Commit | Line | Data |
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a1645ce1 ZY |
1 | #include "builtin.h" |
2 | #include "perf.h" | |
3 | ||
bcf6edcd | 4 | #include "util/evsel.h" |
1afe1d14 | 5 | #include "util/evlist.h" |
b0742e90 | 6 | #include "util/term.h" |
a1645ce1 ZY |
7 | #include "util/util.h" |
8 | #include "util/cache.h" | |
9 | #include "util/symbol.h" | |
10 | #include "util/thread.h" | |
11 | #include "util/header.h" | |
12 | #include "util/session.h" | |
2e73f00f | 13 | #include "util/intlist.h" |
4b6ab94e | 14 | #include <subcmd/parse-options.h> |
a1645ce1 | 15 | #include "util/trace-event.h" |
a1645ce1 | 16 | #include "util/debug.h" |
bcf6edcd XG |
17 | #include "util/tool.h" |
18 | #include "util/stat.h" | |
1afe1d14 | 19 | #include "util/top.h" |
f5fc1412 | 20 | #include "util/data.h" |
d704ebda | 21 | #include "util/ordered-events.h" |
a1645ce1 ZY |
22 | |
23 | #include <sys/prctl.h> | |
87419c9a | 24 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 | 25 | #include <sys/timerfd.h> |
87419c9a | 26 | #endif |
c5e4027e | 27 | #include <sys/time.h> |
a1645ce1 | 28 | |
877a7a11 | 29 | #include <linux/kernel.h> |
bd48c63e | 30 | #include <linux/time64.h> |
a43783ae | 31 | #include <errno.h> |
fd20e811 | 32 | #include <inttypes.h> |
1afe1d14 | 33 | #include <termios.h> |
a1645ce1 | 34 | #include <semaphore.h> |
9607ad3a | 35 | #include <signal.h> |
a1645ce1 ZY |
36 | #include <pthread.h> |
37 | #include <math.h> | |
38 | ||
da50ad69 | 39 | #ifdef HAVE_KVM_STAT_SUPPORT |
9daa8123 | 40 | #include "util/kvm-stat.h" |
bcf6edcd | 41 | |
9daa8123 AY |
42 | void exit_event_get_key(struct perf_evsel *evsel, |
43 | struct perf_sample *sample, | |
44 | struct event_key *key) | |
bcf6edcd XG |
45 | { |
46 | key->info = 0; | |
162607ea | 47 | key->key = perf_evsel__intval(evsel, sample, kvm_exit_reason); |
bcf6edcd XG |
48 | } |
49 | ||
9daa8123 | 50 | bool kvm_exit_event(struct perf_evsel *evsel) |
bcf6edcd | 51 | { |
162607ea | 52 | return !strcmp(evsel->name, kvm_exit_trace); |
bcf6edcd XG |
53 | } |
54 | ||
9daa8123 AY |
55 | bool exit_event_begin(struct perf_evsel *evsel, |
56 | struct perf_sample *sample, struct event_key *key) | |
bcf6edcd | 57 | { |
14907e73 ACM |
58 | if (kvm_exit_event(evsel)) { |
59 | exit_event_get_key(evsel, sample, key); | |
bcf6edcd XG |
60 | return true; |
61 | } | |
62 | ||
63 | return false; | |
64 | } | |
65 | ||
9daa8123 | 66 | bool kvm_entry_event(struct perf_evsel *evsel) |
bcf6edcd | 67 | { |
162607ea | 68 | return !strcmp(evsel->name, kvm_entry_trace); |
bcf6edcd XG |
69 | } |
70 | ||
9daa8123 AY |
71 | bool exit_event_end(struct perf_evsel *evsel, |
72 | struct perf_sample *sample __maybe_unused, | |
73 | struct event_key *key __maybe_unused) | |
bcf6edcd | 74 | { |
14907e73 | 75 | return kvm_entry_event(evsel); |
bcf6edcd XG |
76 | } |
77 | ||
df74c13b AY |
78 | static const char *get_exit_reason(struct perf_kvm_stat *kvm, |
79 | struct exit_reasons_table *tbl, | |
80 | u64 exit_code) | |
bcf6edcd | 81 | { |
df74c13b | 82 | while (tbl->reason != NULL) { |
de332ac4 DA |
83 | if (tbl->exit_code == exit_code) |
84 | return tbl->reason; | |
85 | tbl++; | |
bcf6edcd XG |
86 | } |
87 | ||
88 | pr_err("unknown kvm exit code:%lld on %s\n", | |
de332ac4 | 89 | (unsigned long long)exit_code, kvm->exit_reasons_isa); |
bcf6edcd XG |
90 | return "UNKNOWN"; |
91 | } | |
92 | ||
9daa8123 AY |
