Re: [Qemu-devel] [PATCH v8 4/6] docs: Add Documentation for Mediated devices

[Paolo Bonzini]

On 13/10/2016 16:36, Alex Williamson wrote:
>> > 
>> > Libvirt would have parent and type_id in XML. No two vendors can own
>> > same parent device. So I don't think vendors would collide even having
>> > same type_id, since <parent, type_id> pair would always be unique.
> 
> We have a goal of supporting migration with mdev devices, Intel has
> already shown this is possible.  Tying the XML representation of an
> mdev device to a parent device is directly contradictory to that goal.
> libvirt needs a token which is unique across vendor to be able to
> instantiate an mdev device.  <parent, type_id> is unacceptable.

Would the vGPU's PCI vendor and device ID be acceptable and unique?

Paolo