diff options
| author | Feng Wu <feng.wu@intel.com> | 2016-01-25 16:53:35 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-02-09 13:24:43 +0100 |
| commit | b6ce978067e75187d3c30f59b60d390a29374fab (patch) | |
| tree | 691abd89dd9889ba59ff8f29795b7d77acc4fac8 | |
| parent | 6228a0da805792c2f25b32e9b926d0810a6648ab (diff) | |
| download | lwn-b6ce978067e75187d3c30f59b60d390a29374fab.tar.gz lwn-b6ce978067e75187d3c30f59b60d390a29374fab.zip | |
KVM/VMX: Add host irq information in trace event when updating IRTE for posted interrupts
Add host irq information in trace event, so we can better understand
which irq is in posted mode.
Signed-off-by: Feng Wu <feng.wu@intel.com>
Reviewed-by: Radim Krcmar <rkrcmar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/kvm/trace.h | 12 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 |
2 files changed, 9 insertions, 5 deletions
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index ad9f6a23f139..2f1ea2f61e1f 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -996,11 +996,13 @@ TRACE_EVENT(kvm_enter_smm, * Tracepoint for VT-d posted-interrupts. */ TRACE_EVENT(kvm_pi_irte_update, - TP_PROTO(unsigned int vcpu_id, unsigned int gsi, - unsigned int gvec, u64 pi_desc_addr, bool set), - TP_ARGS(vcpu_id, gsi, gvec, pi_desc_addr, set), + TP_PROTO(unsigned int host_irq, unsigned int vcpu_id, + unsigned int gsi, unsigned int gvec, + u64 pi_desc_addr, bool set), + TP_ARGS(host_irq, vcpu_id, gsi, gvec, pi_desc_addr, set), TP_STRUCT__entry( + __field( unsigned int, host_irq ) __field( unsigned int, vcpu_id ) __field( unsigned int, gsi ) __field( unsigned int, gvec ) @@ -1009,6 +1011,7 @@ TRACE_EVENT(kvm_pi_irte_update, ), TP_fast_assign( + __entry->host_irq = host_irq; __entry->vcpu_id = vcpu_id; __entry->gsi = gsi; __entry->gvec = gvec; @@ -1016,9 +1019,10 @@ TRACE_EVENT(kvm_pi_irte_update, __entry->set = set; ), - TP_printk("VT-d PI is %s for this irq, vcpu %u, gsi: 0x%x, " + TP_printk("VT-d PI is %s for irq %u, vcpu %u, gsi: 0x%x, " "gvec: 0x%x, pi_desc_addr: 0x%llx", __entry->set ? "enabled and being updated" : "disabled", + __entry->host_irq, __entry->vcpu_id, __entry->gsi, __entry->gvec, diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a4b4aa4cdc54..164eb9e1678b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -10783,7 +10783,7 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq, vcpu_info.pi_desc_addr = __pa(vcpu_to_pi_desc(vcpu)); vcpu_info.vector = irq.vector; - trace_kvm_pi_irte_update(vcpu->vcpu_id, e->gsi, + trace_kvm_pi_irte_update(vcpu->vcpu_id, host_irq, e->gsi, vcpu_info.vector, vcpu_info.pi_desc_addr, set); if (set) |