	pooka	include syscalls.c
1.45	02-May-2009	pooka	branches: 1.45.2; Do not include securelevel, it includes too many dependencies on vfs in its current form.
1.44	29-Apr-2009	pooka	Add proof-of-concept code for enabling system calls to rump virtual kernels running in other processes on the same machine or on an entirely different host. I wrote this a while ago and am now committing it mainly to avoid losing it. It works, but could do with a little tuning here and there. What this will hopefully eventually buy us is the ability to use standard userland tools to configure rump kernels, e.g. ifconfig(8) and route(8) could be used to configure the networking stack provided by a rump kernel. Also some distributed OS implications may apply. fun fact: a system call which just does copyin/copyout takes >1000x longer when made over the LAN as compared to when made on the same machine.
1.43	16-Apr-2009	pooka	When I switched to real kauth, I forgot to include a secmodel. Fix this oversight by including bsd44. Makes permissions for p2k work again.
1.42	29-Mar-2009	pooka	include subr_evcnt
1.41	18-Mar-2009	pooka	Support kqueue in the rump virtual kernel.
1.40	30-Jan-2009	pooka	branches: 1.40.2; Turn of real allocators and fall back to malloc(3) for the time being. Since we have many threads but pretend to have only one cpu, the pool code runs into concurrency trouble for cpu-private data.
1.39	23-Jan-2009	pooka	Add a compile-time option to use kmem/vmem/pools from the kernel sources instead of homegrown allocators. Default to "on", even though they appear to be a few percent slower at least on short jobs (e.g. untar to tmpfs).
1.38	18-Jan-2009	he	Change the use of formally undocumented features, which have now been made to fail. Specifically, change .ifdef(SYMBOL) -> .ifdef SYMBOL or .if defined(SYMBOL), and corresponding for .ifndef. Also correct one error in lib/libm/Makefile (.ifdef (${MKCOMPLEX} != "no")?!?).
1.37	14-Jan-2009	pooka	Do rump kernel symbol protection for vax. All archs support it now.
1.36	12-Jan-2009	pooka	* Add adapted version of the userspace atomic_cas ops for platforms lacking special instructions. We always use the spinlocked version (could use RAS on UP NetBSD host, but it's not portable). * Add platform-based symbol quirk tables for selectively not renaming toolchain symbols for some platforms. Although, this should really depend on the (toolchain,platform)-tuple and not just the platform. This allows arm, hppa, mips and sh3 to build succesfully with an isolated rump kernel namespace. ... now, one arch remains: vax. you must compile vax. then, only then will you MI be.
1.35	08-Jan-2009	pooka	Remove vax MD source which is now brought in automatically via libkern.
1.34	06-Jan-2009	pooka	adjust LD32DIR comment. per discussion with mrg
1.33	05-Jan-2009	pooka	Rename malloc() to kern_malloc() to avoid name conflict with libc. Now it is possible to use the kernel linker with rump.
1.32	05-Jan-2009	pooka	Assemble with _LOCORE.
1.31	04-Jan-2009	pooka	Include libkern contents in librump.
1.30	02-Jan-2009	pooka	Add kludge to allow amd64 compat to build. This is not a proper fix which most likely requires some compat lib build infra toggle.
1.29	02-Jan-2009	pooka	Include kernel printf routines in rump instead of relying on the magic libc symbol. This also allows to bid farewell to subr_prf2.c and merge the contents back to subr_prf.c. The host kernel bridging is now done via rumpuser_putchar().
1.28	01-Jan-2009	pooka	Purge multiple kernel opt files.
1.27	01-Jan-2009	pooka	Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.26	31-Dec-2008	pooka	Include rb.c instead of relying on it being in libc.
1.25	30-Dec-2008	pooka	-I${RUMPTOP}/librump/rumpkern so that build from src/lib works. noted by Geoff Wing on current-users
1.24	29-Dec-2008	pooka	Switch i386 away from rump/include/machine. This means that rump on i386 now uses the native kernel ABI. This in turn means that rump modules and kernel modules are binary equivalent and can be used interchangeably.
1.23	29-Dec-2008	pooka	include subr_devsw in rumpkern
1.22	18-Dec-2008	pooka	include snprintb
1.21	18-Dec-2008	pooka	.PATH maintenance
1.20	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.19	18-Nov-2008	pooka	cwd is logically a vfs concept, so take it out from the bosom of kern_descrip and into vfs_cwd. No functional change.
1.18	17-Nov-2008	pooka	Move rump public headers to include/rump
1.17	25-Oct-2008	apb	branches: 1.17.2; 1.17.4; Use ${TOOL_SED} instead if plain sed in Makefiles.
1.16	15-Oct-2008	pooka	branches: 1.16.2; Add support bits necessary for rumpnet functionality.
1.15	11-Oct-2008	pooka	Move uidinfo to its own module in kern_uidinfo.c and include in rump. No functional change to uidinfo.
1.14	10-Oct-2008	pooka	Add a simple percpu implementation (which isn't actually percpu at all, since we don't currently have the notion of "real" cpu in rump...but that's beyond the point).
1.13	10-Oct-2008	pooka	Support callouts and call callout_hardclock() from the timer interrupt thread. The sleepq implementation required for callouts is horrible, kludged only for callouts, and generally unacceptable. It needs revisiting, but I'm not sure yet should rump or kern_timeout be improved. It's almost untested as of now, but committing this will give me some maneuvering space while letting application compile.
1.12	09-Oct-2008	pooka	add kern_rate, subr_iostat and subr_once
1.11	09-Oct-2008	pooka	Reorganize SRCS+= into smaller chunks to make adding new files easier. No functional change.
1.10	09-Oct-2008	pooka	No point in having our private atomic ops, just use the ones now available in libc.
1.9	30-Sep-2008	pooka	Switch to std kern_auth.
1.8	27-Sep-2008	pooka	branches: 1.8.2; Help out reinoud a bit with the challenge of adding vfs_dirhash.c here
1.7	25-Sep-2008	pooka	Move global malloc types from kern_malloc into a separate module.
1.6	04-Aug-2008	pooka	branches: 1.6.2; Add support for using real kmem/vmem. Don't enable it by default, though, since it a) is a lot of unnecessary indirection in rump b) requires callouts which are so far unimplemented.
1.5	02-Aug-2008	simonb	sort sys/kern SRCS alphabetically.
1.4	01-Aug-2008	pooka	support real sysctls
1.3	31-Jul-2008	simonb	Merge the simonb-wapbl branch. From the original branch commit: Add Wasabi System's WAPBL (Write Ahead Physical Block Logging) journaling code. Originally written by Darrin B. Jewell while at Wasabi and updated to -current by Antti Kantee, Andy Doran, Greg Oster and Simon Burge. OK'd by core@, releng@.
1.2	30-Jul-2008	oster	branches: 1.2.2; Fix race during creation of rumpdefs.h, rumpvnode_if.h, and rumpvnode_if.c. Patch from pooka@ with tweak from me. Approved by: pooka
1.1	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.2.2.2	31-Jul-2008	simonb	Sync with head.
1.2.2.1	30-Jul-2008	simonb	file Makefile.rumpkern was added on branch simonb-wapbl on 2008-07-31 04:51:05 +0000
1.6.2.3	10-Oct-2008	skrll	Sync with HEAD.
1.6.2.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.6.2.1	04-Aug-2008	wrstuden	file Makefile.rumpkern was added on branch wrstuden-revivesa on 2008-09-18 04:37:04 +0000
1.8.2.4	17-Jan-2009	mjf	Sync with HEAD.
1.8.2.3	05-Oct-2008	mjf	Sync with HEAD.
1.8.2.2	28-Sep-2008	mjf	Sync with HEAD.
1.8.2.1	27-Sep-2008	mjf	file Makefile.rumpkern was added on branch mjf-devfs2 on 2008-09-28 10:41:03 +0000
1.16.2.3	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.16.2.2	19-Oct-2008	haad	Sync with HEAD.
1.16.2.1	15-Oct-2008	haad	file Makefile.rumpkern was added on branch haad-dm on 2008-10-19 22:18:06 +0000
1.17.4.1	15-Jul-2011	riz	Pull up following revision(s) (requested by manu in ticket #1604): sys/fs/puffs/puffs_msgif.c: revision 1.84 Apply patch from PR kern/44093 by yamt: Interrupt server wait only on certain signals (same set at nfs -i) instead of all signals. According to the PR this helps with "git clone" run on a puffs file system.
1.17.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.17.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.17.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.40.2.2	23-Jul-2009	jym	Sync with HEAD.
1.40.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.45.2.7	09-Oct-2010	yamt	sync with head
1.45.2.6	11-Aug-2010	yamt	sync with head.
1.45.2.5	11-Mar-2010	yamt	sync with head
1.45.2.4	16-Sep-2009	yamt	sync with head
1.45.2.3	20-Jun-2009	yamt	sync with head
1.45.2.2	04-May-2009	yamt	sync with head.
1.45.2.1	02-May-2009	yamt	file Makefile.rumpkern was added on branch yamt-nfs-mp on 2009-05-04 08:14:29 +0000
1.73.2.4	06-Nov-2010	uebayasi	Sync with HEAD.
1.73.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.73.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.73.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.74.2.5	31-May-2011	rmind	sync with head
1.74.2.4	21-Apr-2011	rmind	sync with head
1.74.2.3	05-Mar-2011	rmind	sync with head
1.74.2.2	03-Jul-2010	rmind	sync with head
1.74.2.1	30-May-2010	rmind	sync with head
1.106.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.109.2.1	23-Jun-2011	cherry	Catchup with rmind-uvmplock merge.
1.110.2.7	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.110.2.6	23-Jan-2013	yamt	sync with head
1.110.2.5	16-Jan-2013	yamt	sync with (a bit old) head
1.110.2.4	30-Oct-2012	yamt	sync with head
1.110.2.3	23-May-2012	yamt	sync with head.
1.110.2.2	17-Apr-2012	yamt	sync with head
1.110.2.1	02-Nov-2011	yamt	page cache related changes - maintain object pages in radix tree rather than rb tree. - reduce unnecessary page scan in putpages. esp. when an object has a ton of pages cached but only a few of them are dirty. - reduce the number of pmap operations by tracking page dirtiness more precisely in uvm layer. - fix nfs commit range tracking. - fix nfs write clustering. XXX hack
1.113.2.3	29-Apr-2012	mrg	sync to latest -current.
1.113.2.2	11-Mar-2012	mrg	sync to latest -current
1.113.2.1	18-Feb-2012	mrg	merge to -current.
1.115.2.1	26-Jun-2012	riz	branches: 1.115.2.1.2; Pull up following revision(s) (requested by rmind in ticket #365): sys/rump/librump/rumpkern/rumpcpu_generic.c: revision 1.4 sys/net/npf/npf_session.c: revision 1.13 sys/net/npf/npf_tableset.c: revision 1.11 sys/net/npf/npf_state_tcp.c: revision 1.7 sys/net/npf/npf_inet.c: revision 1.12 sys/net/npf/npf.h: revision 1.17 sys/net/npf/npf_instr.c: revision 1.11 usr.sbin/npf/npftest/libnpftest/npf_table_test.c: revision 1.2 sys/net/npf/npf_state.c: revision 1.8 sys/net/npf/npf_log.c: revision 1.4 sys/net/npf/npf_alg.c: revision 1.4 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.118 sys/net/npf/npf_nat.c: revision 1.13 sys/net/npf/npf.c: revision 1.11 sys/net/npf/npf_sendpkt.c: revision 1.11 sys/net/npf/npf_impl.h: revision 1.16 sys/rump/librump/rumpkern/scheduler.c: revision 1.28 rumpkern: - Add subr_kcpuset.c and subr_pserialize.c modules. - Add kcpuset_{running,attached} for RUMP env. NPF: - Rename some functions for consistency and de-inline them. - Fix few invalid asserts (add regressoin test). - Use pserialize(9) for ALG interface. - Minor fixes, sprinkle many comments.
1.115.2.1.2.1	06-Dec-2012	matt	Only add atomic_cas_generic.c to SRCS if there isn't already some atomic_cas_* already in SRCS.
1.119.2.5	03-Dec-2017	jdolecek	update from HEAD
1.119.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.119.2.3	23-Jun-2013	tls	resync from head
1.119.2.2	25-Feb-2013	tls	resync with head
1.119.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.128.4.1	23-Jul-2013	riastradh	sync with HEAD
1.128.2.2	18-May-2014	rmind	sync with head
1.128.2.1	28-Aug-2013	rmind	sync with head
1.143.2.2	10-Aug-2014	tls	Rebase.
1.143.2.1	09-Aug-2014	tls	Replace "ccrand" ChaCha implementation of cprng_fast with Taylor's smaller and somewhat simpler one. Fix rump builds so we can build a distribution.
1.148.8.1	03-Sep-2019	martin	Pull up following revision(s) (requested by riastradh in ticket #1705): sys/crypto/nist_hash_drbg/nist_hash_drbg.c: revision 1.1 sys/crypto/nist_hash_drbg/nist_hash_drbg.h: revision 1.1 sys/rump/kern/lib/libcrypto/Makefile: revision 1.5 sys/crypto/nist_hash_drbg/files.nist_hash_drbg: revision 1.1 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.176 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes256.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_drbg_config.h: file removal sys/conf/files: revision 1.1238 sys/dev/rndpseudo.c: revision 1.38 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.c: file removal sys/sys/cprng.h: revision 1.13 - 1.15 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_aes_rijndael.h: file removal sys/crypto/nist_ctr_drbg/files.nist_ctr_drbg: file removal sys/kern/subr_cprng.c: revision 1.31 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes128.h: file removal cprng.h: use static __inline for consistency with other include headers and remove an unused function. - Switch from NIST CTR_DRBG with AES to NIST Hash_DRBG with SHA-256. Benefits: - larger seeds -- a 128-bit key alone is not enough for `128-bit security' - better resistance to timing side channels than AES - a better-understood security story (<a rel="nofollow" href="https://eprint.iacr.org/2018/349">https://eprint.iacr.org/2018/349</a>) - no loss in compliance with US government standards that nobody ever got fired for choosing, at least in the US-dominated western world - no dirty endianness tricks - self-tests Drawbacks: - performance hit: throughput is reduced to about 1/3 in naive measurements => possible to mitigate by using hardware SHA-256 instructions => all you really need is 32 bytes to seed a userland PRNG anyway => if we just used ChaCha this would go away...
1.148.4.1	03-Sep-2019	martin	Pull up following revision(s) (requested by riastradh in ticket #1705): sys/crypto/nist_hash_drbg/nist_hash_drbg.c: revision 1.1 sys/crypto/nist_hash_drbg/nist_hash_drbg.h: revision 1.1 sys/rump/kern/lib/libcrypto/Makefile: revision 1.5 sys/crypto/nist_hash_drbg/files.nist_hash_drbg: revision 1.1 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.176 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes256.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_drbg_config.h: file removal sys/conf/files: revision 1.1238 sys/dev/rndpseudo.c: revision 1.38 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.c: file removal sys/sys/cprng.h: revision 1.13 - 1.15 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_aes_rijndael.h: file removal sys/crypto/nist_ctr_drbg/files.nist_ctr_drbg: file removal sys/kern/subr_cprng.c: revision 1.31 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes128.h: file removal cprng.h: use static __inline for consistency with other include headers and remove an unused function. - Switch from NIST CTR_DRBG with AES to NIST Hash_DRBG with SHA-256. Benefits: - larger seeds -- a 128-bit key alone is not enough for `128-bit security' - better resistance to timing side channels than AES - a better-understood security story (<a rel="nofollow" href="https://eprint.iacr.org/2018/349">https://eprint.iacr.org/2018/349</a>) - no loss in compliance with US government standards that nobody ever got fired for choosing, at least in the US-dominated western world - no dirty endianness tricks - self-tests Drawbacks: - performance hit: throughput is reduced to about 1/3 in naive measurements => possible to mitigate by using hardware SHA-256 instructions => all you really need is 32 bytes to seed a userland PRNG anyway => if we just used ChaCha this would go away...
1.148.2.1	03-Sep-2019	martin	Pull up following revision(s) (requested by riastradh in ticket #1705): sys/crypto/nist_hash_drbg/nist_hash_drbg.c: revision 1.1 sys/crypto/nist_hash_drbg/nist_hash_drbg.h: revision 1.1 sys/rump/kern/lib/libcrypto/Makefile: revision 1.5 sys/crypto/nist_hash_drbg/files.nist_hash_drbg: revision 1.1 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.176 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes256.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_drbg_config.h: file removal sys/conf/files: revision 1.1238 sys/dev/rndpseudo.c: revision 1.38 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.c: file removal sys/sys/cprng.h: revision 1.13 - 1.15 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_aes_rijndael.h: file removal sys/crypto/nist_ctr_drbg/files.nist_ctr_drbg: file removal sys/kern/subr_cprng.c: revision 1.31 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes128.h: file removal cprng.h: use static __inline for consistency with other include headers and remove an unused function. - Switch from NIST CTR_DRBG with AES to NIST Hash_DRBG with SHA-256. Benefits: - larger seeds -- a 128-bit key alone is not enough for `128-bit security' - better resistance to timing side channels than AES - a better-understood security story (<a rel="nofollow" href="https://eprint.iacr.org/2018/349">https://eprint.iacr.org/2018/349</a>) - no loss in compliance with US government standards that nobody ever got fired for choosing, at least in the US-dominated western world - no dirty endianness tricks - self-tests Drawbacks: - performance hit: throughput is reduced to about 1/3 in naive measurements => possible to mitigate by using hardware SHA-256 instructions => all you really need is 32 bytes to seed a userland PRNG anyway => if we just used ChaCha this would go away...
1.150.2.8	28-Aug-2017	skrll	Sync with HEAD
1.150.2.7	05-Oct-2016	skrll	Sync with HEAD
1.150.2.6	22-Apr-2016	skrll	Sync with HEAD
1.150.2.5	19-Mar-2016	skrll	Sync with HEAD
1.150.2.4	27-Dec-2015	skrll	Sync with HEAD (as of 26th Dec)
1.150.2.3	22-Sep-2015	skrll	Sync with HEAD
1.150.2.2	06-Jun-2015	skrll	Sync with HEAD
1.150.2.1	06-Apr-2015	skrll	Sync with HEAD
1.167.2.2	26-Apr-2017	pgoyette	Sync with HEAD
1.167.2.1	16-Jul-2016	pgoyette	Make sure we include the localcount routines in the rump libraries
1.168.2.1	21-Apr-2017	bouyer	Sync with HEAD
1.169.6.2	03-Sep-2019	martin	Pull up following revision(s) (requested by riastradh in ticket #1365): sys/crypto/nist_hash_drbg/nist_hash_drbg.c: revision 1.1 sys/crypto/nist_hash_drbg/nist_hash_drbg.h: revision 1.1 sys/rump/kern/lib/libcrypto/Makefile: revision 1.5 sys/crypto/nist_hash_drbg/files.nist_hash_drbg: revision 1.1 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.176 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes256.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_drbg_config.h: file removal sys/conf/files: revision 1.1238 sys/dev/rndpseudo.c: revision 1.38 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.c: file removal sys/sys/cprng.h: revision 1.13 - 1.15 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_aes_rijndael.h: file removal sys/crypto/nist_ctr_drbg/files.nist_ctr_drbg: file removal sys/kern/subr_cprng.c: revision 1.31 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes128.h: file removal cprng.h: use static __inline for consistency with other include headers and remove an unused function. - Switch from NIST CTR_DRBG with AES to NIST Hash_DRBG with SHA-256. Benefits: - larger seeds -- a 128-bit key alone is not enough for `128-bit security' - better resistance to timing side channels than AES - a better-understood security story (<a rel="nofollow" href="https://eprint.iacr.org/2018/349">https://eprint.iacr.org/2018/349</a>) - no loss in compliance with US government standards that nobody ever got fired for choosing, at least in the US-dominated western world - no dirty endianness tricks - self-tests Drawbacks: - performance hit: throughput is reduced to about 1/3 in naive measurements => possible to mitigate by using hardware SHA-256 instructions => all you really need is 32 bytes to seed a userland PRNG anyway => if we just used ChaCha this would go away...
1.169.6.1	21-Oct-2017	snj	Pull up following revision(s) (requested by ozaki-r in ticket #300): crypto/dist/ipsec-tools/src/setkey/parse.y: 1.19 crypto/dist/ipsec-tools/src/setkey/token.l: 1.20 distrib/sets/lists/tests/mi: 1.754, 1.757, 1.759 doc/TODO.smpnet: 1.12-1.13 sys/net/pfkeyv2.h: 1.32 sys/net/raw_cb.c: 1.23-1.24, 1.28 sys/net/raw_cb.h: 1.28 sys/net/raw_usrreq.c: 1.57-1.58 sys/net/rtsock.c: 1.228-1.229 sys/netinet/in_proto.c: 1.125 sys/netinet/ip_input.c: 1.359-1.361 sys/netinet/tcp_input.c: 1.359-1.360 sys/netinet/tcp_output.c: 1.197 sys/netinet/tcp_var.h: 1.178 sys/netinet6/icmp6.c: 1.213 sys/netinet6/in6_proto.c: 1.119 sys/netinet6/ip6_forward.c: 1.88 sys/netinet6/ip6_input.c: 1.181-1.182 sys/netinet6/ip6_output.c: 1.193 sys/netinet6/ip6protosw.h: 1.26 sys/netipsec/ipsec.c: 1.100-1.122 sys/netipsec/ipsec.h: 1.51-1.61 sys/netipsec/ipsec6.h: 1.18-1.20 sys/netipsec/ipsec_input.c: 1.44-1.51 sys/netipsec/ipsec_netbsd.c: 1.41-1.45 sys/netipsec/ipsec_output.c: 1.49-1.64 sys/netipsec/ipsec_private.h: 1.5 sys/netipsec/key.c: 1.164-1.234 sys/netipsec/key.h: 1.20-1.32 sys/netipsec/key_debug.c: 1.18-1.21 sys/netipsec/key_debug.h: 1.9 sys/netipsec/keydb.h: 1.16-1.20 sys/netipsec/keysock.c: 1.59-1.62 sys/netipsec/keysock.h: 1.10 sys/netipsec/xform.h: 1.9-1.12 sys/netipsec/xform_ah.c: 1.55-1.74 sys/netipsec/xform_esp.c: 1.56-1.72 sys/netipsec/xform_ipcomp.c: 1.39-1.53 sys/netipsec/xform_ipip.c: 1.50-1.54 sys/netipsec/xform_tcp.c: 1.12-1.16 sys/rump/librump/rumpkern/Makefile.rumpkern: 1.170 sys/rump/librump/rumpnet/net_stub.c: 1.27 sys/sys/protosw.h: 1.67-1.68 tests/net/carp/t_basic.sh: 1.7 tests/net/if_gif/t_gif.sh: 1.11 tests/net/if_l2tp/t_l2tp.sh: 1.3 tests/net/ipsec/Makefile: 1.7-1.9 tests/net/ipsec/algorithms.sh: 1.5 tests/net/ipsec/common.sh: 1.4-1.6 tests/net/ipsec/t_ipsec_ah_keys.sh: 1.2 tests/net/ipsec/t_ipsec_esp_keys.sh: 1.2 tests/net/ipsec/t_ipsec_gif.sh: 1.6-1.7 tests/net/ipsec/t_ipsec_l2tp.sh: 1.6-1.7 tests/net/ipsec/t_ipsec_misc.sh: 1.8-1.18 tests/net/ipsec/t_ipsec_sockopt.sh: 1.1-1.2 tests/net/ipsec/t_ipsec_tcp.sh: 1.1-1.2 tests/net/ipsec/t_ipsec_transport.sh: 1.5-1.6 tests/net/ipsec/t_ipsec_tunnel.sh: 1.9 tests/net/ipsec/t_ipsec_tunnel_ipcomp.sh: 1.1-1.2 tests/net/ipsec/t_ipsec_tunnel_odd.sh: 1.3 tests/net/mcast/t_mcast.sh: 1.6 tests/net/net/t_ipaddress.sh: 1.11 tests/net/net_common.sh: 1.20 tests/net/npf/t_npf.sh: 1.3 tests/net/route/t_flags.sh: 1.20 tests/net/route/t_flags6.sh: 1.16 usr.bin/netstat/fast_ipsec.c: 1.22 Do m_pullup before mtod It may fix panicks of some tests on anita/sparc and anita/GuruPlug. --- KNF --- Enable DEBUG for babylon5 --- Apply C99-style struct initialization to xformsw --- Tweak outputs of netstat -s for IPsec - Get rid of "Fast" - Use ipsec and ipsec6 for titles to clarify protocol - Indent outputs of sub protocols Original outputs were organized like this: (Fast) IPsec: IPsec ah: IPsec esp: IPsec ipip: IPsec ipcomp: (Fast) IPsec: IPsec ah: IPsec esp: IPsec ipip: IPsec ipcomp: New outputs are organized like this: ipsec: ah: esp: ipip: ipcomp: ipsec6: ah: esp: ipip: ipcomp: --- Add test cases for IPComp --- Simplify IPSEC_OSTAT macro (NFC) --- KNF; replace leading whitespaces with hard tabs --- Introduce and use SADB_SASTATE_USABLE_P --- KNF --- Add update command for testing Updating an SA (SADB_UPDATE) requires that a process issuing SADB_UPDATE is the same as a process issued SADB_ADD (or SADB_GETSPI). This means that update command must be used with add command in a configuration of setkey. This usage is normally meaningless but useful for testing (and debugging) purposes. --- Add test cases for updating SA/SP The tests require newly-added udpate command of setkey. --- PR/52346: Frank Kardel: Fix checksumming for NAT-T See XXX for improvements. --- Remove codes for PACKET_TAG_IPSEC_IN_CRYPTO_DONE It seems that PACKET_TAG_IPSEC_IN_CRYPTO_DONE is for network adapters that have IPsec accelerators; a driver sets the mtag to a packet when its device has already encrypted the packet. Unfortunately no driver implements such offload features for long years and seems unlikely to implement them soon. (Note that neither FreeBSD nor Linux doesn't have such drivers.) Let's remove related (unused) codes and simplify the IPsec code. --- Fix usages of sadb_msg_errno --- Avoid updating sav directly On SADB_UPDATE a target sav was updated directly, which was unsafe. Instead allocate another sav, copy variables of the old sav to the new one and replace the old one with the new one. --- Simplify; we can assume sav->tdb_xform cannot be NULL while it's valid --- Rename key_alloc* functions (NFC) We shouldn't use the term "alloc" for functions that just look up data and actually don't allocate memory. --- Use explicit_memset to surely zero-clear key_auth and key_enc --- Make sure to clear keys on error paths of key_setsaval --- Add missing KEY_FREESAV --- Make sure a sav is inserted to a sah list after its initialization completes --- Remove unnecessary zero-clearing codes from key_setsaval key_setsaval is now used only for a newly-allocated sav. (It was used to reset variables of an existing sav.) --- Correct wrong assumption of sav->refcnt in key_delsah A sav in a list is basically not to be sav->refcnt == 0. And also KEY_FREESAV assumes sav->refcnt > 0. --- Let key_getsavbyspi take a reference of a returning sav --- Use time_mono_to_wall (NFC) --- Separate sending message routine (NFC) --- Simplify; remove unnecessary zero-clears key_freesaval is used only when a target sav is being destroyed. --- Omit NULL checks for sav->lft_c sav->lft_c can be NULL only when initializing or destroying sav. --- Omit unnecessary NULL checks for sav->sah --- Omit unnecessary check of sav->state key_allocsa_policy picks a sav of either MATURE or DYING so we don't need to check its state again. --- Simplify; omit unnecessary saidx passing - ipsec_nextisr returns a saidx but no caller uses it - key_checkrequest is passed a saidx but it can be gotton by another argument (isr) --- Fix splx isn't called on some error paths --- Fix header size calculation of esp where sav is NULL --- Fix header size calculation of ah in the case sav is NULL This fix was also needed for esp. --- Pass sav directly to opencrypto callback In a callback, use a passed sav as-is by default and look up a sav only if the passed sav is dead. --- Avoid examining freshness of sav on packet processing If a sav list is sorted (by lft_c->sadb_lifetime_addtime) in advance, we don't need to examine each sav and also don't need to delete one on the fly and send up a message. Fortunately every sav lists are sorted as we need. Added key_validate_savlist validates that each sav list is surely sorted (run only if DEBUG because it's not cheap). --- Add test cases for SAs with different SPIs --- Prepare to stop using isr->sav isr is a shared resource and using isr->sav as a temporal storage for each packet processing is racy. And also having a reference from isr to sav makes the lifetime of sav non-deterministic; such a reference is removed when a packet is processed and isr->sav is overwritten by new one. Let's have a sav locally for each packet processing instead of using shared isr->sav. However this change doesn't stop using isr->sav yet because there are some users of isr->sav. isr->sav will be removed after the users find a way to not use isr->sav. --- Fix wrong argument handling --- fix printf format. --- Don't validate sav lists of LARVAL or DEAD states We don't sort the lists so the validation will always fail. Fix PR kern/52405 --- Make sure to sort the list when changing the state by key_sa_chgstate --- Rename key_allocsa_policy to key_lookup_sa_bysaidx --- Separate test files --- Calculate ah_max_authsize on initialization as well as esp_max_ivlen --- Remove m_tag_find(PACKET_TAG_IPSEC_PENDING_TDB) because nobody sets the tag --- Restore a comment removed in previous The comment is valid for the below code. --- Make tests more stable sleep command seems to wait longer than expected on anita so use polling to wait for a state change. --- Add tests that explicitly delete SAs instead of waiting for expirations --- Remove invalid M_AUTHIPDGM check on ESP isr->sav M_AUTHIPDGM flag is set to a mbuf in ah_input_cb. An sav of ESP can have AH authentication as sav->tdb_authalgxform. However, in that case esp_input and esp_input_cb are used to do ESP decryption and AH authentication and M_AUTHIPDGM never be set to a mbuf. So checking M_AUTHIPDGM of a mbuf on isr->sav of ESP is meaningless. --- Look up sav instead of relying on unstable sp->req->sav This code is executed only in an error path so an additional lookup doesn't matter. --- Correct a comment --- Don't release sav if calling crypto_dispatch again --- Remove extra KEY_FREESAV from ipsec_process_done It should be done by the caller. --- Don't bother the case of crp->crp_buf == NULL in callbacks --- Hold a reference to an SP during opencrypto processing An SP has a list of isr (ipsecrequest) that represents a sequence of IPsec encryption/authentication processing. One isr corresponds to one opencrypto processing. The lifetime of an isr follows its SP. We pass an isr to a callback function of opencrypto to continue to a next encryption/authentication processing. However nobody guaranteed that the isr wasn't freed, i.e., its SP wasn't destroyed. In order to avoid such unexpected destruction of isr, hold a reference to its SP during opencrypto processing. --- Don't make SAs expired on tests that delete SAs explicitly --- Fix a debug message --- Dedup error paths (NFC) --- Use pool to allocate tdb_crypto For ESP and AH, we need to allocate an extra variable space in addition to struct tdb_crypto. The fixed size of pool items may be larger than an actual requisite size of a buffer, but still the performance improvement by replacing malloc with pool wins. --- Don't use unstable isr->sav for header size calculations We may need to optimize to not look up sav here for users that don't need to know an exact size of headers (e.g., TCP segmemt size caclulation). --- Don't use sp->req->sav when handling NAT-T ESP fragmentation In order to do this we need to look up a sav however an additional look-up degrades performance. A sav is later looked up in ipsec4_process_packet so delay the fragmentation check until then to avoid an extra look-up. --- Don't use key_lookup_sp that depends on unstable sp->req->sav It provided a fast look-up of SP. We will provide an alternative method in the future (after basic MP-ification finishes). --- Stop setting isr->sav on looking up sav in key_checkrequest --- Remove ipsecrequest#sav --- Stop setting mtag of PACKET_TAG_IPSEC_IN_DONE because there is no users anymore --- Skip ipsec_spi___preferred_new_timeout when running on qemu Probably due to PR 43997 --- Add localcount to rump kernels --- Remove unused macro --- Fix key_getcomb_setlifetime The fix adjusts a soft limit to be 80% of a corresponding hard limit. I'm not sure the fix is really correct though, at least the original code is wrong. A passed comb is zero-cleared before calling key_getcomb_setlifetime, so comb->sadb_comb_soft_addtime = comb->sadb_comb_soft_addtime * 80 / 100; is meaningless. --- Provide and apply key_sp_refcnt (NFC) It simplifies further changes. --- Fix indentation Pointed out by knakahara@ --- Use pslist(9) for sptree --- Don't acquire global locks for IPsec if NET_MPSAFE Note that the change is just to make testing easy and IPsec isn't MP-safe yet. --- Let PF_KEY socks hold their own lock instead of softnet_lock Operations on SAD and SPD are executed via PF_KEY socks. The operations include deletions of SAs and SPs that will use synchronization mechanisms such as pserialize_perform to wait for references to SAs and SPs to be released. It is known that using such mechanisms with holding softnet_lock causes a dead lock. We should avoid the situation. --- Make IPsec SPD MP-safe We use localcount(9), not psref(9), to make the sptree and secpolicy (SP) entries MP-safe because SPs need to be referenced over opencrypto processing that executes a callback in a different context. SPs on sockets aren't managed by the sptree and can be destroyed in softint. localcount_drain cannot be used in softint so we delay the destruction of such SPs to a thread context. To do so, a list to manage such SPs is added (key_socksplist) and key_timehandler_spd deletes dead SPs in the list. For more details please read the locking notes in key.c. Proposed on tech-kern@ and tech-net@ --- Fix updating ipsec_used - key_update_used wasn't called in key_api_spddelete2 and key_api_spdflush - key_update_used wasn't called if an SP had been added/deleted but a reply to userland failed --- Fix updating ipsec_used; turn on when SPs on sockets are added --- Add missing IPsec policy checks to icmp6_rip6_input icmp6_rip6_input is quite similar to rip6_input and the same checks exist in rip6_input. --- Add test cases for setsockopt(IP_IPSEC_POLICY) --- Don't use KEY_NEWSP for dummy SP entries By the change KEY_NEWSP is now not called from softint anymore and we can use kmem_zalloc with KM_SLEEP for KEY_NEWSP. --- Comment out unused functions --- Add test cases that there are SPs but no relevant SAs --- Don't allow sav->lft_c to be NULL lft_c of an sav that was created by SADB_GETSPI could be NULL. --- Clean up clunky eval strings - Remove unnecessary \ at EOL - This allows to omit ; too - Remove unnecessary quotes for arguments of atf_set - Don't expand $DEBUG in eval - We expect it's expanded on execution Suggested by kre@ --- Remove unnecessary KEY_FREESAV in an error path sav should be freed (unreferenced) by the caller. --- Use pslist(9) for sahtree --- Use pslist(9) for sah->savtree --- Rename local variable newsah to sah It may not be new. --- MP-ify SAD slightly - Introduce key_sa_mtx and use it for some list operations - Use pserialize for some list iterations --- Introduce KEY_SA_UNREF and replace KEY_FREESAV with it where sav will never be actually freed in the future KEY_SA_UNREF is still key_freesav so no functional change for now. This change reduces diff of further changes. --- Remove out-of-date log output Pointed out by riastradh@ --- Use KDASSERT instead of KASSERT for mutex_ownable Because mutex_ownable is too heavy to run in a fast path even for DIAGNOSTIC + LOCKDEBUG. Suggested by riastradh@ --- Assemble global lists and related locks into cache lines (NFCI) Also rename variable names from tree to list because they are just lists, not trees. Suggested by riastradh@ --- Move locking notes --- Update the locking notes - Add locking order - Add locking notes for misc lists such as reglist - Mention pserialize, key_sp_ref and key_sp_unref on SP operations Requested by riastradh@ --- Describe constraints of key_sp_ref and key_sp_unref Requested by riastradh@ --- Hold key_sad.lock on SAVLIST_WRITER_INSERT_TAIL --- Add __read_mostly to key_psz Suggested by riastradh@ --- Tweak wording (pserialize critical section => pserialize read section) Suggested by riastradh@ --- Add missing mutex_exit --- Fix setkey -D -P outputs The outputs were tweaked (by me), but I forgot updating libipsec in my local ATF environment... --- MP-ify SAD (key_sad.sahlist and sah entries) localcount(9) is used to protect key_sad.sahlist and sah entries as well as SPD (and will be used for SAD sav). Please read the locking notes of SAD for more details. --- Introduce key_sa_refcnt and replace sav->refcnt with it (NFC) --- Destroy sav only in the loop for DEAD sav --- Fix KASSERT(solocked(sb->sb_so)) failure in sbappendaddr that is called eventually from key_sendup_mbuf If key_sendup_mbuf isn't passed a socket, the assertion fails. Originally in this case sb->sb_so was softnet_lock and callers held softnet_lock so the assertion was magically satisfied. Now sb->sb_so is key_so_mtx and also softnet_lock isn't always held by callers so the assertion can fail. Fix it by holding key_so_mtx if key_sendup_mbuf isn't passed a socket. Reported by knakahara@ Tested by knakahara@ and ozaki-r@ --- Fix locking notes of SAD --- Fix deadlock between key_sendup_mbuf called from key_acquire and localcount_drain If we call key_sendup_mbuf from key_acquire that is called on packet processing, a deadlock can happen like this: - At key_acquire, a reference to an SP (and an SA) is held - key_sendup_mbuf will try to take key_so_mtx - Some other thread may try to localcount_drain to the SP with holding key_so_mtx in say key_api_spdflush - In this case localcount_drain never return because key_sendup_mbuf that has stuck on key_so_mtx never release a reference to the SP Fix the deadlock by deferring key_sendup_mbuf to the timer (key_timehandler). --- Fix that prev isn't cleared on retry --- Limit the number of mbufs queued for deferred key_sendup_mbuf It's easy to be queued hundreds of mbufs on the list under heavy network load. --- MP-ify SAD (savlist) localcount(9) is used to protect savlist of sah. The basic design is similar to MP-ifications of SPD and SAD sahlist. Please read the locking notes of SAD for more details. --- Simplify ipsec_reinject_ipstack (NFC) --- Add per-CPU rtcache to ipsec_reinject_ipstack It reduces route lookups and also reduces rtcache lock contentions when NET_MPSAFE is enabled. --- Use pool_cache(9) instead of pool(9) for tdb_crypto objects The change improves network throughput especially on multi-core systems. --- Update ipsec(4), opencrypto(9) and vlan(4) are now MP-safe. --- Write known issues on scalability --- Share a global dummy SP between PCBs It's never be changed so it can be pre-allocated and shared safely between PCBs. --- Fix race condition on the rawcb list shared by rtsock and keysock keysock now protects itself by its own mutex, which means that the rawcb list is protected by two different mutexes (keysock's one and softnet_lock for rtsock), of course it's useless. Fix the situation by having a discrete rawcb list for each. --- Use a dedicated mutex for rt_rawcb instead of softnet_lock if NET_MPSAFE --- fix localcount leak in sav. fixed by ozaki-r@n.o. I commit on behalf of him. --- remove unnecessary comment. --- Fix deadlock between pserialize_perform and localcount_drain A typical ussage of localcount_drain looks like this: mutex_enter(&mtx); item = remove_from_list(); pserialize_perform(psz); localcount_drain(&item->localcount, &cv, &mtx); mutex_exit(&mtx); This sequence can cause a deadlock which happens for example on the following situation: - Thread A calls localcount_drain which calls xc_broadcast after releasing a specified mutex - Thread B enters the sequence and calls pserialize_perform with holding the mutex while pserialize_perform also calls xc_broadcast - Thread C (xc_thread) that calls an xcall callback of localcount_drain tries to hold the mutex xc_broadcast of thread B doesn't start until xc_broadcast of thread A finishes, which is a feature of xcall(9). This means that pserialize_perform never complete until xc_broadcast of thread A finishes. On the other hand, thread C that is a callee of xc_broadcast of thread A sticks on the mutex. Finally the threads block each other (A blocks B, B blocks C and C blocks A). A possible fix is to serialize executions of the above sequence by another mutex, but adding another mutex makes the code complex, so fix the deadlock by another way; the fix is to release the mutex before pserialize_perform and instead use a condvar to prevent pserialize_perform from being called simultaneously. Note that the deadlock has happened only if NET_MPSAFE is enabled. --- Add missing ifdef NET_MPSAFE --- Take softnet_lock on pr_input properly if NET_MPSAFE Currently softnet_lock is taken unnecessarily in some cases, e.g., icmp_input and encap4_input from ip_input, or not taken even if needed, e.g., udp_input and tcp_input from ipsec4_common_input_cb. Fix them. NFC if NET_MPSAFE is disabled (default). --- - sanitize key debugging so that we don't print extra newlines or unassociated debugging messages. - remove unused functions and make internal ones static - print information in one line per message --- humanize printing of ip addresses --- cast reduction, NFC. --- Fix typo in comment --- Pull out ipsec_fill_saidx_bymbuf (NFC) --- Don't abuse key_checkrequest just for looking up sav It does more than expected for example key_acquire. --- Fix SP is broken on transport mode isr->saidx was modified accidentally in ipsec_nextisr. Reported by christos@ Helped investigations by christos@ and knakahara@ --- Constify isr at many places (NFC) --- Include socketvar.h for softnet_lock --- Fix buffer length for ipsec_logsastr
1.169.4.1	27-Apr-2017	pgoyette	Restore all work from the former pgoyette-localcount branch (which is now abandoned doe to cvs merge botch). The branch now builds, and installs via anita. There are still some problems (cgd is non-functional and all atf tests time-out) but they will get resolved soon.
1.170.4.3	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.170.4.2	08-Apr-2020	martin	Merge changes from current as of 20200406
1.170.4.1	10-Jun-2019	christos	Sync with HEAD
1.170.2.3	26-Dec-2018	pgoyette	Sync with HEAD, resolve a few conflicts
1.170.2.2	30-Sep-2018	pgoyette	Ssync with HEAD
1.170.2.1	20-Mar-2018	pgoyette	Initial implementation of sys/kern/kern_stup.c as discussed on tech-kern For now, we only handle the dev/ccd and NTP needs; more to follow.
1.175.2.1	03-Sep-2019	martin	Pull up following revision(s) (requested by riastradh in ticket #173): sys/crypto/nist_hash_drbg/nist_hash_drbg.c: revision 1.1 sys/crypto/nist_hash_drbg/nist_hash_drbg.h: revision 1.1 sys/rump/kern/lib/libcrypto/Makefile: revision 1.5 sys/crypto/nist_hash_drbg/files.nist_hash_drbg: revision 1.1 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.176 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes256.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_drbg_config.h: file removal sys/conf/files: revision 1.1238 sys/dev/rndpseudo.c: revision 1.38 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.c: file removal sys/sys/cprng.h: revision 1.15 sys/crypto/nist_ctr_drbg/nist_ctr_drbg.h: file removal sys/crypto/nist_ctr_drbg/nist_ctr_aes_rijndael.h: file removal sys/crypto/nist_ctr_drbg/files.nist_ctr_drbg: file removal sys/kern/subr_cprng.c: revision 1.31 sys/crypto/nist_ctr_drbg/nist_ctr_drbg_aes128.h: file removal Switch from NIST CTR_DRBG with AES to NIST Hash_DRBG with SHA-256. Benefits: - larger seeds -- a 128-bit key alone is not enough for `128-bit security' - better resistance to timing side channels than AES - a better-understood security story (<a rel="nofollow" href="https://eprint.iacr.org/2018/349">https://eprint.iacr.org/2018/349</a>) - no loss in compliance with US government standards that nobody ever got fired for choosing, at least in the US-dominated western world - no dirty endianness tricks - self-tests Drawbacks: - performance hit: throughput is reduced to about 1/3 in naive measurements => possible to mitigate by using hardware SHA-256 instructions => all you really need is 32 bytes to seed a userland PRNG anyway => if we just used ChaCha this would go away... XXX pullup-7 XXX pullup-8 XXX pullup-9
1.181.2.1	17-Jan-2020	ad	Sync with head.
1.191.6.1	02-Aug-2025	perseant	Sync with HEAD
1.3	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.2	03-Apr-2015	pooka	Use vmspace of calling [rump kernel] process instead of sysspace.
1.1	25-Apr-2014	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.10; 1.1.12; gardenize rump.c: move data structure helper routines to accessors.c
1.1.12.2	19-Mar-2016	skrll	Sync with HEAD
1.1.12.1	06-Apr-2015	skrll	Sync with HEAD
1.1.10.3	03-Dec-2017	jdolecek	update from HEAD
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	25-Apr-2014	tls	file accessors.c was added on branch tls-maxphys on 2014-08-20 00:04:40 +0000
1.1.6.2	10-Aug-2014	tls	Rebase.
1.1.6.1	25-Apr-2014	tls	file accessors.c was added on branch tls-earlyentropy on 2014-08-10 06:56:51 +0000
1.1.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.4.1	25-Apr-2014	yamt	file accessors.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.2.2	18-May-2014	rmind	sync with head
1.1.2.1	25-Apr-2014	rmind	file accessors.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.6	09-Oct-2008	pooka	No point in having our private atomic ops, just use the ones now available in libc.
1.5	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.4	02-Jul-2008	he	branches: 1.4.2; Don't rely on <sys/mutex.h> being implicitly included, because on some ports (mvme68k for example) that's not happening.
1.3	28-Apr-2008	martin	branches: 1.3.2; 1.3.4; Remove clause 3 and 4 from TNF licenses
1.2	30-Dec-2007	pooka	branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8; 1.2.14; 1.2.16; 1.2.18; pull in atomic ops from vmlocking2
1.1	28-Dec-2007	ad	branches: 1.1.2; file atomic.c was initially added on branch vmlocking2.
1.1.2.1	28-Dec-2007	ad	Make rump build.
1.2.18.2	04-May-2009	yamt	sync with head.
1.2.18.1	16-May-2008	yamt	sync with head.
1.2.16.1	18-May-2008	yamt	sync with head.
1.2.14.3	17-Jan-2009	mjf	Sync with HEAD.
1.2.14.2	28-Sep-2008	mjf	Sync with HEAD.
1.2.14.1	02-Jun-2008	mjf	Sync with HEAD.
1.2.8.2	18-Feb-2008	mjf	Sync with HEAD.
1.2.8.1	30-Dec-2007	mjf	file atomic.c was added on branch mjf-devfs on 2008-02-18 21:07:22 +0000
1.2.6.2	21-Jan-2008	yamt	sync with head
1.2.6.1	30-Dec-2007	yamt	file atomic.c was added on branch yamt-lazymbuf on 2008-01-21 09:47:41 +0000
1.2.4.2	09-Jan-2008	matt	sync with HEAD
1.2.4.1	30-Dec-2007	matt	file atomic.c was added on branch matt-armv6 on 2008-01-09 01:57:59 +0000
1.2.2.2	02-Jan-2008	bouyer	Sync with HEAD
1.2.2.1	30-Dec-2007	bouyer	file atomic.c was added on branch bouyer-xeni386 on 2008-01-02 21:57:51 +0000
1.3.4.2	31-Jul-2008	simonb	Sync with head.
1.3.4.1	03-Jul-2008	simonb	Sync with head.
1.3.2.2	10-Oct-2008	skrll	Sync with HEAD.
1.3.2.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.4.2.1	19-Oct-2008	haad	Sync with HEAD.
1.3	14-Mar-2021	christos	provide generic cas for _LP64
1.2	18-Dec-2009	pooka	branches: 1.2.76; I got a report about this not compiling on mips64. While I could not repeat the problem and while this should not be used at all on mips64, the real fix is a little diablo in the details. So hack around it for now (yes, it results in only half of the locks being used on 64bit platforms. no biggie for a hack).
1.1	12-Jan-2009	pooka	branches: 1.1.2; 1.1.4; 1.1.8; * Add adapted version of the userspace atomic_cas ops for platforms lacking special instructions. We always use the spinlocked version (could use RAS on UP NetBSD host, but it's not portable). * Add platform-based symbol quirk tables for selectively not renaming toolchain symbols for some platforms. Although, this should really depend on the (toolchain,platform)-tuple and not just the platform. This allows arm, hppa, mips and sh3 to build succesfully with an isolated rump kernel namespace. ... now, one arch remains: vax. you must compile vax. then, only then will you MI be.
1.1.8.3	11-Mar-2010	yamt	sync with head
1.1.8.2	04-May-2009	yamt	sync with head.
1.1.8.1	12-Jan-2009	yamt	file atomic_cas_generic.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:29 +0000
1.1.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.1.4.1	12-Jan-2009	skrll	file atomic_cas_generic.c was added on branch nick-hppapmap on 2009-01-19 13:20:25 +0000
1.1.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.1.2.1	12-Jan-2009	mjf	file atomic_cas_generic.c was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.2.76.1	03-Apr-2021	thorpej	Sync with HEAD.
1.2	22-Nov-2010	pooka	rename atomic_cas_up to rump_atomic_cas_up to avoid collisions
1.1	21-Nov-2010	pooka	Add a lockless uniprocessor version of atomic_cas_generic.c, which is currently used by all the archs that previously used cas_generic.
1.11	30-Sep-2008	pooka	Switch to std kern_auth.
1.10	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.9	01-Jul-2008	pooka	branches: 1.9.2; Fixes to build rump utilities as host binaries on Linux by removing sys namespace pollution which has crept in. Submitted in private mail by takemura, domain ca2.so-net.ne.jp
1.8	23-Jun-2008	pooka	Allow KAUTH_SYSTEM_MKNOD in kauth_authorize_generic() to make it possible to execute sys_mknod(). from Arnaud Ysmal
1.7	11-Mar-2008	pooka	branches: 1.7.4; 1.7.6; 1.7.8; Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.6	24-Jan-2008	pooka	branches: 1.6.2; 1.6.6; Use namei() etc. from kernel sources instead of a reimplementation. To accommodate, give the rootvnode its own vnode op vector with a simple lookup operation. This is used for looking up the file system's device vnode instead of doing that directly in a homesmoked namei().
1.5	03-Jan-2008	pooka	Theoretically this is supposed to be interchangeable with real kernel code. Use kmem_alloc/free instead of some wily homerolled rump interfaces for memory allocation.
1.4	02-Jan-2008	pooka	Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.3	08-Dec-2007	pooka	branches: 1.3.4; Remove cn_lwp from struct componentname. curlwp should be used from on. The NDINIT() macro no longer takes the lwp parameter and associates the credentials of the calling thread with the namei structure.
1.2	25-Aug-2007	pooka	branches: 1.2.2; 1.2.4; 1.2.6; 1.2.10; 1.2.14; 1.2.16; 1.2.18; Don't play rename & typecast games with kauth_cred_t, but rather declare the type in rump.h only if necessary with the help of ifdef magic.
1.1	21-Aug-2007	pooka	Implement credentials. Access control is now similar to if the file system were run in the kernel.
1.2.18.1	26-Dec-2007	ad	Sync with head.
1.2.16.1	18-Feb-2008	mjf	Sync with HEAD.
1.2.14.3	09-Dec-2007	jmcneill	Sync with HEAD.
1.2.14.2	02-Nov-2007	joerg	Reduce diff to HEAD by adding files forgotten in early merges.
1.2.14.1	25-Aug-2007	joerg	file auth.c was added on branch jmcneill-pm on 2007-11-02 12:43:50 +0000
1.2.10.2	09-Oct-2007	ad	Sync with head.
1.2.10.1	25-Aug-2007	ad	file auth.c was added on branch vmlocking on 2007-10-09 13:45:03 +0000
1.2.6.5	17-Mar-2008	yamt	sync with head.
1.2.6.4	04-Feb-2008	yamt	sync with head.
1.2.6.3	21-Jan-2008	yamt	sync with head
1.2.6.2	03-Sep-2007	yamt	sync with head.
1.2.6.1	25-Aug-2007	yamt	file auth.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:25 +0000
1.2.4.2	03-Sep-2007	skrll	Sync with HEAD.
1.2.4.1	25-Aug-2007	skrll	file auth.c was added on branch nick-csl-alignment on 2007-09-03 10:23:54 +0000
1.2.2.2	23-Mar-2008	matt	sync with HEAD
1.2.2.1	09-Jan-2008	matt	sync with HEAD
1.3.4.2	08-Jan-2008	bouyer	Sync with HEAD
1.3.4.1	02-Jan-2008	bouyer	Sync with HEAD
1.6.6.5	05-Oct-2008	mjf	Sync with HEAD.
1.6.6.4	28-Sep-2008	mjf	Sync with HEAD.
1.6.6.3	02-Jul-2008	mjf	Sync with HEAD.
1.6.6.2	29-Jun-2008	mjf	Sync with HEAD.
1.6.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.6.2.1	24-Mar-2008	keiichi	sync with head.
1.7.8.3	31-Jul-2008	simonb	Sync with head.
1.7.8.2	03-Jul-2008	simonb	Sync with head.
1.7.8.1	27-Jun-2008	simonb	Sync with head.
1.7.6.2	10-Oct-2008	skrll	Sync with HEAD.
1.7.6.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.7.4.1	04-May-2009	yamt	sync with head.
1.9.2.1	19-Oct-2008	haad	Sync with HEAD.
1.4	14-Aug-2007	pooka	Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.3	09-Aug-2007	pooka	fool some KASSERTs
1.2	09-Aug-2007	pooka	Add some stubs for lfs.
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file buffercache.c was added on branch matt-mips64 on 2007-08-05 22:28:08 +0000
1.3	17-Jan-2011	pooka	use compat code from sys/compat/common
1.2	26-Jul-2010	pooka	branches: 1.2.2; 1.2.4; 1.2.6; Add select to list on compat syscalls. Makes some code work for me with a nb5 userland without having to compile with -g ;)
1.1	19-Jul-2010	pooka	* move stat syscalls to newstyle compat * implement compat for pollts
1.2.6.1	06-Jun-2011	jruoho	Sync with HEAD.
1.2.4.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.2.4.1	26-Jul-2010	uebayasi	file compat.c was added on branch uebayasi-xip on 2010-08-17 06:48:00 +0000
1.2.2.2	11-Aug-2010	yamt	sync with head.
1.2.2.1	26-Jul-2010	yamt	file compat.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:06 +0000
1.9	02-Jan-2020	thorpej	- Eliminate the global "boottime" variable, which was being accessed without any synchronization against changes by e.g. clock_settime(). - Replace with new getbinboottime() / getnanoboottime() / getmicroboottime() functions (naming mirrors that of other time access functions in kern_tc.c). It returns the (maybe-converted) value of timebasebin, which also tracks our estimate of when the system was booted (i.e. the legacy "boottime" was redundant). XXX There needs to be a lockless synchronization mechanism for reading timebasebin, but this is a problem in kern_tc.c that pre-existed these "boottime" changes. At least now the problem is centralized in one location.
1.8	03-Sep-2018	riastradh	Rename min/max -> uimin/uimax for better honesty. These functions are defined on unsigned int. The generic name min/max should not silently truncate to 32 bits on 64-bit systems. This is purely a name change -- no functional change intended. HOWEVER! Some subsystems have #define min(a, b) ((a) < (b) ? (a) : (b)) #define max(a, b) ((a) > (b) ? (a) : (b)) even though our standard name for that is MIN/MAX. Although these may invite multiple evaluation bugs, these do _not_ cause integer truncation. To avoid `fixing' these cases, I first changed the name in libkern, and then compile-tested every file where min/max occurred in order to confirm that it failed -- and thus confirm that nothing shadowed min/max -- before changing it. I have left a handful of bootloaders that are too annoying to compile-test, and some dead code: cobalt ews4800mips hp300 hppa ia64 luna68k vax acorn32/if_ie.c (not included in any kernels) macppc/if_gm.c (superseded by gem(4)) It should be easy to fix the fallout once identified -- this way of doing things fails safe, and the goal here, after all, is to _avoid_ silent integer truncations, not introduce them. Maybe one day we can reintroduce min/max as type-generic things that never silently truncate. But we should avoid doing that for a while, so that existing code has a chance to be detected by the compiler for conversion to uimin/uimax without changing the semantics until we can properly audit it all. (Who knows, maybe in some cases integer truncation is actually intended!)
1.7	30-Nov-2017	christos	branches: 1.7.2; 1.7.4; add fo_name so we can identify the fileops in a simple way.
1.6	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.5	26-May-2015	pooka	Implement fo_poll so that rump_sys_poll(stdout) works more or less as expected. from Martin Lucina <martin@lucina.net> via rumpkernel-users
1.4	25-Aug-2014	pooka	branches: 1.4.2; No longer create a special process context to fork remote clients off of, simply always rfork off of proc1 closing all descriptors, and have the rump kernel open 0/1/2 if the parent process is "1". Fixes tests/rump/rumpkernel/t_sp, which was failing since the abovementioned special process change due to attempting to deliver a signal to the special process and the special process was not equipped to handle one.
1.3	08-Sep-2013	pooka	branches: 1.3.4; 1.3.6; 1.3.8; 1.3.10; Fool isatty() into thinking we're a tty.
1.2	07-Sep-2013	pooka	fix -Wuninitialized
1.1	07-Sep-2013	pooka	Add an initial console device and open fd's 0/1/2 for initproc. This is again useful in standalone-type environments such as Xen, where all printf/etc calls go through the rump kernel.
1.3.10.3	03-Dec-2017	jdolecek	update from HEAD
1.3.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.3.10.1	08-Sep-2013	tls	file cons.c was added on branch tls-maxphys on 2014-08-20 00:04:40 +0000
1.3.8.1	09-Dec-2014	martin	Pull up following revision(s) (requested by gson in ticket #299): sys/rump/librump/rumpkern/cons.c: revision 1.4 sys/rump/librump/rumpkern/rump.c: revision 1.311 lib/librumpuser/rumpuser_sp.c: revision 1.67 No longer create a special process context to fork remote clients off of, simply always rfork off of proc1 closing all descriptors, and have the rump kernel open 0/1/2 if the parent process is "1". Fixes tests/rump/rumpkernel/t_sp, which was failing since the abovementioned special process change due to attempting to deliver a signal to the special process and the special process was not equipped to handle one.
1.3.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.3.6.1	08-Sep-2013	yamt	file cons.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.3.4.2	18-May-2014	rmind	sync with head
1.3.4.1	08-Sep-2013	rmind	file cons.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.4.2.2	19-Mar-2016	skrll	Sync with HEAD
1.4.2.1	06-Jun-2015	skrll	Sync with HEAD
1.7.4.2	08-Apr-2020	martin	Merge changes from current as of 20200406
1.7.4.1	10-Jun-2019	christos	Sync with HEAD
1.7.2.1	06-Sep-2018	pgoyette	Sync with HEAD Resolve a couple of conflicts (result of the uimin/uimax changes)
1.9	17-Jan-2014	pooka	Use subr_cprng.c instead of stub implementation. Rijndael migrates from rumpkern_crypto to rumpkern due to it being mandatory for cprng.
1.8	01-Jul-2013	riastradh	Remove now-needless rump cprng_strong_deplete stub. These rump stubs need to go away at some point...
1.7	23-Jun-2013	riastradh	branches: 1.7.2; Rework rndsink(9) abstraction and adapt arc4random(9) and cprng(9). rndsink(9): - Simplify API. - Simplify locking scheme. - Add a man page. - Avoid races in destruction. - Avoid races in requesting entropy now and scheduling entropy later. Periodic distribution of entropy to sinks reduces the need for the last one, but this way we don't need to rely on periodic distribution (e.g., in a future tickless NetBSD). rndsinks_lock should probably eventually merge with the rndpool lock, but we'll put that off for now. cprng(9): - Make struct cprng_strong opaque. - Move rndpseudo.c parts that futz with cprng guts to subr_cprng.c. - Fix kevent locking. (Is kevent locking documented anywhere?) - Stub out rump cprng further until we can rumpify rndsink instead. - Strip code to grovel through struct cprng_strong in fstat.
1.6	30-Apr-2013	pooka	Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.5	27-Apr-2013	pooka	make the random hypercall more generic
1.4	17-Dec-2011	tls	branches: 1.4.4; 1.4.8; Separate /dev/random pseudodevice implemenation from kernel entropy pool implementation. Rewrite pseudodevice code to use cprng_strong(9). The new pseudodevice is cloning, so each caller gets bits from a stream generated with its own key. Users of /dev/urandom get their generators keyed on a "best effort" basis -- the kernel will rekey generators whenever the entropy pool hits the high water mark -- while users of /dev/random get their generators rekeyed every time key-length bits are output. The underlying cprng_strong API can use AES-256 or AES-128, but we use AES-128 because of concerns about related-key attacks on AES-256. This improves performance (and reduces entropy pool depletion) significantly for users of /dev/urandom but does cause users of /dev/random to rekey twice as often. Also fixes various bugs (including some missing locking and a reseed-counter overflow in the CTR_DRBG code) found while testing this. For long reads, this generator is approximately 20 times as fast as the old generator (dd with bs=64K yields 53MB/sec on 2Ghz Core2 instead of 2.5MB/sec) and also uses a separate mutex per instance so concurrency is greatly improved. For reads of typical key sizes for modern cryptosystems (16-32 bytes) performance is about the same as the old code: a little better for 32 bytes, a little worse for 16 bytes.
1.3	28-Nov-2011	tls	branches: 1.3.2; Remove arc4random() and arc4randbytes() from the kernel API. Replace arc4random() hacks in rump with stubs that call the host arc4random() to get numbers that are hopefully actually random (arc4random() keyed with stack junk is not). This should fix some of the currently failing anita tests -- we should no longer generate duplicate "random" MAC addresses in the test environment.
1.2	21-Nov-2011	tsutsui	No need to include MD <machine/cpu_counter.h> here.
1.1	19-Nov-2011	tls	First step of random number subsystem rework described in <20111022023242.BA26F14A158@mail.netbsd.org>. This change includes the following: An initial cleanup and minor reorganization of the entropy pool code in sys/dev/rnd.c and sys/dev/rndpool.c. Several bugs are fixed. Some effort is made to accumulate entropy more quickly at boot time. A generic interface, "rndsink", is added, for stream generators to request that they be re-keyed with good quality entropy from the pool as soon as it is available. The arc4random()/arc4randbytes() implementation in libkern is adjusted to use the rndsink interface for rekeying, which helps address the problem of low-quality keys at boot time. An implementation of the FIPS 140-2 statistical tests for random number generator quality is provided (libkern/rngtest.c). This is based on Greg Rose's implementation from Qualcomm. A new random stream generator, nist_ctr_drbg, is provided. It is based on an implementation of the NIST SP800-90 CTR_DRBG by Henric Jungheim. This generator users AES in a modified counter mode to generate a backtracking-resistant random stream. An abstraction layer, "cprng", is provided for in-kernel consumers of randomness. The arc4random/arc4randbytes API is deprecated for in-kernel use. It is replaced by "cprng_strong". The current cprng_fast implementation wraps the existing arc4random implementation. The current cprng_strong implementation wraps the new CTR_DRBG implementation. Both interfaces are rekeyed from the entropy pool automatically at intervals justifiable from best current cryptographic practice. In some quick tests, cprng_fast() is about the same speed as the old arc4randbytes(), and cprng_strong() is about 20% faster than rnd_extract_data(). Performance is expected to improve. The AES code in src/crypto/rijndael is no longer an optional kernel component, as it is required by cprng_strong, which is not an optional kernel component. The entropy pool output is subjected to the rngtest tests at startup time; if it fails, the system will reboot. There is approximately a 3/10000 chance of a false positive from these tests. Entropy pool _input_ from hardware random numbers is subjected to the rngtest tests at attach time, as well as the FIPS continuous-output test, to detect bad or stuck hardware RNGs; if any are detected, they are detached, but the system continues to run. A problem with rndctl(8) is fixed -- datastructures with pointers in arrays are no longer passed to userspace (this was not a security problem, but rather a major issue for compat32). A new kernel will require a new rndctl. The sysctl kern.arandom() and kern.urandom() nodes are hooked up to the new generators, but the /dev/*random pseudodevices are not, yet. Manual pages for the new kernel interfaces are forthcoming.
1.3.2.1	18-Feb-2012	mrg	merge to -current.
1.4.8.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.4.8.1	23-Jun-2013	tls	resync from head
1.4.4.3	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.4.4.2	17-Apr-2012	yamt	sync with head
1.4.4.1	17-Dec-2011	yamt	file cprng_stub.c was added on branch yamt-pagecache on 2012-04-17 00:08:49 +0000
1.7.2.2	18-May-2014	rmind	sync with head
1.7.2.1	28-Aug-2013	rmind	sync with head
1.11	29-Jun-2021	nia	Remove uscanner(4) driver This exists for compatibility with a Linux interface which was apparently deprecated in Linux 2.6. There are various mailing list threads going back to 2004 where the usefulness of this driver is discussed, but the conclusion is that scanner software has all moved to using ugen(4) instead, and enabling this driver will not help you scan things.
1.10	27-Jan-2019	maxv	branches: 1.10.16; Remove the satlink driver. It was disabled everywhere, had no man page and no use either. Spotted by thorpej in PR/21345, ok christos.
1.9	19-Dec-2018	maxv	Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently, but also as discussed several times in the past.
1.8	14-Jan-2017	pgoyette	branches: 1.8.14; 1.8.16; Don't call the drvctl module's initialization code during rump component initialization. Instead, temporarily attach the drvctl's cdevsw to determine its device c-major, create the /dev/drvctl node using that c-major, and then detach. This leaves things in a state where normal module initialization can run. Since we're now creating the /dev/drvctl device node correctly, we don't need to create it again. So mark the device as DEVNODE_DONTBOTHER in the devsw_conv0 conversion table. This bug was introduced more than a year ago (src/sys/kern/kern_drvctl.c rev 1.40), but was silently ignored except when running a rump_server built with LOCKDEBUG.
1.7	25-Feb-2011	pooka	branches: 1.7.14; 1.7.32; 1.7.36; Don't autogenerate a large number of unnecessary device nodes, just slows bootstrap.
1.6	10-Feb-2011	pooka	support /dev/zero
1.5	22-Nov-2010	pooka	branches: 1.5.2; 1.5.4; "regen": /dev/md*
1.4	07-Jul-2010	pooka	branches: 1.4.2; 1.4.4; Borrow /dev/mem major from i386 for /dev/null and autogenerate node.
1.3	07-Jul-2010	pooka	add /dev/putter to "devfs" (forgot to commit this earlier)
1.2	21-Jun-2010	pooka	regen for vnd (or at least something like that since this file still isn't really generated, just copypasted)
1.1	30-Apr-2010	pooka	branches: 1.1.2; Include devsw_conv0 from an i386 kernel compilation (no, we don't care about the arch as long as all the devices we care about are present). The file should be autogenerated, but that requires some more changes to config(1).
1.1.2.4	05-Mar-2011	rmind	sync with head
1.1.2.3	03-Jul-2010	rmind	sync with head
1.1.2.2	30-May-2010	rmind	sync with head
1.1.2.1	30-Apr-2010	rmind	file devsw.c was added on branch rmind-uvmplock on 2010-05-30 05:18:06 +0000
1.4.4.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.4.4.1	07-Jul-2010	uebayasi	file devsw.c was added on branch uebayasi-xip on 2010-08-17 06:48:00 +0000
1.4.2.2	11-Aug-2010	yamt	sync with head.
1.4.2.1	07-Jul-2010	yamt	file devsw.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:06 +0000
1.5.4.2	05-Mar-2011	bouyer	Sync with HEAD
1.5.4.1	17-Feb-2011	bouyer	Sync with HEAD
1.5.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.7.36.1	20-Mar-2017	pgoyette	Sync with HEAD
1.7.32.1	05-Feb-2017	skrll	Sync with HEAD
1.7.14.1	03-Dec-2017	jdolecek	update from HEAD
1.8.16.1	10-Jun-2019	christos	Sync with HEAD
1.8.14.1	26-Dec-2018	pgoyette	Sync with HEAD, resolve a few conflicts
1.10.16.1	01-Aug-2021	thorpej	Sync with HEAD.
1.202	28-Jul-2024	bad	initialize {sys,max}_{cb}devsws next to what they refer to e.g. {sys,max}_cdevsws next to the definition of cdevsw.
1.201	15-Oct-2023	riastradh	branches: 1.201.6; rump: Sprinkle sys/syncobj.h here too.
1.200	28-Sep-2023	manu	Fix root search in RAID 1 sets We use the wedge information given by bootstrap, where the kernel was found. This requires src/sys/arch/i386/stand/i386/lib/biosdisk.c 1.59 to work in all cases.
1.199	22-Apr-2023	riastradh	rumpkern: Provide stub pnbuf_cache weak alias. Needed only by sys_module.c handle_modctl_load, which won't work if there's no rumpvfs linked in anyway.
1.198	22-Apr-2023	riastradh	rumpkern: Provide fs_filtops weak alias. We should introduce a link set for sys_kfilters, but this works around the problem for now -- librump's dependency on librumpvfs symbols.
