Re: [PATCH] x86/cpufeatures: Fix dependencies for GFNI, VAES, and VPCLMULQDQ

[Dave Hansen]

On 4/16/24 23:04, Eric Biggers wrote:
> Fix cpuid_deps[] to list the correct dependencies for GFNI, VAES, and
> VPCLMULQDQ.  These features don't depend on AVX512, and there exist CPUs
> that support these features but not AVX512.  GFNI actually doesn't even
> depend on AVX.
> 
> This prevents GFNI from being unnecessarily disabled if AVX is disabled
> to mitigate the GDS vulnerability.

Looks like the original commit was quite confused.  Thanks for finding this.

Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>