| History log of /src/sys/arch/i386/include/pte.h |
| Revision | | Date | Author | Comments |
| 1.36 |
| 21-Aug-2022 |
riastradh | x86 Move VA_SIGN_POS/NEG to machine/pte.h.
It's used by pl[1-4]_pi, also defined in machine/pte.h, and used in
libkvm without pmap_private.h.
|
| 1.35 |
| 20-Aug-2022 |
riastradh | x86: Forbid using x86/pte.h directly; use machine/pte.h.
machine/pte.h already used outside sys/arch, so let's make it the
primary thing and make sure to use x86/pte.h only as a subroutine.
|
| 1.34 |
| 20-Aug-2022 |
riastradh | amd64/pte.h, i386/pte.h: Need sys/stdint.h for uintN_t.
|
| 1.33 |
| 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
|
| 1.32 |
| 25-Apr-2020 |
maxv | Switch to the new PTE naming. The old naming is now unused, remove it.
|
| 1.31 |
| 09-Mar-2019 |
maxv | branches: 1.31.10;
Start replacing the x86 PTE bits.
|
| 1.30 |
| 07-Mar-2019 |
maxv | Introduce a new set of PTE bits, with a different naming convention.
PG_V -> PTE_P /* Present */
PG_RW -> PTE_W /* Write */
PG_u -> PTE_U /* User */
PG_WT -> PTE_PWT /* Write-Through */
PG_N -> PTE_PCD /* Cache-Disable */
PG_U -> PTE_A /* Accessed */
PG_M -> PTE_D /* Dirty */
PG_PAT -> PTE_PAT /* PAT on 4KB Pages */
PG_PS -> PTE_PS /* Large Page Size */
PG_G -> PTE_G /* Global Translation */
PG_AVAIL1 -> PTE_AVL1 /* Ignored by Hardware */
PG_AVAIL2 -> PTE_AVL2 /* Ignored by Hardware */
PG_AVAIL3 -> PTE_AVL3 /* Ignored by Hardware */
PG_LGPAT -> PTE_LGPAT /* PAT on Large Pages */
PG_NX -> PTE_NX /* No Execute */
Until now we were using "PG_BIT". The "BIT" part of the naming did not
follow the x86 naming convention in the spec, and was very confusing. We
don't want the "PG_" part of it either, because UVM has similar flags
(ie PG_BUSY).
|
| 1.29 |
| 07-Mar-2019 |
maxv | Drop PG_RO, PG_KR and PG_PROT, they are useless and create confusion.
|
| 1.28 |
| 07-Mar-2019 |
maxv | Style, and remove useless comments.
|
| 1.27 |
| 01-Feb-2011 |
chuck | branches: 1.27.56;
udpate license clauses on my code to match the new-style BSD licenses.
based on diff that rmind@ sent me.
no functional change with this commit.
|
| 1.26 |
| 02-Oct-2010 |
jym | branches: 1.26.2; 1.26.4;
Update the comment for PG_PS when used with PAE.
|
| 1.25 |
| 14-Sep-2010 |
jym | Add ULL suffix to PG_NX when it is defined.
|
| 1.24 |
| 06-Jul-2010 |
cegger | Turn PMAP_NOCACHE into MI flag.
Add MI flags PMAP_WRITE_COMBINE, PMAP_WRITE_BACK, PMAP_NOCACHE_OVR.
Update pmap(9) manpage.
hppa: Remove MD PMAP_NOCACHE flag as it exists as MI flag
mips: Rename MD PMAP_NOCACHE to PGC_NOCACHE.
x86: Implement new MI flags using Page-Attribute Tables.
x86: Implement BUS_SPACE_MAP_PREFETCHABLE.
Patch presented on tech-kern@:
http://mail-index.netbsd.org/tech-kern/2010/06/30/msg008458.html
No comments on this last version.
|
| 1.23 |
| 04-May-2010 |
jym | Enable the NX bit feature for Xen i386pae and amd64 kernels.
Tested with Xen 3.1 and Xen 3.3, dom0 and domU, by bouyer@ and jym@.
Ok bouyer@.
|
| 1.22 |
| 06-Apr-2010 |
jld | Fix typos in PAE comment.
|
| 1.21 |
| 26-Feb-2010 |
jym | branches: 1.21.2;
Fixes regarding paddr_t/pd_entry_t types in MD x86 code, exposed by PAE:
- NBPD_* macros are set to the types that better match their architecture
(UL for i386 and amd64, ULL for i386 PAE) - will revisit when paddr_t is
set to 64 bits for i386 non-PAE.