1.197	26-Feb-2023	skrll	nkmempages should be size_t
1.196	30-Apr-2020	riastradh	branches: 1.196.20; Rewrite entropy subsystem. Primary goals: 1. Use cryptography primitives designed and vetted by cryptographers. 2. Be honest about entropy estimation. 3. Propagate full entropy as soon as possible. 4. Simplify the APIs. 5. Reduce overhead of rnd_add_data and cprng_strong. 6. Reduce side channels of HWRNG data and human input sources. 7. Improve visibility of operation with sysctl and event counters. Caveat: rngtest is no longer used generically for RND_TYPE_RNG rndsources. Hardware RNG devices should have hardware-specific health tests. For example, checking for two repeated 256-bit outputs works to detect AMD's 2019 RDRAND bug. Not all hardware RNGs are necessarily designed to produce exactly uniform output. ENTROPY POOL - A Keccak sponge, with test vectors, replaces the old LFSR/SHA-1 kludge as the cryptographic primitive. - `Entropy depletion' is available for testing purposes with a sysctl knob kern.entropy.depletion; otherwise it is disabled, and once the system reaches full entropy it is assumed to stay there as far as modern cryptography is concerned. - No `entropy estimation' based on sample values. Such `entropy estimation' is a contradiction in terms, dishonest to users, and a potential source of side channels. It is the responsibility of the driver author to study the entropy of the process that generates the samples. - Per-CPU gathering pools avoid contention on a global queue. - Entropy is occasionally consolidated into global pool -- as soon as it's ready, if we've never reached full entropy, and with a rate limit afterward. Operators can force consolidation now by running sysctl -w kern.entropy.consolidate=1. - rndsink(9) API has been replaced by an epoch counter which changes whenever entropy is consolidated into the global pool. . Usage: Cache entropy_epoch() when you seed. If entropy_epoch() has changed when you're about to use whatever you seeded, reseed. . Epoch is never zero, so initialize cache to 0 if you want to reseed on first use. . Epoch is -1 iff we have never reached full entropy -- in other words, the old rnd_initial_entropy is (entropy_epoch() != -1) -- but it is better if you check for changes rather than for -1, so that if the system estimated its own entropy incorrectly, entropy consolidation has the opportunity to prevent future compromise. - Sysctls and event counters provide operator visibility into what's happening: . kern.entropy.needed - bits of entropy short of full entropy . kern.entropy.pending - bits known to be pending in per-CPU pools, can be consolidated with sysctl -w kern.entropy.consolidate=1 . kern.entropy.epoch - number of times consolidation has happened, never 0, and -1 iff we have never reached full entropy CPRNG_STRONG - A cprng_strong instance is now a collection of per-CPU NIST Hash_DRBGs. There are only two in the system: user_cprng for /dev/urandom and sysctl kern.?random, and kern_cprng for kernel users which may need to operate in interrupt context up to IPL_VM. (Calling cprng_strong in interrupt context does not strike me as a particularly good idea, so I added an event counter to see whether anything actually does.) - Event counters provide operator visibility into when reseeding happens. INTEL RDRAND/RDSEED, VIA C3 RNG (CPU_RNG) - Unwired for now; will be rewired in a subsequent commit.
1.195	02-Jan-2020	thorpej	- Eliminate the global "boottime" variable, which was being accessed without any synchronization against changes by e.g. clock_settime(). - Replace with new getbinboottime() / getnanoboottime() / getmicroboottime() functions (naming mirrors that of other time access functions in kern_tc.c). It returns the (maybe-converted) value of timebasebin, which also tracks our estimate of when the system was booted (i.e. the legacy "boottime" was redundant). XXX There needs to be a lockless synchronization mechanism for reading timebasebin, but this is a problem in kern_tc.c that pre-existed these "boottime" changes. At least now the problem is centralized in one location.
1.194	02-Jan-2020	martin	Add shutting_down variable for rump.
1.193	16-Dec-2019	ad	- Extend the per-CPU counters matt@ did to include all of the hot counters in UVM, excluding uvmexp.free, which needs special treatment and will be done with a separate commit. Cuts system time for a build by 20-25% on a 48 CPU machine w/DIAGNOSTIC. - Avoid 64-bit integer divide on every fault (for rnd_add_uint32).
1.192	26-Sep-2019	bad	Provide a weak alias for vnode_to_path to be used unless librumpvfs is present.
1.191	02-Jun-2019	kre	branches: 1.191.2; Apply a patch from hannken@ which adds a weak alias for rump_getcwd_common() allowing -lrump to be used without -lrumpvfs. This is an alternate fix to the earluer one which added -lrumvfs to many rump based tests (and the rump server) which might be undone soon. This also fixes the sun2 build.
1.190	09-Mar-2019	hannken	Rumpkernel has its own thread deallocation. Add missing fstrans_lwp_dtor() to lwproc_freelwp(). PR bin/50350: rump/rumpkern/t_sp/stress_{long,short} fail on Core 2 Quad
1.189	05-Dec-2018	christos	no more need for get_expose_address() here.
1.188	06-Oct-2018	christos	add get_expose_address()
1.187	05-Oct-2018	hannken	Bring back three state file system suspension: NORMAL -> SUSPENDING -> SUSPENDED and add operation fstrans_start_lazy() that only blocks while SUSPENDED. Change vndthread() support operation handle_with_rdwr() to bracket its file system operations by fstrans_start_lazy() and fstrans_done(). PR kern/53624 (dom0 freeze on domU exit)
1.186	10-Aug-2018	pgoyette	Allow syscall_establish() to install new syscalls when the existing entry-point is either sys_nomodule or sys_nosys. Update the makesyscalls.sh script to create a const array of bits to allow syscall_disestablish() to properly restore the original entry-point. Update all the initializers of struct emul to initialize the pointer to the bit array struct emul. XXX Regen of all files created by makesyscalls.sh will come soon, XXX followed by a kernel version bump (since struct emul is being XXX modified). This commit should address PR kern/45781 and also removes the need for the work-around for that PR in file sys/arch/usermode/modules/syscallemu/syscallemu.c
1.185	21-Nov-2017	ozaki-r	branches: 1.185.2; 1.185.4; Add missing inclusion of pserialize.h (fix build)
1.184	21-Nov-2017	ozaki-r	Implement debugging feature for pserialize(9) The debugging feature detects violations of pserialize constraints. It causes a panic: - if a context switch happens in a read section, or - if a sleepable function is called in a read section. The feature is enabled only if LOCKDEBUG is on. Discussed on tech-kern@
1.183	09-Nov-2017	christos	added booted_method
1.182	04-Jun-2017	hannken	Operations fstrans_start() and fstrans_start_nowait() now always use FSTRANS_SHARED as lock type so remove the lock type argument. File system state FSTRANS_SUSPENDING is now unused so remove it. Regen vnode_if files. Ride 8.99.1 less than a hour ago.
1.181	22-Feb-2017	hannken	branches: 1.181.6; Add weak aliases for _fstrans_start() and fstrans_done().
1.180	22-Dec-2016	cherry	branches: 1.180.2; physmem should be of type psize_t Also, use PRIxPSIZE when printf(9)ing physmem.
1.179	26-Jan-2016	pooka	branches: 1.179.2; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.178	22-Jan-2016	ozaki-r	Fix build with RUMP_LOCKDEBUG=yes
1.177	18-Jan-2016	pooka	put lwp/proc stuff into the same source module (emul.c -> lwproc.c)
1.176	18-Jan-2016	pooka	massively reduce header pollution from times prehistoric
1.175	18-Jan-2016	pooka	boottime is a timespec, not timeval
1.174	29-Dec-2015	pgoyette	Now that the table of auto-loadable syscalls is per-emulation, make sure that the rump-kernel has its own list. Otherwise, missing syscalls won't trigger a module auto-load. This commit finishes the work to get tests/lib/librumphijack/t_tcpip nfs_autoload test case working again after 16 months of failures! (see PR bin/49153).
1.173	25-Aug-2015	pooka	add cpu_getmodel()
1.172	24-Jul-2015	pooka	Since the rump kernel does not know when the container it's running in actually halts, print "halted" in the hypercall.
1.171	22-Apr-2015	pooka	Include kern_clock.c in rump kernels.
1.170	18-Apr-2015	pooka	Give remote clients struct pmap storage. Although the pmap is unused, that way we can sure that the pmap macro framework doesn't access all the wrong places.
1.169	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.168	18-Nov-2014	pooka	branches: 1.168.2; delay() can't use rumpuser_clock_sleep(), because that may unschedule(). Instead, busyloop with calls to rumpuser_clock_gettime(). Fixing delay() properly should addressed in hypercall rev.18 by introducing a nowrap variant/flag for rumpuser_clock_sleep().
1.167	18-Nov-2014	pooka	Attempt to make sure that DELAY()/delay() is available in all MD names.
1.166	28-May-2014	justin	Add missing __diagused in rump code
1.165	25-Apr-2014	pooka	cpu_reboot() is more of an emul.c thing than a rump.c thing
1.164	11-Mar-2014	pooka	branches: 1.164.2; Put the syncobjs in emul.c instead of locks.c so that they are present for both locks.c and locks_up.c alike.
1.163	20-Feb-2014	pooka	+ resettodr
1.162	29-Jan-2014	pooka	lwp0 needs l_proc set for panic->cpu_reboot to dump core the right way
1.161	17-Jan-2014	pooka	Use subr_cprng.c instead of stub implementation. Rijndael migrates from rumpkern_crypto to rumpkern due to it being mandatory for cprng.
1.160	16-Dec-2013	pooka	Translate return values for emulations, e.g. Linux. For ports without __HAVE_MINIMAL_EMUL, we simply look up the values from p->p_emul->e_errno. For ports which cannot afford to keep an extra pointer per emul structure around, we hope there is __HAVE_SYSCALL_INTERN support and thread the errno values through p_emuldata. Notably, we cannot alter the syscall method like most ports do with syscall_intern, since they do it via p_mdproc, so MI code is not possible there.
1.159	09-Dec-2013	pooka	Support ktrace for rump kernels. Requested by Justin Cormack on rumpkernel-users.
1.158	30-Apr-2013	pooka	branches: 1.158.4; Flip parameter order in the clock hypercalls to make them consistent with everything else wrt in/out parameters.
1.157	30-Apr-2013	pooka	Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.156	28-Apr-2013	pooka	Improve the time-related hypercalls so that's it's possible to sleep until an absolute time on the host's monotonic clock (should something like that be supported).
1.155	18-Mar-2013	para	calculate vnode cache size based on the resource it gets allocated from this stops setting kern.maxvnodes to high so it exhausts available space in kmem http://mail-index.netbsd.org/tech-kern/2013/03/08/msg015095.html
1.154	07-Mar-2013	pooka	set e_nsysent
1.153	19-Feb-2013	martin	Stopgap fix to make rump cooperate with pserialize, may be revisited later. Patch from pooka, ok: rmind. No related regressions in a complete atf test run (which works again with this, even on non x86 SMP machines).
1.152	20-Jan-2013	rmind	Provide xc_send_ipi() routine in RUMP, which is required for high-priority xcall(9) mechanism. It is emulated using low-priority xcall(9).
1.151	27-Oct-2012	chs	split device_t/softc for all remaining drivers. replace "struct device *" with "device_t". use device_xname(), device_unit(), etc.
1.150	21-Mar-2011	pooka	branches: 1.150.4; 1.150.10; 1.150.14; Update copyright statements. no functional change.
1.149	21-Jan-2011	pooka	Since "physmem" is largely unused except for zfs wanting to know if it has enough memory available, just pick a number which makes zfs happy. We could use a MIN() of available host mem and rump_memlimit, though ...
1.148	06-Jan-2011	pooka	branches: 1.148.2; 1.148.4; Support LOCKDEBUG. To use it, compile sys/rump with RUMP_LOCKDEBUG=yes. requested by martin (sparc64 gdb cannot reliably produce a stack trace)
1.147	21-Nov-2010	pooka	Realize the >1yo comment above rump_reboot and retire them to make room for sys_reboot.
1.146	15-Oct-2010	tsutsui	Make common kernel module binaries work on both sun3 and sun3x. Tested on 3/160 (on TME) and (real) 3/80. XXX: module files can be loaded only on single user?
1.145	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.144	23-Jun-2010	pooka	As normal, fix breakage from untested commits by rmind.
1.143	14-Jun-2010	pooka	Remove comment which wasn't supposed to get committed.
1.142	14-Jun-2010	pooka	Make some stubby tty routines used by printf weak aliases, so that the full ones will be used if we have the upcoming tty component loaded.
1.141	13-Jun-2010	pooka	Fix previous in emul.c -- only numbers are operands for cpp comparisons. Apparently non-numbers logically produce arch-dependent behaviour.
1.140	13-Jun-2010	pooka	deal with sun3's module disability
1.139	13-Jun-2010	pooka	add rest of sparc pagesize variables
1.138	10-Jun-2010	pooka	Use kern_proc.c instead of a collection of stubs. But what we really wanted from this commit was the support for proc_specificdata. TODO: make creating a new process actually use kern_proc and maybe even add an interface which starts a process with "any pid you don't like"
1.137	11-May-2010	pooka	adjust comment in previous. XXX: should make that (and physmem) mean something here
1.136	11-May-2010	pooka	remove unnecessary #ifdef
1.135	01-May-2010	pooka	Now that we have a big devsw_conv0, need at least as many entries in devsw as the highest device number in the conv table. Do a "good for a hundred years" guess now, fix properly later.
1.134	30-Apr-2010	pooka	Include devsw_conv0 from an i386 kernel compilation (no, we don't care about the arch as long as all the devices we care about are present). The file should be autogenerated, but that requires some more changes to config(1).
1.133	28-Apr-2010	pooka	Make initial devsw a little more believable. Especially adjust max_sys_devsw, since it was previously a bit too much, given that the correct value is 0.
1.132	21-Apr-2010	pooka	remove stuff which now comes via std. kernel source modules
1.131	21-Apr-2010	pooka	support kern_resource
1.130	21-Apr-2010	pooka	Move all signal-related from emul.c to signals.c. Additionally, define a few alternate signal models for the rump kernel, including ones where signals are ignored or sent to host processes.
1.129	19-Apr-2010	pooka	no \n in panic
1.128	17-Apr-2010	pooka	One emul is enough and since we need emul_netbsd, retire emul_rump.
1.127	17-Apr-2010	pooka	Move scheduling related routines from emul.c to scheduler.c
1.126	14-Apr-2010	pooka	Use kern_syscall.c instead of homegrown syscall dis/establishment routines.
1.125	14-Apr-2010	pooka	Include kern_tc and use a timecounter driver instead of homerolled kern_tc implementation.
1.124	31-Mar-2010	pooka	We don't have a real rootdev (by default at least), so set it to NODEV.
1.123	01-Mar-2010	pooka	branches: 1.123.2; add signal stubs required by mfs
1.122	08-Feb-2010	joerg	Remove separate mb_map. The nmbclusters is computed at boot time based on the amount of physical memory and limited by NMBCLUSTERS if present. Architectures without direct mapping also limit it based on the kmem_map size, which is used as backing store. On i386 and ARM, the maximum KVA used for mbuf clusters is limited to 64MB by default. The old default limits and limits based on GATEWAY have been removed. key_registered_sb_max is hard-wired to a value derived from 2048 clusters.
1.121	31-Jan-2010	pooka	branches: 1.121.2; Include newly-created subr_device.c and remove few special case device accessor copypastes. This makes it possible to link static binaries which use -lrumpdev.
1.120	31-Jan-2010	pooka	include kern_hook.c
1.119	15-Jan-2010	pooka	Use subr_percpu.c instead of homegrown implementation. ...except when using malloc(3)-relegated allocators (happens in production e.g. on Linux), since subr_percpu.c uses vmem and i don't want to reimplement vmem.
1.118	13-Jan-2010	pooka	Minimize unnecessary differences in rump.
1.117	13-Jan-2010	pooka	Add a few symbols used by the tty code.
1.116	09-Jan-2010	pooka	Include kern_pmf.c in rumpdev.
1.115	08-Jan-2010	dyoung	Expand PMF_FN_* macros.
1.114	25-Dec-2009	elad	allow rump to build
1.113	16-Dec-2009	pooka	Generate vers.c and include it in the kernel component.
1.112	03-Dec-2009	pooka	Decide it's not worth the fuss to have rumpfs as a module and just hardcode attach into rump_vfs_init(). Saves us from a lot of pingpong init bouncing from one component to another to get the order right.
1.111	01-Dec-2009	pooka	Include cpu crosscall support (instead of stubbing it out).
1.110	26-Nov-2009	pooka	For rumpfs, do mountroot instead of the bunch of homegrown hacks currently there. Still needs a little massage to get the kernel interfaces right and avoid copypaste especially from main(). Also, move it a bit more into the direction of a real file system (finally!) by giving it a vfsops. Most ops are still unimplemented, though.
1.109	04-Nov-2009	pooka	misc_stub and emul have been the same thing for a looong time now, so just move the few remaining routines in misc_stub to emul.
1.108	04-Nov-2009	pooka	Give the kthread->pthread interface emulation its own module.
1.107	04-Nov-2009	pooka	Pull all relegating memory allocators under a common roof in memalloc.c
1.106	04-Nov-2009	pooka	move copy-related routines to their own module
1.105	04-Nov-2009	pooka	Use std. uiomove() & friends.
1.104	21-Oct-2009	rmind	Sync rump with kernel changes.
1.103	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.102	15-Oct-2009	pooka	Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.101	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.100	14-Oct-2009	pooka	"rumppriv" goes back to "rump" per internal interface naming change.
1.99	14-Oct-2009	pooka	Adjust rump sources for external/internal interfaces. No functional change.
1.98	09-Oct-2009	pooka	Provide an interface for reboot.
1.97	03-Oct-2009	christos	Need proc_uidmatch
1.96	24-Sep-2009	pooka	remove a no longer necessary hack
1.95	20-Sep-2009	pooka	default to AB_SILENT
1.94	07-Sep-2009	pooka	provide pmf stubs
1.93	06-Sep-2009	pooka	move hppa cpp kludge to the end of the file
1.92	04-Sep-2009	pooka	add a few global symbols required by kernel code
1.91	20-Jul-2009	pooka	realloc works much better if it actually uses realloc instead of malloc
1.90	09-Jun-2009	pooka	Nuke some bss stuff which is coming from vfs_bio via rumpvfs.
1.89	07-May-2009	pooka	Don't create unpgc thread if RUMP_THREADS is 0. The benefit is the usual: possible to run programs using AF_LOCAL without threads.
1.88	29-Apr-2009	pooka	Add proof-of-concept code for enabling system calls to rump virtual kernels running in other processes on the same machine or on an entirely different host. I wrote this a while ago and am now committing it mainly to avoid losing it. It works, but could do with a little tuning here and there. What this will hopefully eventually buy us is the ability to use standard userland tools to configure rump kernels, e.g. ifconfig(8) and route(8) could be used to configure the networking stack provided by a rump kernel. Also some distributed OS implications may apply. fun fact: a system call which just does copyin/copyout takes >1000x longer when made over the LAN as compared to when made on the same machine.
1.87	26-Apr-2009	pooka	Fix getnano/microuptime to report actual uptime.
1.86	26-Apr-2009	pgoyette	Catch up with recent changes to sys/proc.h (Hello, rmind!)
1.85	30-Mar-2009	christos	we want microuptime too.
1.84	30-Mar-2009	christos	need getnanouptime not getmicrouptime
1.83	30-Mar-2009	christos	one more timeval -> timespec line
1.82	29-Mar-2009	christos	Catch up with kernel changes
1.81	18-Mar-2009	pooka	Support kqueue in the rump virtual kernel.
1.80	18-Mar-2009	cegger	Ansify function definitions w/o arguments. Generated with sed.
1.79	27-Feb-2009	pooka	decouple rumpuser gettime from struct timeval
1.78	26-Feb-2009	pooka	Make rumpuser stat and nanosleep independent of the host system stat and timespec definitions.
1.77	07-Feb-2009	pooka	branches: 1.77.2; Make the clock interrupt tick based on absolute time instead of relative time. This prevents drifting. Also, keep track of time within userspace, so we do not have to make a syscall to get the clock value. This is approximately 7 times cheaper, but on the negative side is limited to the clock interrupt frequency.
1.76	13-Jan-2009	pooka	Implement block I/O as a real block driver instead of a hacked copy of specfs. That was easier years ago when rump didn't support devices, but brings no gain now. This allows us to include the real specfs in rump.
1.75	12-Jan-2009	pooka	Shove in some hppa love to help with spcopy.S (why does that need to be in libkern?).
1.74	11-Jan-2009	pooka	Protect against nfssilly in RUMP_THREADS=0
1.73	11-Jan-2009	christos	merge christos-time_t
1.72	07-Jan-2009	pooka	provide kern_realloc
1.71	05-Jan-2009	pooka	Rename malloc() to kern_malloc() to avoid name conflict with libc. Now it is possible to use the kernel linker with rump.
1.70	04-Jan-2009	pooka	Include libkern contents in librump.
1.69	02-Jan-2009	pooka	Sauce with some kludges: * revert rev 1.68 of emul.c: delay() is hopelessly MD and needs whipping (not the fun kind) * #undef DELAY in cpu.h This will hopefully fix build for all archs and give me time to hop through our 46521 fine archs and edit the headers.
1.68	02-Jan-2009	pooka	Export delay, _delay and delay_func symbols to attempt to appease the macro mania set over all architectures.
1.67	02-Jan-2009	pooka	Include kernel printf routines in rump instead of relying on the magic libc symbol. This also allows to bid farewell to subr_prf2.c and merge the contents back to subr_prf.c. The host kernel bridging is now done via rumpuser_putchar().
1.66	01-Jan-2009	pooka	Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.65	30-Dec-2008	pooka	properly handle kthread_exit()
1.64	29-Dec-2008	pooka	include subr_devsw in rumpkern
1.63	21-Dec-2008	cegger	branches: 1.63.2; undo turn malloc flags to enums. Requested by christos. Keep malloc flag defines in kernel section.
1.62	20-Dec-2008	cegger	Turn malloc flags into an enum. Fixes build breakage.
1.61	18-Dec-2008	pooka	__KERNEL_RCSID
1.60	17-Dec-2008	pooka	If available (__NetBSD__), use pthread_setname_np() to set the thread name for kthread_create().
1.59	14-Dec-2008	pooka	If the arch uses __BSWAP_RENAME, provide non-namespaced kernel symbols which just call the libc symbols. Allows to get rid of rump machine/bswap.h. XXX: 1) this is unlikely to work on non-NetBSD ==> 2) should look into including libkern in librump
1.58	10-Dec-2008	pooka	Make non-mpsafe threads KERNEL_LOCK() before starting execution.
1.57	27-Nov-2008	pooka	Remove the whole magic ubc window thingie. All file systems use ubc_uiomove() now, so we can hook ourselves there.
1.56	26-Nov-2008	pooka	Add a few symbols required by nfsd
1.55	17-Nov-2008	pooka	Add more verbose commentage to the module thread non-creation.
1.54	17-Nov-2008	pooka	Ignore the module unload thread.
1.53	14-Oct-2008	pooka	branches: 1.53.2; 1.53.4; 1.53.8; Add some more trivial emulations.
1.52	13-Oct-2008	pooka	Provide psignal() so that we don't get linked against psignal(3). As there is no real process model currently, just "trap" the signals appropriately.
1.51	10-Oct-2008	pooka	Support callouts and call callout_hardclock() from the timer interrupt thread. The sleepq implementation required for callouts is horrible, kludged only for callouts, and generally unacceptable. It needs revisiting, but I'm not sure yet should rump or kern_timeout be improved. It's almost untested as of now, but committing this will give me some maneuvering space while letting application compile.
1.50	02-Oct-2008	pooka	Remove rumpuser_yield(). Not only doesn't it really make sense here, some kind soul made it completely empty.
1.49	30-Sep-2008	pooka	Switch to std kern_auth.
1.48	25-Sep-2008	pooka	Move global malloc types from kern_malloc into a separate module.
1.47	12-Aug-2008	pooka	Make it possible to control starting of threads per env variable instead of only at compile-time.
1.46	04-Aug-2008	pooka	Add support for using real kmem/vmem. Don't enable it by default, though, since it a) is a lot of unnecessary indirection in rump b) requires callouts which are so far unimplemented.
1.45	01-Aug-2008	pooka	support real sysctls
1.44	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.43	21-Jul-2008	pooka	Repeat after me: do not pollute sys with #ifdef _RUMPKERNEL
1.42	18-Jul-2008	pooka	emulate vlog()
1.41	25-Jun-2008	pooka	branches: 1.41.2; Don't compile kern_lock for rump any more, it's no longer required. Allows us to get rid of the incorrect _RUMPKERNEL ifdefs outside sys/rump.
1.40	24-Jun-2008	pooka	Make kpause() use nanosleep() instead of usleep(). Fixes >=1s sleeps to actually sleep a bit too. from Arnaud Ysmal
1.39	29-May-2008	pooka	branches: 1.39.2; Also fake the namecache g/c thread in kthread_create() so that file systems can again be run without threads (and hence gdb can be used on them).
1.38	24-Apr-2008	ad	branches: 1.38.2; 1.38.4; Catch up with process locking changes.
1.37	06-Apr-2008	matt	branches: 1.37.2; Add a device_xname() stub.
1.36	25-Mar-2008	yamt	- for some ports, especially for ones without pmap_growkernel, buf_memcalc is used by bootstrap as well. fix NULL dereference for them. - limit kva usage for each cache to 20% of vm_map. XXX a bit arbitrary. - add a comment.
1.35	24-Mar-2008	martin	Adapt to sel* changes
1.34	23-Mar-2008	yamt	when calculating some cache sizes, consider the amount of available kva. PR/33185.
1.33	21-Mar-2008	ad	Catch up with descriptor handling changes. See kern_descrip.c revision 1.173 for details.
1.32	19-Mar-2008	bjs	Add lwp_unsleep from kern/kern_lwp.c so that this builds. ok ad@
1.31	12-Mar-2008	pooka	Support multiple file systems within one process with ukfs by using a "chroot" for each file system.
1.30	11-Mar-2008	pooka	Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.29	15-Feb-2008	ad	branches: 1.29.2; 1.29.6; Implement yield().
1.28	15-Feb-2008	ad	Add dummy hardclock_ticks.
1.27	27-Jan-2008	pooka	Use vfs_subr.c from sys/kern. This brings differences in the vnode life cycle between rump and a real kernel to a minimum.
1.26	24-Jan-2008	pooka	Use namei() etc. from kernel sources instead of a reimplementation. To accommodate, give the rootvnode its own vnode op vector with a simple lookup operation. This is used for looking up the file system's device vnode instead of doing that directly in a homesmoked namei().
1.25	24-Jan-2008	pooka	Don't use PAGE_SIZE when faking physmem, as it's not always available at compile-time. We could init it runtime, but it's just a random number anyway.
1.24	24-Jan-2008	pooka	Default physmem was too tight, increase to 256megs from 0 bytes.
1.23	22-Jan-2008	pooka	Until debugging threaded programs in NetBSD is fixed, supply the cpp option RUMP_WITHOUT_THREADS as a workaround. If defined, it makes rump itself operate single-threaded and prevents kthread_create() from working.
1.22	20-Jan-2008	joerg	Now that __HAVE_TIMECOUNTER and __HAVE_GENERIC_TODR are invariants, remove the conditionals and the code associated with the undef case.
1.21	04-Jan-2008	pooka	Print "panic: " before panicstr when panicking.
1.20	02-Jan-2008	pooka	Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.19	11-Nov-2007	pooka	branches: 1.19.6; fix build (hi rmind!)
1.18	04-Nov-2007	pooka	branches: 1.18.2; * sprinkle some locking into the vm code * avoid extra insert+search+remove step in file systems using ubc_uiomove() instead of standard uiomove()
1.17	31-Oct-2007	pooka	Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.16	24-Oct-2007	pooka	branches: 1.16.2; "flags * (M_CANFAIL \| M_NOWAIT)" is probably not correct. Use & instead. And while committing, add other random cruft I've needed recently.
1.15	19-Oct-2007	ad	machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h
1.14	24-Sep-2007	pooka	branches: 1.14.2; Don't whine about wakeup() not being implemented every time it's called. Nobody cares unless ltsleep() is called (and it panics).
1.13	11-Sep-2007	briggs	branches: 1.13.2; If !_HAVE_TIMECOUNTER, initialize 'time' instead of 'time_second.'
1.12	10-Sep-2007	pooka	Provide errno from rumpuser_{gettimeofday,close}() to be consistent.
1.11	26-Aug-2007	pooka	branches: 1.11.2; 1.11.4; few panicky functions
1.10	20-Aug-2007	pooka	branches: 1.10.2; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.9	15-Aug-2007	pooka	Wrap malloc() so that we catch the kernel arguments (namely M_ZERO) properly. It's fairly amusing that this wasn't noticed until now.
1.8	14-Aug-2007	pooka	branches: 1.8.2; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.7	13-Aug-2007	pooka	Use supermarket variety vfs_vnops.c instead of homecooked routines (that's actually a good thing here).
1.6	13-Aug-2007	pooka	compile in libkern __assert.c, argument order differs from libc model
1.5	09-Aug-2007	pooka	Add some stubs for lfs.
1.4	08-Aug-2007	pooka	Provide rumpmachine bswap.h, which makes bswapxx() call rumpuser directly instead of relying on a symbol in rumpkern. I would like to make it call the libc symbol directly, but I don't currently know how to make it do that MI. Makes hfs work (on i386), as it avoids endless recursion in bswap64(). Thanks to dillo for the image!
1.3	08-Aug-2007	pooka	* compile param.c * move opts to a separate directory
1.2	08-Aug-2007	pooka	add microtime
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file emul.c was added on branch matt-mips64 on 2007-08-05 22:28:08 +0000
1.8.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.8.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.8.2.1	14-Aug-2007	skrll	file emul.c was added on branch nick-csl-alignment on 2007-08-15 13:50:35 +0000
1.10.2.4	23-Oct-2007	ad	Sync with head.
1.10.2.3	09-Oct-2007	ad	Sync with head.
1.10.2.2	20-Aug-2007	ad	Sync with HEAD.
1.10.2.1	20-Aug-2007	ad	file emul.c was added on branch vmlocking on 2007-08-20 22:07:26 +0000
1.11.4.9	24-Mar-2008	yamt	sync with head.
1.11.4.8	17-Mar-2008	yamt	sync with head.
1.11.4.7	27-Feb-2008	yamt	sync with head.
1.11.4.6	04-Feb-2008	yamt	sync with head.
1.11.4.5	21-Jan-2008	yamt	sync with head
1.11.4.4	15-Nov-2007	yamt	sync with head.
1.11.4.3	27-Oct-2007	yamt	sync with head.
1.11.4.2	03-Sep-2007	yamt	sync with head.
1.11.4.1	26-Aug-2007	yamt	file emul.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:26 +0000
1.11.2.3	23-Mar-2008	matt	sync with HEAD
1.11.2.2	09-Jan-2008	matt	sync with HEAD
1.11.2.1	06-Nov-2007	matt	sync with HEAD
1.13.2.1	06-Oct-2007	yamt	sync with head.
1.14.2.2	13-Nov-2007	bouyer	Sync with HEAD
1.14.2.1	25-Oct-2007	bouyer	Sync with HEAD.
1.16.2.4	14-Nov-2007	joerg	Sync with HEAD.
1.16.2.3	04-Nov-2007	jmcneill	Sync with HEAD.
1.16.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.16.2.1	24-Oct-2007	joerg	file emul.c was added on branch jmcneill-pm on 2007-10-31 23:14:16 +0000
1.18.2.2	18-Feb-2008	mjf	Sync with HEAD.
1.18.2.1	19-Nov-2007	mjf	Sync with HEAD.
1.19.6.3	23-Jan-2008	bouyer	Sync with HEAD.
1.19.6.2	08-Jan-2008	bouyer	Sync with HEAD
1.19.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.29.6.6	17-Jan-2009	mjf	Sync with HEAD.
1.29.6.5	05-Oct-2008	mjf	Sync with HEAD.
1.29.6.4	28-Sep-2008	mjf	Sync with HEAD.
1.29.6.3	29-Jun-2008	mjf	Sync with HEAD.
1.29.6.2	02-Jun-2008	mjf	Sync with HEAD.
1.29.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.29.2.1	24-Mar-2008	keiichi	sync with head.
1.37.2.2	04-Jun-2008	yamt	sync with head
1.37.2.1	18-May-2008	yamt	sync with head.
1.38.4.3	10-Oct-2008	skrll	Sync with HEAD.
1.38.4.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.38.4.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.38.2.8	09-Oct-2010	yamt	sync with head
1.38.2.7	11-Aug-2010	yamt	sync with head.
1.38.2.6	11-Mar-2010	yamt	sync with head
1.38.2.5	16-Sep-2009	yamt	sync with head
1.38.2.4	19-Aug-2009	yamt	sync with head.
1.38.2.3	20-Jun-2009	yamt	sync with head
1.38.2.2	16-May-2009	yamt	sync with head
1.38.2.1	04-May-2009	yamt	sync with head.
1.39.2.3	31-Jul-2008	simonb	Sync with head.
1.39.2.2	21-Jul-2008	simonb	Sync with head.
1.39.2.1	27-Jun-2008	simonb	Sync with head.
1.41.2.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.41.2.1	19-Oct-2008	haad	Sync with HEAD.
1.53.8.1	15-Feb-2014	matt	Add vpanic
1.53.4.1	15-Jul-2011	riz	Pull up following revision(s) (requested by manu in ticket #1604): sys/fs/puffs/puffs_msgif.c: revision 1.84 Apply patch from PR kern/44093 by yamt: Interrupt server wait only on certain signals (same set at nfs -i) instead of all signals. According to the PR this helps with "git clone" run on a puffs file system.
1.53.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.53.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.53.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.63.2.5	10-Jan-2009	christos	merge diffs
1.63.2.4	04-Jan-2009	christos	merge diffs.
1.63.2.3	30-Dec-2008	christos	sync with head.
1.63.2.2	28-Dec-2008	christos	missing const
1.63.2.1	21-Dec-2008	christos	file emul.c was added on branch christos-time_t on 2008-12-28 22:22:12 +0000
1.77.2.2	23-Jul-2009	jym	Sync with HEAD.
1.77.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.121.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.121.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.121.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.123.2.4	21-Apr-2011	rmind	sync with head
1.123.2.3	05-Mar-2011	rmind	sync with head
1.123.2.2	03-Jul-2010	rmind	sync with head
1.123.2.1	30-May-2010	rmind	sync with head
1.148.4.1	08-Feb-2011	bouyer	Sync with HEAD
1.148.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.150.14.5	03-Dec-2017	jdolecek	update from HEAD
1.150.14.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.150.14.3	23-Jun-2013	tls	resync from head
1.150.14.2	25-Feb-2013	tls	resync with head
1.150.14.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.150.10.1	08-Feb-2013	riz	Pull up following revision(s) (requested by rmind in ticket #794): sys/rump/librump/rumpkern/emul.c: revision 1.152 Provide xc_send_ipi() routine in RUMP, which is required for high-priority xcall(9) mechanism. It is emulated using low-priority xcall(9).
1.150.4.3	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.150.4.2	23-Jan-2013	yamt	sync with head
1.150.4.1	30-Oct-2012	yamt	sync with head
1.158.4.1	18-May-2014	rmind	sync with head
1.164.2.1	10-Aug-2014	tls	Rebase.
1.168.2.6	28-Aug-2017	skrll	Sync with HEAD
1.168.2.5	05-Feb-2017	skrll	Sync with HEAD
1.168.2.4	19-Mar-2016	skrll	Sync with HEAD
1.168.2.3	22-Sep-2015	skrll	Sync with HEAD
1.168.2.2	06-Jun-2015	skrll	Sync with HEAD
1.168.2.1	06-Apr-2015	skrll	Sync with HEAD
1.179.2.2	20-Mar-2017	pgoyette	Sync with HEAD
1.179.2.1	07-Jan-2017	pgoyette	Sync with HEAD. (Note that most of these changes are simply $NetBSD$ tag issues.)
1.180.2.1	21-Apr-2017	bouyer	Sync with HEAD
1.181.6.3	09-Oct-2018	martin	Pull up following revision(s) (requested by hannken in ticket #1052): sys/kern/vfs_trans.c: revision 1.51 distrib/sets/lists/comp/mi: revision 1.2233 share/man/man9/fstrans.9: revision 1.27 share/man/man9/Makefile: revision 1.431 sys/sys/fstrans.h: revision 1.12 sys/rump/librump/rumpkern/emul.c: revision 1.187 sys/dev/vnd.c: revision 1.266 sys/miscfs/genfs/genfs_vfsops.c: revision 1.8 Bring back three state file system suspension: NORMAL -> SUSPENDING -> SUSPENDED and add operation fstrans_start_lazy() that only blocks while SUSPENDED. Change vndthread() support operation handle_with_rdwr() to bracket its file system operations by fstrans_start_lazy() and fstrans_done(). PR kern/53624 (dom0 freeze on domU exit)
1.181.6.2	30-Nov-2017	martin	Pull up following revision(s) (requested by ozaki-r in ticket #405): sys/sys/pserialize.h: revision 1.2 sys/kern/kern_lock.c: revision 1.160 sys/kern/subr_pserialize.c: revision 1.9 sys/rump/librump/rumpkern/emul.c: revision 1.184 sys/rump/librump/rumpkern/emul.c: revision 1.185 sys/rump/librump/rumpkern/rump.c: revision 1.330 Implement debugging feature for pserialize(9) The debugging feature detects violations of pserialize constraints. It causes a panic: - if a context switch happens in a read section, or - if a sleepable function is called in a read section. The feature is enabled only if LOCKDEBUG is on. Discussed on tech-kern@ Add missing inclusion of pserialize.h (fix build)
1.181.6.1	04-Jun-2017	bouyer	pullup the following revisions, requested by hannken in ticket #2: src/share/man/man9/fstrans.9 1.25 src/sys/kern/vfs_mount.c 1.66 src/sys/kern/vfs_subr.c 1.468 src/sys/kern/vfs_trans.c 1.46 src/sys/kern/vfs_vnode.c 1.94, 1.95, 1.96 src/sys/kern/vnode_if.c 1.105, 1.106 src/sys/kern/vnode_if.sh 1.65, 1.66 src/sys/kern/vnode_if.src 1.76 src/sys/miscfs/genfs/genfs_io.c 1.69 src/sys/miscfs/genfs/genfs_vnops.c 1.196, 1.197 src/sys/miscfs/genfs/layer_extern.h 1.40 src/sys/miscfs/genfs/layer_vfsops.c 1.51 src/sys/miscfs/genfs/layer_vnops.c 1.67 src/sys/miscfs/nullfs/null_vnops.c 1.42 src/sys/miscfs/overlay/overlay_vnops.c 1.24 src/sys/miscfs/umapfs/umap_vnops.c 1.60 src/sys/rump/include/rump/rumpvnode_if.h 1.29, 1.30 src/sys/rump/librump/rumpkern/emul.c 1.182 src/sys/rump/librump/rumpvfs/rumpvnode_if.c 1.29, 1.30 src/sys/sys/fstrans.h 1.11 src/sys/sys/vnode.h 1.278 src/sys/sys/vnode_if.h 1.100, 1.101 src/sys/sys/vnode_impl.h 1.14, 1.15 src/sys/ufs/lfs/lfs_pages.c 1.12 Vnode state, lock and fstrans cleanup: - Rename vnode state "VS_ACTIVE" to "VS_LOADED" and add synthetic state "VS_ACTIVE" to assert a loaded vnode with usecount > 0. - Redo FSTRANS in vnode_if.c and use it for VOP_LOCK and VOP_UNLOCK. - Cleanup the genfs lock operations. - Make "struct vnode_impl" member "vi_lock" a krwlock_t again. - Remove the lock type argument from fstrans_start and fstrans_start_nowait, remove now unused FSTRANS state "FSTRANS_SUSPENDING".
1.185.4.3	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.185.4.2	08-Apr-2020	martin	Merge changes from current as of 20200406
1.185.4.1	10-Jun-2019	christos	Sync with HEAD
1.185.2.3	26-Dec-2018	pgoyette	Sync with HEAD, resolve a few conflicts
1.185.2.2	20-Oct-2018	pgoyette	Sync with head
1.185.2.1	06-Sep-2018	pgoyette	Sync with HEAD Resolve a couple of conflicts (result of the uimin/uimax changes)
1.191.2.1	18-Oct-2023	martin	Pull up following revision(s) (requested by manu in ticket #1751): sys/dev/raidframe/rf_netbsdkintf.c: revision 1.383 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.385 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.402 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.403 sys/arch/i386/stand/lib/biosdisk.c: revision 1.59 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.377 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.378 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.379 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.392 sys/rump/librump/rumpkern/emul.c: revision 1.200 sys/arch/i386/stand/lib/biosdisk.c: revision 1.60 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.416 (all via patch) Get &rsc->sc_dksc only when we know 'rsc' is not NULL. This was actually harmless because we didn't use the pointer then. Gcc -Os on landisk is not smart enough to follow the conditional initialization and warns, unconditionaly initialize dksc at declaration with a XXX gcc comment. Improve wording in comments in raid_dumpblock(). in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT and remove code to handle failures that can no longer happen. Nix trailing whitespace. if raidframe sets booted_device, log a debug message about it. merge two debug lines in auto-root selection. convert non-config-handled "DEBUG_ROOT" to aprint_debug(). now it's possible to get boot-time info about raidframe root device selection with simple "boot -x". Align the behavior of different boot methods in RAIDframe We enforce the documented and paritally implemented behavior when looking for the kernel in RAID 1 sets without a partition name given. We search for: - A GPT partition with bootme attribute set - A FFS or LFS patititon - The first partition Fix root search in RAID 1 sets We use the wedge information given by bootstrap, where the kernel was found. This requires src/sys/arch/i386/stand/i386/lib/biosdisk.c 1.59 to work in all cases. Fix build with -DNO_GPT
1.196.20.1	18-Oct-2023	martin	Pull up following revision(s) (requested by manu in ticket #418): sys/arch/i386/stand/lib/biosdisk.c: revision 1.59 sys/rump/librump/rumpkern/emul.c: revision 1.200 sys/arch/i386/stand/lib/biosdisk.c: revision 1.60 sys/dev/raidframe/rf_netbsdkintf.c: revision 1.416 Align the behavior of different boot methods in RAIDframe We enforce the documented and paritally implemented behavior when looking for the kernel in RAID 1 sets without a partition name given. We search for: - A GPT partition with bootme attribute set - A FFS or LFS patititon - The first partition Fix root search in RAID 1 sets We use the wedge information given by bootstrap, where the kernel was found. This requires src/sys/arch/i386/stand/i386/lib/biosdisk.c 1.59 to work in all cases. Fix build with -DNO_GPT
1.201.6.1	02-Aug-2025	perseant	Sync with HEAD
1.2	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.1	25-Apr-2014	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.10; 1.1.12; Move the etfs linkage from rumpvfs to rumpkern, and replace the weak alias show with an honest pointer indirection. No client-visible change. (apart from this version working e.g. on musl w/ dlopen)
1.1.12.1	19-Mar-2016	skrll	Sync with HEAD
1.1.10.3	03-Dec-2017	jdolecek	update from HEAD
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	25-Apr-2014	tls	file etfs_wrap.c was added on branch tls-maxphys on 2014-08-20 00:04:40 +0000
1.1.6.2	10-Aug-2014	tls	Rebase.
1.1.6.1	25-Apr-2014	tls	file etfs_wrap.c was added on branch tls-earlyentropy on 2014-08-10 06:56:51 +0000
1.1.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.4.1	25-Apr-2014	yamt	file etfs_wrap.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.2.2	18-May-2014	rmind	sync with head
1.1.2.1	25-Apr-2014	rmind	file etfs_wrap.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.7	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.6	21-Jul-2008	pooka	branches: 1.6.2; Have a COW with fscow_run(). Fixes problem of allocating files on ffs with indirect blocks. found by simonb
1.5	02-Jan-2008	pooka	branches: 1.5.6; 1.5.10; 1.5.12; 1.5.14; 1.5.16; Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.4	02-Jan-2008	ad	Merge vmlocking2 to head.
1.3	02-Dec-2007	hannken	branches: 1.3.2; 1.3.6; Make it compile again.
1.2	07-Oct-2007	hannken	branches: 1.2.4; 1.2.6; Update the file system copy-on-write handler. - Instead of hooking the handler on the specdev of a mounted file system hook directly on the `struct mount'. - Rename from `vn_cow_' to `fscow_' and move to `kern/vfs_trans.c'. Use `mount_specific' instead of clobbering `struct mount' or `struct specinfo'. - Replace the hand-made reader/writer lock with a krwlock. - Keep `vn_cow_' functions and mark as obsolete. - Welcome to NetBSD 4.99.32 - `struct specinfo' changed size. Reviewed by: Jason Thorpe <thorpej@netbsd.org>
1.1	05-Aug-2007	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; 1.1.12; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.12.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.12.1	05-Aug-2007	pooka	file fstrans_stub.c was added on branch matt-mips64 on 2007-08-05 22:28:08 +0000
1.1.10.1	14-Oct-2007	yamt	sync with head.
1.1.8.5	21-Jan-2008	yamt	sync with head
1.1.8.4	07-Dec-2007	yamt	sync with head
1.1.8.3	27-Oct-2007	yamt	sync with head.
1.1.8.2	03-Sep-2007	yamt	sync with head.
1.1.8.1	05-Aug-2007	yamt	file fstrans_stub.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:27 +0000
1.1.6.2	09-Jan-2008	matt	sync with HEAD
1.1.6.1	06-Nov-2007	matt	sync with HEAD
1.1.4.3	09-Oct-2007	ad	Sync with head.
1.1.4.2	20-Aug-2007	ad	Sync with HEAD.
1.1.4.1	05-Aug-2007	ad	file fstrans_stub.c was added on branch vmlocking on 2007-08-20 22:07:27 +0000
1.1.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.1.2.1	05-Aug-2007	skrll	file fstrans_stub.c was added on branch nick-csl-alignment on 2007-08-15 13:50:36 +0000
1.2.6.2	18-Feb-2008	mjf	Sync with HEAD.
1.2.6.1	08-Dec-2007	mjf	Sync with HEAD.
1.2.4.3	03-Dec-2007	joerg	Sync with HEAD.
1.2.4.2	02-Nov-2007	joerg	Reduce diff to HEAD by adding files forgotten in early merges.
1.2.4.1	07-Oct-2007	joerg	file fstrans_stub.c was added on branch jmcneill-pm on 2007-11-02 12:43:51 +0000
1.3.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.3.2.1	28-Dec-2007	ad	Make rump build.
1.5.16.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.5.16.1	19-Oct-2008	haad	Sync with HEAD.
1.5.14.1	21-Jul-2008	simonb	Sync with head.
1.5.12.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.5.10.1	04-May-2009	yamt	sync with head.
1.5.6.2	17-Jan-2009	mjf	Sync with HEAD.
1.5.6.1	28-Sep-2008	mjf	Sync with HEAD.
1.6.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.20	17-Oct-2007	pooka	Compile most genfs routines directly out of the kernel sources. Move special I/O routines to genfs_io.c to mirror kernel naming.
1.19	10-Oct-2007	ad	Merge from vmlocking: - Split vnode::v_flag into three fields, depending on field locking. - simple_lock -> kmutex in a few places. - Fix some simple locking problems.
1.18	01-Sep-2007	pooka	branches: 1.18.2; 1.18.4; * fill struct buf a little better * hop, skip & jump to make uvm_pageratop work
1.17	20-Aug-2007	pooka	branches: 1.17.2; g/c comment invalidated by previous
1.16	20-Aug-2007	pooka	* in getpages, make sure we always align our buffer size to the page size * in putpages, make sure we don't try attempt to push data in a page after eof. also, skip blocks which bmap can't locate (see comment in code). the effect: file systems with fs_bsize < PAGE_SIZE now work r/w
1.15	20-Aug-2007	pooka	branches: 1.15.2; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.14	14-Aug-2007	pooka	branches: 1.14.2; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.13	13-Aug-2007	pooka	Use supermarket variety vfs_vnops.c instead of homecooked routines (that's actually a good thing here).
1.12	11-Aug-2007	pooka	* move rump_vopwrite_fault() into history - we now support the file system faulting in pages if it does e.g. fragment reallocation * get rid of rumpvm_findpage() and always use uvm_pagelookup() * determine a vnode's cleanness by flagging it as being on the work list if we "take" a write fault and removing it from the worklist once pages are flushed. There is no work list here, but at least there is symmetry with the kernel.
1.11	09-Aug-2007	pooka	Fix it a bit & wait for the dust to settle. Also, enable UBC by default. ffs in userspace on top of puffs/p2k/rump is now stable enough to host a make -j4 kernel build (well, at least my kernel build ... but, yes, I am currently running that kernel on my desktop)
1.10	09-Aug-2007	pooka	* fix symlink * actually call a couple of VOPs
1.9	09-Aug-2007	pooka	deal with holes in getpages()
1.8	09-Aug-2007	pooka	fool some KASSERTs
1.7	09-Aug-2007	pooka	Add some stubs for lfs.
1.6	07-Aug-2007	pooka	* adjust device block number based on if we're putting pages to a fs block boudary or not * round writes to DEV_BSIZE, just to be kosher
1.5	07-Aug-2007	pooka	remove the allocstorage param from makepage - not needed
1.4	07-Aug-2007	pooka	track dirty vm objects
1.3	07-Aug-2007	pooka	offset orgies, part n+1. this is still not right, but at least it's better
1.2	06-Aug-2007	pooka	branches: 1.2.2; Instead of going for a PAGE_SIZE nuke, do getpages() in a more sniper style. Makes efs (& other file systems with bsize < PAGE_SIZE) work better.
1.1	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.2.2.2	06-Aug-2007	pooka	Instead of going for a PAGE_SIZE nuke, do getpages() in a more sniper style. Makes efs (& other file systems with bsize < PAGE_SIZE) work better.
1.2.2.1	06-Aug-2007	pooka	file genfs.c was added on branch matt-mips64 on 2007-08-06 20:46:29 +0000
1.14.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.14.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.14.2.1	14-Aug-2007	skrll	file genfs.c was added on branch nick-csl-alignment on 2007-08-15 13:50:37 +0000
1.15.2.3	09-Oct-2007	ad	Sync with head.
1.15.2.2	20-Aug-2007	ad	Sync with HEAD.
1.15.2.1	20-Aug-2007	ad	file genfs.c was added on branch vmlocking on 2007-08-20 22:07:27 +0000
1.17.2.1	06-Nov-2007	matt	sync with HEAD
1.18.4.2	18-Oct-2007	yamt	sync with head.
1.18.4.1	14-Oct-2007	yamt	sync with head.
1.18.2.3	27-Oct-2007	yamt	sync with head.
1.18.2.2	03-Sep-2007	yamt	sync with head.
1.18.2.1	01-Sep-2007	yamt	file genfs.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:29 +0000
1.17	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.16	16-Nov-2008	pooka	explicitly include <sys/buf.h> since we explicitly use it
1.15	14-Nov-2008	pooka	Clearly state that VOP_BMAP panic in putpages is because I'm a lazy bum. (although I can't really think of any scenario where VOP_BMAP could legally fail)
1.14	30-Sep-2008	pooka	branches: 1.14.2; 1.14.4; When paging in data, do not try to read past "disk" EOF. This fixes reads for file systems which are not bound by such mundane limitations as block size (example: nfs).
1.13	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.12	20-Jul-2008	pooka	assert -> KASSERT
1.11	15-Jul-2008	pooka	Honor PGO_FREE in putpages. Fixes cp-then-rm ukfs panic reported by Arnaud Ysmal.
1.10	04-Jun-2008	ad	branches: 1.10.2; 1.10.4; Make it build.
1.9	14-May-2008	reinoud	Make rump compile UDF correctly. Note that it won't work though since rump needs to be compiled with thread support.
1.8	02-Jan-2008	pooka	branches: 1.8.6; 1.8.8; 1.8.10; 1.8.12; fix vmlocking2 fallout: * I heard a wild rumor that vp_interlock is a mutex these days (hi ad!) * init new locks (hi ad) * observe that with simple_locks only deadlocks would be caught while releasing unlocked locks would go unnoticed. make locking work (hi pooka)
1.7	02-Jan-2008	ad	Merge vmlocking2 to head.
1.6	07-Nov-2007	pooka	branches: 1.6.2; 1.6.6; Execute I/O in a separate thread for async I/O where previously everything was written/read in caller context. Also, make the "kernel" lock recursive. It works better that way ...
1.5	06-Nov-2007	pooka	branches: 1.5.2; yank out extra debug printf
1.4	06-Nov-2007	pooka	Sprinkle some more locking, especially to the vm. Due to some additional fixes, it's now possible to run file systems with spinlocks actually enabled. The genfs_putpages() locking is still working only due to greater powers, but I'll eventually get around to fixing it.
1.3	04-Nov-2007	pooka	branches: 1.3.2; Allocate buf using getiobuf() instead of abusing the stack.
1.2	31-Oct-2007	pooka	branches: 1.2.2; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.1	17-Oct-2007	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; Compile most genfs routines directly out of the kernel sources. Move special I/O routines to genfs_io.c to mirror kernel naming.
1.1.8.4	21-Jan-2008	yamt	sync with head
1.1.8.3	15-Nov-2007	yamt	sync with head.
1.1.8.2	27-Oct-2007	yamt	sync with head.
1.1.8.1	17-Oct-2007	yamt	file genfs_io.c was added on branch yamt-lazymbuf on 2007-10-27 11:36:22 +0000
1.1.6.2	23-Oct-2007	ad	Sync with head.
1.1.6.1	17-Oct-2007	ad	file genfs_io.c was added on branch vmlocking on 2007-10-23 20:36:44 +0000
1.1.4.2	18-Oct-2007	yamt	sync with head.
1.1.4.1	17-Oct-2007	yamt	file genfs_io.c was added on branch yamt-x86pmap on 2007-10-18 08:33:14 +0000
1.1.2.1	13-Nov-2007	bouyer	Sync with HEAD
1.2.2.6	11-Nov-2007	joerg	Sync with HEAD.
1.2.2.5	06-Nov-2007	joerg	Sync with HEAD.
1.2.2.4	04-Nov-2007	jmcneill	Sync with HEAD.
1.2.2.3	02-Nov-2007	joerg	Remove the rest of the unintentional diff in sys/rump.
1.2.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.2.2.1	31-Oct-2007	joerg	file genfs_io.c was added on branch jmcneill-pm on 2007-10-31 23:14:16 +0000
1.3.2.2	18-Feb-2008	mjf	Sync with HEAD.
1.3.2.1	19-Nov-2007	mjf	Sync with HEAD.
1.5.2.4	09-Jan-2008	matt	sync with HEAD
1.5.2.3	08-Nov-2007	matt	sync with -HEAD
1.5.2.2	06-Nov-2007	matt	sync with HEAD
1.5.2.1	06-Nov-2007	matt	file genfs_io.c was added on branch matt-armv6 on 2007-11-06 23:34:35 +0000
1.6.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.6.2.1	28-Dec-2007	ad	Make rump build.
1.8.12.3	10-Oct-2008	skrll	Sync with HEAD.
1.8.12.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.8.12.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.8.10.2	04-May-2009	yamt	sync with head.
1.8.10.1	16-May-2008	yamt	sync with head.
1.8.8.2	17-Jun-2008	yamt	sync with head.
1.8.8.1	18-May-2008	yamt	sync with head.
1.8.6.5	17-Jan-2009	mjf	Sync with HEAD.
1.8.6.4	05-Oct-2008	mjf	Sync with HEAD.
1.8.6.3	28-Sep-2008	mjf	Sync with HEAD.
1.8.6.2	05-Jun-2008	mjf	Sync with HEAD. Also fix build.
1.8.6.1	02-Jun-2008	mjf	Sync with HEAD.
1.10.4.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.10.4.1	19-Oct-2008	haad	Sync with HEAD.
1.10.2.3	31-Jul-2008	simonb	Sync with head.
1.10.2.2	21-Jul-2008	simonb	Sync with head.
1.10.2.1	18-Jul-2008	simonb	Sync with head.
1.14.4.1	16-Jan-2009	snj	Pull up the following revision(s) (requested by pooka in ticket #253): sys/rump/librump/rumpvfs/genfs_io.c: revision 1.2 via patch Make sure we write a positive length of data.
1.14.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.17	30-Apr-2020	riastradh	No need for a lock around rnd_add_data any more.
1.16	30-Apr-2020	riastradh	rnd_attach_source calls the callback itself now. No need for every driver to explicitly call it to prime the pool. Eliminate now-unused <sys/rndpool.h>.
1.15	21-May-2016	riastradh	Actually get as many bytes as requested from rumpuser_random. rumpuser_random is limited to 32 bytes at a time -- which would be reasonable, except that there are too many buffers in the way between entropy sources and users of the entropy pool. Partial fix for PR kern/51135.
1.14	17-Feb-2016	riastradh	Need <sys/mutex.h> for mutex(9).
1.13	17-Feb-2016	riastradh	Caller must have exclusive access to rndsource for rnd_add_data(_sync).
1.12	17-Feb-2016	riastradh	Make hyperentropy rndsource work synchronously, again. This time for real! crosses fingers
1.11	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.10	21-Apr-2015	riastradh	Revert previous -- a little too quick on the commit trigger. Ran some tests but not enough. There is a deadlock against myself: rndsink_request acquires rndsinks_lock -> rnd_getmore -> hyperentropy feedrandom (or any other rndsource callback) -> rnd_add_data -> rndsinks_distribute acquires rndsinks_lock Need to break this cycle before rndsource callbacks can invoke rnd_add_data.
1.9	21-Apr-2015	riastradh	Restore simplicity of rump hyperentropy `hardware RNG'.
1.8	13-Apr-2015	riastradh	Convert remaining MI <sys/rnd.h> stragglers. Many MD ones left.
1.7	15-Aug-2014	riastradh	branches: 1.7.2; 1.7.4; <sys/param.h> comes first, per /usr/share/misc/style.
1.6	15-Aug-2014	justin	Fix header ordering
1.5	15-Aug-2014	justin	add sys/atomic.h and order headers correctly
1.4	15-Aug-2014	riastradh	Call rnd_add_data asynchronously for the rump hyperentropy callback. Avoids recursion rnd_getmore -> rnd_add_data -> rnd_getmore, which is silly but I don't have time to fix it properly right now.
1.3	10-Aug-2014	tls	branches: 1.3.2; Merge tls-earlyentropy branch into HEAD.
1.2	17-Jan-2014	pooka	branches: 1.2.2; 1.2.4; 1.2.6; don't use temp buffer from the stack, fix the constants
1.1	17-Jan-2014	pooka	Use subr_cprng.c instead of stub implementation. Rijndael migrates from rumpkern_crypto to rumpkern due to it being mandatory for cprng.
1.2.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.6.1	17-Jan-2014	yamt	file hyperentropy.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.4.2	18-May-2014	rmind	sync with head
1.2.4.1	17-Jan-2014	rmind	file hyperentropy.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.2.2.1	07-Apr-2014	tls	Be a little more clear and consistent about harvesting entropy from devices: 1) deprecate RND_FLAG_NO_ESTIMATE 2) define RND_FLAG_COLLECT_TIME, RND_FLAG_COLLECT_VALUE 3) define RND_FLAG_ESTIMATE_TIME, RND_FLAG_ESTIMATE_VALUE 4) define RND_FLAG_DEFAULT: RND_FLAG_COLLECT_TIME\| RND_FLAG_COLLECT_VALUE\|RND_FLAG_ESTIMATE_TIME 5) Make entropy harvesting from environmental sensors a little more generic and remove it from individual sensor drivers. 6) Remove individual open-coded delta-estimators for values from a few places in the tree (uvm, environmental drivers). 7) 0 -> RND_FLAG_DEFAULT, actually gather entropy from various drivers that had stubbed out code, other minor cleanups.
1.3.2.1	18-Aug-2014	martin	Pull up following revision(s) (requested by riastradh in ticket #35): sys/rump/librump/rumpkern/hyperentropy.c: revision 1.6 sys/rump/librump/rumpkern/hyperentropy.c: revision 1.7 sys/rump/librump/rumpkern/hyperentropy.c: revision 1.4 sys/rump/librump/rumpkern/hyperentropy.c: revision 1.5 Call rnd_add_data asynchronously for the rump hyperentropy callback. Avoids recursion rnd_getmore -> rnd_add_data -> rnd_getmore, which is silly but I don't have time to fix it properly right now. add sys/atomic.h and order headers correctly Fix header ordering <sys/param.h> comes first, per /usr/share/misc/style.
1.7.4.3	29-May-2016	skrll	Sync with HEAD
1.7.4.2	19-Mar-2016	skrll	Sync with HEAD
1.7.4.1	06-Jun-2015	skrll	Sync with HEAD
1.7.2.3	03-Dec-2017	jdolecek	update from HEAD
1.7.2.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.7.2.1	15-Aug-2014	tls	file hyperentropy.c was added on branch tls-maxphys on 2014-08-20 00:04:40 +0000
1.3	23-Apr-2015	pooka	g/c the never-used and never-useful hyperstubs.c
1.2	30-Apr-2013	pooka	branches: 1.2.4; 1.2.12; 1.2.16; Stub out anonmmap too. This is a clever trick to enable me to avoid having to document that interface. I seriously doubt it's relevant beyond a POSIX env where it's required by the proplib client-side implementation which expects it can do munmap() on a return value from a proplib call.
1.1	30-Apr-2013	pooka	weak stubs for optional hypercalls
1.2.16.1	06-Jun-2015	skrll	Sync with HEAD
1.2.12.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.12.1	30-Apr-2013	yamt	file hyperstubs.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.4.3	03-Dec-2017	jdolecek	update from HEAD
1.2.4.2	23-Jun-2013	tls	resync from head
1.2.4.1	30-Apr-2013	tls	file hyperstubs.c was added on branch tls-maxphys on 2013-06-23 06:20:28 +0000
1.2	16-Dec-2009	pooka	update to newnewvers.sh usage
1.1	16-Dec-2009	pooka	Generate vers.c and include it in the kernel component.
1.57	06-Apr-2025	riastradh	rump: Set up the softint CPU bouncer only once, not once per CPU. This is used for softint_schedule_cpu to schedule softints on other CPUs. There is one global lock, and one global condition variable, and really there only needs to be one thread to handle the requests. Without this change, we reinitialize the lock and condition variable, leaking them (and possibly leave some threads confused if they are currently taking the lock or waiting on the condition variable as they get reinitialized). Leak found by lsan while investigating: PR misc/59252: tests/rump/rumpkern/t_sp:sigsafe: out of memory
1.56	01-Nov-2020	christos	branches: 1.56.24; PR/55664: Ruslan Nikolaev: Fix: 1. A race condition (bug) in sys/rump/librump/rumpkern/intr.c since rumpuser_cv_signal() is called without holding a mutex 2. sleepq is implemented using a single (global) conditional variable; that should be done per each sleepq separately
1.55	16-Dec-2019	ad	branches: 1.55.8; - Extend the per-CPU counters matt@ did to include all of the hot counters in UVM, excluding uvmexp.free, which needs special treatment and will be done with a separate commit. Cuts system time for a build by 20-25% on a 48 CPU machine w/DIAGNOSTIC. - Avoid 64-bit integer divide on every fault (for rnd_add_uint32).
1.54	26-Jan-2016	pooka	branches: 1.54.18; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.53	16-Aug-2015	pooka	Don't use KASSERT() to test for external return values, use panic() from Robert Millan <rmh@freebsd.org>
1.52	22-Apr-2015	pooka	Apparently not all ports define struct clockframe in cpu.h, so we cannot provide our definition that way. Instead, generate the struct clockframe passed to hardclock() in MD code.
1.51	22-Apr-2015	pooka	Include kern_clock.c in rump kernels.
1.50	21-Apr-2015	pooka	Use hardclock_ticks instead of a homegrown variable. ... not that I understand how various kernel algorithms can work after enough uptime with hardclock_ticks being a signed int.
1.49	16-Apr-2015	pooka	"extern int hz" was written in a very aesthetically pleasing way in this file, but let's just be happy with the sys/kernel.h style of writing it.
1.48	14-Jan-2015	pooka	Execute softints in the order in which they are scheduled (per level).
1.47	14-Jan-2015	pooka	Implement softint_schedule_cpu() for rump kernels. While distributing processing all over the place is not relevant for high-performance rump kernel I/O stacks (and downright counterproductive), the mechanism is used e.g. to reach a quiescent state when detaching an interface, and therefore a semantically correct implementation is required. Fixes at least an uncommon race in the ifconfig destroy case. reported & patch tested by Justin Cormack.
1.46	22-Jun-2014	pooka	branches: 1.46.4; Initialize cpu_softcpu before creating softint threads. Fixes things with rump kernel hypervisors which wrap the thread creation hypercall. pointed out by Justin Cormack
1.45	09-Jun-2014	rmind	Restore the assert in RUMP's softint_schedule_cpu() and just ensure curcpu() in the caller.
1.44	08-Jun-2014	rmind	RUMP's softint_schedule_cpu: comment out an assert for now.
1.43	05-Jun-2014	rmind	librump: add kpreempt_disabled(9) and softint_schedule_cpu(9).
1.42	11-Nov-2013	pooka	branches: 1.42.2; Avoid calling curcpu() when we know the result is constant.
1.41	11-Nov-2013	pooka	Defer softint thread creation to first softint_establish() for that level. Speeds up rump kernel bootstrap and saves memory -- very rarely are all softint levels in a rump kernel used.
1.40	02-May-2013	pooka	branches: 1.40.4; Ok, maybe using int64 for nanoseconds in the (sec,nsec) tuple was a bit too future-proof. I think long is enough there (let's just hope nobody redefines "nano"). Also, make seconds signed just in case someone wants their clock to be in 1901.
1.39	30-Apr-2013	pooka	Flip parameter order in the clock hypercalls to make them consistent with everything else wrt in/out parameters.
1.38	28-Apr-2013	pooka	Improve the time-related hypercalls so that's it's possible to sleep until an absolute time on the host's monotonic clock (should something like that be supported).
1.37	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.36	21-Mar-2011	pooka	branches: 1.36.4; 1.36.14; Update copyright statements. no functional change.
1.35	01-Dec-2010	pooka	branches: 1.35.2; Track lwp as the rumpuser mutex owner instead of pthread_t (this is done in rumpuser for simplicity, since on the kernel side things we assume we have only one pointer of space). As a side-effect, we can no longer know if the current thread is holding on to a mutex locked without curlwp context (basically all mutexes inited outside of mutex_init()). The only thing that called rumpuser_mutex_held() for a non-kmutex was the giant lock. So, instead implement recursive locking for the giant lock in the rump kernel and get rid of the now-unused recursive pthread mutex in the hypercall interface.
1.34	07-Sep-2010	pooka	Allocate softint vectors for the final number of CPUs, not the number currently attached. Deals with a SNAFU in my commit earlier today which would cause softints established early to lack a softint context on non-bootstrap CPUs.
1.33	07-Sep-2010	pooka	update comments. no code change.
1.32	15-Aug-2010	pooka	Implement softints properly: they need to have a schedulable entity per cpu.
1.31	10-Aug-2010	pooka	Don't create the percpu clock interrupt threads as softint threads because they aren't softint threads. This fixes callouts in situations where there is nothing else happening in the rump kernel (i.e. no threads executed which would trigger the softints when they unschedule).
1.30	10-Aug-2010	pooka	Use correct indices for clock threads and more descriptive ones for the softint threads.
1.29	18-May-2010	martin	Add missing include
1.28	18-May-2010	pooka	Make it possible to use the scheduler lock as the rumpuser condvar interlock. This is applicable in cases where the actual interlock is the CPU the currently running thread is scheduled on. Borrowing the scheduler lock as the mutex mandated by pthread_cond_wait() does away with need to have an additional mutex. This both optimizes runtime execution and simplifies code, as the extra lock typically lead to quite some trickeries to avoid the dungeon collapsing due to zaps from the wand of deadlock.
1.27	12-May-2010	pooka	fix inversion: advance clock on cpu0, not the complement of cpu0
1.26	28-Apr-2010	pooka	Fix snafu which caused the clock to travel lightspeed.
1.25	27-Apr-2010	pooka	Fix multiple virtual cpu support. ... or at least on x86. CPU_INFO_FOREACH() still isn't MI, and I don't want to support 2^n different versions.
1.24	14-Apr-2010	pooka	Include kern_tc and use a timecounter driver instead of homerolled kern_tc implementation.
1.23	05-Dec-2009	pooka	branches: 1.23.2; 1.23.4; Cast Oh Kath Ra once every second.
