KVM: SVM: Emulate PERF_CNTR_GLOBAL_STATUS_SET for PerfMonV2

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commit 68e61f6fd6 upstream.

Emulate PERF_CNTR_GLOBAL_STATUS_SET when PerfMonV2 is enumerated to the
guest, as the MSR is supposed to exist in all AMD v2 PMUs.

Fixes: 4a2771895c ("KVM: x86/svm/pmu: Add AMD PerfMonV2 support")
Cc: stable@vger.kernel.org
Cc: Sandipan Das <sandipan.das@amd.com>
Link: https://lore.kernel.org/r/20250711172746.1579423-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Sean Christopherson 2025-07-11 10:27:46 -07:00 • committed by Greg Kroah-Hartman

parent 1406a670b3

commit 2ed3b25776

4 changed files with 9 additions and 0 deletions

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

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arch/x86/kvm/pmu.c

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arch/x86/kvm/svm/pmu.c

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arch/x86/kvm/x86.c

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