Re: [PATCH] x86/CPU/AMD: Fix AMD TLBI Erratum #1718

[Borislav Petkov]

On Fri, Oct 02, 2026 at 08:31:30PM -0400, Rik van Riel wrote:
> This same change fell out of my testing with
> a reproducer earlier this year, so I know it
> works, at least for the test case I have.
> 
> I am surprised that it was good enough to be 
> a real workaround, but I'll take it ;)

Me too, but it really is - there's a good reason why :)

But the most proper workaround is for everyone to update microcode anyway - it
is released too, so we don't even need the sw fallback.

> Tested-by: Rik van Riel <riel@xxxxxxxxxxx>
> Reviewed-by: Rik van Riel <riel@xxxxxxxxxxx>

Thanks, my plan is to queue it next week so that we have it in 7.3 and it
percolates to stable.

-- 
Regards/Gruss,
    Boris.

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