1.22	01-Dec-2009	pooka	Almost there for virtual CPU MP support: * support bound kernel threads * bind softint threads to specific virtual cpus + remove now-unnecessary locks from softint code Now, if we only had MI CPU_INFO_FOREACH() .... (hi rmind ;)
1.21	11-Nov-2009	pooka	Make rumpuser_cv_timedwait take two int64's instead timespec to uncouple it from the timespec layout. Also, change return value to zero for "timeout didn't expire" and non-zero for "timeout expired". This decouples the interface from errno assignments.
1.20	09-Nov-2009	pooka	Hash out soft interrupts to be a little closer to real softints: * split them into levels * allow only one per level to be active at a time * fire softints only when we are unscheduling from a CPU instead of immediately in softint_schedule(). this will later morph into return from interrupt, but that part isn't done yet.
1.19	06-Nov-2009	pooka	lie that we are never in a softintr (i.e. add stub)
1.18	19-Sep-2009	pooka	arrr, implement softint_disestablish(). this code be needin' an enema, matey.
1.17	26-Apr-2009	pooka	fix uninitialized
1.16	26-Apr-2009	pooka	Fix getnano/microuptime to report actual uptime.
1.15	27-Feb-2009	pooka	decouple rumpuser gettime from struct timeval
1.14	07-Feb-2009	pooka	branches: 1.14.2; Make the clock interrupt tick based on absolute time instead of relative time. This prevents drifting. Also, keep track of time within userspace, so we do not have to make a syscall to get the clock value. This is approximately 7 times cheaper, but on the negative side is limited to the clock interrupt frequency.
1.13	04-Feb-2009	pooka	Create the clock interrupt and soft interrupt workers as MPSAFE
1.12	13-Jan-2009	pooka	misc cleanup, mainly header polish
1.11	18-Dec-2008	pooka	__KERNEL_RCSID
1.10	18-Dec-2008	pooka	Separate the timer thread and soft interrut workers. Use a dynamic size pool of workers to make sure there are enough for processing the scheduled soft interrupts.
1.9	30-Oct-2008	christos	fix compilation and lint warnings.
1.8	10-Oct-2008	pooka	branches: 1.8.2; Provide time_uptime and push it forward every now and then if we happen to have the timer thread. rump uptime - woohoo.
1.7	10-Oct-2008	pooka	fix brainfart: kthread_create() sets curlwp
1.6	10-Oct-2008	pooka	Support callouts and call callout_hardclock() from the timer interrupt thread. The sleepq implementation required for callouts is horrible, kludged only for callouts, and generally unacceptable. It needs revisiting, but I'm not sure yet should rump or kern_timeout be improved. It's almost untested as of now, but committing this will give me some maneuvering space while letting application compile.
1.5	09-Oct-2008	pooka	Rewrite interrupts to provide better softintr support, i.e. not execute them simply in the context of the scheduling code, as this does not work for all applications (e.g. networking soft interrupts). Rather, schedule them and execute them from a separate context. Also provide a timer which for now executes just hardclock_callout() (well, at least after callouts are included in librump, which is soon).
1.4	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.3	28-Apr-2008	martin	branches: 1.3.2; 1.3.4; 1.3.6; Remove clause 3 and 4 from TNF licenses
1.2	02-Jan-2008	ad	branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8; 1.2.14; 1.2.16; 1.2.18; Merge vmlocking2 to head.
1.1	28-Dec-2007	ad	branches: 1.1.2; file intr.c was initially added on branch vmlocking2.
1.1.2.1	28-Dec-2007	ad	Make rump build.
1.2.18.5	09-Oct-2010	yamt	sync with head
1.2.18.4	11-Aug-2010	yamt	sync with head.
1.2.18.3	11-Mar-2010	yamt	sync with head
1.2.18.2	04-May-2009	yamt	sync with head.
1.2.18.1	16-May-2008	yamt	sync with head.
1.2.16.1	18-May-2008	yamt	sync with head.
1.2.14.3	17-Jan-2009	mjf	Sync with HEAD.
1.2.14.2	28-Sep-2008	mjf	Sync with HEAD.
1.2.14.1	02-Jun-2008	mjf	Sync with HEAD.
1.2.8.2	18-Feb-2008	mjf	Sync with HEAD.
1.2.8.1	02-Jan-2008	mjf	file intr.c was added on branch mjf-devfs on 2008-02-18 21:07:22 +0000
1.2.6.2	21-Jan-2008	yamt	sync with head
1.2.6.1	02-Jan-2008	yamt	file intr.c was added on branch yamt-lazymbuf on 2008-01-21 09:47:42 +0000
1.2.4.2	09-Jan-2008	matt	sync with HEAD
1.2.4.1	02-Jan-2008	matt	file intr.c was added on branch matt-armv6 on 2008-01-09 01:58:00 +0000
1.2.2.2	02-Jan-2008	bouyer	Sync with HEAD
1.2.2.1	02-Jan-2008	bouyer	file intr.c was added on branch bouyer-xeni386 on 2008-01-02 21:57:53 +0000
1.3.6.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.3.6.1	19-Oct-2008	haad	Sync with HEAD.
1.3.4.1	31-Jul-2008	simonb	Sync with head.
1.3.2.2	10-Oct-2008	skrll	Sync with HEAD.
1.3.2.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.8.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.8.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.8.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.14.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.23.4.3	21-Apr-2011	rmind	sync with head
1.23.4.2	05-Mar-2011	rmind	sync with head
1.23.4.1	30-May-2010	rmind	sync with head
1.23.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.23.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.23.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.35.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.36.14.3	03-Dec-2017	jdolecek	update from HEAD
1.36.14.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.36.14.1	23-Jun-2013	tls	resync from head
1.36.4.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.40.4.1	18-May-2014	rmind	sync with head
1.42.2.1	10-Aug-2014	tls	Rebase.
1.46.4.4	19-Mar-2016	skrll	Sync with HEAD
1.46.4.3	22-Sep-2015	skrll	Sync with HEAD
1.46.4.2	06-Jun-2015	skrll	Sync with HEAD
1.46.4.1	06-Apr-2015	skrll	Sync with HEAD
1.54.18.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.55.8.1	14-Dec-2020	thorpej	Sync w/ HEAD.
1.56.24.1	02-Aug-2025	perseant	Sync with HEAD
1.2	21-Aug-2007	pooka	Implement credentials. Access control is now similar to if the file system were run in the kernel.
1.1	05-Aug-2007	pooka	branches: 1.1.2; 1.1.4; 1.1.6; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.6.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.6.1	05-Aug-2007	pooka	file kauth_stub.c was added on branch matt-mips64 on 2007-08-05 22:28:09 +0000
1.1.4.3	09-Oct-2007	ad	Sync with head.
1.1.4.2	20-Aug-2007	ad	Sync with HEAD.
1.1.4.1	05-Aug-2007	ad	file kauth_stub.c was added on branch vmlocking on 2007-08-20 22:07:27 +0000
1.1.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.1.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.1.2.1	05-Aug-2007	skrll	file kauth_stub.c was added on branch nick-csl-alignment on 2007-08-15 13:50:37 +0000
1.11	23-Jun-2023	riastradh	rump: KASSERT(x && y) -> KASSERT(x); KASSERT(y) Add some KASSERTMSG while here.
1.10	07-Jul-2016	msaitoh	KNF. Remove extra spaces. No functional change.
1.9	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.8	30-Apr-2013	pooka	branches: 1.8.12; Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.7	29-Apr-2013	pooka	remove routine not meant to be committed
1.6	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.5	09-Oct-2012	pooka	Gather some statistics about biglock usage.
1.4	20-Feb-2012	mrg	branches: 1.4.2; add a _kernel_locked_p().
1.3	01-Dec-2010	pooka	branches: 1.3.8; 1.3.12; 1.3.14; 1.3.18; 1.3.20; Track lwp as the rumpuser mutex owner instead of pthread_t (this is done in rumpuser for simplicity, since on the kernel side things we assume we have only one pointer of space). As a side-effect, we can no longer know if the current thread is holding on to a mutex locked without curlwp context (basically all mutexes inited outside of mutex_init()). The only thing that called rumpuser_mutex_held() for a non-kmutex was the giant lock. So, instead implement recursive locking for the giant lock in the rump kernel and get rid of the now-unused recursive pthread mutex in the hypercall interface.
1.2	18-May-2010	pooka	branches: 1.2.2; 1.2.4; 1.2.6; Namespace rump-only kernel biglock routines appropriately. No functional change.
1.1	18-May-2010	pooka	Move routines related to kernel locking and scheduling from locks.c to klock.c. No functional change.
1.2.6.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.2.6.1	18-May-2010	uebayasi	file klock.c was added on branch uebayasi-xip on 2010-08-17 06:48:01 +0000
1.2.4.2	11-Aug-2010	yamt	sync with head.
1.2.4.1	18-May-2010	yamt	file klock.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:06 +0000
1.2.2.3	05-Mar-2011	rmind	sync with head
1.2.2.2	30-May-2010	rmind	sync with head
1.2.2.1	18-May-2010	rmind	file klock.c was added on branch rmind-uvmplock on 2010-05-30 05:18:06 +0000
1.3.20.1	18-Jun-2014	msaitoh	Pull up following revision(s) (requested by bouyer in ticket #1067): sys/dist/ipf/netinet/ip_fil_netbsd.c 1.9 via patch sys/net/if_ethersubr.c 1.197 via patch sys/net/if_loop.c 1.77 via patch sys/net/if_vlan.c 1.70 via patch sys/netinet/if_arp.c 1.158 sys/netinet/ip_carp.c 1.54 via patch sys/netinet6/ip6_flow.c 1.23 via patch sys/netinet6/nd6.c 1.150 via patch sys/rump/librump/rumpkern/klock.c 1.4 Make sure *(if_output)() is called with KERNEL_LOCK held to avoid mbuf leak. See http://mail-index.netbsd.org/tech-net/2014/04/09/msg004511.html for details. For netinet6, the problem report, fix and test were done by njoly@ on current-users@
1.3.18.1	18-Jun-2014	msaitoh	Pull up following revision(s) (requested by bouyer in ticket #1067): sys/dist/ipf/netinet/ip_fil_netbsd.c 1.9 via patch sys/net/if_ethersubr.c 1.197 via patch sys/net/if_loop.c 1.77 via patch sys/net/if_vlan.c 1.70 via patch sys/netinet/if_arp.c 1.158 sys/netinet/ip_carp.c 1.54 via patch sys/netinet6/ip6_flow.c 1.23 via patch sys/netinet6/nd6.c 1.150 via patch sys/rump/librump/rumpkern/klock.c 1.4 Make sure *(if_output)() is called with KERNEL_LOCK held to avoid mbuf leak. See http://mail-index.netbsd.org/tech-net/2014/04/09/msg004511.html for details. For netinet6, the problem report, fix and test were done by njoly@ on current-users@
1.3.14.1	03-Jun-2014	msaitoh	Pull up following revision(s) (requested by bouyer in ticket #1067): sys/dist/ipf/netinet/ip_fil_netbsd.c 1.9 via patch sys/net/if_ethersubr.c 1.197 via patch sys/net/if_loop.c 1.77 via patch sys/net/if_vlan.c 1.70 via patch sys/netinet/if_arp.c 1.158 sys/netinet/ip_carp.c 1.54 via patch sys/netinet6/ip6_flow.c 1.23 via patch sys/netinet6/nd6.c 1.150 via patch sys/rump/librump/rumpkern/klock.c 1.4 Make sure *(if_output)() is called with KERNEL_LOCK held to avoid mbuf leak. See http://mail-index.netbsd.org/tech-net/2014/04/09/msg004511.html for details. For netinet6, the problem report, fix and test were done by njoly@ on current-users@
1.3.12.1	20-Feb-2012	mrg	pull across from -current: >add a _kernel_locked_p().
1.3.8.3	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.3.8.2	30-Oct-2012	yamt	sync with head
1.3.8.1	17-Apr-2012	yamt	sync with head
1.4.2.3	03-Dec-2017	jdolecek	update from HEAD
1.4.2.2	23-Jun-2013	tls	resync from head
1.4.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.8.12.2	09-Jul-2016	skrll	Sync with HEAD
1.8.12.1	19-Mar-2016	skrll	Sync with HEAD
1.3	20-Feb-2020	joerg	The global offset table is spelled .TOC. on PPC64, so preserve that symbol.
1.2	25-Apr-2014	pooka	branches: 1.2.28; 1.2.34; gardenize: function calls over #ifdefs
1.1	26-Apr-2010	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.14; 1.1.24; 1.1.28; 1.1.38; Implement kobj_renamespace() for rump. Support for a few archs is missing, but that doesn't really matter, since they are living in their own "everything is a macro" happyland and don't support the native kernel ABI anyway.
1.1.38.1	10-Aug-2014	tls	Rebase.
1.1.28.1	18-May-2014	rmind	sync with head
1.1.24.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.14.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.2	11-Aug-2010	yamt	sync with head.
1.1.6.1	26-Apr-2010	yamt	file kobj_rename.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:06 +0000
1.1.4.2	30-May-2010	rmind	sync with head
1.1.4.1	26-Apr-2010	rmind	file kobj_rename.c was added on branch rmind-uvmplock on 2010-05-30 05:18:06 +0000
1.1.2.2	30-Apr-2010	uebayasi	Sync with HEAD.
1.1.2.1	26-Apr-2010	uebayasi	file kobj_rename.c was added on branch uebayasi-xip on 2010-04-30 14:44:30 +0000
1.2.34.1	29-Feb-2020	ad	Sync with head.
1.2.28.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.3	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.2	01-Jan-2009	pooka	branches: 1.2.2; 1.2.4; 1.2.8; 1.2.20; 1.2.30; 1.2.34; fix format
1.1	01-Jan-2009	pooka	missed cvs add in previous commit: Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.2.34.1	18-May-2014	rmind	sync with head
1.2.30.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.20.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.8.2	04-May-2009	yamt	sync with head.
1.2.8.1	01-Jan-2009	yamt	file kobj_stubs.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:29 +0000
1.2.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.2.4.1	01-Jan-2009	skrll	file kobj_stubs.c was added on branch nick-hppapmap on 2009-01-19 13:20:25 +0000
1.2.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.2.2.1	01-Jan-2009	mjf	file kobj_stubs.c was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.4	31-Oct-2007	pooka	Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.3	11-Oct-2007	ad	branches: 1.3.2; Merge from vmlocking: - G/C spinlockmgr() and simple_lock debugging. - Always include the kernel_lock functions, for LKMs. - Slightly improved subr_lockdebug code. - Keep sizeof(struct lock) the same if LOCKDEBUG.
1.2	10-Oct-2007	ad	transferlockers() is gone.
1.1	26-Aug-2007	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; split implemented lock stuff out of lock_stub.c into lock.c
1.1.10.2	09-Oct-2007	ad	Sync with head.
1.1.10.1	26-Aug-2007	ad	file lock.c was added on branch vmlocking on 2007-10-09 13:45:04 +0000
1.1.8.1	14-Oct-2007	yamt	sync with head.
1.1.6.4	15-Nov-2007	yamt	sync with head.
1.1.6.3	27-Oct-2007	yamt	sync with head.
1.1.6.2	03-Sep-2007	yamt	sync with head.
1.1.6.1	26-Aug-2007	yamt	file lock.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:29 +0000
1.1.4.2	03-Sep-2007	skrll	Sync with HEAD.
1.1.4.1	26-Aug-2007	skrll	file lock.c was added on branch nick-csl-alignment on 2007-09-03 10:23:55 +0000
1.1.2.1	06-Nov-2007	matt	sync with HEAD
1.3.2.1	13-Nov-2007	bouyer	Sync with HEAD
1.10	31-Oct-2007	pooka	Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.9	22-Sep-2007	pooka	branches: 1.9.4; add rw_tryenter() and rw_lock_held(), inspired by Adam Hamsik
1.8	26-Aug-2007	pooka	branches: 1.8.2; 1.8.4; split implemented lock stuff out of lock_stub.c into lock.c
1.7	26-Aug-2007	pooka	very rudimentary recursive lock support
1.6	16-Aug-2007	pooka	branches: 1.6.2; tweaks
1.5	12-Aug-2007	pooka	branches: 1.5.2; track lockmgr lock status. makes lfs work again
1.4	09-Aug-2007	pooka	fool some KASSERTs
1.3	09-Aug-2007	pooka	Add some stubs for lfs.
1.2	07-Aug-2007	pooka	mutex_pwned - needed for kassert
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file lock_stub.c was added on branch matt-mips64 on 2007-08-05 22:28:09 +0000
1.5.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.5.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.5.2.1	12-Aug-2007	skrll	file lock_stub.c was added on branch nick-csl-alignment on 2007-08-15 13:50:38 +0000
1.6.2.3	09-Oct-2007	ad	Sync with head.
1.6.2.2	20-Aug-2007	ad	Sync with HEAD.
1.6.2.1	16-Aug-2007	ad	file lock_stub.c was added on branch vmlocking on 2007-08-20 22:07:28 +0000
1.8.4.4	15-Nov-2007	yamt	sync with head.
1.8.4.3	27-Oct-2007	yamt	sync with head.
1.8.4.2	03-Sep-2007	yamt	sync with head.
1.8.4.1	26-Aug-2007	yamt	file lock_stub.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:30 +0000
1.8.2.1	06-Nov-2007	matt	sync with HEAD
1.9.4.1	13-Nov-2007	bouyer	Sync with HEAD
1.88	02-Nov-2023	martin	Back out the following revisions on behalf of core: sys/sys/lwp.h: revision 1.228 sys/sys/pipe.h: revision 1.40 sys/kern/uipc_socket.c: revision 1.306 sys/kern/kern_sleepq.c: revision 1.84 sys/rump/librump/rumpkern/locks_up.c: revision 1.13 sys/kern/sys_pipe.c: revision 1.165 usr.bin/fstat/fstat.c: revision 1.119 sys/rump/librump/rumpkern/locks.c: revision 1.87 sys/ddb/db_xxx.c: revision 1.78 sys/ddb/db_command.c: revision 1.187 sys/sys/condvar.h: revision 1.18 sys/ddb/db_interface.h: revision 1.42 sys/sys/socketvar.h: revision 1.166 sys/kern/uipc_syscalls.c: revision 1.209 sys/kern/kern_condvar.c: revision 1.60 Add cv_fdrestart() [...] Use cv_fdrestart() to implement fo_restart. Simplify/streamline pipes a little bit [...] This changes have caused regressions and need to be debugged. The cv_fdrestart() addition needs more discussion.
1.87	13-Oct-2023	ad	Add cv_fdrestart() (better name suggestions welcome): Like cv_broadcast(), but make any LWPs that share the same file descriptor table as the caller return ERESTART when resuming. Used to dislodge LWPs waiting for I/O that prevent a file descriptor from being closed, without upsetting access to the file (not descriptor) made from another direction.
1.86	16-Jul-2023	riastradh	rump: Fix comment to reflect l_private -> l_sched.info. Comment was misspelled `l->private', hence didn't come up in grep.
1.85	16-Jul-2023	riastradh	rump: Use l_sched.info, not l_private, for cv waits. - l_sched is scheduler-private, used only by sched_m2.c, should be safe - l_private is lwp-private, used by tls in user threads, would like to reuse for kthreads too
1.84	12-Apr-2023	riastradh	kern: Nix mutex_owner. There is no valid reason to use this except in assertions of the form KASSERT(mutex_owner(lock) == curlwp), which is more obviously spelled as KASSERT(mutex_owned(lock)). Exception: There's one horrible kludge in zfs that abuses this, which should be eliminated. XXX kernel revbump -- deleting symbol PR kern/47114
1.83	26-Oct-2022	riastradh	rwlock(9): Nix extern _rw_init in .c; use sys/rwlock.h.
1.82	26-Oct-2022	riastradh	mutex(9): Properly declare _mutex_init in sys/mutex.h.
1.81	22-Feb-2020	ad	rump rw_lock_op
1.80	05-Feb-2018	ozaki-r	branches: 1.80.4; 1.80.10; Obtain proper initialized addresses of locks allocated by mutex_obj_alloc or rw_obj_alloc Initialized addresses of locks allocated by mutex_obj_alloc or rw_obj_alloc were not useful because the addresses were mutex_obj_alloc or rw_obj_alloc itself. What we want to know are callers of them. (forgot to commit)
1.79	27-Dec-2017	ozaki-r	rump: check if the mutex is surely owned by the caller in mutex_exit Unlocking a not-owned mutex wasn't detected well (it could detect if the mutex is not held by anyone but that's not enough). Let's check it (the check is the same as normal kernel's mutex). If LOCKDEBUG is enabled, give the check over LOCKDEBUG because it can provide better debugging information.
1.78	27-Dec-2017	ozaki-r	Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels.
1.77	27-Dec-2017	ozaki-r	Tweak LOCKDEBUG macros (NFC)
1.76	25-Dec-2017	ozaki-r	Apply C99-style struct initialization to lockops_t
1.75	17-Sep-2017	kre	As if rump wasn't constipated enough... Add some more blockages, hopefully allow the build to find a path all the way to the other end...
1.74	01-May-2017	pgoyette	branches: 1.74.2; Introduce mutex_ownable() to determine if it is possible for the current process to acquire a mutex.
1.73	27-Jan-2017	ozaki-r	branches: 1.73.4; Unbreak builds of rump libraries with RUMP_LOCKDEBUG
1.72	26-Jan-2016	pooka	branches: 1.72.2; 1.72.4; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.71	30-Sep-2015	ozaki-r	Add lockdebug_barrier ok pooka@
1.70	30-Sep-2015	ozaki-r	Remove redundant UNLOCKED and LOCKED UNLOCKED and LOCKED are done inside mutex_exit and mutex_enter respectively so we don't need to do them outside mutex_exit and mutex_enter. Reviewed by pooka@
1.69	25-Apr-2014	pooka	branches: 1.69.4; gardenizing rump.c: move rump_lockdebug to locks.c
1.68	11-Mar-2014	pooka	branches: 1.68.2; Put the syncobjs in emul.c instead of locks.c so that they are present for both locks.c and locks_up.c alike.
1.67	09-Dec-2013	pooka	make !LOCKDEBUG work too
1.66	09-Dec-2013	pooka	Support ktrace for rump kernels. Requested by Justin Cormack on rumpkernel-users.
1.65	03-Jul-2013	njoly	Make RUMP_LOCKDEBUG work again. With some help from pooka@.
1.64	15-May-2013	pooka	branches: 1.64.2; Pass enums over the hypercall interface as ints to avoid some pathological scenarios from arising in setups where enums might be of a different size in the rump kernel and hypervisor.
1.63	02-May-2013	pooka	Push rwlock upgrade and downgrade into the hypervisor where there's at least a chance to implement them with minimal fuss.
1.62	02-May-2013	pooka	g/c stale comment
1.61	02-May-2013	pooka	Retry enabling spin mutexes. We should be able to avoid poking the scheduler by just making wakeup from cv_wait() honor the same locking order as when a spin mutex is acquired though mutex_enter(). fingers crossed
1.60	30-Apr-2013	pooka	Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.59	29-Apr-2013	pooka	Disable spin mutexes for now. They need some more work in the case where a spin mutex is used as an argument to cv_wait(). Plus, it would be good to sprinkle some asserts to make sure that the cpu context is not released while holding on to a spin mutex. All in all, should not be difficult, but needs careful testing and bravery (the scheduler will bite your legs off).
1.58	28-Apr-2013	pooka	Change rumpuser_cv_timedwait() from absolute time to relative time. It's then the hypervisor's problem to translate it accordingly. Now we no longer have to worry about the kernel having to know the hypervisor's time and vice versa.
1.57	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.56	27-Apr-2013	pooka	Try to make sure that the appropriate calls to mutex_enter() takes a spin mutex (i.e. does not relinquish cpu context while trying to take the mutex). Bump the hypercall interface version number. I'll be doing a bunch of other cleanups to simplify the interface for the benefit of alternative hypervisor implementations. I'll be riding this bump and doing a second one only after I'm finished with all of the changes.
1.55	06-Dec-2011	njoly	branches: 1.55.6; Do not protect wrong KASSERT by LOCKEDBUG ifdef/endif, the latter uses its own mecanism. Kill them both. From discussion with pooka@.
1.54	21-Mar-2011	pooka	branches: 1.54.4; 1.54.8; Update copyright statements. no functional change.
1.53	09-Mar-2011	pooka	track lockdebug data even in the special path
1.52	09-Mar-2011	pooka	Mark cv_wait mutex as locked before doing any further dances. Fixes a LOCKDEBUG panic in case the uncommon condition is hit.
1.51	08-Mar-2011	pooka	Nuke all threads belonging to a process calling exec before allowing the exec handshake to return. In addition to being The Right Thing To Do, fixes some nasty conditions for CLOEXEC fd's (or at least does so in theory, I couldn't create any problems although I tried).
1.50	28-Jan-2011	pooka	If we are "unsleepable" due to a dying proc, yield() instead of returning directly. This allows other threads to run possible setting a condition we are waiting on. Fixes a busyloop condition which could be entered from vfs_unmountall() where we were waiting for vrele_pending and the vrele thread could not run since we were hogging the CPU.
1.49	28-Jan-2011	pooka	Some lwp-walkers expect the correct value for l_stat, so use a flag in l_flag instead of l_stat for the purpose of flagging lwps in a dying proc.
1.48	18-Jan-2011	haad	branches: 1.48.2; Add support for compiling ZFS and Solaris modules as RUMP libraries. Add some locking and rumpcopy primitives and refactor module building Makefiles to work with both RUMP and kernel modules. This is first part of adding support for regular test of zfs on NetBSD to hunt some bugs and make it stable. Ok by pooka@.
1.47	12-Jan-2011	pooka	branches: 1.47.2; When the client and the rump kernel are the same host process, all threads blocking in the kernel automatically exit when the process exists. However, for the sysproxy case this does not hold. Typically it's ~harmless, but e.g. in the case of socket binding following by poll it gets annoying. Introduce sysproxy procexit, which wakes up all threads blocking on a condition when a process's communication socket is closed. The code is a little different from the regular kernel simply because in a rump kernel l_mutex is not available at all times (this is because scheduling happens on every kernel entry and exit, and that path must be kept lockless for any reasonable performance). Instead, use gating which makes sure all threads are either out of the cv code or suspended in a well-known state. Then, wake up the threads and tell them to get the hell out of our galaxy.
1.46	06-Jan-2011	pooka	antipasto
1.45	06-Jan-2011	pooka	Support LOCKDEBUG. To use it, compile sys/rump with RUMP_LOCKDEBUG=yes. requested by martin (sparc64 gdb cannot reliably produce a stack trace)
1.44	01-Dec-2010	pooka	implement mutex_owner()
1.43	01-Dec-2010	pooka	Track lwp as the rumpuser mutex owner instead of pthread_t (this is done in rumpuser for simplicity, since on the kernel side things we assume we have only one pointer of space). As a side-effect, we can no longer know if the current thread is holding on to a mutex locked without curlwp context (basically all mutexes inited outside of mutex_init()). The only thing that called rumpuser_mutex_held() for a non-kmutex was the giant lock. So, instead implement recursive locking for the giant lock in the rump kernel and get rid of the now-unused recursive pthread mutex in the hypercall interface.
1.42	09-Jun-2010	pooka	Similarly to cv_wait, fail if trying to cv_wait_sig() without threads.
1.41	18-May-2010	pooka	Move routines related to kernel locking and scheduling from locks.c to klock.c. No functional change.
1.40	18-May-2010	pooka	Make it possible to use the scheduler lock as the rumpuser condvar interlock. This is applicable in cases where the actual interlock is the CPU the currently running thread is scheduled on. Borrowing the scheduler lock as the mutex mandated by pthread_cond_wait() does away with need to have an additional mutex. This both optimizes runtime execution and simplifies code, as the extra lock typically lead to quite some trickeries to avoid the dungeon collapsing due to zaps from the wand of deadlock.
1.39	14-Apr-2010	pooka	Add comment about clock mismatch.
1.38	31-Jan-2010	snj	branches: 1.38.2; 1.38.4; Some might argue that it is benefi_c_ial to spell words correctly.
1.37	03-Dec-2009	pooka	Remove last remnants of the long-ago-properly-fixed RUMP_LMUTEX_MAGIC hack.
1.36	01-Dec-2009	pooka	Almost there for virtual CPU MP support: * support bound kernel threads * bind softint threads to specific virtual cpus + remove now-unnecessary locks from softint code Now, if we only had MI CPU_INFO_FOREACH() .... (hi rmind ;)
1.35	26-Nov-2009	pooka	Provide some sort of cv_is_valid(). What a silly routine.
1.34	11-Nov-2009	pooka	Make rumpuser_cv_timedwait take two int64's instead timespec to uncouple it from the timespec layout. Also, change return value to zero for "timeout didn't expire" and non-zero for "timeout expired". This decouples the interface from errno assignments.
1.33	04-Nov-2009	pooka	Use kern_mutex_obj.c directly instead of copypasting code.
1.32	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.31	15-Oct-2009	pooka	When allocating the temporary lwp we must have an lwp context. So take turns using lwp0 for this purpose, nothing else uses it.
1.30	15-Oct-2009	pooka	Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.29	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.28	02-Oct-2009	pooka	panic if cv_wait() is called in non-threaded mode
1.27	07-Feb-2009	pooka	Make the clock interrupt tick based on absolute time instead of relative time. This prevents drifting. Also, keep track of time within userspace, so we do not have to make a syscall to get the clock value. This is approximately 7 times cheaper, but on the negative side is limited to the clock interrupt frequency.
1.26	13-Jan-2009	pooka	misc cleanup, mainly header polish
1.25	19-Dec-2008	pooka	CTASSERT kcondvar size
1.24	19-Dec-2008	pooka	fix build (hi thorpej! the first one is always free ;)
1.23	18-Dec-2008	pooka	__KERNEL_RCSID
1.22	13-Dec-2008	pooka	Get rid of local machine/{mutex,rwlock}.h files by treating the object storage as a single pointer (all archs have at least one uintptr_t in the objects).
1.21	10-Dec-2008	pooka	Make kernel biglock recursecount volatile.
1.20	10-Oct-2008	pooka	branches: 1.20.2; Support callouts and call callout_hardclock() from the timer interrupt thread. The sleepq implementation required for callouts is horrible, kludged only for callouts, and generally unacceptable. It needs revisiting, but I'm not sure yet should rump or kern_timeout be improved. It's almost untested as of now, but committing this will give me some maneuvering space while letting application compile.
1.19	09-Oct-2008	pooka	Rewrite kernel lockus maximus handling to be correct.
1.18	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.17	18-Jul-2008	pooka	support cv_has_waiters()
1.16	31-May-2008	ad	branches: 1.16.2; 1.16.4; Turn off DIAGNOSTIC so it builds.
1.15	28-Apr-2008	martin	branches: 1.15.2; Remove clause 3 and 4 from TNF licenses
1.14	11-Apr-2008	ad	branches: 1.14.2; 1.14.4; More stubs.
1.13	01-Apr-2008	drochner	remove useless passing of the lwp from the KERNEL_LOCK() ABI (not the API; this would be easy as well) agreed (a while ago) by ad
1.12	11-Mar-2008	pooka	Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.11	30-Jan-2008	ad	branches: 1.11.2; 1.11.6; Fix pasto. Spotted by pooka@
1.10	30-Jan-2008	ad	Replace struct lock on vnodes with a simpler lock object built on krwlock_t. This is a step towards removing lockmgr and simplifying vnode locking. Discussed on tech-kern.
1.9	21-Jan-2008	pooka	In case cv_timedwait() gets ticks == 0, make sure we sleep eternally (or at least until wakeup) instead of immediately waking up. In other words, fix this after it broke when another piece of the code was fixed. Ain't programming fun?
1.8	02-Jan-2008	ad	Fix merge error.
1.7	02-Jan-2008	ad	Merge vmlocking2 to head.
1.6	01-Jan-2008	pooka	emulate a couple more locking interfaces
1.5	30-Dec-2007	pooka	steal 1.4.2.1 from vmlocking2: cv_xwait_sig()
1.4	19-Nov-2007	pooka	branches: 1.4.2; 1.4.6; support cv_broadcast()
1.3	17-Nov-2007	pooka	Implement cv_timedwait(), requested by Reinoud.
1.2	07-Nov-2007	pooka	branches: 1.2.2; 1.2.4; implement _kernel_lock{,_unlock}()
1.1	31-Oct-2007	pooka	branches: 1.1.2; 1.1.4; 1.1.6; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.1.6.5	23-Mar-2008	matt	sync with HEAD
1.1.6.4	09-Jan-2008	matt	sync with HEAD
1.1.6.3	08-Nov-2007	matt	sync with -HEAD
1.1.6.2	06-Nov-2007	matt	sync with HEAD
1.1.6.1	31-Oct-2007	matt	file locks.c was added on branch matt-armv6 on 2007-11-06 23:34:36 +0000
1.1.4.3	18-Feb-2008	mjf	Sync with HEAD.
1.1.4.2	08-Dec-2007	mjf	Sync with HEAD.
1.1.4.1	19-Nov-2007	mjf	Sync with HEAD.
1.1.2.4	21-Nov-2007	joerg	Sync with HEAD.
1.1.2.3	11-Nov-2007	joerg	Sync with HEAD.
1.1.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.1.2.1	31-Oct-2007	joerg	file locks.c was added on branch jmcneill-pm on 2007-10-31 23:14:16 +0000
1.2.4.6	17-Mar-2008	yamt	sync with head.
1.2.4.5	04-Feb-2008	yamt	sync with head.
1.2.4.4	21-Jan-2008	yamt	sync with head
1.2.4.3	07-Dec-2007	yamt	sync with head
1.2.4.2	15-Nov-2007	yamt	sync with head.
1.2.4.1	07-Nov-2007	yamt	file locks.c was added on branch yamt-lazymbuf on 2007-11-15 11:45:26 +0000
1.2.2.4	21-Nov-2007	bouyer	Sync with HEAD
1.2.2.3	18-Nov-2007	bouyer	Sync with HEAD
1.2.2.2	13-Nov-2007	bouyer	Sync with HEAD
1.2.2.1	07-Nov-2007	bouyer	file locks.c was added on branch bouyer-xenamd64 on 2007-11-13 16:03:14 +0000
1.4.6.2	23-Jan-2008	bouyer	Sync with HEAD.
1.4.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.4.2.1	28-Dec-2007	ad	Make rump build.
1.11.6.4	17-Jan-2009	mjf	Sync with HEAD.
1.11.6.3	28-Sep-2008	mjf	Sync with HEAD.
1.11.6.2	02-Jun-2008	mjf	Sync with HEAD.
1.11.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.11.2.1	24-Mar-2008	keiichi	sync with head.
1.14.4.4	11-Aug-2010	yamt	sync with head.
1.14.4.3	11-Mar-2010	yamt	sync with head
1.14.4.2	04-May-2009	yamt	sync with head.
1.14.4.1	16-May-2008	yamt	sync with head.
1.14.2.2	04-Jun-2008	yamt	sync with head
1.14.2.1	18-May-2008	yamt	sync with head.
1.15.2.3	10-Oct-2008	skrll	Sync with HEAD.
1.15.2.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.15.2.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.16.4.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.16.4.1	19-Oct-2008	haad	Sync with HEAD.
1.16.2.2	31-Jul-2008	simonb	Sync with head.
1.16.2.1	21-Jul-2008	simonb	Sync with head.
1.20.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.20.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.38.4.4	21-Apr-2011	rmind	sync with head
1.38.4.3	05-Mar-2011	rmind	sync with head
1.38.4.2	03-Jul-2010	rmind	sync with head
1.38.4.1	30-May-2010	rmind	sync with head
1.38.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.38.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.47.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.48.2.1	08-Feb-2011	bouyer	Sync with HEAD
1.54.8.1	18-Feb-2012	mrg	merge to -current.
1.54.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.54.4.1	17-Apr-2012	yamt	sync with head
1.55.6.3	03-Dec-2017	jdolecek	update from HEAD
1.55.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.55.6.1	23-Jun-2013	tls	resync from head
1.64.2.2	18-May-2014	rmind	sync with head
1.64.2.1	28-Aug-2013	rmind	sync with head
1.68.2.1	10-Aug-2014	tls	Rebase.
1.69.4.4	28-Aug-2017	skrll	Sync with HEAD
1.69.4.3	05-Feb-2017	skrll	Sync with HEAD
1.69.4.2	19-Mar-2016	skrll	Sync with HEAD
1.69.4.1	27-Dec-2015	skrll	Sync with HEAD (as of 26th Dec)
1.72.4.1	21-Apr-2017	bouyer	Sync with HEAD
1.72.2.1	20-Mar-2017	pgoyette	Sync with HEAD
1.73.4.3	02-May-2017	pgoyette	Sync with HEAD - tag prg-localcount2-base1
1.73.4.2	30-Apr-2017	pgoyette	Use the right conditional to enable/disable LOCKDEBUG within RUMP
1.73.4.1	30-Apr-2017	pgoyette	Introduce mutex_ownable(9) and use it in localcount_release(9). Commit of same code to head is awaiting discussion on tech-kern.
1.74.2.2	02-Apr-2018	martin	Pull up following revision(s) (requested by ozaki-r in ticket #687): sys/kern/kern_rwlock_obj.c: revision 1.4 sys/rump/librump/rumpkern/locks.c: revision 1.80 sys/kern/kern_rwlock.c: revision 1.50 sys/arch/x86/x86/db_memrw.c: revision 1.5,1.6 sys/ddb/db_command.c: revision 1.150-1.153 share/man/man4/ddb.4: revision 1.175 (via patch),1.176-1.178 sys/kern/kern_mutex_obj.c: revision 1.6 sys/kern/subr_lockdebug.c: revision 1.61-1.64 sys/sys/lockdebug.h: revision 1.17 sys/kern/kern_mutex.c: revision 1.71 sys/sys/lockdebug.h: revision 1.18,1.19 sys/kern/subr_xcall.c: revision 1.26 Obtain proper initialized addresses of locks allocated by mutex_obj_alloc or rw_obj_alloc Initialized addresses of locks allocated by mutex_obj_alloc or rw_obj_alloc were not useful because the addresses were mutex_obj_alloc or rw_obj_alloc itself. What we want to know are callers of them. Spinkle ASSERT_SLEEPABLE to xcall functions Use db_printf instead of printf in ddb Add a new command, show lockstat, which shows statistics of locks Currently the command shows the number of allocated locks. The command is useful only if LOCKDEBUG is enabled. Add a new command, show all locks, which shows information of active locks The command shows information of all active (i.e., being held) locks that are tracked through either of LWPs or CPUs by the LOCKDEBUG facility. The /t modifier additionally shows a backtrace for each LWP additionally. This feature is useful for debugging especially to analyze deadlocks. The command is useful only if LOCKDEBUG is enabled. Don't pass a unset address to lockdebug_lock_print x86: avoid accessing invalid addresses in ddb like arm32 This avoids that a command stops in the middle of an execution if a fault occurs due to an access to an invalid address. Get rid of a redundant output Improve wording. Fix a Cm argument. ddb: rename "show lockstat" to "show lockstats" to avoid conflicting with lockstat(8) Requested by mrg@
1.74.2.1	13-Jan-2018	snj	Pull up following revision(s) (requested by ozaki-r in ticket #495): lib/librumpuser/rumpfiber.c: revision 1.13 lib/librumpuser/rumpuser_pth.c: revision 1.46 lib/librumpuser/rumpuser_pth_dummy.c: revision 1.18 sys/kern/kern_condvar.c: revision 1.40 sys/kern/kern_lock.c: revision 1.161 sys/kern/kern_mutex.c: revision 1.68 sys/kern/kern_rwlock.c: revision 1.48 sys/rump/include/rump/rumpuser.h: revision 1.115 sys/rump/librump/rumpkern/locks.c: revision 1.76-1.79 Apply C99-style struct initialization to lockops_t -- Tweak LOCKDEBUG macros (NFC) -- Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels. -- rump: check if the mutex is surely owned by the caller in mutex_exit Unlocking a not-owned mutex wasn't detected well (it could detect if the mutex is not held by anyone but that's not enough). Let's check it (the check is the same as normal kernel's mutex). If LOCKDEBUG is enabled, give the check over LOCKDEBUG because it can provide better debugging information.
1.80.10.1	29-Feb-2020	ad	Sync with head.
1.80.4.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.14	02-Nov-2023	martin	Back out the following revisions on behalf of core: sys/sys/lwp.h: revision 1.228 sys/sys/pipe.h: revision 1.40 sys/kern/uipc_socket.c: revision 1.306 sys/kern/kern_sleepq.c: revision 1.84 sys/rump/librump/rumpkern/locks_up.c: revision 1.13 sys/kern/sys_pipe.c: revision 1.165 usr.bin/fstat/fstat.c: revision 1.119 sys/rump/librump/rumpkern/locks.c: revision 1.87 sys/ddb/db_xxx.c: revision 1.78 sys/ddb/db_command.c: revision 1.187 sys/sys/condvar.h: revision 1.18 sys/ddb/db_interface.h: revision 1.42 sys/sys/socketvar.h: revision 1.166 sys/kern/uipc_syscalls.c: revision 1.209 sys/kern/kern_condvar.c: revision 1.60 Add cv_fdrestart() [...] Use cv_fdrestart() to implement fo_restart. Simplify/streamline pipes a little bit [...] This changes have caused regressions and need to be debugged. The cv_fdrestart() addition needs more discussion.
1.13	13-Oct-2023	ad	Add cv_fdrestart() (better name suggestions welcome): Like cv_broadcast(), but make any LWPs that share the same file descriptor table as the caller return ERESTART when resuming. Used to dislodge LWPs waiting for I/O that prevent a file descriptor from being closed, without upsetting access to the file (not descriptor) made from another direction.
1.12	12-Apr-2023	riastradh	kern: Nix mutex_owner. There is no valid reason to use this except in assertions of the form KASSERT(mutex_owner(lock) == curlwp), which is more obviously spelled as KASSERT(mutex_owned(lock)). Exception: There's one horrible kludge in zfs that abuses this, which should be eliminated. XXX kernel revbump -- deleting symbol PR kern/47114
1.11	22-Feb-2020	ad	rump rw_lock_op
1.10	26-Jan-2016	pooka	branches: 1.10.18; 1.10.24; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.9	06-May-2013	pooka	branches: 1.9.12; update for new hypercalls
1.8	28-Apr-2013	pooka	Change rumpuser_cv_timedwait() from absolute time to relative time. It's then the hypervisor's problem to translate it accordingly. Now we no longer have to worry about the kernel having to know the hypervisor's time and vice versa.
1.7	27-Apr-2013	pooka	Try to make sure that the appropriate calls to mutex_enter() takes a spin mutex (i.e. does not relinquish cpu context while trying to take the mutex). Bump the hypercall interface version number. I'll be doing a bunch of other cleanups to simplify the interface for the benefit of alternative hypervisor implementations. I'll be riding this bump and doing a second one only after I'm finished with all of the changes.
1.6	28-Apr-2012	stacktic	branches: 1.6.2; Fixed build with locks_up.c
1.5	01-Dec-2010	pooka	branches: 1.5.8; 1.5.12; implement mutex_owner()
1.4	14-Jun-2010	pooka	branches: 1.4.2; 1.4.4; Make it possible to define an upper limit for memory consumed by the rump kernel by specifying RUMP_MEMLIMIT. In case allocation over that limit is attempted, essentially pool reclaim and uvm_wait() is done. The default is to allow to allocate as much as the host will give. XXX: uvm_km_alloc and malloc(9) do not currently conform. the former is easy, the latter requires kern_malloc.c (rump malloc is currently directly relegated to host malloc).
1.3	03-Jun-2010	pooka	Implement a sort-of pagedaemon: adjust all memory allocators to go through an in-rumpkernel hypermemory allocator which knows it should kick the pagedaemon and block in case ``waitok'' memory allocation fails. This allows us to recover from some out-of-memory situations. Realworld'istically speaking (as opposed to whatever "should be" theory), these OOM situations will happen extremely rarely if ever when our hypervisor is a regular process. Speculatively, this should be useful for other types of hosts. issues remaining: * the hypervisor does not know how to reclaim kernel memory (and for the reason I stated above, I'm not sure if it makes sense to teach the current implementation about that) * vfs memory (buffers, vm object pages etc.) is not reclaimed
1.2	01-Jun-2010	pooka	Don't pass "canfail" down to rumpuser_malloc -- there's quite little we can do with that info way down there. Instead, pass alignment. Implement rumpuser_malloc() with posix_memalign().
1.1	18-May-2010	pooka	branches: 1.1.2; Add uniprocessor versions of mutex/rw/cv. They work only on virtual unicpu configurations (i.e. RUMP_NCPU==1), but are massively faster than the multiprocessor versions since the fast path does not have to perform any cache coherent operations. _Applications_ with lock-happy kernel paths, i.e. _not_ lock microbenchmarks, measure up to tens of percents speedup on my Core2 Duo. Every globally atomic state required by normal locks/atomic ops implies a hideous speed penalty even for the fast path. While this requires a unicpu configuration, it should be noted that we are talking about a virtual unicpu configuration. The host can have as many processors as it desires, and the speed benefit of virtual unicpu is still there. It's pretty obvious that in terms of scalability simple workload partitioning and replication into multiple kernels wins hands down over complicated locking or locklessing algorithms which depend on globally atomic state.
1.1.2.4	05-Mar-2011	rmind	sync with head
1.1.2.3	03-Jul-2010	rmind	sync with head
1.1.2.2	30-May-2010	rmind	sync with head
1.1.2.1	18-May-2010	rmind	file locks_up.c was added on branch rmind-uvmplock on 2010-05-30 05:18:06 +0000
1.4.4.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.4.4.1	14-Jun-2010	uebayasi	file locks_up.c was added on branch uebayasi-xip on 2010-08-17 06:48:01 +0000
1.4.2.2	11-Aug-2010	yamt	sync with head.
1.4.2.1	14-Jun-2010	yamt	file locks_up.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:06 +0000
1.5.12.1	29-Apr-2012	mrg	sync to latest -current.
1.5.8.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.5.8.1	23-May-2012	yamt	sync with head.
1.6.2.2	03-Dec-2017	jdolecek	update from HEAD
1.6.2.1	23-Jun-2013	tls	resync from head
1.9.12.1	19-Mar-2016	skrll	Sync with HEAD
1.10.24.1	29-Feb-2020	ad	Sync with head.
1.10.18.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.36	14-Mar-2020	ad	Make page waits (WANTED vs BUSY) interlocked by pg->interlock. Gets RW locks out of the equation for sleep/wakeup, and allows observing+waiting for busy pages when holding only a read lock. Proposed on tech-kern.
1.35	23-Feb-2020	ad	UVM locking changes, proposed on tech-kern: - Change the lock on uvm_object, vm_amap and vm_anon to be a RW lock. - Break v_interlock and vmobjlock apart. v_interlock remains a mutex. - Do partial PV list locking in the x86 pmap. Others to follow later.
1.34	26-Jan-2016	pooka	branches: 1.34.18; 1.34.24; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.33	15-May-2013	pooka	branches: 1.33.10; how did that extra asterisk get there?
1.32	15-May-2013	pooka	qlock can now be a regular kernel spin mutex instead of a rumpuser mutex.
1.31	28-Apr-2013	pooka	Change rumpuser_cv_timedwait() from absolute time to relative time. It's then the hypervisor's problem to translate it accordingly. Now we no longer have to worry about the kernel having to know the hypervisor's time and vice versa.
1.30	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.29	28-Jan-2012	rmind	branches: 1.29.6; Remove obsolete ltsleep(9) and wakeup_one(9).
1.28	01-Dec-2010	pooka	branches: 1.28.8; 1.28.12; Track lwp as the rumpuser mutex owner instead of pthread_t (this is done in rumpuser for simplicity, since on the kernel side things we assume we have only one pointer of space). As a side-effect, we can no longer know if the current thread is holding on to a mutex locked without curlwp context (basically all mutexes inited outside of mutex_init()). The only thing that called rumpuser_mutex_held() for a non-kmutex was the giant lock. So, instead implement recursive locking for the giant lock in the rump kernel and get rid of the now-unused recursive pthread mutex in the hypercall interface.
1.27	31-May-2010	pooka	Support mtsleep() without a biglocked sleeper (uvm uses this in UVM_UNLOCK_AND_WAIT())
1.26	18-May-2010	pooka	Namespace rump-only kernel biglock routines appropriately. No functional change.
1.25	20-Dec-2009	pooka	branches: 1.25.2; 1.25.4; add comment about prospective perils to previous
1.24	20-Dec-2009	pooka	pthread_cond_timedwait (and therefore rumpuser_cv_timedwait) wants an absolute time instead of a delta. Fix bug which caused timed tsleeps to always wake up immediately (unless the system clock was around "0", which was not very probable ;).
1.23	05-Dec-2009	pooka	Cast Oh Kath Ra once every second.
1.22	05-Dec-2009	pooka	Remove now-empty rump_sleepers_init()
1.21	11-Nov-2009	pooka	set return value properly
1.20	11-Nov-2009	pooka	support timeouts in tsleep
1.19	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.18	04-Oct-2009	pooka	Fix hopefully the last deadlock in the wretched piece of code: since ltsleep abuses "while (!mutex_tryenter()) continue;" for NOT releasing the kernel biglock before sleeping, we cannot do a normal mutex_enter() in the wakeup path, or otherwise we might be a situation where the sleeper holds the kernel lock and wants the sleepermutex (and will not back down) and the wakeupper holds the sleepermutex and wants the kernel lock. So introduce kernel lock backdown to the wakeup path.
1.17	04-Sep-2009	pooka	brace policy. no functional change.
1.16	04-Sep-2009	pooka	Actually, we cannot release the megalock before we take sleepermtx, since that opens a race window for non-mpsafe code, so do it after. Additionally, we cannot call mutex_enter() for sleepermtx, since ltsleep/mtsleep should not block (i.e. release kernel lock) before actually blocking, so busyloop in mutex_tryenter(). Finally, when waking up, take kernel lock back only after releasing sleepermtx to avoid deadlock against another thread holding the kernel lock and wanting sleepermtx.
1.15	04-Sep-2009	pooka	* wrap tsleep functions to drop die grosslock since we're going to sleep anyway in a few flicks from the clock * broadcast instead of signal in wakeup()
1.14	09-Jun-2009	pooka	check that interlock isn't null before releasing it
1.13	09-Jun-2009	pooka	simplelocks have been supported in rump for a while, allow their use.
1.12	03-Jun-2009	pooka	implement wakeup_one
1.11	18-Mar-2009	cegger	Ansify function definitions w/o arguments. Generated with sed.
1.10	06-Feb-2009	pooka	branches: 1.10.2; Rip out the rwlock spl emulation code. It never did anything useful except keep my feet warm by consuming an insane amount of cpu cycles -- in rump our current "cpu" context is never interrupted & we have MULTIPROCESSOR. (itch i'm scratching: it made the networking stack 10-20% slower. this is one of the places where fast code actually matters)
1.9	18-Dec-2008	pooka	__KERNEL_RCSID
1.8	09-Oct-2008	pooka	branches: 1.8.2; Unsupport ltsleep() called with an interlock. Not that it was really supported before either, since without MULTIPROCESSOR it's just a nop.
1.7	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.6	27-Jan-2008	pooka	branches: 1.6.6; 1.6.10; 1.6.12; 1.6.14; 1.6.16; Use vfs_subr.c from sys/kern. This brings differences in the vnode life cycle between rump and a real kernel to a minimum.
1.5	05-Jan-2008	riz	Add #include <sys/simplelock.h>
1.4	02-Jan-2008	ad	Merge vmlocking2 to head.
1.3	07-Nov-2007	pooka	branches: 1.3.2; 1.3.4; 1.3.6; 1.3.10; Execute I/O in a separate thread for async I/O where previously everything was written/read in caller context. Also, make the "kernel" lock recursive. It works better that way ...
1.2	04-Nov-2007	pooka	branches: 1.2.2; 1.2.4; Fix some comments: thinking of it more closely, it is actually safe to release the sleep interlock before calling cv_wait() because we are protected by the list mutex which prevents a wakeup race.
1.1	31-Oct-2007	pooka	branches: 1.1.2; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.1.2.4	11-Nov-2007	joerg	Sync with HEAD.
1.1.2.3	04-Nov-2007	jmcneill	Sync with HEAD.
1.1.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.1.2.1	31-Oct-2007	joerg	file ltsleep.c was added on branch jmcneill-pm on 2007-10-31 23:14:16 +0000
1.2.4.5	23-Mar-2008	matt	sync with HEAD
1.2.4.4	09-Jan-2008	matt	sync with HEAD
1.2.4.3	08-Nov-2007	matt	sync with -HEAD
1.2.4.2	06-Nov-2007	matt	sync with HEAD
1.2.4.1	04-Nov-2007	matt	file ltsleep.c was added on branch matt-armv6 on 2007-11-06 23:34:36 +0000
1.2.2.2	18-Feb-2008	mjf	Sync with HEAD.
1.2.2.1	19-Nov-2007	mjf	Sync with HEAD.
1.3.10.2	08-Jan-2008	bouyer	Sync with HEAD
1.3.10.1	02-Jan-2008	bouyer	Sync with HEAD
1.3.6.1	28-Dec-2007	ad	Make rump build.
1.3.4.4	04-Feb-2008	yamt	sync with head.
1.3.4.3	21-Jan-2008	yamt	sync with head
1.3.4.2	15-Nov-2007	yamt	sync with head.
1.3.4.1	07-Nov-2007	yamt	file ltsleep.c was added on branch yamt-lazymbuf on 2007-11-15 11:45:26 +0000
1.3.2.2	13-Nov-2007	bouyer	Sync with HEAD
1.3.2.1	07-Nov-2007	bouyer	file ltsleep.c was added on branch bouyer-xenamd64 on 2007-11-13 16:03:14 +0000
1.6.16.1	19-Oct-2008	haad	Sync with HEAD.
1.6.14.1	31-Jul-2008	simonb	Sync with head.
1.6.12.2	10-Oct-2008	skrll	Sync with HEAD.
1.6.12.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.6.10.5	11-Aug-2010	yamt	sync with head.
1.6.10.4	11-Mar-2010	yamt	sync with head
1.6.10.3	16-Sep-2009	yamt	sync with head
1.6.10.2	20-Jun-2009	yamt	sync with head
1.6.10.1	04-May-2009	yamt	sync with head.
1.6.6.2	17-Jan-2009	mjf	Sync with HEAD.
1.6.6.1	28-Sep-2008	mjf	Sync with HEAD.
1.8.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.8.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.8.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.10.2.2	23-Jul-2009	jym	Sync with HEAD.
1.10.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.25.4.3	05-Mar-2011	rmind	sync with head
1.25.4.2	03-Jul-2010	rmind	sync with head
1.25.4.1	30-May-2010	rmind	sync with head
1.25.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.28.12.1	18-Feb-2012	mrg	merge to -current.
1.28.8.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.28.8.1	17-Apr-2012	yamt	sync with head
1.29.6.2	03-Dec-2017	jdolecek	update from HEAD
1.29.6.1	23-Jun-2013	tls	resync from head
1.33.10.1	19-Mar-2016	skrll	Sync with HEAD
1.34.24.1	29-Feb-2020	ad	Sync with head.
1.34.18.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.59	06-Apr-2025	riastradh	rump: Nix leaked struct lwp on every rump_server syscall. This leak was introduced by lwproc.c rev. 1.51 back in 2020, when the kmem_zalloc(sizeof(l), KM_SLEEP) was factored out of callers and into lwproc_makelwp: -static void -lwproc_makelwp(struct proc p, struct lwp l, bool doswitch, bool procmake) +static struct lwp +lwproc_makelwp(struct proc p, bool doswitch, bool procmake) { + struct lwp l = kmem_zalloc(sizeof(l), KM_SLEEP); ... @@ -435,8 +431,12 @@ rump_lwproc_newlwp(pid_t pid) kmem_free(l, sizeof(l)); return EBUSY; } + mutex_exit(p->p_lock); mutex_exit(&proc_lock); - lwproc_makelwp(p, l, true, false); + + /* XXX what holds proc? / + + lwproc_makelwp(p, true, false); Unfortunately, the kmem_zalloc in rump_lwproc_newlwp was not deleted. So it just leaked. And this routine is called on _every_ syscall handled by rump_server (via struct rumpuser_hyperup::hyp_lwproc_newlwp): 674 static void 675 serv_handlesyscall(struct spclient spc, struct rsp_hdr rhdr, uint8_t data) 676 { 677 register_t retval[2] = {0, 0}; 678 int rv, sysnum; 679 680 sysnum = (int)rhdr->rsp_sysnum; 681 DPRINTF(("rump_sp: handling syscall %d from client %d\n", 682 sysnum, spc->spc_pid)); 683 => 684 if (__predict_false((rv = lwproc_newlwp(spc->spc_pid)) != 0)) { 685 retval[0] = -1; 686 send_syscall_resp(spc, rhdr->rsp_reqno, rv, retval); 687 return; 688 } 689 spc->spc_syscallreq = rhdr->rsp_reqno; 690 rv = rumpsyscall(sysnum, data, retval); https://nxr.netbsd.org/xref/src/lib/librumpuser/rumpuser_sp.c?r=1.77#684 So this leak would grow fairly quickly in processes issuing rump syscalls to rump_servers, which t_sp:sigsafe's helper h_sigcli does as fast as it can in a loop for 5sec -- which is just long enough for the i386 releng testbed with about 128 MB of RAM to run out of memory in roughly half of the test runs, but not long enough on my laptop with 64 GB of RAM to ever reproduce the problem. Found by: (a) running the test for 20sec rather than 5sec to amplify the leak; (b) counting bytes allocated by return addresses of rumpuser_malloc; (c) chasing that to rump_hypermalloc (culprit) vs uvm_km_alloc; (d) chasing that to pgctor, uvm_map, uvm_km_kmem_alloc (culprit), vmapbuf; (e) then to pool_page_alloc, then to pool_allocator_alloc, then to pool_grow, then to pool_get, then to pool_cache_get, then to kmem_zalloc; (f) finally to the call to kmem_zalloc in rump_lwproc_newlwp, which at last yielded to my stare. This instrumentation was extremely ad hoc -- I just created a table of 4096 entries for each routine, and populated by linear scan with atomics: struct { void volatile ra; volatile unsigned long n; } pool_cache_get_bytes; void kmem_zalloc(size_t size, km_flags_t flags) { ... void *const ra = __builtin_return_address(0); size_t i; for (i = 0; i < __arraycount(kmem_zalloc_bytes); i++) { if (pool_cache_get_bytes[i].ra == ra \|\| (pool_cache_get_bytes[i].ra == NULL && atomic_cas_ptr(&pool_cache_get_bytes[i].ra, NULL, ra) == NULL)) { atomic_add_long(&pool_cache_get_bytes[i].n, size); break; } } ... } Would be nice to systematize this. Would also be nice to bring back malloc tags for accounting purposes so you don't need to match up the kmem_zalloc return addresses with the kmem_free return addresses to find leaks -- I got lucky here because there were very few return addresses to piece through. PR misc/59252: tests/rump/rumpkern/t_sp:sigsafe: out of memory
1.58	15-Oct-2023	riastradh	branches: 1.58.6; rump: Sprinkle sys/syncobj.h here too.
1.57	05-Oct-2023	ad	Arrange to update cached LWP credentials in userret() rather than during syscall/trap entry, eliminating a test+branch on every syscall/trap. This wasn't possible in the 3.99.x timeframe when l->l_cred came about because there wasn't a reliable/timely way to force an ONPROC LWP running on a remote CPU into the kernel (which is just about the only new thing in this scheme).
1.56	04-Oct-2023	ad	Eliminate l->l_biglocks. Originally I think it had a use but these days a local variable will do.
1.55	04-Oct-2023	ad	Eliminate l->l_ncsw and l->l_nivcsw. From memory think they were added before we had per-LWP struct rusage; the same is now tracked there.
1.54	22-Feb-2023	riastradh	rump: Nix membar_enter/exit after/before RUMPUSER_LWP_CREATE/DESTROY. These make no sense and are obviously not needed for any of the rumpuser implementations in-tree. (For single-threaded fiber and pth_dummy, no barriers needed; for pth, RUMPUSER_LWP_CREATE/DESTROY use pthread_mutex so don't need any barriers.) It _might_ make sense to do membar_release/acquire around just RUMPUSER_LWP_DESTROY, perhaps if there's some reference-counting business involved. But if a rumpuser implementation really needs that it can do it itself.
1.53	22-Feb-2023	riastradh	rumpkern/lwproc.c: Nix trailing whitespace.
1.52	02-Nov-2022	ozaki-r	rump: don't touch p_nlwps without holding p_lock There was a race condition on p_nlwps. Heavy thread switching could cause a kernel panic like: panic: kernel diagnostic assertion "LIST_EMPTY(&p->p_lwps)" failed: file "(hidden)/src/lib/librump/../../sys/rump/librump/rumpkern/lwproc.c", line 177
1.51	30-May-2020	ad	Fix a lock order reversal that caused hangs.
1.50	23-May-2020	ad	Move proc_lock into the data segment. It was dynamically allocated because at the time we had mutex_obj_alloc() but not __cacheline_aligned.
1.49	23-May-2020	ad	- Replace pid_table_lock with a lockless lookup covered by pserialize, with the "writer" side being pid_table expansion. The basic idea is that when doing an LWP lookup there is usually already a lock held (p->p_lock), or a spin mutex that needs to be taken (l->l_mutex), and either can be used to get the found LWP stable and confidently determine that all is correct. - For user processes LSLARVAL implies the same thing as LSIDL ("not visible by ID"), and lookup by ID in proc0 doesn't really happen. In-tree the new state should be understood by top(1), the tty subsystem and so on, and would attract the attention of 3rd party kernel grovellers in time, so remove it and just rely on LSIDL.
1.48	25-Apr-2020	bouyer	Merge the bouyer-xenpvh branch, bringing in Xen PV drivers support under HVM guests in GENERIC. Xen support can be disabled at runtime with boot -c disable hypervisor
1.47	24-Apr-2020	thorpej	lwp0.l_lid needs to be 0.
1.46	24-Apr-2020	thorpej	Adapt to LWP ID allocation changes.
1.45	19-Apr-2020	thorpej	- Only increment nprocs when we're creating a new process, not just when allocating a PID. - Per above, proc_free_pid() no longer decrements nprocs. It's now done in proc_free() right after proc_free_pid(). - Ensure nprocs is accessed using atomics everywhere.
1.44	15-Feb-2020	ad	branches: 1.44.4; - Move the LW_RUNNING flag back into l_pflag: updating l_flag without lock in softint_dispatch() is risky. May help with the "softint screwup" panic. - Correct the memory barriers around zombies switching into oblivion.
1.43	08-Jan-2020	ad	Hopefully fix some problems seen with MP support on non-x86, in particular where curcpu() is defined as curlwp->l_cpu: - mi_switch(): undo the ~2007ish optimisation to unlock curlwp before calling cpu_switchto(). It's not safe to let other actors mess with the LWP (in particular l->l_cpu) while it's still context switching. This removes l->l_ctxswtch. - Move the LP_RUNNING flag into l->l_flag and rename to LW_RUNNING since it's now covered by the LWP's lock. - Ditch lwp_exit_switchaway() and just call mi_switch() instead. Everything is in cache anyway so it wasn't buying much by trying to avoid saving old state. This means cpu_switchto() will never be called with prevlwp == NULL. - Remove some KERNEL_LOCK handling which hasn't been needed for years.
1.42	17-May-2019	ozaki-r	branches: 1.42.4; Implement an aggressive psref leak detector It is yet another psref leak detector that enables to tell where a leak occurs while a simpler version that is already committed just tells an occurrence of a leak. Investigating of psref leaks is hard because once a leak occurs a percpu list of psref that tracks references can be corrupted. A reference to a tracking object is memorized in the list via an intermediate object (struct psref) that is normally allocated on a stack of a thread. Thus, the intermediate object can be overwritten on a leak resulting in corruption of the list. The tracker makes a shadow entry to an intermediate object and stores some hints into it (currently it's a caller address of psref_acquire). We can detect a leak by checking the entries on certain points where any references should be released such as the return point of syscalls and the end of each softint handler. The feature is expensive and enabled only if the kernel is built with PSREF_DEBUG. Proposed on tech-kern
1.41	09-Mar-2019	hannken	Rumpkernel has its own thread deallocation. Add missing fstrans_lwp_dtor() to lwproc_freelwp(). PR bin/50350: rump/rumpkern/t_sp/stress_{long,short} fail on Core 2 Quad
1.40	24-Apr-2016	martin	branches: 1.40.18; Add lwp_find() - verbatim copy from the hard kernel.
1.39	04-Apr-2016	christos	Split p_xstat (composite wait(2) status code, or signal number depending on context) into: 1. p_xexit: exit code 2. p_xsig: signal number 3. p_sflag & WCOREFLAG bit to indicated that the process core-dumped. Fix the documentation of the flag bits in <sys/proc.h>
1.38	08-Feb-2016	pooka	Allocate struct cpu_info dynamically. Saves quite a lot of BSS in the common case and reduces rump kernel memory requirements by 10% or more in really tiny deployments.
1.37	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.36	18-Jan-2016	pooka	put lwp/proc stuff into the same source module (emul.c -> lwproc.c)
1.35	18-Apr-2015	pooka	Give remote clients struct pmap storage. Although the pmap is unused, that way we can sure that the pmap macro framework doesn't access all the wrong places.
1.34	17-Apr-2015	pooka	Don't share file descriptors between proc0 and local clients.
1.33	03-Apr-2015	pooka	Use a different vmspace for rump kernel proc0 and local clients. While the rump kernel and local clients are by definition in the same host vmspace, there are subtle differences in how in-kernel code works in case accessing the kernel vmspace or a user process vmspace. Problem discovered by riastradh's "read(fd, NULL, 1)" test.
1.32	21-Jan-2015	pooka	Account for lwps so that rump_sys_setuid() doesn't hit a KASSERT when it tries to reaccount a switching procs lwps. from Mato Lucina
1.31	25-Apr-2014	pooka	branches: 1.31.4; Init function pointers to nullop() so that callers don't need a dance
1.30	16-Apr-2014	pooka	Reparent children of a dying lwproc. Fixes wpa_supplicant -B (and most likely a bunch of other things).
1.29	09-Apr-2014	pooka	implement lwp_create() and a few related interfaces. main raison d'impalerment: the aio driver
1.28	16-Mar-2014	pooka	branches: 1.28.2; remove unnecesary verbosity: s/RUMP_CURLWP_MODEL/RUMP_CURLWP/
1.27	15-Mar-2014	pooka	Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.26	16-Dec-2013	pooka	Translate return values for emulations, e.g. Linux. For ports without __HAVE_MINIMAL_EMUL, we simply look up the values from p->p_emul->e_errno. For ports which cannot afford to keep an extra pointer per emul structure around, we hope there is __HAVE_SYSCALL_INTERN support and thread the errno values through p_emuldata. Notably, we cannot alter the syscall method like most ports do with syscall_intern, since they do it via p_mdproc, so MI code is not possible there.
1.25	09-Dec-2013	pooka	stop ktrace at process exit
1.24	27-Oct-2013	pooka	Enable holding implicit threads over explicit scheduling points (i.e. a kernel driver calling rump_lwproc_switch()). Also, correctly handle curcpu()->ci_curlwp and biglock there.
1.23	15-May-2013	pooka	branches: 1.23.2; Add RUMPUSER_LWP_CLEAR instead of overloading RUMPUSER_LWP_SET. This simplifies some alternative hypervisor implementations.
1.22	02-May-2013	pooka	Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.21	28-Apr-2013	pooka	One more mutex which is used as a spin mutex and therefore needs to be tagged as one, lest the mighty assert smites thee.
1.20	07-Mar-2013	pooka	Support multiple syscall emuls. Rump kernels with only local clients have it easy, since they have to support at most two syscall vectors (some calls such as mount/unmount can be made only through the "native" NetBSD vector). Remote clients are a whole different tin of green beans. This change addresses local clients only.
1.19	13-Nov-2012	pooka	kill some -Wunused-but-set-variable warnings
1.18	01-May-2011	pgoyette	branches: 1.18.4; 1.18.14; More lim_free() fallout
1.17	08-Mar-2011	pooka	Nuke all threads belonging to a process calling exec before allowing the exec handshake to return. In addition to being The Right Thing To Do, fixes some nasty conditions for CLOEXEC fd's (or at least does so in theory, I couldn't create any problems although I tried).
1.16	07-Mar-2011	pooka	Fill in a functional struct lwp (especially l_mutex) before exposing it on p_lwps.
1.15	10-Feb-2011	pooka	branches: 1.15.2; Explicitly zerofill some fields which are not within the boundaries of p_start/endzero for whatever reasons. Obviously, this fixes remote physio when running with MALLOC_OPTIONS J. Otherwise PS_WEXIT is set in struct proc, proc_vmspace_getref() fails, and copyout_proc() with it. Reported by njoly
1.14	10-Feb-2011	pooka	copy parent's p_comm when forking (if it exists)
1.13	28-Jan-2011	pooka	Don't NULL out l_cpu, l_stat is the new rumpkernel way too.
