diff options
| -rw-r--r-- | arch/x86/include/uapi/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/x86/include/uapi/asm/kvm_perf.h | 16 | ||||
| -rw-r--r-- | tools/perf/MANIFEST | 1 | ||||
| -rw-r--r-- | tools/perf/builtin-kvm.c | 34 |
4 files changed, 34 insertions, 18 deletions
diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild index 09409c44f9a5..3dec769cadf7 100644 --- a/arch/x86/include/uapi/asm/Kbuild +++ b/arch/x86/include/uapi/asm/Kbuild @@ -22,6 +22,7 @@ header-y += ipcbuf.h header-y += ist.h header-y += kvm.h header-y += kvm_para.h +header-y += kvm_perf.h header-y += ldt.h header-y += mce.h header-y += mman.h diff --git a/arch/x86/include/uapi/asm/kvm_perf.h b/arch/x86/include/uapi/asm/kvm_perf.h new file mode 100644 index 000000000000..3bb964f88aa1 --- /dev/null +++ b/arch/x86/include/uapi/asm/kvm_perf.h @@ -0,0 +1,16 @@ +#ifndef _ASM_X86_KVM_PERF_H +#define _ASM_X86_KVM_PERF_H + +#include <asm/svm.h> +#include <asm/vmx.h> +#include <asm/kvm.h> + +#define DECODE_STR_LEN 20 + +#define VCPU_ID "vcpu_id" + +#define KVM_ENTRY_TRACE "kvm:kvm_entry" +#define KVM_EXIT_TRACE "kvm:kvm_exit" +#define KVM_EXIT_REASON "exit_reason" + +#endif /* _ASM_X86_KVM_PERF_H */ diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index 45da209b6ed3..02b485d619cd 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -37,3 +37,4 @@ arch/x86/include/asm/kvm_host.h arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/kvm.h +arch/x86/include/uapi/asm/kvm_perf.h diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 41dbeaf8cc11..6d73346ef2a6 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -30,9 +30,7 @@ #include <math.h> #ifdef HAVE_KVM_STAT_SUPPORT -#include <asm/svm.h> -#include <asm/vmx.h> -#include <asm/kvm.h> +#include <asm/kvm_perf.h> struct event_key { #define INVALID_KEY (~0ULL) @@ -75,7 +73,7 @@ struct kvm_events_ops { bool (*is_end_event)(struct perf_evsel *evsel, struct perf_sample *sample, struct event_key *key); void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, - char decode[20]); + char *decode); const char *name; }; @@ -126,12 +124,12 @@ static void exit_event_get_key(struct perf_evsel *evsel, struct event_key *key) { key->info = 0; - key->key = perf_evsel__intval(evsel, sample, "exit_reason"); + key->key = perf_evsel__intval(evsel, sample, KVM_EXIT_REASON); } static bool kvm_exit_event(struct perf_evsel *evsel) { - return !strcmp(evsel->name, "kvm:kvm_exit"); + return !strcmp(evsel->name, KVM_EXIT_TRACE); } static bool exit_event_begin(struct perf_evsel *evsel, @@ -147,7 +145,7 @@ static bool exit_event_begin(struct perf_evsel *evsel, static bool kvm_entry_event(struct perf_evsel *evsel) { - return !strcmp(evsel->name, "kvm:kvm_entry"); + return !strcmp(evsel->name, KVM_ENTRY_TRACE); } static bool exit_event_end(struct perf_evsel *evsel, @@ -182,12 +180,12 @@ static const char *get_exit_reason(struct perf_kvm_stat *kvm, static void exit_event_decode_key(struct perf_kvm_stat *kvm, struct event_key *key, - char decode[20]) + char *decode) { const char *exit_reason = get_exit_reason(kvm, kvm->exit_reasons, key->key); - scnprintf(decode, 20, "%s", exit_reason); + scnprintf(decode, DECODE_STR_LEN, "%s", exit_reason); } static struct kvm_events_ops exit_events = { @@ -249,9 +247,9 @@ static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample, static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, struct event_key *key, - char decode[20]) + char *decode) { - scnprintf(decode, 20, "%#lx:%s", (unsigned long)key->key, + scnprintf(decode, DECODE_STR_LEN, "%#lx:%s", (unsigned long)key->key, key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R"); } @@ -292,9 +290,9 @@ static bool ioport_event_end(struct perf_evsel *evsel, static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, struct event_key *key, - char decode[20]) + char *decode) { - scnprintf(decode, 20, "%#llx:%s", (unsigned long long)key->key, + scnprintf(decode, DECODE_STR_LEN, "%#llx:%s", (unsigned long long)key->key, key->info ? "POUT" : "PIN"); } @@ -524,7 +522,7 @@ static bool handle_end_event(struct perf_kvm_stat *kvm, time_diff = sample->time - time_begin; if (kvm->duration && time_diff > kvm->duration) { - char decode[32]; + char decode[DECODE_STR_LEN]; kvm->events_ops->decode_key(kvm, &event->key, decode); if (strcmp(decode, "HLT")) { @@ -552,7 +550,7 @@ struct vcpu_event_record *per_vcpu_record(struct thread *thread, return NULL; } - vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, "vcpu_id"); + vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, VCPU_ID); thread->priv = vcpu_record; } @@ -739,7 +737,7 @@ static void show_timeofday(void) static void print_result(struct perf_kvm_stat *kvm) { - char decode[20]; + char decode[DECODE_STR_LEN]; struct kvm_event *event; int vcpu = kvm->trace_vcpu; @@ -750,7 +748,7 @@ static void print_result(struct perf_kvm_stat *kvm) pr_info("\n\n"); print_vcpu_info(kvm); - pr_info("%20s ", kvm->events_ops->name); + pr_info("%*s ", DECODE_STR_LEN, kvm->events_ops->name); pr_info("%10s ", "Samples"); pr_info("%9s ", "Samples%"); @@ -769,7 +767,7 @@ static void print_result(struct perf_kvm_stat *kvm) min = get_event_min(event, vcpu); kvm->events_ops->decode_key(kvm, &event->key, decode); - pr_info("%20s ", decode); + pr_info("%*s ", DECODE_STR_LEN, decode); pr_info("%10llu ", (unsigned long long)ecount); pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); |