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