> From: Peter Xu [mailto:pet...@redhat.com] > Sent: Thursday, February 14, 2019 3:14 PM > > > > > > When 256 bits invalidation descriptor is used, the guest driver > > > should be responsible to fill in zeros into reserved fields. > > > > > > Another question: is val[2] & val[3] used in any place even with > > > 256bits mode? From what I see from the spec (chap 6.5.2), all of them > > > seems to be reserved as zeros, then I don't understand why bother > > > extending this to 256bits... Did I miss something? > > >
PRQ is extended to carry larger private data which requires 256bits mode. You can take a look at 7.5.1.1 Page Request Descriptor. Thanks Kevin
