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 "sort.h" 9 #include "stat.h" 10 #include "symbol.h" 11 #include "record.h" 12 13 #include <stdlib.h> 14 #include <linux/zalloc.h> 15 16 #define KVM_EVENT_NAME_LEN 40 17 18 struct evsel; 19 struct evlist; 20 struct perf_session; 21 22 struct event_key { 23 #define INVALID_KEY (~0ULL) 24 u64 key; 25 int info; 26 struct exit_reasons_table *exit_reasons; 27 }; 28 29 struct kvm_info { 30 char name[KVM_EVENT_NAME_LEN]; 31 refcount_t refcnt; 32 }; 33 34 struct kvm_event_stats { 35 u64 time; 36 struct stats stats; 37 }; 38 39 struct perf_kvm_stat; 40 41 struct kvm_event { 42 struct list_head hash_entry; 43 44 struct perf_kvm_stat *perf_kvm; 45 struct event_key key; 46 47 struct kvm_event_stats total; 48 49 #define DEFAULT_VCPU_NUM 8 50 int max_vcpu; 51 struct kvm_event_stats *vcpu; 52 53 struct hist_entry he; 54 }; 55 56 struct child_event_ops { 57 void (*get_key)(struct evsel *evsel, 58 struct perf_sample *sample, 59 struct event_key *key); 60 const char *name; 61 }; 62 63 struct kvm_events_ops { 64 bool (*is_begin_event)(struct evsel *evsel, 65 struct perf_sample *sample, 66 struct event_key *key); 67 bool (*is_end_event)(struct evsel *evsel, 68 struct perf_sample *sample, struct event_key *key); 69 struct child_event_ops *child_ops; 70 void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, 71 char *decode); 72 const char *name; 73 }; 74 75 struct exit_reasons_table { 76 unsigned long exit_code; 77 const char *reason; 78 }; 79 80 struct perf_kvm_stat { 81 struct perf_tool tool; 82 struct record_opts opts; 83 struct evlist *evlist; 84 struct perf_session *session; 85 86 const char *file_name; 87 const char *report_event; 88 const char *sort_key; 89 int trace_vcpu; 90 91 /* Used when process events */ 92 struct addr_location al; 93 94 struct exit_reasons_table *exit_reasons; 95 const char *exit_reasons_isa; 96 97 struct kvm_events_ops *events_ops; 98 99 u64 total_time; 100 u64 total_count; 101 u64 lost_events; 102 u64 duration; 103 104 struct intlist *pid_list; 105 106 int timerfd; 107 unsigned int display_time; 108 bool live; 109 bool force; 110 bool use_stdio; 111 }; 112 113 struct kvm_reg_events_ops { 114 const char *name; 115 struct kvm_events_ops *ops; 116 }; 117 118 #if defined(HAVE_KVM_STAT_SUPPORT) && defined(HAVE_LIBTRACEEVENT) 119 120 void exit_event_get_key(struct evsel *evsel, 121 struct perf_sample *sample, 122 struct event_key *key); 123 bool exit_event_begin(struct evsel *evsel, 124 struct perf_sample *sample, 125 struct event_key *key); 126 bool exit_event_end(struct evsel *evsel, 127 struct perf_sample *sample, 128 struct event_key *key); 129 void exit_event_decode_key(struct perf_kvm_stat *kvm, 130 struct event_key *key, 131 char *decode); 132 #endif 133 134 bool kvm_exit_event(struct evsel *evsel); 135 bool kvm_entry_event(struct evsel *evsel); 136 int setup_kvm_events_tp(struct perf_kvm_stat *kvm); 137 138 #define define_exit_reasons_table(name, symbols) \ 139 static struct exit_reasons_table name[] = { \ 140 symbols, { -1, NULL } \ 141 } 142 143 /* 144 * arch specific callbacks and data structures 145 */ 146 int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid); 147 148 extern const char *kvm_events_tp[]; 149 extern struct kvm_reg_events_ops kvm_reg_events_ops[]; 150 extern const char * const kvm_skip_events[]; 151 extern const char *vcpu_id_str; 152 extern const char *kvm_exit_reason; 153 extern const char *kvm_entry_trace; 154 extern const char *kvm_exit_trace; 155 156 static inline struct kvm_info *kvm_info__get(struct kvm_info *ki) 157 { 158 if (ki) 159 refcount_inc(&ki->refcnt); 160 return ki; 161 } 162 163 static inline void kvm_info__put(struct kvm_info *ki) 164 { 165 if (ki && refcount_dec_and_test(&ki->refcnt)) 166 free(ki); 167 } 168 169 static inline void __kvm_info__zput(struct kvm_info **ki) 170 { 171 kvm_info__put(*ki); 172 *ki = NULL; 173 } 174 175 #define kvm_info__zput(ki) __kvm_info__zput(&ki) 176 177 static inline struct kvm_info *kvm_info__new(void) 178 { 179 struct kvm_info *ki; 180 181 ki = zalloc(sizeof(*ki)); 182 if (ki) 183 refcount_set(&ki->refcnt, 1); 184 185 return ki; 186 } 187 188 #else /* HAVE_KVM_STAT_SUPPORT */ 189 // We use this unconditionally in hists__findnew_entry() and hist_entry__delete() 190 #define kvm_info__zput(ki) do { } while (0) 191 #endif /* HAVE_KVM_STAT_SUPPORT */ 192 193 extern int kvm_add_default_arch_event(int *argc, const char **argv); 194 #endif /* __PERF_KVM_STAT_H */ 195