1.12	28-Jan-2011	pooka	Some lwp-walkers expect the correct value for l_stat, so use a flag in l_flag instead of l_stat for the purpose of flagging lwps in a dying proc.
1.11	28-Jan-2011	pooka	fill in a default name for p_comm
1.10	13-Jan-2011	pooka	branches: 1.10.2; 1.10.4; Introduce RUMP_LOCALPROC_P() macro and use it.
1.9	12-Jan-2011	pooka	When the client and the rump kernel are the same host process, all threads blocking in the kernel automatically exit when the process exists. However, for the sysproxy case this does not hold. Typically it's ~harmless, but e.g. in the case of socket binding following by poll it gets annoying. Introduce sysproxy procexit, which wakes up all threads blocking on a condition when a process's communication socket is closed. The code is a little different from the regular kernel simply because in a rump kernel l_mutex is not available at all times (this is because scheduling happens on every kernel entry and exit, and that path must be kept lockless for any reasonable performance). Instead, use gating which makes sure all threads are either out of the cv code or suspended in a well-known state. Then, wake up the threads and tell them to get the hell out of our galaxy.
1.8	06-Jan-2011	pooka	Support LOCKDEBUG. To use it, compile sys/rump with RUMP_LOCKDEBUG=yes. requested by martin (sparc64 gdb cannot reliably produce a stack trace)
1.7	02-Jan-2011	pooka	There is a use case where preserving the parent's fd table is relevant, so to accommodate that change rump_lwproc_newproc() to rump_lwproc_rfork(). The new interface has the rfork() fd table semantics. The equivalent of rump_lwproc_newproc() is rump_lwproc_rfork(RUMP_RFCFDG).
1.6	22-Nov-2010	pooka	Support physio for remote processes. ==> add support for remote vmspace vmapbuf/vunmapbuf ==> add proper support for copyin/out_vmspace ==> add support for remote vmspace uvm_io ==> add support for non-curproc rumpuser_sp_copyin/out ==> store remote context in vm_map->pmap instead of pthread_specificdata In short, makes read/write of most (all?) block devices work from a remote rump client via rump syscalls.
1.5	17-Nov-2010	pooka	cleanup some old garbage
1.4	15-Nov-2010	pooka	Add a new signal model RUMP_SIGMODEL_RECORD which records all signals which are posted to a process.
1.3	29-Oct-2010	pooka	Attach implicit threads to initproc instead of proc0. This way applications which alter, by purpose or by accident, the uid in an implicit thread are don't affect kernel threads. from discussion with njoly
1.2	01-Sep-2010	pooka	branches: 1.2.2; 1.2.4; proper panic for trying to release implicit lwp
1.1	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.2.4.3	06-Nov-2010	uebayasi	Sync with HEAD.
1.2.4.2	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.2.4.1	01-Sep-2010	uebayasi	file lwproc.c was added on branch uebayasi-xip on 2010-10-22 07:22:49 +0000
1.2.2.2	09-Oct-2010	yamt	sync with head
1.2.2.1	01-Sep-2010	yamt	file lwproc.c was added on branch yamt-nfs-mp on 2010-10-09 03:32:43 +0000
1.10.4.2	17-Feb-2011	bouyer	Sync with HEAD
1.10.4.1	08-Feb-2011	bouyer	Sync with HEAD
1.10.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.15.2.4	31-May-2011	rmind	sync with head
1.15.2.3	21-Apr-2011	rmind	sync with head
1.15.2.2	05-Mar-2011	rmind	sync with head
1.15.2.1	10-Feb-2011	rmind	file lwproc.c was added on branch rmind-uvmplock on 2011-03-05 20:56:15 +0000
1.18.14.4	03-Dec-2017	jdolecek	update from HEAD
1.18.14.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.18.14.2	23-Jun-2013	tls	resync from head
1.18.14.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.18.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.18.4.1	16-Jan-2013	yamt	sync with (a bit old) head
1.23.2.1	18-May-2014	rmind	sync with head
1.28.2.1	10-Aug-2014	tls	Rebase.
1.31.4.5	29-May-2016	skrll	Sync with HEAD
1.31.4.4	22-Apr-2016	skrll	Sync with HEAD
1.31.4.3	19-Mar-2016	skrll	Sync with HEAD
1.31.4.2	06-Jun-2015	skrll	Sync with HEAD
1.31.4.1	06-Apr-2015	skrll	Sync with HEAD
1.40.18.2	21-Apr-2020	martin	Sync with HEAD
1.40.18.1	10-Jun-2019	christos	Sync with HEAD
1.42.4.2	29-Feb-2020	ad	Sync with head.
1.42.4.1	17-Jan-2020	ad	Sync with head.
1.44.4.2	25-Apr-2020	bouyer	Sync with bouyer-xenpvh-base2 (HEAD)
1.44.4.1	20-Apr-2020	bouyer	Sync with HEAD
1.58.6.1	02-Aug-2025	perseant	Sync with HEAD
1.22	17-Jun-2015	pooka	Remove unreal allocators, unconditionally use subr_{kmem,pool}. Will, with other work, allow to tighten the memory allocation hypercall specification to page-granularity allocations in the future.
1.21	27-Apr-2013	pooka	branches: 1.21.12; * treat kern_malloc.c as an unreal allocator (it's so lightweight) * get rid of the rumpuser_realloc() hypercall * pass size to rumpuser_free()
1.20	10-Mar-2013	pooka	Use kern_malloc.c instead of the relegated allocators in memalloc.c. Previously this didn't make sense due to the use of kmem_map, but the new malloc is more dynamic and puts sense into using it.
1.19	10-Mar-2013	pooka	Always include subr_vmem.c, even with RUMP_UNREAL_ALLOCATORS=yes (previously it was just missing in that case). Record wchan to unreal pool_init() to avoid memory leak warning.
1.18	20-Jul-2012	pooka	branches: 1.18.2; Make it possible to select between real and unreal allocators from make. Plus some gratuitous renaming.
1.17	20-Jul-2012	pooka	make unreal allocators work again
1.16	05-Jun-2012	jym	Now that pool_cache_invalidate() is synchronous and can handle per-CPU caches, merge together pool_drain_start() and pool_drain_end() into bool pool_drain(struct pool **ppp); "bool" value indicates whether reclaiming was fully done (true) or not (false) "ppp" will contain a pointer to the pool that was drained (optional). See http://mail-index.netbsd.org/tech-kern/2012/06/04/msg013287.html
1.15	29-Apr-2012	dsl	Remove everything to do with 'struct malloc_type' and the malloc link_set. To make code in 'external' (etc) still compile, MALLOC_DECLARE() still has to generate something of type 'struct malloc_type *', with normal optimisation gcc generates a compile-time 0. MALLOC_DEFINE() and friends have no effect. Fix one or two places where the code would no longer compile.
1.14	29-Apr-2012	dsl	Remove the unused 'struct malloc_type' args to kern_malloc/realloc/free The M_xxx arg is left on the calls to malloc() and free(), maybe they could be converted to an enumeration and just saved in the malloc header (for deep diag use). Remove the malloc_type from mbuf extension. Fixes rump build as well. Welcome to 6.99.6
1.13	29-Apr-2012	rmind	Fix RUMP build.
1.12	04-Feb-2012	para	make acorn26 compile by fixing up subpage pool allocations ok: riz@
1.11	11-Jul-2010	pooka	branches: 1.11.8; 1.11.12; Reflect change to pool_drain_end. Makes -DRUMP_USE_UNREAL_ALLOCATORS compile (and work) again.
1.10	08-Jul-2010	pooka	Emulate malloc(9) a little better by panicking if a should-not-fail allocation fails. We could invoke the pagedaemon here, but since malloc(9) is panicky when it runs out of kmem_map, let's do the "same".
1.9	14-Jun-2010	pooka	Make it possible to define an upper limit for memory consumed by the rump kernel by specifying RUMP_MEMLIMIT. In case allocation over that limit is attempted, essentially pool reclaim and uvm_wait() is done. The default is to allow to allocate as much as the host will give. XXX: uvm_km_alloc and malloc(9) do not currently conform. the former is easy, the latter requires kern_malloc.c (rump malloc is currently directly relegated to host malloc).
1.8	03-Jun-2010	pooka	Don't use rumpuser_malloc() directly.
1.7	03-Jun-2010	pooka	Implement a sort-of pagedaemon: adjust all memory allocators to go through an in-rumpkernel hypermemory allocator which knows it should kick the pagedaemon and block in case ``waitok'' memory allocation fails. This allows us to recover from some out-of-memory situations. Realworld'istically speaking (as opposed to whatever "should be" theory), these OOM situations will happen extremely rarely if ever when our hypervisor is a regular process. Speculatively, this should be useful for other types of hosts. issues remaining: * the hypervisor does not know how to reclaim kernel memory (and for the reason I stated above, I'm not sure if it makes sense to teach the current implementation about that) * vfs memory (buffers, vm object pages etc.) is not reclaimed
1.6	01-Jun-2010	pooka	Don't pass "canfail" down to rumpuser_malloc -- there's quite little we can do with that info way down there. Instead, pass alignment. Implement rumpuser_malloc() with posix_memalign().
1.5	15-Jan-2010	pooka	branches: 1.5.2; 1.5.4; 1.5.6; Use subr_percpu.c instead of homegrown implementation. ...except when using malloc(3)-relegated allocators (happens in production e.g. on Linux), since subr_percpu.c uses vmem and i don't want to reimplement vmem.
1.4	11-Jan-2010	stacktic	Fixed typo.
1.3	23-Dec-2009	stacktic	Fixed build when using unreal allocators.
1.2	27-Nov-2009	pooka	Now that Makefile.rump was changed and everything gets built in update builds too, flip the allocator define to prefer the kernel pool/kmem instead of malloc(3). Use malloc(3) only if RUMP_USE_UNREAL_ALLOCATORS is defined.
1.1	04-Nov-2009	pooka	Pull all relegating memory allocators under a common roof in memalloc.c (forgot to commit the new file)
1.5.6.2	05-Mar-2011	rmind	sync with head
1.5.6.1	03-Jul-2010	rmind	sync with head
1.5.4.3	11-Aug-2010	yamt	sync with head.
1.5.4.2	11-Mar-2010	yamt	sync with head
1.5.4.1	15-Jan-2010	yamt	file memalloc.c was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.5.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.11.12.3	02-Jun-2012	mrg	sync to latest -current.
1.11.12.2	29-Apr-2012	mrg	sync to latest -current.
1.11.12.1	18-Feb-2012	mrg	merge to -current.
1.11.8.4	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.11.8.3	30-Oct-2012	yamt	sync with head
1.11.8.2	23-May-2012	yamt	sync with head.
1.11.8.1	17-Apr-2012	yamt	sync with head
1.18.2.2	03-Dec-2017	jdolecek	update from HEAD
1.18.2.1	23-Jun-2013	tls	resync from head
1.21.12.1	22-Sep-2015	skrll	Sync with HEAD
1.26	04-Nov-2009	pooka	misc_stub and emul have been the same thing for a looong time now, so just move the few remaining routines in misc_stub to emul.
1.25	04-Nov-2009	pooka	Implement yield()/preempt() now that there is a CPU scheduler.
1.24	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.23	02-Oct-2009	elad	First part of secmodel cleanup and other misc. changes: - Separate the suser part of the bsd44 secmodel into its own secmodel and directory, pending even more cleanups. For revision history purposes, the original location of the files was src/sys/secmodel/bsd44/secmodel_bsd44_suser.c src/sys/secmodel/bsd44/suser.h - Add a man-page for secmodel_suser(9) and update the one for secmodel_bsd44(9). - Add a "secmodel" module class and use it. Userland program and documentation updated. - Manage secmodel count (nsecmodels) through the module framework. This eliminates the need for secmodel_{,de}register() calls in secmodel code. - Prepare for secmodel modularization by adding relevant module bits. The secmodels don't allow auto unload. The bsd44 secmodel depends on the suser and securelevel secmodels. The overlay secmodel depends on the bsd44 secmodel. As the module class is only cosmetic, and to prevent ambiguity, the bsd44 and overlay secmodels are prefixed with "secmodel_". - Adapt the overlay secmodel to recent changes (mainly vnode scope). - Stop using link-sets for the sysctl node(s) creation. - Keep sysctl variables under nodes of their relevant secmodels. In other words, don't create duplicates for the suser/securelevel secmodels under the bsd44 secmodel, as the latter is merely used for "grouping". - For the suser and securelevel secmodels, "advertise presence" in relevant sysctl nodes (sysctl.security.models.{suser,securelevel}). - Get rid of the LKM preprocessor stuff. - As secmodels are now modules, there's no need for an explicit call to secmodel_start(); it's handled by the module framework. That said, the module framework was adjusted to properly load secmodels early during system startup. - Adapt rump to changes: Instead of using empty stubs for securelevel, simply use the suser secmodel. Also replace secmodel_start() with a call to secmodel_suser_start(). - 5.99.20. Testing was done on i386 ("release" build). Spearated module_init() changes were tested on sparc and sparc64 as well by martin@ (thanks!). Mailing list reference: http://mail-index.netbsd.org/tech-kern/2009/09/25/msg006135.html
1.22	02-May-2009	pooka	Do not include securelevel, it includes too many dependencies on vfs in its current form.
1.21	29-Mar-2009	pooka	include subr_evcnt
1.20	19-Mar-2009	pooka	Simple syscall_establish() support. (should use kernel sources version, but it's buried inside a module with a lot of junk in it, so shortcut for now)
1.19	18-Mar-2009	pooka	Support kqueue in the rump virtual kernel.
1.18	18-Mar-2009	cegger	Ansify function definitions w/o arguments. Generated with sed.
1.17	01-Jan-2009	pooka	branches: 1.17.2; Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.16	18-Dec-2008	pooka	__KERNEL_RCSID
1.15	26-Nov-2008	pooka	Add a few symbols required by nfsd
1.14	19-Nov-2008	ad	+evcnt_detach
1.13	15-Oct-2008	ad	branches: 1.13.2; - Rename cpu_lookup_byindex() to cpu_lookup(). The hardware ID isn't of interest to MI code. No functional change. - Change /dev/cpu to operate on cpu index, not hardware ID. Now cpuctl shouldn't print confused output.
1.12	02-Oct-2008	pooka	Remove rumpuser_yield(). Not only doesn't it really make sense here, some kind soul made it completely empty.
1.11	01-Aug-2008	pooka	support real sysctls
1.10	28-Jun-2008	chris	branches: 1.10.2; Add sysctl_teardown stub, moves the build past breakage in rump.
1.9	04-May-2008	ad	branches: 1.9.2; 1.9.4; Pull in the kernel module stuff so that rump can set up built-in modules.
1.8	11-Apr-2008	ad	branches: 1.8.2; 1.8.4; +evcnt_attach_dynamic
1.7	27-Feb-2008	ad	+cpu_lookup_byindex
1.6	16-Jan-2008	ad	branches: 1.6.2; 1.6.6; Pull in my modules code for review/test/hacking.
1.5	09-Jan-2008	he	Declare nbpg if we're building for sparc, and initialize to the smallest sparc pagesize. This should deal with the IOCPARM_MAX build problem, which occurs on sparc because various models have different page size, so it's run-time determined instead. pooka says that rump doesn't use ioctl(), so the value is apparently of no consequence.
1.4	07-Jan-2008	ad	Patch up sysctl locking: - Lock processes, credentials, filehead etc correctly. - Acquire a read hold on sysctl_treelock if only doing a query. - Don't wire down the output buffer. It doesn't work correctly and the code regularly does long term sleeps with it held - it's not worth it. - Don't hold locks other than sysctl_lock while doing copyout(). - Drop sysctl_lock while doing copyout / allocating memory in a few places. - Don't take kernel_lock for sysctl. - Fix a number of bugs spotted along the way
1.3	14-Aug-2007	pooka	branches: 1.3.2; 1.3.4; 1.3.6; 1.3.8; 1.3.14; 1.3.16; 1.3.22; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.2	09-Aug-2007	pooka	Add some stubs for lfs.
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file misc_stub.c was added on branch matt-mips64 on 2007-08-05 22:28:09 +0000
1.3.22.3	19-Jan-2008	bouyer	Sync with HEAD
1.3.22.2	10-Jan-2008	bouyer	Sync with HEAD
1.3.22.1	08-Jan-2008	bouyer	Sync with HEAD
1.3.16.1	18-Feb-2008	mjf	Sync with HEAD.
1.3.14.2	02-Nov-2007	joerg	Reduce diff to HEAD by adding files forgotten in early merges.
1.3.14.1	14-Aug-2007	joerg	file misc_stub.c was added on branch jmcneill-pm on 2007-11-02 12:43:52 +0000
1.3.8.4	17-Mar-2008	yamt	sync with head.
1.3.8.3	21-Jan-2008	yamt	sync with head
1.3.8.2	03-Sep-2007	yamt	sync with head.
1.3.8.1	14-Aug-2007	yamt	file misc_stub.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:31 +0000
1.3.6.2	23-Mar-2008	matt	sync with HEAD
1.3.6.1	09-Jan-2008	matt	sync with HEAD
1.3.4.2	20-Aug-2007	ad	Sync with HEAD.
1.3.4.1	14-Aug-2007	ad	file misc_stub.c was added on branch vmlocking on 2007-08-20 22:07:28 +0000
1.3.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.3.2.1	14-Aug-2007	skrll	file misc_stub.c was added on branch nick-csl-alignment on 2007-08-15 13:50:39 +0000
1.6.6.6	17-Jan-2009	mjf	Sync with HEAD.
1.6.6.5	05-Oct-2008	mjf	Sync with HEAD.
1.6.6.4	28-Sep-2008	mjf	Sync with HEAD.
1.6.6.3	29-Jun-2008	mjf	Sync with HEAD.
1.6.6.2	02-Jun-2008	mjf	Sync with HEAD.
1.6.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.6.2.1	24-Mar-2008	keiichi	sync with head.
1.8.4.3	11-Mar-2010	yamt	sync with head
1.8.4.2	04-May-2009	yamt	sync with head.
1.8.4.1	16-May-2008	yamt	sync with head.
1.8.2.1	18-May-2008	yamt	sync with head.
1.9.4.1	03-Jul-2008	simonb	Sync with head.
1.9.2.2	10-Oct-2008	skrll	Sync with HEAD.
1.9.2.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.10.2.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.10.2.1	19-Oct-2008	haad	Sync with HEAD.
1.13.2.2	28-Apr-2009	skrll	Sync with HEAD.
1.13.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.17.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.2	08-Aug-2007	pooka	* compile param.c * move opts to a separate directory
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file opt_ddb.h was added on branch matt-mips64 on 2007-08-05 22:28:09 +0000
1.2	08-Aug-2007	pooka	* compile param.c * move opts to a separate directory
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file opt_multiprocessor.h was added on branch matt-mips64 on 2007-08-05 22:28:10 +0000
1.2	08-Aug-2007	pooka	* compile param.c * move opts to a separate directory
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file opt_revcache.h was added on branch matt-mips64 on 2007-08-05 22:28:10 +0000
1.2	08-Aug-2007	pooka	* compile param.c * move opts to a separate directory
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file opt_vnode_lockdebug.h was added on branch matt-mips64 on 2007-08-05 22:28:10 +0000
1.7	15-Jan-2010	pooka	Use subr_percpu.c instead of homegrown implementation. ...except when using malloc(3)-relegated allocators (happens in production e.g. on Linux), since subr_percpu.c uses vmem and i don't want to reimplement vmem.
1.6	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.5	18-Mar-2009	cegger	branches: 1.5.2; Ansify function definitions w/o arguments. Generated with sed.
1.4	29-Dec-2008	pooka	branches: 1.4.2; 1.4.4; Switch i386 away from rump/include/machine. This means that rump on i386 now uses the native kernel ABI. This in turn means that rump modules and kernel modules are binary equivalent and can be used interchangeably.
1.3	18-Dec-2008	pooka	__KERNEL_RCSID
1.2	11-Oct-2008	pooka	branches: 1.2.2; 1.2.4; Include <machine/cpu> for the benefit of archs where it doesn't happen accidentally automagically. Pointed out by Havard.
1.1	10-Oct-2008	pooka	branches: 1.1.2; Add a simple percpu implementation (which isn't actually percpu at all, since we don't currently have the notion of "real" cpu in rump...but that's beyond the point).
1.1.2.2	10-Oct-2008	skrll	Sync with HEAD.
1.1.2.1	10-Oct-2008	skrll	file percpu.c was added on branch wrstuden-revivesa on 2008-10-10 22:36:16 +0000
1.2.4.2	28-Apr-2009	skrll	Sync with HEAD.
1.2.4.1	19-Jan-2009	skrll	Sync with HEAD.
1.2.2.2	19-Oct-2008	haad	Sync with HEAD.
1.2.2.1	11-Oct-2008	haad	file percpu.c was added on branch haad-dm on 2008-10-19 22:18:06 +0000
1.4.4.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.4.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.4.2.1	29-Dec-2008	mjf	file percpu.c was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.5.2.3	11-Mar-2010	yamt	sync with head
1.5.2.2	04-May-2009	yamt	sync with head.
1.5.2.1	18-Mar-2009	yamt	file percpu.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:29 +0000
1.26	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.25	02-Mar-2011	pooka	branches: 1.25.4; 1.25.14; 1.25.18; We track page modified info with PG_CLEAN, so make clear_modify return false. This makes rump lfs unmount work on platforms which use the pmap stub (i.e. non-x86, which already returned false here). Otherwise, lfs would hang itself trying to flush some buffers but couldn't fill a segment and therefore wouldn't actually write anything.
1.24	16-Jun-2010	pooka	branches: 1.24.2; 1.24.4; Reinstate the blanket pmap.h for archs which do not conform to the kernel ABI (i.e. not i386 or amd64). Due to the "half function, half macro, all noodles" nature of pmap.h, it's too entangling and too brittle to keep up with an ifdeffy MI implementation.
1.23	09-Nov-2009	nakayama	branches: 1.23.2; 1.23.4; - make this compile on sparc. - shrink blanks to fit in 80 columns.
1.22	07-Nov-2009	dsl	Fix stub prototype
1.21	22-Oct-2009	rmind	Simplify pmap_remove() a little by avoiding pmap_do_remove() layer, since possibility to skip wired mappings is not needed anymore. Apart from that, no functional differences are intended.
1.20	18-Sep-2009	pooka	vax macro magic requires Sysmap (untested). XXX: I should add the blanket userspace pmap back for vax, its pmap.h just has too many inlines and macros for this to ever work.
1.19	16-Aug-2009	skrll	s/int/u_int/ for flags in pmap_enter and deal with this in rump. Hi cegger.
1.18	16-Aug-2009	skrll	KNF
1.17	10-Aug-2009	martin	Use __sparc_v9__ instead of __sparc64__ - this hack is due to arch dependend pmap peculiarities, and does not cover sparc64 code when compiled with -m32.
1.16	09-Aug-2009	skrll	Fix vax. Built by default options really should be tested better.
1.15	08-Aug-2009	pooka	arm32 (but not arm26) wants to be different and #define pmap_remove() as pmap_do_remove(). Compensate.
1.14	06-Aug-2009	pooka	Add suicidal stubs for pmap_enter() and pmap_remove(). Hopefully the MD bits for all the glorious archs went right.
1.13	30-Apr-2009	skrll	Update to deal with the new hppa pmap.
1.12	23-Jan-2009	pooka	branches: 1.12.2; Add a compile-time option to use kmem/vmem/pools from the kernel sources instead of homegrown allocators. Default to "on", even though they appear to be a few percent slower at least on short jobs (e.g. untar to tmpfs).
1.11	17-Jan-2009	pooka	#ifdef __powerpc__ -> #ifdef PPC_OEA in previous. Forgot that powerpc has 57 billion different pmaps. (not compile-tested for a full build)
1.10	14-Jan-2009	pooka	Stub out some ppc routines to allow the evbppc build to pass through here.
1.9	18-Dec-2008	pooka	__KERNEL_RCSID
1.8	15-Dec-2008	pooka	Also assign a value to pmap_extract_p. (3rd time's the charm, maybe i finally got it right?)
1.7	15-Dec-2008	pooka	Fix another error in sparc pmap_extract_p, as prompted by mrg
1.6	13-Dec-2008	pooka	* fix pmap_extract() prototype * sparc64 also defines __sparc__. deal with it
1.5	12-Dec-2008	pooka	Add a few MD ifdefs into the rump pmap stubs to enable us to get rid of the local pmap.h and unify the pmap ABI with the kernel. (XXX: compiles but doesn't work on vax) Thanks once again to Greg Oster for helping with testbuilds.
1.4	10-Dec-2008	pooka	Make kernel_pmap_ptr a const. Requested by steve_martin.
1.3	09-Dec-2008	pooka	Make pmap_kernel() a MI macro for struct pmap *kernel_pmap_ptr, which is now the "API" provided by the pmap module. pmap_kernel() remains as the syntactic sugar. Bonus cosmetics round: move all the pmap_t pointer typedefs into uvm_pmap.h. Thanks to Greg Oster for providing cpu muscle for doing test builds.
1.2	15-Oct-2008	pooka	branches: 1.2.2; Add support bits necessary for rumpnet functionality.
1.1	09-Aug-2007	pooka	branches: 1.1.2; 1.1.4; 1.1.8; 1.1.14; 1.1.30; 1.1.34; 1.1.40; * compile subr_time.c from kern/ * some pmap stubs
1.1.40.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.1.40.1	19-Oct-2008	haad	Sync with HEAD.
1.1.34.4	11-Aug-2010	yamt	sync with head.
1.1.34.3	11-Mar-2010	yamt	sync with head
1.1.34.2	19-Aug-2009	yamt	sync with head.
1.1.34.1	04-May-2009	yamt	sync with head.
1.1.30.1	17-Jan-2009	mjf	Sync with HEAD.
1.1.14.2	02-Nov-2007	joerg	Reduce diff to HEAD by adding files forgotten in early merges.
1.1.14.1	09-Aug-2007	joerg	file pmap_stub.c was added on branch jmcneill-pm on 2007-11-02 12:43:52 +0000
1.1.8.2	03-Sep-2007	yamt	sync with head.
1.1.8.1	09-Aug-2007	yamt	file pmap_stub.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:32 +0000
1.1.4.2	20-Aug-2007	ad	Sync with HEAD.
1.1.4.1	09-Aug-2007	ad	file pmap_stub.c was added on branch vmlocking on 2007-08-20 22:07:29 +0000
1.1.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.1.2.1	09-Aug-2007	skrll	file pmap_stub.c was added on branch nick-csl-alignment on 2007-08-15 13:50:39 +0000
1.2.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.2.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.12.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.23.4.2	05-Mar-2011	rmind	sync with head
1.23.4.1	03-Jul-2010	rmind	sync with head
1.23.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.24.4.1	05-Mar-2011	bouyer	Sync with HEAD
1.24.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.25.18.1	18-May-2014	rmind	sync with head
1.25.14.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.25.4.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.16	04-Nov-2009	pooka	Pull all relegating memory allocators under a common roof in memalloc.c
1.15	13-Sep-2009	pooka	remove pool link set attach code
1.14	03-Jun-2009	pooka	pool_prime emulation
1.13	24-Apr-2009	pooka	* init pool linksets, makes proplib work. reported by Arnaud Ysmal. (linksets, sigh) * reduce #ifdef for RUMP_USE_REAL_ALLOCATORS
1.12	23-Jan-2009	pooka	branches: 1.12.2; Add a compile-time option to use kmem/vmem/pools from the kernel sources instead of homegrown allocators. Default to "on", even though they appear to be a few percent slower at least on short jobs (e.g. untar to tmpfs).
1.11	18-Dec-2008	pooka	__KERNEL_RCSID
1.10	14-Oct-2008	pooka	branches: 1.10.2; score some stubs
1.9	04-Aug-2008	pooka	Add support for using real kmem/vmem. Don't enable it by default, though, since it a) is a lot of unnecessary indirection in rump b) requires callouts which are so far unimplemented.
1.8	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.7	23-Mar-2008	rmind	branches: 1.7.4; 1.7.6; 1.7.8; 1.7.10; pool_cache_init: Remove the alignment of pc according to the CACHE_LINE_SIZE, which is not useful for rump. This fixes the pool_cache_destroy() which was freeing the modified pointer, instead of the original one. OK by <pooka>.
1.6	03-Jan-2008	pooka	branches: 1.6.6; Theoretically this is supposed to be interchangeable with real kernel code. Use kmem_alloc/free instead of some wily homerolled rump interfaces for memory allocation.
1.5	02-Jan-2008	pooka	Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.4	07-Nov-2007	pooka	branches: 1.4.6; fix pool cache line alignment code (hi ad)
1.3	07-Nov-2007	ad	Merge from vmlocking: - pool_cache changes. - Debugger/procfs locking fixes. - Other minor changes.
1.2	14-Aug-2007	pooka	branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8; 1.2.12; 1.2.14; 1.2.16; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file pool.c was added on branch matt-mips64 on 2007-08-05 22:28:10 +0000
1.2.16.2	18-Feb-2008	mjf	Sync with HEAD.
1.2.16.1	19-Nov-2007	mjf	Sync with HEAD.
1.2.14.3	11-Nov-2007	joerg	Sync with HEAD.
1.2.14.2	02-Nov-2007	joerg	Reduce diff to HEAD by adding files forgotten in early merges.
1.2.14.1	14-Aug-2007	joerg	file pool.c was added on branch jmcneill-pm on 2007-11-02 12:43:53 +0000
1.2.12.1	13-Nov-2007	bouyer	Sync with HEAD
1.2.8.5	24-Mar-2008	yamt	sync with head.
1.2.8.4	21-Jan-2008	yamt	sync with head
1.2.8.3	15-Nov-2007	yamt	sync with head.
1.2.8.2	03-Sep-2007	yamt	sync with head.
1.2.8.1	14-Aug-2007	yamt	file pool.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:32 +0000
1.2.6.2	09-Jan-2008	matt	sync with HEAD
1.2.6.1	08-Nov-2007	matt	sync with -HEAD
1.2.4.2	20-Aug-2007	ad	Sync with HEAD.
1.2.4.1	14-Aug-2007	ad	file pool.c was added on branch vmlocking on 2007-08-20 22:07:29 +0000
1.2.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.2.2.1	14-Aug-2007	skrll	file pool.c was added on branch nick-csl-alignment on 2007-08-15 13:50:40 +0000
1.4.6.2	08-Jan-2008	bouyer	Sync with HEAD
1.4.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.6.6.3	17-Jan-2009	mjf	Sync with HEAD.
1.6.6.2	28-Sep-2008	mjf	Sync with HEAD.
1.6.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.7.10.1	19-Oct-2008	haad	Sync with HEAD.
1.7.8.1	31-Jul-2008	simonb	Sync with head.
1.7.6.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.7.4.4	11-Mar-2010	yamt	sync with head
1.7.4.3	16-Sep-2009	yamt	sync with head
1.7.4.2	20-Jun-2009	yamt	sync with head
1.7.4.1	04-May-2009	yamt	sync with head.
1.10.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.10.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.10.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.12.2.2	23-Jul-2009	jym	Sync with HEAD.
1.12.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.12	02-Dec-2014	pooka	branches: 1.12.16; most of this manpage moved to rumpkernel.7, so simplify a lot
1.11	09-Nov-2014	pooka	branches: 1.11.2; Move rump kernel man pages from various sources to sys/rump namely: * src/lib is used only when building for POSIX'y platforms, but the man pages have their use for all platforms * rumpuser.3 is a function of the rump kernel, not one of the of the POSIX'y implementation hosted in src/lib/librumpuser no functional change
1.10	27-Aug-2010	pooka	Move the manpage from the kernel sources into lib, 'cause that's where it's used.
1.9	26-Aug-2010	pooka	update a bit
1.8	11-May-2010	pooka	drop silly backronym. just rump.
1.7	02-May-2010	pooka	ABC2010 paper
1.6	19-Oct-2009	pooka	branches: 1.6.2; 1.6.4; add Arnaud's EuroBSDCon paper
1.5	30-Jun-2009	pooka	add reference
1.4	28-May-2009	wiz	Use Nx for NetBSD.
1.3	24-May-2009	pooka	Add BSDCan 2009 paper to SEE ALSO.
1.2	22-Mar-2009	pooka	branches: 1.2.2; reference to ABC2009 paper
1.1	28-Jul-2008	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; 1.1.16; Backup some manual page sketches lest I delete the wrong source tree.
1.1.16.2	23-Jul-2009	jym	Sync with HEAD.
1.1.16.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.1.10.1	28-Apr-2009	skrll	Sync with HEAD.
1.1.8.2	19-Oct-2008	haad	Sync with HEAD.
1.1.8.1	28-Jul-2008	haad	file rump.3 was added on branch haad-dm on 2008-10-19 22:18:06 +0000
1.1.6.2	28-Sep-2008	mjf	Sync with HEAD.
1.1.6.1	28-Jul-2008	mjf	file rump.3 was added on branch mjf-devfs2 on 2008-09-28 10:41:03 +0000
1.1.4.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.1.4.1	28-Jul-2008	wrstuden	file rump.3 was added on branch wrstuden-revivesa on 2008-09-18 04:37:04 +0000
1.1.2.2	31-Jul-2008	simonb	Sync with head.
1.1.2.1	28-Jul-2008	simonb	file rump.3 was added on branch simonb-wapbl on 2008-07-31 04:51:05 +0000
1.2.2.7	09-Oct-2010	yamt	sync with head
1.2.2.6	11-Aug-2010	yamt	sync with head.
1.2.2.5	11-Mar-2010	yamt	sync with head
1.2.2.4	18-Jul-2009	yamt	sync with head.
1.2.2.3	20-Jun-2009	yamt	sync with head
1.2.2.2	04-May-2009	yamt	sync with head.
1.2.2.1	22-Mar-2009	yamt	file rump.3 was added on branch yamt-nfs-mp on 2009-05-04 08:14:29 +0000
1.6.4.2	05-Mar-2011	rmind	sync with head
1.6.4.1	30-May-2010	rmind	sync with head
1.6.2.2	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.6.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.11.2.1	06-Apr-2015	skrll	Sync with HEAD
1.12.16.2	03-Dec-2017	jdolecek	update from HEAD
1.12.16.1	02-Dec-2014	jdolecek	file rump.3 was added on branch tls-maxphys on 2017-12-03 11:39:16 +0000
1.361	05-Oct-2023	ad	Arrange to update cached LWP credentials in userret() rather than during syscall/trap entry, eliminating a test+branch on every syscall/trap. This wasn't possible in the 3.99.x timeframe when l->l_cred came about because there wasn't a reliable/timely way to force an ONPROC LWP running on a remote CPU into the kernel (which is just about the only new thing in this scheme).
1.360	23-Sep-2023	ad	Repply this change with a couple of bugs fixed: - Do away with separate pool_cache for some kernel objects that have no special requirements and use the general purpose allocator instead. On one of my test systems this makes for a small (~1%) but repeatable reduction in system time during builds presumably because it decreases the kernel's cache / memory bandwidth footprint a little. - vfs_lockf: cache a pointer to the uidinfo and put mutex in the data segment.
1.359	12-Sep-2023	ad	Back out recent change to replace pool_cache with then general allocator. Will return to this when I have time again.
1.358	10-Sep-2023	ad	- Do away with separate pool_cache for some kernel objects that have no special requirements and use the general purpose allocator instead. On one of my test systems this makes for a small (~1%) but repeatable reduction in system time during builds presumably because it decreases the kernel's cache / memory bandwidth footprint a little. - vfs_lockf: cache a pointer to the uidinfo and put mutex in the data segment.
1.357	05-Aug-2023	riastradh	Revert "rump: Set mp_online = true and start threads _after_ cold = 0." This breaks some tests, e.g. dev/scsipi/t_cd:noisyeject, which relies on config_finalize to wait for driver threads. Trouble is, the actual setting of cold=0 happens near the call to config_finalize in RUMP__FACTION_DEV. Need to think harder about this.
1.356	05-Aug-2023	riastradh	rump: Set mp_online = true and start threads _after_ cold = 0. Otherwise we may have threads running while cold, which is a contradiction in terms. Deferring mp_online = true is necessary because things like xcall(9) use rely on it to decide whether to wait for threads on other CPUs.
1.355	28-Mar-2022	christos	no need to include suser; it gets autoloaded as a module.
1.354	28-Mar-2022	riastradh	sys: Split struct device into a private device_impl.h. Include this only inside autoconf itself, and a few files that abuse autoconf in ways I can't confidently make easy fixes for. XXX kernel ABI change requires bump -- no more use of struct device internals allowed, previously done by some drivers
1.353	17-Jan-2021	chs	rump_component_init() is called recursively, so LIST_FOREACH_SAFE is not actually safe, since the recursive calls can result in elements other than the current element being removed from the list. instead use an explicit marker element to do safe list traversal.
1.352	16-Jan-2021	chs	remove a const to allow building with QUEUEDEBUG.
1.351	06-Dec-2020	skrll	Fix build after interval timers refectoring by thorpej@
1.350	04-Nov-2020	christos	PR/55781: Ruslan Nikolaev: rump_init() does differentiate when all CPUs are initialized
1.349	11-Jun-2020	kamil	branches: 1.349.2; Follow the syscall() logic and mask unsupported syscall ranges in rump Avoids invalid pointer dereference from too large syscall numbers.
1.348	23-May-2020	ad	Move proc_lock into the data segment. It was dynamically allocated because at the time we had mutex_obj_alloc() but not __cacheline_aligned.
1.347	30-Apr-2020	riastradh	Rewrite entropy subsystem. Primary goals: 1. Use cryptography primitives designed and vetted by cryptographers. 2. Be honest about entropy estimation. 3. Propagate full entropy as soon as possible. 4. Simplify the APIs. 5. Reduce overhead of rnd_add_data and cprng_strong. 6. Reduce side channels of HWRNG data and human input sources. 7. Improve visibility of operation with sysctl and event counters. Caveat: rngtest is no longer used generically for RND_TYPE_RNG rndsources. Hardware RNG devices should have hardware-specific health tests. For example, checking for two repeated 256-bit outputs works to detect AMD's 2019 RDRAND bug. Not all hardware RNGs are necessarily designed to produce exactly uniform output. ENTROPY POOL - A Keccak sponge, with test vectors, replaces the old LFSR/SHA-1 kludge as the cryptographic primitive. - `Entropy depletion' is available for testing purposes with a sysctl knob kern.entropy.depletion; otherwise it is disabled, and once the system reaches full entropy it is assumed to stay there as far as modern cryptography is concerned. - No `entropy estimation' based on sample values. Such `entropy estimation' is a contradiction in terms, dishonest to users, and a potential source of side channels. It is the responsibility of the driver author to study the entropy of the process that generates the samples. - Per-CPU gathering pools avoid contention on a global queue. - Entropy is occasionally consolidated into global pool -- as soon as it's ready, if we've never reached full entropy, and with a rate limit afterward. Operators can force consolidation now by running sysctl -w kern.entropy.consolidate=1. - rndsink(9) API has been replaced by an epoch counter which changes whenever entropy is consolidated into the global pool. . Usage: Cache entropy_epoch() when you seed. If entropy_epoch() has changed when you're about to use whatever you seeded, reseed. . Epoch is never zero, so initialize cache to 0 if you want to reseed on first use. . Epoch is -1 iff we have never reached full entropy -- in other words, the old rnd_initial_entropy is (entropy_epoch() != -1) -- but it is better if you check for changes rather than for -1, so that if the system estimated its own entropy incorrectly, entropy consolidation has the opportunity to prevent future compromise. - Sysctls and event counters provide operator visibility into what's happening: . kern.entropy.needed - bits of entropy short of full entropy . kern.entropy.pending - bits known to be pending in per-CPU pools, can be consolidated with sysctl -w kern.entropy.consolidate=1 . kern.entropy.epoch - number of times consolidation has happened, never 0, and -1 iff we have never reached full entropy CPRNG_STRONG - A cprng_strong instance is now a collection of per-CPU NIST Hash_DRBGs. There are only two in the system: user_cprng for /dev/urandom and sysctl kern.?random, and kern_cprng for kernel users which may need to operate in interrupt context up to IPL_VM. (Calling cprng_strong in interrupt context does not strike me as a particularly good idea, so I added an event counter to see whether anything actually does.) - Event counters provide operator visibility into when reseeding happens. INTEL RDRAND/RDSEED, VIA C3 RNG (CPU_RNG) - Unwired for now; will be rewired in a subsequent commit.
1.346	25-Apr-2020	bouyer	Merge the bouyer-xenpvh branch, bringing in Xen PV drivers support under HVM guests in GENERIC. Xen support can be disabled at runtime with boot -c disable hypervisor
1.345	23-Apr-2020	joerg	rump doesn't own pnbuf_cache, externalize it
1.344	23-Mar-2020	pgoyette	branches: 1.344.2; Don't attempt to detach an evcnt before attaching it. If its not already attached, we will panic. It turns out that this check wasn't really needed anyway, it was simply paranoia on my part. Thanks to hannken@ for bringing this to my attention.
1.343	22-Mar-2020	pgoyette	Teach rump to process __link_set_evcnts entries. (Second part of fix for PR kern/55088)
1.342	22-Feb-2020	ad	rump_init(): need to call config_init() now. PR kern/55004 (Hundreds of file system tests now fail on real hardware)
1.341	18-Feb-2020	chs	remove the aiodoned thread. I originally added this to provide a thread context for doing page cache iodone work, but since then biodone() has changed to hand off all iodone work to a softint thread, so we no longer need the special-purpose aiodoned thread.
1.340	10-Feb-2020	riastradh	Initialize struct cpu_info::ci_cpuname (= ci_data.cpu_name) in rump.
1.339	02-Jan-2020	thorpej	branches: 1.339.2; - Eliminate the global "boottime" variable, which was being accessed without any synchronization against changes by e.g. clock_settime(). - Replace with new getbinboottime() / getnanoboottime() / getmicroboottime() functions (naming mirrors that of other time access functions in kern_tc.c). It returns the (maybe-converted) value of timebasebin, which also tracks our estimate of when the system was booted (i.e. the legacy "boottime" was redundant). XXX There needs to be a lockless synchronization mechanism for reading timebasebin, but this is a problem in kern_tc.c that pre-existed these "boottime" changes. At least now the problem is centralized in one location.
1.338	15-Dec-2019	pgoyette	Initialize the module_hook synchronization variables in rump, too. Fixes recently reported test failures for dev/sysmon/t_swsensor and net/if_vlan/t_vlan
1.337	07-Dec-2019	riastradh	Restore call to pserialize_init. We need it after all for psz_lock on the event counter.
1.336	03-Dec-2019	riastradh	Rip out pserialize(9) logic now that the RCU patent has expired. pserialize_perform() is now basically just xc_barrier(XC_HIGHPRI). No more tentacles throughout the scheduler. Simplify the psz read count for diagnostic assertions by putting it unconditionally into cpu_info. From rmind@, tidied up by me.
1.335	15-Oct-2019	christos	Add a function cast for enosys
1.334	17-May-2019	ozaki-r	Implement an aggressive psref leak detector It is yet another psref leak detector that enables to tell where a leak occurs while a simpler version that is already committed just tells an occurrence of a leak. Investigating of psref leaks is hard because once a leak occurs a percpu list of psref that tracks references can be corrupted. A reference to a tracking object is memorized in the list via an intermediate object (struct psref) that is normally allocated on a stack of a thread. Thus, the intermediate object can be overwritten on a leak resulting in corruption of the list. The tracker makes a shadow entry to an intermediate object and stores some hints into it (currently it's a caller address of psref_acquire). We can detect a leak by checking the entries on certain points where any references should be released such as the return point of syscalls and the end of each softint handler. The feature is expensive and enabled only if the kernel is built with PSREF_DEBUG. Proposed on tech-kern
1.333	29-Mar-2019	christos	fix the build (pnbuf_cache move to vfs_init.c)
1.332	26-Dec-2018	thorpej	Rather than performing lazy initialization, statically initialize early in the respective kernel startup routines.
1.331	09-Jan-2018	msaitoh	branches: 1.331.2; 1.331.4; Set mp_online = ture. I don't know the "best" location to set it true. This change might fix PR#52886.
1.330	21-Nov-2017	ozaki-r	Implement debugging feature for pserialize(9) The debugging feature detects violations of pserialize constraints. It causes a panic: - if a context switch happens in a read section, or - if a sleepable function is called in a read section. The feature is enabled only if LOCKDEBUG is on. Discussed on tech-kern@
1.329	08-Mar-2016	joerg	branches: 1.329.2; 1.329.8; 1.329.10; Align the message buffer. The kernel routines normally are used only with page aligned buffers and they assume at least pointer alignment. Be defensive here and align to 256 Bytes.
1.328	08-Feb-2016	pooka	Allocate struct cpu_info dynamically. Saves quite a lot of BSS in the common case and reduces rump kernel memory requirements by 10% or more in really tiny deployments.
1.327	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.326	18-Jan-2016	pooka	Fix dlopen()/dlclose()+RUMP_USE_CTOR to not leave dangling pointers around.
1.325	31-Aug-2015	ozaki-r	Allow rumpkernel to use rw_obj_*
1.324	25-Aug-2015	pooka	initialize ncpuonline
1.323	25-Aug-2015	pooka	remove mksysctls(), now provided by init_sysctl_base
1.322	07-Jul-2015	justin	Move hw.machine and hw.machine_arch sysctls to base so rump can use them This allows uname(3) and uname(1) to work on rump kernels.
1.321	08-Jun-2015	pooka	Allow device components to create symlinks in /dev e.g. /dev/audio -> audio0 from Robert Millan <rmh@freebsd.org> via rumpkernel-users
1.320	20-May-2015	pooka	call loginit() later, a lot later
1.319	22-Apr-2015	pooka	Define rump_nativeabi_p() under arch, where one would logically expect it to be defined.
1.318	17-Apr-2015	pooka	set the local clients' comm to "rumplocal" instead of "system"
1.317	13-Apr-2015	riastradh	Convert remaining MI <sys/rnd.h> stragglers. Many MD ones left.
1.316	06-Feb-2015	maxv	Kill kmeminit().
1.315	07-Jan-2015	pooka	Move sysproxy support into a separate component, rumpkern_sysproxy, instead of it being always provided by the rump kernel base. This move accomplishes two things: 1) it is no longer necessary to provide sysproxy hypercall stubs for platforms which do not want to use sysproxy 2) it is easier to reason about the security aspects, since configurations not linking the sysproxy component simply do not support remote system calls discussed on rumpkernel-users
1.314	04-Jan-2015	pooka	Extend RUMP_USE_CTOR to SYSCTL_SETUP(), similar to what is already done in MODULE(). The sysctl tree nodes from all components which were loaded when rump_init() was called now get created -- mimics the monolithic kernel. No change to the monolithic kernel.
1.313	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.312	25-Aug-2014	pooka	branches: 1.312.2; Remove and obsolete rumpkern_time as a separate component.
1.311	25-Aug-2014	pooka	No longer create a special process context to fork remote clients off of, simply always rfork off of proc1 closing all descriptors, and have the rump kernel open 0/1/2 if the parent process is "1". Fixes tests/rump/rumpkernel/t_sp, which was failing since the abovementioned special process change due to attempting to deliver a signal to the special process and the special process was not equipped to handle one.
1.310	14-Aug-2014	riastradh	Restore placement of percpu_init in rump_init. Probably doesn't matter, but let's avoid needless churn around the real bug fix.
1.309	14-Aug-2014	riastradh	Defer cprng_fast_init until CPUs are detected.
1.308	11-Aug-2014	ozaki-r	branches: 1.308.2; Do cprng_fast_init in rump_init It fixes rump bootup failure: panic: kernel diagnostic assertion "off < percpu_nextoff" failed: file "/usr/src/lib/librump/../../sys/rump/../kern/subr_percpu.c", line 76
1.307	29-Jun-2014	justin	Change assertion as rump_component_load may be called before curlwp available
1.306	13-Jun-2014	pooka	Add rump_boot_etfs_register(), which can be used to specify etfs nodes that will be available immediately when mountroot is done and file systems are available. The intended use is for example for firmware images to be available when config_mountroot() hooks run.
1.305	25-May-2014	pooka	Call biodone() in the bdev_strategy() error via a pointer. Decouples subr_devsw from VFS -- not that I/O buffers are _VFS_ entities -- and eliminates the last weak alias from librump, which means things now fully work on glibc (w/o LD_DYNAMIC_WEAK) and musl. The whole code path is suspect anyway, since nothing prevents the device from escaping after the lookup, suggesting that the whole error path should be handled by the caller, but oh well.
1.304	27-Apr-2014	pooka	Eliminate weak symbols from rump kernel syscall handlers, part 4: Do not query system call handlers by using the rumpuser_dl_globalsym() hypercall -- it will not work in environments which are not in control of their own symbols (e.g. rumpuser-xen). Instead, provide rump_syscall_boot_establish(), which component constructors can use to establish their non-modular syscalls.
1.303	26-Apr-2014	pooka	kill weak aliases which are no longer necessary
1.302	25-Apr-2014	pooka	cpu_reboot() is more of an emul.c thing than a rump.c thing
1.301	25-Apr-2014	pooka	gardenize rump.c: move data structure helper routines to accessors.c
1.300	25-Apr-2014	pooka	gardenizing rump.c: move rump_lockdebug to locks.c
1.299	25-Apr-2014	pooka	Init function pointers to nullop() so that callers don't need a dance
1.298	25-Apr-2014	pooka	g/c no longer necessary weak alias
1.297	25-Apr-2014	pooka	Move the etfs linkage from rumpvfs to rumpkern, and replace the weak alias show with an honest pointer indirection. No client-visible change. (apart from this version working e.g. on musl w/ dlopen)
1.296	23-Apr-2014	pooka	Add a RUMP_USE_CTOR compile-time switch. If defined, use __attribute__((constructor)) to determine which rump kernel components and kernel modules are linked into the rump kernel. If not defined (default), use the regular approach with link sets. This option is aimed to fix problems with toolchains where using link sets is not possible because the linker does not generate the requisite __start/__stop symbols for the link set sections (e.g. GNU gold, OS X, ...).
1.295	23-Apr-2014	pooka	Include LIST_ENTRY() in "struct rump_component". Main benefit: rump_component_load() can now be called from an early-running constructor since the routine doesn't need to allocate memory.
1.294	09-Apr-2014	pooka	implement lwp_create() and a few related interfaces. main raison d'impalerment: the aio driver
1.293	09-Apr-2014	pooka	initialize exec_lock
1.292	02-Apr-2014	pooka	branches: 1.292.2; Put nanosleep() and folks in librump instead of maintaining them in the separate rumpkern_time component. Keeping time-related routines elsewhere lead to some illogical behavior if you didn't think of linking in rumpkern_time (hands up everyone who checks the return value of nanosleep()). Add warnings if rumpkern_time is linked or used. I'll remove it in a month or two instead of now since it was part of a buildrump.sh snapshot and it's nicer if trying to use it gives a warning instead of an error in the next snapshot. "everything should be as modular as possible, but no more modular than that"
1.291	20-Mar-2014	christos	kill sprintf
1.290	15-Mar-2014	pooka	Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.289	10-Mar-2014	pooka	rump_getversion() does not require a thread context, so make it a straight call instead of being wrapped around rump_pub_getversion().
1.288	10-Mar-2014	pooka	Move the "is arch capable of loading native kernel modules into rump kernel" clauses from bsd.own.mk to Makefile.rump. Also, add a rump_nativeabi_p() call to determine if rump kernel is compiled with native ABI support.
1.287	28-Feb-2014	skrll	G/C sys/simplelock.h includes
1.286	25-Feb-2014	pooka	Ensure that the top level sysctl nodes (kern, vfs, net, ...) exist before the sysctl link sets are processed, and remove redundancy. Shaves >13kB off of an amd64 GENERIC, not to mention >1k duplicate lines of code.
1.285	25-Feb-2014	justin	Add kern.{ostype,osrelease,osrevision,version} kern.domainname, kern.rawpartition sysctl support to rump kernel. Moved the sysctl support that is shared between rump and normal kernels to init_sysctl_base.c as rump cannot use init_sysctl.c in order to avoid code duplication. Agreed with pooka@.
1.284	29-Jan-2014	pooka	lwp0 needs l_proc set for panic->cpu_reboot to dump core the right way
1.283	17-Jan-2014	pooka	sysctl_init needs to be pretty much at the top of main()
1.282	17-Jan-2014	pooka	Use subr_cprng.c instead of stub implementation. Rijndael migrates from rumpkern_crypto to rumpkern due to it being mandatory for cprng.
1.281	16-Dec-2013	pooka	Translate return values for emulations, e.g. Linux. For ports without __HAVE_MINIMAL_EMUL, we simply look up the values from p->p_emul->e_errno. For ports which cannot afford to keep an extra pointer per emul structure around, we hope there is __HAVE_SYSCALL_INTERN support and thread the errno values through p_emuldata. Notably, we cannot alter the syscall method like most ports do with syscall_intern, since they do it via p_mdproc, so MI code is not possible there.
1.280	09-Dec-2013	pooka	Make ktrace a compile-time option
1.279	09-Dec-2013	pooka	need ktrace.h now
1.278	09-Dec-2013	pooka	Support ktrace for rump kernels. Requested by Justin Cormack on rumpkernel-users.
1.277	09-Dec-2013	pooka	Use sy_invoke() instead of sy_call() directly.
1.276	18-Nov-2013	njoly	Do lwp0 initialisation as early as possible, right after rumpuser_init(). This makes rump applications work again when RUMP_LOCKDEBUG is enabled. ok pooka.
1.275	09-Sep-2013	pooka	Fix minor bug in previous: make sure we come out of rump_init() without a bound lwp set.
1.274	07-Sep-2013	pooka	Add an initial console device and open fd's 0/1/2 for initproc. This is again useful in standalone-type environments such as Xen, where all printf/etc calls go through the rump kernel.
1.273	04-Sep-2013	pooka	Also create hw.pagesize, makes sysconf(_SC_PAGESIZE) return a more sensible result.
1.272	03-Sep-2013	pooka	Don't autogenerate the wrapper that is called from the rump kernel local syscall entry points. The wrapper is now so big that it doesn't get inlined (original intent for having it close to the entry points), and autogenerating a regular function just loses in flexibility.
1.271	03-Jul-2013	njoly	Make RUMP_LOCKDEBUG work again. With some help from pooka@.
1.270	31-May-2013	pooka	branches: 1.270.2; run shutdownhooks
1.269	15-May-2013	pooka	Add RUMPUSER_LWP_CLEAR instead of overloading RUMPUSER_LWP_SET. This simplifies some alternative hypervisor implementations.
1.268	02-May-2013	pooka	Ok, maybe using int64 for nanoseconds in the (sec,nsec) tuple was a bit too future-proof. I think long is enough there (let's just hope nobody redefines "nano"). Also, make seconds signed just in case someone wants their clock to be in 1901.
1.267	02-May-2013	pooka	Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.266	30-Apr-2013	pooka	Flip parameter order in the clock hypercalls to make them consistent with everything else wrt in/out parameters.
1.265	29-Apr-2013	pooka	Make rumpuser_dl_bootstrap() optional for platforms which don't provide dynamic linking.
1.264	29-Apr-2013	pooka	Replace the various "get info from hypervisor" interfaces with one unified rumpuser_getparam(), and make it return a plist. The contents can come e.g. from the env or a config file. Make identifiers starting with an underscore denote system identifiers which must be implemented by hypervisor. (yea, j/k about the plist bit)
1.263	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.262	28-Apr-2013	pooka	Improve the time-related hypercalls so that's it's possible to sleep until an absolute time on the host's monotonic clock (should something like that be supported).
1.261	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.260	27-Apr-2013	pooka	wrap unportable register_t with a long. should do it in the front of the house too, but at least this is a start.
1.259	27-Apr-2013	pooka	Get rid of the rump__init() macro. it was never useful and just makes debugging less obvious.
1.258	27-Apr-2013	pooka	* integrate rumpuser_getversion() with the hypervisor initialization * rename some identifiers to better match reality
1.257	10-Mar-2013	pooka	Use kern_malloc.c instead of the relegated allocators in memalloc.c. Previously this didn't make sense due to the use of kmem_map, but the new malloc is more dynamic and puts sense into using it.
1.256	10-Mar-2013	pooka	Don't allow kernel threads to run before all CPUs have been initialized to avoid them getting scheduled on non-initialized CPUs.
1.255	08-Mar-2013	pooka	Ensure that rump kernel component constructors from the main object get processed. This applies to ones which were linked statically. Unfortunately, that's where it got a bit tricky, since the dlsym() interface searches the handle and all its dependencies. For the main object the list of dependencies includes all the dynamic rump kernel components that were included when the binary is linked. So, a long story short, make only one pass through the objects to harvest all the component entries, weed out the dupes, and initialize components from an in-memory dupe-free list when so requested.
1.254	07-Mar-2013	pooka	Make the device node creation routines function pointers which default to nullop without VFS. This relaxes the dependency between VFS and many components, some of which can be used perfectly fine without VFS.
1.253	07-Mar-2013	pooka	Force references to the component setlist __start/__stop symbols so that they get generated for rump kernels constructed from static libs.
1.252	03-Mar-2013	pooka	Add a dummy component to ensure that at least one component is present in every possible rump kernel configuration.
1.251	19-Feb-2013	martin	Stopgap fix to make rump cooperate with pserialize, may be revisited later. Patch from pooka, ok: rmind. No related regressions in a complete atf test run (which works again with this, even on non x86 SMP machines).
1.250	14-Jan-2013	pooka	fix typo
1.249	14-Jan-2013	pooka	Don't use __weak_alias where the component framework is sufficient.
1.248	14-Jan-2013	pooka	Add some asserts to component initialization.
1.247	09-Oct-2012	pooka	Gather some statistics about biglock usage.
1.246	16-Aug-2012	pgoyette	branches: 1.246.2; Use correct routine name - kcpuset_sysinit() vs kcpuset_init()
1.245	16-Aug-2012	pgoyette	We also need kcpuset_init() now.
1.244	16-Aug-2012	pgoyette	It helps to include the declaration of the routine being called.
1.243	16-Aug-2012	pgoyette	Call pserialize_init() during rump start-up, since librump/net/npf uses it.
1.242	09-Jun-2012	christos	since uidinfo uses sysctl now, move sysctl initialization before it.
1.241	03-Jun-2012	dsl	Fix build now that sysctl_createv() checks its arg type.
1.240	04-Feb-2012	njoly	branches: 1.240.2; Now that rnd is not optional anymore, add needed rnd_init() for rump. Fix dev/{scsipi,sysmon} testcases.
1.239	29-Jan-2012	njoly	Move pool subsystem init from rump__init() to uvm_init(), following kernel code. Fix RUMP_LOCKDEBUG early panic.
1.238	04-Dec-2011	jym	Implement the register/deregister/evaluation API for secmodel(9). It allows registration of callbacks that can be used later for cross-secmodel "safe" communication. When a secmodel wishes to know a property maintained by another secmodel, it has to submit a request to it so the other secmodel can proceed to evaluating the request. This is done through the secmodel_eval(9) call; example: bool isroot; error = secmodel_eval("org.netbsd.secmodel.suser", "is-root", cred, &isroot); if (error == 0 && !isroot) result = KAUTH_RESULT_DENY; This one asks the suser module if the credentials are assumed to be root when evaluated by suser module. If the module is present, it will respond. If absent, the call will return an error. Args and command are arbitrarily defined; it's up to the secmodel(9) to document what it expects. Typical example is securelevel testing: when someone wants to know whether securelevel is raised above a certain level or not, the caller has to request this property to the secmodel_securelevel(9) module. Given that securelevel module may be absent from system's context (thus making access to the global "securelevel" variable impossible or unsafe), this API can cope with this absence and return an error. We are using secmodel_eval(9) to implement a secmodel_extensions(9) module, which plugs with the bsd44, suser and securelevel secmodels to provide the logic behind curtain, usermount and user_set_cpu_affinity modes, without adding hooks to traditional secmodels. This solves a real issue with the current secmodel(9) code, as usermount or user_set_cpu_affinity are not really tied to secmodel_suser(9). The secmodel_eval(9) is also used to restrict security.models settings when securelevel is above 0, through the "is-securelevel-above" evaluation: - curtain can be enabled any time, but cannot be disabled if securelevel is above 0. - usermount/user_set_cpu_affinity can be disabled any time, but cannot be enabled if securelevel is above 0. Regarding sysctl(7) entries: curtain and usermount are now found under security.models.extensions tree. The security.curtain and vfs.generic.usermount are still accessible for backwards compat. Documentation is incoming, I am proof-reading my writings. Written by elad@, reviewed and tested (anita test + interact for rights tests) by me. ok elad@. See also http://mail-index.netbsd.org/tech-security/2011/11/29/msg000422.html XXX might consider va0 mapping too. XXX Having a secmodel(9) specific printf (like aprint_*) for reporting secmodel(9) errors might be a good idea, but I am not sure on how to design such a function right now.
1.237	01-Dec-2011	tls	branches: 1.237.2; Initialize the kern_cprng in rump startup. Oops. Should fix some "mysterious" rump test failures. Thanks to Nicholas Joly for pointing out exactly what was wrong.
1.236	26-Nov-2011	njoly	Do not call cprng_fast32() before locks init. Makes rump build with RUMP_LOCKDEBUG=yes work again.
1.235	19-Nov-2011	tls	First step of random number subsystem rework described in <20111022023242.BA26F14A158@mail.netbsd.org>. This change includes the following: An initial cleanup and minor reorganization of the entropy pool code in sys/dev/rnd.c and sys/dev/rndpool.c. Several bugs are fixed. Some effort is made to accumulate entropy more quickly at boot time. A generic interface, "rndsink", is added, for stream generators to request that they be re-keyed with good quality entropy from the pool as soon as it is available. The arc4random()/arc4randbytes() implementation in libkern is adjusted to use the rndsink interface for rekeying, which helps address the problem of low-quality keys at boot time. An implementation of the FIPS 140-2 statistical tests for random number generator quality is provided (libkern/rngtest.c). This is based on Greg Rose's implementation from Qualcomm. A new random stream generator, nist_ctr_drbg, is provided. It is based on an implementation of the NIST SP800-90 CTR_DRBG by Henric Jungheim. This generator users AES in a modified counter mode to generate a backtracking-resistant random stream. An abstraction layer, "cprng", is provided for in-kernel consumers of randomness. The arc4random/arc4randbytes API is deprecated for in-kernel use. It is replaced by "cprng_strong". The current cprng_fast implementation wraps the existing arc4random implementation. The current cprng_strong implementation wraps the new CTR_DRBG implementation. Both interfaces are rekeyed from the entropy pool automatically at intervals justifiable from best current cryptographic practice. In some quick tests, cprng_fast() is about the same speed as the old arc4randbytes(), and cprng_strong() is about 20% faster than rnd_extract_data(). Performance is expected to improve. The AES code in src/crypto/rijndael is no longer an optional kernel component, as it is required by cprng_strong, which is not an optional kernel component. The entropy pool output is subjected to the rngtest tests at startup time; if it fails, the system will reboot. There is approximately a 3/10000 chance of a false positive from these tests. Entropy pool _input_ from hardware random numbers is subjected to the rngtest tests at attach time, as well as the FIPS continuous-output test, to detect bad or stuck hardware RNGs; if any are detected, they are detached, but the system continues to run. A problem with rndctl(8) is fixed -- datastructures with pointers in arrays are no longer passed to userspace (this was not a security problem, but rather a major issue for compat32). A new kernel will require a new rndctl. The sysctl kern.arandom() and kern.urandom() nodes are hooked up to the new generators, but the /dev/*random pseudodevices are not, yet. Manual pages for the new kernel interfaces are forthcoming.
1.234	22-Mar-2011	pooka	branches: 1.234.4; pnbuf_cache is used all over the place outside of vfs, so put it in one place to avoid many definitions.
1.233	21-Mar-2011	pooka	Update copyright statements. no functional change.
1.232	08-Mar-2011	pooka	Nuke all threads belonging to a process calling exec before allowing the exec handshake to return. In addition to being The Right Thing To Do, fixes some nasty conditions for CLOEXEC fd's (or at least does so in theory, I couldn't create any problems although I tried).
1.231	15-Feb-2011	pooka	Support FD_CLOEXEC in rump kernels.
1.230	15-Feb-2011	pooka	Add an "exec" callback for the proxy code. The client can now notify the rump kernel of an exec having taken place.
1.229	10-Feb-2011	pooka	zalloc struct vmspace to avoid having one full of garbage
1.228	03-Feb-2011	pooka	weakalias the "withsize" variant of rump_pub_etfs_register too
1.227	30-Jan-2011	bouyer	Move rumpuser_sp_fini() after the kernel has completed shuwdown (and especially, after filesystems have been unmounted). This way, rump.halt returns once the rump kernel is really out of the game, which avoids races issues in test scripts using a rump kernel. OK pooka@
1.226	28-Jan-2011	pooka	Pass the value of getprogname() from the client to the server and record it in p_comm. This is nice for things like sockstat, since they now display the client command name: pain-rustique:43:~> rump.sockstat USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS root xulrunner- 16 0 tcp 192.168.2.114.65507 204.152.190.12.80 root xulrunner- 16 1 tcp 192.168.2.114.65501 204.152.190.12.80 root xulrunner- 16 2 tcp 192.168.2.114.65500 204.152.190.12.80 root xulrunner- 16 3 tcp 192.168.2.114.65499 204.152.190.12.80 root xulrunner- 16 5 tcp 192.168.2.114.65498 204.152.190.12.80 root xulrunner- 16 6 tcp 192.168.2.114.65497 204.152.190.12.80 root socket 62 0 tcp6 .http .* root socket 62 1 tcp .http .* root socket 63 0 tcp6 .81 .* root socket 63 1 tcp .81 .*
1.225	28-Jan-2011	pooka	Don't NULL out l_cpu, l_stat is the new rumpkernel way too.
1.224	28-Jan-2011	pooka	call procinit_sysctl to register the proc sysctl tree
1.223	28-Jan-2011	pooka	Some lwp-walkers expect the correct value for l_stat, so use a flag in l_flag instead of l_stat for the purpose of flagging lwps in a dying proc.
1.222	27-Jan-2011	pooka	Fix syscall name for compat syscalls. Arguably makesyscalls.sh should generate the right info, but it's easier to fix here now. This fixes compat syscalls for rump servers with dynamically loaded components. Since the compat syscall revamp a little time ago e.g. stat() didn't work on my system (which is 5.0-based) with e.g. rump_server -lrumpvfs. Static servers and non-compat syscalls worked just fine, though, making this a little harder to spot that the usual bug.
1.221	22-Jan-2011	pooka	inverse inversely incorrect comment
1.220	22-Jan-2011	pooka	In case sys_reboot() was called by a remote client, put the response in the socket before we shut down. This way the response to the syscall travels to the caller and they know things worked correctly instead of having to just assume.
1.219	12-Jan-2011	pooka	branches: 1.219.2; 1.219.4; When the client and the rump kernel are the same host process, all threads blocking in the kernel automatically exit when the process exists. However, for the sysproxy case this does not hold. Typically it's ~harmless, but e.g. in the case of socket binding following by poll it gets annoying. Introduce sysproxy procexit, which wakes up all threads blocking on a condition when a process's communication socket is closed. The code is a little different from the regular kernel simply because in a rump kernel l_mutex is not available at all times (this is because scheduling happens on every kernel entry and exit, and that path must be kept lockless for any reasonable performance). Instead, use gating which makes sure all threads are either out of the cv code or suspended in a well-known state. Then, wake up the threads and tell them to get the hell out of our galaxy.
1.218	07-Jan-2011	pooka	Avoid double init of tty_lock if rumpkern_tty is included. LOCKDEBUG does not tolerate double inits. pointed out by njoly
1.217	06-Jan-2011	pooka	give the outside world some idea of if we have LOCKDEBUG or not
1.216	06-Jan-2011	pooka	Support LOCKDEBUG. To use it, compile sys/rump with RUMP_LOCKDEBUG=yes. requested by martin (sparc64 gdb cannot reliably produce a stack trace)
1.215	04-Jan-2011	pooka	Add SMP support for all architectures. tested on sparc64 by martin
1.214	02-Jan-2011	pooka	There is a use case where preserving the parent's fd table is relevant, so to accommodate that change rump_lwproc_newproc() to rump_lwproc_rfork(). The new interface has the rfork() fd table semantics. The equivalent of rump_lwproc_newproc() is rump_lwproc_rfork(RUMP_RFCFDG).
