vfio-user in libvirt

[John Levon]

Hi, has anyone considered support for vfio-user devices in libvirt?

I was thinking of something like:

  <controller type='vfio-user' index='0'>
    <socket type="path">/path/to/vfio-user.sock</socket>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
  </controller>

The main reason why this is useful is to get a PCI slot assigned for PCI-based
vfio-user.

Thoughts?

thanks
john