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| author | Avi Kivity <avi@redhat.com> | 2010-11-18 12:09:54 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 10:29:41 +0100 |
| commit | 586f9607962cd982293759a4e95ff06e75be5225 (patch) | |
| tree | efce3a218f0268e4a066d1621d594951d6ac569e /arch/x86/kvm/trace.h | |
| parent | KVM: Record instruction set in kvm_exit tracepoint (diff) | |
| download | linux-586f9607962cd982293759a4e95ff06e75be5225.tar.xz linux-586f9607962cd982293759a4e95ff06e75be5225.zip | |
KVM: Add instruction-set-specific exit qualifications to kvm_exit trace
The exit reason alone is insufficient to understand exactly why an exit
occured; add ISA-specific trace parameters for additional information.
Because fetching these parameters is expensive on vmx, and because these
parameters are fetched even if tracing is disabled, we fetch the
parameters via a callback instead of as traditional trace arguments.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/trace.h')
| -rw-r--r-- | arch/x86/kvm/trace.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index 10610229b248..1357d7cf4ec8 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -192,18 +192,22 @@ TRACE_EVENT(kvm_exit, __field( unsigned int, exit_reason ) __field( unsigned long, guest_rip ) __field( u32, isa ) + __field( u64, info1 ) + __field( u64, info2 ) ), TP_fast_assign( __entry->exit_reason = exit_reason; __entry->guest_rip = kvm_rip_read(vcpu); __entry->isa = isa; + kvm_x86_ops->get_exit_info(vcpu, &__entry->info1, + &__entry->info2); ), - TP_printk("reason %s rip 0x%lx", + TP_printk("reason %s rip 0x%lx info %llx %llx", ftrace_print_symbols_seq(p, __entry->exit_reason, kvm_x86_ops->exit_reasons_str), - __entry->guest_rip) + __entry->guest_rip, __entry->info1, __entry->info2) ); /* |