On Tue, Dec 06, 2022 at 09:52:54AM -0400, Jason Gunthorpe wrote: > On Tue, Dec 06, 2022 at 02:09:01PM +0100, Christoph Hellwig wrote: > > On Tue, Dec 06, 2022 at 09:05:05AM -0400, Jason Gunthorpe wrote: > > > In this case Intel has a real PCI SRIOV VF to expose to the guest, > > > with a full VF RID. > > > > RID? > > "Requester ID" - PCI SIG term that in Linux basically means you get to > assign an iommu_domain to the vfio device. Yeah I now the Requester ID, I've just never seen that shortcut for it. > >From what I understood this series basically allows two Intel devices > to pass a big opaque blob of data. Intel didn't document what is in > that blob, so I assume it captures everything you mention above. Which would be just as bad, because it then changes the IDs under the live OS on a restore. This is not something that can be done behind the back of the hypervisors / control plane OS.
