提交 5bfd8b54 编写于 作者: A Avi Kivity

KVM: Move kvm_exit tracepoint rip reading inside tracepoint

Reading rip is expensive on vmx, so move it inside the tracepoint so we only
incur the cost if tracing is enabled.
Signed-off-by: NAvi Kivity <avi@redhat.com>
上级 d4f64b6c
......@@ -2686,7 +2686,7 @@ static int handle_exit(struct kvm_vcpu *vcpu)
struct kvm_run *kvm_run = vcpu->run;
u32 exit_code = svm->vmcb->control.exit_code;
trace_kvm_exit(exit_code, svm->vmcb->save.rip);
trace_kvm_exit(exit_code, vcpu);
if (unlikely(svm->nested.exit_required)) {
nested_svm_vmexit(svm);
......
......@@ -182,8 +182,8 @@ TRACE_EVENT(kvm_apic,
* Tracepoint for kvm guest exit:
*/
TRACE_EVENT(kvm_exit,
TP_PROTO(unsigned int exit_reason, unsigned long guest_rip),
TP_ARGS(exit_reason, guest_rip),
TP_PROTO(unsigned int exit_reason, struct kvm_vcpu *vcpu),
TP_ARGS(exit_reason, vcpu),
TP_STRUCT__entry(
__field( unsigned int, exit_reason )
......@@ -192,7 +192,7 @@ TRACE_EVENT(kvm_exit,
TP_fast_assign(
__entry->exit_reason = exit_reason;
__entry->guest_rip = guest_rip;
__entry->guest_rip = kvm_rip_read(vcpu);
),
TP_printk("reason %s rip 0x%lx",
......
......@@ -3612,7 +3612,7 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
u32 exit_reason = vmx->exit_reason;
u32 vectoring_info = vmx->idt_vectoring_info;
trace_kvm_exit(exit_reason, kvm_rip_read(vcpu));
trace_kvm_exit(exit_reason, vcpu);
/* If guest state is invalid, start emulating */
if (vmx->emulation_required && emulate_invalid_guest_state)
......
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