diff options
| author | Radim Krčmář <rkrcmar@redhat.com> | 2014-08-21 20:08:09 +0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-08-21 20:45:23 +0400 |
| commit | 7b46268d29543e313e731606d845e65c17f232e4 (patch) | |
| tree | 86571a9b8ed4dd0972a15cec127945b1a2138807 /arch/x86/kvm/trace.h | |
| parent | b4a2d31da812ce03efaf5d30c6b9d39c1cbd18d8 (diff) | |
| download | linux-7b46268d29543e313e731606d845e65c17f232e4.tar.xz | |
KVM: trace kvm_ple_window grow/shrink
Tracepoint for dynamic PLE window, fired on every potential change.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.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 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index e850a7d332be..1742dfbd26b3 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -848,6 +848,36 @@ TRACE_EVENT(kvm_track_tsc, __print_symbolic(__entry->host_clock, host_clocks)) ); +TRACE_EVENT(kvm_ple_window, + TP_PROTO(bool grow, unsigned int vcpu_id, int new, int old), + TP_ARGS(grow, vcpu_id, new, old), + + TP_STRUCT__entry( + __field( bool, grow ) + __field( unsigned int, vcpu_id ) + __field( int, new ) + __field( int, old ) + ), + + TP_fast_assign( + __entry->grow = grow; + __entry->vcpu_id = vcpu_id; + __entry->new = new; + __entry->old = old; + ), + + TP_printk("vcpu %u: ple_window %d (%s %d)", + __entry->vcpu_id, + __entry->new, + __entry->grow ? "grow" : "shrink", + __entry->old) +); + +#define trace_kvm_ple_window_grow(vcpu_id, new, old) \ + trace_kvm_ple_window(true, vcpu_id, new, old) +#define trace_kvm_ple_window_shrink(vcpu_id, new, old) \ + trace_kvm_ple_window(false, vcpu_id, new, old) + #endif /* CONFIG_X86_64 */ #endif /* _TRACE_KVM_H */ |