summaryrefslogtreecommitdiff
path: root/arch/x86/include/asm/kvm_host.h
diff options
context:
space:
mode:
authorLike Xu <likexu@tencent.com>2022-04-11 13:19:33 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2022-06-08 11:47:47 +0300
commitbef6ecca46ac938ffb352d7fa2f6eafd1b6a41be (patch)
tree1575442eff2ef699248c9de76598ea920703ea7f /arch/x86/include/asm/kvm_host.h
parent39a4d779546a993c53cea28e659e8edc9f868af0 (diff)
downloadlinux-bef6ecca46ac938ffb352d7fa2f6eafd1b6a41be.tar.xz
KVM: x86/pmu: Set MSR_IA32_MISC_ENABLE_EMON bit when vPMU is enabled
On Intel platforms, the software can use the IA32_MISC_ENABLE[7] bit to detect whether the processor supports performance monitoring facility. It depends on the PMU is enabled for the guest, and a software write operation to this available bit will be ignored. The proposal to ignore the toggle in KVM is the way to go and that behavior matches bare metal. Signed-off-by: Like Xu <likexu@tencent.com> Message-Id: <20220411101946.20262-5-likexu@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
0 files changed, 0 insertions, 0 deletions