On Mon, May 31, 2021 at 03:48:35PM +0200, Thomas Gleixner wrote: > What's unclear to me is under which circumstances does the IMS interrupt > require a PASID. > > 1) Always > 2) Use case dependent It is just a weird IDXD thing. The PASID is serving as some VM identifier in that HW, somehow, AFAIK. Jason