/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2023, Tencent, Inc. */ #ifndef SELFTEST_KVM_PMU_H #define SELFTEST_KVM_PMU_H #include #define KVM_PMU_EVENT_FILTER_MAX_EVENTS 300 /* * Encode an eventsel+umask pair into event-select MSR format. Note, this is * technically AMD's format, as Intel's format only supports 8 bits for the * event selector, i.e. doesn't use bits 24:16 for the selector. But, OR-ing * in '0' is a nop and won't clobber the CMASK. */ #define RAW_EVENT(eventsel, umask) (((eventsel & 0xf00UL) << 24) | \ ((eventsel) & 0xff) | \ ((umask) & 0xff) << 8) /* * These are technically Intel's definitions, but except for CMASK (see above), * AMD's layout is compatible with Intel's. */ #define ARCH_PERFMON_EVENTSEL_EVENT GENMASK_ULL(7, 0) #define ARCH_PERFMON_EVENTSEL_UMASK GENMASK_ULL(15, 8) #define ARCH_PERFMON_EVENTSEL_USR BIT_ULL(16) #define ARCH_PERFMON_EVENTSEL_OS BIT_ULL(17) #define ARCH_PERFMON_EVENTSEL_EDGE BIT_ULL(18) #define ARCH_PERFMON_EVENTSEL_PIN_CONTROL BIT_ULL(19) #define ARCH_PERFMON_EVENTSEL_INT BIT_ULL(20) #define ARCH_PERFMON_EVENTSEL_ANY BIT_ULL(21) #define ARCH_PERFMON_EVENTSEL_ENABLE BIT_ULL(22) #define ARCH_PERFMON_EVENTSEL_INV BIT_ULL(23) #define ARCH_PERFMON_EVENTSEL_CMASK GENMASK_ULL(31, 24) /* RDPMC control flags, Intel only. */ #define INTEL_RDPMC_METRICS BIT_ULL(29) #define INTEL_RDPMC_FIXED BIT_ULL(30) #define INTEL_RDPMC_FAST BIT_ULL(31) /* Fixed PMC controls, Intel only. */ #define FIXED_PMC_GLOBAL_CTRL_ENABLE(_idx) BIT_ULL((32 + (_idx))) #define FIXED_PMC_KERNEL BIT_ULL(0) #define FIXED_PMC_USER BIT_ULL(1) #define FIXED_PMC_ANYTHREAD BIT_ULL(2) #define FIXED_PMC_ENABLE_PMI BIT_ULL(3) #define FIXED_PMC_NR_BITS 4 #define FIXED_PMC_CTRL(_idx, _val) ((_val) << ((_idx) * FIXED_PMC_NR_BITS)) #define PMU_CAP_FW_WRITES BIT_ULL(13) #define PMU_CAP_LBR_FMT 0x3f #define INTEL_ARCH_CPU_CYCLES RAW_EVENT(0x3c, 0x00) #define INTEL_ARCH_INSTRUCTIONS_RETIRED RAW_EVENT(0xc0, 0x00) #define INTEL_ARCH_REFERENCE_CYCLES RAW_EVENT(0x3c, 0x01) #define INTEL_ARCH_LLC_REFERENCES RAW_EVENT(0x2e, 0x4f) #define INTEL_ARCH_LLC_MISSES RAW_EVENT(0x2e, 0x41) #define INTEL_ARCH_BRANCHES_RETIRED RAW_EVENT(0xc4, 0x00) #define INTEL_ARCH_BRANCHES_MISPREDICTED RAW_EVENT(0xc5, 0x00) #define INTEL_ARCH_TOPDOWN_SLOTS RAW_EVENT(0xa4, 0x01) #define AMD_ZEN_CORE_CYCLES RAW_EVENT(0x76, 0x00) #define AMD_ZEN_INSTRUCTIONS_RETIRED RAW_EVENT(0xc0, 0x00) #define AMD_ZEN_BRANCHES_RETIRED RAW_EVENT(0xc2, 0x00) #define AMD_ZEN_BRANCHES_MISPREDICTED RAW_EVENT(0xc3, 0x00) /* * Note! The order and thus the index of the architectural events matters as * support for each event is enumerated via CPUID using the index of the event. */ enum intel_pmu_architectural_events { INTEL_ARCH_CPU_CYCLES_INDEX, INTEL_ARCH_INSTRUCTIONS_RETIRED_INDEX, INTEL_ARCH_REFERENCE_CYCLES_INDEX, INTEL_ARCH_LLC_REFERENCES_INDEX, INTEL_ARCH_LLC_MISSES_INDEX, INTEL_ARCH_BRANCHES_RETIRED_INDEX, INTEL_ARCH_BRANCHES_MISPREDICTED_INDEX, INTEL_ARCH_TOPDOWN_SLOTS_INDEX, NR_INTEL_ARCH_EVENTS, }; enum amd_pmu_zen_events { AMD_ZEN_CORE_CYCLES_INDEX, AMD_ZEN_INSTRUCTIONS_INDEX, AMD_ZEN_BRANCHES_INDEX, AMD_ZEN_BRANCH_MISSES_INDEX, NR_AMD_ZEN_EVENTS, }; extern const uint64_t intel_pmu_arch_events[]; extern const uint64_t amd_pmu_zen_events[]; #endif /* SELFTEST_KVM_PMU_H */