KVM: x86: Adjust counter sample period after a wrmsr

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The sample_period of a counter tracks when that counter will
overflow and set global status/trigger a PMI. However this currently
only gets set when the initial counter is created or when a counter is
resumed; this updates the sample period after a wrmsr so running
counters will accurately reflect their new value.

Signed-off-by: Eric Hankland <ehankland@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Eric Hankland 2020-02-21 18:34:13 -08:00 • committed by Paolo Bonzini

parent 7f42aa76d4

commit 168d918f26

3 changed files with 17 additions and 2 deletions

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4

arch/x86/kvm/pmu.c

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9

arch/x86/kvm/pmu.h

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6

arch/x86/kvm/vmx/pmu_intel.c

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