Re: [PATCH v19 03/25] x86/cpufeatures: Add CET CPU feature flags for Control-flow Enforcement Technology (CET)
From: Kees Cook
Date: Thu Feb 04 2021 - 15:04:58 EST
On Wed, Feb 03, 2021 at 02:55:25PM -0800, Yu-cheng Yu wrote:
> Add CPU feature flags for Control-flow Enforcement Technology (CET).
>
> CPUID.(EAX=7,ECX=0):ECX[bit 7] Shadow stack
> CPUID.(EAX=7,ECX=0):EDX[bit 20] Indirect Branch Tracking
>
> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
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Kees Cook