Public bug reported:

Decription:
   KVM: SIGP RESTART is reporting a CPU state 'stopped' after SIGP RESTART was 
issued, while it should report a 'busy' condition until the CPU is really 
started.

 The patches to fix this have already been picked for jammy/master-next:

812de04661c4 "KVM: s390: Clarify SIGP orders versus STOP/RESTART"
435d17955519 "KVM: s390: Add a routine for setting userspace CPU state"
4563bcad46bf "KVM: s390: Simplify SIGP Set Arch handling"

 For Ubuntu 20.04 the focal/master-next already contains:
d74b0d2d38d3 KVM: s390: Clarify SIGP orders versus STOP/RESTART

 so we additionally need the following two upstream commits in focal
67cf68b6a5cc KVM: s390: Add a routine for setting userspace CPU state
8eeba194a32e KVM: s390: Simplify SIGP Set Arch handling

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Skipper Bug Screeners (skipper-screen-team)
         Status: New


** Tags: architecture-s39064 bugnameltc-196454 severity-high 
targetmilestone-inin---

** Tags added: architecture-s39064 bugnameltc-196454 severity-high
targetmilestone-inin---

** Changed in: ubuntu
     Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)

** Package changed: ubuntu => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1962578

Title:
  [UBUNTU 20.04] Fix SIGP processing (KVM: s390)

Status in linux package in Ubuntu:
  New

Bug description:
  Decription:
     KVM: SIGP RESTART is reporting a CPU state 'stopped' after SIGP RESTART 
was issued, while it should report a 'busy' condition until the CPU is really 
started.

   The patches to fix this have already been picked for jammy/master-
  next:

  812de04661c4 "KVM: s390: Clarify SIGP orders versus STOP/RESTART"
  435d17955519 "KVM: s390: Add a routine for setting userspace CPU state"
  4563bcad46bf "KVM: s390: Simplify SIGP Set Arch handling"

   For Ubuntu 20.04 the focal/master-next already contains:
  d74b0d2d38d3 KVM: s390: Clarify SIGP orders versus STOP/RESTART

   so we additionally need the following two upstream commits in focal
  67cf68b6a5cc KVM: s390: Add a routine for setting userspace CPU state
  8eeba194a32e KVM: s390: Simplify SIGP Set Arch handling

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