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| author | Haiwei Li <lihaiwei@tencent.com> | 2020-09-04 14:25:29 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-28 14:57:21 +0300 |
| commit | 95b28ac9db2ac27ac7e92edf2f5bbd6f36138933 (patch) | |
| tree | f3692b79c82eba51feb923675ea00f5ae7540ee6 /arch | |
| parent | 4e810adb5362df366aee10ac05041fc7ba0eb2fe (diff) | |
| download | linux-95b28ac9db2ac27ac7e92edf2f5bbd6f36138933.tar.xz | |
KVM: SVM: Add tracepoint for cr_interception
Add trace_kvm_cr_write and trace_kvm_cr_read for svm.
Signed-off-by: Haiwei Li <lihaiwei@tencent.com>
Message-Id: <f3031602-db3b-c4fe-b719-d402663b0a2b@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/svm/svm.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index a788ce16e4fa..08adac8900e0 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2277,6 +2277,7 @@ static int cr_interception(struct vcpu_svm *svm) if (cr >= 16) { /* mov to cr */ cr -= 16; val = kvm_register_read(&svm->vcpu, reg); + trace_kvm_cr_write(cr, val); switch (cr) { case 0: if (!check_selective_cr0_intercepted(svm, val)) @@ -2322,6 +2323,7 @@ static int cr_interception(struct vcpu_svm *svm) return 1; } kvm_register_write(&svm->vcpu, reg, val); + trace_kvm_cr_read(cr, val); } return kvm_complete_insn_gp(&svm->vcpu, err); } |