| History log of /src/sys/arch/xen/include/xen_shm.h |
| Revision | | Date | Author | Comments |
| 1.12 |
| 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
|
| 1.11 |
| 19-Apr-2020 |
jdolecek | change interface for xen_shm_map() so that caller always supplies the VA,
it now fails only if the Xen hypercall fails, in which case the failure
is final
change xbdback to pre-allocate KVA on xbdback attach (and free on detach),
so it has always KVA to map the request pages
remove no longer needed KVA allocation failure handling
|
| 1.10 |
| 08-Jan-2019 |
jdolecek | branches: 1.10.10;
remove explicit <machine/param.h> include, code including this already includes
<sys/param.h>
|
| 1.9 |
| 19-Oct-2009 |
bouyer | branches: 1.9.62; 1.9.64;
Remove closes 3 & 4 from my licence. Lots of thanks to Soren Jacobsen
for the booring work !
|
| 1.8 |
| 29-Jul-2009 |
cegger | remove Xen2 support.
ok bouyer@
|
| 1.7 |
| 25-Jun-2006 |
bouyer | branches: 1.7.62; 1.7.76;
Allow xen_shm_map() to map multiple grants in a contigous virtual address
space.
While here garbage-collect unused xen_shm_vaddr2ma()
|
| 1.6 |
| 25-May-2006 |
bouyer | branches: 1.6.2;
Convert xen_shm_map() and xen_shm_unmap() to the Xen3 grant table
interface.
|
| 1.5 |
| 11-Dec-2005 |
christos | branches: 1.5.4; 1.5.6; 1.5.8; 1.5.14;
merge ktrace-lwp.
|
| 1.4 |
| 17-Jul-2005 |
tls | Improvements to xbdback (the domain 0 driver that provides "xbd" virtual
disks to other domains) from Jed Davis, <jld@panix.com>:
* Issue multiple requests when necessary rather than
assuming that arbitrary requests can be mapped into single
contiguous virtual address ranges.
* Don't assume that all data for a request is consecutive
in memory. With some client OSes, it's not.
The above two changes fix data corruption issues with Linux
clients with certain filesystem block sizes.
* Gracefully handle memory or pool allocation failures after
beginning to handle a request from the ring.
* Merge contiguous requests to avoid the "64K turns into 44K + 20K
and doubles the transactions per second at the disk" problem
caused by the 11-page limit caused by the structure of Xen
ring entries. This causes a very slight performance decrease
for sequential 64K I/O if the disk is not already saturated with
requests (about 1%) but halves the transactions per second we
hit the disk with -- or better. It even compensates for bizarre
Linux behaviour like breaking long requests up into 5.5K pieces.
* Probably some stuff I forgot to mention.
Disk throughput (though not latency) is now much, much closer to the
"raw hardware" case than it was before.
|
| 1.3 |
| 16-Apr-2005 |
yamt | branches: 1.3.2; 1.3.4;
s/foreing/foreign/g
ok'ed by Manuel Bouyer.
|
| 1.2 |
| 09-Mar-2005 |
bouyer | branches: 1.2.2; 1.2.4; 1.2.6;
Merge the bouyer-xen2 branch. This add supports for the Xen 2.0 virtual
machine kernel (both privileged and non-privileged domains), and remove support
for the old xen 1.2.
|
| 1.1 |
| 16-Feb-2005 |
bouyer | branches: 1.1.2;
file xen_shm.h was initially added on branch bouyer-xen2.
|
| 1.1.2.2 |
| 08-Mar-2005 |
bouyer | Improve ressource shortage recovery: if xen_shm_map() fails, register a
callback wich will retry the I/O when xen_shm_unmap() is called.
|
| 1.1.2.1 |
| 16-Feb-2005 |
bouyer | Support functions to map/unmap guest's memory into our kernel VM space.
This will be used by the block and network back-end.
