Expose vfio device display/migration to libvirt and above, was Re: [PATCH 0/3] sample: vfio mdev display devices.

[Gerd Hoffmann]

  Hi,

> Maybe some guiding questions:
> 
>  - Will dma-buf always require GL support?

Yes.

>  - Does GL support limit our ability to have a display over a remote
>    connection?

Currently yes, althrough the plan is to support gl display remotely in
spice.  The workflow will be completely different though.  Non-gl spice
uses the classic display channel, the plan for gl spice is to feed the
dma-bufs into the gpu's video encoder then send a video stream.

>  - Do region-based displays also work with GL support, even if not
>    required?

Yes.  Any qemu display device works with gl-enabled UI.

cheers,
  Gerd