Re: [PATCH v2] KVM: s390: wire up bpb feature

Cornelia Huck
2018-01-18T09:59:16Z

On Wed, 17 Jan 2018 14:44:34 +0100
Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> The new firmware interfaces for branch prediction behaviour changes
> are transparently available for the guest. Nevertheless, there is
> new state attached that should be migrated and properly resetted.
> Provide a mechanism for handling reset, migration and VSIE.
>
> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
> v1->v2: - review feedback from David
> - rename seb(c) into bpb(c)
> arch/s390/include/asm/kvm_host.h | 3 ++-
> arch/s390/include/uapi/asm/kvm.h | 5 ++++-
> arch/s390/kvm/kvm-s390.c | 12 ++++++++++++
> arch/s390/kvm/vsie.c | 10 ++++++++++
> include/uapi/linux/kvm.h | 1 +
> 5 files changed, 29 insertions(+), 2 deletions(-)

Reviewed-by: Cornelia Huck <cohuck@redhat.com>

But I'd like to see some documentation (a line) for the new cap under
Documentation/. However, this can be done as a separate update (we
might be missing more).