LXR linux/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#ifdef HAVE_KVM_STAT_SUPPORT
   6
   7#include "tool.h"
   8#include "stat.h"
   9#include "record.h"
  10
  11struct evsel;
  12struct evlist;
  13struct perf_session;
  14
  15struct event_key {
  16        #define INVALID_KEY     (~0ULL)
  17        u64 key;
  18        int info;
  19        struct exit_reasons_table *exit_reasons;
  20};
  21
  22struct kvm_event_stats {
  23        u64 time;
  24        struct stats stats;
  25};
  26
  27struct kvm_event {
  28        struct list_head hash_entry;
  29        struct rb_node rb;
  30
  31        struct event_key key;
  32
  33        struct kvm_event_stats total;
  34
  35        #define DEFAULT_VCPU_NUM 8
  36        int max_vcpu;
  37        struct kvm_event_stats *vcpu;
  38};
  39
  40typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
  41
  42struct kvm_event_key {
  43        const char *name;
  44        key_cmp_fun key;
  45};
  46
  47struct perf_kvm_stat;
  48
  49struct child_event_ops {
  50        void (*get_key)(struct evsel *evsel,
  51                        struct perf_sample *sample,
  52                        struct event_key *key);
  53        const char *name;
  54};
  55
  56struct kvm_events_ops {
  57        bool (*is_begin_event)(struct evsel *evsel,
  58                               struct perf_sample *sample,
  59                               struct event_key *key);
  60        bool (*is_end_event)(struct evsel *evsel,
  61                             struct perf_sample *sample, struct event_key *key);
  62        struct child_event_ops *child_ops;
  63        void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
  64                           char *decode);
  65        const char *name;
  66};
  67
  68struct exit_reasons_table {
  69        unsigned long exit_code;
  70        const char *reason;
  71};
  72
  73#define EVENTS_BITS             12
  74#define EVENTS_CACHE_SIZE       (1UL << EVENTS_BITS)
  75
  76struct perf_kvm_stat {
  77        struct perf_tool    tool;
  78        struct record_opts  opts;
  79        struct evlist  *evlist;
  80        struct perf_session *session;
  81
  82        const char *file_name;
  83        const char *report_event;
  84        const char *sort_key;
  85        int trace_vcpu;
  86
  87        struct exit_reasons_table *exit_reasons;
  88        const char *exit_reasons_isa;
  89
  90        struct kvm_events_ops *events_ops;
  91        key_cmp_fun compare;
  92        struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
  93
  94        u64 total_time;
  95        u64 total_count;
  96        u64 lost_events;
  97        u64 duration;
  98
  99        struct intlist *pid_list;
 100
 101        struct rb_root result;
 102
 103        int timerfd;
 104        unsigned int display_time;
 105        bool live;
 106        bool force;
 107};
 108
 109struct kvm_reg_events_ops {
 110        const char *name;
 111        struct kvm_events_ops *ops;
 112};
 113
 114void exit_event_get_key(struct evsel *evsel,
 115                        struct perf_sample *sample,
 116                        struct event_key *key);
 117bool exit_event_begin(struct evsel *evsel,
 118                      struct perf_sample *sample,
 119                      struct event_key *key);
 120bool exit_event_end(struct evsel *evsel,
 121                    struct perf_sample *sample,
 122                    struct event_key *key);
 123void exit_event_decode_key(struct perf_kvm_stat *kvm,
 124                           struct event_key *key,
 125                           char *decode);
 126
 127bool kvm_exit_event(struct evsel *evsel);
 128bool kvm_entry_event(struct evsel *evsel);
 129int setup_kvm_events_tp(struct perf_kvm_stat *kvm);
 130
 131#define define_exit_reasons_table(name, symbols)        \
 132        static struct exit_reasons_table name[] = {     \
 133                symbols, { -1, NULL }                   \
 134        }
 135
 136/*
 137 * arch specific callbacks and data structures
 138 */
 139int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
 140
 141extern const char *kvm_events_tp[];
 142extern struct kvm_reg_events_ops kvm_reg_events_ops[];
 143extern const char * const kvm_skip_events[];
 144extern const char *vcpu_id_str;
 145extern const int decode_str_len;
 146extern const char *kvm_exit_reason;
 147extern const char *kvm_entry_trace;
 148extern const char *kvm_exit_trace;
 149#endif /* HAVE_KVM_STAT_SUPPORT */
 150
 151extern int kvm_add_default_arch_event(int *argc, const char **argv);
 152#endif /* __PERF_KVM_STAT_H */
 153