[SRU][B][D][Patch 0/9] zKVM: Add hardware CPU Model - kernel part (LP: 1836153)

frank.heimes at canonical.com frank.heimes at canonical.com
Tue Jul 16 06:54:30 UTC 2019


Buglink: https://bugs.launchpad.net/bugs/1836153

SRU Justification:

[Impact]

* New hardware is not supported by qemu and won't run run, due to missing hardware CPU model

[Fix]

* 11ba5961a2156a4f210627ed8421387e2531b100 11ba596 "KVM: s390: add debug logging for cpu model subfunctions"

* 346fa2f891c71a9b98014f8f62c15f4c7dd95ec1 346fa2f "KVM: s390: implement subfunction processor calls"

* 7832e91cd33f21f3cf82b003478c292915a1ec14 7832e91 "KVM: s390: add vector enhancements facility 2 to cpumodel"

* d5cb6ab1e3d4d7e0648a167f6290e89f6e86964e d5cb6ab "KVM: s390: add vector BCD enhancements facility to cpumodel"

* 13209ad0395c4de7fa48108b1dac72e341d5c089 13209ad "KVM: s390: add MSA9 to cpumodel"

* d668139718a9e2260702777bd8d86d71c30b6539 d668139 "KVM: s390: provide query function for instructions returning 32 byte"

* 173aec2d5a9fa5f40e462661a8283fcafe04764f 173aec2 "KVM: s390: add enhanced sort facilty to cpu model"

* 4f45b90e1c03466202fca7f62eaf32243f220830 4f45b90 "KVM: s390: add deflate conversion facilty to cpu model"

* 8ec2fa52eac53bff7ef1cedbc4ad8af650ec937c 8ec2fa5 "KVM: s390: enable MSA9 keywrapping functions depending on cpu model"

[Test Case]

* need to be tested by IBM on pre-rel. hardware or simulator

[Regression Potential] 

* The regression potential can be considered as low since these changes are limited to arch/s390

* changes are in support for new and upcoming hardware and shouldn't affect existing s390x systems

[Other Info]

* the first 2 commits are the key ones, the other 7 are needed to make them applly cleanly

* these patches are already all included in upstream kernel 5.2, hence they are in eoan's kernel 5.2

* qemu package SRU in LP 1836154 complements this SRU - for testing both need to be in place

* commit IDs applied cleanly with 'cherry-picks --strategy=recursive -X theirs' - checked that no patches on top were pulled in

Christian Borntraeger (9):
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>
  From: Christian Borntraeger <borntraeger at de.ibm.com>

 Documentation/virtual/kvm/devices/vm.txt |   3 +-
 arch/s390/include/asm/cpacf.h            |   1 +
 arch/s390/include/asm/kvm_host.h         |   2 +
 arch/s390/include/uapi/asm/kvm.h         |   5 +-
 arch/s390/kvm/kvm-s390.c                 | 271 +++++++++++++++++++++++++++++--
 arch/s390/kvm/vsie.c                     |   5 +-
 arch/s390/tools/gen_facilities.c         |   3 +
 tools/arch/s390/include/uapi/asm/kvm.h   |   3 +-
 8 files changed, 275 insertions(+), 18 deletions(-)

-- 
2.7.4




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