KVM: x86/pmu: Track mediated PMU counters with mode-specific enables

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Instead of always checking of a counter needs to be disabled for
mode-specific reasons (e.g. Host-Only/Guest-Only bits in SVM), add a
bitmap to track such counters. Set the bit for counters using either
Host-Only or Guest-Only bits in EVENTSEL on SVM.

This bitmap will also be reused in following changes to selectively
apply changes to such counters.

Signed-off-by: Yosry Ahmed <yosry@kernel.org>
Link: https://patch.msgid.link/20260527234711.4175166-12-yosry@kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Yosry Ahmed 2026-05-27 23:47:05 +00:00 • committed by Sean Christopherson

parent 2ed72677a5

commit c0d4c9c54c

4 changed files with 16 additions and 2 deletions

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2

arch/x86/include/asm/kvm_host.h

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1

arch/x86/kvm/pmu.c

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9

arch/x86/kvm/pmu.h

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6

arch/x86/kvm/svm/pmu.c

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