Re: [Xen-users] VGA Passthrough of AMD FirePro W7000 to Windows 8: Not enough resources

[Gordan Bobic <gordan@xxxxxxxxxx>]

On 10/02/2013 02:14 PM, Toby Miller wrote:
> On 02/10/13 01:05, Andrew Bobulsky wrote:
> > On Sep 30, 2013, at 8:26 AM, Toby Miller <tobycmiller@xxxxxxxxx
> > <mailto: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.
> > >
> > > Many thanks,
> > >
> > > Toby
> > Hello Toby,
> >
> > I can't say whether or not it will help at all, but if your problem
> > relates to IRQ issues, it may help to try turning on/off MSI
> > translation for the device, or possibly changing its virtual slot
> > assignment.
> >
> > The syntax for changing these options in your domain's cfg file can be
> > found here: http://xenbits.xen.org/docs/unstable/man/xl.cfg.5.html#devices
> >
> > Cheers,
> > Andrew
> Thanks for your help. I've managed to get it booting now, although the
> host crashes all the time. I've tried turning on MSI translation but
> that doesn't seem to make much diference. Details are in my reply to
> gordan@xxxxxxxxxxx
1) Check lspci and make sure nothing is sharing the passthrough GPU 
interrupt.
2) You don't need gfx_passthrough=1, I have my VMs running without it as 
secondary VGA passthrough. BIOS/boot output comes up on VNC, login 
screen and later come up on the GPU itself. Personally I have up on ATI 
cards, but my faux-Quadro cards work very well in this kind of a setup.
Gordan


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