- type fixes in printf/printk messages (Use PRIxPADDR when printing paddr_t
values, instead of %lx - paddr_t/pd_entry_t being 64 bits with PAE)
- remove casts that are no more needed now that Xen2 support has been dropped
Some fixes are from jmorse@ patches for PAE.
Compile + tested for i386 GENERIC and XEN3 kernels. Only compile tested for
amd64.
Reviewed by bouyer@.
See also http://mail-index.netbsd.org/tech-kern/2010/02/22/msg007373.html
|
| 1.20 |
| 17-Nov-2009 |
dyoung | branches: 1.20.2;
Fix spelling in comments, s/extention/extension/.
|
| 1.19 |
| 15-Apr-2009 |
cegger | No Execute bit is available in PAE-paging mode.
However to use it, NXE bit in EFER register must be set.
|
| 1.18 |
| 21-Dec-2008 |
ad | branches: 1.18.2;
Fix a comment.
|
| 1.17 |
| 23-Jan-2008 |
bouyer | branches: 1.17.6; 1.17.10; 1.17.18;
Merge the bouyer-xeni386 branch. This brings in PAE support to NetBSD xeni386
(domU only). PAE support is enabled by 'options PAE', see the new XEN3PAE_DOMU
and INSTALL_XEN3PAE_DOMU kernel config files.
See the comments in arch/i386/include/{pte.h,pmap.h} to see how it works.
In short, we still handle it as a 2-level MMU, with the second level page
directory being 4 pages in size. pmap switching is done by switching the
L2 pages in the L3 entries, instead of loading %cr3. This is almost required
by Xen, which handle the last L2 page (the one mapping 0xc0000000 - 0xffffffff)
in a very special way. But this approach should also work for native PAE
support if ever supported (in fact, the pmap should almost suport native
PAE, what's missing is bootstrap code in locore.S).
|
| 1.16 |
| 18-Oct-2007 |
yamt | branches: 1.16.2; 1.16.8;
merge yamt-x86pmap branch.
- reduce differences between amd64 and i386. notably, share pmap.c
between them. it makes several i386 pmap improvements available to
amd64, including tlb shootdown reduction and bug fixes from Stephan Uphoff.
- implement deferred pmap switching for amd64.
- remove LARGEPAGES option. always use large pages if available.
also, make it work on amd64.
|
| 1.15 |
| 26-Dec-2005 |
perry | branches: 1.15.30; 1.15.48; 1.15.50; 1.15.52; 1.15.54;
u_intN_t -> uintN_t
|
| 1.14 |
| 24-Aug-2003 |
chs | branches: 1.14.16;
add support for non-executable mappings (where the hardware allows this)
and make the stack and heap non-executable by default. the changes
fall into two basic catagories:
- pmap and trap-handler changes. these are all MD:
= alpha: we already track per-page execute permission with the (software)
PG_EXEC bit, so just have the trap handler pay attention to it.
= i386: use a new GDT segment for %cs for processes that have no
executable mappings above a certain threshold (currently the
bottom of the stack). track per-page execute permission with
the last unused PTE bit.
= powerpc/ibm4xx: just use the hardware exec bit.
= powerpc/oea: we already track per-page exec bits, but the hardware only
implements non-exec mappings at the segment level. so track the
number of executable mappings in each segment and turn on the no-exec
segment bit iff the count is 0. adjust the trap handler to deal.
= sparc (sun4m): fix our use of the hardware protection bits.
fix the trap handler to recognize text faults.
= sparc64: split the existing unified TSB into data and instruction TSBs,
and only load TTEs into the appropriate TSB(s) for the permissions.
fix the trap handler to check for execute permission.
