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| author | Like Xu <like.xu@linux.intel.com> | 2021-02-01 08:10:35 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-02-04 13:27:25 +0300 |
| commit | 9254beaafd12e27d48149fab3b16db372bc90ad7 (patch) | |
| tree | 9270a2f798b1339fa0384ecfc2ea14fbd09a4c38 /arch/x86/kvm/vmx/vmx.h | |
| parent | 1b5ac3226a1aa071135fe0ee5d1055d9e88b717c (diff) | |
| download | linux-9254beaafd12e27d48149fab3b16db372bc90ad7.tar.xz | |
KVM: vmx/pmu: Reduce the overhead of LBR pass-through or cancellation
When the LBR records msrs has already been pass-through, there is no
need to call vmx_update_intercept_for_lbr_msrs() again and again, and
vice versa.
Signed-off-by: Like Xu <like.xu@linux.intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Message-Id: <20210201051039.255478-8-like.xu@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.h')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index 41bf9adfcb79..b5679d1e02c4 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -113,6 +113,9 @@ struct lbr_desc { * The records may be inaccurate if the host reclaims the LBR. */ struct perf_event *event; + + /* True if LBRs are marked as not intercepted in the MSR bitmap */ + bool msr_passthrough; }; /* |