Michael S. Tsirkin wrote:
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.

So I think this is a bios bug. Patchset fixing this applied.

So, what's the best way to propagate the fixes upstream?
Avi, Anthony, please advise.

Avi, after applying this, you need to generate a new bios binary.

Anthony, qemu keeps bios binaries in source tree.
I can't post a patch changing these, can I?
Only people with git access can change them.

BTW, can't we keep the sources around the like qemu-kvm does?
It would be best if pc-bios used git, then we would
include a submodule, as it is we can set up a git-cvs
mirror at qemu site, and then include a submodule.
Makes sense?

This is exactly what we do.  Look at roms/pc-bios.

--
Regards,

Anthony Liguori

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