1.213	30-Dec-2010	pooka	Requery syscall handlers during rump kernel init. This fixes syscalls provided by a rump faction such as rumpvfs when the library is not linked into the binary, but is dlopen()'d before calling rump_init(). (it is illegal to dlopen() a faction after rump_init(), but syscalls maybe be added the usual way with modules) rump_server(1) -lstuff works now.
1.212	16-Dec-2010	pooka	Print a banner a connecting client. The banner contains rump sp protocol version, os name, os revision and machine.
1.211	13-Dec-2010	pooka	stubs to make life easier
1.210	12-Dec-2010	pooka	Call rumpuser_sp_fini() from cpu_reboot() to make sure sys_reboot with RB_HALT does not hang.
1.209	12-Dec-2010	pooka	print a bit more diagnostics when halting
1.208	01-Dec-2010	pooka	Track lwp as the rumpuser mutex owner instead of pthread_t (this is done in rumpuser for simplicity, since on the kernel side things we assume we have only one pointer of space). As a side-effect, we can no longer know if the current thread is holding on to a mutex locked without curlwp context (basically all mutexes inited outside of mutex_init()). The only thing that called rumpuser_mutex_held() for a non-kmutex was the giant lock. So, instead implement recursive locking for the giant lock in the rump kernel and get rid of the now-unused recursive pthread mutex in the hypercall interface.
1.207	30-Nov-2010	pooka	Require server to be explicitly initialized with rump_init_server(url). Also, add rump_daemonize_begin() / rump_daemonize_end() to help with the "can't daemon() after pthread_create()" problem. Applications could accomplish the same, but since it's such a common operation, provide a little help.
1.206	22-Nov-2010	pooka	Support physio for remote processes. ==> add support for remote vmspace vmapbuf/vunmapbuf ==> add proper support for copyin/out_vmspace ==> add support for remote vmspace uvm_io ==> add support for non-curproc rumpuser_sp_copyin/out ==> store remote context in vm_map->pmap instead of pthread_specificdata In short, makes read/write of most (all?) block devices work from a remote rump client via rump syscalls.
1.205	21-Nov-2010	pooka	Encode smp-capability into the makefile so that it can be used to avoid potential screwups.
1.204	21-Nov-2010	pooka	Fix situation where we try to configure >MAXCPUS cpus.
1.203	21-Nov-2010	pooka	Realize the >1yo comment above rump_reboot and retire them to make room for sys_reboot.
1.202	19-Nov-2010	pooka	remove no longer necessary code
1.201	19-Nov-2010	pooka	Pass routines necessary for multithreaded operation down to rumpuser_sp.
1.200	17-Nov-2010	pooka	Remove unused rump_set_vmspace. An equivalent needs to come back later, though, but in its current form it's just unusable garbage.
1.199	17-Nov-2010	pooka	Provide a special rump_proxy_syscall for handling received proxy syscalls and retire unused rump_syscall.
1.198	17-Nov-2010	pooka	cleanup some old garbage
1.197	15-Nov-2010	pooka	apply const
1.196	04-Nov-2010	pooka	Refactor the sysproxy code so that rumpuser contains only the server side.
1.195	01-Nov-2010	pooka	Missed a few symbols in previous ... Also, reorganize rumpuser header inclusion to make sure problem is caught already by the compiler.
1.194	01-Nov-2010	pooka	Make librumpuser linkage once again free of librump. problem pointed out by <he>
1.193	29-Oct-2010	pooka	Attach implicit threads to initproc instead of proc0. This way applications which alter, by purpose or by accident, the uid in an implicit thread are don't affect kernel threads. from discussion with njoly
1.192	28-Oct-2010	pooka	Count proc0 as uid 0's process. Besides being the right thing to do, this effectively allows changing the uid of proc0 without running into KASSERT problems in uidinfo code (although I'm not quite so sure changing proc0's uid is the right thing to do ...). problem reported by njoly
1.191	27-Oct-2010	pooka	Start rework of system call proxying over socket ("sysproxy"). This incarnation is written in the user namespace as opposed to the previous one which was done in kernel namespace. Also, rump does all the handshaking now instead of excepting an application to come up with the user namespace socket. There's still a lot to do, including making code "a bit" more robust, actually running different clients in a different process inside the kernel and splitting the client side library from librump. I'm committing this now so that I don't lose it, plus it generally works as long as you don't use it in unexcepted ways: i've tested ifconfig(8), route(8), envstat(8) and sysctl(8).
1.190	27-Oct-2010	pooka	Remove old crud which is no longer used (since kern_proc).
1.189	25-Oct-2010	pooka	make printed string more accurate
1.188	07-Sep-2010	pooka	Make the Diabolical (Page)Daemon Director drain vfs buffers when we are short of memory. There are still some funnies left to iron out. For example, with a certain file system / memory size configuration it's still not possible to create enough files to make the file system run out of inodes before the kernel runs out of memory. Also, with some other configurations disk access slows down gargantually (though i'm sure there are >0 buffers available). Anyway, it ~works for now and it's by no means worse than what it was before.
1.187	07-Sep-2010	pooka	Allocate softint vectors for the final number of CPUs, not the number currently attached. Deals with a SNAFU in my commit earlier today which would cause softints established early to lack a softint context on non-bootstrap CPUs.
1.186	07-Sep-2010	pooka	Attach only one CPU for the bootstrap phase.
1.185	06-Sep-2010	pooka	Use standard uvm aobj pager. Most of the kernel aobj pager complexity comes from swap handling, but that is included only with VMSWAP.
1.184	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.183	30-Aug-2010	pooka	* record proc's cred in p_cred too * account procs for uids
1.182	26-Aug-2010	pooka	print one line of dmesg per cpu present
1.181	23-Aug-2010	pgoyette	Initialize the new kernconfig_lock for rump kernels before it can be used. Should fix the rather massive breakage in the automated test runs, too. Sorry for breaking rump.
1.180	11-Jul-2010	pooka	fd_hold() when creating new threads. This makes the fd code use multithreaded mode and actually work with a multithreaded process.
1.179	12-Jun-2010	pooka	Support rumpkern components and rumpkern components depending on vfs init.
1.178	10-Jun-2010	pooka	Use kern_proc.c instead of a collection of stubs. But what we really wanted from this commit was the support for proc_specificdata. TODO: make creating a new process actually use kern_proc and maybe even add an interface which starts a process with "any pid you don't like"
1.177	09-Jun-2010	pooka	Version rumpuser ABI with a lightweight mechanism.
1.176	09-Jun-2010	pooka	initialize specificdata for lwp0 too
1.175	03-Jun-2010	pooka	Implement a sort-of pagedaemon: adjust all memory allocators to go through an in-rumpkernel hypermemory allocator which knows it should kick the pagedaemon and block in case ``waitok'' memory allocation fails. This allows us to recover from some out-of-memory situations. Realworld'istically speaking (as opposed to whatever "should be" theory), these OOM situations will happen extremely rarely if ever when our hypervisor is a regular process. Speculatively, this should be useful for other types of hosts. issues remaining: * the hypervisor does not know how to reclaim kernel memory (and for the reason I stated above, I'm not sure if it makes sense to teach the current implementation about that) * vfs memory (buffers, vm object pages etc.) is not reclaimed
1.174	02-Jun-2010	pooka	rumpvm_init -> uvm_init to get rid of local prototype. no functional change
1.173	31-May-2010	pooka	Support mtsleep() without a biglocked sleeper (uvm uses this in UVM_UNLOCK_AND_WAIT())
1.172	28-May-2010	pooka	Improve the CPU scheduler for a host MP system with multithreaded access. The old scheduler had a global freelist which caused a cache crisis with multiple host threads trying to schedule a virtual CPU simultaneously. The rump scheduler is different from a normal thread scheduler, so it has different requirements. First, we schedule a CPU for a thread (which we get from the host scheduler) instead of scheduling a thread onto a CPU. Second, scheduling points are at every entry/exit to/from the rump kernel, including (but not limited to) syscall entry points and hypercalls. This means scheduling happens a lot more frequently than in a normal kernel. For every lwp, cache the previously used CPU. When scheduling, attempt to reuse the same CPU. If we get it, we can use it directly without any memory barriers or expensive locks. If the CPU is taken, migrate. Use a lock/wait only in the slowpath. Be very wary of walking the entire CPU array because that does not lead to a happy cacher. The migration algorithm could probably benefit from improved heuristics and tuning. Even as such, with the new scheduler an application which has two threads making rlimit syscalls in a tight loop experiences almost 400% speedup. The exact speedup is difficult to pinpoint, though, since the old scheduler caused very jittery results due to cache contention. Also, the rump version is now 70% faster than the counterpart which calls the host kernel.
1.171	11-May-2010	pooka	Initialize p_pgrp when creating a new process structure (and not only for proc0). This makes something work. I just can't remember what it was anymore.
1.170	01-May-2010	pooka	Add rump_printevcnts() which dumps values from all event counters. (NOTE! it is run unscheduled for various experimentation etcetc. reasons)
1.169	28-Apr-2010	pooka	Uncrack my brain, buggy let me !be. In other words, make previous commit to this file actually work. Funny how it's possible to fix things to not dump core and still have them not work.
1.168	28-Apr-2010	pooka	Set l_sysent so that syscall autoload actually works instead of autocores.
1.167	28-Apr-2010	pooka	If RUMP_NCPU is set, use that for virtual CPU count instead of host CPU count.
1.166	28-Apr-2010	pooka	Make number of virtual CPUs match number of host CPUs on NetBSD/x86 hosts.
1.165	27-Apr-2010	pooka	Fix multiple virtual cpu support. ... or at least on x86. CPU_INFO_FOREACH() still isn't MI, and I don't want to support 2^n different versions.
1.164	26-Apr-2010	pooka	Change machine from "rump" to MACHINE so that module_base goes right. Now, any guesses on how many archs this seemingly trivial change will break the principal metric, i.e. The Build(tm)? Keep the bets coming in.
1.163	22-Apr-2010	pooka	more signal stuff to group. no functional change.
1.162	21-Apr-2010	pooka	support kern_resource
1.161	17-Apr-2010	pooka	One emul is enough and since we need emul_netbsd, retire emul_rump.
1.160	14-Apr-2010	pooka	Include kern_tc and use a timecounter driver instead of homerolled kern_tc implementation.
1.159	12-Apr-2010	pooka	support lwp specificdata
1.158	31-Mar-2010	pooka	Create kern.hostname sysctl node. Using init_sysctl.c for creating the nodes requires some weeding, so don't try to use it yet.
1.157	31-Mar-2010	pooka	set kernel boottime
1.156	31-Mar-2010	pooka	* initialize msgbuf * for banner, use aprint_verbose instead of if (verbose) printf
1.155	05-Mar-2010	pooka	branches: 1.155.2; Use improved kernel module interfaces: instead of adding + loading modules in bootstrap, just add them. Load them later the same way as the kernel does: module_init_class(). Change the signature of rump_module_init() to take a vector instead of just one module. All modules in a DSO should be init'd at the same time because they might depend on each other, and code outside the rump kernel cannot know which way. (binary kernel modules are still loaded with rump_sys_modctl() the usual way).
1.154	01-Mar-2010	pooka	Introduce RUMP_COMPONENT. It behaves mostly like a simplified module which is linked into the kernel and cannot be unloaded. The main purpose is to get the proper constructors run and create any /dev nodes necessary for said component. Once more of the kernel (e.g. networking stack and device drivers) are converted to MODULE and devfs pops up from somewhere, rump components can be retired.
1.153	26-Feb-2010	pooka	Rename rumpuser_dl_module_bootstrap() to rumpuser_dl_bootstrap(), since it hasn't been involved only with modules for quite a while now.
1.152	09-Feb-2010	pooka	Store l_name for kernel threads.
1.151	15-Jan-2010	pooka	branches: 1.151.2; Accomplish messy stack with slightly less messy code.
1.150	15-Jan-2010	pooka	Use subr_percpu.c instead of homegrown implementation. ...except when using malloc(3)-relegated allocators (happens in production e.g. on Linux), since subr_percpu.c uses vmem and i don't want to reimplement vmem.
1.149	13-Jan-2010	pooka	If RUMP_VERBOSE is set in the env, set boothowto to AB_VERBOSE.
1.148	16-Dec-2009	pooka	print spammy banner in spammy bootstrap
1.147	09-Dec-2009	pooka	Get rid of useless stubs.
1.146	05-Dec-2009	pooka	Remove now-empty rump_sleepers_init()
1.145	04-Dec-2009	pooka	Provide the default_mapaddr method in default rump emul (since some kernel callers want to use it).
1.144	03-Dec-2009	pooka	Decide it's not worth the fuss to have rumpfs as a module and just hardcode attach into rump_vfs_init(). Saves us from a lot of pingpong init bouncing from one component to another to get the order right.
1.143	01-Dec-2009	pooka	Almost there for virtual CPU MP support: * support bound kernel threads * bind softint threads to specific virtual cpus + remove now-unnecessary locks from softint code Now, if we only had MI CPU_INFO_FOREACH() .... (hi rmind ;)
1.142	27-Nov-2009	pooka	Remove no longer necessary vfs weak symbols.
1.141	27-Nov-2009	pooka	Now that Makefile.rump was changed and everything gets built in update builds too, flip the allocator define to prefer the kernel pool/kmem instead of malloc(3). Use malloc(3) only if RUMP_USE_UNREAL_ALLOCATORS is defined.
1.140	26-Nov-2009	pooka	For rumpfs, do mountroot instead of the bunch of homegrown hacks currently there. Still needs a little massage to get the kernel interfaces right and avoid copypaste especially from main(). Also, move it a bit more into the direction of a real file system (finally!) by giving it a vfsops. Most ops are still unimplemented, though.
1.139	26-Nov-2009	pooka	remember to call pipe_init()
1.138	26-Nov-2009	pooka	Build the kernel symbol table in rumpuser bootstrap and feed it to the rump kernel. After this change it is possible to use the in-kernel linker and rump_sys_modctl() to load kernel modules at runtime. Previously loading modules at runtime was possible only through using the host system ld.so. Note that it is still preferred to use shared libs when possible, since they are PIC and n virtual kernels will only require one copy of r/o segments. However, when there is no access to source code, a binary kernel module is the only thing available ...
1.137	26-Nov-2009	pooka	Add rump_kernelfsym_load(), which loads the kernel symbol table.
1.136	10-Nov-2009	pooka	init uvm readahead
1.135	06-Nov-2009	pooka	account creds for processes, not lwp's
1.134	05-Nov-2009	pooka	enqueue loaded modules and prevent duplicates
1.133	04-Nov-2009	pooka	Use kern_mutex_obj.c directly instead of copypasting code.
1.132	03-Nov-2009	pooka	Weak aliazeize usermount_common_policy() to uncouple rumpkern linkage from rumpvfs once again after the secmodel changes. (temp solution, should find a better one)
1.131	03-Nov-2009	pooka	Reorder enough of lwp/cpu initialization to have enough context for pool/kmem init to work again with the stock versions (as opposed to rump malloc relegations).
1.130	03-Nov-2009	pooka	Add rump_boot_set/gethowto(), which can be called before rump_init() to control .... tadaa boothowto.
1.129	24-Oct-2009	pooka	Pass modinit to rumpuser_dl_module_bootstrap() as a function pointer to avoid linker rump -> rumpuser -> rump dependency which is annoying redundancy in static linking.
1.128	20-Oct-2009	pooka	Actually, put uvm_readahead into rumpkern, since while it's technically vfs stuff, sys_descrip depends on it and readahead itself uses only the pager interface.
1.127	19-Oct-2009	pooka	__weak_alias for uvm_readahead() since it's used also in sys_descrip.c
1.126	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.125	15-Oct-2009	pooka	Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.124	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.123	14-Oct-2009	pooka	"rumppriv" goes back to "rump" per internal interface naming change.
1.122	14-Oct-2009	pooka	Adjust rump sources for external/internal interfaces. No functional change.
1.121	09-Oct-2009	pooka	Provide an interface for reboot.
1.120	08-Oct-2009	pooka	Seems like module loading code is tasked with calling secmodel_register() these days ...
1.119	08-Oct-2009	pooka	remove extraneous call to secmodel_suser_start()
1.118	05-Oct-2009	pooka	set l_cpu for lwp0
1.117	02-Oct-2009	elad	First part of secmodel cleanup and other misc. changes: - Separate the suser part of the bsd44 secmodel into its own secmodel and directory, pending even more cleanups. For revision history purposes, the original location of the files was src/sys/secmodel/bsd44/secmodel_bsd44_suser.c src/sys/secmodel/bsd44/suser.h - Add a man-page for secmodel_suser(9) and update the one for secmodel_bsd44(9). - Add a "secmodel" module class and use it. Userland program and documentation updated. - Manage secmodel count (nsecmodels) through the module framework. This eliminates the need for secmodel_{,de}register() calls in secmodel code. - Prepare for secmodel modularization by adding relevant module bits. The secmodels don't allow auto unload. The bsd44 secmodel depends on the suser and securelevel secmodels. The overlay secmodel depends on the bsd44 secmodel. As the module class is only cosmetic, and to prevent ambiguity, the bsd44 and overlay secmodels are prefixed with "secmodel_". - Adapt the overlay secmodel to recent changes (mainly vnode scope). - Stop using link-sets for the sysctl node(s) creation. - Keep sysctl variables under nodes of their relevant secmodels. In other words, don't create duplicates for the suser/securelevel secmodels under the bsd44 secmodel, as the latter is merely used for "grouping". - For the suser and securelevel secmodels, "advertise presence" in relevant sysctl nodes (sysctl.security.models.{suser,securelevel}). - Get rid of the LKM preprocessor stuff. - As secmodels are now modules, there's no need for an explicit call to secmodel_start(); it's handled by the module framework. That said, the module framework was adjusted to properly load secmodels early during system startup. - Adapt rump to changes: Instead of using empty stubs for securelevel, simply use the suser secmodel. Also replace secmodel_start() with a call to secmodel_suser_start(). - 5.99.20. Testing was done on i386 ("release" build). Spearated module_init() changes were tested on sparc and sparc64 as well by martin@ (thanks!). Mailing list reference: http://mail-index.netbsd.org/tech-kern/2009/09/25/msg006135.html
1.116	24-Sep-2009	pooka	Load modules from all components which are linked into a rump binary with -lrumpcomponent. Previously only the first library component containing a module would get loaded automatically.
1.115	16-Sep-2009	pooka	Replace a large number of link set based sysctl node creations with calls from subsystem constructors. Benefits both future kernel modules and rump. no change to sysctl nodes on i386/MONOLITHIC & build tested i386/ALL
1.114	13-Sep-2009	pooka	call prop_kern_init()
1.113	08-Sep-2009	pooka	Add a few weak symbols for places where the kernel module boundaries are not as perfect as theory.
1.112	06-Sep-2009	pooka	Run rump_dev_init() where available.
1.111	04-Sep-2009	pooka	allocate p_lock for virtual processes
1.110	21-Jul-2009	pooka	the consumers expect the aiodone workqueue to be mpsafe. make it so.
1.109	22-May-2009	pooka	Add rump_getversion(), which returns the version of NetBSD for the rump kernel.
1.108	07-May-2009	pooka	Add rump_set_curlwp() for context switch to an existing lwp/proc.
1.107	03-May-2009	pooka	Rename rump_cred_destroy() to rump_cred_put() -- they've been refcounted since forever now.
1.106	02-May-2009	pooka	Since rump_module_load() doesn't actually load the module, change the name to rump_module_init(). Also, adjust the signature to take a direct pointer to modinfo and allow passing of props. Finally, provide rump_module_fini().
1.105	30-Apr-2009	pooka	Stir up the stack a bit to help arc4random() decide on a more "random" seed. This is a quick hack, I'll play games with rnd(9) later (no nethack).
1.104	29-Apr-2009	pooka	Add proof-of-concept code for enabling system calls to rump virtual kernels running in other processes on the same machine or on an entirely different host. I wrote this a while ago and am now committing it mainly to avoid losing it. It works, but could do with a little tuning here and there. What this will hopefully eventually buy us is the ability to use standard userland tools to configure rump kernels, e.g. ifconfig(8) and route(8) could be used to configure the networking stack provided by a rump kernel. Also some distributed OS implications may apply. fun fact: a system call which just does copyin/copyout takes >1000x longer when made over the LAN as compared to when made on the same machine.
1.103	29-Apr-2009	pooka	include proc0 in allproc
1.102	24-Apr-2009	pooka	* init pool linksets, makes proplib work. reported by Arnaud Ysmal. (linksets, sigh) * reduce #ifdef for RUMP_USE_REAL_ALLOCATORS
1.101	16-Apr-2009	pooka	When I switched to real kauth, I forgot to include a secmodel. Fix this oversight by including bsd44. Makes permissions for p2k work again.
1.100	29-Mar-2009	pooka	include subr_evcnt
1.99	19-Mar-2009	pooka	Make it possible to mount a file system through the mount() system call in addition to the old rump_mnt_mount(). Some issues remain (but require more deeprooted changes): * it is possible to mount only to / * unmount needs MNT_FORCE due to the new fs being root and having a bonus reference * cwdi is not set (since there is no concept of a process)
1.98	18-Mar-2009	pooka	Remember to kqueue_init() too so that non-timer events work.
1.97	18-Mar-2009	cegger	Ansify function definitions w/o arguments. Generated with sed.
1.96	20-Feb-2009	pooka	need sys/syscall.h
1.95	20-Feb-2009	pooka	Add local syscall proxy as the default.
1.94	12-Feb-2009	pooka	Use p_nlwpid to store the next lwpid location.
1.93	06-Feb-2009	pooka	branches: 1.93.2; Rip out the rwlock spl emulation code. It never did anything useful except keep my feet warm by consuming an insane amount of cpu cycles -- in rump our current "cpu" context is never interrupted & we have MULTIPROCESSOR. (itch i'm scratching: it made the networking stack 10-20% slower. this is one of the places where fast code actually matters)
1.92	06-Feb-2009	pooka	Add weak alias stubs for a few vfs routines used by the module code - this allows us to link programs with only rumpkern and rumpnet again.
1.91	26-Jan-2009	pooka	allocate proc_lock
1.90	26-Jan-2009	pooka	Init pool subsystem iff RUMP_USE_REAL_ALLOCATORS is defined.
1.89	23-Jan-2009	pooka	Add a compile-time option to use kmem/vmem/pools from the kernel sources instead of homegrown allocators. Default to "on", even though they appear to be a few percent slower at least on short jobs (e.g. untar to tmpfs).
1.88	13-Jan-2009	pooka	misc cleanup, mainly header polish
1.87	13-Jan-2009	pooka	Implement block I/O as a real block driver instead of a hacked copy of specfs. That was easier years ago when rump didn't support devices, but brings no gain now. This allows us to include the real specfs in rump.
1.86	11-Jan-2009	pooka	__rump_unavailable -> rump__unavailable
1.85	08-Jan-2009	pooka	Put syspuffs_glueinit in the rump kernel namespace.
1.84	07-Jan-2009	pooka	Explicitly pass a pointer to the kernel lock/unlock routines in rumpuser init instead of magically relying on the linker giving us the symbols.
1.83	07-Jan-2009	pooka	_rump_init() - > rump__init()
1.82	07-Jan-2009	pooka	ksyms_init()
1.81	02-Jan-2009	pooka	Include kernel printf routines in rump instead of relying on the magic libc symbol. This also allows to bid farewell to subr_prf2.c and merge the contents back to subr_prf.c. The host kernel bridging is now done via rumpuser_putchar().
1.80	01-Jan-2009	pooka	Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.79	29-Dec-2008	pooka	include subr_devsw in rumpkern
1.78	18-Dec-2008	pooka	__KERNEL_RCSID
1.77	13-Dec-2008	pooka	Get rid of local machine/{mutex,rwlock}.h files by treating the object storage as a single pointer (all archs have at least one uintptr_t in the objects). (forgot to commmit with others)
1.76	21-Nov-2008	pooka	rump_vfs_load() is really rump_module_load(), so call it that and move it from rumpvfs to rumpkern.
1.75	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.74	18-Nov-2008	pooka	Pass biodone() to rumpuser as a callback instead of hardcoding it. Also, explicitly init rumpuser async io thread.
1.73	17-Nov-2008	pooka	Remove rump_vp locking interfaces, use RUMP_VOP instead.
1.72	15-Oct-2008	pooka	branches: 1.72.2; One more init I happened to forget: iostat_init()
1.71	15-Oct-2008	pooka	Add support bits necessary for rumpnet functionality.
1.70	13-Oct-2008	pooka	award unlimited sbsize rlimit
1.69	13-Oct-2008	pooka	rump_enosys() is autogenerated into rump_syscalls (makes things actually work)
1.68	13-Oct-2008	pooka	Add uid_init() I managed to miss earlier.
1.67	13-Oct-2008	pooka	add rump_enosys()
1.66	12-Oct-2008	pooka	Add callout inits which I managed to not commit earlier with the rest of the callout stuff. problem noticed by Arnaud Ysmal
1.65	10-Oct-2008	pooka	remember to call percpu_init()
1.64	10-Oct-2008	pooka	Support callouts and call callout_hardclock() from the timer interrupt thread. The sleepq implementation required for callouts is horrible, kludged only for callouts, and generally unacceptable. It needs revisiting, but I'm not sure yet should rump or kern_timeout be improved. It's almost untested as of now, but committing this will give me some maneuvering space while letting application compile.
1.63	09-Oct-2008	pooka	Rewrite interrupts to provide better softintr support, i.e. not execute them simply in the context of the scheduling code, as this does not work for all applications (e.g. networking soft interrupts). Rather, schedule them and execute them from a separate context. Also provide a timer which for now executes just hardclock_callout() (well, at least after callouts are included in librump, which is soon).
1.62	09-Oct-2008	pooka	No point in having our private atomic ops, just use the ones now available in libc.
1.61	07-Oct-2008	pooka	Embed library build version into the init call and refuse to init if they don't match. In other words, this is a lightweight library major number.
1.60	30-Sep-2008	pooka	Check that we apply the previous kludge only to the root vnode.
1.59	30-Sep-2008	pooka	Switch to std kern_auth.
1.58	30-Sep-2008	pooka	Always set HASBUF when creating a componentname.
1.57	30-Sep-2008	pooka	Add an unspeakable kludge for nfs, which keeps an explicit reference to the root vnode. Properly fixing this would require fixing p2k, which would require fixing puffs, which has some optimizations, which are incompatible with kernel file systems... guess my Eyes of the Overworld were misplaced at that time.
1.56	07-Sep-2008	pooka	Give lwp0 an fd table and cwd. Allows easier direct use of rump.
1.55	02-Sep-2008	pooka	Make syspuffs mount code supply mount_syspuffs_parseargs() like the other mount binaries do. Now syspuffs can be used to run all puffs file systems as utilities. This includes fuse file systems and becomes interesting with the fs-utils project. We can now do e.g. this: ReFUSE ntfs-3g: golem> echo hello \| fsu_write/fsu_write ntfs-3g puffs ~/img/ntfs.img dafile golem> fsu_cat/fsu_cat ntfs-3g puffs ~/img/ntfs.img dafile hello golem> puffs sysctlfs: golem> fsu_ls/fsu_ls mount_sysctlfs puffs sysctl -l ddb total 0 -r-xr-xr-x 1 pooka users 1 Sep 2 22:11 commandonenter -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 fromconsole -r-xr-xr-x 1 pooka users 3 Sep 2 22:11 lines -r-xr-xr-x 1 pooka users 8 Sep 2 22:11 maxoff -r-xr-xr-x 1 pooka users 3 Sep 2 22:11 maxwidth -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 onpanic -r-xr-xr-x 1 pooka users 3 Sep 2 22:11 radix -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 tabstops -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 tee_msgbuf Same works for psshfs etcetc. In other words, this provides total integration for "normal" in-kernel file systems and puffs/fuse file systems on the ukfs library level. Note: implementation is still "first stab" and the fs-utils usage will no doubt change.
1.54	12-Aug-2008	pooka	Make it possible to control starting of threads per env variable instead of only at compile-time.
1.53	08-Aug-2008	pooka	Don't create a new proc structure for kthreads (pid == 0). XXX: this routine should probably do better accounting and consistency checks as well.
1.52	04-Aug-2008	pooka	Add support for using real kmem/vmem. Don't enable it by default, though, since it a) is a lot of unnecessary indirection in rump b) requires callouts which are so far unimplemented.
1.51	01-Aug-2008	pooka	support real sysctls
1.50	01-Aug-2008	pooka	Support ukfs_modload(), which dlopens and vfs_attaches rump file system modules for use. Sneakily this solves the problem with the dynamic linker not wanting to handle the modules link set for binaries where more than one file system library is included during the link phase and therefore only one of the file systems getting vfs_attach()ed in rump "boot". But more importantly, this is really TRTTD, since now applications can be built, linked and shipped completely independently of the file systems they support. tested by Arnaud Ysmal
1.49	31-Jul-2008	simonb	Merge the simonb-wapbl branch. From the original branch commit: Add Wasabi System's WAPBL (Write Ahead Physical Block Logging) journaling code. Originally written by Darrin B. Jewell while at Wasabi and updated to -current by Antti Kantee, Andy Doran, Greg Oster and Simon Burge. OK'd by core@, releng@.
1.48	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.47	03-Jun-2008	ad	branches: 1.47.2; 1.47.4; vfs_cache: - Don't use goto in critical paths, it can confuse the compiler. - Sprinkle some branch hints. - Make namecache stats per-CPU and collate once per second. - Use vtryget().
1.46	20-May-2008	ad	Fix rump build.
1.45	06-May-2008	ad	branches: 1.45.2; PR kern/38141 lookup/vfs_busy acquire rwlock recursively Simplify the mount locking. Remove all the crud to deal with recursion on the mount lock, and crud to deal with unmount as another weirdo lock. Hopefully this will once and for all fix the deadlocks with this. With this commit there are two locks on each mount: - krwlock_t mnt_unmounting. This is used to prevent unmount across critical sections like getnewvnode(). It's only ever read locked with rw_tryenter(), and is only ever write locked in dounmount(). A write hold can't be taken on this lock if the current LWP could hold a vnode lock. - kmutex_t mnt_updating. This is taken by threads updating the mount, for example when going r/o -> r/w, and is only present to serialize updates. In order to take this lock, a read hold must first be taken on mnt_unmounting, and the two need to be held across the operation. One effect of this change: previously if an unmount failed, we would make a half hearted attempt to back out of it gracefully, but that was unlikely to work in a lot of cases. Now while an unmount that will be aborted is in progress, new file operations within the mount will fail instead of being delayed. That is unlikely to be a problem though, because if the admin requests unmount of a file system then s(he) has made a decision to deny access to the resource.
1.44	04-May-2008	ad	Pull in the kernel module stuff so that rump can set up built-in modules.
1.43	28-Apr-2008	pooka	Unbreak recent breakage.
1.42	24-Mar-2008	martin	branches: 1.42.2; 1.42.4; Adapt to sel* changes
1.41	22-Mar-2008	ad	Update for select/poll changes.
1.40	21-Mar-2008	ad	Catch up with descriptor handling changes. See kern_descrip.c revision 1.173 for details.
1.39	18-Mar-2008	pooka	Reorder a few init bits into a better order to make syspuffs work again.
1.38	12-Mar-2008	pooka	Implement all ukfs interfaces (except getdents, that's a bit more tricky) with the help of rump system calls instead of calling namei by themselves. Trust me when I say it was non-trivial to get the namei calls right.
1.37	12-Mar-2008	pooka	Support multiple file systems within one process with ukfs by using a "chroot" for each file system.
1.36	11-Mar-2008	pooka	Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.35	30-Jan-2008	ad	branches: 1.35.2; 1.35.6; Make it compile.
1.34	27-Jan-2008	pooka	Replace vrelel() 010101-mania with a flags parameter. However, leave flags unimplemented for a while (no change in functionality).
1.33	27-Jan-2008	pooka	Don't fool around when recycling vnodes, simply override refcount to 1, hold on tight to your hat, and call recycle. The reason is that we might pick up extra references such as from lookup and we don't really care about tracking those. For example with p2k, puffs in the kernel already does all the refcounting we could ever dream of, and therefore it's left to the client and unnecessary.
1.32	27-Jan-2008	pooka	Use vfs_subr.c from sys/kern. This brings differences in the vnode life cycle between rump and a real kernel to a minimum.
1.31	24-Jan-2008	pooka	Use namei() etc. from kernel sources instead of a reimplementation. To accommodate, give the rootvnode its own vnode op vector with a simple lookup operation. This is used for looking up the file system's device vnode instead of doing that directly in a homesmoked namei().
1.30	24-Jan-2008	ad	specfs changes for PR kern/37717 (raidclose() is no longer called on shutdown). There are still problems with device access and a PR will be filed. - Kill checkalias(). Allow multiple vnodes to reference a single device. - Don't play dangerous tricks with block vnodes to ensure that only one vnode can describe a block device. Instead, prohibit concurrent opens of block devices. As a bonus remove the unreliable code that prevents multiple file system mounts on the same device. It's no longer needed. - Track opens by vnode and by device. Issue cdev_close() when the last open goes away, instead of abusing vnode::v_usecount to tell if the device is open.
1.29	22-Jan-2008	pooka	Until debugging threaded programs in NetBSD is fixed, supply the cpp option RUMP_WITHOUT_THREADS as a workaround. If defined, it makes rump itself operate single-threaded and prevents kthread_create() from working.
1.28	03-Jan-2008	pooka	Theoretically this is supposed to be interchangeable with real kernel code. Use kmem_alloc/free instead of some wily homerolled rump interfaces for memory allocation.
1.27	02-Jan-2008	pooka	Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.26	02-Jan-2008	pooka	fix vmlocking2 fallout: * I heard a wild rumor that vp_interlock is a mutex these days (hi ad!) * init new locks (hi ad) * observe that with simple_locks only deadlocks would be caught while releasing unlocked locks would go unnoticed. make locking work (hi pooka)
1.25	30-Dec-2007	pooka	pull in atomic ops from vmlocking2
1.24	30-Dec-2007	pooka	fake sigcantmask
1.23	08-Dec-2007	pooka	branches: 1.23.4; Remove cn_lwp from struct componentname. curlwp should be used from on. The NDINIT() macro no longer takes the lwp parameter and associates the credentials of the calling thread with the namei structure.
1.22	26-Nov-2007	pooka	branches: 1.22.2; Remove the "struct lwp *" argument from all VFS and VOP interfaces. The general trend is to remove it from all kernel interfaces and this is a start. In case the calling lwp is desired, curlwp should be used. quick consensus on tech-kern
1.21	07-Nov-2007	pooka	Execute I/O in a separate thread for async I/O where previously everything was written/read in caller context. Also, make the "kernel" lock recursive. It works better that way ...
1.20	07-Nov-2007	pooka	final splash of ketchup after source update: init/fini mountspecific
1.19	07-Nov-2007	pooka	implement _kernel_lock{,_unlock}()
1.18	07-Nov-2007	pooka	Emulate spls by using pthread rwlocks: splfoo() takes a read lock and when doing processing in an interrupt (effectively when calling biodone()), we take the write lock.
1.17	07-Nov-2007	pooka	oops, backout part which wasn't supposed to go in
1.16	07-Nov-2007	pooka	Call buf_syncwait() after releasing a file system.
1.15	04-Nov-2007	pooka	branches: 1.15.2; Make the strategy routine get the results through biowait() and the "disk driver" (rumpuser) call biodone() to indicate the completion of I/O. Support for B_ASYNC is coming at some point, but I need more locking support in the emulated vm for that.
1.14	31-Oct-2007	pooka	branches: 1.14.2; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.13	19-Oct-2007	ad	machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h
1.12	02-Sep-2007	pooka	branches: 1.12.2; 1.12.6; * Give rump_vfs_root() the option of returning the vnode unlocked. * initialize syncdelay * implement io_sync handler
1.11	01-Sep-2007	pooka	avoid uninitialized warning from impossible enum
1.10	25-Aug-2007	pooka	branches: 1.10.2; Don't play rename & typecast games with kauth_cred_t, but rather declare the type in rump.h only if necessary with the help of ifdef magic.
1.9	21-Aug-2007	pooka	Implement credentials. Access control is now similar to if the file system were run in the kernel.
1.8	20-Aug-2007	pooka	branches: 1.8.2; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.7	16-Aug-2007	pooka	tweaks
1.6	14-Aug-2007	pooka	branches: 1.6.2; * split userspace file system access into two separate libraries: + libp2k: the interface between libpuffs and vfs/vop + libukfs: generic user kernel file system library, usable independent of libp2k and/or puffs * use file system name (MOUNT_XYZ) instead of vfsops pointer to mount file system
1.5	14-Aug-2007	pooka	Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.4	08-Aug-2007	pooka	Provide rump_getvninfo() and use that in libp2k_lookup() to avoid an extra getattr for stuff the file system already cached in the vnode.
1.3	07-Aug-2007	pooka	realpath() can also fail, take that into account
1.2	06-Aug-2007	pooka	branches: 1.2.2; Allow to de/register pathnames which should be faked as block devices instead of faking all non-blks as blks in namei().
1.1	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.2.2.2	06-Aug-2007	pooka	Allow to de/register pathnames which should be faked as block devices instead of faking all non-blks as blks in namei().
1.2.2.1	06-Aug-2007	pooka	file rump.c was added on branch matt-mips64 on 2007-08-06 22:20:58 +0000
1.6.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.6.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.6.2.1	14-Aug-2007	skrll	file rump.c was added on branch nick-csl-alignment on 2007-08-15 13:50:40 +0000
1.8.2.4	23-Oct-2007	ad	Sync with head.
1.8.2.3	09-Oct-2007	ad	Sync with head.
1.8.2.2	20-Aug-2007	ad	Sync with HEAD.
1.8.2.1	20-Aug-2007	ad	file rump.c was added on branch vmlocking on 2007-08-20 22:07:29 +0000
1.10.2.4	23-Mar-2008	matt	sync with HEAD
1.10.2.3	09-Jan-2008	matt	sync with HEAD
1.10.2.2	08-Nov-2007	matt	sync with -HEAD
1.10.2.1	06-Nov-2007	matt	sync with HEAD
1.12.6.2	13-Nov-2007	bouyer	Sync with HEAD
1.12.6.1	25-Oct-2007	bouyer	Sync with HEAD.
1.12.2.9	24-Mar-2008	yamt	sync with head.
1.12.2.8	17-Mar-2008	yamt	sync with head.
1.12.2.7	04-Feb-2008	yamt	sync with head.
1.12.2.6	21-Jan-2008	yamt	sync with head
1.12.2.5	07-Dec-2007	yamt	sync with head
1.12.2.4	15-Nov-2007	yamt	sync with head.
1.12.2.3	27-Oct-2007	yamt	sync with head.
1.12.2.2	03-Sep-2007	yamt	sync with head.
1.12.2.1	02-Sep-2007	yamt	file rump.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:33 +0000
1.14.2.7	09-Dec-2007	jmcneill	Sync with HEAD.
1.14.2.6	27-Nov-2007	joerg	Sync with HEAD. amd64 Xen support needs testing.
1.14.2.5	11-Nov-2007	joerg	Sync with HEAD.
1.14.2.4	04-Nov-2007	jmcneill	Sync with HEAD.
1.14.2.3	02-Nov-2007	joerg	Remove the rest of the unintentional diff in sys/rump.
1.14.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.14.2.1	31-Oct-2007	joerg	file rump.c was added on branch jmcneill-pm on 2007-10-31 23:14:17 +0000
1.15.2.4	18-Feb-2008	mjf	Sync with HEAD.
1.15.2.3	27-Dec-2007	mjf	Sync with HEAD.
1.15.2.2	08-Dec-2007	mjf	Sync with HEAD.
1.15.2.1	19-Nov-2007	mjf	Sync with HEAD.
1.22.2.2	28-Dec-2007	ad	Make rump build.
1.22.2.1	26-Dec-2007	ad	Sync with head.
1.23.4.3	23-Jan-2008	bouyer	Sync with HEAD.
1.23.4.2	08-Jan-2008	bouyer	Sync with HEAD
1.23.4.1	02-Jan-2008	bouyer	Sync with HEAD
1.35.6.6	17-Jan-2009	mjf	Sync with HEAD.
1.35.6.5	05-Oct-2008	mjf	Sync with HEAD.
1.35.6.4	28-Sep-2008	mjf	Sync with HEAD.
1.35.6.3	05-Jun-2008	mjf	Sync with HEAD. Also fix build.
1.35.6.2	02-Jun-2008	mjf	Sync with HEAD.
1.35.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.35.2.1	24-Mar-2008	keiichi	sync with head.
1.42.4.9	09-Oct-2010	yamt	sync with head
1.42.4.8	11-Aug-2010	yamt	sync with head.
1.42.4.7	11-Mar-2010	yamt	sync with head
1.42.4.6	16-Sep-2009	yamt	sync with head
1.42.4.5	19-Aug-2009	yamt	sync with head.
1.42.4.4	20-Jun-2009	yamt	sync with head
1.42.4.3	16-May-2009	yamt	sync with head
1.42.4.2	04-May-2009	yamt	sync with head.
1.42.4.1	16-May-2008	yamt	sync with head.
1.42.2.3	17-Jun-2008	yamt	sync with head.
1.42.2.2	04-Jun-2008	yamt	sync with head
1.42.2.1	18-May-2008	yamt	sync with head.
1.45.2.4	10-Oct-2008	skrll	Sync with HEAD.
1.45.2.3	24-Sep-2008	wrstuden	Merge in changes between wrstuden-revivesa-base-2 and wrstuden-revivesa-base-3.
1.45.2.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.45.2.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.47.4.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.47.4.1	19-Oct-2008	haad	Sync with HEAD.
1.47.2.2	31-Jul-2008	simonb	Sync with head.
1.47.2.1	10-Jun-2008	simonb	Initial commit of Wasabi System's WAPBL (Write Ahead Physical Block Logging) journaling code. Originally written by Darrin B. Jewell while at Wasabi and updated to -current by Antti Kantee, Andy Doran, Greg Oster and Simon Burge. Still a number of issues - look in doc/BRANCHES for "simonb-wapbl" for more info.
1.72.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.72.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.72.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.93.2.2	23-Jul-2009	jym	Sync with HEAD.
1.93.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.151.2.4	06-Nov-2010	uebayasi	Sync with HEAD.
1.151.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.151.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.151.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.155.2.4	21-Apr-2011	rmind	sync with head
1.155.2.3	05-Mar-2011	rmind	sync with head
1.155.2.2	03-Jul-2010	rmind	sync with head
1.155.2.1	30-May-2010	rmind	sync with head
1.219.4.2	17-Feb-2011	bouyer	Sync with HEAD
1.219.4.1	08-Feb-2011	bouyer	Sync with HEAD
1.219.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.234.4.5	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.234.4.4	23-Jan-2013	yamt	sync with head
1.234.4.3	30-Oct-2012	yamt	sync with head
1.234.4.2	17-Apr-2012	yamt	sync with head
1.234.4.1	02-Nov-2011	yamt	page cache related changes - maintain object pages in radix tree rather than rb tree. - reduce unnecessary page scan in putpages. esp. when an object has a ton of pages cached but only a few of them are dirty. - reduce the number of pmap operations by tracking page dirtiness more precisely in uvm layer. - fix nfs commit range tracking. - fix nfs write clustering. XXX hack
1.237.2.1	18-Feb-2012	mrg	merge to -current.
1.240.2.1	18-Nov-2012	riz	Pull up following revision(s) (requested by rmind in ticket #678): sys/rump/librump/rumpkern/rump.c: revision 1.243 sys/rump/librump/rumpkern/rump.c: revision 1.244 sys/rump/librump/rumpkern/rump.c: revision 1.245 sys/rump/librump/rumpkern/rump.c: revision 1.246 usr.sbin/npf/npftest/npftest.c: revision 1.5 usr.sbin/npf/npftest/README: revision 1.2 usr.sbin/npf/npftest/npftest.h: revision 1.5 sys/rump/net/Makefile.rumpnetcomp: revision 1.5 sys/rump/net/lib/libnpf/shlib_version: revision 1.1 sys/net/npf/npf_impl.h: revision 1.22 sys/rump/dev/lib/libnpf/Makefile: file removal usr.sbin/npf/npftest/Makefile: revision 1.3 sys/rump/dev/lib/libnpf/component.c: file removal sys/rump/dev/lib/libnpf/shlib_version: file removal sys/net/npf/npf_state.c: revision 1.12 sys/rump/net/lib/libnpf/component.c: revision 1.1 usr.sbin/npf/npftest/libnpftest/npf_test_subr.c: revision 1.4 usr.sbin/npf/npftest/libnpftest/npf_test.h: revision 1.6 sys/rump/net/lib/libnpf/Makefile: revision 1.1 Move and rename librumpdev_npf to librumpnet_npf. Enable the build of librumpnet_npf. Add npf_state_setsampler() for _NPF_TESTING case. This also fixes the build. Call pserialize_init() during rump start-up, since librump/net/npf uses it. It helps to include the declaration of the routine being called. We also need kcpuset_init() now. Use correct routine name - kcpuset_sysinit() vs kcpuset_init()
1.246.2.5	03-Dec-2017	jdolecek	update from HEAD
1.246.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.246.2.3	23-Jun-2013	tls	resync from head
1.246.2.2	25-Feb-2013	tls	resync with head
1.246.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.270.2.2	18-May-2014	rmind	sync with head
1.270.2.1	28-Aug-2013	rmind	sync with head
1.292.2.1	10-Aug-2014	tls	Rebase.
1.308.2.4	09-May-2016	snj	Pull up following revision(s) (requested by joerg in ticket #1162): sys/rump/librump/rumpkern/rump.c: revision 1.329 Align the message buffer. The kernel routines normally are used only with page aligned buffers and they assume at least pointer alignment. Be defensive here and align to 256 Bytes.
1.308.2.3	25-Mar-2015	snj	Pull up following revision(s) (requested by maxv in ticket #617): sys/kern/kern_malloc.c: revision 1.144, 1.145 sys/kern/kern_pmf.c: revision 1.37 sys/rump/librump/rumpkern/rump.c: revision 1.316 sys/uvm/uvm_extern.h: revision 1.193 sys/uvm/uvm_km.c: revision 1.139 Don't include <uvm/uvm_extern.h> -- Kill kmeminit(). -- Remove this MALLOC_DEFINE (M_PMF unused).
1.308.2.2	09-Dec-2014	martin	Pull up following revision(s) (requested by gson in ticket #299): sys/rump/librump/rumpkern/cons.c: revision 1.4 sys/rump/librump/rumpkern/rump.c: revision 1.311 lib/librumpuser/rumpuser_sp.c: revision 1.67 No longer create a special process context to fork remote clients off of, simply always rfork off of proc1 closing all descriptors, and have the rump kernel open 0/1/2 if the parent process is "1". Fixes tests/rump/rumpkernel/t_sp, which was failing since the abovementioned special process change due to attempting to deliver a signal to the special process and the special process was not equipped to handle one.
1.308.2.1	15-Aug-2014	martin	Pull up following revision(s) (requested by riastradh in ticket #23): sys/rump/librump/rumpkern/rump.c: revision 1.310 sys/rump/librump/rumpkern/rump.c: revision 1.309 sys/kern/init_main.c: revision 1.459 Defer cprng_fast_init until CPUs are detected. Restore placement of percpu_init in rump_init. Probably doesn't matter, but let's avoid needless churn around the real bug fix.
1.312.2.4	19-Mar-2016	skrll	Sync with HEAD
1.312.2.3	22-Sep-2015	skrll	Sync with HEAD
1.312.2.2	06-Jun-2015	skrll	Sync with HEAD
1.312.2.1	06-Apr-2015	skrll	Sync with HEAD
1.329.10.2	22-Jan-2018	martin	Pull up following revision(s) (requested by jdolecek in ticket #506): sys/kern/kern_softint.c: revision 1.45 sys/rump/librump/rumpkern/rump.c: revision 1.331 sys/kern/subr_pserialize.c: revision 1.10 sys/kern/subr_psref.c: revision 1.10 Prevent panic or hangup in softint_disestablish(), pserialize_perform() or psref_target_destroy() while mp_online == false. See http://mail-index.netbsd.org/tech-kern/2017/12/25/msg022829.html Set mp_online = true. This change might fix PR#52886.
1.329.10.1	30-Nov-2017	martin	Pull up following revision(s) (requested by ozaki-r in ticket #405): sys/sys/pserialize.h: revision 1.2 sys/kern/kern_lock.c: revision 1.160 sys/kern/subr_pserialize.c: revision 1.9 sys/rump/librump/rumpkern/emul.c: revision 1.184 sys/rump/librump/rumpkern/emul.c: revision 1.185 sys/rump/librump/rumpkern/rump.c: revision 1.330 Implement debugging feature for pserialize(9) The debugging feature detects violations of pserialize constraints. It causes a panic: - if a context switch happens in a read section, or - if a sleepable function is called in a read section. The feature is enabled only if LOCKDEBUG is on. Discussed on tech-kern@ Add missing inclusion of pserialize.h (fix build)
1.329.8.1	27-Apr-2017	pgoyette	Restore all work from the former pgoyette-localcount branch (which is now abandoned doe to cvs merge botch). The branch now builds, and installs via anita. There are still some problems (cgd is non-functional and all atf tests time-out) but they will get resolved soon.
1.329.2.1	18-Jul-2016	pgoyette	We also need to init devsw's pserialize stuff when running as rump. XXX Noted that in rump, pserialize is initialized much sooner than devsw, XXX while in "real" kernels, pserialize comes _after_ devsw. Hmmm.
1.331.4.3	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.331.4.2	08-Apr-2020	martin	Merge changes from current as of 20200406
1.331.4.1	10-Jun-2019	christos	Sync with HEAD
1.331.2.1	18-Jan-2019	pgoyette	Synch with HEAD
1.339.2.1	29-Feb-2020	ad	Sync with head.
1.344.2.1	25-Apr-2020	bouyer	Sync with bouyer-xenpvh-base2 (HEAD)
1.349.2.2	03-Apr-2021	thorpej	Sync with HEAD.
1.349.2.1	14-Dec-2020	thorpej	Sync w/ HEAD.
1.35	17-Nov-2008	pooka	Move rump public headers to include/rump
1.34	07-Oct-2008	pooka	branches: 1.34.2; Embed library build version into the init call and refuse to init if they don't match. In other words, this is a lightweight library major number.
1.33	30-Sep-2008	pooka	Switch to std kern_auth.
1.32	02-Sep-2008	pooka	Make syspuffs mount code supply mount_syspuffs_parseargs() like the other mount binaries do. Now syspuffs can be used to run all puffs file systems as utilities. This includes fuse file systems and becomes interesting with the fs-utils project. We can now do e.g. this: ReFUSE ntfs-3g: golem> echo hello \| fsu_write/fsu_write ntfs-3g puffs ~/img/ntfs.img dafile golem> fsu_cat/fsu_cat ntfs-3g puffs ~/img/ntfs.img dafile hello golem> puffs sysctlfs: golem> fsu_ls/fsu_ls mount_sysctlfs puffs sysctl -l ddb total 0 -r-xr-xr-x 1 pooka users 1 Sep 2 22:11 commandonenter -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 fromconsole -r-xr-xr-x 1 pooka users 3 Sep 2 22:11 lines -r-xr-xr-x 1 pooka users 8 Sep 2 22:11 maxoff -r-xr-xr-x 1 pooka users 3 Sep 2 22:11 maxwidth -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 onpanic -r-xr-xr-x 1 pooka users 3 Sep 2 22:11 radix -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 tabstops -r-xr-xr-x 1 pooka users 2 Sep 2 22:11 tee_msgbuf Same works for psshfs etcetc. In other words, this provides total integration for "normal" in-kernel file systems and puffs/fuse file systems on the ukfs library level. Note: implementation is still "first stab" and the fs-utils usage will no doubt change.
1.31	08-Aug-2008	pooka	minor nit: fix header #ifndef namespacing
1.30	01-Aug-2008	pooka	Support ukfs_modload(), which dlopens and vfs_attaches rump file system modules for use. Sneakily this solves the problem with the dynamic linker not wanting to handle the modules link set for binaries where more than one file system library is included during the link phase and therefore only one of the file systems getting vfs_attach()ed in rump "boot". But more importantly, this is really TRTTD, since now applications can be built, linked and shipped completely independently of the file systems they support. tested by Arnaud Ysmal
1.29	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.28	01-Jul-2008	pooka	branches: 1.28.2; Fixes to build rump utilities as host binaries on Linux by removing sys namespace pollution which has crept in. Submitted in private mail by takemura, domain ca2.so-net.ne.jp
1.27	06-Jun-2008	pooka	branches: 1.27.2; Use -3 for wizardmode credentials instead of -1. Technically we shouldn't have to do this, but some pieces of kernel code still make direct comparisons like cred == NOCRED (which, incidentally, is defined as -1).
1.26	12-Mar-2008	pooka	branches: 1.26.2; 1.26.4; 1.26.6; Support chdir. This is useful for example when testing and not wanting to stress namei() so much as test individual ops. XXX: it should be implemented per calling thread, not per fs.
1.25	12-Mar-2008	pooka	Support multiple file systems within one process with ukfs by using a "chroot" for each file system.
1.24	11-Mar-2008	pooka	Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.23	27-Jan-2008	pooka	branches: 1.23.2; 1.23.6; Don't fool around when recycling vnodes, simply override refcount to 1, hold on tight to your hat, and call recycle. The reason is that we might pick up extra references such as from lookup and we don't really care about tracking those. For example with p2k, puffs in the kernel already does all the refcounting we could ever dream of, and therefore it's left to the client and unnecessary.
1.22	27-Jan-2008	pooka	Use vfs_subr.c from sys/kern. This brings differences in the vnode life cycle between rump and a real kernel to a minimum.
1.21	24-Jan-2008	pooka	Use namei() etc. from kernel sources instead of a reimplementation. To accommodate, give the rootvnode its own vnode op vector with a simple lookup operation. This is used for looking up the file system's device vnode instead of doing that directly in a homesmoked namei().
1.20	02-Jan-2008	pooka	fix vmlocking2 fallout: * I heard a wild rumor that vp_interlock is a mutex these days (hi ad!) * init new locks (hi ad) * observe that with simple_locks only deadlocks would be caught while releasing unlocked locks would go unnoticed. make locking work (hi pooka)
1.19	26-Nov-2007	pooka	branches: 1.19.6; Remove the "struct lwp *" argument from all VFS and VOP interfaces. The general trend is to remove it from all kernel interfaces and this is a start. In case the calling lwp is desired, curlwp should be used. quick consensus on tech-kern
1.18	07-Nov-2007	pooka	Emulate spls by using pthread rwlocks: splfoo() takes a read lock and when doing processing in an interrupt (effectively when calling biodone()), we take the write lock.
1.17	07-Nov-2007	pooka	Call buf_syncwait() after releasing a file system.
1.16	31-Oct-2007	pooka	branches: 1.16.2; 1.16.4; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.15	02-Sep-2007	pooka	branches: 1.15.2; 1.15.6; * Give rump_vfs_root() the option of returning the vnode unlocked. * initialize syncdelay * implement io_sync handler
1.14	25-Aug-2007	pooka	branches: 1.14.2; Don't play rename & typecast games with kauth_cred_t, but rather declare the type in rump.h only if necessary with the help of ifdef magic.
1.13	21-Aug-2007	pooka	Implement credentials. Access control is now similar to if the file system were run in the kernel.
1.12	20-Aug-2007	pooka	branches: 1.12.2; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.11	19-Aug-2007	pooka	Namespace management: do not call VOP_FOO directly from ukfs or p2k, but rather make the calls go through librump. This avoids having to include NetBSD kernel headers in userspace programs. Stay tuned for some more mods of the same sort ...
1.10	16-Aug-2007	pooka	tweaks
1.9	14-Aug-2007	pooka	branches: 1.9.2; * split userspace file system access into two separate libraries: + libp2k: the interface between libpuffs and vfs/vop + libukfs: generic user kernel file system library, usable independent of libp2k and/or puffs * use file system name (MOUNT_XYZ) instead of vfsops pointer to mount file system
1.8	14-Aug-2007	pooka	Add some barely staggering code to get more disklabel support.
1.7	13-Aug-2007	pooka	nuke no longer used vm macros
1.6	11-Aug-2007	pooka	* move rump_vopwrite_fault() into history - we now support the file system faulting in pages if it does e.g. fragment reallocation * get rid of rumpvm_findpage() and always use uvm_pagelookup() * determine a vnode's cleanness by flagging it as being on the work list if we "take" a write fault and removing it from the worklist once pages are flushed. There is no work list here, but at least there is symmetry with the kernel.
1.5	08-Aug-2007	pooka	Provide rump_getvninfo() and use that in libp2k_lookup() to avoid an extra getattr for stuff the file system already cached in the vnode.
1.4	07-Aug-2007	pooka	remove the allocstorage param from makepage - not needed
1.3	07-Aug-2007	pooka	track dirty vm objects
1.2	06-Aug-2007	pooka	branches: 1.2.2; Allow to de/register pathnames which should be faked as block devices instead of faking all non-blks as blks in namei().
1.1	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.2.2.2	06-Aug-2007	pooka	Allow to de/register pathnames which should be faked as block devices instead of faking all non-blks as blks in namei().
1.2.2.1	06-Aug-2007	pooka	file rump.h was added on branch matt-mips64 on 2007-08-06 22:20:58 +0000
1.9.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.9.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.9.2.1	14-Aug-2007	skrll	file rump.h was added on branch nick-csl-alignment on 2007-08-15 13:50:41 +0000
1.12.2.3	12-Oct-2007	ad	Fix merge errors.
1.12.2.2	20-Aug-2007	ad	Sync with HEAD.
1.12.2.1	20-Aug-2007	ad	file rump.h was added on branch vmlocking on 2007-08-20 22:07:30 +0000
1.14.2.4	23-Mar-2008	matt	sync with HEAD
1.14.2.3	09-Jan-2008	matt	sync with HEAD
1.14.2.2	08-Nov-2007	matt	sync with -HEAD
1.14.2.1	06-Nov-2007	matt	sync with HEAD
1.15.6.1	13-Nov-2007	bouyer	Sync with HEAD
1.15.2.7	17-Mar-2008	yamt	sync with head.
1.15.2.6	04-Feb-2008	yamt	sync with head.
1.15.2.5	21-Jan-2008	yamt	sync with head
1.15.2.4	07-Dec-2007	yamt	sync with head
1.15.2.3	15-Nov-2007	yamt	sync with head.
1.15.2.2	03-Sep-2007	yamt	sync with head.
1.15.2.1	02-Sep-2007	yamt	file rump.h was added on branch yamt-lazymbuf on 2007-09-03 14:45:34 +0000
1.16.4.3	18-Feb-2008	mjf	Sync with HEAD.
1.16.4.2	08-Dec-2007	mjf	Sync with HEAD.
1.16.4.1	19-Nov-2007	mjf	Sync with HEAD.
1.16.2.5	27-Nov-2007	joerg	Sync with HEAD. amd64 Xen support needs testing.
1.16.2.4	11-Nov-2007	joerg	Sync with HEAD.
1.16.2.3	02-Nov-2007	joerg	Remove the rest of the unintentional diff in sys/rump.
1.16.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.16.2.1	31-Oct-2007	joerg	file rump.h was added on branch jmcneill-pm on 2007-10-31 23:14:17 +0000
1.19.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.23.6.6	17-Jan-2009	mjf	Sync with HEAD.
1.23.6.5	05-Oct-2008	mjf	Sync with HEAD.
1.23.6.4	28-Sep-2008	mjf	Sync with HEAD.
1.23.6.3	02-Jul-2008	mjf	Sync with HEAD.
1.23.6.2	29-Jun-2008	mjf	Sync with HEAD.
1.23.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.23.2.1	24-Mar-2008	keiichi	sync with head.
1.26.6.3	10-Oct-2008	skrll	Sync with HEAD.
1.26.6.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.26.6.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.26.4.1	04-May-2009	yamt	sync with head.
1.26.2.1	17-Jun-2008	yamt	sync with head.
1.27.2.2	31-Jul-2008	simonb	Sync with head.
1.27.2.1	03-Jul-2008	simonb	Sync with head.
1.28.2.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.28.2.1	19-Oct-2008	haad	Sync with HEAD.
1.34.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.2	23-Nov-2010	pooka	branches: 1.2.6; Add aliases for _atomic_cas_foo, as they are used often. A snafu in "./build.sh rumptest" prevented me from noticing this yesterday, so thanks to Nick Hudson for re-pinging. (I'll fix build.sh shortly)
1.1	22-Nov-2010	pooka	rename atomic_cas_up to rump_atomic_cas_up to avoid collisions
1.2.6.2	05-Mar-2011	rmind	sync with head
1.2.6.1	23-Nov-2010	rmind	file rump_atomic_cas_up.c was added on branch rmind-uvmplock on 2011-03-05 20:56:15 +0000
1.3	07-Aug-2021	thorpej	Merge thorpej-cfargs2.
1.2	24-Apr-2021	thorpej	branches: 1.2.8; Merge thorpej-cfargs branch: Simplify and make extensible the config_search() / config_found() / config_attach() interfaces: rather than having different variants for which arguments you want pass along, just have a single call that takes a variadic list of tag-value arguments. Adjust all call sites: - Simplify wherever possible; don't pass along arguments that aren't actually needed. - Don't be explicit about what interface attribute is attaching if the device only has one. (More simplification.) - Add a config_probe() function to be used in indirect configuiration situations, making is visibly easier to see when indirect config is in play, and allowing for future change in semantics. (As of now, this is just a wrapper around config_match(), but that is an implementation detail.) Remove unnecessary or redundant interface attributes where they're not needed. There are currently 5 "cfargs" defined: - CFARG_SUBMATCH (submatch function for direct config) - CFARG_SEARCH (search function for indirect config) - CFARG_IATTR (interface attribte) - CFARG_LOCATORS (locators array) - CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles) ...and a sentinel value CFARG_EOL. Add some extra sanity checking to ensure that interface attributes aren't ambiguous. Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark ports to associate those device handles with device_t instance. This will trickle trough to more places over time (need back-end for pre-OFW Sun OBP; any others?).
1.1	13-May-2019	bad	branches: 1.1.2; 1.1.14; On the one thousand and ninth day rump's mainbus was moved from rumpdev to rumpkern, liberating all rumpnet users from the need to -lrumpdev -lrumpvfs just because a loopback interface is mandatory. Rename rumpdev/autoconf.c to rumpkern/rump_autoconf.c to avoid accidentally picking up e.g. sys/arch/amd64/amd64/autoconf.c through make's .PATH. Move rumpdev/MAINBUS.ioconf to rumpkern.
1.1.14.5	05-Apr-2021	thorpej	Treat config_probe() as if it were a boolean function; don't compare return value > 0... except for the odd balls, which are now really easy to spot.
1.1.14.4	05-Apr-2021	thorpej	config_match() -> config_probe() for the straight-forward indirect config cases. There are still a few odd balls using config_match() which should be sorted out later.
1.1.14.3	04-Apr-2021	thorpej	CFARG_SUBMATCH -> CFARG_SEARCH for the indirect configuration uses.
1.1.14.2	03-Apr-2021	thorpej	Give config_attach() the tagged variadic argument treatment and mechanically convert all call sites.
1.1.14.1	20-Mar-2021	thorpej	The proliferation if config_search_() and config_found_() combinations is a little absurd, so begin to tidy this up: - Introduce a new cfarg_t enumerated type, that defines the types of tag-value variadic arguments that can be passed to the various config_() functions (CFARG_SUBMATCH, CFARG_IATTR, and CFARG_LOCATORS, for now, plus a CFARG_EOL sentinel). - Collapse config_search_() into config_search() that takes these variadic arguments. - Convert all call sites of config_search_*() to the new signature. Noticed several incorrect usages along the way, which will be audited in a future commit.
1.1.2.2	10-Jun-2019	christos	Sync with HEAD
1.1.2.1	13-May-2019	christos	file rump_autoconf.c was added on branch phil-wifi on 2019-06-10 22:09:53 +0000
1.2.8.1	05-Aug-2021	thorpej	Adapt to CFARGS().
1.2	16-Mar-2014	pooka	branches: 1.2.4; 1.2.6; 1.2.10; remove unnecesary verbosity: s/RUMP_CURLWP_MODEL/RUMP_CURLWP/
1.1	15-Mar-2014	pooka	Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.2.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.10.1	16-Mar-2014	tls	file rump_curlwp.h was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.2.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.6.1	16-Mar-2014	yamt	file rump_curlwp.h was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.4.2	18-May-2014	rmind	sync with head
1.2.4.1	16-Mar-2014	rmind	file rump_curlwp.h was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.3	19-Apr-2018	christos	s/static inline/static __inline/g for consistency.
1.2	16-Mar-2014	pooka	branches: 1.2.4; 1.2.6; 1.2.10; 1.2.34; remove unnecesary verbosity: s/RUMP_CURLWP_MODEL/RUMP_CURLWP/
1.1	15-Mar-2014	pooka	Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.2.34.1	22-Apr-2018	pgoyette	Sync with HEAD
1.2.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.10.1	16-Mar-2014	tls	file rump_curlwp___thread.h was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.2.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.6.1	16-Mar-2014	yamt	file rump_curlwp___thread.h was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.4.2	18-May-2014	rmind	sync with head
1.2.4.1	16-Mar-2014	rmind	file rump_curlwp___thread.h was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.3	19-Apr-2018	christos	s/static inline/static __inline/g for consistency.
1.2	16-Mar-2014	pooka	branches: 1.2.4; 1.2.6; 1.2.10; 1.2.34; remove unnecesary verbosity: s/RUMP_CURLWP_MODEL/RUMP_CURLWP/
1.1	15-Mar-2014	pooka	Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.2.34.1	22-Apr-2018	pgoyette	Sync with HEAD
1.2.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.10.1	16-Mar-2014	tls	file rump_curlwp_hypercall.h was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.2.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.6.1	16-Mar-2014	yamt	file rump_curlwp_hypercall.h was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.4.2	18-May-2014	rmind	sync with head
1.2.4.1	16-Mar-2014	rmind	file rump_curlwp_hypercall.h was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.2	23-Mar-2015	pooka	branches: 1.2.16; fix typo "set curlwp to context" -> "set curlwp to implicit context" from Martin Lucina <martin@lucina.net>
1.1	09-Nov-2014	pooka	branches: 1.1.2; Move rump kernel man pages from various sources to sys/rump namely: * src/lib is used only when building for POSIX'y platforms, but the man pages have their use for all platforms * rumpuser.3 is a function of the rump kernel, not one of the of the POSIX'y implementation hosted in src/lib/librumpuser no functional change
1.1.2.1	06-Apr-2015	skrll	Sync with HEAD
1.2.16.2	03-Dec-2017	jdolecek	update from HEAD
1.2.16.1	23-Mar-2015	jdolecek	file rump_lwproc.3 was added on branch tls-maxphys on 2017-12-03 11:39:16 +0000
1.94	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.93	18-Jan-2016	pooka	Fix dlopen()/dlclose()+RUMP_USE_CTOR to not leave dangling pointers around.
1.92	22-Apr-2015	pooka	Apparently not all ports define struct clockframe in cpu.h, so we cannot provide our definition that way. Instead, generate the struct clockframe passed to hardclock() in MD code.
1.91	18-Apr-2015	pooka	Give remote clients struct pmap storage. Although the pmap is unused, that way we can sure that the pmap macro framework doesn't access all the wrong places.
1.90	17-Apr-2015	pooka	Give the kernel/local pmaps actual storage. That way friendly neighborhood macros won't go scribbling in the wrong places.
1.89	03-Apr-2015	pooka	Use RUMP_PMAP_KERNEL and RUMP_PMAP_LOCAL to denote kernel and local client pmaps, respectively.
1.88	03-Apr-2015	pooka	Use a different vmspace for rump kernel proc0 and local clients. While the rump kernel and local clients are by definition in the same host vmspace, there are subtle differences in how in-kernel code works in case accessing the kernel vmspace or a user process vmspace. Problem discovered by riastradh's "read(fd, NULL, 1)" test.
1.87	07-Jan-2015	pooka	Move sysproxy support into a separate component, rumpkern_sysproxy, instead of it being always provided by the rump kernel base. This move accomplishes two things: 1) it is no longer necessary to provide sysproxy hypercall stubs for platforms which do not want to use sysproxy 2) it is easier to reason about the security aspects, since configurations not linking the sysproxy component simply do not support remote system calls discussed on rumpkernel-users
1.86	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.85	27-Apr-2014	pooka	branches: 1.85.4; unsprinkle const to fix clang build. mmm, travis ci
1.84	27-Apr-2014	pooka	Eliminate weak symbols from rump kernel syscall handlers, part 4: Do not query system call handlers by using the rumpuser_dl_globalsym() hypercall -- it will not work in environments which are not in control of their own symbols (e.g. rumpuser-xen). Instead, provide rump_syscall_boot_establish(), which component constructors can use to establish their non-modular syscalls.
