RE: [PATCH vfio 10/11] vfio/virtio: Expose admin commands over virtio device

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> From: Jason Gunthorpe <jgg@xxxxxxxxxx>
> Sent: Tuesday, October 10, 2023 9:37 PM
> 
> On Tue, Oct 10, 2023 at 12:03:29PM -0400, Michael S. Tsirkin wrote:
> > On Tue, Oct 10, 2023 at 12:59:37PM -0300, Jason Gunthorpe wrote:
> > > On Tue, Oct 10, 2023 at 11:14:56AM -0400, Michael S. Tsirkin wrote:
> > >
> > > > I suggest 3 but call it on the VF. commands will switch to PF
> > > > internally as needed. For example, intel might be interested in
> > > > exposing admin commands through a memory BAR of VF itself.

If in the future if one does admin command on the VF memory BAR, there is no need of cast either.
vfio-virtio-pci driver can do on the pci vf device directly.

(though per VF memory registers would be anti-scale design for real hw; to discuss in other forum).
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