xref: /linux/tools/perf/util/kvm-stat.h (revision 2bc46b3ad3c15165f91459b07ff8682478683194)
1 #ifndef __PERF_KVM_STAT_H
2 #define __PERF_KVM_STAT_H
3 
4 #include "../perf.h"
5 #include "evsel.h"
6 #include "evlist.h"
7 #include "session.h"
8 #include "tool.h"
9 #include "stat.h"
10 
11 struct event_key {
12 	#define INVALID_KEY     (~0ULL)
13 	u64 key;
14 	int info;
15 	struct exit_reasons_table *exit_reasons;
16 };
17 
18 struct kvm_event_stats {
19 	u64 time;
20 	struct stats stats;
21 };
22 
23 struct kvm_event {
24 	struct list_head hash_entry;
25 	struct rb_node rb;
26 
27 	struct event_key key;
28 
29 	struct kvm_event_stats total;
30 
31 	#define DEFAULT_VCPU_NUM 8
32 	int max_vcpu;
33 	struct kvm_event_stats *vcpu;
34 };
35 
36 typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
37 
38 struct kvm_event_key {
39 	const char *name;
40 	key_cmp_fun key;
41 };
42 
43 struct perf_kvm_stat;
44 
45 struct child_event_ops {
46 	void (*get_key)(struct perf_evsel *evsel,
47 			struct perf_sample *sample,
48 			struct event_key *key);
49 	const char *name;
50 };
51 
52 struct kvm_events_ops {
53 	bool (*is_begin_event)(struct perf_evsel *evsel,
54 			       struct perf_sample *sample,
55 			       struct event_key *key);
56 	bool (*is_end_event)(struct perf_evsel *evsel,
57 			     struct perf_sample *sample, struct event_key *key);
58 	struct child_event_ops *child_ops;
59 	void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
60 			   char *decode);
61 	const char *name;
62 };
63 
64 struct exit_reasons_table {
65 	unsigned long exit_code;
66 	const char *reason;
67 };
68 
69 #define EVENTS_BITS		12
70 #define EVENTS_CACHE_SIZE	(1UL << EVENTS_BITS)
71 
72 struct perf_kvm_stat {
73 	struct perf_tool    tool;
74 	struct record_opts  opts;
75 	struct perf_evlist  *evlist;
76 	struct perf_session *session;
77 
78 	const char *file_name;
79 	const char *report_event;
80 	const char *sort_key;
81 	int trace_vcpu;
82 
83 	struct exit_reasons_table *exit_reasons;
84 	const char *exit_reasons_isa;
85 
86 	struct kvm_events_ops *events_ops;
87 	key_cmp_fun compare;
88 	struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
89 
90 	u64 total_time;
91 	u64 total_count;
92 	u64 lost_events;
93 	u64 duration;
94 
95 	struct intlist *pid_list;
96 
97 	struct rb_root result;
98 
99 	int timerfd;
100 	unsigned int display_time;
101 	bool live;
102 	bool force;
103 };
104 
105 struct kvm_reg_events_ops {
106 	const char *name;
107 	struct kvm_events_ops *ops;
108 };
109 
110 void exit_event_get_key(struct perf_evsel *evsel,
111 			struct perf_sample *sample,
112 			struct event_key *key);
113 bool exit_event_begin(struct perf_evsel *evsel,
114 		      struct perf_sample *sample,
115 		      struct event_key *key);
116 bool exit_event_end(struct perf_evsel *evsel,
117 		    struct perf_sample *sample,
118 		    struct event_key *key);
119 void exit_event_decode_key(struct perf_kvm_stat *kvm,
120 			   struct event_key *key,
121 			   char *decode);
122 
123 bool kvm_exit_event(struct perf_evsel *evsel);
124 bool kvm_entry_event(struct perf_evsel *evsel);
125 int setup_kvm_events_tp(struct perf_kvm_stat *kvm);
126 
127 #define define_exit_reasons_table(name, symbols)	\
128 	static struct exit_reasons_table name[] = {	\
129 		symbols, { -1, NULL }			\
130 	}
131 
132 /*
133  * arch specific callbacks and data structures
134  */
135 int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid);
136 
137 extern const char *kvm_events_tp[];
138 extern struct kvm_reg_events_ops kvm_reg_events_ops[];
139 extern const char * const kvm_skip_events[];
140 extern const char *vcpu_id_str;
141 extern const int decode_str_len;
142 extern const char *kvm_exit_reason;
143 extern const char *kvm_entry_trace;
144 extern const char *kvm_exit_trace;
145 
146 #endif /* __PERF_KVM_STAT_H */
147