1.83	23-Apr-2014	pooka	Add a RUMP_USE_CTOR compile-time switch. If defined, use __attribute__((constructor)) to determine which rump kernel components and kernel modules are linked into the rump kernel. If not defined (default), use the regular approach with link sets. This option is aimed to fix problems with toolchains where using link sets is not possible because the linker does not generate the requisite __start/__stop symbols for the link set sections (e.g. GNU gold, OS X, ...).
1.82	23-Apr-2014	pooka	Include LIST_ENTRY() in "struct rump_component". Main benefit: rump_component_load() can now be called from an early-running constructor since the routine doesn't need to allocate memory.
1.81	09-Apr-2014	pooka	implement lwp_create() and a few related interfaces. main raison d'impalerment: the aio driver
1.80	15-Mar-2014	pooka	branches: 1.80.2; Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.79	17-Jan-2014	pooka	Use subr_cprng.c instead of stub implementation. Rijndael migrates from rumpkern_crypto to rumpkern due to it being mandatory for cprng.
1.78	27-Oct-2013	pooka	Enable holding implicit threads over explicit scheduling points (i.e. a kernel driver calling rump_lwproc_switch()). Also, correctly handle curcpu()->ci_curlwp and biglock there.
1.77	17-Sep-2013	pooka	Make it possible to run component constructors after mainbus attaches, but before config_finalize() is run.
1.76	07-Sep-2013	pooka	Add an initial console device and open fd's 0/1/2 for initproc. This is again useful in standalone-type environments such as Xen, where all printf/etc calls go through the rump kernel.
1.75	03-Sep-2013	pooka	Don't autogenerate the wrapper that is called from the rump kernel local syscall entry points. The wrapper is now so big that it doesn't get inlined (original intent for having it close to the entry points), and autogenerating a regular function just loses in flexibility.
1.74	10-Mar-2013	pooka	branches: 1.74.6; Don't allow kernel threads to run before all CPUs have been initialized to avoid them getting scheduled on non-initialized CPUs.
1.73	19-Feb-2013	martin	Stopgap fix to make rump cooperate with pserialize, may be revisited later. Patch from pooka, ok: rmind. No related regressions in a complete atf test run (which works again with this, even on non x86 SMP machines).
1.72	14-Jan-2013	pooka	Don't use __weak_alias where the component framework is sufficient.
1.71	09-Oct-2012	pooka	Gather some statistics about biglock usage.
1.70	21-Mar-2011	pooka	branches: 1.70.4; 1.70.14; Update copyright statements. no functional change.
1.69	13-Jan-2011	pooka	branches: 1.69.2; Introduce RUMP_LOCALPROC_P() macro and use it.
1.68	11-Jan-2011	pooka	Add one more component level to networking: IFCFG. It is executed after IF and the purposes to guarantee the right order in cross-component interface address configuration. (e.g. lo0 is attached by net but 127.0.0.1 is configured by netinet)
1.67	09-Jan-2011	pooka	Allow multiple RUMP_COMPONENT() in one file.
1.66	07-Jan-2011	pooka	Avoid double init of tty_lock if rumpkern_tty is included. LOCKDEBUG does not tolerate double inits. pointed out by njoly
1.65	01-Dec-2010	pooka	Track lwp as the rumpuser mutex owner instead of pthread_t (this is done in rumpuser for simplicity, since on the kernel side things we assume we have only one pointer of space). As a side-effect, we can no longer know if the current thread is holding on to a mutex locked without curlwp context (basically all mutexes inited outside of mutex_init()). The only thing that called rumpuser_mutex_held() for a non-kmutex was the giant lock. So, instead implement recursive locking for the giant lock in the rump kernel and get rid of the now-unused recursive pthread mutex in the hypercall interface.
1.64	21-Nov-2010	pooka	Fix situation where we try to configure >MAXCPUS cpus.
1.63	17-Nov-2010	pooka	Remove unused rump_set_vmspace. An equivalent needs to come back later, though, but in its current form it's just unusable garbage.
1.62	17-Nov-2010	pooka	cleanup some old garbage
1.61	04-Nov-2010	pooka	Refactor the sysproxy code so that rumpuser contains only the server side.
1.60	29-Oct-2010	pooka	Attach implicit threads to initproc instead of proc0. This way applications which alter, by purpose or by accident, the uid in an implicit thread are don't affect kernel threads. from discussion with njoly
1.59	27-Oct-2010	pooka	Start rework of system call proxying over socket ("sysproxy"). This incarnation is written in the user namespace as opposed to the previous one which was done in kernel namespace. Also, rump does all the handshaking now instead of excepting an application to come up with the user namespace socket. There's still a lot to do, including making code "a bit" more robust, actually running different clients in a different process inside the kernel and splitting the client side library from librump. I'm committing this now so that I don't lose it, plus it generally works as long as you don't use it in unexcepted ways: i've tested ifconfig(8), route(8), envstat(8) and sysctl(8).
1.58	07-Sep-2010	pooka	Make the Diabolical (Page)Daemon Director drain vfs buffers when we are short of memory. There are still some funnies left to iron out. For example, with a certain file system / memory size configuration it's still not possible to create enough files to make the file system run out of inodes before the kernel runs out of memory. Also, with some other configurations disk access slows down gargantually (though i'm sure there are >0 buffers available). Anyway, it ~works for now and it's by no means worse than what it was before.
1.57	07-Sep-2010	pooka	Allocate softint vectors for the final number of CPUs, not the number currently attached. Deals with a SNAFU in my commit earlier today which would cause softints established early to lack a softint context on non-bootstrap CPUs.
1.56	07-Sep-2010	pooka	Attach only one CPU for the bootstrap phase.
1.55	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.54	14-Jun-2010	pooka	Make it possible to define an upper limit for memory consumed by the rump kernel by specifying RUMP_MEMLIMIT. In case allocation over that limit is attempted, essentially pool reclaim and uvm_wait() is done. The default is to allow to allocate as much as the host will give. XXX: uvm_km_alloc and malloc(9) do not currently conform. the former is easy, the latter requires kern_malloc.c (rump malloc is currently directly relegated to host malloc).
1.53	13-Jun-2010	pooka	Move FLAWLESSCALL from rump_dev_private.h into rump_private.h so it can be used outside of devices.
1.52	12-Jun-2010	pooka	Support rumpkern components and rumpkern components depending on vfs init.
1.51	10-Jun-2010	pooka	Use kern_proc.c instead of a collection of stubs. But what we really wanted from this commit was the support for proc_specificdata. TODO: make creating a new process actually use kern_proc and maybe even add an interface which starts a process with "any pid you don't like"
1.50	03-Jun-2010	pooka	Implement a sort-of pagedaemon: adjust all memory allocators to go through an in-rumpkernel hypermemory allocator which knows it should kick the pagedaemon and block in case ``waitok'' memory allocation fails. This allows us to recover from some out-of-memory situations. Realworld'istically speaking (as opposed to whatever "should be" theory), these OOM situations will happen extremely rarely if ever when our hypervisor is a regular process. Speculatively, this should be useful for other types of hosts. issues remaining: * the hypervisor does not know how to reclaim kernel memory (and for the reason I stated above, I'm not sure if it makes sense to teach the current implementation about that) * vfs memory (buffers, vm object pages etc.) is not reclaimed
1.49	02-Jun-2010	pooka	rumpvm_init -> uvm_init to get rid of local prototype. no functional change
1.48	01-Jun-2010	pooka	* remove rumpvm_makepage, just use uvm_pagealloc() * update copyright to reflect reality a little better
1.47	31-May-2010	pooka	Support mtsleep() without a biglocked sleeper (uvm uses this in UVM_UNLOCK_AND_WAIT())
1.46	18-May-2010	pooka	Namespace rump-only kernel biglock routines appropriately. No functional change.
1.45	18-May-2010	pooka	Make it possible to use the scheduler lock as the rumpuser condvar interlock. This is applicable in cases where the actual interlock is the CPU the currently running thread is scheduled on. Borrowing the scheduler lock as the mutex mandated by pthread_cond_wait() does away with need to have an additional mutex. This both optimizes runtime execution and simplifies code, as the extra lock typically lead to quite some trickeries to avoid the dungeon collapsing due to zaps from the wand of deadlock.
1.44	27-Apr-2010	pooka	Fix multiple virtual cpu support. ... or at least on x86. CPU_INFO_FOREACH() still isn't MI, and I don't want to support 2^n different versions.
1.43	01-Mar-2010	pooka	branches: 1.43.2; Introduce RUMP_COMPONENT. It behaves mostly like a simplified module which is linked into the kernel and cannot be unloaded. The main purpose is to get the proper constructors run and create any /dev nodes necessary for said component. Once more of the kernel (e.g. networking stack and device drivers) are converted to MODULE and devfs pops up from somewhere, rump components can be retired.
1.42	05-Dec-2009	pooka	branches: 1.42.2; Remove now-empty rump_sleepers_init()
1.41	04-Dec-2009	pooka	g/c unused functions (previously used by the vnode pager).
1.40	03-Dec-2009	pooka	Remove last remnants of the long-ago-properly-fixed RUMP_LMUTEX_MAGIC hack.
1.39	03-Dec-2009	pooka	Decide it's not worth the fuss to have rumpfs as a module and just hardcode attach into rump_vfs_init(). Saves us from a lot of pingpong init bouncing from one component to another to get the order right.
1.38	02-Dec-2009	uebayasi	Declare global pointers as extern, otherwise they become common symbols. Fix mips build in lib/librumpnet.
1.37	01-Dec-2009	pooka	Almost there for virtual CPU MP support: * support bound kernel threads * bind softint threads to specific virtual cpus + remove now-unnecessary locks from softint code Now, if we only had MI CPU_INFO_FOREACH() .... (hi rmind ;)
1.36	26-Nov-2009	pooka	For rumpfs, do mountroot instead of the bunch of homegrown hacks currently there. Still needs a little massage to get the kernel interfaces right and avoid copypaste especially from main(). Also, move it a bit more into the direction of a real file system (finally!) by giving it a vfsops. Most ops are still unimplemented, though.
1.35	09-Nov-2009	pooka	Hash out soft interrupts to be a little closer to real softints: * split them into levels * allow only one per level to be active at a time * fire softints only when we are unscheduling from a CPU instead of immediately in softint_schedule(). this will later morph into return from interrupt, but that part isn't done yet.
1.34	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.33	15-Oct-2009	pooka	When allocating the temporary lwp we must have an lwp context. So take turns using lwp0 for this purpose, nothing else uses it.
1.32	15-Oct-2009	pooka	Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.31	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.30	14-Oct-2009	pooka	g/c some stuff which wasn't supposed to see the light of day
1.29	14-Oct-2009	pooka	Adjust rump sources for external/internal interfaces. No functional change.
1.28	29-Apr-2009	pooka	Add proof-of-concept code for enabling system calls to rump virtual kernels running in other processes on the same machine or on an entirely different host. I wrote this a while ago and am now committing it mainly to avoid losing it. It works, but could do with a little tuning here and there. What this will hopefully eventually buy us is the ability to use standard userland tools to configure rump kernels, e.g. ifconfig(8) and route(8) could be used to configure the networking stack provided by a rump kernel. Also some distributed OS implications may apply. fun fact: a system call which just does copyin/copyout takes >1000x longer when made over the LAN as compared to when made on the same machine.
1.27	26-Apr-2009	pooka	Fix getnano/microuptime to report actual uptime.
1.26	06-Apr-2009	pooka	let drivers define DPRINTF
1.25	20-Feb-2009	pooka	Add local syscall proxy as the default.
1.24	07-Feb-2009	pooka	branches: 1.24.2; Make the clock interrupt tick based on absolute time instead of relative time. This prevents drifting. Also, keep track of time within userspace, so we do not have to make a syscall to get the clock value. This is approximately 7 times cheaper, but on the negative side is limited to the clock interrupt frequency.
1.23	13-Jan-2009	pooka	misc cleanup, mainly header polish
1.22	13-Jan-2009	pooka	Implement block I/O as a real block driver instead of a hacked copy of specfs. That was easier years ago when rump didn't support devices, but brings no gain now. This allows us to include the real specfs in rump.
1.21	02-Jan-2009	pooka	Include kernel printf routines in rump instead of relying on the magic libc symbol. This also allows to bid farewell to subr_prf2.c and merge the contents back to subr_prf.c. The host kernel bridging is now done via rumpuser_putchar().
1.20	29-Dec-2008	pooka	Switch i386 away from rump/include/machine. This means that rump on i386 now uses the native kernel ABI. This in turn means that rump modules and kernel modules are binary equivalent and can be used interchangeably.
1.19	29-Dec-2008	pooka	Register a dummy block device for rump, since some file systems do a sanity check to see if the block device exists. This dummy block device should eventually replace rump specfs.
1.18	16-Dec-2008	pooka	Make rumpflushva flush only the atop info for a certain uvm object. Better, but still not completely race-free (if two threads call RUMP_VOP_PUTPAGES() directly for the same vm object).
1.17	13-Dec-2008	pooka	Get rid of local machine/{mutex,rwlock}.h files by treating the object storage as a single pointer (all archs have at least one uintptr_t in the objects).
1.16	27-Nov-2008	pooka	Remove the whole magic ubc window thingie. All file systems use ubc_uiomove() now, so we can hook ourselves there.
1.15	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.14	18-Nov-2008	pooka	Pass biodone() to rumpuser as a callback instead of hardcoding it. Also, explicitly init rumpuser async io thread.
1.13	13-Oct-2008	pooka	branches: 1.13.2; rump_enosys() is autogenerated into rump_syscalls (makes things actually work)
1.12	13-Oct-2008	pooka	add rump_enosys()
1.11	10-Oct-2008	pooka	Support callouts and call callout_hardclock() from the timer interrupt thread. The sleepq implementation required for callouts is horrible, kludged only for callouts, and generally unacceptable. It needs revisiting, but I'm not sure yet should rump or kern_timeout be improved. It's almost untested as of now, but committing this will give me some maneuvering space while letting application compile.
1.10	12-Aug-2008	pooka	Make it possible to control starting of threads per env variable instead of only at compile-time.
1.9	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.8	24-Jan-2008	pooka	branches: 1.8.6; 1.8.10; 1.8.12; 1.8.14; 1.8.16; Use namei() etc. from kernel sources instead of a reimplementation. To accommodate, give the rootvnode its own vnode op vector with a simple lookup operation. This is used for looking up the file system's device vnode instead of doing that directly in a homesmoked namei().
1.7	25-Dec-2007	perry	Convert many of the uses of __attribute__ to equivalent __packed, __unused and __dead macros from cdefs.h
1.6	07-Nov-2007	pooka	branches: 1.6.2; 1.6.6; implement _kernel_lock{,_unlock}()
1.5	06-Nov-2007	pooka	Sprinkle some more locking, especially to the vm. Due to some additional fixes, it's now possible to run file systems with spinlocks actually enabled. The genfs_putpages() locking is still working only due to greater powers, but I'll eventually get around to fixing it.
1.4	04-Nov-2007	pooka	branches: 1.4.2; * sprinkle some locking into the vm code * avoid extra insert+search+remove step in file systems using ubc_uiomove() instead of standard uiomove()
1.3	31-Oct-2007	pooka	branches: 1.3.2; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.2	01-Sep-2007	pooka	branches: 1.2.2; 1.2.4; 1.2.8; 1.2.10; * fill struct buf a little better * hop, skip & jump to make uvm_pageratop work
1.1	20-Aug-2007	pooka	branches: 1.1.2; add rump private parts I forgot to commit earlier today
1.1.2.4	23-Mar-2008	matt	sync with HEAD
1.1.2.3	09-Jan-2008	matt	sync with HEAD
1.1.2.2	08-Nov-2007	matt	sync with -HEAD
1.1.2.1	06-Nov-2007	matt	sync with HEAD
1.2.10.1	13-Nov-2007	bouyer	Sync with HEAD
1.2.8.2	09-Oct-2007	ad	Sync with head.
1.2.8.1	01-Sep-2007	ad	file rump_private.h was added on branch vmlocking on 2007-10-09 13:45:04 +0000
1.2.4.5	04-Feb-2008	yamt	sync with head.
1.2.4.4	21-Jan-2008	yamt	sync with head
1.2.4.3	15-Nov-2007	yamt	sync with head.
1.2.4.2	03-Sep-2007	yamt	sync with head.
1.2.4.1	01-Sep-2007	yamt	file rump_private.h was added on branch yamt-lazymbuf on 2007-09-03 14:45:35 +0000
1.2.2.2	03-Sep-2007	skrll	Sync with HEAD.
1.2.2.1	01-Sep-2007	skrll	file rump_private.h was added on branch nick-csl-alignment on 2007-09-03 10:23:56 +0000
1.3.2.6	11-Nov-2007	joerg	Sync with HEAD.
1.3.2.5	06-Nov-2007	joerg	Sync with HEAD.
1.3.2.4	04-Nov-2007	jmcneill	Sync with HEAD.
1.3.2.3	02-Nov-2007	joerg	Remove the rest of the unintentional diff in sys/rump.
1.3.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.3.2.1	31-Oct-2007	joerg	file rump_private.h was added on branch jmcneill-pm on 2007-10-31 23:14:17 +0000
1.4.2.2	18-Feb-2008	mjf	Sync with HEAD.
1.4.2.1	19-Nov-2007	mjf	Sync with HEAD.
1.6.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.6.2.1	26-Dec-2007	ad	Sync with head.
1.8.16.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.8.16.1	19-Oct-2008	haad	Sync with HEAD.
1.8.14.1	31-Jul-2008	simonb	Sync with head.
1.8.12.2	10-Oct-2008	skrll	Sync with HEAD.
1.8.12.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.8.10.4	09-Oct-2010	yamt	sync with head
1.8.10.3	11-Aug-2010	yamt	sync with head.
1.8.10.2	11-Mar-2010	yamt	sync with head
1.8.10.1	04-May-2009	yamt	sync with head.
1.8.6.2	17-Jan-2009	mjf	Sync with HEAD.
1.8.6.1	28-Sep-2008	mjf	Sync with HEAD.
1.13.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.13.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.13.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.24.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.42.2.4	06-Nov-2010	uebayasi	Sync with HEAD.
1.42.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.42.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.42.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.43.2.4	21-Apr-2011	rmind	sync with head
1.43.2.3	05-Mar-2011	rmind	sync with head
1.43.2.2	03-Jul-2010	rmind	sync with head
1.43.2.1	30-May-2010	rmind	sync with head
1.69.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.70.14.5	03-Dec-2017	jdolecek	update from HEAD
1.70.14.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.70.14.3	23-Jun-2013	tls	resync from head
1.70.14.2	25-Feb-2013	tls	resync with head
1.70.14.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.70.4.3	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.70.4.2	23-Jan-2013	yamt	sync with head
1.70.4.1	30-Oct-2012	yamt	sync with head
1.74.6.1	18-May-2014	rmind	sync with head
1.80.2.1	10-Aug-2014	tls	Rebase.
1.85.4.3	19-Mar-2016	skrll	Sync with HEAD
1.85.4.2	06-Jun-2015	skrll	Sync with HEAD
1.85.4.1	06-Apr-2015	skrll	Sync with HEAD
1.164	09-Oct-2024	christos	regen
1.163	05-Oct-2024	mlelstv	regen
1.162	03-Oct-2024	christos	regen
1.161	20-May-2024	christos	branches: 1.161.2; regen
1.160	19-May-2024	christos	regen
1.159	28-Jul-2023	christos	regen
1.158	10-Jul-2023	christos	Regen
1.157	01-Nov-2021	thorpej	regen for "struct sigaltstack" -> "stack_t"
1.156	19-Sep-2021	thorpej	Regen for eventfd(2) and timerfd(2).
1.155	02-Nov-2020	christos	regen
1.154	14-Aug-2020	riastradh	branches: 1.154.2; regen
1.153	11-Jun-2020	dholland	Regen with new makesyscalls. (the large diff of rump_syscalls.h has been checked and was the point of the makesyscalls change)
1.152	02-Jun-2020	kamil	Regenerate syscalls Respect syscall alias names in rump. No binary change in this version. The previous commit was interrupted in the middle by CVS network outage.
1.151	02-Jun-2020	kamil	Regenerate native NetBSD syscalls The only change is rump repecting syscall alias names. No binary change.
1.150	16-May-2020	christos	Add ACL support for FFS. From FreeBSD.
1.149	26-Apr-2020	thorpej	Regen for futex call relocation.
1.148	26-Apr-2020	thorpej	Regen for native futex calls.
1.147	25-Apr-2020	bouyer	Merge the bouyer-xenpvh branch, bringing in Xen PV drivers support under HVM guests in GENERIC. Xen support can be disabled at runtime with boot -c disable hypervisor
1.146	22-Apr-2020	thorpej	Regen for removal of _lwp_gettid(2).
1.145	04-Apr-2020	thorpej	branches: 1.145.2; Regen for _lwp_gettid(2).
1.144	21-Jan-2020	pgoyette	Regen
1.143	09-Oct-2019	christos	branches: 1.143.2; regen
1.142	22-Sep-2019	christos	regen
1.141	27-Jan-2019	pgoyette	Merge the [pgoyette-compat] branch
1.140	10-Aug-2018	pgoyette	Regen
1.139	31-Jul-2018	rjs	regen.
1.138	12-Jul-2018	maxv	Remove the kernel PMC code. Sent yesterday on tech-kern@. This change: * Removes "options PERFCTRS", the associated includes, and the associated ifdefs. In doing so, it removes several XXXSMPs in the MI code, which is good. * Removes the PMC code of ARM XSCALE. * Removes all the pmc.h files. They were all empty, except for ARM XSCALE. * Reorders the x86 PMC code not to rely on the legacy pmc.h file. The definitions are put in sysarch.h. * Removes the kern/sys_pmc.c file, and along with it, the sys_pmc_control and sys_pmc_get_info syscalls. They are marked as OBSOL in kern, netbsd32 and rump. * Removes the pmc_evid_t and pmc_ctr_t types. * Removes all the associated man pages. The sets are marked as obsolete.
1.137	06-Jan-2018	kamil	branches: 1.137.2; 1.137.4; Revert vadvise(2) removal This system call was used in legacy Lisp code, that was inherited to modern age and still compiled against supported compat layers (e.g. in clisp, oaklisp, Franz Lisp). It used to instruct the kernel about paging policy (G/C aware, flush etc). Newly compiled code (assuming that it will detect vadvise()) will use the libc stub for vadvise(). The headers for this interface are gone. vadvise(2) could be marked as COMPAT_80, but as long as we support ultrix, sunos or aout68k ABI, don't bother with this. Requested by <mrg>
1.136	19-Dec-2017	kamil	Drop SYS_vadvise The (o)vadvise syscall is dummy since the beginning of NetBSD. It is an obsolete remnant from the old UNIX. Sponsored by <The NetBSD Foundation>
1.135	19-Dec-2017	kamil	Drop SYS_sbrk sbrk - change data segment size This syscall is dummy since the inception of the project. Sponsored by <The NetBSD Foundation>
1.134	19-Dec-2017	kamil	Drop the sstk(2) syscall stub sstk - change stack section size This functionality has never been implemented and is a remnant from 16-bit UNIX. This stub appeared with the first NetBSD commit. Sponsored by <The NetBSD Foundation>
1.133	08-Dec-2017	christos	regen XXX: pullup-8
1.132	10-May-2017	riastradh	regen
1.131	13-Jan-2017	christos	branches: 1.131.6; regen
1.130	02-Nov-2016	pgoyette	Forgot these two generated files...
1.129	03-Jul-2016	christos	branches: 1.129.2; regen
1.128	06-May-2016	pooka	regen syscall files
1.127	23-Apr-2016	christos	regen
1.126	03-Apr-2016	christos	regen
1.125	03-Apr-2016	christos	regen
1.124	02-Apr-2016	christos	regen
1.123	26-Jan-2016	pooka	regen syscall files
1.122	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.121	03-Dec-2015	pgoyette	Regen
1.120	01-Dec-2015	pgoyette	Regen
1.119	30-Nov-2015	pgoyette	Finish the regen - some of the files from sys/kern got committed accidentally with the fix to makesyscalls.sh - sorry about that.
1.118	30-Nov-2015	pgoyette	Regen for 7.99.23
1.117	14-Oct-2015	christos	CID 1327233: Expicitly ignore return values of syscalls that don't fail.
1.116	10-Oct-2015	pgoyette	Regen
1.115	24-Sep-2015	christos	regen
1.114	24-Aug-2015	pooka	regen
1.113	18-Jun-2015	pooka	regen
1.112	13-May-2015	pgoyette	Regenerate
1.111	10-May-2015	pgoyette	Regen for changes related to separation of compat_sysv syscalls into a separate module.
1.110	09-May-2015	pgoyette	Regen again, this time without the extra word in the "generated from" line.
1.109	09-May-2015	pgoyette	Regen from syscalls.master
1.108	08-Apr-2015	justin	regen after syscall update
1.107	08-Mar-2015	christos	regen
1.106	07-Mar-2015	christos	regen
1.105	25-Feb-2015	christos	belated regen (posix_fallocate, readlinkat)
1.104	25-Jul-2014	dholland	branches: 1.104.2; 1.104.4; Regen for fdiscard and posix_fallocate.
1.103	24-Jul-2014	pooka	regen
1.102	23-Jul-2014	pooka	regen
1.101	12-Jun-2014	joerg	Regenerate
1.100	27-Apr-2014	pooka	Eliminate weak symbols from rump kernel syscall handlers, part 5: regen syscalls to eliminate weak aliases and link-time initialization
1.99	09-Apr-2014	pooka	regen
1.98	14-Mar-2014	pooka	branches: 1.98.2; regen: time/timer related syscalls for rump kernels
1.97	11-Dec-2013	pooka	reregengen
1.96	09-Dec-2013	pooka	regen
1.95	09-Dec-2013	pooka	regen
1.94	09-Dec-2013	pooka	regen
1.93	09-Dec-2013	pooka	regen
1.92	17-Oct-2013	njoly	Regen for mknodat(2) device argument type change.
1.91	10-Sep-2013	pooka	regen
1.90	03-Sep-2013	pooka	regen
1.89	30-Aug-2013	pooka	regen
1.88	15-Aug-2013	pooka	regen
1.87	10-May-2013	christos	branches: 1.87.2; regen (stale)
1.86	07-Mar-2013	pooka	regen
1.85	17-Jan-2013	pooka	regen
1.84	02-Oct-2012	christos	regen
1.83	20-Sep-2012	pooka	regen
1.82	03-Aug-2012	pooka	branches: 1.82.2; reregen
1.81	03-Aug-2012	pooka	regen
1.80	20-Jul-2012	pooka	reregen
1.79	20-Jul-2012	pooka	regen
1.78	08-Mar-2012	joerg	Implement sem_timedwait.
1.77	11-Feb-2012	martin	branches: 1.77.2; Regen for posix_spawn
1.76	01-Feb-2012	dholland	Regen syscalls with proper id info.
1.75	01-Feb-2012	dholland	Change the syscall API for quotas over to the new non-proplib one. - struct vfs_quotactl_args -> struct quotactl_args - add sys/stdint.h to sys/quotactl.h for clean userland build - install sys/quotactl.h in /usr/include - update set lists for same - add new marshalling code in libquota - add new unmarshalling code in vfs_syscalls.c - discard proplib interpreter code in vfs_quotactl.c - add dispatching code for the 14 quotactl ops in vfs_quotactl.c - mark the proplib quotactl syscall obsolete - add a new syscall number for the new quotactl syscall - change the name of the syscall to __quotactl() - remove the decl of the old quotactl from quota/quotaprop.h - add a decl of the new quotactl to sys/quotactl.h - update the libc build - update ktruss - remove proplib marshalling code from libquota - update copy of syscall table in gdb ppc sources - hack rumphijack to accomodate new quotactl name (as I recall, pooka wanted such a name change to simplify something, but I don't really see what/how) This change appears to require a kernel version bump for rumpish reasons.
1.74	08-Aug-2011	manu	branches: 1.74.2; 1.74.6; regen
1.73	18-Jul-2011	drochner	regen after *setxattr constification
1.72	26-Jun-2011	christos	regen
1.71	08-Mar-2011	pooka	regen: include rumpclient syscall headers from source tree instead of host
1.70	06-Mar-2011	bouyer	merge the bouyer-quota2 branch. This adds a new on-disk format to store disk quota usage and limits, integrated with ffs metadata. Usage is checked by fsck_ffs (no more quotacheck) and is covered by the WAPBL journal. Enabled with kernel option QUOTA2 (added where QUOTA was enabled in kernel config files), turned on with tunefs(8) on a per-filesystem basis. mount_mfs(8) can also turn quotas on. See http://mail-index.netbsd.org/tech-kern/2011/02/19/msg010025.html for details.
1.69	22-Feb-2011	pooka	omstart
1.68	22-Feb-2011	pooka	regenagain: make returning off_t work (without breaking other return types on some archs)
1.67	22-Feb-2011	pooka	unregen
1.66	22-Feb-2011	pooka	regen: cast rval to return type instead of just using rval[0]
1.65	21-Feb-2011	pooka	regen: NOERR syscalls
1.64	21-Feb-2011	pooka	regen: preadv/pwritev
1.63	21-Feb-2011	pooka	regen: always explicitly set errno (fixes some apps)
1.62	21-Feb-2011	pooka	commit regen for int -> pid_t fix
1.61	17-Jan-2011	pooka	branches: 1.61.2; regen: more compat syscalls
1.60	17-Jan-2011	pooka	regen: rework rump syscall stubs (see makesyscalls.sh log for details)
1.59	10-Jan-2011	christos	branches: 1.59.2; regen
1.58	30-Dec-2010	pooka	regen for comments
1.57	30-Dec-2010	pooka	regen: SYCALL_NOSYS in rump_sysent[]
1.56	30-Dec-2010	pooka	regen: whitespace polish police
1.55	17-Nov-2010	pooka	regen: optimize local syscall path a bit
1.54	11-Nov-2010	pooka	+posix_fadvise
1.53	04-Nov-2010	pooka	regen: standalone client support for rump syscalls
1.52	01-Nov-2010	pooka	regen: whitespace blues
1.51	07-Sep-2010	pooka	regen: getcwd
1.50	06-Sep-2010	pooka	regen: umask
1.49	30-Aug-2010	pooka	regen: rump syscalls for kern_prot interfaces
1.48	30-Aug-2010	pooka	Empty commit to show makesyscalls.sh rev 1.99 didn't change anything (yet).
1.47	19-Jul-2010	pooka	Regen syscalls to get compat header included.
1.46	10-Jun-2010	pooka	regen: ksem syscalls
1.45	04-Jun-2010	njoly	Regen for pathconf/fpathconf rumpification.
1.44	11-May-2010	pooka	regen: _RUMPKERNEL -> _KERNEL
1.43	27-Apr-2010	pooka	regen: rump_enosys -> sys_nomodule for modular system calls
1.42	21-Apr-2010	pooka	regen: get/setrlimit
1.41	05-Mar-2010	pooka	branches: 1.41.2; regen (for lfs syscalls #ifdef removal).
1.40	26-Nov-2009	pooka	branches: 1.40.2; regen for rump_sys_pipe()
1.39	26-Nov-2009	pooka	regen: retval -> retval[2]
1.38	26-Nov-2009	pooka	regen: rump_sys_modctl()
1.37	13-Oct-2009	pooka	regen: fix rump varargs syscalls prototypes
1.36	21-Jul-2009	pooka	regen: fh syscalls
1.35	15-May-2009	pooka	regen: removal of pad arguments from the public interfaces
1.34	28-Mar-2009	pooka	regen: new syscalls
1.33	19-Mar-2009	pooka	regen: rump_sys_mount()
1.32	18-Mar-2009	pooka	regen: kevent and kqueue
1.31	18-Mar-2009	pooka	regen: arg -> callarg
1.30	18-Mar-2009	cegger	Ansify function definitions w/o arguments. Generated with sed.
1.29	20-Feb-2009	pooka	regen: make syscalls through a table
1.28	26-Jan-2009	pooka	branches: 1.28.2; regen for new syscalls
1.27	23-Jan-2009	pooka	regen: int *error is dead.
1.26	14-Jan-2009	pooka	regen: internal prototype for rump_syscalls.c
1.25	13-Jan-2009	pooka	Regen. We now have compat __RENAME(). E.g. what was previously rump_sys___stat50() is now rump_sys_stat() from the code.
1.24	11-Jan-2009	tsutsui	Regen to pull proper "created from" revision strings.
1.23	11-Jan-2009	christos	merge christos-time_t
1.22	26-Nov-2008	pooka	regen
1.21	16-Nov-2008	pooka	regen
1.20	16-Oct-2008	wrstuden	branches: 1.20.2; 1.20.4; 1.20.8; Regen syscall tables. I forgot to do it after revivesa. While pooka did some, not all are regenerated. Do them all at once for consistency.
1.19	16-Oct-2008	pooka	regen: ioctl
1.18	15-Oct-2008	pooka	regen: few networking calls
1.17	15-Oct-2008	wrstuden	Merge wrstuden-revivesa into HEAD.
1.16	13-Oct-2008	pooka	regen: properly create weak references to sys_foo()
1.15	13-Oct-2008	pooka	regen - weak aliasing for default syscall
1.14	07-Sep-2008	pooka	regen: return -1 for error
1.13	01-Aug-2008	pooka	regen: sys___sysctl
1.12	16-Jul-2008	pooka	regen: fsync
1.11	07-Jul-2008	pooka	branches: 1.11.2; regen: u times, lu times, you know i had my share
1.10	01-Jul-2008	pooka	regen
1.9	17-Jun-2008	tsutsui	Regen from syscalls.master rev 1.204.
1.8	29-May-2008	pooka	branches: 1.8.2; regen
1.7	24-Apr-2008	ad	branches: 1.7.2; 1.7.4; Regen.
1.6	21-Apr-2008	ad	Regen.
1.5	27-Mar-2008	ad	branches: 1.5.2; 1.5.4; 1.5.6; Regen.
1.4	24-Mar-2008	yamt	regen.
1.3	24-Mar-2008	yamt	regen.
1.2	21-Mar-2008	ad	branches: 1.2.2; 1.2.4; Er, regen...
1.1	11-Mar-2008	pooka	branches: 1.1.2; gen
1.1.2.3	24-Mar-2008	yamt	sync with head.
1.1.2.2	17-Mar-2008	yamt	sync with head.
1.1.2.1	11-Mar-2008	yamt	file rump_syscalls.c was added on branch yamt-lazymbuf on 2008-03-17 09:15:46 +0000
1.2.4.2	24-Mar-2008	keiichi	sync with head.
1.2.4.1	21-Mar-2008	keiichi	file rump_syscalls.c was added on branch keiichi-mipv6 on 2008-03-24 07:16:28 +0000
1.2.2.2	23-Mar-2008	matt	sync with HEAD
1.2.2.1	21-Mar-2008	matt	file rump_syscalls.c was added on branch matt-armv6 on 2008-03-23 02:05:09 +0000
1.5.6.2	04-Jun-2008	yamt	sync with head
1.5.6.1	18-May-2008	yamt	sync with head.
1.5.4.7	17-Jan-2009	mjf	Sync with HEAD.
1.5.4.6	28-Sep-2008	mjf	Sync with HEAD.
1.5.4.5	02-Jul-2008	mjf	Sync with HEAD.
1.5.4.4	29-Jun-2008	mjf	Sync with HEAD.
1.5.4.3	02-Jun-2008	mjf	Sync with HEAD.
1.5.4.2	03-Apr-2008	mjf	Sync with HEAD.
1.5.4.1	27-Mar-2008	mjf	file rump_syscalls.c was added on branch mjf-devfs2 on 2008-04-03 12:43:11 +0000
1.5.2.9	29-Dec-2008	christos	regen
1.5.2.8	28-Dec-2008	christos	missing const
1.5.2.7	27-Dec-2008	christos	merge with head.
1.5.2.6	20-Nov-2008	christos	catch up with head.
1.5.2.5	20-Nov-2008	christos	merge with head.
1.5.2.4	09-Nov-2008	christos	regen
1.5.2.3	09-Nov-2008	christos	regen
1.5.2.2	01-Nov-2008	christos	Sync with head.
1.5.2.1	29-Mar-2008	christos	Welcome to the time_t=long long dev_t=uint64_t branch.
1.7.4.6	24-Sep-2008	wrstuden	Merge in changes between wrstuden-revivesa-base-2 and wrstuden-revivesa-base-3.
1.7.4.5	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.7.4.4	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.7.4.3	28-May-2008	wrstuden	Regen.
1.7.4.2	14-May-2008	wrstuden	Per discussion with ad, remove most of the #include <sys/sa.h> lines as they were including sa.h just for the type(s) needed for syscallargs.h. Instead, create a new file, sys/satypes.h, which contains just the types needed for syscallargs.h. Yes, there's only one now, but that may change and it's probably more likely to change if it'd be difficult to handle. :-) Per discussion with matt at n dot o, add an include of satypes.h to sigtypes.h. Upcall handlers are kinda signal handlers, and signalling is the header file that's already included for syscallargs.h that closest matches SA. This shaves about 3000 lines off of the diff of the branch relative to the base. That also represents about 18% of the total before this checkin. I think this reduction is very good thing.
1.7.4.1	10-May-2008	wrstuden	Initial checkin of re-adding SA. Everything except kern_sa.c compiles in GENERIC for i386. This is still a work-in-progress, but this checkin covers most of the mechanical work (changing signalling to be able to accomidate SA's process-wide signalling and re-adding includes of sys/sa.h and savar.h). Subsequent changes will be much more interesting. Also, kern_sa.c has received partial cleanup. There's still more to do, though.
1.7.2.6	09-Oct-2010	yamt	sync with head
1.7.2.5	11-Aug-2010	yamt	sync with head.
1.7.2.4	11-Mar-2010	yamt	sync with head
1.7.2.3	19-Aug-2009	yamt	sync with head.
1.7.2.2	16-May-2009	yamt	sync with head
1.7.2.1	04-May-2009	yamt	sync with head.
1.8.2.3	18-Jul-2008	simonb	Sync with head.
1.8.2.2	03-Jul-2008	simonb	Sync with head.
1.8.2.1	18-Jun-2008	simonb	Sync with head.
1.11.2.3	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.11.2.2	19-Oct-2008	haad	Sync with HEAD.
1.11.2.1	07-Jul-2008	haad	file rump_syscalls.c was added on branch haad-dm on 2008-10-19 22:18:07 +0000
1.20.8.1	21-Apr-2010	matt	sync to netbsd-5
1.20.4.1	17-Sep-2011	bouyer	Pull up following revision(s) (requested by manu in ticket #1658): sys/rump/include/rump/rump_syscalls.h: revision 1.52 via patch sys/kern/init_sysent.c: revision 1.257 via patch sys/rump/include/rump/rumpvnode_if.h: revision 1.12 via patch lib/libc/sys/Makefile.inc: revision 1.208 via patch sys/sys/syscallargs.h: revision 1.227 via patch sys/kern/kern_exec.c: revision 1.317 via patch sys/rump/librump/rumpkern/rump_syscalls.c: revision 1.74 via patch include/limits.h: revision 1.30 via patch sys/kern/syscalls.master: revision 1.251 via patch sys/sys/vnode_if.h: revision 1.83 via patch sys/sys/fcntl.h: revision 1.40 via patch sys/sys/fcntl.h: revision 1.41 via patch sys/kern/vfs_syscalls.c: revision 1.433 via patch sys/rump/librump/rumpvfs/rumpvnode_if.c: revision 1.11 via patch sys/kern/syscalls.c: revision 1.248 via patch sys/sys/syscall.h: revision 1.244 via patch lib/libc/sys/link.2: revision 1.25 via patch include/unistd.h: revision 1.127 via patch distrib/sets/lists/comp/mi: revision 1.1659 via patch sys/sys/stat.h: revision 1.61 via patch First stage of support for Extended API set 2. Most of the think is unimplemented, except enough of linkat(2) to hardlink to a symlink. Everything new in headers is guarded #ifdef _INCOMPLETE_XOPEN_C063 since some software (e.g.: xcvs in our own tree) will assume they can use openat(2) when AT_FDCWD is defined. _INCOMPLETE_XOPEN_C063 will go away once support will be completed. regen improve comment about AT_* defines: they are not only used by linkat(2) Add macros to hide OpenGroup extened API set 2 from GNU configure. This is a temporary workaround until the implementation is completed.
1.20.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.20.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.20.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.28.2.2	23-Jul-2009	jym	Sync with HEAD.
1.28.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.40.2.4	06-Nov-2010	uebayasi	Sync with HEAD.
1.40.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.40.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.40.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.41.2.4	21-Apr-2011	rmind	sync with head
1.41.2.3	05-Mar-2011	rmind	sync with head
1.41.2.2	03-Jul-2010	rmind	sync with head
1.41.2.1	30-May-2010	rmind	sync with head
1.59.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.61.2.2	05-Mar-2011	bouyer	Sync with HEAD
1.61.2.1	20-Jan-2011	bouyer	Snapshot of work in progress on a modernised disk quota system: - new quotactl syscall (versionned for backward compat), which takes as parameter a path to a mount point, and a prop_dictionary (in plistref format) describing commands and arguments. For each command, status and data are returned as a prop_dictionary. quota commands features will be added to take advantage of this, exporting quota data or getting quota commands as plists. - new on disk-format storage (all 64bit wide), integrated to metadata for ffs (and playing nicely with wapbl). Quotas are enabled on a ffs filesystem via superblock flags. tunefs(8) can enable or disable quotas. On a quota-enabled filesystem, fsck_ffs(8) will track per-uid/gid block and inode usages, and will check and update quotas in Pass 6. quota usage and limits are stored in unliked files (one for users, one for groups)l fsck_ffs(8) will create the files if needed, or free them if needed. This means that after enabling or disabling quotas on a filesystem; a fsck_ffs(8) run is required. quotacheck(8) is not needed any more, on a unclean shutdown fsck or journal replay will take care of fixing quotas. newfs(8) can create a ready-to-mount quota-enabled filesystem (superblock flags are set and quota inodes are created). Other new features or semantic changes: - default quota datas, applied to users or groups which don't already have a quota entry - per-user/group grace time (instead of a filesystem global one) - 0 really means "nothing allowed at all", not "no limit". If you want "no limit", set the limit to UQUAD_MAX (tools will understand "unlimited" and "-") A quota file is structured as follow: it starts with a header, containing a few per-filesystem values, and the default quota limits. Quota entries are linked together as a simple list, each entry has a pointer (as an offset withing the file) to the next. The header has a pointer to a list of free quota entries, and a hash table of in-use entries. The size of the hash table depends on the filesystem block size (header+hash table should fit in the first block). The file is not sparse and is a multiple of filesystem block size (when the free quota entry list is empty a new filesystem block is allocated). quota entries to not cross filesystem block boundaries. In memory, the kernel keeps a cache of recently used quota entries as a reference to the block number, and offset withing the block. The quota entry itself is keept in the buf cache. fsck_ffs(8), tunefs(8) and newfs(8) supports are completed (with related atf tests :) The kernel can update disk usage and report it via quotactl(2). Todo: enforce quotas limits (limits are not checked by kernel yet) update repquota, edquota and rpc.rquotad to the new world implement compat_50_quotactl ioctl. update quotactl(2) man page fsck_ffs required fixes so that allocating new blocks or inodes will properly update the superblock and cg sumaries. This was not an issue up to now because superblock and cg sumaries check happened last, but now allocations or frees can happen in pass 6.
1.74.6.2	11-Mar-2012	mrg	sync to latest -current
1.74.6.1	18-Feb-2012	mrg	merge to -current.
1.74.2.4	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.74.2.3	23-Jan-2013	yamt	sync with head
1.74.2.2	30-Oct-2012	yamt	sync with head
1.74.2.1	17-Apr-2012	yamt	sync with head
1.77.2.1	14-Apr-2015	msaitoh	Pull up following revision(s) (requested by khorben in ticket #1264): include/unistd.h 1.144 sys/kern/init_sysent.c regen sys/kern/syscalls.c regen sys/kern/syscalls.master 1.272 sys/rump/include/rump/rump_syscalls.h regen sys/rump/librump/rumpkern/rump_syscalls.c regen sys/sys/syscall.h regen sys/sys/syscallargs.h regen sys/compat/netbds32/netbsd32_syscall.h regen sys/compat/netbds32/netbsd32_syscallargs.h regen sys/compat/netbds32/netbsd32_syscalls.c regen sys/compat/netbds32/netbsd32_sysent.c regen sys/compat/netbsd32/syscalls.master 1.102 Fix return type of the readlinkat(2) syscall. PR#49684.
1.82.2.5	03-Dec-2017	jdolecek	update from HEAD
1.82.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.82.2.3	23-Jun-2013	tls	resync from head
1.82.2.2	25-Feb-2013	tls	resync with head
1.82.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.87.2.1	18-May-2014	rmind	sync with head
1.98.2.1	10-Aug-2014	tls	Rebase.
1.104.4.9	05-Dec-2016	skrll	Sync with HEAD
1.104.4.8	09-Jul-2016	skrll	Sync with HEAD
1.104.4.7	29-May-2016	skrll	Sync with HEAD
1.104.4.6	22-Apr-2016	skrll	Sync with HEAD
1.104.4.5	19-Mar-2016	skrll	Sync with HEAD
1.104.4.4	27-Dec-2015	skrll	Sync with HEAD (as of 26th Dec)
1.104.4.3	22-Sep-2015	skrll	Sync with HEAD
1.104.4.2	06-Jun-2015	skrll	Sync with HEAD
1.104.4.1	06-Apr-2015	skrll	Sync with HEAD
1.104.2.1	24-Feb-2015	martin	regen
1.129.2.2	20-Mar-2017	pgoyette	Sync with HEAD
1.129.2.1	04-Nov-2016	pgoyette	Sync with HEAD
1.131.6.1	11-May-2017	pgoyette	Sync with HEAD
1.137.4.2	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.137.4.1	10-Jun-2019	christos	Sync with HEAD
1.137.2.9	06-Sep-2018	pgoyette	Sync with HEAD Resolve a couple of conflicts (result of the uimin/uimax changes)
1.137.2.8	28-Jul-2018	pgoyette	Sync with HEAD
1.137.2.7	18-Apr-2018	pgoyette	Regen
1.137.2.6	27-Mar-2018	pgoyette	Regen
1.137.2.5	25-Mar-2018	pgoyette	Regen
1.137.2.4	17-Mar-2018	pgoyette	Regen
1.137.2.3	16-Mar-2018	pgoyette	Regen
1.137.2.2	15-Mar-2018	pgoyette	Regen
1.137.2.1	10-Mar-2018	pgoyette	Regen
1.143.2.1	25-Jan-2020	ad	Sync with head.
1.145.2.1	25-Apr-2020	bouyer	Sync with bouyer-xenpvh-base2 (HEAD)
1.154.2.3	14-Dec-2020	thorpej	Regen for timerfd.
1.154.2.2	14-Dec-2020	thorpej	Regen for eventfd(2).
1.154.2.1	14-Dec-2020	thorpej	Sync w/ HEAD.
1.161.2.1	02-Aug-2025	perseant	Sync with HEAD
1.21	17-Nov-2008	pooka	regen
1.20	16-Oct-2008	wrstuden	branches: 1.20.2; 1.20.4; 1.20.8; Regen syscall tables. I forgot to do it after revivesa. While pooka did some, not all are regenerated. Do them all at once for consistency.
1.19	16-Oct-2008	pooka	regen: ioctl
1.18	15-Oct-2008	pooka	regen: few networking calls
1.17	15-Oct-2008	wrstuden	Merge wrstuden-revivesa into HEAD.
1.16	13-Oct-2008	pooka	regen: properly create weak references to sys_foo()
1.15	13-Oct-2008	pooka	regen - weak aliasing for default syscall
1.14	07-Sep-2008	pooka	regen: return -1 for error
1.13	01-Aug-2008	pooka	regen: sys___sysctl
1.12	16-Jul-2008	pooka	regen: fsync
1.11	07-Jul-2008	pooka	branches: 1.11.2; regen: u times, lu times, you know i had my share
1.10	01-Jul-2008	pooka	regen
1.9	17-Jun-2008	tsutsui	Regen from syscalls.master rev 1.204.
1.8	29-May-2008	pooka	branches: 1.8.2; regen
1.7	24-Apr-2008	ad	branches: 1.7.2; 1.7.4; Regen.
1.6	21-Apr-2008	ad	Regen.
1.5	27-Mar-2008	ad	branches: 1.5.2; 1.5.4; 1.5.6; Regen.
1.4	24-Mar-2008	yamt	regen.
1.3	24-Mar-2008	yamt	regen.
1.2	21-Mar-2008	ad	branches: 1.2.2; 1.2.4; Er, regen...
1.1	11-Mar-2008	pooka	branches: 1.1.2; gen
1.1.2.3	24-Mar-2008	yamt	sync with head.
1.1.2.2	17-Mar-2008	yamt	sync with head.
1.1.2.1	11-Mar-2008	yamt	file rump_syscalls.h was added on branch yamt-lazymbuf on 2008-03-17 09:15:46 +0000
1.2.4.2	24-Mar-2008	keiichi	sync with head.
1.2.4.1	21-Mar-2008	keiichi	file rump_syscalls.h was added on branch keiichi-mipv6 on 2008-03-24 07:16:28 +0000
1.2.2.2	23-Mar-2008	matt	sync with HEAD
1.2.2.1	21-Mar-2008	matt	file rump_syscalls.h was added on branch matt-armv6 on 2008-03-23 02:05:09 +0000
1.5.6.2	04-Jun-2008	yamt	sync with head
1.5.6.1	18-May-2008	yamt	sync with head.
1.5.4.7	17-Jan-2009	mjf	Sync with HEAD.
1.5.4.6	28-Sep-2008	mjf	Sync with HEAD.
1.5.4.5	02-Jul-2008	mjf	Sync with HEAD.
1.5.4.4	29-Jun-2008	mjf	Sync with HEAD.
1.5.4.3	02-Jun-2008	mjf	Sync with HEAD.
1.5.4.2	03-Apr-2008	mjf	Sync with HEAD.
1.5.4.1	27-Mar-2008	mjf	file rump_syscalls.h was added on branch mjf-devfs2 on 2008-04-03 12:43:11 +0000
1.5.2.5	20-Nov-2008	christos	merge with head.
1.5.2.4	09-Nov-2008	christos	regen
1.5.2.3	09-Nov-2008	christos	regen
1.5.2.2	01-Nov-2008	christos	Sync with head.
1.5.2.1	29-Mar-2008	christos	Welcome to the time_t=long long dev_t=uint64_t branch.
1.7.4.5	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.7.4.4	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.7.4.3	28-May-2008	wrstuden	Regen.
1.7.4.2	14-May-2008	wrstuden	Per discussion with ad, remove most of the #include <sys/sa.h> lines as they were including sa.h just for the type(s) needed for syscallargs.h. Instead, create a new file, sys/satypes.h, which contains just the types needed for syscallargs.h. Yes, there's only one now, but that may change and it's probably more likely to change if it'd be difficult to handle. :-) Per discussion with matt at n dot o, add an include of satypes.h to sigtypes.h. Upcall handlers are kinda signal handlers, and signalling is the header file that's already included for syscallargs.h that closest matches SA. This shaves about 3000 lines off of the diff of the branch relative to the base. That also represents about 18% of the total before this checkin. I think this reduction is very good thing.
1.7.4.1	10-May-2008	wrstuden	Initial checkin of re-adding SA. Everything except kern_sa.c compiles in GENERIC for i386. This is still a work-in-progress, but this checkin covers most of the mechanical work (changing signalling to be able to accomidate SA's process-wide signalling and re-adding includes of sys/sa.h and savar.h). Subsequent changes will be much more interesting. Also, kern_sa.c has received partial cleanup. There's still more to do, though.
1.7.2.1	04-May-2009	yamt	sync with head.
1.8.2.3	18-Jul-2008	simonb	Sync with head.
1.8.2.2	03-Jul-2008	simonb	Sync with head.
1.8.2.1	18-Jun-2008	simonb	Sync with head.
1.11.2.3	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.11.2.2	19-Oct-2008	haad	Sync with HEAD.
1.11.2.1	07-Jul-2008	haad	file rump_syscalls.h was added on branch haad-dm on 2008-10-19 22:18:07 +0000
1.20.8.1	21-Apr-2010	matt	sync to netbsd-5
1.20.4.1	17-Sep-2011	bouyer	Pull up following revision(s) (requested by manu in ticket #1658): sys/rump/include/rump/rump_syscalls.h: revision 1.52 via patch sys/kern/init_sysent.c: revision 1.257 via patch sys/rump/include/rump/rumpvnode_if.h: revision 1.12 via patch lib/libc/sys/Makefile.inc: revision 1.208 via patch sys/sys/syscallargs.h: revision 1.227 via patch sys/kern/kern_exec.c: revision 1.317 via patch sys/rump/librump/rumpkern/rump_syscalls.c: revision 1.74 via patch include/limits.h: revision 1.30 via patch sys/kern/syscalls.master: revision 1.251 via patch sys/sys/vnode_if.h: revision 1.83 via patch sys/sys/fcntl.h: revision 1.40 via patch sys/sys/fcntl.h: revision 1.41 via patch sys/kern/vfs_syscalls.c: revision 1.433 via patch sys/rump/librump/rumpvfs/rumpvnode_if.c: revision 1.11 via patch sys/kern/syscalls.c: revision 1.248 via patch sys/sys/syscall.h: revision 1.244 via patch lib/libc/sys/link.2: revision 1.25 via patch include/unistd.h: revision 1.127 via patch distrib/sets/lists/comp/mi: revision 1.1659 via patch sys/sys/stat.h: revision 1.61 via patch First stage of support for Extended API set 2. Most of the think is unimplemented, except enough of linkat(2) to hardlink to a symlink. Everything new in headers is guarded #ifdef _INCOMPLETE_XOPEN_C063 since some software (e.g.: xcvs in our own tree) will assume they can use openat(2) when AT_FDCWD is defined. _INCOMPLETE_XOPEN_C063 will go away once support will be completed. regen improve comment about AT_* defines: they are not only used by linkat(2) Add macros to hide OpenGroup extened API set 2 from GNU configure. This is a temporary workaround until the implementation is completed.
1.20.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.25	01-Jul-2020	riastradh	copystr is now in libkern; don't redefine it in rumpcopy.c. Should fix build breakage from the copystr changes.
1.24	05-Apr-2020	kamil	Return early on 0-sized transfers (usually to/from NULL-objects) This logic is already present in subr_copy.c:copyin_vmspace() and rumpcopy.c:copyinstr(). This avoids memcpy() calls for NULL objects that is Undefined Behavior, allowed in the kernel space (-fno-delete-null-pointer-checks), but not in userland. Reported by UBSan.
1.23	06-Apr-2019	thorpej	Overhaul the API used to fetch and store individual memory cells in userspace. The old fetch(9) and store(9) APIs (fubyte(), fuword(), subyte(), suword(), etc.) are retired and replaced with new ufetch(9) and ustore(9) APIs that can return proper error codes, etc. and are implemented consistently across all platforms. The interrupt-safe variants are no longer supported (and several of the existing attempts at fuswintr(), etc. were buggy and not actually interrupt-safe). Also augmement the ucas(9) API, making it consistently available on all plaforms, supporting uniprocessor and multiprocessor systems, even those that do not have CAS or LL/SC primitives. Welcome to NetBSD 8.99.37.
1.22	25-May-2016	christos	branches: 1.22.18; Introduce security.pax.mprotect.ptrace sysctl which can be used to bypass mprotect settings so that debuggers can write to the text segment of traced processes so that they can insert breakpoints. Turned off by default. Ok: chuq (for now)
1.21	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.20	18-Apr-2015	pooka	Give remote clients struct pmap storage. Although the pmap is unused, that way we can sure that the pmap macro framework doesn't access all the wrong places.
1.19	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.18	26-Jul-2013	njoly	branches: 1.18.6; Make copyinstr/copyoutstr return EFAULT for special NULL "user" address. Ok pooka@.
1.17	18-Jan-2011	haad	branches: 1.17.6; 1.17.16; 1.17.20; Add support for compiling ZFS and Solaris modules as RUMP libraries. Add some locking and rumpcopy primitives and refactor module building Makefiles to work with both RUMP and kernel modules. This is first part of adding support for regular test of zfs on NetBSD to hunt some bugs and make it stable. Ok by pooka@.
1.16	13-Jan-2011	pooka	branches: 1.16.2; Introduce RUMP_LOCALPROC_P() macro and use it.
1.15	09-Jan-2011	pooka	Shortcircuit remote 0-len copyin/out already in the kernel.
1.14	09-Jan-2011	pooka	accept '\0' as a valid string
1.13	25-Nov-2010	pooka	facepalm, adjust remote copyinstr to work in cases where the end of the max copyin extends to an unmapped page. Noticed, as usual, by tests.
1.12	22-Nov-2010	pooka	the usual wuninit stuff
1.11	22-Nov-2010	pooka	Support physio for remote processes. ==> add support for remote vmspace vmapbuf/vunmapbuf ==> add proper support for copyin/out_vmspace ==> add support for remote vmspace uvm_io ==> add support for non-curproc rumpuser_sp_copyin/out ==> store remote context in vm_map->pmap instead of pthread_specificdata In short, makes read/write of most (all?) block devices work from a remote rump client via rump syscalls.
1.10	17-Nov-2010	pooka	cleanup some old garbage
1.9	09-Nov-2010	pooka	Fix off-by-one in the rpc path of copyinstr()
1.8	09-Nov-2010	pooka	fix copystr/copyinstr/copyoutstr to return ENAMETOOLONG where appropriate
1.7	29-Oct-2010	pooka	minor knf
1.6	27-Oct-2010	pooka	Start rework of system call proxying over socket ("sysproxy"). This incarnation is written in the user namespace as opposed to the previous one which was done in kernel namespace. Also, rump does all the handshaking now instead of excepting an application to come up with the user namespace socket. There's still a lot to do, including making code "a bit" more robust, actually running different clients in a different process inside the kernel and splitting the client side library from librump. I'm committing this now so that I don't lose it, plus it generally works as long as you don't use it in unexcepted ways: i've tested ifconfig(8), route(8), envstat(8) and sysctl(8).
1.5	18-Jul-2010	pooka	Ignore errors when copyin/out len == 0.
1.4	12-Jul-2010	pooka	Implement poor man's (or woman's) fault handler (or handlim). from Stan (or Loretta)
1.3	10-Jun-2010	pooka	Use kern_proc.c instead of a collection of stubs. But what we really wanted from this commit was the support for proc_specificdata. TODO: make creating a new process actually use kern_proc and maybe even add an interface which starts a process with "any pid you don't like"
1.2	04-Nov-2009	pooka	branches: 1.2.2; 1.2.4; 1.2.6; trim trailing whitespace
1.1	04-Nov-2009	pooka	move copy-related routines to their own module
1.2.6.2	05-Mar-2011	rmind	sync with head
1.2.6.1	03-Jul-2010	rmind	sync with head
1.2.4.3	11-Aug-2010	yamt	sync with head.
1.2.4.2	11-Mar-2010	yamt	sync with head
1.2.4.1	04-Nov-2009	yamt	file rumpcopy.c was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.2.2.2	06-Nov-2010	uebayasi	Sync with HEAD.
1.2.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.16.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.17.20.1	28-Aug-2013	rmind	sync with head
1.17.16.2	03-Dec-2017	jdolecek	update from HEAD
1.17.16.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.17.6.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.18.6.4	29-May-2016	skrll	Sync with HEAD
1.18.6.3	19-Mar-2016	skrll	Sync with HEAD
1.18.6.2	06-Jun-2015	skrll	Sync with HEAD
1.18.6.1	06-Apr-2015	skrll	Sync with HEAD
1.22.18.2	08-Apr-2020	martin	Merge changes from current as of 20200406
1.22.18.1	10-Jun-2019	christos	Sync with HEAD
1.5	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.4	22-Jun-2012	rmind	branches: 1.4.2; 1.4.4; rumpkern: - Add subr_kcpuset.c and subr_pserialize.c modules. - Add kcpuset_{running,attached} for RUMP env.
1.3	04-Jan-2011	pooka	branches: 1.3.8; 1.3.14; Add SMP support for all architectures. tested on sparc64 by martin
1.2	27-Apr-2010	pooka	Fix multiple virtual cpu support. ... or at least on x86. CPU_INFO_FOREACH() still isn't MI, and I don't want to support 2^n different versions.
1.1	15-Oct-2009	pooka	branches: 1.1.2; 1.1.4; 1.1.6; forgot to commit with previous batch
1.1.6.2	05-Mar-2011	rmind	sync with head
1.1.6.1	30-May-2010	rmind	sync with head
1.1.4.3	11-Aug-2010	yamt	sync with head.
1.1.4.2	11-Mar-2010	yamt	sync with head
1.1.4.1	15-Oct-2009	yamt	file rumpcpu_generic.c was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.1.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.3.14.1	26-Jun-2012	riz	Pull up following revision(s) (requested by rmind in ticket #365): sys/rump/librump/rumpkern/rumpcpu_generic.c: revision 1.4 sys/net/npf/npf_session.c: revision 1.13 sys/net/npf/npf_tableset.c: revision 1.11 sys/net/npf/npf_state_tcp.c: revision 1.7 sys/net/npf/npf_inet.c: revision 1.12 sys/net/npf/npf.h: revision 1.17 sys/net/npf/npf_instr.c: revision 1.11 usr.sbin/npf/npftest/libnpftest/npf_table_test.c: revision 1.2 sys/net/npf/npf_state.c: revision 1.8 sys/net/npf/npf_log.c: revision 1.4 sys/net/npf/npf_alg.c: revision 1.4 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.118 sys/net/npf/npf_nat.c: revision 1.13 sys/net/npf/npf.c: revision 1.11 sys/net/npf/npf_sendpkt.c: revision 1.11 sys/net/npf/npf_impl.h: revision 1.16 sys/rump/librump/rumpkern/scheduler.c: revision 1.28 rumpkern: - Add subr_kcpuset.c and subr_pserialize.c modules. - Add kcpuset_{running,attached} for RUMP env. NPF: - Rename some functions for consistency and de-inline them. - Fix few invalid asserts (add regressoin test). - Use pserialize(9) for ALG interface. - Minor fixes, sprinkle many comments.
1.3.8.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.3.8.1	30-Oct-2012	yamt	sync with head
1.4.4.1	18-May-2014	rmind	sync with head
1.4.2.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.14	26-Jan-2016	pooka	generate privhdrs to new location
1.13	25-Apr-2014	pooka	branches: 1.13.4; Move the etfs linkage from rumpvfs to rumpkern, and replace the weak alias show with an honest pointer indirection. No client-visible change. (apart from this version working e.g. on musl w/ dlopen)
1.12	10-Mar-2014	pooka	branches: 1.12.2; rump_getversion() does not require a thread context, so make it a straight call instead of being wrapped around rump_pub_getversion().
1.11	07-Mar-2013	pooka	branches: 1.11.6; Support multiple syscall emuls. Rump kernels with only local clients have it easy, since they have to support at most two syscall vectors (some calls such as mount/unmount can be made only through the "native" NetBSD vector). Remote clients are a whole different tin of green beans. This change addresses local clients only.
1.10	02-Jan-2011	pooka	branches: 1.10.8; 1.10.18; There is a use case where preserving the parent's fd table is relevant, so to accommodate that change rump_lwproc_newproc() to rump_lwproc_rfork(). The new interface has the rfork() fd table semantics. The equivalent of rump_lwproc_newproc() is rump_lwproc_rfork(RUMP_RFCFDG).
1.9	21-Nov-2010	pooka	Realize the >1yo comment above rump_reboot and retire them to make room for sys_reboot.
1.8	17-Nov-2010	pooka	remove rump_pub_syscall -- unused/unusable
1.7	27-Oct-2010	pooka	Retire the old sysproxy nonsense (as part of doing it slightly better). Introduce rump_pub_syscall() as the generic interface for making system calls with already marshalled arguments. So it's kinda like syscall(2), except it also remembered to breathe instead of having to figure out how to deal with 64bit values.
1.6	01-Sep-2010	pooka	Rewrite rump process and lwp allocation routines now that I have some idea of how they should be done. This change essentially moves the responsibility of pid/lwpid management from the application side into the rump kernel. It also introduces clear rules on what happens when, i.e. introduces semantics (these semantics will be documented on the man page, and more importantly in atf tests).
1.5	14-Apr-2010	pooka	Use "struct kauth_cred *" instead of kauth_cred_t in all exported interfaces. Allows to remove hairbrained _t typedef dance.
1.4	05-Mar-2010	pooka	branches: 1.4.2; 1.4.4; Use improved kernel module interfaces: instead of adding + loading modules in bootstrap, just add them. Load them later the same way as the kernel does: module_init_class(). Change the signature of rump_module_init() to take a vector instead of just one module. All modules in a DSO should be init'd at the same time because they might depend on each other, and code outside the rump kernel cannot know which way. (binary kernel modules are still loaded with rump_sys_modctl() the usual way).
1.3	26-Nov-2009	pooka	branches: 1.3.2; Add rump_kernelfsym_load(), which loads the kernel symbol table.
1.2	15-Oct-2009	pooka	Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.1	14-Oct-2009	pooka	Create rump public interfaces from description tables. This allows us to control and wrap all entry points from "userspace" into rump. This in turn is necessary for the upcoming rump cpu scheduler. For each interface "foo" a public wrapper called "rump_foo" is created. It calls the internal implementation "rumppriv_foo". In case foo is to be called from inside of rump kernel space, the private interface "rumppriv_foo" is used -- the userspace wrapper prototypes are not even exported into the rump kernel namespace. Needless to say, the rump kernel internal interfaces are not exported for users. Now, three classes of interfaces fight for control of rump: + the noble local control interfaces (which this commit addresses) + the insidious rump system calls (which are generated from syscalls.master) + and the evil vnode interfaces (which are generated from vnode_if.src)
1.3.2.3	06-Nov-2010	uebayasi	Sync with HEAD.
1.3.2.2	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.3.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.4.4.2	05-Mar-2011	rmind	sync with head
1.4.4.1	30-May-2010	rmind	sync with head
1.4.2.4	09-Oct-2010	yamt	sync with head
1.4.2.3	11-Aug-2010	yamt	sync with head.
1.4.2.2	11-Mar-2010	yamt	sync with head
1.4.2.1	05-Mar-2010	yamt	file rumpkern.ifspec was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.10.18.3	03-Dec-2017	jdolecek	update from HEAD
1.10.18.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.10.18.1	23-Jun-2013	tls	resync from head
1.10.8.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.11.6.1	18-May-2014	rmind	sync with head
1.12.2.1	10-Aug-2014	tls	Rebase.
1.13.4.1	19-Mar-2016	skrll	Sync with HEAD
1.17	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.16	25-Apr-2014	pooka	branches: 1.16.4; regen
1.15	25-Apr-2014	pooka	regen for etfs move from rumpvfs to rumpkern
1.14	10-Mar-2014	pooka	branches: 1.14.2; rump_getversion() does not require a thread context, so make it a straight call instead of being wrapped around rump_pub_getversion().
1.13	07-Mar-2013	pooka	branches: 1.13.6; * empty log message *
1.12	02-Jan-2011	pooka	branches: 1.12.8; 1.12.18; regen: rump_lwproc_rfork
1.11	21-Nov-2010	pooka	regen: rump_reboot is gone
1.10	17-Nov-2010	pooka	regen: -rump_pub_syscall
1.9	27-Oct-2010	pooka	regen: - rump_sysproxy + rump_syscall
1.8	01-Sep-2010	pooka	regen: new lwp/proc interfaces
1.7	14-Apr-2010	pooka	regen: kauth_cred_t -> struct kauth_cred *
1.6	05-Mar-2010	pooka	branches: 1.6.2; 1.6.4; regen for rump_module interface change
1.5	26-Nov-2009	pooka	branches: 1.5.2; regen: rump_kernelfsym_load()
1.4	15-Oct-2009	pooka	regen: lwp interface changes
1.3	15-Oct-2009	pooka	regen: scheduling points in rump_pub wrappers
1.2	14-Oct-2009	pooka	regen: put all public interfaces created by ifspec into a rump_pub namespace
1.1	14-Oct-2009	pooka	generate rump local interfaces
1.5.2.3	06-Nov-2010	uebayasi	Sync with HEAD.
1.5.2.2	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.5.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.6.4.2	05-Mar-2011	rmind	sync with head
1.6.4.1	30-May-2010	rmind	sync with head
1.6.2.4	09-Oct-2010	yamt	sync with head
1.6.2.3	11-Aug-2010	yamt	sync with head.
