KVM: X86: Trace vcpu_id for vmexit

Tracing the ID helps to pair vmenters and vmexits for guests with
multiple vCPUs.

Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 6ce853a2e867..4ec33bdc2439 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -232,17 +232,20 @@ TRACE_EVENT(kvm_exit,
                 __field(        u32,            isa             )
                 __field(        u64,            info1           )
                 __field(        u64,            info2           )
+                __field(        unsigned int,   vcpu_id         )
         ),
 
         TP_fast_assign(
                 __entry->exit_reason    = exit_reason;
                 __entry->guest_rip      = kvm_rip_read(vcpu);
                 __entry->isa            = isa;
+                __entry->vcpu_id        = vcpu->vcpu_id;
                 kvm_x86_ops->get_exit_info(vcpu, &__entry->info1,
                                            &__entry->info2);
         ),
 
-        TP_printk("reason %s rip 0x%lx info %llx %llx",
+        TP_printk("vcpu %u reason %s rip 0x%lx info %llx %llx",
+                  __entry->vcpu_id,
                  (__entry->isa == KVM_ISA_VMX) ?
                  __print_symbolic(__entry->exit_reason, VMX_EXIT_REASONS) :
                  __print_symbolic(__entry->exit_reason, SVM_EXIT_REASONS),