KVM: x86: Set PEBS_UNAVAIL in IA32_MISC_ENABLE when PEBS is enabled

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The bit 12 represents "Processor Event Based Sampling Unavailable (RO)" :
	1 = PEBS is not supported.
	0 = PEBS is supported.

A write to this PEBS_UNAVL available bit will bring #GP(0) when guest PEBS
is enabled. Some PEBS drivers in guest may care about this bit.

Signed-off-by: Like Xu <like.xu@linux.intel.com>
Message-Id: <20220411101946.20262-13-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Like Xu 2022-04-11 18:19:41 +08:00 • committed by Paolo Bonzini

parent 902caeb684

commit d10551738f

2 changed files with 9 additions and 1 deletions

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2

arch/x86/kvm/vmx/pmu_intel.c

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8

arch/x86/kvm/x86.c

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