1.6.2.2	11-Mar-2010	yamt	sync with head
1.6.2.1	05-Mar-2010	yamt	file rumpkern_if_priv.h was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.12.18.3	03-Dec-2017	jdolecek	update from HEAD
1.12.18.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.12.18.1	23-Jun-2013	tls	resync from head
1.12.8.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.13.6.1	18-May-2014	rmind	sync with head
1.14.2.1	10-Aug-2014	tls	Rebase.
1.16.4.1	19-Mar-2016	skrll	Sync with HEAD
1.18	26-Jan-2016	pooka	regen rump kernel interfaces for header change. (they were already manually edited for a prior commit, so not much change)
1.17	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.16	25-Apr-2014	pooka	branches: 1.16.4; regen
1.15	25-Apr-2014	pooka	regen for etfs move from rumpvfs to rumpkern
1.14	10-Mar-2014	pooka	branches: 1.14.2; rump_getversion() does not require a thread context, so make it a straight call instead of being wrapped around rump_pub_getversion().
1.13	07-Mar-2013	pooka	branches: 1.13.6; * empty log message *
1.12	02-Jan-2011	pooka	branches: 1.12.8; 1.12.18; regen: rump_lwproc_rfork
1.11	21-Nov-2010	pooka	regen: rump_reboot is gone
1.10	17-Nov-2010	pooka	regen: -rump_pub_syscall
1.9	27-Oct-2010	pooka	regen: - rump_sysproxy + rump_syscall
1.8	01-Sep-2010	pooka	regen: new lwp/proc interfaces
1.7	14-Apr-2010	pooka	regen: kauth_cred_t -> struct kauth_cred *
1.6	05-Mar-2010	pooka	branches: 1.6.2; 1.6.4; regen for rump_module interface change
1.5	26-Nov-2009	pooka	branches: 1.5.2; regen: rump_kernelfsym_load()
1.4	15-Oct-2009	pooka	regen: lwp interface changes
1.3	15-Oct-2009	pooka	regen: scheduling points in rump_pub wrappers
1.2	14-Oct-2009	pooka	regen: put all public interfaces created by ifspec into a rump_pub namespace
1.1	14-Oct-2009	pooka	generate rump local interfaces
1.5.2.3	06-Nov-2010	uebayasi	Sync with HEAD.
1.5.2.2	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.5.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.6.4.2	05-Mar-2011	rmind	sync with head
1.6.4.1	30-May-2010	rmind	sync with head
1.6.2.4	09-Oct-2010	yamt	sync with head
1.6.2.3	11-Aug-2010	yamt	sync with head.
1.6.2.2	11-Mar-2010	yamt	sync with head
1.6.2.1	05-Mar-2010	yamt	file rumpkern_if_wrappers.c was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.12.18.3	03-Dec-2017	jdolecek	update from HEAD
1.12.18.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.12.18.1	23-Jun-2013	tls	resync from head
1.12.8.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.13.6.1	18-May-2014	rmind	sync with head
1.14.2.1	10-Aug-2014	tls	Rebase.
1.16.4.1	19-Mar-2016	skrll	Sync with HEAD
1.11	20-May-2024	christos	regen
1.10	19-May-2024	christos	regen
1.9	29-Jul-2023	rin	rump: Regen again to fix missing __kevent100 symbol. makerumpsyscalls.sh requires rebuilt rump libraries installed in /usr/lib or directory specified by its first argument. Now, new failures observed for ATF after __kevent100 addition are fixed at least for aarch64.
1.8	28-Jul-2023	christos	regen
1.7	10-Jul-2023	christos	Regen
1.6	27-May-2020	christos	regen for lpathconf.
1.5	22-Sep-2019	christos	regen
1.4	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.3	18-Jun-2015	pooka	regen
1.2	27-Apr-2014	pooka	branches: 1.2.2; 1.2.4; 1.2.6; 1.2.10; 1.2.12; regen
1.1	27-Apr-2014	pooka	Eliminate weak symbols from rump kernel syscall handlers, part 6: Generate component constructors which establish non-modular syscalls.
1.2.12.2	19-Mar-2016	skrll	Sync with HEAD
1.2.12.1	22-Sep-2015	skrll	Sync with HEAD
1.2.10.3	03-Dec-2017	jdolecek	update from HEAD
1.2.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.10.1	27-Apr-2014	tls	file rumpkern_syscalls.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.2.6.2	10-Aug-2014	tls	Rebase.
1.2.6.1	27-Apr-2014	tls	file rumpkern_syscalls.c was added on branch tls-earlyentropy on 2014-08-10 06:56:51 +0000
1.2.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.4.1	27-Apr-2014	yamt	file rumpkern_syscalls.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.2.2	18-May-2014	rmind	sync with head
1.2.2.1	27-Apr-2014	rmind	file rumpkern_syscalls.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.3	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.2	17-Nov-2008	pooka	reregen to get those most important rcsids right
1.1	17-Nov-2008	pooka	regen
1.55	05-Oct-2023	ad	Arrange to update cached LWP credentials in userret() rather than during syscall/trap entry, eliminating a test+branch on every syscall/trap. This wasn't possible in the 3.99.x timeframe when l->l_cred came about because there wasn't a reliable/timely way to force an ONPROC LWP running on a remote CPU into the kernel (which is just about the only new thing in this scheme).
1.54	04-Oct-2023	ad	Eliminate l->l_ncsw and l->l_nivcsw. From memory think they were added before we had per-LWP struct rusage; the same is now tracked there.
1.53	09-Apr-2022	riastradh	rumpkern/scheduler: Use membar_release. ...but add an XXX comment asking for clarity on what it pairs with.
1.52	01-Nov-2020	christos	PR/55664: Ruslan Nikolaev: Fix: 1. A race condition (bug) in sys/rump/librump/rumpkern/intr.c since rumpuser_cv_signal() is called without holding a mutex 2. sleepq is implemented using a single (global) conditional variable; that should be done per each sleepq separately
1.51	14-Mar-2020	ad	branches: 1.51.4; - Hide the details of SPCF_SHOULDYIELD and related behind a couple of small functions: preempt_point() and preempt_needed(). - preempt(): if the LWP has exceeded its timeslice in kernel, strip it of any priority boost gained earlier from blocking.
1.50	15-Feb-2020	ad	- Move the LW_RUNNING flag back into l_pflag: updating l_flag without lock in softint_dispatch() is risky. May help with the "softint screwup" panic. - Correct the memory barriers around zombies switching into oblivion.
1.49	08-Jan-2020	ad	Hopefully fix some problems seen with MP support on non-x86, in particular where curcpu() is defined as curlwp->l_cpu: - mi_switch(): undo the ~2007ish optimisation to unlock curlwp before calling cpu_switchto(). It's not safe to let other actors mess with the LWP (in particular l->l_cpu) while it's still context switching. This removes l->l_ctxswtch. - Move the LP_RUNNING flag into l->l_flag and rename to LW_RUNNING since it's now covered by the LWP's lock. - Ditch lwp_exit_switchaway() and just call mi_switch() instead. Everything is in cache anyway so it wasn't buying much by trying to avoid saving old state. This means cpu_switchto() will never be called with prevlwp == NULL. - Remove some KERNEL_LOCK handling which hasn't been needed for years.
1.48	16-Dec-2019	ad	branches: 1.48.2; - Extend the per-CPU counters matt@ did to include all of the hot counters in UVM, excluding uvmexp.free, which needs special treatment and will be done with a separate commit. Cuts system time for a build by 20-25% on a 48 CPU machine w/DIAGNOSTIC. - Avoid 64-bit integer divide on every fault (for rnd_add_uint32).
1.47	01-Dec-2019	ad	Another instance of cpu_onproc to replace.
1.46	01-Dec-2019	ad	cpu_onproc -> ci_onproc
1.45	23-Nov-2019	ad	Minor scheduler cleanup: - Adapt to cpu_need_resched() changes. Avoid lost & duplicate IPIs and ASTs. sched_resched_cpu() and sched_resched_lwp() contain the logic for this. - Changes for LSIDL to make the locking scheme match the intended design. - Reduce lock contention and false sharing further. - Numerous small bugfixes, including some corrections for SCHED_FIFO/RT. - Use setrunnable() in more places, and merge cut & pasted code.
1.44	19-Feb-2016	pooka	branches: 1.44.18; add cpu_lock from freqlabs on irc
1.43	08-Feb-2016	pooka	Allocate struct cpu_info dynamically. Saves quite a lot of BSS in the common case and reduces rump kernel memory requirements by 10% or more in really tiny deployments.
1.42	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.41	25-Aug-2015	pooka	add ncpuonline
1.40	22-Apr-2015	pooka	track cpu_onproc
1.39	07-Jun-2014	rmind	branches: 1.39.4; Make kpreempt_disabled() always return true in RUMP kernels for now. May revisit once RUMP provides better splfoo/splx() handling.
1.38	05-Jun-2014	rmind	librump: add kpreempt_disabled(9) and softint_schedule_cpu(9).
1.37	09-Apr-2014	pooka	implement lwp_create() and a few related interfaces. main raison d'impalerment: the aio driver
1.36	15-Mar-2014	pooka	branches: 1.36.2; Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.35	09-Dec-2013	pooka	Reenable calls to KPREEMPT_EN/DISABLE(). I'm almost certain I commented them out accidentally in rev 1.30. ... not that they do much in rump kernels which are always run-to-completion, but maybe there's some driver debugging value.
1.34	15-May-2013	pooka	branches: 1.34.2; Add RUMPUSER_LWP_CLEAR instead of overloading RUMPUSER_LWP_SET. This simplifies some alternative hypervisor implementations.
1.33	02-May-2013	pooka	Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.32	27-Apr-2013	pooka	Make sure spin mutexes get allocated as spin mutexes (the hypervisor asserts it now).
1.31	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.30	13-Nov-2012	pooka	kill some -Wunused-but-set-variable warnings
1.29	15-Sep-2012	pooka	In the "interlock" case (where the scheduler lock is used as the condvar lock), we need to take the CPU interlock before releasing the CPU. Otherwise other threads can be scheduled before we get the interlock, leading to e.g. missed condvar wakeups. This affected only "locks_up.c" locking (nomen est omen?). Also, remove various __predicts since they don't have a positive performance impact in any setup.
1.28	22-Jun-2012	rmind	branches: 1.28.2; rumpkern: - Add subr_kcpuset.c and subr_pserialize.c modules. - Add kcpuset_{running,attached} for RUMP env.
1.27	31-Oct-2011	yamt	branches: 1.27.2; 1.27.8; comment
1.26	21-Mar-2011	pooka	Update copyright statements. no functional change.
1.25	28-Jan-2011	pooka	Some lwp-walkers expect the correct value for l_stat, so use a flag in l_flag instead of l_stat for the purpose of flagging lwps in a dying proc.
1.24	11-Jan-2011	pooka	branches: 1.24.2; 1.24.4; KASSERT we don't return back to userspace with the kernel lock held.
1.23	01-Dec-2010	pooka	If the pagedaemon cannot free any memory due to not being able to lock any uvm objects, check if lockholders are currently on CPU and yield to try very soon again instead of assuming deadlock. This makes limited-memory kernels perform the same as memory-unlimited kernels (provided there is a reasonable amount of memory available). For example, for large file copy off of ffs where the image is backed on host memory (i.e. no disk i/o, i.e. ideal conditions) the figures are, per rump kernel memory limit: 3000kB: same 1000kB: 10% slower 500kB: 50% slower (per pagedaemon code might still be able to use some tweak, though)
1.22	21-Nov-2010	pooka	Fix situation where we try to configure >MAXCPUS cpus.
1.21	29-Oct-2010	pooka	Attach implicit threads to initproc instead of proc0. This way applications which alter, by purpose or by accident, the uid in an implicit thread are don't affect kernel threads. from discussion with njoly
1.20	07-Sep-2010	pooka	Attach only one CPU for the bootstrap phase.
1.19	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.18	15-Aug-2010	pooka	Increment lwp's context switch counter when it is scheduled onto a CPU. This fixes some heavy-load problems with the pool code when rump kernels essentially lied and caused the pool code not to do a proper backdown from the fastpath when a context switch happened when taking a lock.
1.17	11-Jul-2010	pooka	Assert that l_target_cpu isn't null, just in case we had some memory corruption issues (like passing wrong size to kmem_free ....).
1.16	28-May-2010	pooka	Deal with the "we get a portably arbitrary set of headers on different archs" problem.
1.15	28-May-2010	pooka	Improve the CPU scheduler for a host MP system with multithreaded access. The old scheduler had a global freelist which caused a cache crisis with multiple host threads trying to schedule a virtual CPU simultaneously. The rump scheduler is different from a normal thread scheduler, so it has different requirements. First, we schedule a CPU for a thread (which we get from the host scheduler) instead of scheduling a thread onto a CPU. Second, scheduling points are at every entry/exit to/from the rump kernel, including (but not limited to) syscall entry points and hypercalls. This means scheduling happens a lot more frequently than in a normal kernel. For every lwp, cache the previously used CPU. When scheduling, attempt to reuse the same CPU. If we get it, we can use it directly without any memory barriers or expensive locks. If the CPU is taken, migrate. Use a lock/wait only in the slowpath. Be very wary of walking the entire CPU array because that does not lead to a happy cacher. The migration algorithm could probably benefit from improved heuristics and tuning. Even as such, with the new scheduler an application which has two threads making rlimit syscalls in a tight loop experiences almost 400% speedup. The exact speedup is difficult to pinpoint, though, since the old scheduler caused very jittery results due to cache contention. Also, the rump version is now 70% faster than the counterpart which calls the host kernel.
1.14	18-May-2010	pooka	Make it possible to use the scheduler lock as the rumpuser condvar interlock. This is applicable in cases where the actual interlock is the CPU the currently running thread is scheduled on. Borrowing the scheduler lock as the mutex mandated by pthread_cond_wait() does away with need to have an additional mutex. This both optimizes runtime execution and simplifies code, as the extra lock typically lead to quite some trickeries to avoid the dungeon collapsing due to zaps from the wand of deadlock.
1.13	28-Apr-2010	pooka	Limit virtual CPUs to MAXCPUS for now.
1.12	27-Apr-2010	pooka	Fix multiple virtual cpu support. ... or at least on x86. CPU_INFO_FOREACH() still isn't MI, and I don't want to support 2^n different versions.
1.11	21-Apr-2010	pooka	support kern_resource
1.10	17-Apr-2010	pooka	Move scheduling related routines from emul.c to scheduler.c
1.9	25-Jan-2010	pooka	branches: 1.9.2; 1.9.4; 1.9.6; Set attached cpus as running, otherwise (evil) state-probing code will not execute properly.
1.8	01-Dec-2009	pooka	Almost there for virtual CPU MP support: * support bound kernel threads * bind softint threads to specific virtual cpus + remove now-unnecessary locks from softint code Now, if we only had MI CPU_INFO_FOREACH() .... (hi rmind ;)
1.7	09-Nov-2009	pooka	Hash out soft interrupts to be a little closer to real softints: * split them into levels * allow only one per level to be active at a time * fire softints only when we are unscheduling from a CPU instead of immediately in softint_schedule(). this will later morph into return from interrupt, but that part isn't done yet.
1.6	06-Nov-2009	pooka	In case a temp thread is exiting, borrow lwp0 for the respective kmem_free().
1.5	04-Nov-2009	pooka	Implement yield()/preempt() now that there is a CPU scheduler.
1.4	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.3	15-Oct-2009	pooka	When allocating the temporary lwp we must have an lwp context. So take turns using lwp0 for this purpose, nothing else uses it.
1.2	15-Oct-2009	pooka	Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.1	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.9.6.3	21-Apr-2011	rmind	sync with head
1.9.6.2	05-Mar-2011	rmind	sync with head
1.9.6.1	30-May-2010	rmind	sync with head
1.9.4.4	09-Oct-2010	yamt	sync with head
1.9.4.3	11-Aug-2010	yamt	sync with head.
1.9.4.2	11-Mar-2010	yamt	sync with head
1.9.4.1	25-Jan-2010	yamt	file scheduler.c was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.9.2.4	06-Nov-2010	uebayasi	Sync with HEAD.
1.9.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.9.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.9.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.24.4.1	08-Feb-2011	bouyer	Sync with HEAD
1.24.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.27.8.1	26-Jun-2012	riz	Pull up following revision(s) (requested by rmind in ticket #365): sys/rump/librump/rumpkern/rumpcpu_generic.c: revision 1.4 sys/net/npf/npf_session.c: revision 1.13 sys/net/npf/npf_tableset.c: revision 1.11 sys/net/npf/npf_state_tcp.c: revision 1.7 sys/net/npf/npf_inet.c: revision 1.12 sys/net/npf/npf.h: revision 1.17 sys/net/npf/npf_instr.c: revision 1.11 usr.sbin/npf/npftest/libnpftest/npf_table_test.c: revision 1.2 sys/net/npf/npf_state.c: revision 1.8 sys/net/npf/npf_log.c: revision 1.4 sys/net/npf/npf_alg.c: revision 1.4 sys/rump/librump/rumpkern/Makefile.rumpkern: revision 1.118 sys/net/npf/npf_nat.c: revision 1.13 sys/net/npf/npf.c: revision 1.11 sys/net/npf/npf_sendpkt.c: revision 1.11 sys/net/npf/npf_impl.h: revision 1.16 sys/rump/librump/rumpkern/scheduler.c: revision 1.28 rumpkern: - Add subr_kcpuset.c and subr_pserialize.c modules. - Add kcpuset_{running,attached} for RUMP env. NPF: - Rename some functions for consistency and de-inline them. - Fix few invalid asserts (add regressoin test). - Use pserialize(9) for ALG interface. - Minor fixes, sprinkle many comments.
1.27.2.4	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.27.2.3	16-Jan-2013	yamt	sync with (a bit old) head
1.27.2.2	30-Oct-2012	yamt	sync with head
1.27.2.1	30-Nov-2011	yamt	implement a rump version of kpreempt_disabled
1.28.2.4	03-Dec-2017	jdolecek	update from HEAD
1.28.2.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.28.2.2	23-Jun-2013	tls	resync from head
1.28.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.34.2.1	18-May-2014	rmind	sync with head
1.36.2.1	10-Aug-2014	tls	Rebase.
1.39.4.3	19-Mar-2016	skrll	Sync with HEAD
1.39.4.2	22-Sep-2015	skrll	Sync with HEAD
1.39.4.1	06-Jun-2015	skrll	Sync with HEAD
1.44.18.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.48.2.2	29-Feb-2020	ad	Sync with head.
1.48.2.1	17-Jan-2020	ad	Sync with head.
1.51.4.1	14-Dec-2020	thorpej	Sync w/ HEAD.
1.1	22-Apr-2023	riastradh	secmodel_extensions: Split vfs part into separate .c file. This way we can provide weak rumpkern stubs that don't require rumpvfs for things that are relevant to vfs, but if you do link rumpvfs then you get the same logic in secmodel extensions.
1.17	23-May-2020	ad	Move proc_lock into the data segment. It was dynamically allocated because at the time we had mutex_obj_alloc() but not __cacheline_aligned.
1.16	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.15	18-Apr-2015	pooka	Give remote clients struct pmap storage. Although the pmap is unused, that way we can sure that the pmap macro framework doesn't access all the wrong places.
1.14	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.13	20-Feb-2014	pooka	branches: 1.13.6; Remove the "host" signal model. I'm not sure it ever made any sense. I'm also quite sure nobody ever really wanted to use it. Change the "raise" sigmodel to include the rump kernel PID in the call to rumpuser_kill(). The purpose is to provide some hint for non-POSIX platforms which don't sport signals and multiplex many clients in a single address space. While this is technically an ABI change, see above. Also, since rumpuser_kill() was not documented, I'll just claim I'm fixing a bug in the implementation (and will be sure to document the interface correctly very soon).
1.12	22-Nov-2013	christos	we now use TAILQ
1.11	30-Apr-2013	pooka	branches: 1.11.4; Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.10	28-May-2011	tron	branches: 1.10.4; 1.10.14; Fix rump build which got broken by the fix for PR kern/44986.
1.9	18-May-2011	christos	add a hacky version of sigsuspendsetup() to satisfy link requirements.
1.8	20-Feb-2011	pooka	Change the default sigmodel to "raise", it makes more sense than causing a panic.
1.7	14-Jan-2011	pooka	branches: 1.7.2; 1.7.4; Support SIGMODEL_RAISE for non-local clients.
1.6	08-Jan-2011	pooka	SIGPIPE is generated internally by the kernel, so include it in the list of "no panic" sigs.
1.5	03-Jan-2011	pooka	kqueue signal filters are not supported, so be explicit about it.
1.4	15-Nov-2010	pooka	Add a new signal model RUMP_SIGMODEL_RECORD which records all signals which are posted to a process.
1.3	10-Jun-2010	pooka	branches: 1.3.2; Use kern_proc.c instead of a collection of stubs. But what we really wanted from this commit was the support for proc_specificdata. TODO: make creating a new process actually use kern_proc and maybe even add an interface which starts a process with "any pid you don't like"
1.2	22-Apr-2010	pooka	branches: 1.2.2; 1.2.4; more signal stuff to group. no functional change.
1.1	21-Apr-2010	pooka	Move all signal-related from emul.c to signals.c. Additionally, define a few alternate signal models for the rump kernel, including ones where signals are ignored or sent to host processes.
1.2.4.5	31-May-2011	rmind	sync with head
1.2.4.4	05-Mar-2011	rmind	sync with head
1.2.4.3	03-Jul-2010	rmind	sync with head
1.2.4.2	30-May-2010	rmind	sync with head
1.2.4.1	22-Apr-2010	rmind	file signals.c was added on branch rmind-uvmplock on 2010-05-30 05:18:06 +0000
1.2.2.3	17-Aug-2010	uebayasi	Sync with HEAD.
1.2.2.2	30-Apr-2010	uebayasi	Sync with HEAD.
1.2.2.1	22-Apr-2010	uebayasi	file signals.c was added on branch uebayasi-xip on 2010-04-30 14:44:30 +0000
1.3.2.2	11-Aug-2010	yamt	sync with head.
1.3.2.1	10-Jun-2010	yamt	file signals.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:07 +0000
1.7.4.1	05-Mar-2011	bouyer	Sync with HEAD
1.7.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.10.14.3	03-Dec-2017	jdolecek	update from HEAD
1.10.14.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.10.14.1	23-Jun-2013	tls	resync from head
1.10.4.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.11.4.1	18-May-2014	rmind	sync with head
1.13.6.3	19-Mar-2016	skrll	Sync with HEAD
1.13.6.2	06-Jun-2015	skrll	Sync with HEAD
1.13.6.1	06-Apr-2015	skrll	Sync with HEAD
1.28	13-Oct-2023	ad	Rump: sleepq_remove(): don't unlock the sleepq. Spotted by hannken@.
1.27	08-Oct-2023	ad	Ensure that an LWP that has taken a legitimate wakeup never produces an error code from sleepq_block(). Then, it's possible to make cv_signal() work as expected and only ever wake a singular LWP.
1.26	05-Oct-2023	ad	Resolve !MULTIPROCESSOR build problem with the nasty kernel lock macros.
1.25	04-Oct-2023	ad	Eliminate l->l_biglocks. Originally I think it had a use but these days a local variable will do.
1.24	23-Sep-2023	ad	- Simplify how priority boost for blocking in kernel is handled. Rather than setting it up at each site where we block, make it a property of syncobj_t. Then, do not hang onto the priority boost until userret(), drop it as soon as the LWP is out of the run queue and onto a CPU. Holding onto it longer is of questionable benefit. - This allows two members of lwp_t to be deleted, and mi_userret() to be simplified a lot (next step: trim it down to a single conditional). - While here, constify syncobj_t and de-inline a bunch of small functions like lwp_lock() which turn out not to be small after all (I don't know why, but atomic_*_relaxed() seem to provoke a compiler shitfit above and beyond what volatile does).
1.23	30-Jun-2022	knakahara	Fix rump build failure after sleepq.h:r1.35.
1.22	09-Apr-2022	riastradh	rumpkern/sleepq: Convert membar_exit/store to atomic_store_release.
1.21	01-Nov-2020	christos	PR/55664: Ruslan Nikolaev: Fix: 1. A race condition (bug) in sys/rump/librump/rumpkern/intr.c since rumpuser_cv_signal() is called without holding a mutex 2. sleepq is implemented using a single (global) conditional variable; that should be done per each sleepq separately
1.20	25-Apr-2020	bouyer	branches: 1.20.2; Merge the bouyer-xenpvh branch, bringing in Xen PV drivers support under HVM guests in GENERIC. Xen support can be disabled at runtime with boot -c disable hypervisor
1.19	19-Apr-2020	ad	good grief..
1.18	26-Mar-2020	ad	branches: 1.18.2; sleepq_t is now a LIST. Forgot to commit earlier.
1.17	26-Jan-2016	pooka	branches: 1.17.18; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.16	24-Apr-2014	pooka	branches: 1.16.4; Make sleepq_wake() type void. The return value hasn't been used in almost 6 years. Even if it were, returning an arbitrary lwp is a bit of a wonky interface and can really work only when expected == 1.
1.15	24-Apr-2014	pooka	in sleepq_wake(), honor the "expected" parameter
1.14	10-Mar-2013	pooka	branches: 1.14.6; 1.14.10; Make RUN_ONCE actually run only once. Also, remove a "slightly" outdated comment.
1.13	28-Jan-2011	pooka	branches: 1.13.4; 1.13.14; these days make sure we have an lwp lock (for lwp walker smiths)
1.12	27-Jan-2011	pooka	Fill in l_wmesg since some proc-walkers assume it.
1.11	12-Jan-2011	pooka	branches: 1.11.2; 1.11.4; When the client and the rump kernel are the same host process, all threads blocking in the kernel automatically exit when the process exists. However, for the sysproxy case this does not hold. Typically it's ~harmless, but e.g. in the case of socket binding following by poll it gets annoying. Introduce sysproxy procexit, which wakes up all threads blocking on a condition when a process's communication socket is closed. The code is a little different from the regular kernel simply because in a rump kernel l_mutex is not available at all times (this is because scheduling happens on every kernel entry and exit, and that path must be kept lockless for any reasonable performance). Instead, use gating which makes sure all threads are either out of the cv code or suspended in a well-known state. Then, wake up the threads and tell them to get the hell out of our galaxy.
1.10	18-Dec-2010	skrll	Pull in sys/atomic.h so that hp700 can build - needed for membar_exit.
1.9	18-Dec-2010	rmind	- Fix a few possible locking issues in execve1() and exit1(). Add a note that scheduler locks are special in this regard - adaptive locks cannot be in the path due to turnstiles. Randomly spotted/reported by uebayasi@. - Remove unused lwp_relock() and replace lwp_lock_retry() by simplifying lwp_lock() and sleepq_enter() a little. - Give alllwp its own cache-line and mark lwp_cache pointer as read-mostly. OK ad@
1.8	23-Jul-2010	pooka	If a thread wake up spuriously, re-set l_mutex to make sure it's still at the original value and not the schedstate one. This makes select not miss wakeups in cases where there was a lot of selecting going on (which is not all that common in a rump kernel).
1.7	22-Jul-2010	pooka	Reset l_mutex when waking up a thread. select uses it to determine if a thread is still selecting, and would get a KASSERT panic if the thread had been woken up but not run yet when selnotify() was called.
1.6	17-Nov-2009	pooka	branches: 1.6.2; 1.6.4; init global cv only once
1.5	21-Oct-2009	rmind	Sync rump with kernel changes.
1.4	16-Oct-2009	pooka	In case of timeout, remember to remove ourselves from the sleep staleq.
1.3	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.2	18-Dec-2008	pooka	branches: 1.2.2; 1.2.6; __KERNEL_RCSID
1.1	10-Oct-2008	pooka	branches: 1.1.2; 1.1.4; 1.1.6; Support callouts and call callout_hardclock() from the timer interrupt thread. The sleepq implementation required for callouts is horrible, kludged only for callouts, and generally unacceptable. It needs revisiting, but I'm not sure yet should rump or kern_timeout be improved. It's almost untested as of now, but committing this will give me some maneuvering space while letting application compile.
1.1.6.1	19-Jan-2009	skrll	Sync with HEAD.
1.1.4.2	19-Oct-2008	haad	Sync with HEAD.
1.1.4.1	10-Oct-2008	haad	file sleepq.c was added on branch haad-dm on 2008-10-19 22:18:07 +0000
1.1.2.2	10-Oct-2008	skrll	Sync with HEAD.
1.1.2.1	10-Oct-2008	skrll	file sleepq.c was added on branch wrstuden-revivesa on 2008-10-10 22:36:16 +0000
1.2.6.4	11-Aug-2010	yamt	sync with head.
1.2.6.3	11-Mar-2010	yamt	sync with head
1.2.6.2	04-May-2009	yamt	sync with head.
1.2.6.1	18-Dec-2008	yamt	file sleepq.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.2.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.2.2.1	18-Dec-2008	mjf	file sleepq.c was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.6.4.1	05-Mar-2011	rmind	sync with head
1.6.2.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.11.4.1	08-Feb-2011	bouyer	Sync with HEAD
1.11.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.13.14.3	03-Dec-2017	jdolecek	update from HEAD
1.13.14.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.13.14.1	23-Jun-2013	tls	resync from head
1.13.4.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.14.10.1	10-Aug-2014	tls	Rebase.
1.14.6.1	18-May-2014	rmind	sync with head
1.16.4.1	19-Mar-2016	skrll	Sync with HEAD
1.17.18.2	21-Apr-2020	martin	Sync with HEAD
1.17.18.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.18.2.1	20-Apr-2020	bouyer	Sync with HEAD
1.20.2.1	14-Dec-2020	thorpej	Sync w/ HEAD.
1.30	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.29	18-Nov-2008	pooka	Pass biodone() to rumpuser as a callback instead of hardcoding it. Also, explicitly init rumpuser async io thread.
1.28	16-Nov-2008	pooka	<sys/buf.h> police
1.27	11-Sep-2008	pooka	branches: 1.27.2; * fsync after !B_ASYNC write * replace some b_flags magic with BUF_ISREAD/WRITE()
1.26	09-Sep-2008	tron	Fix build problem with puffs enabled caused by the fix for PR kern/39493. Problem noted by Thomas Klausner, patch provided by Juan RP.
1.25	12-Aug-2008	pooka	Make it possible to control starting of threads per env variable instead of only at compile-time.
1.24	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.23	21-Jul-2008	pooka	Call mountpoint VFS_FSYNC() from specfs fsync. Makes rump kern/38057-happy.
1.22	20-Jul-2008	pooka	assert -> KASSERT
1.21	18-Jul-2008	pooka	Don't biohazardwait B_ASYNC buffers.
1.20	01-Jul-2008	pooka	branches: 1.20.2; Fixes to build rump utilities as host binaries on Linux by removing sys namespace pollution which has crept in. Submitted in private mail by takemura, domain ca2.so-net.ne.jp
1.19	27-Jan-2008	pooka	branches: 1.19.6; 1.19.10; 1.19.12; 1.19.14; Use vfs_subr.c from sys/kern. This brings differences in the vnode life cycle between rump and a real kernel to a minimum.
1.18	22-Jan-2008	pooka	Until debugging threaded programs in NetBSD is fixed, supply the cpp option RUMP_WITHOUT_THREADS as a workaround. If defined, it makes rump itself operate single-threaded and prevents kthread_create() from working.
1.17	21-Jan-2008	pooka	Implement dummy bmap which just does 1:1 translation.
1.16	03-Jan-2008	pooka	Theoretically this is supposed to be interchangeable with real kernel code. Use kmem_alloc/free instead of some wily homerolled rump interfaces for memory allocation.
1.15	02-Jan-2008	pooka	Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.14	02-Jan-2008	pooka	fix vmlocking2 fallout: * I heard a wild rumor that vp_interlock is a mutex these days (hi ad!) * init new locks (hi ad) * observe that with simple_locks only deadlocks would be caught while releasing unlocked locks would go unnoticed. make locking work (hi pooka)
1.13	07-Nov-2007	pooka	branches: 1.13.6; Execute I/O in a separate thread for async I/O where previously everything was written/read in caller context. Also, make the "kernel" lock recursive. It works better that way ...
1.12	06-Nov-2007	pooka	Sprinkle some more locking, especially to the vm. Due to some additional fixes, it's now possible to run file systems with spinlocks actually enabled. The genfs_putpages() locking is still working only due to greater powers, but I'll eventually get around to fixing it.
1.11	04-Nov-2007	pooka	branches: 1.11.2; Make the strategy routine get the results through biowait() and the "disk driver" (rumpuser) call biodone() to indicate the completion of I/O. Support for B_ASYNC is coming at some point, but I need more locking support in the emulated vm for that.
1.10	31-Oct-2007	pooka	branches: 1.10.2; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.9	24-Sep-2007	pooka	branches: 1.9.2; print 0x before hex, print proper types
1.8	20-Sep-2007	pooka	branches: 1.8.2; fsync() device fd if doing a non-B_ASYNC write. This makes the file system safe, but less performant as the kernel, as it syncs all outstanding dirty buffers. However, we don't have much choice in userspace currently.
1.7	10-Sep-2007	pooka	Provide errno from rumpuser_{gettimeofday,close}() to be consistent.
1.6	20-Aug-2007	pooka	branches: 1.6.2; 1.6.4; 1.6.6; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.5	14-Aug-2007	pooka	branches: 1.5.2; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.4	14-Aug-2007	pooka	Add some barely staggering code to get more disklabel support.
1.3	13-Aug-2007	pooka	Use supermarket variety vfs_vnops.c instead of homecooked routines (that's actually a good thing here).
1.2	09-Aug-2007	pooka	* fix symlink * actually call a couple of VOPs
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file specfs.c was added on branch matt-mips64 on 2007-08-05 22:28:10 +0000
1.5.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.5.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.5.2.1	14-Aug-2007	skrll	file specfs.c was added on branch nick-csl-alignment on 2007-08-15 13:50:41 +0000
1.6.6.6	04-Feb-2008	yamt	sync with head.
1.6.6.5	21-Jan-2008	yamt	sync with head
1.6.6.4	15-Nov-2007	yamt	sync with head.
1.6.6.3	27-Oct-2007	yamt	sync with head.
1.6.6.2	03-Sep-2007	yamt	sync with head.
1.6.6.1	20-Aug-2007	yamt	file specfs.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:35 +0000
1.6.4.4	23-Mar-2008	matt	sync with HEAD
1.6.4.3	09-Jan-2008	matt	sync with HEAD
1.6.4.2	08-Nov-2007	matt	sync with -HEAD
1.6.4.1	06-Nov-2007	matt	sync with HEAD
1.6.2.3	09-Oct-2007	ad	Sync with head.
1.6.2.2	20-Aug-2007	ad	Sync with HEAD.
1.6.2.1	20-Aug-2007	ad	file specfs.c was added on branch vmlocking on 2007-08-20 22:07:30 +0000
1.8.2.1	06-Oct-2007	yamt	sync with head.
1.9.2.1	13-Nov-2007	bouyer	Sync with HEAD
1.10.2.6	11-Nov-2007	joerg	Sync with HEAD.
1.10.2.5	06-Nov-2007	joerg	Sync with HEAD.
1.10.2.4	04-Nov-2007	jmcneill	Sync with HEAD.
1.10.2.3	02-Nov-2007	joerg	Remove the rest of the unintentional diff in sys/rump.
1.10.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.10.2.1	31-Oct-2007	joerg	file specfs.c was added on branch jmcneill-pm on 2007-10-31 23:14:18 +0000
1.11.2.2	18-Feb-2008	mjf	Sync with HEAD.
1.11.2.1	19-Nov-2007	mjf	Sync with HEAD.
1.13.6.3	23-Jan-2008	bouyer	Sync with HEAD.
1.13.6.2	08-Jan-2008	bouyer	Sync with HEAD
1.13.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.19.14.3	31-Jul-2008	simonb	Sync with head.
1.19.14.2	21-Jul-2008	simonb	Sync with head.
1.19.14.1	03-Jul-2008	simonb	Sync with head.
1.19.12.2	24-Sep-2008	wrstuden	Merge in changes between wrstuden-revivesa-base-2 and wrstuden-revivesa-base-3.
1.19.12.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.19.10.1	04-May-2009	yamt	sync with head.
1.19.6.3	17-Jan-2009	mjf	Sync with HEAD.
1.19.6.2	28-Sep-2008	mjf	Sync with HEAD.
1.19.6.1	02-Jul-2008	mjf	Sync with HEAD.
1.20.2.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.20.2.1	19-Oct-2008	haad	Sync with HEAD.
1.27.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.2	07-Jan-2015	pooka	Move sysproxy support into a separate component, rumpkern_sysproxy, instead of it being always provided by the rump kernel base. This move accomplishes two things: 1) it is no longer necessary to provide sysproxy hypercall stubs for platforms which do not want to use sysproxy 2) it is easier to reason about the security aspects, since configurations not linking the sysproxy component simply do not support remote system calls discussed on rumpkernel-users
1.1	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.10	27-Oct-2010	pooka	Retire the old sysproxy nonsense (as part of doing it slightly better). Introduce rump_pub_syscall() as the generic interface for making system calls with already marshalled arguments. So it's kinda like syscall(2), except it also remembered to breathe instead of having to figure out how to deal with 64bit values.
1.9	01-Sep-2010	pooka	use curlwp
1.8	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.7	11-Aug-2010	pgoyette	Keep condvar wmesg within 8 char limit
1.6	01-Mar-2010	pooka	branches: 1.6.2; Add types for LWP_CREATE and LWP_EXIT rpc calls. Currently unimplemented.
1.5	15-Oct-2009	pooka	branches: 1.5.2; Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.4	14-Oct-2009	pooka	"rumppriv" goes back to "rump" per internal interface naming change.
1.3	14-Oct-2009	pooka	Adjust rump sources for external/internal interfaces. No functional change.
1.2	30-Apr-2009	skrll	branches: 1.2.2; 1.2.4; +#include <sys/atomic.h>
1.1	29-Apr-2009	pooka	Add proof-of-concept code for enabling system calls to rump virtual kernels running in other processes on the same machine or on an entirely different host. I wrote this a while ago and am now committing it mainly to avoid losing it. It works, but could do with a little tuning here and there. What this will hopefully eventually buy us is the ability to use standard userland tools to configure rump kernels, e.g. ifconfig(8) and route(8) could be used to configure the networking stack provided by a rump kernel. Also some distributed OS implications may apply. fun fact: a system call which just does copyin/copyout takes >1000x longer when made over the LAN as compared to when made on the same machine.
1.2.4.2	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.2.4.1	30-Apr-2009	jym	file sysproxy_socket.c was added on branch jym-xensuspend on 2009-05-13 17:22:58 +0000
1.2.2.4	09-Oct-2010	yamt	sync with head
1.2.2.3	11-Mar-2010	yamt	sync with head
1.2.2.2	04-May-2009	yamt	sync with head.
1.2.2.1	30-Apr-2009	yamt	file sysproxy_socket.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.5.2.4	06-Nov-2010	uebayasi	Sync with HEAD.
1.5.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.5.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.5.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.6.2.1	05-Mar-2011	rmind	sync with head
1.28	04-Oct-2023	ad	rump now needs lwp_need_userret()
1.27	01-Aug-2020	riastradh	Define kthread_fpu_enter/exit for rump. XXX Not 100% sure that it's safe to touch curlwp->l_flag in this context, but this change will make progress, at least.
1.26	21-Apr-2017	kamil	Fix build of rump after change in lwp_create's signature
1.25	21-Apr-2017	christos	- Propagate the signal mask from the ucontext_t to the newly created thread as specified by _lwp_create(2) - Reset the signal stack for threads created with _lwp_create(2)
1.24	26-Jan-2016	pooka	branches: 1.24.2; 1.24.4; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.23	09-Apr-2014	pooka	branches: 1.23.4; implement lwp_create() and a few related interfaces. main raison d'impalerment: the aio driver
1.22	15-Mar-2014	pooka	branches: 1.22.2; Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.21	02-May-2013	pooka	branches: 1.21.4; Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.20	30-Apr-2013	pooka	In kthread_create(), pass the priority and cpu index down to the rump kernel hypervisor (though the current implementation doesn't take advantage of them).
1.19	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.18	10-Mar-2013	pooka	Don't allow kernel threads to run before all CPUs have been initialized to avoid them getting scheduled on non-initialized CPUs.
1.17	04-Nov-2012	pooka	Add vdrain to the list of kernel threads.
1.16	04-Nov-2012	pooka	Use a table to check for kernel threads.
1.15	07-Aug-2011	rmind	branches: 1.15.2; 1.15.12; Rename slightly misleading KTHREAD_JOINABLE to KTHREAD_MUSTJOIN.
1.14	17-Jul-2011	joerg	Retire varargs.h support. Move machine/stdarg.h logic into MI sys/stdarg.h and expect compiler to provide proper builtins, defaulting to the GCC interface. lint still has a special fallback. Reduce abuse of _BSD_VA_LIST_ by defining __va_list by default and derive va_list as required by standards.
1.13	29-Oct-2010	pooka	Attach implicit threads to initproc instead of proc0. This way applications which alter, by purpose or by accident, the uid in an implicit thread are don't affect kernel threads. from discussion with njoly
1.12	01-Sep-2010	pooka	Implement rump_lwproc: the new lwp/proc management routines for rump. These move the management of the pid/lwpid space from the application into the kernel, make code more robust, and make it possible to attach multiple lwp's to non-proc0 processes.
1.11	03-Jun-2010	pooka	Don't use rumpuser_malloc() directly.
1.10	31-May-2010	pooka	Support KTHREAD_JOINABLE/kthread_join(). Also fixes earlier bug where all pthreads were created non-detached.
1.9	28-May-2010	pooka	Improve the CPU scheduler for a host MP system with multithreaded access. The old scheduler had a global freelist which caused a cache crisis with multiple host threads trying to schedule a virtual CPU simultaneously. The rump scheduler is different from a normal thread scheduler, so it has different requirements. First, we schedule a CPU for a thread (which we get from the host scheduler) instead of scheduling a thread onto a CPU. Second, scheduling points are at every entry/exit to/from the rump kernel, including (but not limited to) syscall entry points and hypercalls. This means scheduling happens a lot more frequently than in a normal kernel. For every lwp, cache the previously used CPU. When scheduling, attempt to reuse the same CPU. If we get it, we can use it directly without any memory barriers or expensive locks. If the CPU is taken, migrate. Use a lock/wait only in the slowpath. Be very wary of walking the entire CPU array because that does not lead to a happy cacher. The migration algorithm could probably benefit from improved heuristics and tuning. Even as such, with the new scheduler an application which has two threads making rlimit syscalls in a tight loop experiences almost 400% speedup. The exact speedup is difficult to pinpoint, though, since the old scheduler caused very jittery results due to cache contention. Also, the rump version is now 70% faster than the counterpart which calls the host kernel.
1.8	09-Feb-2010	pooka	branches: 1.8.2; 1.8.4; Store l_name for kernel threads.
1.7	27-Jan-2010	pooka	branches: 1.7.2; ignore pmf threads if RUMP_THREADS == 0
1.6	05-Dec-2009	pooka	KERNEL_UNLOCK_LAST in non-mpsafe kthread exit.
1.5	03-Dec-2009	pooka	Soft-fail xcall thread creation to make RUMP_THREADS=0 work again.
1.4	01-Dec-2009	pooka	Almost there for virtual CPU MP support: * support bound kernel threads * bind softint threads to specific virtual cpus + remove now-unnecessary locks from softint code Now, if we only had MI CPU_INFO_FOREACH() .... (hi rmind ;)
1.3	09-Nov-2009	pooka	adjust comment for previous
1.2	09-Nov-2009	pooka	set LP_INTR for KTHREAD_INTR
1.1	04-Nov-2009	pooka	Give the kthread->pthread interface emulation its own module.
1.7.2.4	06-Nov-2010	uebayasi	Sync with HEAD.
1.7.2.3	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.7.2.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.7.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.8.4.3	05-Mar-2011	rmind	sync with head
1.8.4.2	03-Jul-2010	rmind	sync with head
1.8.4.1	30-May-2010	rmind	sync with head
1.8.2.4	09-Oct-2010	yamt	sync with head
1.8.2.3	11-Aug-2010	yamt	sync with head.
1.8.2.2	11-Mar-2010	yamt	sync with head
1.8.2.1	09-Feb-2010	yamt	file threads.c was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.15.12.4	03-Dec-2017	jdolecek	update from HEAD
1.15.12.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.15.12.2	23-Jun-2013	tls	resync from head
1.15.12.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.15.2.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.15.2.1	16-Jan-2013	yamt	sync with (a bit old) head
1.21.4.1	18-May-2014	rmind	sync with head
1.22.2.1	10-Aug-2014	tls	Rebase.
1.23.4.2	28-Aug-2017	skrll	Sync with HEAD
1.23.4.1	19-Mar-2016	skrll	Sync with HEAD
1.24.4.2	23-Apr-2017	bouyer	Sync with HEAD
1.24.4.1	21-Apr-2017	bouyer	Sync with HEAD
1.24.2.1	26-Apr-2017	pgoyette	Sync with HEAD
1.40	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.39	29-Jul-2008	pooka	branches: 1.39.2; Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.38	12-Mar-2008	pooka	branches: 1.38.4; 1.38.6; 1.38.8; 1.38.10; Support chdir. This is useful for example when testing and not wanting to stress namei() so much as test individual ops. XXX: it should be implemented per calling thread, not per fs.
1.37	12-Mar-2008	pooka	Support multiple file systems within one process with ukfs by using a "chroot" for each file system.
1.36	11-Mar-2008	pooka	Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.35	30-Jan-2008	ad	branches: 1.35.2; 1.35.6; Replace struct lock on vnodes with a simpler lock object built on krwlock_t. This is a step towards removing lockmgr and simplifying vnode locking. Discussed on tech-kern.
1.34	27-Jan-2008	pooka	Use vfs_subr.c from sys/kern. This brings differences in the vnode life cycle between rump and a real kernel to a minimum.
1.33	25-Jan-2008	pooka	Nuke local copy of getcwd_common(), we compile in the real thing now.
1.32	24-Jan-2008	pooka	Use namei() etc. from kernel sources instead of a reimplementation. To accommodate, give the rootvnode its own vnode op vector with a simple lookup operation. This is used for looking up the file system's device vnode instead of doing that directly in a homesmoked namei().
1.31	24-Jan-2008	pooka	Make work again by repairing spec_node_init() and not being afraid to use it.
1.30	24-Jan-2008	ad	specfs changes for PR kern/37717 (raidclose() is no longer called on shutdown). There are still problems with device access and a PR will be filed. - Kill checkalias(). Allow multiple vnodes to reference a single device. - Don't play dangerous tricks with block vnodes to ensure that only one vnode can describe a block device. Instead, prohibit concurrent opens of block devices. As a bonus remove the unreliable code that prevents multiple file system mounts on the same device. It's no longer needed. - Track opens by vnode and by device. Issue cdev_close() when the last open goes away, instead of abusing vnode::v_usecount to tell if the device is open.
1.29	17-Jan-2008	ad	Add a dummy vrevoke().
1.28	03-Jan-2008	pooka	Theoretically this is supposed to be interchangeable with real kernel code. Use kmem_alloc/free instead of some wily homerolled rump interfaces for memory allocation.
1.27	03-Jan-2008	pooka	use UVM_OBJ_INIT/DESTROY()
1.26	03-Jan-2008	pooka	valloc -> vnalloc, vfree -> vnfree Avoids collision with userland valloc(3). no functional change ad ok
1.25	02-Jan-2008	pooka	Add the ability to run puffs in userspace. This means that puffs can now be developed in userspace using puffs for development (I hate emulators, they are annoyingly clumsy). To e.g. mount psshfs using puffs-on-puffs, run fs/bin/syspuffs/syspuffs with the regular mount_psshfs command line as an argument: golem> ./syspuffs /usr/sbin/mount_psshfs ftp.netbsd.org:/pub /puffs This will make the mount appear as usual, with the exception that the requests will be passed through puffs both in the kernel and userspace: ftp.netbsd.org:/pub on /puffs type puffs\|p2k\|puffs\|psshfs
1.24	02-Jan-2008	pooka	fix vmlocking2 fallout: * I heard a wild rumor that vp_interlock is a mutex these days (hi ad!) * init new locks (hi ad) * observe that with simple_locks only deadlocks would be caught while releasing unlocked locks would go unnoticed. make locking work (hi pooka)
1.23	02-Jan-2008	ad	Provide valloc(), fix vfree().
1.22	02-Jan-2008	ad	Merge vmlocking2 to head.
1.21	26-Nov-2007	pooka	branches: 1.21.2; 1.21.6; Remove the "struct lwp *" argument from all VFS and VOP interfaces. The general trend is to remove it from all kernel interfaces and this is a start. In case the calling lwp is desired, curlwp should be used. quick consensus on tech-kern
1.20	14-Nov-2007	pooka	Shield against returning EJUSTRETURN from relookup()
1.19	06-Nov-2007	pooka	initialize vnode interlock when creating one
1.18	06-Nov-2007	pooka	Sprinkle some more locking, especially to the vm. Due to some additional fixes, it's now possible to run file systems with spinlocks actually enabled. The genfs_putpages() locking is still working only due to greater powers, but I'll eventually get around to fixing it.
1.17	27-Oct-2007	pooka	branches: 1.17.2; 1.17.4; Prevent recursion in INACTIVE -> vrecycle -> inactive -> ...
1.16	26-Oct-2007	pooka	more carefully emulate vget() and vrecycle()
1.15	17-Oct-2007	pooka	branches: 1.15.2; Compile most genfs routines directly out of the kernel sources. Move special I/O routines to genfs_io.c to mirror kernel naming.
1.14	10-Oct-2007	ad	Merge from vmlocking: - Split vnode::v_flag into three fields, depending on field locking. - simple_lock -> kmutex in a few places. - Fix some simple locking problems.
1.13	08-Sep-2007	pooka	branches: 1.13.2; honor LOCKLEAF in namei
1.12	01-Sep-2007	pooka	branches: 1.12.2; vinvalbuf in vrecycle
1.11	20-Aug-2007	pooka	branches: 1.11.2; 1.11.4; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.10	14-Aug-2007	pooka	branches: 1.10.2; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.9	13-Aug-2007	pooka	Use supermarket variety vfs_vnops.c instead of homecooked routines (that's actually a good thing here).
1.8	12-Aug-2007	pooka	track lockmgr lock status. makes lfs work again
1.7	09-Aug-2007	pooka	Play catchup with ufs/ffs changes: compile subr_specificdata.c and emulate kmem_foo() to support the prior.
1.6	09-Aug-2007	pooka	whoops, committed old signature of vrele2()
1.5	09-Aug-2007	pooka	Add some stubs for lfs.
1.4	08-Aug-2007	pooka	Provide rump_getvninfo() and use that in libp2k_lookup() to avoid an extra getattr for stuff the file system already cached in the vnode.
1.3	07-Aug-2007	pooka	flush pages in vflushbuf()
1.2	06-Aug-2007	pooka	branches: 1.2.2; Allow to de/register pathnames which should be faked as block devices instead of faking all non-blks as blks in namei().
1.1	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.2.2.2	06-Aug-2007	pooka	Allow to de/register pathnames which should be faked as block devices instead of faking all non-blks as blks in namei().
1.2.2.1	06-Aug-2007	pooka	file vfs.c was added on branch matt-mips64 on 2007-08-06 22:20:58 +0000
1.10.2.4	10-Sep-2007	skrll	Sync with HEAD.
1.10.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.10.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.10.2.1	14-Aug-2007	skrll	file vfs.c was added on branch nick-csl-alignment on 2007-08-15 13:50:42 +0000
1.11.4.4	23-Mar-2008	matt	sync with HEAD
1.11.4.3	09-Jan-2008	matt	sync with HEAD
1.11.4.2	08-Nov-2007	matt	sync with -HEAD
1.11.4.1	06-Nov-2007	matt	sync with HEAD
1.11.2.4	23-Oct-2007	ad	Sync with head.
1.11.2.3	09-Oct-2007	ad	Sync with head.
1.11.2.2	20-Aug-2007	ad	Sync with HEAD.
1.11.2.1	20-Aug-2007	ad	file vfs.c was added on branch vmlocking on 2007-08-20 22:07:30 +0000
1.12.2.8	17-Mar-2008	yamt	sync with head.
1.12.2.7	04-Feb-2008	yamt	sync with head.
1.12.2.6	21-Jan-2008	yamt	sync with head
1.12.2.5	07-Dec-2007	yamt	sync with head
1.12.2.4	15-Nov-2007	yamt	sync with head.
1.12.2.3	27-Oct-2007	yamt	sync with head.
1.12.2.2	03-Sep-2007	yamt	sync with head.
1.12.2.1	01-Sep-2007	yamt	file vfs.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:36 +0000
1.13.2.2	18-Oct-2007	yamt	sync with head.
1.13.2.1	14-Oct-2007	yamt	sync with head.
1.15.2.2	18-Nov-2007	bouyer	Sync with HEAD
1.15.2.1	13-Nov-2007	bouyer	Sync with HEAD
1.17.4.3	18-Feb-2008	mjf	Sync with HEAD.
1.17.4.2	08-Dec-2007	mjf	Sync with HEAD.
1.17.4.1	19-Nov-2007	mjf	Sync with HEAD.
1.17.2.4	27-Nov-2007	joerg	Sync with HEAD. amd64 Xen support needs testing.
1.17.2.3	14-Nov-2007	joerg	Sync with HEAD.
1.17.2.2	06-Nov-2007	joerg	Sync with HEAD.
1.17.2.1	27-Oct-2007	joerg	file vfs.c was added on branch jmcneill-pm on 2007-11-06 19:25:37 +0000
1.21.6.3	19-Jan-2008	bouyer	Sync with HEAD
1.21.6.2	08-Jan-2008	bouyer	Sync with HEAD
1.21.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.21.2.3	28-Dec-2007	ad	Make rump build.
1.21.2.2	08-Dec-2007	ad	Fix merge error.
1.21.2.1	04-Dec-2007	ad	Pull the vmlocking changes into a new branch.
1.35.6.3	17-Jan-2009	mjf	Sync with HEAD.
1.35.6.2	28-Sep-2008	mjf	Sync with HEAD.
1.35.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.35.2.1	24-Mar-2008	keiichi	sync with head.
1.38.10.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.38.10.1	19-Oct-2008	haad	Sync with HEAD.
1.38.8.1	31-Jul-2008	simonb	Sync with head.
1.38.6.1	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.38.4.1	04-May-2009	yamt	sync with head.
1.39.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.8	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.7	30-Sep-2008	pooka	branches: 1.7.2; Make spec_fsync() a do-nothing instead of a do-panic. Some file systems have it directly in the specfs op vector.
1.6	17-Oct-2007	pooka	branches: 1.6.4; 1.6.20; 1.6.24; 1.6.26; 1.6.30; Compile most genfs routines directly out of the kernel sources. Move special I/O routines to genfs_io.c to mirror kernel naming.
1.5	13-Aug-2007	pooka	branches: 1.5.2; 1.5.4; 1.5.6; 1.5.8; 1.5.10; Use supermarket variety vfs_vnops.c instead of homecooked routines (that's actually a good thing here).
1.4	09-Aug-2007	pooka	* fix symlink * actually call a couple of VOPs
1.3	09-Aug-2007	pooka	fool some KASSERTs
1.2	08-Aug-2007	pooka	Make genfs_islocked return always 1 instead of 0. But these should really get tracked ...
1.1	05-Aug-2007	pooka	branches: 1.1.2; Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.2	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.1.2.1	05-Aug-2007	pooka	file vfsops_stub.c was added on branch matt-mips64 on 2007-08-05 22:28:11 +0000
1.5.10.1	18-Oct-2007	yamt	sync with head.
1.5.8.3	27-Oct-2007	yamt	sync with head.
1.5.8.2	03-Sep-2007	yamt	sync with head.
1.5.8.1	13-Aug-2007	yamt	file vfsops_stub.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:37 +0000
1.5.6.1	06-Nov-2007	matt	sync with HEAD
1.5.4.3	23-Oct-2007	ad	Sync with head.
1.5.4.2	20-Aug-2007	ad	Sync with HEAD.
1.5.4.1	13-Aug-2007	ad	file vfsops_stub.c was added on branch vmlocking on 2007-08-20 22:07:31 +0000
1.5.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.5.2.1	13-Aug-2007	skrll	file vfsops_stub.c was added on branch nick-csl-alignment on 2007-08-15 13:50:42 +0000
1.6.30.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.6.30.1	19-Oct-2008	haad	Sync with HEAD.
1.6.26.1	10-Oct-2008	skrll	Sync with HEAD.
1.6.24.1	04-May-2009	yamt	sync with head.
1.6.20.2	17-Jan-2009	mjf	Sync with HEAD.
1.6.20.1	05-Oct-2008	mjf	Sync with HEAD.
1.6.4.2	02-Nov-2007	joerg	Reduce diff to HEAD by adding files forgotten in early merges.
1.6.4.1	17-Oct-2007	joerg	file vfsops_stub.c was added on branch jmcneill-pm on 2007-11-02 12:43:54 +0000
1.7.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.197	24-Sep-2023	martin	PR kern/57626: instead of an (arbitrary) FAKE_PAGE_SHIFT (and always using 4k pages), query the hypervisor for the real page size of the host kernel and use that for architectures that do not have compile time constant page sizes.
1.196	22-Apr-2023	riastradh	rump: Move ubc_uiomove, ubc_zerorange from rumpvfs to rumpkern. Needed by kern_ksyms.c. We could split kern_ksyms.c up into kernel- internal interfaces and the user/kernel /dev/ksyms interface, but there's nothing vfs-specific about ubc_uiomove and ubc_zerorange anyway, so let's just define them in rumpkern.
1.195	22-Apr-2023	riastradh	rumpkern: Provide stub uvm_vnodeops weak alias. Needed for UVM_OBJ_IS_VNODE, but not for anything else in rumpkern without rumpvfs.
1.194	26-Oct-2022	riastradh	sys/*: Get module_map consistently from sys/module.h.
1.193	21-Aug-2022	riastradh	rumpkern: Abusing struct pmap internals now requires extra effort. (as it should)
1.192	16-Sep-2021	andvar	fix typos in word "successfully", mainly s/succesfully/successfully/.
1.191	05-Dec-2020	chs	update the rump copy of uvm_page_unbusy() to match the real version, in particular handle PG_PAGEOUT. fixes a few atf tests.
1.190	11-Jun-2020	ad	branches: 1.190.2; uvm_availmem(): give it a boolean argument to specify whether a recent cached value will do, or if the very latest total must be fetched. It can be called thousands of times a second and fetching the totals impacts not only the calling LWP but other CPUs doing unrelated activity in the VM system.
1.189	06-Jun-2020	ad	Correction to previous - set VI_PAGES correctly.
1.188	03-Jun-2020	ad	PR kern/55032 (rump/rumpkern/t_vm:uvmwait test case now fails) Work around issues with rump's pagedaemon emulation, including one that's sensitive to timing effects (i.e. scheduler changes). While here tidy up some other stuff around the emulation of page alloc/free.
1.187	17-Mar-2020	ad	Tweak the March 14th change to make page waits interlocked by pg->interlock. Remove unneeded changes and only deal with the PQ_WANTED flag, to exclude possible bugs.
1.186	14-Mar-2020	ad	Make page waits (WANTED vs BUSY) interlocked by pg->interlock. Gets RW locks out of the equation for sleep/wakeup, and allows observing+waiting for busy pages when holding only a read lock. Proposed on tech-kern.
1.185	14-Mar-2020	ad	rump - page/object dirtyness tracking corrections.
1.184	23-Feb-2020	ad	UVM locking changes, proposed on tech-kern: - Change the lock on uvm_object, vm_amap and vm_anon to be a RW lock. - Break v_interlock and vmobjlock apart. v_interlock remains a mutex. - Do partial PV list locking in the x86 pmap. Others to follow later.
1.183	15-Jan-2020	ad	Merge from yamt-pagecache (after much testing): - Reduce unnecessary page scan in putpages esp. when an object has a ton of pages cached but only a few of them are dirty. - Reduce the number of pmap operations by tracking page dirtiness more precisely in uvm layer.
1.182	05-Jan-2020	para	branches: 1.182.2; remove unused predicate function likely unused since kmem changes
1.181	02-Jan-2020	ad	rump: initialize pg->interlock
1.180	31-Dec-2019	ad	Fix rump.
1.179	31-Dec-2019	ad	Rename uvm_free() -> uvm_availmem().
1.178	31-Dec-2019	ad	Rename uvm_page_locked_p() -> uvm_page_owner_locked_p()
1.177	21-Dec-2019	ad	Add uvm_free(): returns number of free pages in system.
1.176	15-Dec-2019	ad	Merge from yamt-pagecache: - do gang lookup of pages using radixtree. - remove now unused uvm_object::uo_memq and vm_page::listq.queue.
1.175	14-Dec-2019	ad	Merge from yamt-pagecache: use radixtree for page lookup. rbtree page lookup was introduced during the NetBSD 5.0 development cycle to bypass lock contention problems with the (then) global page hash, and was a temporary solution to allow us to make progress. radixtree is the intended replacement. Ok yamt@.
1.174	13-Dec-2019	ad	Break the global uvm_pageqlock into a per-page identity lock and a private lock for use of the pagedaemon policy code. Discussed on tech-kern. PR kern/54209: NetBSD 8 large memory performance extremely low PR kern/54210: NetBSD-8 processes presumably not exiting PR kern/54727: writing a large file causes unreasonable system behaviour
1.173	14-May-2017	nat	branches: 1.173.10; 1.173.14; Add uvm_map_pageable dummy function. This means that the audio tests should run again. Ok christos@.
1.172	07-May-2017	martin	Provide stupid uvm_map() and uvm_unmap1() immplementations - might be enough to get audio tests in rump going again. XXX needs a RUMP chef to review/replace by something sane!
1.171	07-May-2017	martin	Add a dummy (non-working) uvm_map(). XXX someone with a clue please fix this for real!
1.170	20-Jul-2016	christos	branches: 1.170.6; add uvm_km_protect()
1.169	26-Jan-2016	pooka	branches: 1.169.2; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.168	26-Nov-2015	martin	Adapt to e_default_mapaddr signature changes
1.167	02-Jun-2015	pooka	In case pagedaemon can't release any more memory, use kpause() instead of cv_timedwait() on the pagedaemon condvar -- it's no use constantly waking the pagedaemon up for new memory allocation attempts, as will happen e.g. if new network connections are constantly pouring in.
1.166	18-Apr-2015	pooka	Give remote clients struct pmap storage. Although the pmap is unused, that way we can sure that the pmap macro framework doesn't access all the wrong places.
1.165	17-Apr-2015	pooka	g/c rump_vmmap No recollection what it was used for; didn't seem to be used even when it was originally added 5th August 2007.
1.164	17-Apr-2015	pooka	Give the kernel/local pmaps actual storage. That way friendly neighborhood macros won't go scribbling in the wrong places.
1.163	03-Apr-2015	pooka	Use RUMP_PMAP_KERNEL and RUMP_PMAP_LOCAL to denote kernel and local client pmaps, respectively.
1.162	03-Apr-2015	pooka	Use a different vmspace for rump kernel proc0 and local clients. While the rump kernel and local clients are by definition in the same host vmspace, there are subtle differences in how in-kernel code works in case accessing the kernel vmspace or a user process vmspace. Problem discovered by riastradh's "read(fd, NULL, 1)" test.
1.161	03-Jan-2015	pooka	Put all sysproxy routines to their own C module, sysproxy.c
1.160	14-Dec-2014	chs	add a new "fo_mmap" fileops method to allow use of arbitrary uvm_objects for mappings of file objects. move vnode-specific details of mmap()ing a vnode from uvm_mmap() to the new vnode-specific vn_mmap(). add new uvm_mmap_dev() and uvm_mmap_anon() convenience functions for mapping character devices and anonymous memory, and replace all other calls to uvm_mmap() with those. use the new fileop in drm2 so that libdrm can use mmap() to map things like on other platforms (instead of the ioctl that we have used so far).
1.159	15-Jun-2014	pooka	branches: 1.159.2; 1.159.4; update comment
1.158	13-Jun-2014	pooka	make sure we don't underflow the memlimit
1.157	13-Jun-2014	pooka	fill in a few more uvmexp entries
1.156	25-Apr-2014	pooka	Init function pointers to nullop() so that callers don't need a dance
1.155	12-Apr-2014	pooka	apparently DFLSSIZ isn't defined on powerpc, so pull a value out of el stetson
1.154	10-Apr-2014	pooka	Pretend that we have slightly more reasonable stack size limits. (we don't have stacks, that's why we pretend)
1.153	09-Apr-2014	pooka	implement lwp_create() and a few related interfaces. main raison d'impalerment: the aio driver
1.152	11-Mar-2014	pooka	branches: 1.152.2; kill undesirable #ifndef _RUMPKERNEL
1.151	11-Mar-2014	pooka	deduplicate uvm_object_printit() implementation
1.150	03-Mar-2014	pooka	Fix the memory limiter to work for non-pagedaemon threads again reported by njoly
1.149	18-Feb-2014	pooka	Use same uvm_swap_shutdown() stub for !vmswap kernels and rump kernels.
1.148	17-Feb-2014	pooka	simply issue a warning if <1MB RAM configured. it might work, but not going to start enumerating when and where it might.
1.147	17-Feb-2014	pooka	reserve a small amount of memory for the pagedaemon
1.146	23-Nov-2013	christos	add a copy of uvm_swap_shutdown() here so that it is not undefined when we use it.
1.145	14-Nov-2013	martin	As discussed on tech-kern: make TOPDOWN-VM runtime selectable per process (offer MD code or emulations to override it).
1.144	30-Apr-2013	pooka	branches: 1.144.4; Flip parameter order in the clock hypercalls to make them consistent with everything else wrt in/out parameters.
1.143	30-Apr-2013	pooka	add missing demogorgon
1.142	30-Apr-2013	pooka	Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.141	29-Apr-2013	pooka	Replace the various "get info from hypervisor" interfaces with one unified rumpuser_getparam(), and make it return a plist. The contents can come e.g. from the env or a config file. Make identifiers starting with an underscore denote system identifiers which must be implemented by hypervisor. (yea, j/k about the plist bit)
1.140	28-Apr-2013	pooka	Appearances count: spell "IPL_NONE" correctly.
1.139	28-Apr-2013	pooka	Improve the time-related hypercalls so that's it's possible to sleep until an absolute time on the host's monotonic clock (should something like that be supported).
1.138	27-Apr-2013	pooka	* treat kern_malloc.c as an unreal allocator (it's so lightweight) * get rid of the rumpuser_realloc() hypercall * pass size to rumpuser_free()
1.137	10-Mar-2013	pooka	Use kern_malloc.c instead of the relegated allocators in memalloc.c. Previously this didn't make sense due to the use of kmem_map, but the new malloc is more dynamic and puts sense into using it.
1.136	06-Mar-2013	yamt	simplify code add a comment
1.135	29-Jan-2013	para	make vmem(9) ready to be used early during bootstrap to replace extent(9) pass memory for vmem structs into the initialization function and do away with the static pool of vmem structs. remove special bootstrapping of the quantum cache pools of the kmem_va_arena as memory for pool_caches is allocated via pool_allocator_meta which is fully operational at this point.
1.134	26-Jan-2013	para	revert previous commit not yet fully functional, sorry
1.133	26-Jan-2013	para	make vmem(9) ready to be used early during bootstrap to replace extent(9). pass memory for vmem structs into the initialization functions and do away with the static pools for this. factor out the vmem internal structures into a private header. remove special bootstrapping of the kmem_va_arena as all necessary memory comes from pool_allocator_meta wich is fully operational at this point.
1.132	14-Jan-2013	pooka	Don't use __weak_alias where the component framework is sufficient.
1.131	13-Nov-2012	pooka	kill some -Wunused-but-set-variable warnings
1.130	27-Jul-2012	pooka	branches: 1.130.2; Use mmap hypercall for memory allocation only when absolutely necessary (map == module_map). Otherwise, use the malloc hypercall. This avoids relying on the platform's mmap() to be able to return arbitrarily alignment memory.
1.129	20-Jul-2012	pooka	Make it possible to select between real and unreal allocators from make. Plus some gratuitous renaming.
1.128	20-Jul-2012	pooka	make unreal allocators work again
1.127	05-Jun-2012	jym	Now that pool_cache_invalidate() is synchronous and can handle per-CPU caches, merge together pool_drain_start() and pool_drain_end() into bool pool_drain(struct pool **ppp); "bool" value indicates whether reclaiming was fully done (true) or not (false) "ppp" will contain a pointer to the pool that was drained (optional). See http://mail-index.netbsd.org/tech-kern/2012/06/04/msg013287.html
1.126	23-May-2012	martin	Recently uvm_page_locked_p() leaked outside of uvm/MD code, so rump needs to provide one.
1.125	17-Mar-2012	hannken	Don't take a mutex we already took 6 lines above.
