[vfio-users] Windows7 Guest using K2 Grid

[James McEvoy]

Alex,
Thanks for verifying the emulated primary graphics requirement.  Another
reason to have emulated graphics there is for booting windows in safe mode
like when I forgot to install a driver before running cloudbase init.

  --jim
On Oct 9, 2015 7:58 PM, "Alex Williamson" <alex.williamson at redhat.com>
wrote:

> On Fri, 2015-10-09 at 16:48 -0700, James McEvoy wrote:
> > We have gotten CentOS6.7 guests to work with a K2 Grid GPU with
> OpenStack.
> > Now we are trying to get a windows VM to use the same K2 Grid GPU.
> > The question I have is do we need a virtual VGA if we have a real nVidia
> K2
> > card passed through to the Windows7 guest VM or can we just define a
> > Display?
> > I ask because we could not get a CentOS guest to boot without defining a
> > Cirrus VGA in the libvirt.xml file.  On CentOS without a virtual VGA and
> > Display
> > the VM would start but never boot and just st there using 100% of one of
> > the CPUs.
>
> I can say that for RHEL7 hosts, we only support Quadro/Grid/Tesla as
> non-primary graphics in the VM.  An emulated primary graphics is always
> required, for Linux or Windows guests.  The emulated graphics can be
> disabled in the guest OS, but there's no other way to interact with the
> guest pre-boot.
>
>
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