Re: [PATCH 2/2] cpu: Ignore "mitigations" kernel parameter if CPU_MITIGATIONS=n

[Borislav Petkov]

On Tue, Apr 16, 2024 at 05:15:07PM -0700, Sean Christopherson wrote:
> Explicitly disallow enabling mitigations at runtime for kernels that were
> built with CONFIG_CPU_MITIGATIONS=n, which currently is possible only on
> x86 (via x86's SPECULATION_MITIGATIONS menuconfig).

Hm, so the umbrella term is CPU_MITIGATIONS, the x86-one is
SPECULATION_MITIGATIONS.

I wanna streamline our namespacing and say, the arch agnostic term
should be CPU_MITIGATIONS and the x86 one should be then
X86_CPU_MITIGATIONS, the Arm one would be ARM_CPU_MITIGATIONS and so on.

This way we can stick all kinds of special mitigations code - not only
speculative execution ones - under those config items and have it all
straight from the get-go.

And I think we should do it now, before it all propagates down the tree
and becomes a lot harder to rename.

Thoughts?

Thx.

-- 
Regards/Gruss,
    Boris.

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