Re: [PATCH 2/3] KVM: SVM: Add host support for Enhanced SMT Protection

[Borislav Petkov]

On Mon, Sep 14, 2026 at 04:55:55PM +0000, Pratik R. Sampat wrote:
> diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
> index f70ee74b5f92..4cf477e95c58 100644
> --- a/arch/x86/include/asm/cpufeatures.h
> +++ b/arch/x86/include/asm/cpufeatures.h
> @@ -529,6 +529,7 @@
>  						      * and purposes if CLEAR_CPU_BUF_VM is set).
>  						      */
>  #define X86_FEATURE_X2AVIC_EXT		(21*32+20) /* AMD SVM x2AVIC support for 4k vCPUs */
> +#define X86_FEATURE_AMD_ESMTP		(21*32+21) /* AMD Enhanced SMT Protection */

For the non-virt bits like this one and in scattered.c:

Acked-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>

And Sashiko has comments:

https://sashiko.dev/#/patchset/cover.1789399214.git.prsampat%40amd.com

Please address them: if valid, fix them, if not, explain why they don't need
to be fixed.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette