KVM: x86: add a tracepoint for APICv/AVIC interrupt delivery
This allows to see how many interrupts were delivered via the APICv/AVIC from the host. Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20211209115440.394441-3-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -1100,6 +1100,9 @@ static int __apic_accept_irq(struct kvm_lapic *apic, int delivery_mode,
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kvm_lapic_set_irr(vector, apic);
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kvm_make_request(KVM_REQ_EVENT, vcpu);
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kvm_vcpu_kick(vcpu);
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} else {
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trace_kvm_apicv_accept_irq(vcpu->vcpu_id, delivery_mode,
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trig_mode, vector);
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}
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break;
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@ -1356,6 +1356,30 @@ TRACE_EVENT(kvm_apicv_update_request,
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__entry->bit)
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);
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TRACE_EVENT(kvm_apicv_accept_irq,
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TP_PROTO(__u32 apicid, __u16 dm, __u16 tm, __u8 vec),
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TP_ARGS(apicid, dm, tm, vec),
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TP_STRUCT__entry(
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__field( __u32, apicid )
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__field( __u16, dm )
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__field( __u16, tm )
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__field( __u8, vec )
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),
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TP_fast_assign(
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__entry->apicid = apicid;
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__entry->dm = dm;
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__entry->tm = tm;
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__entry->vec = vec;
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),
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TP_printk("apicid %x vec %u (%s|%s)",
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__entry->apicid, __entry->vec,
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__print_symbolic((__entry->dm >> 8 & 0x7), kvm_deliver_mode),
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__entry->tm ? "level" : "edge")
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);
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/*
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* Tracepoint for AMD AVIC
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*/
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@ -12693,6 +12693,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_avic_unaccelerated_access);
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EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_avic_incomplete_ipi);
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EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_avic_ga_log);
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EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_apicv_update_request);
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EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_apicv_accept_irq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_vmgexit_enter);
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EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_vmgexit_exit);
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EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_vmgexit_msr_protocol_enter);
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