This patch adds a tracepoint for a nested #vmexit that gets re-injected to the guest. Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx> --- arch/x86/kvm/svm.c | 6 ++++++ arch/x86/kvm/trace.h | 33 +++++++++++++++++++++++++++++++++ arch/x86/kvm/x86.c | 1 + 3 files changed, 40 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index e759732..4de75e3 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1588,6 +1588,12 @@ static int nested_svm_vmexit(struct vcpu_svm *svm) struct vmcb *hsave = svm->nested.hsave; struct vmcb *vmcb = svm->vmcb; + trace_kvm_nested_vmexit_inject(vmcb->control.exit_code, + vmcb->control.exit_info_1, + vmcb->control.exit_info_2, + vmcb->control.exit_int_info, + vmcb->control.exit_int_info_err); + nested_vmcb = nested_svm_map(svm, svm->nested.vmcb, KM_USER0); if (!nested_vmcb) return 1; diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index a0b89c3..a00b235 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -418,6 +418,39 @@ TRACE_EVENT(kvm_nested_vmexit, __entry->exit_int_info, __entry->exit_int_info_err) ); +/* + * Tracepoint for #VMEXIT reinjected to the guest + */ +TRACE_EVENT(kvm_nested_vmexit_inject, + TP_PROTO(__u32 exit_code, + __u64 exit_info1, __u64 exit_info2, + __u32 exit_int_info, __u32 exit_int_info_err), + TP_ARGS(exit_code, exit_info1, exit_info2, + exit_int_info, exit_int_info_err), + + TP_STRUCT__entry( + __field( __u32, exit_code ) + __field( __u64, exit_info1 ) + __field( __u64, exit_info2 ) + __field( __u32, exit_int_info ) + __field( __u32, exit_int_info_err ) + ), + + TP_fast_assign( + __entry->exit_code = exit_code; + __entry->exit_info1 = exit_info1; + __entry->exit_info2 = exit_info2; + __entry->exit_int_info = exit_int_info; + __entry->exit_int_info_err = exit_int_info_err; + ), + + TP_printk("reason=%s ext_inf1=0x%016llx " + "ext_inf2=0x%016llx ext_int=0x%08x ext_int_err=0x%08x\n", + ftrace_print_symbols_seq(p, __entry->exit_code, + kvm_x86_ops->exit_reasons_str), + __entry->exit_info1, __entry->exit_info2, + __entry->exit_int_info, __entry->exit_int_info_err) +); #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 416282e..c7ea2d8 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4999,3 +4999,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_msr); 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); -- 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