tools/perf/util/kvm-stat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_KVM_STAT_H
   3 #define __PERF_KVM_STAT_H
   4
   5 #include "../perf.h"
   6 #include "evsel.h"
   7 #include "evlist.h"
   8 #include "session.h"
   9 #include "tool.h"
  10 #include "stat.h"
  11
  12 struct event_key {
  13         #define INVALID_KEY     (~0ULL)
  14         u64 key;
  15         int info;
  16         struct exit_reasons_table *exit_reasons;
  17 };
  18
  19 struct kvm_event_stats {
  20         u64 time;
  21         struct stats stats;
  22 };
  23
  24 struct kvm_event {
  25         struct list_head hash_entry;
  26         struct rb_node rb;
  27
  28         struct event_key key;
  29
  30         struct kvm_event_stats total;
  31
  32         #define DEFAULT_VCPU_NUM 8
  33         int max_vcpu;
  34         struct kvm_event_stats *vcpu;
  35 };
  36
  37 typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
  38
  39 struct kvm_event_key {
  40         const char *name;
  41         key_cmp_fun key;
  42 };
  43
  44 struct perf_kvm_stat;
  45
  46 struct child_event_ops {
  47         void (*get_key)(struct perf_evsel *evsel,
  48                         struct perf_sample *sample,
  49                         struct event_key *key);
  50         const char *name;
  51 };
  52
  53 struct kvm_events_ops {
  54         bool (*is_begin_event)(struct perf_evsel *evsel,
  55                                struct perf_sample *sample,
  56                                struct event_key *key);
  57         bool (*is_end_event)(struct perf_evsel *evsel,
  58                              struct perf_sample *sample, struct event_key *key);
  59         struct child_event_ops *child_ops;
  60         void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
  61                            char *decode);
  62         const char *name;
  63 };
  64
  65 struct exit_reasons_table {
  66         unsigned long exit_code;
  67         const char *reason;
  68 };
  69
  70 #define EVENTS_BITS             12
  71 #define EVENTS_CACHE_SIZE       (1UL << EVENTS_BITS)
  72
  73 struct perf_kvm_stat {
  74         struct perf_tool    tool;
  75         struct record_opts  opts;
  76         struct perf_evlist  *evlist;
  77         struct perf_session *session;
  78
  79         const char *file_name;
  80         const char *report_event;
  81         const char *sort_key;
  82         int trace_vcpu;
  83
  84         struct exit_reasons_table *exit_reasons;
  85         const char *exit_reasons_isa;
  86
  87         struct kvm_events_ops *events_ops;
  88         key_cmp_fun compare;
  89         struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
  90
  91         u64 total_time;
  92         u64 total_count;
  93         u64 lost_events;
  94         u64 duration;
  95
  96         struct intlist *pid_list;
  97
  98         struct rb_root result;
  99
 100         int timerfd;
 101         unsigned int display_time;
 102         bool live;
 103         bool force;
 104 };
 105
 106 struct kvm_reg_events_ops {
 107         const char *name;
 108         struct kvm_events_ops *ops;
 109 };
 110
 111 void exit_event_get_key(struct perf_evsel *evsel,
 112                         struct perf_sample *sample,
 113                         struct event_key *key);
 114 bool exit_event_begin(struct perf_evsel *evsel,
 115                       struct perf_sample *sample,
 116                       struct event_key *key);
 117 bool exit_event_end(struct perf_evsel *evsel,
 118                     struct perf_sample *sample,
 119                     struct event_key *key);
 120 void exit_event_decode_key(struct perf_kvm_stat *kvm,
 121                            struct event_key *key,
 122                            char *decode);
 123
 124 bool kvm_exit_event(struct perf_evsel *evsel);
 125 bool kvm_entry_event(struct perf_evsel *evsel);
 126 int setup_kvm_events_tp(struct perf_kvm_stat *kvm);
 127
 128 #define define_exit_reasons_table(name, symbols)        \
 129         static struct exit_reasons_table name[] = {     \
 130                 symbols, { -1, NULL }                   \
 131         }
 132
 133 /*
 134  * arch specific callbacks and data structures
 135  */
 136 int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
 137
 138 extern const char *kvm_events_tp[];
 139 extern struct kvm_reg_events_ops kvm_reg_events_ops[];
 140 extern const char * const kvm_skip_events[];
 141 extern const char *vcpu_id_str;
 142 extern const int decode_str_len;
 143 extern const char *kvm_exit_reason;
 144 extern const char *kvm_entry_trace;
 145 extern const char *kvm_exit_trace;
 146
 147 #endif /* __PERF_KVM_STAT_H */