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kvm/x86: Hyper-V SynIC tracepoints 

Trace the following Hyper SynIC events:
* set msr
* set sint irq
* ack sint
* sint irq eoi

Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com>
CC: Gleb Natapov <gleb@kernel.org>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Roman Kagan <rkagan@virtuozzo.com>
CC: Denis V. Lunev <den@openvz.org>
CC: qemu-devel@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Andrey Smetanin 2015-12-23 16:53:59 +03:00 committed by Paolo Bonzini
parent f3b138c5d8
commit 18659a9cb1
2 changed files with 98 additions and 5 deletions
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10
arch/x86/kvm/hyperv.c
View File

@ -152,7 +152,7 @@ static void kvm_hv_notify_acked_sint(struct kvm_vcpu *vcpu, u32 sint)
struct kvm_vcpu_hv_stimer *stimer;
int gsi, idx, stimers_pending;
vcpu_debug(vcpu, "Hyper-V SynIC acked sint %d\n", sint);
trace_kvm_hv_notify_acked_sint(vcpu->vcpu_id, sint);
if (synic->msg_page & HV_SYNIC_SIMP_ENABLE)
synic_clear_sint_msg_pending(synic, sint);
@ -202,8 +202,8 @@ static int synic_set_msr(struct kvm_vcpu_hv_synic *synic,
if (!synic->active)
return 1;
vcpu_debug(vcpu, "Hyper-V SynIC set msr 0x%x 0x%llx host %d\n",
msr, data, host);
trace_kvm_hv_synic_set_msr(vcpu->vcpu_id, msr, data, host);
ret = 0;
switch (msr) {
case HV_X64_MSR_SCONTROL:
@ -312,7 +312,7 @@ int synic_set_irq(struct kvm_vcpu_hv_synic *synic, u32 sint)
irq.level = 1;
ret = kvm_irq_delivery_to_apic(vcpu->kvm, NULL, &irq, NULL);
vcpu_debug(vcpu, "Hyper-V SynIC set irq ret %d\n", ret);
trace_kvm_hv_synic_set_irq(vcpu->vcpu_id, sint, irq.vector, ret);
return ret;
}
@ -332,7 +332,7 @@ void kvm_hv_synic_send_eoi(struct kvm_vcpu *vcpu, int vector)
struct kvm_vcpu_hv_synic *synic = vcpu_to_synic(vcpu);
int i;
vcpu_debug(vcpu, "Hyper-V SynIC send eoi vec %d\n", vector);
trace_kvm_hv_synic_send_eoi(vcpu->vcpu_id, vector);
for (i = 0; i < ARRAY_SIZE(synic->sint); i++)
if (synic_get_sint_vector(synic_read_sint(synic, i)) == vector)

93
arch/x86/kvm/trace.h
View File

@ -1025,6 +1025,99 @@ TRACE_EVENT(kvm_pi_irte_update,
__entry->pi_desc_addr)
);
/*
* Tracepoint for kvm_hv_notify_acked_sint.
*/
TRACE_EVENT(kvm_hv_notify_acked_sint,
TP_PROTO(int vcpu_id, u32 sint),
TP_ARGS(vcpu_id, sint),
TP_STRUCT__entry(
__field(int, vcpu_id)
__field(u32, sint)
),
TP_fast_assign(
__entry->vcpu_id = vcpu_id;
__entry->sint = sint;
),
TP_printk("vcpu_id %d sint %u", __entry->vcpu_id, __entry->sint)
);
/*
* Tracepoint for synic_set_irq.
*/
TRACE_EVENT(kvm_hv_synic_set_irq,
TP_PROTO(int vcpu_id, u32 sint, int vector, int ret),
TP_ARGS(vcpu_id, sint, vector, ret),
TP_STRUCT__entry(
__field(int, vcpu_id)
__field(u32, sint)
__field(int, vector)
__field(int, ret)
),
TP_fast_assign(
__entry->vcpu_id = vcpu_id;
__entry->sint = sint;
__entry->vector = vector;
__entry->ret = ret;
),
TP_printk("vcpu_id %d sint %u vector %d ret %d",
__entry->vcpu_id, __entry->sint, __entry->vector,
__entry->ret)
);
/*
* Tracepoint for kvm_hv_synic_send_eoi.
*/
TRACE_EVENT(kvm_hv_synic_send_eoi,
TP_PROTO(int vcpu_id, int vector),
TP_ARGS(vcpu_id, vector),
TP_STRUCT__entry(
__field(int, vcpu_id)
__field(u32, sint)
__field(int, vector)
__field(int, ret)
),
TP_fast_assign(
__entry->vcpu_id = vcpu_id;
__entry->vector = vector;
),
TP_printk("vcpu_id %d vector %d", __entry->vcpu_id, __entry->vector)
);
/*
* Tracepoint for synic_set_msr.
*/
TRACE_EVENT(kvm_hv_synic_set_msr,
TP_PROTO(int vcpu_id, u32 msr, u64 data, bool host),
TP_ARGS(vcpu_id, msr, data, host),
TP_STRUCT__entry(
__field(int, vcpu_id)
__field(u32, msr)
__field(u64, data)
__field(bool, host)
),
TP_fast_assign(
__entry->vcpu_id = vcpu_id;
__entry->msr = msr;
__entry->data = data;
__entry->host = host
),
TP_printk("vcpu_id %d msr 0x%x data 0x%llx host %d",
__entry->vcpu_id, __entry->msr, __entry->data, __entry->host)
);
#endif /* _TRACE_KVM_H */
#undef TRACE_INCLUDE_PATH