diff options
Diffstat (limited to 'tools/perf/util/kvm-stat.h')
| -rw-r--r-- | tools/perf/util/kvm-stat.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/tools/perf/util/kvm-stat.h b/tools/perf/util/kvm-stat.h new file mode 100644 index 0000000000..3e9ac754c3 --- /dev/null +++ b/tools/perf/util/kvm-stat.h @@ -0,0 +1,191 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __PERF_KVM_STAT_H +#define __PERF_KVM_STAT_H + +#ifdef HAVE_KVM_STAT_SUPPORT + +#include "tool.h" +#include "sort.h" +#include "stat.h" +#include "symbol.h" +#include "record.h" + +#include <stdlib.h> +#include <linux/zalloc.h> + +#define KVM_EVENT_NAME_LEN 40 + +struct evsel; +struct evlist; +struct perf_session; + +struct event_key { + #define INVALID_KEY (~0ULL) + u64 key; + int info; + struct exit_reasons_table *exit_reasons; +}; + +struct kvm_info { + char name[KVM_EVENT_NAME_LEN]; + refcount_t refcnt; +}; + +struct kvm_event_stats { + u64 time; + struct stats stats; +}; + +struct perf_kvm_stat; + +struct kvm_event { + struct list_head hash_entry; + + struct perf_kvm_stat *perf_kvm; + struct event_key key; + + struct kvm_event_stats total; + + #define DEFAULT_VCPU_NUM 8 + int max_vcpu; + struct kvm_event_stats *vcpu; + + struct hist_entry he; +}; + +struct child_event_ops { + void (*get_key)(struct evsel *evsel, + struct perf_sample *sample, + struct event_key *key); + const char *name; +}; + +struct kvm_events_ops { + bool (*is_begin_event)(struct evsel *evsel, + struct perf_sample *sample, + struct event_key *key); + bool (*is_end_event)(struct evsel *evsel, + struct perf_sample *sample, struct event_key *key); + struct child_event_ops *child_ops; + void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, + char *decode); + const char *name; +}; + +struct exit_reasons_table { + unsigned long exit_code; + const char *reason; +}; + +struct perf_kvm_stat { + struct perf_tool tool; + struct record_opts opts; + struct evlist *evlist; + struct perf_session *session; + + const char *file_name; + const char *report_event; + const char *sort_key; + int trace_vcpu; + + /* Used when process events */ + struct addr_location al; + + struct exit_reasons_table *exit_reasons; + const char *exit_reasons_isa; + + struct kvm_events_ops *events_ops; + + u64 total_time; + u64 total_count; + u64 lost_events; + u64 duration; + + struct intlist *pid_list; + + int timerfd; + unsigned int display_time; + bool live; + bool force; + bool use_stdio; +}; + +struct kvm_reg_events_ops { + const char *name; + struct kvm_events_ops *ops; +}; + +void exit_event_get_key(struct evsel *evsel, + struct perf_sample *sample, + struct event_key *key); +bool exit_event_begin(struct evsel *evsel, + struct perf_sample *sample, + struct event_key *key); +bool exit_event_end(struct evsel *evsel, + struct perf_sample *sample, + struct event_key *key); +void exit_event_decode_key(struct perf_kvm_stat *kvm, + struct event_key *key, + char *decode); + +bool kvm_exit_event(struct evsel *evsel); +bool kvm_entry_event(struct evsel *evsel); +int setup_kvm_events_tp(struct perf_kvm_stat *kvm); + +#define define_exit_reasons_table(name, symbols) \ + static struct exit_reasons_table name[] = { \ + symbols, { -1, NULL } \ + } + +/* + * arch specific callbacks and data structures + */ +int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid); + +extern const char *kvm_events_tp[]; +extern struct kvm_reg_events_ops kvm_reg_events_ops[]; +extern const char * const kvm_skip_events[]; +extern const char *vcpu_id_str; +extern const char *kvm_exit_reason; +extern const char *kvm_entry_trace; +extern const char *kvm_exit_trace; + +static inline struct kvm_info *kvm_info__get(struct kvm_info *ki) +{ + if (ki) + refcount_inc(&ki->refcnt); + return ki; +} + +static inline void kvm_info__put(struct kvm_info *ki) +{ + if (ki && refcount_dec_and_test(&ki->refcnt)) + free(ki); +} + +static inline void __kvm_info__zput(struct kvm_info **ki) +{ + kvm_info__put(*ki); + *ki = NULL; +} + +#define kvm_info__zput(ki) __kvm_info__zput(&ki) + +static inline struct kvm_info *kvm_info__new(void) +{ + struct kvm_info *ki; + + ki = zalloc(sizeof(*ki)); + if (ki) + refcount_set(&ki->refcnt, 1); + + return ki; +} + +#else /* HAVE_KVM_STAT_SUPPORT */ +// We use this unconditionally in hists__findnew_entry() and hist_entry__delete() +#define kvm_info__zput(ki) do { } while (0) +#endif /* HAVE_KVM_STAT_SUPPORT */ + +extern int kvm_add_default_arch_event(int *argc, const char **argv); +#endif /* __PERF_KVM_STAT_H */ |