linux/tools/perf/util/kvm-stat.h
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   1#ifndef __PERF_KVM_STAT_H
   2#define __PERF_KVM_STAT_H
   3
   4#include "../perf.h"
   5#include "evsel.h"
   6#include "evlist.h"
   7#include "session.h"
   8#include "tool.h"
   9#include "stat.h"
  10
  11struct event_key {
  12        #define INVALID_KEY     (~0ULL)
  13        u64 key;
  14        int info;
  15        struct exit_reasons_table *exit_reasons;
  16};
  17
  18struct kvm_event_stats {
  19        u64 time;
  20        struct stats stats;
  21};
  22
  23struct kvm_event {
  24        struct list_head hash_entry;
  25        struct rb_node rb;
  26
  27        struct event_key key;
  28
  29        struct kvm_event_stats total;
  30
  31        #define DEFAULT_VCPU_NUM 8
  32        int max_vcpu;
  33        struct kvm_event_stats *vcpu;
  34};
  35
  36typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
  37
  38struct kvm_event_key {
  39        const char *name;
  40        key_cmp_fun key;
  41};
  42
  43struct perf_kvm_stat;
  44
  45struct child_event_ops {
  46        void (*get_key)(struct perf_evsel *evsel,
  47                        struct perf_sample *sample,
  48                        struct event_key *key);
  49        const char *name;
  50};
  51
  52struct kvm_events_ops {
  53        bool (*is_begin_event)(struct perf_evsel *evsel,
  54                               struct perf_sample *sample,
  55                               struct event_key *key);
  56        bool (*is_end_event)(struct perf_evsel *evsel,
  57                             struct perf_sample *sample, struct event_key *key);
  58        struct child_event_ops *child_ops;
  59        void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
  60                           char *decode);
  61        const char *name;
  62};
  63
  64struct exit_reasons_table {
  65        unsigned long exit_code;
  66        const char *reason;
  67};
  68
  69#define EVENTS_BITS             12
  70#define EVENTS_CACHE_SIZE       (1UL << EVENTS_BITS)
  71
  72struct perf_kvm_stat {
  73        struct perf_tool    tool;
  74        struct record_opts  opts;
  75        struct perf_evlist  *evlist;
  76        struct perf_session *session;
  77
  78        const char *file_name;
  79        const char *report_event;
  80        const char *sort_key;
  81        int trace_vcpu;
  82
  83        struct exit_reasons_table *exit_reasons;
  84        const char *exit_reasons_isa;
  85
  86        struct kvm_events_ops *events_ops;
  87        key_cmp_fun compare;
  88        struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
  89
  90        u64 total_time;
  91        u64 total_count;
  92        u64 lost_events;
  93        u64 duration;
  94
  95        struct intlist *pid_list;
  96
  97        struct rb_root result;
  98
  99        int timerfd;
 100        unsigned int display_time;
 101        bool live;
 102        bool force;
 103};
 104
 105struct kvm_reg_events_ops {
 106        const char *name;
 107        struct kvm_events_ops *ops;
 108};
 109
 110void exit_event_get_key(struct perf_evsel *evsel,
 111                        struct perf_sample *sample,
 112                        struct event_key *key);
 113bool exit_event_begin(struct perf_evsel *evsel,
 114                      struct perf_sample *sample,
 115                      struct event_key *key);
 116bool exit_event_end(struct perf_evsel *evsel,
 117                    struct perf_sample *sample,
 118                    struct event_key *key);
 119void exit_event_decode_key(struct perf_kvm_stat *kvm,
 120                           struct event_key *key,
 121                           char *decode);
 122
 123bool kvm_exit_event(struct perf_evsel *evsel);
 124bool kvm_entry_event(struct perf_evsel *evsel);
 125int setup_kvm_events_tp(struct perf_kvm_stat *kvm);
 126
 127#define define_exit_reasons_table(name, symbols)        \
 128        static struct exit_reasons_table name[] = {     \
 129                symbols, { -1, NULL }                   \
 130        }
 131
 132/*
 133 * arch specific callbacks and data structures
 134 */
 135int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
 136
 137extern const char *kvm_events_tp[];
 138extern struct kvm_reg_events_ops kvm_reg_events_ops[];
 139extern const char * const kvm_skip_events[];
 140extern const char *vcpu_id_str;
 141extern const int decode_str_len;
 142extern const char *kvm_exit_reason;
 143extern const char *kvm_entry_trace;
 144extern const char *kvm_exit_trace;
 145
 146#endif /* __PERF_KVM_STAT_H */
 147