@cborntra many thanks for the verification.

Commit 9967c2a is indeed not (yet) in this 4.15 bionic kernel.
It got upstream accepted with 4.20 and is with that in disco, hence that should 
all work on disco:

$ git log --oneline | grep -m 1 "s390/mm: fix mis-accounting of pgtable_bytes"
e12e404 s390/mm: fix mis-accounting of pgtable_bytes
$ git tag --contains e12e404
Ubuntu-5.0.0-7.8
...
Ubuntu-5.0.0-22.23
v5.0
$ rmadison --arch=s390x linux-generic | grep disco-proposed
 linux-generic | 5.0.0.22.23   | disco-proposed  | s390x

Regarding bionic, the patch you pointed out will be picked up with the upstream 
stable release update process that is regularly done.
The next update is addressed by ticket LP 1836968 and covers patchset 
2019-07-17, that includes "s390/mm: fix mis-accounting of pgtable_bytes"
(Ctrl+f on page https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1836968 
will show)
Hence there is no need to open a new LP for this particular patch or to submit 
it in a separate kernel SRU. Because it will probably come with the next bionic 
kernel update (since LP 1836968 is already marked as Fix Committed).

I think with strictly looking at the KVM part we can consider this
verification as successfully done.

I will btw. mark the 'linux (Ubuntu)' entry that represents eoan and Fix
Released, because with it's 5.2 kernel it has already everything need.

** Changed in: linux (Ubuntu)
       Status: In Progress => Fix Released

** Changed in: ubuntu-z-systems
       Status: In Progress => Fix Committed

** Tags removed: verification-needed-bionic verification-needed-disco
** Tags added: verification-done-bionic verification-done-disco

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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1836153

Title:
  [18.04 FEAT] zKVM: Add hardware CPU Model - kernel part

Status in Ubuntu on IBM z Systems:
  Fix Committed
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Bionic:
  Fix Committed
Status in linux source package in Disco:
  Fix Committed

Bug description:
  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

  * I could apply the commit IDs cleanly with 'cherry-picks 
--strategy=recursive -X theirs' and checked that no patches on top were pulled 
in
  _________________________

  Feature request to be applied to  Ubuntu 18.04 - kernel.

  The git commit information is already provided within
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1830239

  Once this feature is accepted all information for integration will be 
provided by IBM
  kernel 5.2 down to 4.15.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-z-systems/+bug/1836153/+subscriptions

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