= not yet implemented: amd64, hppa, sh5
- changes in all the emulations that put a signal trampoline on the stack.
instead, we now put the trampoline into a uvm_aobj and map that into
the process separately.
originally from openbsd, adapted for netbsd by me.
|
| 1.13 |
| 02-Apr-2003 |
thorpej | branches: 1.13.2;
Use PAGE_SIZE rather than NBPG.
|
| 1.12 |
| 05-Sep-2000 |
thorpej | branches: 1.12.2;
Define PG_LGFRAME, which is the page frame mask for large (4MB) pages.
|
| 1.11 |
| 06-Feb-1998 |
thorpej | branches: 1.11.14;
Allow userland access to pd_entry_t and pt_entry_t, like the old pte.h
used to do. Also, RCS ID police.
|
| 1.10 |
| 06-Feb-1998 |
mrg | add the i386 MD portions for UVM.
|
| 1.9 |
| 01-Feb-1996 |
mycroft | LOCORE -> _LOCORE
|
| 1.8 |
| 28-Mar-1995 |
jtc | KERNEL -> _KERNEL
|
| 1.7 |
| 27-Oct-1994 |
cgd | new RCS ID format.
|
| 1.6 |
| 09-Oct-1994 |
mycroft | Nuke dirty().
|
| 1.5 |
| 15-Aug-1994 |
mycroft | Eliminate struct pte and struct pde.
|
| 1.4 |
| 14-Dec-1993 |
mycroft | branches: 1.4.2; 1.4.4;
Fold in most of the magnum vm changes.
|
| 1.3 |
| 27-Jun-1993 |
andrew | branches: 1.3.4;
Re-entrancy protection.
|
| 1.2 |
| 22-May-1993 |
cgd | add rcsids to everything and clean up headers
|
| 1.1 |
| 21-Mar-1993 |
cgd | branches: 1.1.1;
Initial revision
|
| 1.1.1.1 |
| 21-Mar-1993 |
cgd | initial import of 386bsd-0.1 sources
|
| 1.3.4.5 |
| 13-Dec-1993 |
mycroft | Stylistic changes.
|
| 1.3.4.4 |
| 09-Nov-1993 |
mycroft | Rearrange bits to match hardware.
|
| 1.3.4.3 |
| 09-Nov-1993 |
mycroft | Change comment on PG_W to reflect that it is in fact used.
|
| 1.3.4.2 |
| 08-Nov-1993 |
mycroft | Garbage collect some constants, and the entire 286 nonsense. (Like we even
get to start() on a 286? NOT!)
|
| 1.3.4.1 |
| 15-Oct-1993 |
mycroft | Major cleanup of include files and constants.
|
| 1.4.4.2 |
| 11-Oct-1994 |
mycroft | Update from trunk.
|
| 1.4.4.1 |
| 15-Aug-1994 |
mycroft | update from trunk
|
| 1.4.2.2 |
| 14-Dec-1993 |
mycroft | Fold in most of the magnum vm changes.
|
| 1.4.2.1 |
| 14-Dec-1993 |
mycroft | file pte.h was added on branch magnum on 1993-12-14 05:31:41 +0000
|
| 1.11.14.1 |
| 20-Nov-2000 |
bouyer | Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.
|
| 1.12.2.2 |
| 05-Sep-2000 |
thorpej | Define PG_LGFRAME, which is the page frame mask for large (4MB) pages.
|
| 1.12.2.1 |
| 05-Sep-2000 |
thorpej | file pte.h was added on branch sommerfeld_i386mp_1 on 2000-09-05 21:52:17 +0000
|
| 1.13.2.3 |
| 21-Sep-2004 |
skrll | Fix the sync with head I botched.
|
| 1.13.2.2 |
| 18-Sep-2004 |
skrll | Sync with HEAD.
|
| 1.13.2.1 |
| 03-Aug-2004 |
skrll | Sync with HEAD
|
| 1.14.16.3 |
| 04-Feb-2008 |
yamt | sync with head.
|
| 1.14.16.2 |
| 27-Oct-2007 |
yamt | sync with head.
|
| 1.14.16.1 |
| 21-Jun-2006 |
yamt | sync with head.
|
| 1.15.54.1 |
| 25-Oct-2007 |
bouyer | Sync with HEAD.
|
| 1.15.52.1 |
| 23-Sep-2007 |
yamt | - sync with amd64.
- pmap_alloc_level: remove fast call special case.
- tweak some printf to work for both of LP64 and LP32.
- remove machdep.nkpde sysctl.
- remove automatic adjustment of nkpde for now. will revisit later.
|
| 1.15.50.2 |
| 23-Mar-2008 |
matt | sync with HEAD
|
| 1.15.50.1 |
| 06-Nov-2007 |
matt | sync with HEAD
|
| 1.15.48.1 |
| 26-Oct-2007 |
joerg | Sync with HEAD.
Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.
|
| 1.15.30.1 |
| 23-Oct-2007 |
ad | Sync with head.
|
| 1.16.8.3 |
| 17-Jan-2008 |
bouyer | - Fix L2_SLOT_APTE value (not sure how I got this value but it was definitively
wrong)
- Use global variable for the PAE L3 page adresses, so that pmap.c can get it
from the bootstrap code
- Extent the size of our virtual PDP from 3 to 4 pages, so that pmap->pm_pdir[]
is contigous for the whole VA range. The last page is a shadow of
the kernel's real PDP (L3[3]).
- make pm_pdirpa an array of 4 paddr_t if using PAE. introduce a
pmap_pdirpa macro to get the physical address of a given PD entry.
- fix pmap_map_pte
The kernel now boots single-user. fsck will cause a kernel fault in
pmap_pdes_invalid() on exit.
|
| 1.16.8.2 |
| 13-Jan-2008 |
bouyer | Update system macros for PAE. Because the L3 page directory has only 4 entries,
and because of the way Xen handles it, it's better to have it has static as
possible. So we claim to have only 2 levels, with level 2 being a
"super" PD of 4 pages. pmap switches will be handled by changing the
L3 entries instead of %cr3. Only the first 3 entries will have to be changed,
the last one mapping KVA space only.
|
| 1.16.8.1 |
| 13-Jan-2008 |
bouyer | Work in progress on xeni386 PAE support:
Make xeni386 build with a 64bit paddr_t. For this vaddr_t vs paddr_t vs
pointers usages had to be clarified.
If 'options PAE' is present in a Xen3 kernel, switch paddr_t, pd_entry_t
and pt_entry_t to 64bits, and add the PAE entry in the __xen_guest ELF section.
|
| 1.16.2.1 |
| 18-Feb-2008 |
mjf | Sync with HEAD.
|
| 1.17.18.2 |
| 28-Apr-2009 |
skrll | Sync with HEAD.
|
| 1.17.18.1 |
| 19-Jan-2009 |
skrll | Sync with HEAD.
|
| 1.17.10.4 |
| 09-Oct-2010 |
yamt | sync with head
|
| 1.17.10.3 |
| 11-Aug-2010 |
yamt | sync with head.
|
| 1.17.10.2 |
| 11-Mar-2010 |
yamt | sync with head
|
| 1.17.10.1 |
| 04-May-2009 |
yamt | sync with head.
|
| 1.17.6.1 |
| 17-Jan-2009 |
mjf | Sync with HEAD.
|
| 1.18.2.4 |
| 28-Mar-2011 |
jym | Cure sync hiccups. Code with compile errors is not really useful, heh.
|
| 1.18.2.3 |
| 28-Mar-2011 |
jym | Sync with HEAD. TODO before merge:
- shortcut for suspend code in sysmon, when powerd(8) is not running.
Borrow ``xs_watch'' thread context?
- bug hunting in xbd + xennet resume. Rings are currently thrashed upon
resume, so current implementation force flush them on suspend. It's not
really needed.
|
| 1.18.2.2 |
| 01-Nov-2009 |
jym | Sync with HEAD.
|
| 1.18.2.1 |
| 13-May-2009 |
jym | Sync with HEAD.
Commit is split, to avoid a "too many arguments" protocol error.
|
| 1.20.2.3 |
| 22-Oct-2010 |
uebayasi | Sync with HEAD (-D20101022).
|
| 1.20.2.2 |
| 17-Aug-2010 |
uebayasi | Sync with HEAD.
|
| 1.20.2.1 |
| 30-Apr-2010 |
uebayasi | Sync with HEAD.
|
| 1.21.2.2 |
| 05-Mar-2011 |
rmind | sync with head
|
| 1.21.2.1 |
| 30-May-2010 |
rmind | sync with head
|
| 1.26.4.1 |
| 08-Feb-2011 |
bouyer | Sync with HEAD
|
| 1.26.2.1 |
| 06-Jun-2011 |
jruoho | Sync with HEAD.
|
| 1.27.56.1 |
| 10-Jun-2019 |
christos | Sync with HEAD
|
| 1.31.10.1 |
| 25-Apr-2020 |
bouyer | Sync with bouyer-xenpvh-base2 (HEAD)
|
