On Fri, 2016-09-16 at 15:20 +0200, Pavel Hrdina wrote:
> > There is something I wanted to clarify with Laszlo: is
> > virtio-gpu-pci ever going to be usable on other architectures
> > such as x86_64? Maybe it already is? Because if that's the
> > case, we'll want to be able to choose between virtio-vga and
> > virtio-gpu-pci.
> > One solution would be to keep mapping model='virtio' to
> > virtio-vga and create a new model='virtio-gpu' that maps to
> > virtio-gpu-pci, then forbid aarch64 mach-virt guests to use
> > model='virtio'. Or something like that, I'm not married to
> > the idea, I just think it's something we should definitely
> > think about before this ends up in a release.
> I have some patches in my TODO branch that will rewrite the video
> device code. virtio-gpu-pci is usable also on other architectures
> but it lacks the VGA compatibility mode. In libvirt all primary
> video devices for x86 architecture have VGA mode. Currently we
> allow only QXL to be used as secondary video device and now with
> the virtio-gpu-pci it could be also used as secondary video device.
> The solution would be simple, there is no need to add a new video
> model 'virtio-gpu', we will use the existing model 'virtio', but
> depending on architecture and also whether it's primary or
> secondary video device we will use appropriate device.
> We already do this for QXL.
I don't know much about video devices, so forgive me if I'm
asking silly questions, but what is preventing you (on x86)
from having virtio-vga as secondary video device? Or
virtio-gpu-pci as primary video device?
Andrea Bolognani / Red Hat / Virtualization
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