On Fri, 7 Feb 2020 06:39:57 -0500 Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote: > From: Janosch Frank <frankja@xxxxxxxxxxxxx> > > For protected VMs, the VCPU resets are done by the Ultravisor, as KVM > has no access to the VCPU registers. > > As the Ultravisor will only accept a call for the reset that is > needed, we need to fence the UV calls when chaining resets. Last time, I suggested replacing this with "Note that the ultravisor will only accept a call for the exact reset that has been requested." I still suggest that :) > > Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx> > Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx> > Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> > [borntraeger@xxxxxxxxxx: patch merging, splitting, fixing] > Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx> > --- > arch/s390/kvm/kvm-s390.c | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
