[Bug 219009] Random host reboots on Ryzen 7000/8000 using nested VMs (vls suspected)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219009

Christian Haefeli (chaefeli@angband.ch) changed:

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                 CC|                            |chaefeli@angband.ch

--- Comment #45 from Christian Haefeli (chaefeli@angband.ch) ---
(In reply to Mario Limonciello (AMD) from comment #38)
> Thanks everyone for your feedback and testing.
> 
> The following change will go into 6.12 and back to the stable kernels to fix
> this issue.  It is essentially doing the same effect that kvm_amd.vls=0 did.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/
> urgent&id=a5ca1dc46a6b610dd4627d8b633d6c84f9724ef0

Hello
I would prefer the more flexible solution via kvm_amd module parameter.
I am not having this issue with an Epyc 4244p but am now losing performance
due to this hard coded workaround. Does my CPU also qualify as a 'Zen4 Client
SoC? 


Regards
Christian

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