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| author | Wanpeng Li <wanpengli@tencent.com> | 2019-08-05 10:03:24 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-08-22 10:09:26 +0200 |
| commit | b382f44e98506bcb00acada0e30151a73e782a93 (patch) | |
| tree | f49d2e2cc407beb3902a7d4c04858b491c0b1872 /arch/x86/kvm/x86.c | |
| parent | 92735b1b3313c97d24b54492a21083c75206e6ed (diff) | |
| download | lwn-b382f44e98506bcb00acada0e30151a73e782a93.tar.gz lwn-b382f44e98506bcb00acada0e30151a73e782a93.zip | |
KVM: X86: Add pv tlb shootdown tracepoint
Add pv tlb shootdown tracepoint.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index cc1e92da8f3c..b4cfd786d0b6 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2459,6 +2459,8 @@ static void record_steal_time(struct kvm_vcpu *vcpu) * Doing a TLB flush here, on the guest's behalf, can avoid * expensive IPIs. */ + trace_kvm_pv_tlb_flush(vcpu->vcpu_id, + vcpu->arch.st.steal.preempted & KVM_VCPU_FLUSH_TLB); if (xchg(&vcpu->arch.st.steal.preempted, 0) & KVM_VCPU_FLUSH_TLB) kvm_vcpu_flush_tlb(vcpu, false); |