Re: [PATCH V1 vfio 0/9] Introduce a vfio driver over virtio devices

Jason Gunthorpe
2023-10-23T15:43:05Z

On Mon, Oct 23, 2023 at 09:33:23AM -0600, Alex Williamson wrote:

> > Alex,
> > Are you fine to leave the provisioning of the VF including the control
> > of its transitional capability in the device hands as was suggested by
> > Jason ?
>
> If this is the standard we're going to follow, ie. profiling of a
> device is expected to occur prior to the probe of the vfio-pci variant
> driver, then we should get the out-of-tree NVIDIA vGPU driver on board
> with this too.

Those GPU drivers are using mdev not vfio-pci..

mdev doesn't have a way in its uapi to configure the mdev before it is
created.

I'm hopeful that the SIOV work will develop something better because
we clearly need it for the general use cases of SIOV beyond VFIO.

Jason