This patch adds a special tracepoint for the event that a nested #vmexit is injected because kvm wants to inject an interrupt into the guest. Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx> --- arch/x86/kvm/svm.c | 1 + arch/x86/kvm/trace.h | 18 ++++++++++++++++++ arch/x86/kvm/x86.c | 1 + 3 files changed, 20 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 4de75e3..a03dba1 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1387,6 +1387,7 @@ static inline int nested_svm_intr(struct vcpu_svm *svm) * the #vmexit here. */ set_bit(KVM_REQ_VMEXIT, &svm->vcpu.requests); + trace_kvm_nested_intr_vmexit(svm->vmcb->save.rip); return 1; } diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index a00b235..20248a1 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -451,6 +451,24 @@ TRACE_EVENT(kvm_nested_vmexit_inject, __entry->exit_info1, __entry->exit_info2, __entry->exit_int_info, __entry->exit_int_info_err) ); + +/* + * Tracepoint for nested #vmexit because of interrupt pending + */ +TRACE_EVENT(kvm_nested_intr_vmexit, + TP_PROTO(__u64 rip), + TP_ARGS(rip), + + TP_STRUCT__entry( + __field( __u64, rip ) + ), + + TP_fast_assign( + __entry->rip = rip + ), + + TP_printk("rip=0x%016llx\n", __entry->rip) +); #endif /* _TRACE_KVM_H */ /* This part must be outside protection */ diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c7ea2d8..e0a8517 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5000,3 +5000,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_cr); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmrun); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmexit); EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_vmexit_inject); +EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_nested_intr_vmexit); -- 1.6.4.3 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html