The caller provide a list of machine address pages, and we return the
address virtual address they've been mapped to. These mapping are not
registered to the pmap (we don't have physical addresses for these pages),
so change bus_dma(9) to handle these mappings as well.
|
| 1.2.6.3 |
| 10-Nov-2005 |
skrll | Sync with HEAD. Here we go again...
|
| 1.2.6.2 |
| 01-Apr-2005 |
skrll | Sync with HEAD.
|
| 1.2.6.1 |
| 09-Mar-2005 |
skrll | file xen_shm.h was added on branch ktrace-lwp on 2005-04-01 14:29:10 +0000
|
| 1.2.4.2 |
| 19-Mar-2005 |
yamt | sync with head. xen and whitespace. xen part is not finished.
|
| 1.2.4.1 |
| 09-Mar-2005 |
yamt | file xen_shm.h was added on branch yamt-km on 2005-03-19 08:33:26 +0000
|
| 1.2.2.2 |
| 15-Aug-2005 |
tron | Pull up revision 1.4 (requested by tls in ticket #656):
Improvements to xbdback (the domain 0 driver that provides "xbd" virtual
disks to other domains) from Jed Davis, <jld@panix.com>:
* Issue multiple requests when necessary rather than
assuming that arbitrary requests can be mapped into single
contiguous virtual address ranges.
* Don't assume that all data for a request is consecutive
in memory. With some client OSes, it's not.
The above two changes fix data corruption issues with Linux
clients with certain filesystem block sizes.
* Gracefully handle memory or pool allocation failures after
beginning to handle a request from the ring.
* Merge contiguous requests to avoid the "64K turns into 44K + 20K
and doubles the transactions per second at the disk" problem
caused by the 11-page limit caused by the structure of Xen
ring entries. This causes a very slight performance decrease
for sequential 64K I/O if the disk is not already saturated with
requests (about 1%) but halves the transactions per second we
hit the disk with -- or better. It even compensates for bizarre
Linux behaviour like breaking long requests up into 5.5K pieces.
* Probably some stuff I forgot to mention.
Disk throughput (though not latency) is now much, much closer to the
"raw hardware" case than it was before.
|
| 1.2.2.1 |
| 21-Apr-2005 |
tron | Pull up revision 1.3 (requested by yamt in ticket #173):
s/foreing/foreign/g
ok'ed by Manuel Bouyer.
|
| 1.3.4.2 |
| 30-Dec-2006 |
yamt | sync with head.
|
| 1.3.4.1 |
| 21-Jun-2006 |
yamt | sync with head.
|
| 1.3.2.2 |
| 29-Apr-2005 |
kent | sync with -current
|
| 1.3.2.1 |
| 16-Apr-2005 |
kent | file xen_shm.h was added on branch kent-audio2 on 2005-04-29 11:28:29 +0000
|
| 1.5.14.1 |
| 19-Jun-2006 |
chap | Sync with head.
|
| 1.5.8.1 |
| 26-Jun-2006 |
yamt | sync with head.
|
| 1.5.6.1 |
| 01-Jun-2006 |
kardel | Sync with head.
|
| 1.5.4.1 |
| 09-Sep-2006 |
rpaulo | sync with head
|
| 1.6.2.1 |
| 13-Jul-2006 |
gdamore | Merge from HEAD.
|
| 1.7.76.1 |
| 01-Nov-2009 |
jym | Sync with HEAD.
|
| 1.7.62.2 |
| 11-Mar-2010 |
yamt | sync with head
|
| 1.7.62.1 |
| 19-Aug-2009 |
yamt | sync with head.
|
| 1.9.64.2 |
| 21-Apr-2020 |
martin | Sync with HEAD
|
| 1.9.64.1 |
| 10-Jun-2019 |
christos | Sync with HEAD
|
| 1.9.62.1 |
| 18-Jan-2019 |
pgoyette | Synch with HEAD
|
| 1.10.10.1 |
| 20-Apr-2020 |
bouyer | Sync with HEAD
|
