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| author |   Tom Lendacky <thomas.lendacky@amd.com> | 2020-12-10 11:09:52 -0600 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2020-12-15 05:20:49 -0500 |
| commit | 59e38b58de283f76c533a2da416abf93bfd9ea41 (patch) | |
| tree | 9a04c8afeefb7b42d7af44c0e9e09041329027ea /arch/x86/kvm/trace.h | |
| parent | KVM: SVM: Create trace events for VMGEXIT processing (diff) | |
| download | linux-dev-59e38b58de283f76c533a2da416abf93bfd9ea41.tar.xz linux-dev-59e38b58de283f76c533a2da416abf93bfd9ea41.zip | |
KVM: SVM: Create trace events for VMGEXIT MSR protocol processing
Add trace events for entry to and exit from VMGEXIT MSR protocol
processing. The vCPU will be common for the trace events. The MSR
protocol processing is guided by the GHCB GPA in the VMCB, so the GHCB
GPA will represent the input and output values for the entry and exit
events, respectively. Additionally, the exit event will contain the
return code for the event.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <c5b3b440c3e0db43ff2fc02813faa94fa54896b0.1607620209.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/trace.h')
| -rw-r--r-- | arch/x86/kvm/trace.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index 7da931a511c9..2de30c20bc26 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -1631,6 +1631,50 @@ TRACE_EVENT(kvm_vmgexit_exit, __entry->info1, __entry->info2) ); +/* + * Tracepoint for the start of VMGEXIT MSR procotol processing + */ +TRACE_EVENT(kvm_vmgexit_msr_protocol_enter, + TP_PROTO(unsigned int vcpu_id, u64 ghcb_gpa), + TP_ARGS(vcpu_id, ghcb_gpa), + + TP_STRUCT__entry( + __field(unsigned int, vcpu_id) + __field(u64, ghcb_gpa) + ), + + TP_fast_assign( + __entry->vcpu_id = vcpu_id; + __entry->ghcb_gpa = ghcb_gpa; + ), + + TP_printk("vcpu %u, ghcb_gpa %016llx", + __entry->vcpu_id, __entry->ghcb_gpa) +); + +/* + * Tracepoint for the end of VMGEXIT MSR procotol processing + */ +TRACE_EVENT(kvm_vmgexit_msr_protocol_exit, + TP_PROTO(unsigned int vcpu_id, u64 ghcb_gpa, int result), + TP_ARGS(vcpu_id, ghcb_gpa, result), + + TP_STRUCT__entry( + __field(unsigned int, vcpu_id) + __field(u64, ghcb_gpa) + __field(int, result) + ), + + TP_fast_assign( + __entry->vcpu_id = vcpu_id; + __entry->ghcb_gpa = ghcb_gpa; + __entry->result = result; + ), + + TP_printk("vcpu %u, ghcb_gpa %016llx, result %d", + __entry->vcpu_id, __entry->ghcb_gpa, __entry->result) +); + #endif /* _TRACE_KVM_H */ #undef TRACE_INCLUDE_PATH |