1.124	05-Mar-2012	para	adjust rump for static pool_cache count should have went in with subr_vmem 1.73
1.123	19-Feb-2012	martin	Adapt to constification in sys/uvm/uvm_export.h
1.122	29-Jan-2012	njoly	branches: 1.122.2; Move pool subsystem init from rump__init() to uvm_init(), following kernel code. Fix RUMP_LOCKDEBUG early panic.
1.121	27-Jan-2012	para	extending vmem(9) to be able to allocated resources for it's own needs. simplifying uvm_map handling (no special kernel entries anymore no relocking) make malloc(9) a thin wrapper around kmem(9) (with private interface for interrupt safety reasons) releng@ acknowledged
1.120	31-Oct-2011	yamt	branches: 1.120.2; 1.120.6; replace a non us-ascii character in a comment
1.119	02-Sep-2011	christos	trylockowner is not needed anymore.
1.118	01-Sep-2011	christos	fix the build for rumpserver.
1.117	19-Jun-2011	hannken	Make ubc_purge() a noop.
1.116	12-Jun-2011	mrg	include uvm_object.c in the rump kernel for the new uvm_obj* functions. don't build the uvm_object.c uvm_object_printit() for _RUMPKERNEL. (XXX) add empty panic() stubs for uvm_loanbreak() and ubc_purge(). fixes some more 5.99.53 rump build issues.
1.115	12-Jun-2011	rmind	Welcome to 5.99.53! Merge rmind-uvmplock branch: - Reorganize locking in UVM and provide extra serialisation for pmap(9). New lock order: [vmpage-owner-lock] -> pmap-lock. - Simplify locking in some pmap(9) modules by removing P->V locking. - Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs). - Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner. Add TLBSTATS option for x86 to collect statistics about TLB shootdowns. - Unify /dev/mem et al in MI code and provide required locking (removes kernel-lock on some ports). Also, avoid cache-aliasing issues. Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches formed the core changes of this branch.
1.114	21-Mar-2011	pooka	branches: 1.114.2; Update copyright statements. no functional change.
1.113	22-Feb-2011	pooka	Shuffle the pagedaemon algorithm a bit to record the number of pageouts active and give up only if the pagedaemon could not free memory and there are no outstanding pageouts. This should fix the "out of memory" pauses reported by Mihai Chelaru and Taylor R Campbell. Tested by copying files to and from an ffs backed by /dev/wd0 (with and without -o log) using a 1MB rump kernel memory limit.
1.112	22-Feb-2011	pooka	complete the incomplete pagesize rototill
1.111	10-Feb-2011	pooka	Make vmapbuf() return success/error and make physio deal with a failure.
1.110	10-Feb-2011	pooka	Set b_error in vunmapbuf() if copyout_proc fails. XXX: what if copyin fails in vmapbuf()?
1.109	05-Feb-2011	pooka	Use correct strtoululululu variant. from Taylor R Campbell
1.108	22-Jan-2011	pooka	Add a comment explaning why uvm_reclaim_hook is not currently necessary for rump. XXX: strictly speaking, the zfs implementation does not work correctly since it just wakes up a thread instead of performing the scan in the context of the pagedaemon
1.107	18-Jan-2011	haad	branches: 1.107.2; Add support for compiling ZFS and Solaris modules as RUMP libraries. Add some locking and rumpcopy primitives and refactor module building Makefiles to work with both RUMP and kernel modules. This is first part of adding support for regular test of zfs on NetBSD to hunt some bugs and make it stable. Ok by pooka@.
1.106	13-Jan-2011	pooka	branches: 1.106.2; Introduce RUMP_LOCALPROC_P() macro and use it.
1.105	08-Jan-2011	pooka	Do a minidehumanizenumber for RUMP_MEMLIMIT. Now you can set it to e.g. 16m instead of having to type out 16777216.
1.104	01-Dec-2010	pooka	If the pagedaemon cannot free any memory due to not being able to lock any uvm objects, check if lockholders are currently on CPU and yield to try very soon again instead of assuming deadlock. This makes limited-memory kernels perform the same as memory-unlimited kernels (provided there is a reasonable amount of memory available). For example, for large file copy off of ffs where the image is backed on host memory (i.e. no disk i/o, i.e. ideal conditions) the figures are, per rump kernel memory limit: 3000kB: same 1000kB: 10% slower 500kB: 50% slower (per pagedaemon code might still be able to use some tweak, though)
1.103	01-Dec-2010	pooka	Make uvm_pagealloc_tele() fail if the request can't be immediately satisfied. This allows the caller to unlock the object and the pagedaemon to avoid deadlock even if ~all memory is consumed by one vm object. This in turn makes is possible to copy a large file into a rump kernel with a 10MB memory limit (where large >> 10MB). A little more tuning will be required to avoid the pagedaemon hitting the sleep-and-retry path, though. + fix some outdated unrelated comments
1.102	22-Nov-2010	pooka	Support physio for remote processes. ==> add support for remote vmspace vmapbuf/vunmapbuf ==> add proper support for copyin/out_vmspace ==> add support for remote vmspace uvm_io ==> add support for non-curproc rumpuser_sp_copyin/out ==> store remote context in vm_map->pmap instead of pthread_specificdata In short, makes read/write of most (all?) block devices work from a remote rump client via rump syscalls.
1.101	17-Nov-2010	pooka	cleanup some old garbage
1.100	16-Nov-2010	uebayasi	Define uvmexp_pagemask and friends used by sparc to set PAGE_SIZE, PAGE_MASK, PAGE_SHIFT dynamically.
1.99	12-Nov-2010	uebayasi	Abstraction fix; move physical address -> per-page metadata (struct vm_page ) "reverse" lookup code from uvm_page.h to uvm_page.c, to help migration to not do that. Likewise move per-page metadata (struct vm_page ) -> physical address "forward" conversion code into *.c too. This is called only low-layer VM and MD code.
1.98	27-Oct-2010	pooka	Start rework of system call proxying over socket ("sysproxy"). This incarnation is written in the user namespace as opposed to the previous one which was done in kernel namespace. Also, rump does all the handshaking now instead of excepting an application to come up with the user namespace socket. There's still a lot to do, including making code "a bit" more robust, actually running different clients in a different process inside the kernel and splitting the client side library from librump. I'm committing this now so that I don't lose it, plus it generally works as long as you don't use it in unexcepted ways: i've tested ifconfig(8), route(8), envstat(8) and sysctl(8).
1.97	13-Oct-2010	pooka	Don't reorder page on the age queue if the lookup is done by the pagedaemon. This mimics normal kernel behaviour where pmap_kentered mappings are not tracked for references. Without this change the vnode pager's clustering could cause one page to be released by the pagedaemon, and the rest of the pages in the pageout cluster made unlikely candidates to be released soon.
1.96	24-Sep-2010	rmind	Fixes/improvements to RB-tree implementation: 1. Fix inverted node order, so that negative value from comparison operator would represent lower (left) node, and positive - higher (right) node. 2. Add an argument (i.e. "context"), passed to comparison operators. 3. Change rb_tree_insert_node() to return a node - either inserted one or already existing one. 4. Amend the interface to manipulate the actual object, instead of the rb_node (in a similar way as Patricia-tree interface does). 5. Update all RB-tree users accordingly. XXX: Perhaps rename rb.h to rbtree.h, since cleaning-up.. 1-3 address the PR/43488 by Jeremy Huddleston. Passes RB-tree regression tests. Reviewed by: matt@, christos@
1.95	09-Sep-2010	pooka	* unlock object in "error" branch * fix typo (not in comment) * improve indentation tailspin
1.94	09-Sep-2010	pooka	Assert that object is locked in page unbusy.
1.93	08-Sep-2010	pooka	Actually, we want to say "no aobjs" instead of "only vnodes" to make component boundaries go right.
1.92	08-Sep-2010	pooka	Improve pagedaemon performance: * page out vnode objects * drain kmem/kernel_map As long as there is a reasonable memory hardlimit (>600kB or so), a rump kernel can now survive file system metadata access for an arbitrary size file system (provided, of course, that the file system does not use wired kernel memory for metadata ...). Data handling still needs a little give&take finetuning. The general problem is that a single vm object can easily be the owner of all vm pages in a rump kernel. now, if a thread wants to allocate memory while holding that object locked, there's very little the pagedaemon can do to avoid deadlock. but I think the problem can be solved by making an object release a page when it wants to allocate a page if a) the system is short on memory and b) too many pages belong to the object. that still doesn't take care of the pathological situation where 1000 threads hold an object with 1 page of memory locked and try to allocate more. but then again, running 1000 threads with <1MB of memory is an unlikely scenario. and ultimately, I call upon the fundamental interaction which is the basis of why any operating works: luck.
1.91	07-Sep-2010	pooka	Make the Diabolical (Page)Daemon Director drain vfs buffers when we are short of memory. There are still some funnies left to iron out. For example, with a certain file system / memory size configuration it's still not possible to create enough files to make the file system run out of inodes before the kernel runs out of memory. Also, with some other configurations disk access slows down gargantually (though i'm sure there are >0 buffers available). Anyway, it ~works for now and it's by no means worse than what it was before.
1.90	07-Sep-2010	pooka	Improve page allocator performance by using pool_cache for the structure itself and allocating the backing page directly from the hypervisor. * initial write to a large tmpfs file is almost 2x faster * truncating the file to 0 length after write is over 50% faster * rewrite of the file is just slightly faster (indicating that kmem does a good job with caching, as expected)
1.89	07-Sep-2010	pooka	Use rb_tree for page lookup instead of list. Unshockingly, this makes dealing with large uobjs (files) quite a bit faster.
1.88	06-Sep-2010	pooka	Use standard uvm aobj pager. Most of the kernel aobj pager complexity comes from swap handling, but that is included only with VMSWAP.
1.87	29-Jul-2010	hannken	Correct previous. Skip marker pages in uvm_pagelookup(). Already awake :-)
1.86	29-Jul-2010	pooka	Remove questionable KASSERT from previous. hannken can look at this more closely when he wakes up. Normally I wouldn't be in such a huge rush, but due to atf bug #53 the whole test run breaks now. At least with the KASSERT removed all tests pass again.
1.85	29-Jul-2010	hannken	Add vm page flag PG_MARKER and use it to tag dummy marker pages in genfs_do_putpages() and uao_put(). Use 'v_uobj.uo_npages' to check for an empty memq. Put some assertions where these marker pages may not appear. Ok: YAMAMOTO Takashi <yamt@netbsd.org>
1.84	14-Jun-2010	pooka	Make it possible to define an upper limit for memory consumed by the rump kernel by specifying RUMP_MEMLIMIT. In case allocation over that limit is attempted, essentially pool reclaim and uvm_wait() is done. The default is to allow to allocate as much as the host will give. XXX: uvm_km_alloc and malloc(9) do not currently conform. the former is easy, the latter requires kern_malloc.c (rump malloc is currently directly relegated to host malloc).
1.83	10-Jun-2010	pooka	Use kern_proc.c instead of a collection of stubs. But what we really wanted from this commit was the support for proc_specificdata. TODO: make creating a new process actually use kern_proc and maybe even add an interface which starts a process with "any pid you don't like"
1.82	09-Jun-2010	pooka	On amd64, allocate module_map memory from the lowest 2GB.
1.81	09-Jun-2010	pooka	Add the ability to specify a preferred address the "map anon memory" hypercall.
1.80	03-Jun-2010	pooka	Implement a sort-of pagedaemon: adjust all memory allocators to go through an in-rumpkernel hypermemory allocator which knows it should kick the pagedaemon and block in case ``waitok'' memory allocation fails. This allows us to recover from some out-of-memory situations. Realworld'istically speaking (as opposed to whatever "should be" theory), these OOM situations will happen extremely rarely if ever when our hypervisor is a regular process. Speculatively, this should be useful for other types of hosts. issues remaining: * the hypervisor does not know how to reclaim kernel memory (and for the reason I stated above, I'm not sure if it makes sense to teach the current implementation about that) * vfs memory (buffers, vm object pages etc.) is not reclaimed
1.79	02-Jun-2010	pooka	rumpvm_init -> uvm_init to get rid of local prototype. no functional change
1.78	01-Jun-2010	pooka	Don't pass "canfail" down to rumpuser_malloc -- there's quite little we can do with that info way down there. Instead, pass alignment. Implement rumpuser_malloc() with posix_memalign().
1.77	01-Jun-2010	pooka	Always use rumpuser_malloc() for allocating both poolpage and poolpage_cache -- its bootstrap cost is slightly higher than anonmmap, but it's faster in the long run.
1.76	01-Jun-2010	pooka	* remove rumpvm_makepage, just use uvm_pagealloc() * update copyright to reflect reality a little better
1.75	26-May-2010	pooka	print vm object refcount
1.74	14-May-2010	pooka	Pick up after people who find build-testing their changes too difficult.
1.73	11-May-2010	pooka	uvm_object_printit() should be wrapped in DEBUGPRINT
1.72	28-Apr-2010	pooka	Instead of causing a catastrophic failure when uvm_loanuobjpages() is called, just pretend it hit a wired page and return EBUSY. This should cause callers to use a non-loaning access path instead. Fixes file read path of stock nfs kernel module (previously it was easy to just frob the nfsd_use_loan boolean into the other position by simple value assingment, but now that nfsserver can be autoloaded at runtime into the rump kernel, that approach is a little more challenging since the variable isn't available in application linkage. yes, things like adding a sysctl for the variable would work, but now everything works out-of-the-box).
1.71	21-Apr-2010	pooka	support kern_resource
1.70	04-Dec-2009	pooka	branches: 1.70.2; 1.70.4; g/c unused functions (previously used by the vnode pager).
1.69	04-Dec-2009	pooka	Implement enough of uvm_mmap() to make the creative proplib ioctl copyout code work. No comments ... okok, if that'll make you leave me alone: it's ioctl, so it's supposed to be funky (with a score or two of psychedelic rock).
1.68	04-Dec-2009	pooka	Provide the default_mapaddr method in default rump emul (since some kernel callers want to use it).
1.67	04-Nov-2009	pooka	Pull all relegating memory allocators under a common roof in memalloc.c
1.66	04-Nov-2009	pooka	Use std. uiomove() & friends.
1.65	21-Oct-2009	rmind	Sync rump with kernel changes.
1.64	21-Oct-2009	rmind	Remove uarea swap-out functionality: - Addresses the issue described in PR/38828. - Some simplification in threading and sleepq subsystems. - Eliminates pmap_collect() and, as a side note, allows pmap optimisations. - Eliminates XS_CTL_DATA_ONSTACK in scsipi code. - Avoids few scans on LWP list and thus potentially long holds of proc_lock. - Cuts ~1.5k lines of code. Reduces amd64 kernel size by ~4k. - Removes __SWAP_BROKEN cases. Tested on x86, mips, acorn32 (thanks <mpumford>) and partly tested on acorn26 (thanks to <bjh21>). Discussed on <tech-kern>, reviewed by <ad>.
1.63	19-Oct-2009	pooka	remove stale uvm_readahead() stub
1.62	16-Oct-2009	pooka	Include sys_select.c for proper select()/poll() support.
1.61	04-Aug-2009	pooka	* support uvm_pagermapin/out(), adapt uvm_pageratop() Instead of doing actual page remapping, which we can't portably do in userspace without extensive trickery (read: signals), simply allocate the kva window with new physical backing, copy page contents, return, and copy contents back in mapout. Since the pages are locked during the mapping cycle, we can do this without hazard. * add lots of stubbies necessary for new stuff coming soon
1.60	03-Aug-2009	pooka	g/c cachepgmtx, i have no idea what it was supposed to be useful for.
1.59	03-Aug-2009	pooka	track number of pages associated with vm object
1.58	10-Jun-2009	he	Add a dummy uvm_readahead() function, to fix build issues after it recently got added to the kernel. OK'ed by pooka@
1.57	03-Jun-2009	pooka	Add user vmspace locking and remapping routines. Obviously, these currently work only if the vmspace is local to the rump kernel.
1.56	03-May-2009	pooka	define DEBUGPRINT
1.55	28-Apr-2009	pooka	Free uao lock when destroying object. Fixes tmpfs rename leak reported by njoly.
1.54	24-Apr-2009	pooka	* init pool linksets, makes proplib work. reported by Arnaud Ysmal. (linksets, sigh) * reduce #ifdef for RUMP_USE_REAL_ALLOCATORS
1.53	18-Mar-2009	cegger	Ansify function definitions w/o arguments. Generated with sed.
1.52	06-Feb-2009	pooka	branches: 1.52.2; Call uvm_page_unbusy() instead of manually yanking PG_BUSY out.
1.51	23-Jan-2009	pooka	last-minute pasto in previous
1.50	23-Jan-2009	pooka	Add a compile-time option to use kmem/vmem/pools from the kernel sources instead of homegrown allocators. Default to "on", even though they appear to be a few percent slower at least on short jobs (e.g. untar to tmpfs).
1.49	04-Jan-2009	pooka	Include libkern contents in librump.
1.48	18-Dec-2008	pooka	__KERNEL_RCSID
1.47	16-Dec-2008	pooka	Mark pages busy during VOP_PUTPAGES(). Deals with KASSERT in nfs write.
1.46	16-Dec-2008	pooka	Make rumpflushva flush only the atop info for a certain uvm object. Better, but still not completely race-free (if two threads call RUMP_VOP_PUTPAGES() directly for the same vm object).
1.45	27-Nov-2008	pooka	Move more vfs-related vm routines from rumpkern to rumpvfs.
1.44	27-Nov-2008	pooka	Remove the whole magic ubc window thingie. All file systems use ubc_uiomove() now, so we can hook ourselves there.
1.43	26-Nov-2008	pooka	Add a few symbols required by nfsd
1.42	19-Nov-2008	pooka	Split vfs out of rumpkern into rumpvfs. Non-fs rumps no longer include the file system code. File system rumps explicitly need to include rumpvfs from now on.
1.41	15-Oct-2008	pooka	branches: 1.41.2; 1.41.8; Add support bits necessary for rumpnet functionality.
1.40	10-Oct-2008	pooka	* implement uvm_km_alloc/free_poolpage() * add silly stubs for uvm_lwp_hold/rele()
1.39	10-Oct-2008	pooka	reorganize routines a bit better. no functional change
1.38	30-Sep-2008	pooka	Make sure proc0.p_vmspace qualifies as VMSPACE_IS_KERNEL_P().
1.37	07-Aug-2008	pooka	pg->flags &= PG_CLEAN --> &= ~PG_CLEAN; Fixes at least writing to the fs for msdosfs.
1.36	05-Aug-2008	pooka	Honor PG_RELEASED when unbusying a page. Fixes ufs file system full problem discovered by Simon Burge.
1.35	04-Aug-2008	pooka	Add support for using real kmem/vmem. Don't enable it by default, though, since it a) is a lot of unnecessary indirection in rump b) requires callouts which are so far unimplemented.
1.34	29-Jul-2008	pooka	Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.33	20-Jul-2008	pooka	assert -> KASSERT
1.32	05-Jun-2008	ad	branches: 1.32.2; 1.32.4; Make it build again.
1.31	04-Jun-2008	ad	Make it build.
1.30	11-Mar-2008	pooka	branches: 1.30.2; 1.30.4; 1.30.6; Backup some fixes for recent breakage from local tree. Also some other improvements such as exporting the real kernel namei and using that in ukfs instead of the homegrown heap'o hacks namei. "etcetc".
1.29	27-Jan-2008	pooka	branches: 1.29.2; 1.29.6; honor pager locking protocol in uao_detach()
1.28	27-Jan-2008	pooka	Fix locking botches: take vm object lock before calling pager, not inside the pager.
1.27	03-Jan-2008	pooka	Theoretically this is supposed to be interchangeable with real kernel code. Use kmem_alloc/free instead of some wily homerolled rump interfaces for memory allocation.
1.26	02-Jan-2008	pooka	fix vmlocking2 fallout: * I heard a wild rumor that vp_interlock is a mutex these days (hi ad!) * init new locks (hi ad) * observe that with simple_locks only deadlocks would be caught while releasing unlocked locks would go unnoticed. make locking work (hi pooka)
1.25	02-Jan-2008	ad	Merge vmlocking2 to head.
1.24	01-Dec-2007	yamt	branches: 1.24.2; 1.24.6; constify pagerops.
1.23	06-Nov-2007	pooka	Fix locking issues with the anonymous pager too so that tmpfs can work.
1.22	06-Nov-2007	pooka	Sprinkle some more locking, especially to the vm. Due to some additional fixes, it's now possible to run file systems with spinlocks actually enabled. The genfs_putpages() locking is still working only due to greater powers, but I'll eventually get around to fixing it.
1.21	04-Nov-2007	pooka	branches: 1.21.2; * sprinkle some locking into the vm code * avoid extra insert+search+remove step in file systems using ubc_uiomove() instead of standard uiomove()
1.20	31-Oct-2007	pooka	branches: 1.20.2; Make it possible to run rumps multithreaded. This brings real locking and makes it possible to run file systems which create threads. It also makes rump file system behaviour better match file system behaviour in the kernel.
1.19	28-Oct-2007	pooka	In uvm_estimatepageable() "estimate" pageable.
1.18	10-Oct-2007	ad	branches: 1.18.2; Merge from vmlocking: - Split vnode::v_flag into three fields, depending on field locking. - simple_lock -> kmutex in a few places. - Fix some simple locking problems.
1.17	12-Sep-2007	pooka	branches: 1.17.2; don't allocate variable-sized arrays from the stack
1.16	01-Sep-2007	pooka	branches: 1.16.2; Make bioops a pointer and point it to the softdeps struct in softdep init. Decouples "options SOFTDEP" from the main kernel and ffs code.
1.15	01-Sep-2007	pooka	* add a very crude version of uvm_pageatop() * add biodone/aiodone
1.14	26-Aug-2007	pooka	branches: 1.14.2; few panicky functions
1.13	20-Aug-2007	pooka	branches: 1.13.2; Hide NetBSD kernel headers completely from ukfs. This includes creating accessors for: * struct mount & VFS ops * struct uio * struct vnode * struct vattr and some namespace games for: * namei flags * VOPs * enum vtype Also, split rump services into two categories: library private and public (rump_private.h and rump.h, respectively). As a result, it is now possible to compile and use the NetBSD kernel file systems on Linux (and probably other systems too with very little work), although the makefiles need a bit of work to make it a pleasureable experience.
1.12	14-Aug-2007	pooka	branches: 1.12.2; Kill handrolled buffercache and use vfs_bio from the kernel. This is mostly to get the flag jungle in sync with the kernel.
1.11	13-Aug-2007	pooka	Use supermarket variety vfs_vnops.c instead of homecooked routines (that's actually a good thing here).
1.10	11-Aug-2007	pooka	* move rump_vopwrite_fault() into history - we now support the file system faulting in pages if it does e.g. fragment reallocation * get rid of rumpvm_findpage() and always use uvm_pagelookup() * determine a vnode's cleanness by flagging it as being on the work list if we "take" a write fault and removing it from the worklist once pages are flushed. There is no work list here, but at least there is symmetry with the kernel.
1.9	09-Aug-2007	pooka	Play catchup with ufs/ffs changes: compile subr_specificdata.c and emulate kmem_foo() to support the prior.
1.8	09-Aug-2007	pooka	Fix it a bit & wait for the dust to settle. Also, enable UBC by default. ffs in userspace on top of puffs/p2k/rump is now stable enough to host a make -j4 kernel build (well, at least my kernel build ... but, yes, I am currently running that kernel on my desktop)
1.7	09-Aug-2007	pooka	Add some stubs for lfs.
1.6	07-Aug-2007	pooka	remove the allocstorage param from makepage - not needed
1.5	07-Aug-2007	pooka	track dirty vm objects
1.4	07-Aug-2007	pooka	When doing "ubc faults", truncate offsets to page boundary to get the last page also if it's accessed from the middle of the page.
1.3	06-Aug-2007	pooka	branches: 1.3.2; Instead of going for a PAGE_SIZE nuke, do getpages() in a more sniper style. Makes efs (& other file systems with bsize < PAGE_SIZE) work better.
1.2	06-Aug-2007	pooka	implement uvm_vnp_zerorange()
1.1	05-Aug-2007	pooka	Introduce RUMPs - Runnable Userspace Meta-Programs /sys/rump contains programs which run unmodified kernel code in an emulated userspace environment. The kernel environment is provided by librump. Currently supported are a number of file systems, which by using puffs integrate seamlessly into the system and provide a similar user experience to if the code was running as part of the kernel. Potential future rumpification targets include for example parts of the networking stack and some device drivers. This work was supported by Google Summer of Code 2007.
1.3.2.2	06-Aug-2007	pooka	Instead of going for a PAGE_SIZE nuke, do getpages() in a more sniper style. Makes efs (& other file systems with bsize < PAGE_SIZE) work better.
1.3.2.1	06-Aug-2007	pooka	file vm.c was added on branch matt-mips64 on 2007-08-06 20:46:29 +0000
1.12.2.3	03-Sep-2007	skrll	Sync with HEAD.
1.12.2.2	15-Aug-2007	skrll	Sync with HEAD.
1.12.2.1	14-Aug-2007	skrll	file vm.c was added on branch nick-csl-alignment on 2007-08-15 13:50:43 +0000
1.13.2.3	09-Oct-2007	ad	Sync with head.
1.13.2.2	20-Aug-2007	ad	Sync with HEAD.
1.13.2.1	20-Aug-2007	ad	file vm.c was added on branch vmlocking on 2007-08-20 22:07:31 +0000
1.14.2.4	23-Mar-2008	matt	sync with HEAD
1.14.2.3	09-Jan-2008	matt	sync with HEAD
1.14.2.2	08-Nov-2007	matt	sync with -HEAD
1.14.2.1	06-Nov-2007	matt	sync with HEAD
1.16.2.8	17-Mar-2008	yamt	sync with head.
1.16.2.7	04-Feb-2008	yamt	sync with head.
1.16.2.6	21-Jan-2008	yamt	sync with head
1.16.2.5	07-Dec-2007	yamt	sync with head
1.16.2.4	15-Nov-2007	yamt	sync with head.
1.16.2.3	27-Oct-2007	yamt	sync with head.
1.16.2.2	03-Sep-2007	yamt	sync with head.
1.16.2.1	01-Sep-2007	yamt	file vm.c was added on branch yamt-lazymbuf on 2007-09-03 14:45:38 +0000
1.17.2.1	14-Oct-2007	yamt	sync with head.
1.18.2.1	13-Nov-2007	bouyer	Sync with HEAD
1.20.2.6	03-Dec-2007	joerg	Sync with HEAD.
1.20.2.5	06-Nov-2007	joerg	Sync with HEAD.
1.20.2.4	04-Nov-2007	jmcneill	Sync with HEAD.
1.20.2.3	02-Nov-2007	joerg	Remove the rest of the unintentional diff in sys/rump.
1.20.2.2	31-Oct-2007	joerg	Sync with HEAD.
1.20.2.1	31-Oct-2007	joerg	file vm.c was added on branch jmcneill-pm on 2007-10-31 23:14:18 +0000
1.21.2.3	18-Feb-2008	mjf	Sync with HEAD.
1.21.2.2	08-Dec-2007	mjf	Sync with HEAD.
1.21.2.1	19-Nov-2007	mjf	Sync with HEAD.
1.24.6.2	08-Jan-2008	bouyer	Sync with HEAD
1.24.6.1	02-Jan-2008	bouyer	Sync with HEAD
1.24.2.1	28-Dec-2007	ad	Make rump build.
1.29.6.5	17-Jan-2009	mjf	Sync with HEAD.
1.29.6.4	05-Oct-2008	mjf	Sync with HEAD.
1.29.6.3	28-Sep-2008	mjf	Sync with HEAD.
1.29.6.2	05-Jun-2008	mjf	Sync with HEAD. Also fix build.
1.29.6.1	03-Apr-2008	mjf	Sync with HEAD.
1.29.2.1	24-Mar-2008	keiichi	sync with head.
1.30.6.3	10-Oct-2008	skrll	Sync with HEAD.
1.30.6.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.30.6.1	23-Jun-2008	wrstuden	Sync w/ -current. 34 merge conflicts to follow.
1.30.4.6	09-Oct-2010	yamt	sync with head
1.30.4.5	11-Aug-2010	yamt	sync with head.
1.30.4.4	11-Mar-2010	yamt	sync with head
1.30.4.3	19-Aug-2009	yamt	sync with head.
1.30.4.2	20-Jun-2009	yamt	sync with head
1.30.4.1	04-May-2009	yamt	sync with head.
1.30.2.1	17-Jun-2008	yamt	sync with head.
1.32.4.2	13-Dec-2008	haad	Update haad-dm branch to haad-dm-base2.
1.32.4.1	19-Oct-2008	haad	Sync with HEAD.
1.32.2.2	31-Jul-2008	simonb	Sync with head.
1.32.2.1	21-Jul-2008	simonb	Sync with head.
1.41.8.3	19-Dec-2013	matt	Adapt to new uvm_estimatepageable arguments
1.41.8.2	10-Feb-2012	matt	uvm_pageout_done doesn't return anything more (it's void).
1.41.8.1	09-Feb-2012	matt	Update uvm_pageout_done defintion.
1.41.2.3	28-Apr-2009	skrll	Sync with HEAD.
1.41.2.2	03-Mar-2009	skrll	Sync with HEAD.
1.41.2.1	19-Jan-2009	skrll	Sync with HEAD.
1.52.2.2	23-Jul-2009	jym	Sync with HEAD.
1.52.2.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.70.4.6	12-Jun-2011	rmind	Sync RUMP's uvm_pagealloc_strat() and processpage() with branch changes.
1.70.4.5	21-Apr-2011	rmind	sync with head
1.70.4.4	05-Mar-2011	rmind	sync with head
1.70.4.3	03-Jul-2010	rmind	sync with head
1.70.4.2	30-May-2010	rmind	sync with head
1.70.4.1	16-Mar-2010	rmind	Change struct uvm_object::vmobjlock to be dynamically allocated with mutex_obj_alloc(). It allows us to share the locks among UVM objects.
1.70.2.5	06-Nov-2010	uebayasi	Sync with HEAD.
1.70.2.4	22-Oct-2010	uebayasi	Sync with HEAD (-D20101022).
1.70.2.3	17-Aug-2010	uebayasi	Sync with HEAD.
1.70.2.2	30-Apr-2010	uebayasi	Sync with HEAD.
1.70.2.1	29-Apr-2010	uebayasi	Fix build of rump.
1.106.2.1	06-Jun-2011	jruoho	Sync with HEAD.
1.107.2.3	05-Mar-2011	bouyer	Sync with HEAD
1.107.2.2	17-Feb-2011	bouyer	Sync with HEAD
1.107.2.1	08-Feb-2011	bouyer	Sync with HEAD
1.114.2.1	23-Jun-2011	cherry	Catchup with rmind-uvmplock merge.
1.120.6.5	02-Jun-2012	mrg	sync to latest -current.
1.120.6.4	05-Apr-2012	mrg	sync to latest -current.
1.120.6.3	06-Mar-2012	mrg	sync to -current
1.120.6.2	24-Feb-2012	mrg	sync to -current.
1.120.6.1	18-Feb-2012	mrg	merge to -current.
1.120.2.10	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.120.2.9	23-Jan-2013	yamt	sync with head
1.120.2.8	16-Jan-2013	yamt	sync with (a bit old) head
1.120.2.7	02-Nov-2012	yamt	fix a merge botch
1.120.2.6	30-Oct-2012	yamt	sync with head
1.120.2.5	17-Apr-2012	yamt	sync with head
1.120.2.4	25-Jan-2012	yamt	uvm_loanabj: take an access pattern hint.
1.120.2.3	14-Jan-2012	yamt	implement a rump stub of uvm_loanobj
1.120.2.2	10-Nov-2011	yamt	remove uobj->memq
1.120.2.1	02-Nov-2011	yamt	page cache related changes - maintain object pages in radix tree rather than rb tree. - reduce unnecessary page scan in putpages. esp. when an object has a ton of pages cached but only a few of them are dirty. - reduce the number of pmap operations by tracking page dirtiness more precisely in uvm layer. - fix nfs commit range tracking. - fix nfs write clustering. XXX hack
1.122.2.2	03-Apr-2012	riz	Pull up following revision(s) (requested by para in ticket #155): sys/kern/subr_vmem.c: revision 1.73 sys/kern/subr_kmem.c: revision 1.43 sys/rump/librump/rumpkern/vm.c: revision 1.124 make accounting for vm_inuse sane while here don't statically allocated for more caches then required adjust rump for static pool_cache count should have went in with subr_vmem 1.73 don't overallocated once we leave the caches
1.122.2.1	25-Mar-2012	bouyer	Pull up following revision(s) (requested by hannken in ticket #141): tests/rump/rumpkern/t_vm.c: revision 1.3 sys/rump/librump/rumpkern/vm.c: revision 1.125 Don't take a mutex we already took 6 lines above. Starting with Rev. 1.191 of kern/subr_pool.c a pool has to be inactive for at least 10 seconds before it can be reclaimed. Change the uvmwait test timeout from 10 to 30 seconds so it has a chance to reclaim memory and succeed.
1.130.2.5	03-Dec-2017	jdolecek	update from HEAD
1.130.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.130.2.3	23-Jun-2013	tls	resync from head
1.130.2.2	25-Feb-2013	tls	resync with head
1.130.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.144.4.1	18-May-2014	rmind	sync with head
1.152.2.1	10-Aug-2014	tls	Rebase.
1.159.4.6	28-Aug-2017	skrll	Sync with HEAD
1.159.4.5	05-Oct-2016	skrll	Sync with HEAD
1.159.4.4	19-Mar-2016	skrll	Sync with HEAD
1.159.4.3	27-Dec-2015	skrll	Sync with HEAD (as of 26th Dec)
1.159.4.2	06-Jun-2015	skrll	Sync with HEAD
1.159.4.1	06-Apr-2015	skrll	Sync with HEAD
1.159.2.1	31-Dec-2014	snj	Pull up following revision(s) (requested by chs in ticket #363): common/lib/libprop/prop_kern.c: revision 1.18 sys/arch/mac68k/dev/grf_compat.c: revision 1.27 sys/arch/x68k/dev/grf.c: revision 1.45 sys/external/bsd/drm/dist/bsd-core/drm_bufs.c: revision 1.12 sys/external/bsd/drm2/drm/drm_drv.c: revision 1.12 sys/external/bsd/drm2/drm/drm_vm.c: revision 1.6 sys/external/bsd/drm2/include/linux/mm.h: revision 1.4 sys/kern/vfs_vnops.c: revision 1.192 via patch sys/rump/librump/rumpkern/vm.c: revision 1.160 sys/sys/file.h: revision 1.78 via patch sys/uvm/uvm_device.c: revision 1.64 sys/uvm/uvm_device.h: revision 1.13 sys/uvm/uvm_extern.h: revision 1.192 sys/uvm/uvm_mmap.c: revision 1.150 via patch add a new "fo_mmap" fileops method to allow use of arbitrary uvm_objects for mappings of file objects. move vnode-specific details of mmap()ing a vnode from uvm_mmap() to the new vnode-specific vn_mmap(). add new uvm_mmap_dev() and uvm_mmap_anon() convenience functions for mapping character devices and anonymous memory, and replace all other calls to uvm_mmap() with those. use the new fileop in drm2 so that libdrm can use mmap() to map things like on other platforms (instead of the ioctl that we have used so far).
1.169.2.1	26-Jul-2016	pgoyette	Sync with HEAD
1.170.6.2	19-May-2017	pgoyette	Resolve conflicts from previous merge (all resulting from $NetBSD keywork expansion)
1.170.6.1	11-May-2017	pgoyette	Sync with HEAD
1.173.14.1	06-Jul-2021	martin	Pull up following revision(s) - all via patch - (requested by riastradh in ticket #1317): sys/uvm/uvm_page.c: revision 1.248 sys/uvm/uvm_anon.c: revision 1.80 sys/rump/librump/rumpvfs/vm_vfs.c: revision 1.40 sys/rump/librump/rumpvfs/vm_vfs.c: revision 1.41 sys/rump/librump/rumpkern/vm.c: revision 1.191 sys/uvm/uvm_pager.c: revision 1.130 external/cddl/osnet/dist/uts/common/fs/zfs/zfs_vnops.c: revision 1.71 tests/rump/rumpkern/t_vm.c: revision 1.5 tests/rump/rumpkern/t_vm.c: revision 1.6 sys/rump/librump/rumpvfs/vm_vfs.c: revision 1.39 Move the handling of PG_PAGEOUT from uvm_aio_aiodone_pages() to uvm_page_unbusy() so that all callers of uvm_page_unbusy() don't need to handle this flag separately. Split out the pages part of uvm_aio_aiodone() into uvm_aio_aiodone_pages() in rump just like in the real kernel. In ZFS functions that can fail to copy data between the ARC and VM pages, use uvm_aio_aiodone_pages() rather than uvm_page_unbusy() so that we can handle these "I/O" errors. Fixes PR 55702. fix an incorrect assertion in the previous commit. Handle PG_PAGEOUT in uvm_anon_release() too. Commit the ZFS file that I forgot in this previous commit: Move the handling of PG_PAGEOUT from uvm_aio_aiodone_pages() to uvm_page_unbusy() so that all callers of uvm_page_unbusy() don't need to handle this flag separately. Split out the pages part of uvm_aio_aiodone() into uvm_aio_aiodone_pages() in rump just like in the real kernel. In ZFS functions that can fail to copy data between the ARC and VM pages, use uvm_aio_aiodone_pages() rather than uvm_page_unbusy() so that we can handle these "I/O" errors. Fixes PR 55702. update the rump copy of uvm_page_unbusy() to match the real version, in particular handle PG_PAGEOUT. fixes a few atf tests. the busypage test is buggy, expect it to fail. make rump's uvm_aio_aiodone_pages() look more like the kernel version. fixes some more rumpy assertions. for the busypage test, replace atf_tc_expect_fail() with atf_tc_skip() because atf apparently has no way to expect a test program to crash. fixes PR 55945.
1.173.10.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.182.2.2	29-Feb-2020	ad	Sync with head.
1.182.2.1	17-Jan-2020	ad	Sync with head.
1.190.2.1	14-Dec-2020	thorpej	Sync w/ HEAD.
1.4	22-Apr-2015	pooka	Apparently new source files need to be added to each Makefile.inc individually. Who comes up with this kind of crappy build infra?
1.3	12-Feb-2014	pooka	branches: 1.3.6; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.2	15-Oct-2009	pooka	branches: 1.2.12; 1.2.22; 1.2.26; include rumpcpu_generic
1.1	06-Jan-2009	pooka	branches: 1.1.2; 1.1.4; 1.1.8; Add md crud to allow libkern softfloat code to build. And while here, make alpha use the real elf relocation code.
1.1.8.3	11-Mar-2010	yamt	sync with head
1.1.8.2	04-May-2009	yamt	sync with head.
1.1.8.1	06-Jan-2009	yamt	file Makefile.inc was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.1.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.1.4.1	06-Jan-2009	skrll	file Makefile.inc was added on branch nick-hppapmap on 2009-01-19 13:20:26 +0000
1.1.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.1.2.1	06-Jan-2009	mjf	file Makefile.inc was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.2.26.1	18-May-2014	rmind	sync with head
1.2.22.2	03-Dec-2017	jdolecek	update from HEAD
1.2.22.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.12.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.3.6.1	06-Jun-2015	skrll	Sync with HEAD
1.2	18-Mar-2009	cegger	branches: 1.2.2; Ansify function definitions w/o arguments. Generated with sed.
1.1	06-Jan-2009	pooka	branches: 1.1.2; 1.1.4; 1.1.6; Add md crud to allow libkern softfloat code to build. And while here, make alpha use the real elf relocation code.
1.1.6.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.1.4.3	28-Apr-2009	skrll	Sync with HEAD.
1.1.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.1.4.1	06-Jan-2009	skrll	file rumpcrud.c was added on branch nick-hppapmap on 2009-01-19 13:20:26 +0000
1.1.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.1.2.1	06-Jan-2009	mjf	file rumpcrud.c was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.2.2.2	04-May-2009	yamt	sync with head.
1.2.2.1	18-Mar-2009	yamt	file rumpcrud.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.5	22-Apr-2015	pooka	Apparently new source files need to be added to each Makefile.inc individually. Who comes up with this kind of crappy build infra?
1.4	17-Jun-2014	alnsn	branches: 1.4.4; 1.4.6; Antti objected to including rumpuser_sync_icache. Exclude it from the build.
1.3	17-Jun-2014	alnsn	Implement rumpuser_sync_icache hypercall.
1.2	12-Feb-2014	pooka	branches: 1.2.2; 1.2.4; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1	08-Aug-2013	matt	branches: 1.1.2; Build kobj_machdep.c
1.1.2.3	18-May-2014	rmind	sync with head
1.1.2.2	28-Aug-2013	rmind	sync with head
1.1.2.1	08-Aug-2013	rmind	file Makefile.inc was added on branch rmind-smpnet on 2013-08-28 23:59:37 +0000
1.2.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.4.1	12-Feb-2014	yamt	file Makefile.inc was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.2.1	10-Aug-2014	tls	Rebase.
1.4.6.1	06-Jun-2015	skrll	Sync with HEAD
1.4.4.3	03-Dec-2017	jdolecek	update from HEAD
1.4.4.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.4.4.1	17-Jun-2014	tls	file Makefile.inc was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1	17-Jun-2014	alnsn	branches: 1.1.2; 1.1.6; Implement rumpuser_sync_icache hypercall.
1.1.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.6.1	17-Jun-2014	tls	file cpufunc.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.2.2	10-Aug-2014	tls	Rebase.
1.1.2.1	17-Jun-2014	tls	file cpufunc.c was added on branch tls-earlyentropy on 2014-08-10 06:56:51 +0000
1.3	15-Nov-2018	riastradh	Make the direct-map API always available, but fail if KASAN or rump. (Only for architectures that support it at all; on others, __HAVE_MM_MD_DIRECT_MAPPED_PHYS/IO are still undefined and the functions unimplemented.) This gives modules like zfs an opportunity to use it. While here, fix the one caller of mm_md_direct_mapped_phys that ignored the return value (and make sure to call pmap_kremove/update before uvm_km_free).
1.2	22-Apr-2015	pooka	branches: 1.2.16; 1.2.18; Define rump_nativeabi_p() under arch, where one would logically expect it to be defined.
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.12.1	06-Jun-2015	skrll	Sync with HEAD
1.1.10.3	03-Dec-2017	jdolecek	update from HEAD
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file Makefile.inc was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file Makefile.inc was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file Makefile.inc was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.2.18.1	10-Jun-2019	christos	Sync with HEAD
1.2.16.1	26-Nov-2018	pgoyette	Sync with HEAD, resolve a couple of conflicts
1.2	26-Jan-2016	pooka	branches: 1.2.16; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.1	22-Apr-2015	pooka	branches: 1.1.2; Define rump_nativeabi_p() under arch, where one would logically expect it to be defined.
1.1.2.3	19-Mar-2016	skrll	Sync with HEAD
1.1.2.2	06-Jun-2015	skrll	Sync with HEAD
1.1.2.1	22-Apr-2015	skrll	file rump_generic_abi.c was added on branch nick-nhusb on 2015-06-06 14:40:29 +0000
1.2.16.2	03-Dec-2017	jdolecek	update from HEAD
1.2.16.1	26-Jan-2016	jdolecek	file rump_generic_abi.c was added on branch tls-maxphys on 2017-12-03 11:39:16 +0000
1.3	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.2	22-Apr-2015	pooka	Apparently not all ports define struct clockframe in cpu.h, so we cannot provide our definition that way. Instead, generate the struct clockframe passed to hardclock() in MD code.
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.12.2	19-Mar-2016	skrll	Sync with HEAD
1.1.12.1	06-Jun-2015	skrll	Sync with HEAD
1.1.10.3	03-Dec-2017	jdolecek	update from HEAD
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file rump_generic_cpu.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file rump_generic_cpu.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file rump_generic_cpu.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.3	27-Jan-2019	pgoyette	branches: 1.3.4; Merge the [pgoyette-compat] branch
1.2	12-Dec-2018	alnsn	Add missing RCSIDs.
1.1	15-Nov-2018	riastradh	branches: 1.1.2; Make the direct-map API always available, but fail if KASAN or rump. (Only for architectures that support it at all; on others, __HAVE_MM_MD_DIRECT_MAPPED_PHYS/IO are still undefined and the functions unimplemented.) This gives modules like zfs an opportunity to use it. While here, fix the one caller of mm_md_direct_mapped_phys that ignored the return value (and make sure to call pmap_kremove/update before uvm_km_free).
1.1.2.3	26-Dec-2018	pgoyette	Sync with HEAD, resolve a few conflicts
1.1.2.2	26-Nov-2018	pgoyette	Sync with HEAD, resolve a couple of conflicts
1.1.2.1	15-Nov-2018	pgoyette	file rump_generic_directmap.c was added on branch pgoyette-compat on 2018-11-26 01:52:51 +0000
1.3.4.2	10-Jun-2019	christos	Sync with HEAD
1.3.4.1	27-Jan-2019	christos	file rump_generic_directmap.c was added on branch phil-wifi on 2019-06-10 22:09:54 +0000
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file rump_generic_kobj.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file rump_generic_kobj.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file rump_generic_kobj.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.7	21-Aug-2022	riastradh	rump: Define pmap_resident_count, pmap_wired_count conditionally. These definitions will not be used by anything yet because on every architecture except x86 as of yeterday, pmap_resident_count and pmap_wired_count are defined as macros anyway. But if more struct pmaps are made private these definitions will get used.
1.6	21-Aug-2022	mlelstv	Add stubs for pmap_resident_count, pmap_wired_count.
1.5	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.4	17-Apr-2015	pooka	Give the kernel/local pmaps actual storage. That way friendly neighborhood macros won't go scribbling in the wrong places.
1.3	03-Apr-2015	pooka	Use RUMP_PMAP_KERNEL and RUMP_PMAP_LOCAL to denote kernel and local client pmaps, respectively.
1.2	12-Feb-2014	pooka	branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12; Minor comment massage, zero functionality massage.
1.1	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.2.12.3	19-Mar-2016	skrll	Sync with HEAD
1.2.12.2	06-Jun-2015	skrll	Sync with HEAD
1.2.12.1	06-Apr-2015	skrll	Sync with HEAD
1.2.10.3	03-Dec-2017	jdolecek	update from HEAD
1.2.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.10.1	12-Feb-2014	tls	file rump_generic_pmap.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.2.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.6.1	12-Feb-2014	yamt	file rump_generic_pmap.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.4.2	18-May-2014	rmind	sync with head
1.2.4.1	12-Feb-2014	rmind	file rump_generic_pmap.c was added on branch rmind-smpnet on 2014-05-18 17:46:18 +0000
1.7	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.6	16-Jun-2010	pooka	branches: 1.6.8; 1.6.18; 1.6.22; Reinstate the blanket pmap.h for archs which do not conform to the kernel ABI (i.e. not i386 or amd64). Due to the "half function, half macro, all noodles" nature of pmap.h, it's too entangling and too brittle to keep up with an ifdeffy MI implementation.
1.5	31-May-2010	pooka	The x86 kernel ABI depends on __cpu_simple_lock stuff being present. Since they are practically never used (only when prehistoric code uses simple_lock()), their efficiency doesn't matter that much and we can simply adapt the versions from x86 lock.h.
1.4	11-May-2010	pooka	add __HAVE_CPU_COUNTER stubs where possible (i.e. where the arch doesn't think inlines are the second compiling)
1.3	01-Jan-2009	pooka	branches: 1.3.2; 1.3.4; 1.3.8; 1.3.10; 1.3.12; Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.2	01-Jan-2009	pooka	Rename i386 and amd64 {cpu,spl}.c to rump{cpu,spl}.c to avoid name collisions with other source files in the kernel tree.
1.1	29-Dec-2008	pooka	Switch i386 away from rump/include/machine. This means that rump on i386 now uses the native kernel ABI. This in turn means that rump modules and kernel modules are binary equivalent and can be used interchangeably.
1.3.12.2	03-Jul-2010	rmind	sync with head
1.3.12.1	30-May-2010	rmind	sync with head
1.3.10.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.3.8.3	11-Aug-2010	yamt	sync with head.
1.3.8.2	04-May-2009	yamt	sync with head.
1.3.8.1	01-Jan-2009	yamt	file Makefile.inc was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.3.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.3.4.1	01-Jan-2009	skrll	file Makefile.inc was added on branch nick-hppapmap on 2009-01-19 13:20:26 +0000
1.3.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.3.2.1	01-Jan-2009	mjf	file Makefile.inc was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.6.22.1	18-May-2014	rmind	sync with head
1.6.18.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.6.8.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2	01-Jan-2009	pooka	Rename i386 and amd64 {cpu,spl}.c to rump{cpu,spl}.c to avoid name collisions with other source files in the kernel tree.
1.1	29-Dec-2008	pooka	Switch i386 away from rump/include/machine. This means that rump on i386 now uses the native kernel ABI. This in turn means that rump modules and kernel modules are binary equivalent and can be used interchangeably.
1.2	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1	11-May-2010	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.14; 1.1.24; 1.1.28; add __HAVE_CPU_COUNTER stubs where possible (i.e. where the arch doesn't think inlines are the second compiling)
1.1.28.1	18-May-2014	rmind	sync with head
1.1.24.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.14.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.1.6.1	11-May-2010	uebayasi	file cpu_counter.c was added on branch uebayasi-xip on 2010-08-17 06:48:02 +0000
1.1.4.2	11-Aug-2010	yamt	sync with head.
1.1.4.1	11-May-2010	yamt	file cpu_counter.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:07 +0000
1.1.2.2	30-May-2010	rmind	sync with head
1.1.2.1	11-May-2010	rmind	file cpu_counter.c was added on branch rmind-uvmplock on 2010-05-30 05:18:06 +0000
1.4	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.3	22-Jul-2012	joerg	branches: 1.3.2; 1.3.4; Needs pmap_write_protect to finish DBG=-g build with clang.
1.2	17-Jun-2010	pooka	branches: 1.2.2; 1.2.4; 1.2.6; 1.2.14; Give the kernel pmap a container in case some tries to access it via some pmap.h macro.
1.1	16-Jun-2010	pooka	Reinstate the blanket pmap.h for archs which do not conform to the kernel ABI (i.e. not i386 or amd64). Due to the "half function, half macro, all noodles" nature of pmap.h, it's too entangling and too brittle to keep up with an ifdeffy MI implementation.
1.2.14.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.14.1	30-Oct-2012	yamt	sync with head
1.2.6.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.2.6.1	17-Jun-2010	uebayasi	file pmap_x86.c was added on branch uebayasi-xip on 2010-08-17 06:48:02 +0000
1.2.4.2	11-Aug-2010	yamt	sync with head.
1.2.4.1	17-Jun-2010	yamt	file pmap_x86.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:07 +0000
1.2.2.2	03-Jul-2010	rmind	sync with head
1.2.2.1	17-Jun-2010	rmind	file pmap_x86.c was added on branch rmind-uvmplock on 2010-07-03 01:20:03 +0000
1.3.4.1	18-May-2014	rmind	sync with head
1.3.2.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.12	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.11	02-May-2013	pooka	branches: 1.11.4; Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.10	19-Feb-2013	martin	Stopgap fix to make rump cooperate with pserialize, may be revisited later. Patch from pooka, ok: rmind. No related regressions in a complete atf test run (which works again with this, even on non x86 SMP machines).
1.9	28-Apr-2010	pooka	branches: 1.9.8; 1.9.18; set first attached cpu as primary
1.8	27-Apr-2010	pooka	Fix multiple virtual cpu support. ... or at least on x86. CPU_INFO_FOREACH() still isn't MI, and I don't want to support 2^n different versions.
1.7	15-Oct-2009	pooka	branches: 1.7.2; 1.7.4; Give lwp usage some much-needed love: stop treating lwp0 as the all-sink and make sure each separate thread in rump has its own lwp. Happy-go-lucky callers will get scheduled a temporary lwp on entry, while true lwp connoisseurs may request a stable lwp for their purposes. Some more love may be required later down the road, but for now different threads will stepping on each others toes.
1.6	15-Oct-2009	pooka	Add initial work on a rump virtual cpu scheduler. This is necessary for kernel code which has been written to avoid MP contention by using cpu-local storage (most prominently, select and pool_cache). Instead of always assuming rump_cpu, the scheduler must now be run (and unrun) on all entry points into rump. Likewise, rumpuser unruns and re-runs the scheduler around each potentially blocking operation. As an optimization, I modified some locking primitives to try to get the lock without blocking before releasing the cpu. Also, ltsleep was modified to assume that it is never called without the biglock held and made to use the biglock as the sleep interlock. Otherwise there is just too much drama with deadlocks. If some kernel code wants to call ltsleep without the biglock, then, snif, it's no longer supported and rump and should be modified to support newstyle locks anyway.
1.5	14-Oct-2009	pooka	"rumppriv" goes back to "rump" per internal interface naming change.
1.4	14-Oct-2009	pooka	Adjust rump sources for external/internal interfaces. No functional change.
1.3	18-Mar-2009	cegger	branches: 1.3.2; Ansify function definitions w/o arguments. Generated with sed.
1.2	01-Jan-2009	pooka	branches: 1.2.2; 1.2.4; 1.2.6; Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.1	01-Jan-2009	pooka	Rename i386 and amd64 {cpu,spl}.c to rump{cpu,spl}.c to avoid name collisions with other source files in the kernel tree.
1.2.6.1	13-May-2009	jym	Sync with HEAD. Commit is split, to avoid a "too many arguments" protocol error.
1.2.4.3	28-Apr-2009	skrll	Sync with HEAD.
1.2.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.2.4.1	01-Jan-2009	skrll	file rumpcpu.c was added on branch nick-hppapmap on 2009-01-19 13:20:26 +0000
1.2.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.2.2.1	01-Jan-2009	mjf	file rumpcpu.c was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.3.2.4	11-Aug-2010	yamt	sync with head.
1.3.2.3	11-Mar-2010	yamt	sync with head
1.3.2.2	04-May-2009	yamt	sync with head.
1.3.2.1	18-Mar-2009	yamt	file rumpcpu.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.7.4.1	30-May-2010	rmind	sync with head
1.7.2.1	30-Apr-2010	uebayasi	Sync with HEAD.
1.9.18.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.9.18.2	23-Jun-2013	tls	resync from head
1.9.18.1	25-Feb-2013	tls	resync with head
1.9.8.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.11.4.1	18-May-2014	rmind	sync with head
1.3	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.2	06-Feb-2009	pooka	branches: 1.2.4; 1.2.16; 1.2.26; 1.2.30; Rip out the rwlock spl emulation code. It never did anything useful except keep my feet warm by consuming an insane amount of cpu cycles -- in rump our current "cpu" context is never interrupted & we have MULTIPROCESSOR. (itch i'm scratching: it made the networking stack 10-20% slower. this is one of the places where fast code actually matters)
1.1	01-Jan-2009	pooka	branches: 1.1.2; 1.1.4; Rename i386 and amd64 {cpu,spl}.c to rump{cpu,spl}.c to avoid name collisions with other source files in the kernel tree.
1.1.4.3	03-Mar-2009	skrll	Sync with HEAD.
1.1.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.1.4.1	01-Jan-2009	skrll	file rumpspl.c was added on branch nick-hppapmap on 2009-01-19 13:20:26 +0000
1.1.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.1.2.1	01-Jan-2009	mjf	file rumpspl.c was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.2.30.1	18-May-2014	rmind	sync with head
1.2.26.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.16.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.4.2	04-May-2009	yamt	sync with head.
1.2.4.1	06-Feb-2009	yamt	file rumpspl.c was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.3	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.2	22-Jan-2013	christos	branches: 1.2.2; use the definitions from lock.h
1.1	31-May-2010	pooka	branches: 1.1.2; 1.1.4; 1.1.6; 1.1.14; 1.1.24; The x86 kernel ABI depends on __cpu_simple_lock stuff being present. Since they are practically never used (only when prehistoric code uses simple_lock()), their efficiency doesn't matter that much and we can simply adapt the versions from x86 lock.h.
1.1.24.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.24.1	25-Feb-2013	tls	resync with head
1.1.14.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.2	17-Aug-2010	uebayasi	Sync with HEAD.
1.1.6.1	31-May-2010	uebayasi	file spinlock.c was added on branch uebayasi-xip on 2010-08-17 06:48:02 +0000
1.1.4.2	11-Aug-2010	yamt	sync with head.
1.1.4.1	31-May-2010	yamt	file spinlock.c was added on branch yamt-nfs-mp on 2010-08-11 22:55:07 +0000
1.1.2.2	03-Jul-2010	rmind	sync with head
1.1.2.1	31-May-2010	rmind	file spinlock.c was added on branch rmind-uvmplock on 2010-07-03 01:20:03 +0000
1.2.2.1	18-May-2014	rmind	sync with head
1.2	01-Jan-2009	pooka	Rename i386 and amd64 {cpu,spl}.c to rump{cpu,spl}.c to avoid name collisions with other source files in the kernel tree.
1.1	29-Dec-2008	pooka	Switch i386 away from rump/include/machine. This means that rump on i386 now uses the native kernel ABI. This in turn means that rump modules and kernel modules are binary equivalent and can be used interchangeably.
1.4	25-Apr-2021	christos	mipsn64* is native 64
1.3	22-Apr-2015	pooka	Apparently new source files need to be added to each Makefile.inc individually. Who comes up with this kind of crappy build infra?
1.2	12-Feb-2014	pooka	branches: 1.2.6; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1	14-Dec-2009	matt	branches: 1.1.4; 1.1.14; 1.1.24; 1.1.28; Make librump play with mips nicely. Define ARCH_ELFSIZE for mips to be 32. This works for N64 kernels because objcopy them to be 32bit to the bootloaders can handle them.
1.1.28.1	18-May-2014	rmind	sync with head
1.1.24.2	03-Dec-2017	jdolecek	update from HEAD
1.1.24.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.14.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.4.2	11-Mar-2010	yamt	sync with head
1.1.4.1	14-Dec-2009	yamt	file Makefile.inc was added on branch yamt-nfs-mp on 2010-03-11 15:04:38 +0000
1.2.6.1	06-Jun-2015	skrll	Sync with HEAD
1.6	22-Apr-2015	pooka	Apparently new source files need to be added to each Makefile.inc individually. Who comes up with this kind of crappy build infra?
1.5	07-Mar-2014	matt	branches: 1.5.6; Be a little more careful checking MLIBDIR
1.4	07-Mar-2014	matt	Use ARCH_ELFSIZE=32 is MLIBDIR == "powerpc"
1.3	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.2	24-Nov-2012	pgoyette	branches: 1.2.2; File is common between pp6 and ppc64 ports, so define ARCH_ELFSIZE accordingly. From christos@, resolves the latest build break
1.1	03-Jul-2011	mrg	branches: 1.1.2; 1.1.12; define ARCH_ELFSIZE=32 and add kobj_stubs.c rumpcpu_generic.c.
1.1.12.3	03-Dec-2017	jdolecek	update from HEAD
1.1.12.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.12.1	25-Feb-2013	tls	resync with head
1.1.2.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.2.1	16-Jan-2013	yamt	sync with (a bit old) head
1.2.2.1	18-May-2014	rmind	sync with head
1.5.6.1	06-Jun-2015	skrll	Sync with HEAD
1.2	22-Apr-2015	pooka	Define rump_nativeabi_p() under arch, where one would logically expect it to be defined.
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.12.1	06-Jun-2015	skrll	Sync with HEAD
1.1.10.3	03-Dec-2017	jdolecek	update from HEAD
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file Makefile.inc was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file Makefile.inc was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file Makefile.inc was added on branch rmind-smpnet on 2014-05-18 17:46:19 +0000
1.2	26-Jan-2016	pooka	branches: 1.2.16; Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.1	22-Apr-2015	pooka	branches: 1.1.2; Define rump_nativeabi_p() under arch, where one would logically expect it to be defined.
1.1.2.3	19-Mar-2016	skrll	Sync with HEAD
1.1.2.2	06-Jun-2015	skrll	Sync with HEAD
1.1.2.1	22-Apr-2015	skrll	file rump_x86_abi.c was added on branch nick-nhusb on 2015-06-06 14:40:29 +0000
1.2.16.2	03-Dec-2017	jdolecek	update from HEAD
1.2.16.1	26-Jan-2016	jdolecek	file rump_x86_abi.c was added on branch tls-maxphys on 2017-12-03 11:39:16 +0000
1.5	21-Aug-2022	riastradh	rump/x86: Need x86/cpufunc.h for declaration of wbinvd.
1.4	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.3	22-Apr-2015	pooka	Apparently not all ports define struct clockframe in cpu.h, so we cannot provide our definition that way. Instead, generate the struct clockframe passed to hardclock() in MD code.
1.2	15-Mar-2014	pooka	branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12; Allow compile-time optimizations to curlwp. This can have a pretty staggering impact on performance. When running sendto() in a loop, the improvement is 200k more calls per second with an inlined __thread curlwp as opposed to the default. In other words, it shaves off hundreds of CPU cycles per call (~20%). Even just eliminating the x86_curlwp() call in favor of an inline gives an improvement of 60k calls per second.
1.1	12-Feb-2014	pooka	Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.2.12.2	19-Mar-2016	skrll	Sync with HEAD
1.2.12.1	06-Jun-2015	skrll	Sync with HEAD
1.2.10.3	03-Dec-2017	jdolecek	update from HEAD
1.2.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.10.1	15-Mar-2014	tls	file rump_x86_cpu.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.2.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.6.1	15-Mar-2014	yamt	file rump_x86_cpu.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.2.4.2	18-May-2014	rmind	sync with head
1.2.4.1	15-Mar-2014	rmind	file rump_x86_cpu.c was added on branch rmind-smpnet on 2014-05-18 17:46:19 +0000
1.2	15-Jun-2020	msaitoh	Serialize rdtsc using with lfence, mfence or cpuid to read TSC more precisely. x86/x86/tsc.c rev. 1.67 reduced cache problem and got big improvement, but it still has room. I measured the effect of lfence, mfence, cpuid and rdtscp. The impact to TSC skew and/or drift is: AMD: mfence > rdtscp > cpuid > lfence-serialize > lfence = nomodify Intel: lfence > rdtscp > cpuid > nomodify So, mfence is the best on AMD and lfence is the best on Intel. If it has no SSE2, we can use cpuid. NOTE: - An AMD's document says DE_CFG_LFENCE_SERIALIZE bit can be used for serializing, but it's not so good. - On Intel i386(not amd64), it seems the improvement is very little. - rdtscp instruct can be used as serializing instruction + rdtsc, but it's not good as [lm]fence. Both Intel and AMD's document say that the latency of rdtscp is bigger than rdtsc, so I suspect the difference of the result comes from it.
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file rump_x86_cpu_counter.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file rump_x86_cpu_counter.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file rump_x86_cpu_counter.c was added on branch rmind-smpnet on 2014-05-18 17:46:19 +0000
1.5	21-Aug-2022	riastradh	rump/x86: Add stubs for pmap_resident_count, pmap_wired_count. These are no longer static inlines, now that struct pmap is private.
1.4	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.3	17-Apr-2015	pooka	Give the kernel/local pmaps actual storage. That way friendly neighborhood macros won't go scribbling in the wrong places.
1.2	03-Apr-2015	pooka	Use RUMP_PMAP_KERNEL and RUMP_PMAP_LOCAL to denote kernel and local client pmaps, respectively.
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.12.3	19-Mar-2016	skrll	Sync with HEAD
1.1.12.2	06-Jun-2015	skrll	Sync with HEAD
1.1.12.1	06-Apr-2015	skrll	Sync with HEAD
1.1.10.3	03-Dec-2017	jdolecek	update from HEAD
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file rump_x86_pmap.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file rump_x86_pmap.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file rump_x86_pmap.c was added on branch rmind-smpnet on 2014-05-18 17:46:19 +0000
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file rump_x86_spinlock.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file rump_x86_spinlock.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file rump_x86_spinlock.c was added on branch rmind-smpnet on 2014-05-18 17:46:19 +0000
1.2	26-Jan-2016	pooka	Put the kernelside rump kernel headers into <rump-sys> instead of sprinkling them around the faction directories. Avoids having to add a CPPFLAGS (or several) to pretty much every component Makefile. Leave compat headers around in the old locations. The commit changes some autogenerated files, but I'll fix the generators shortly and regen.
1.1	12-Feb-2014	pooka	branches: 1.1.4; 1.1.6; 1.1.10; 1.1.12; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.1.12.1	19-Mar-2016	skrll	Sync with HEAD
1.1.10.3	03-Dec-2017	jdolecek	update from HEAD
1.1.10.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.10.1	12-Feb-2014	tls	file rump_x86_spl.c was added on branch tls-maxphys on 2014-08-20 00:04:41 +0000
1.1.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.6.1	12-Feb-2014	yamt	file rump_x86_spl.c was added on branch yamt-pagecache on 2014-05-22 11:41:15 +0000
1.1.4.2	18-May-2014	rmind	sync with head
1.1.4.1	12-Feb-2014	rmind	file rump_x86_spl.c was added on branch rmind-smpnet on 2014-05-18 17:46:19 +0000
1.9	15-Nov-2018	riastradh	Make the direct-map API always available, but fail if KASAN or rump. (Only for architectures that support it at all; on others, __HAVE_MM_MD_DIRECT_MAPPED_PHYS/IO are still undefined and the functions unimplemented.) This gives modules like zfs an opportunity to use it. While here, fix the one caller of mm_md_direct_mapped_phys that ignored the return value (and make sure to call pmap_kremove/update before uvm_km_free).
1.8	12-Feb-2014	pooka	branches: 1.8.28; 1.8.30; Rototill a bit, and attempt to disguise it as non-gratuitous. Add arch/generic and move non-x86 files from rumpkern/ there. Also, move files from arch/i386 to arch/x86, and make both i386 and x86_64 use those. This clarifies the situation with what is MD vs. MI code. renames: rumpcpu_generic,kobj_stubs,pmap_stubs => arch/generic/rump_generic_$x arch/i386/* => arch/x86/rump_x86_$x (for those who forget, x86 requires MD code because rump kernels use the same ABI as kernel modules)
1.7	16-Jun-2010	pooka	branches: 1.7.8; 1.7.18; 1.7.22; Reinstate the blanket pmap.h for archs which do not conform to the kernel ABI (i.e. not i386 or amd64). Due to the "half function, half macro, all noodles" nature of pmap.h, it's too entangling and too brittle to keep up with an ifdeffy MI implementation.
1.6	31-May-2010	pooka	The x86 kernel ABI depends on __cpu_simple_lock stuff being present. Since they are practically never used (only when prehistoric code uses simple_lock()), their efficiency doesn't matter that much and we can simply adapt the versions from x86 lock.h.
1.5	11-May-2010	pooka	add __HAVE_CPU_COUNTER stubs where possible (i.e. where the arch doesn't think inlines are the second compiling)
1.4	01-Jan-2009	pooka	branches: 1.4.2; 1.4.4; 1.4.8; 1.4.10; 1.4.12; add missing "arch/" as noted by a few people
1.3	01-Jan-2009	pooka	Define MODULAR for rump core components. This enables module loading via the kernel module framework (instead of dlopen()). For now it only works on amd64 and i386, but for the rest it should just be a matter of including the relevant kobj_machdep.c modules from the kernel sources.
1.2	01-Jan-2009	pooka	Rename i386 and amd64 {cpu,spl}.c to rump{cpu,spl}.c to avoid name collisions with other source files in the kernel tree.
1.1	30-Dec-2008	pooka	Switch amd64 rumps to the kernel ABI.
1.4.12.2	03-Jul-2010	rmind	sync with head
1.4.12.1	30-May-2010	rmind	sync with head
1.4.10.1	17-Aug-2010	uebayasi	Sync with HEAD.
1.4.8.3	11-Aug-2010	yamt	sync with head.
1.4.8.2	04-May-2009	yamt	sync with head.
1.4.8.1	01-Jan-2009	yamt	file Makefile.inc was added on branch yamt-nfs-mp on 2009-05-04 08:14:30 +0000
1.4.4.2	19-Jan-2009	skrll	Sync with HEAD.
1.4.4.1	01-Jan-2009	skrll	file Makefile.inc was added on branch nick-hppapmap on 2009-01-19 13:20:26 +0000
1.4.2.2	17-Jan-2009	mjf	Sync with HEAD.
1.4.2.1	01-Jan-2009	mjf	file Makefile.inc was added on branch mjf-devfs2 on 2009-01-17 13:29:36 +0000
1.7.22.1	18-May-2014	rmind	sync with head
1.7.18.1	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.7.8.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.8.30.1	10-Jun-2019	christos	Sync with HEAD
1.8.28.1	26-Nov-2018	pgoyette	Sync with HEAD, resolve a couple of conflicts

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