KVM: x86/pmu: Drop amd_event_mapping[] in the KVM context

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All gp or fixed counters have been reprogrammed using PERF_TYPE_RAW,
which means that the table that maps perf_hw_id to event select values is
no longer useful, at least for AMD.

For Intel, the logic to check if the pmu event reported by Intel cpuid is
not available is still required, in which case pmc_perf_hw_id() could be
renamed to hw_event_is_unavail() and a bool value is returned to replace
the semantics of "PERF_COUNT_HW_MAX+1".

Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20220518132512.37864-12-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

Like Xu 2022-05-18 21:25:12 +08:00 • committed by Paolo Bonzini

parent 08dca7a8e7

commit 7aadaa988c

5 changed files with 12 additions and 65 deletions

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2

arch/x86/include/asm/kvm-x86-pmu-ops.h

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6

arch/x86/kvm/pmu.c

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2

arch/x86/kvm/pmu.h

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56

arch/x86/kvm/svm/pmu.c

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11

arch/x86/kvm/vmx/pmu_intel.c

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