Re: x86: AMD Zen2 ymm registers rolling back

[Borislav Petkov]

On Wed, Feb 22, 2023 at 09:38:09AM +0000, Andrew Cooper wrote:
> This sounds suspiciously like an errata which was fixed with a ucode
> update last year.

Yes, it looks like it.

Alternatively, you can try booting with "clearcpuid=xsaves" - that
should take care of your observation too but yeah, you should rather
update your microcode.

HTH.

-- 
Regards/Gruss,
    Boris.

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