[Bug 1959735] Re: [22.04 FEAT] KVM: Improve SIGP architectural compliance

This bug is already Fix Released and closed and was requested for jammy only.
So it wasn't requested for focal, hence updating the tags to 'verification-done-focal' to unblock any processes.

** Tags removed: verification-needed-focal
** Tags added: verification-done-focal

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https://bugs.launchpad.net/bugs/1959735

Title:
[22.04 FEAT] KVM: Improve SIGP architectural compliance

Status in Ubuntu on IBM z Systems:
Fix Released
Status in linux package in Ubuntu:
Fix Released

Bug description:
Linux as a guest operating system often doesn't have as stringent
requirements to architectural compliance as traditional operating
systems that rely on it. Specifically, KVM implements the SIGP RESTART
in a non-compliant way, as it reports a CPU state to be stopped after
SIGP RESTART was issued, while it should report a busy condition until
the CPU is really started. This feature covers the necessary
fixes/improvements to KVM SIGP processing.

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