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kvm/x86: Hyper-V SynIC tracepoints

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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
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@@ -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)