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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Sep 2025 05:04:13.3393 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 14ed459a-a94e-4c7a-b451-08ddfa5ea395 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000971E6.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8934 Content-Type: text/plain; charset="utf-8" Add CPU feature detection for Secure AVIC. The Secure AVIC feature provides hardware acceleration for performance sensitive APIC accesses and support for managing guest-owned APIC state for the SEV-SNP guests. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Neeraj Upadhyay --- arch/x86/include/asm/cpufeatures.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpuf= eatures.h index 06fc0479a23f..d855825b1b9e 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -449,6 +449,7 @@ #define X86_FEATURE_DEBUG_SWAP (19*32+14) /* "debug_swap" SEV-ES full deb= ug state swap support */ #define X86_FEATURE_RMPREAD (19*32+21) /* RMPREAD instruction */ #define X86_FEATURE_SEGMENTED_RMP (19*32+23) /* Segmented RMP support */ +#define X86_FEATURE_SECURE_AVIC (19*32+26) /* Secure AVIC */ #define X86_FEATURE_ALLOWED_SEV_FEATURES (19*32+27) /* Allowed SEV Feature= s */ #define X86_FEATURE_SVSM (19*32+28) /* "svsm" SVSM present */ #define X86_FEATURE_HV_INUSE_WR_ALLOWED (19*32+30) /* Allow Write to in-us= e hypervisor-owned pages */ --=20 2.34.1