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x86/msr-index: Add AMD workload classification MSRs

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

Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/20250609200518.3616080-4-superm1@kernel.org
This commit is contained in:
Perry Yuan 2025-06-09 15:05:08 -05:00 committed by Borislav Petkov (AMD)
parent 31b294e522
commit a3c4f3396b
1 changed files with 5 additions and 0 deletions
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5
arch/x86/include/asm/msr-index.h
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@ -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