On Fri, 23 Feb 2018 12:03:00 +0100 Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote: > On 02/23/2018 11:55 AM, David Hildenbrand wrote: > > On 23.02.2018 09:11, Christian Borntraeger wrote: > >> +8.17 KVM_CAP_S390_BPB > >> + > >> +Architectures: s390 > >> + > >> +This capability indicates that kvm will implement the interfaces to handle > >> +reset, migration and nested KVM for branch prediction blocking. > >> > > > > Maybe add a comment about bpb being exposed via CPU model (stfl) and > > that it should not be used without this capability? > > Something like: > "The stfle facility 82 should not be provided to the guest without this capability". > ? > Makes sense.
