* [PATCHv2 0/4] qemu: cirrus reset-related fixes
@ 2009-10-08 15:54 ` Michael S. Tsirkin
0 siblings, 0 replies; 2+ messages in thread
From: Michael S. Tsirkin @ 2009-10-08 15:54 UTC (permalink / raw)
To: Avi Kivity; +Cc: Anthony Liguori, qemu-devel@nongnu.org, kvm-devel
On Wed, Oct 07, 2009 at 10:20:19AM +0200, Avi Kivity wrote:
>> Reset BARs and a couple of other registers on bus reset, as per PCI
>> spec.
>>
>
> This commit breaks Windows XP restart. After a restart Windows switches
> from 800x600 cirrus logic vga to 640x480 standard vga.
Reposting fom qemu tree now.
So I just sent patches for pcbios and seabios to fix this. Once
applied, reset works fine. Further, we can also fix PCI incompliancy in
cirrus, disabling memory and i/o on reset.
To apply these patches:
- apply pcbios and seabios patches
- generate binaries and commit
- apply this patchset
Michael S. Tsirkin (4):
qemu: update pcbios to enable i/o for cirrus
qemu: update seabios to enable i/o for cirrus
qemu: make cirrus init value pci spec compliant
qemu: cleanup unused macros in cirrus
hw/cirrus_vga.c | 38 +-------------------------------------
roms/pcbios | 2 +-
roms/seabios | 2 +-
3 files changed, 3 insertions(+), 39 deletions(-)
--
MST
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Qemu-devel] [PATCHv2 0/4] qemu: cirrus reset-related fixes
@ 2009-10-08 15:54 ` Michael S. Tsirkin
0 siblings, 0 replies; 2+ messages in thread
From: Michael S. Tsirkin @ 2009-10-08 15:54 UTC (permalink / raw)
To: Avi Kivity; +Cc: Anthony Liguori, qemu-devel@nongnu.org, kvm-devel
On Wed, Oct 07, 2009 at 10:20:19AM +0200, Avi Kivity wrote:
>> Reset BARs and a couple of other registers on bus reset, as per PCI
>> spec.
>>
>
> This commit breaks Windows XP restart. After a restart Windows switches
> from 800x600 cirrus logic vga to 640x480 standard vga.
Reposting fom qemu tree now.
So I just sent patches for pcbios and seabios to fix this. Once
applied, reset works fine. Further, we can also fix PCI incompliancy in
cirrus, disabling memory and i/o on reset.
To apply these patches:
- apply pcbios and seabios patches
- generate binaries and commit
- apply this patchset
Michael S. Tsirkin (4):
qemu: update pcbios to enable i/o for cirrus
qemu: update seabios to enable i/o for cirrus
qemu: make cirrus init value pci spec compliant
qemu: cleanup unused macros in cirrus
hw/cirrus_vga.c | 38 +-------------------------------------
roms/pcbios | 2 +-
roms/seabios | 2 +-
3 files changed, 3 insertions(+), 39 deletions(-)
--
MST
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2009-10-08 15:56 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
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2009-10-08 15:54 [PATCHv2 0/4] qemu: cirrus reset-related fixes Michael S. Tsirkin
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