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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Sep 2025 13:02:13.2573 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d680d1f6-8427-42c9-6aeb-08ddf06a42c5 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: SJ1PEPF00002326.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA5PPF6CDAEAF48 Manali Shukla writes: > From: Santosh Shukla > > The virtualized IBS (VIBS) feature allows the guest to collect IBS > samples without exiting the guest. > > Presence of the VIBS feature is indicated via CPUID function > 0x8000000A_EDX[26]. > > Signed-off-by: Santosh Shukla > Signed-off-by: Manali Shukla > --- > 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/cpufeatures.h > index 0dd44cbf7196..3c31dea00671 100644 > --- a/arch/x86/include/asm/cpufeatures.h > +++ b/arch/x86/include/asm/cpufeatures.h > @@ -379,6 +379,7 @@ > #define X86_FEATURE_V_SPEC_CTRL (15*32+20) /* "v_spec_ctrl" Virtual SPEC_CTRL */ > #define X86_FEATURE_VNMI (15*32+25) /* "vnmi" Virtual NMI */ > #define X86_FEATURE_EXTLVT (15*32+27) /* Extended Local vector Table */ > +#define X86_FEATURE_VIBS (15*32+26) /* Virtual IBS */ Please move before EXTLVT to maintain bit position order Regards, Nikunj > #define X86_FEATURE_SVME_ADDR_CHK (15*32+28) /* SVME addr check */ > #define X86_FEATURE_BUS_LOCK_THRESHOLD (15*32+29) /* Bus lock threshold */ > #define X86_FEATURE_IDLE_HLT (15*32+30) /* IDLE HLT intercept */ > -- > 2.43.0