[Bug 2129770] Re: kernel crash on bootup for some arm64 machines

This bug is awaiting verification that the linux-
oracle-6.17/6.17.0-1007.7~24.04.1 kernel in -proposed solves the
problem. Please test the kernel and update this bug with the results. If
the problem is solved, change the tag 'verification-needed-noble-linux-
oracle-6.17' to 'verification-done-noble-linux-oracle-6.17'. If the
problem still exists, change the tag 'verification-needed-noble-linux-
oracle-6.17' to 'verification-failed-noble-linux-oracle-6.17'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-noble-linux-oracle-6.17-v2 verification-needed-noble-linux-oracle-6.17

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https://bugs.launchpad.net/bugs/2129770

Title:
kernel crash on bootup for some arm64 machines

Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Questing:
Fix Released

Bug description:
[ Impact ]

Questing generic kernel will fail to boot on some arm64 machines.

[ Fix ]

Cherry pick upstream commit c35dd838666d47d ("KVM: arm64: Guard
PMSCR_EL1 initialization with SPE presence check").

[ Test Plan ]

Compile and boot tested

[ Where problems could occur ]

This commit touches ARM_SPE, so tools utilizing this feature could
show undefined behavior.

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