Re: [PATCH] KVM: x86: synthesize TSA CPUID bits via SCATTERED_F()

From: Borislav Petkov

Date: Mon Feb 09 2026 - 10:38:34 EST


On Mon, Feb 09, 2026 at 07:06:36AM -0800, Sean Christopherson wrote:
> Maybe I could add a table showing how the XXX_F() macros map to various controls?

Perhaps start first, please, with explaining the difference between
SYNTHESIZED_F and SCATTERED_F and why you even need it?

I mean, KVM and guests only care whether X86_FEATURE flags are set or not, no?
Not how they get defined underneath...

--
Regards/Gruss,
Boris.

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