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