Re: [RFC][PATCH 06/17] x86/cpu: Add SRSO untrain to retbleed=

[Borislav Petkov]

On Thu, Aug 10, 2023 at 12:10:03PM -0400, Josh Poimboeuf wrote:
> I tend to agree that SRSO is a new issue and should have its own sysfs
> and cmdline options (though a separate CONFIG option is overkill IMO).

Yeah, there's a patch floating around adding a config option for every
mitigation. Apparently people want to build-time disable them all.

> The mitigations are unfortunately intertwined, but we've been in that
> situation several times before (e.g., spectre_v2 + intel retbleed).

Yap.

And if you recall, keeping Intel Retbleed from AMD Retbleed apart was
already a PITA at the time so adding yet another one behind that flag
would be madness.

-- 
Regards/Gruss,
    Boris.

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