[vfio-users] vfio-pci disable_vga but still t rying to switch....

[Alex Williamson]

On Sat, Mar 12, 2016 at 9:48 AM, Quentin Deldycke <quentindeldycke at gmail.com
> wrote:

> Hello,
>
> I want to be able to use:
>
>    - r9 290 on vm using vfio (actually working)
>    - intel graphic card on host
>    - another amd card (but rather old, different the r9 290) on host (to
>    at least, if it work, change it to a nvidia card who support hdmi 2.0)
>
> My problem is that when i boot, the vga arb is making the combo intel /
> old radeon buggy: no dri2, so no dri-prime also. I wanted to avoid i915
> patch... But this state is present even before the vm is booted (note that
> it use ovmf pure efi).
>

vfio-pci.disable_vga is meant for exactly this, in fact this is how I use
it, igd host, nvidia for one vm, amd for another.  Both vm graphics cards
need to support uefi.  There's no need to disable CSM on the host.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20160312/eec640c4/attachment.htm>