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
 12struct event_key {
 13	#define INVALID_KEY     (~0ULL)
 14	u64 key;
 15	int info;
 16	struct exit_reasons_table *exit_reasons;
 17};
 18
 19struct kvm_event_stats {
 20	u64 time;
 21	struct stats stats;
 22};
 23
 24struct 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
 37typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
 38
 39struct kvm_event_key {
 40	const char *name;
 41	key_cmp_fun key;
 42};
 43
 44struct perf_kvm_stat;
 45
 46struct 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
 53struct 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
 65struct 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
 73struct 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
106struct kvm_reg_events_ops {
107	const char *name;
108	struct kvm_events_ops *ops;
109};
110
111void exit_event_get_key(struct perf_evsel *evsel,
112			struct perf_sample *sample,
113			struct event_key *key);
114bool exit_event_begin(struct perf_evsel *evsel,
115		      struct perf_sample *sample,
116		      struct event_key *key);
117bool exit_event_end(struct perf_evsel *evsel,
118		    struct perf_sample *sample,
119		    struct event_key *key);
120void exit_event_decode_key(struct perf_kvm_stat *kvm,
121			   struct event_key *key,
122			   char *decode);
123
124bool kvm_exit_event(struct perf_evsel *evsel);
125bool kvm_entry_event(struct perf_evsel *evsel);
126int 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 */
136int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
137
138extern const char *kvm_events_tp[];
139extern struct kvm_reg_events_ops kvm_reg_events_ops[];
140extern const char * const kvm_skip_events[];
141extern const char *vcpu_id_str;
142extern const int decode_str_len;
143extern const char *kvm_exit_reason;
144extern const char *kvm_entry_trace;
145extern const char *kvm_exit_trace;
146
147#endif /* __PERF_KVM_STAT_H */