>>
gordan@xxxxxxxxxx wrote:
> On Sun, 29 Sep 2013 15:01:01 +0100, Toby Miller<
tobycmiller@xxxxxxxxx>
> wrote:
>> >I'm using Xen 4.3, installed from source on Ubuntu 13.04. I've
>> >successfully installed a Windows 8 guest, and had Xen pass it an AMD
>> >FirePro W7000 GPU (technically 2 PCI devices - the second is for the
>> >sound), as well as the virtualised graphics adapter. Windows finds
>> >the
>> >card fine, and I've installed AMD's drivers. Device Manager says that
>> >the card cannot find enough resources (code 12). I've checked the IO,
>> >IRQ, and Memory details in DM, and there don't
seem to be any
>> >clashes.
>> >
>> >I did try disabling the virtualised card from Windows, but it seemed
>> >to keep using it anyway, even after a restart. It didn't make any
>> >difference to the FirePro in any case.
>> >
>> >I'd be grateful for some help.
> I haven't tried Windows 8, but on XP64 disabling the Cirrus card in
> device manager fixed the problem for me with Nvidia card passthrough.
>
> You could try setting gfx_passthru=1, which should disable the
> Cirrus emulation alltogether. That may make Windows domU completely
> fail to boot, though.
>
> Did you do a clean Win8 install and reboot the host fully? Is the
> FirePro the primary GPU on the host? Or is it completely untouched
> in dom0 (no dom0 or BIOS output on it)?
>
>
Gordan
Thanks for your reply. It turns out the problem was that I'd forgotten
to put device_model_version="qemu-xen-traditional", so I was using a
qemu that didn't support gfx_passthrough. The FirePro is not used in
dom0 at all. I'm using pciback to hide it.
I now have another problem though. The Ubuntu host crashes a lot when
the Windows 8 guest is running. Mostly it happens when I try to shut
down Windows - I think it might be a result of the FirePro card being
released -, but sometimes it happens randomly too. The screen completely
freezes, and no ssh or anything. I should mention that I'm not passing
through the audio pci device for the FirePro, although it is bound to
pciback so the host can't be using it either. If I try to pass that
through it never actually boots. I've had a lot of blue screens, and a
lot of host crashes. I'm passing through a USB device too (i.e. the PCI
USB device), and
that works fine.
Googling doesn't seem to come up with much for host crashes. What can I
do to diagnose the problem? There's nothing in the syslog.
Thanks a lot!
Toby
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxhttp://lists.xen.org/xen-users
