Hi, The KVM selftests show advantages over KUT in terms of finding defects through flexible and varied guest settings from the KVM user space. This patchset tests whether the Intel vPMU works properly with different Intel CPUID.0xA configurations. It also provides test scaffolding and a sufficient number of PMU test cases to subsequently offer adequate code coverage of AMD vPMU or Intel complex features, such as LBR or PEBS, in selftests. All patches have been tested on both Intel and AMD machines, with one exception patch 11 "KVM: selftests: Test AMD Guest PerfMonV2" has not been tested on my AMD machine, as does not support PerfMonV2. Any feedback or suggestions are greatly appreciated. Sincerely, Jinrong Liang Please note that following patch should be applied before this patch series: https://lore.kernel.org/kvm/20230810090945.16053-2-cloudliang@xxxxxxxxxxx/ Changelog: v3: - Rebased to 74c2185c5b74(tag: kvm-x86-next-2023.08.02) - Add a new patch to test AMD PMU legacy four performance counters. - Add a new patch to test AMD Guest PerfMonV2. - Refactor code to simplify logic and improve readability. - Use TEST_ASSERT_EQ() instead of ASSERT_EQ() when checking return values. - Add vcpu_set_cpuid_property() helper for setting properties. (Sean) - Add arch_event_is_supported() helper to check if an event is supported. (Sean) - Add fixed_counter_is_supported() helper to check if a fixed counter is supported. (Sean) - Drop macros that hides important details. (Sean) - Use enumerations to avoid performance events magic numbers. (Sean) - TEST_FAIL() instead of TEST_ASSERT() in run_vcpu() wrapper. (Sean) - Update variable names for better readability and consistency. (Sean) - Rename functions to better reflect their purpose. (Sean) - Improve comments for better clarity and understanding of the code. (Sean, Jim) v2: https://lore.kernel.org/kvm/20230530134248.23998-1-cloudliang@xxxxxxxxxxx/T/ Jinrong Liang (11): KVM: selftests: Add vcpu_set_cpuid_property() to set properties KVM: selftests: Add pmu.h for PMU events and common masks KVM: selftests: Test Intel PMU architectural events on gp counters KVM: selftests: Test Intel PMU architectural events on fixed counters KVM: selftests: Test consistency of CPUID with num of gp counters KVM: selftests: Test consistency of CPUID with num of fixed counters KVM: selftests: Test Intel supported fixed counters bit mask KVM: selftests: Test consistency of PMU MSRs with Intel PMU version KVM: selftests: Add x86 feature and properties for AMD PMU in processor.h KVM: selftests: Test AMD PMU events on legacy four performance counters KVM: selftests: Test AMD Guest PerfMonV2 tools/testing/selftests/kvm/Makefile | 1 + .../selftests/kvm/include/x86_64/pmu.h | 124 +++++ .../selftests/kvm/include/x86_64/processor.h | 11 + .../selftests/kvm/lib/x86_64/processor.c | 14 + .../kvm/x86_64/pmu_basic_functionality_test.c | 505 ++++++++++++++++++ 5 files changed, 655 insertions(+) create mode 100644 tools/testing/selftests/kvm/include/x86_64/pmu.h create mode 100644 tools/testing/selftests/kvm/x86_64/pmu_basic_functionality_test.c base-commit: 74c2185c5b74fd0ae91133ad5afe8684f6a02b91 prerequisite-patch-id: 8718ffb8c05e453db9aae9896787cb6650d3cd52 -- 2.39.3
