Re: [PATCH v3 1/4] Add virtio Admin virtqueue

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Feb 08, 2022 at 03:33:36PM +0000, Parav Pandit wrote:
> 
> > From: Michael S. Tsirkin <mst@redhat.com>
> > Sent: Tuesday, February 8, 2022 8:58 PM
> > On Tue, Feb 08, 2022 at 03:11:28PM +0000, Parav Pandit wrote:
> > >
> > > > From: Cornelia Huck <cohuck@redhat.com>
> > > > Sent: Tuesday, February 8, 2022 8:29 PM
> > >
> > > > very specific (essentially PCI-specific), we need to at least answer
> > > > the question "how could this work for things that are not PCI?"
> > > Why would one want to execute PCI VF MSI-X configuration command for a
> > non PCI device?
> > 
> > E.g. there were proposals to add msi support to virtio-mmio.
> 
> What prevents mmio specific command say mmio_dev_interrupt_config()?
> Which fields do overlap with msix config of pci vf?
> How is the mmio device identified?

if mmio starts supporting msi-x then # of vectors can reasonably be
specified in exactly the same way.

-- 
MST