Re: [PATCH v12 01/25] x86/cpufeatures: Add missing CQM feature dependency

From: Reinette Chatre

Date: Thu Sep 24 2026 - 11:16:06 EST


Hi Tony,

On 9/16/26 4:12 PM, Tony Luck wrote:
> The Intel Software Developer's Manual says that software must check that
> CPUID(0x7,0x0).EBX[12] (Linux X86_FEATURE_CQM) is set before checking
> for monitoring features in CPUID leaf 0xF.
>
> Add the missing dependency of X86_FEATURE_CQM_LLC on X86_FEATURE_CQM.
>
> Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx>
> ---

Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>

Reinette