93 | void exit_event_decode_key(struct perf_kvm_stat *kvm, |
94 | struct event_key *key, | |
95 | char *decode) | |
bcf6edcd | 96 | { |
3be8e2a0 | 97 | const char *exit_reason = get_exit_reason(kvm, key->exit_reasons, |
df74c13b | 98 | key->key); |
bcf6edcd | 99 | |
162607ea | 100 | scnprintf(decode, decode_str_len, "%s", exit_reason); |
bcf6edcd XG |
101 | } |
102 | ||
9daa8123 | 103 | static bool register_kvm_events_ops(struct perf_kvm_stat *kvm) |
bcf6edcd | 104 | { |
9daa8123 | 105 | struct kvm_reg_events_ops *events_ops = kvm_reg_events_ops; |
bcf6edcd | 106 | |
9daa8123 AY |
107 | for (events_ops = kvm_reg_events_ops; events_ops->name; events_ops++) { |
108 | if (!strcmp(events_ops->name, kvm->report_event)) { | |
109 | kvm->events_ops = events_ops->ops; | |
110 | return true; | |
111 | } | |
bcf6edcd XG |
112 | } |
113 | ||
114 | return false; | |
115 | } | |
116 | ||
bcf6edcd XG |
117 | struct vcpu_event_record { |
118 | int vcpu_id; | |
119 | u64 start_time; | |
120 | struct kvm_event *last_event; | |
121 | }; | |
122 | ||
bcf6edcd | 123 | |
3786063a | 124 | static void init_kvm_event_record(struct perf_kvm_stat *kvm) |
bcf6edcd | 125 | { |
b880deea | 126 | unsigned int i; |
bcf6edcd | 127 | |
b880deea | 128 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) |
de332ac4 | 129 | INIT_LIST_HEAD(&kvm->kvm_events_cache[i]); |
bcf6edcd XG |
130 | } |
131 | ||
87419c9a | 132 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
133 | static void clear_events_cache_stats(struct list_head *kvm_events_cache) |
134 | { | |
135 | struct list_head *head; | |
136 | struct kvm_event *event; | |
137 | unsigned int i; | |
62d04dbf | 138 | int j; |
1afe1d14 DA |
139 | |
140 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) { | |
141 | head = &kvm_events_cache[i]; | |
142 | list_for_each_entry(event, head, hash_entry) { | |
143 | /* reset stats for event */ | |
62d04dbf DA |
144 | event->total.time = 0; |
145 | init_stats(&event->total.stats); | |
146 | ||
147 | for (j = 0; j < event->max_vcpu; ++j) { | |
148 | event->vcpu[j].time = 0; | |
149 | init_stats(&event->vcpu[j].stats); | |
150 | } | |
1afe1d14 DA |
151 | } |
152 | } | |
153 | } | |
87419c9a | 154 | #endif |
1afe1d14 | 155 | |
bcf6edcd XG |
156 | static int kvm_events_hash_fn(u64 key) |
157 | { | |
158 | return key & (EVENTS_CACHE_SIZE - 1); | |
159 | } | |
160 | ||
161 | static bool kvm_event_expand(struct kvm_event *event, int vcpu_id) | |
162 | { | |
163 | int old_max_vcpu = event->max_vcpu; | |
6ca5f308 | 164 | void *prev; |
bcf6edcd XG |
165 | |
166 | if (vcpu_id < event->max_vcpu) | |
167 | return true; | |
168 | ||
169 | while (event->max_vcpu <= vcpu_id) | |
170 | event->max_vcpu += DEFAULT_VCPU_NUM; | |
171 | ||
6ca5f308 | 172 | prev = event->vcpu; |
bcf6edcd XG |
173 | event->vcpu = realloc(event->vcpu, |
174 | event->max_vcpu * sizeof(*event->vcpu)); | |
175 | if (!event->vcpu) { | |
6ca5f308 | 176 | free(prev); |
bcf6edcd XG |
177 | pr_err("Not enough memory\n"); |
178 | return false; | |
179 | } | |
180 | ||
181 | memset(event->vcpu + old_max_vcpu, 0, | |
182 | (event->max_vcpu - old_max_vcpu) * sizeof(*event->vcpu)); | |
183 | return true; | |
184 | } | |
185 | ||
186 | static struct kvm_event *kvm_alloc_init_event(struct event_key *key) | |
187 | { | |
188 | struct kvm_event *event; | |
189 | ||
190 | event = zalloc(sizeof(*event)); | |
191 | if (!event) { | |
192 | pr_err("Not enough memory\n"); | |
