Comment # 34 on bug 1197558 from Borislav Petkov

That thing has a proprietary module in there:

... loaded Tainted: P           OE     5.17.1-3.g58205bc-default...

... wl(POE) amdgpu r8168(OE)...

[    2.052104] wl: module license 'MIXED/Proprietary' taints kernel.
[    2.052108] Disabling lock debugging due to kernel taint

And that thing warns first in the AMD iommu code and the warning adding commit

  a8d4a37d1bb9 ("iommu/amd: Restore GA log/tail pointer on host resume")

talks about some guest vapic log getting a chance to resume. The timer BUG_ON()
points to a CPU not coming online, presumably CPU1 or so.

So, can you reproduce the same thing with that wl module completely removed
from your system?