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Peter Anvin" , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev, Binbin Wu , Changyuan Lyu , Sashiko References: <20261022210134.612848-1-seanjc@google.com> <20261022210134.612848-2-seanjc@google.com> Content-Language: en-US From: Xiaoyao Li In-Reply-To: <20261022210134.612848-2-seanjc@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/23/2026 5:01 AM, Sean Christopherson wrote: > Add function 0x23 to the set of CPUID functions that are indexed, as per > the SDM and the many sub-leafs defined in leaf_types.h. > > Reported-by: Rick Edgecombe > Closes: https://lore.kernel.org/all/213d614fe73e183a230c8f4e0c8fa1cc3d45df39.camel@intel.com > Cc: stable@vger.kernel.org > Signed-off-by: Sean Christopherson Reviewed-by: Xiaoyao Li > --- > arch/x86/include/asm/cpuid/api.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/x86/include/asm/cpuid/api.h b/arch/x86/include/asm/cpuid/api.h > index 82eddfa2347b..25b22b173f2a 100644 > --- a/arch/x86/include/asm/cpuid/api.h > +++ b/arch/x86/include/asm/cpuid/api.h > @@ -181,6 +181,7 @@ static __always_inline bool cpuid_function_is_indexed(u32 function) > case 0x1d: > case 0x1e: > case 0x1f: > + case 0x23: > case 0x24: > case 0x8000001d: > return true;