On Thu, Mar 04, 2021 at 11:01:44AM -0800, Jacob Pan wrote: > > For something like qemu I'd expect to put the qemu process in a cgroup > > with 1 PASID. Who cares what qemu uses the PASID for, or how it was > > allocated? > > For vSVA, we will need one PASID per guest process. But that is up to the > admin based on whether or how many SVA capable devices are directly > assigned. I hope the virtual IOMMU driver can communicate the PASID limit and the cgroup machinery in the guest can know what the actual limit is. I was thinking of a case where qemu is using a single PASID to setup the guest kVA or similar Jason
