[SRU][Artful][Bionic][PATCH 0/1] KVM: s390: wire up bpb feature

[Joseph Salisbury]

BugLink: http://bugs.launchpad.net/bugs/1747090

== SRU Justification ==
Mainline commit 35b3fde6203b9 is a KVM patch for s390x to provide facility 
bits 81 (ppa15) and 82 (bpb).  This is required for branch prediction behaviour 
changes.      

This is the public bug for SRU.  There is also a priave bug report:
http://bugs.launchpad.net/bugs/1743560

There is a qemu portion to this fix:
http://patchwork.ozlabs.org/cover/862801/

This fix is also requred in Xenial, but Xenial requires a prereq commit.  The 
Xenial SRU request will be sent separatly.

== Fix ==
commit 35b3fde6203b932b2b1a5b53b3d8808abc9c4f60
Author: Christian Borntraeger <borntraeger at de.ibm.com>
Date:   Wed Jan 17 14:44:34 2018 +0100

    KVM: s390: wire up bpb feature


== Regression Potential ==
Low, this fix is limited to s390.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.

Christian Borntraeger (1):
  KVM: s390: wire up bpb feature

 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(-)

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2.7.4