Commit a3c4f339 authored by Perry Yuan's avatar Perry Yuan Committed by Borislav Petkov (AMD)
Browse files

x86/msr-index: Add AMD workload classification MSRs 



Introduce new MSR registers for AMD hardware feedback support.  They provide
workload classification and configuration capabilities.

Signed-off-by: default avatarPerry Yuan <perry.yuan@amd.com>
Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Signed-off-by: default avatarBorislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: default avatarGautham R. Shenoy <gautham.shenoy@amd.com>
Acked-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/20250609200518.3616080-4-superm1@kernel.org
parent 31b294e5

arch/x86/include/asm/msr-index.h

+5 −0
Original line number Diff line number Diff line
@@ -732,6 +732,11 @@ 
#define MSR_AMD64_PERF_CNTR_GLOBAL_CTL		0xc0000301

#define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR	0xc0000302



/* AMD Hardware Feedback Support MSRs */

#define MSR_AMD_WORKLOAD_CLASS_CONFIG		0xc0000500

#define MSR_AMD_WORKLOAD_CLASS_ID		0xc0000501

#define MSR_AMD_WORKLOAD_HRST			0xc0000502



/* AMD Last Branch Record MSRs */

#define MSR_AMD64_LBR_SELECT			0xc000010e