windows guest doesn't boot with 'vga' video model type

[Jamie Strandboge]

Today I tried to boot an old Windows 7 vm. I am not sure the last time I booted it (probably not the whole 12.04 cycle). The domain xml had the following:
    <video>
      <model type='vga' vram='9216' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>

However it would not boot unless I changed this to:
    <video>
      <model type='cirrus' vram='9216' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>

I have several Windows XP guests as well, and I had to change all of them to use 'cirrus' as well. This translates to the qemu args: '-vga std'.

This probably needs a release note as the error message was not at all clear and this may be a usability issues for people upgrading to precise. Full domain xml is attached.

[Serge Hallyn (serge-hallyn)]

Hi Jamie,

I am wondering if yours is the same problem as 994225. Could you switch the machine type in one of these vms to

 <type arch='x86_64' machine='pc-1.0'>hvm</type>

and reset your video section to

  <video>
      <model type='vga' vram='9216' heads='1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>

and see whether that then works?

[Jamie Strandboge (jdstrand)]

pc-1.0 seemed to work. FYI, I had pc-0.12 before.