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KVM: x86: Raise #GP when guest vCPU do not support PMU
authorLiran Alon <[email protected]>
Mon, 25 Mar 2019 19:10:17 +0000 (21:10 +0200)
committerPaolo Bonzini <[email protected]>
Tue, 16 Apr 2019 13:37:34 +0000 (15:37 +0200)
commit672ff6cff80ca43bf3258410d2b887036969df5f
treef0d20fbf2e1af6a187d742b9c67b448d3cca50a3tree | snapshot
parent1811d979c71621aafc7b879477202d286f7e863bcommit | diff
KVM: x86: Raise #GP when guest vCPU do not support PMU

Before this change, reading a VMware pseduo PMC will succeed even when
PMU is not supported by guest. This can easily be seen by running
kvm-unit-test vmware_backdoors with "-cpu host,-pmu" option.

Reviewed-by: Mihai Carabas <[email protected]>
Signed-off-by: Liran Alon <[email protected]>
Signed-off-by: Paolo Bonzini <[email protected]>
arch/x86/kvm/pmu.c diff | blob | blame | history
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