193 | return NULL; | |
194 | } | |
195 | ||
196 | event->key = *key; | |
acb61fc8 | 197 | init_stats(&event->total.stats); |
bcf6edcd XG |
198 | return event; |
199 | } | |
200 | ||
3786063a | 201 | static struct kvm_event *find_create_kvm_event(struct perf_kvm_stat *kvm, |
de332ac4 | 202 | struct event_key *key) |
bcf6edcd XG |
203 | { |
204 | struct kvm_event *event; | |
205 | struct list_head *head; | |
206 | ||
207 | BUG_ON(key->key == INVALID_KEY); | |
208 | ||
de332ac4 | 209 | head = &kvm->kvm_events_cache[kvm_events_hash_fn(key->key)]; |
355afe81 | 210 | list_for_each_entry(event, head, hash_entry) { |
bcf6edcd XG |
211 | if (event->key.key == key->key && event->key.info == key->info) |
212 | return event; | |
355afe81 | 213 | } |
bcf6edcd XG |
214 | |
215 | event = kvm_alloc_init_event(key); | |
216 | if (!event) | |
217 | return NULL; | |
218 | ||
219 | list_add(&event->hash_entry, head); | |
220 | return event; | |
221 | } | |
222 | ||
3786063a | 223 | static bool handle_begin_event(struct perf_kvm_stat *kvm, |
de332ac4 | 224 | struct vcpu_event_record *vcpu_record, |
bcf6edcd XG |
225 | struct event_key *key, u64 timestamp) |
226 | { | |
227 | struct kvm_event *event = NULL; | |
228 | ||
229 | if (key->key != INVALID_KEY) | |
de332ac4 | 230 | event = find_create_kvm_event(kvm, key); |
bcf6edcd XG |
231 | |
232 | vcpu_record->last_event = event; | |
233 | vcpu_record->start_time = timestamp; | |
234 | return true; | |
235 | } | |
236 | ||
237 | static void | |
238 | kvm_update_event_stats(struct kvm_event_stats *kvm_stats, u64 time_diff) | |
239 | { | |
240 | kvm_stats->time += time_diff; | |
241 | update_stats(&kvm_stats->stats, time_diff); | |
242 | } | |
243 | ||
244 | static double kvm_event_rel_stddev(int vcpu_id, struct kvm_event *event) | |
245 | { | |
246 | struct kvm_event_stats *kvm_stats = &event->total; | |
247 | ||
248 | if (vcpu_id != -1) | |
249 | kvm_stats = &event->vcpu[vcpu_id]; | |
250 | ||
251 | return rel_stddev_stats(stddev_stats(&kvm_stats->stats), | |
252 | avg_stats(&kvm_stats->stats)); | |
253 | } | |
254 | ||
255 | static bool update_kvm_event(struct kvm_event *event, int vcpu_id, | |
256 | u64 time_diff) | |
257 | { | |
2aa8eab0 DA |
258 | if (vcpu_id == -1) { |
259 | kvm_update_event_stats(&event->total, time_diff); | |
260 | return true; | |
261 | } | |
bcf6edcd XG |
262 | |
263 | if (!kvm_event_expand(event, vcpu_id)) | |
264 | return false; | |
265 | ||
266 | kvm_update_event_stats(&event->vcpu[vcpu_id], time_diff); | |
267 | return true; | |
268 | } | |
269 | ||
3be8e2a0 AY |
270 | static bool is_child_event(struct perf_kvm_stat *kvm, |
271 | struct perf_evsel *evsel, | |
272 | struct perf_sample *sample, | |
273 | struct event_key *key) | |
274 | { | |
275 | struct child_event_ops *child_ops; | |
276 | ||
277 | child_ops = kvm->events_ops->child_ops; | |
278 | ||
279 | if (!child_ops) | |
280 | return false; | |
281 | ||
282 | for (; child_ops->name; child_ops++) { | |
283 | if (!strcmp(evsel->name, child_ops->name)) { | |
284 | child_ops->get_key(evsel, sample, key); | |
285 | return true; | |
286 | } | |
287 | } | |
288 | ||
289 | return false; | |
290 | } | |
291 | ||
292 | static bool handle_child_event(struct perf_kvm_stat *kvm, | |
293 | struct vcpu_event_record *vcpu_record, | |
294 | struct event_key *key, | |
295 | struct perf_sample *sample __maybe_unused) | |
296 | { | |
297 | struct kvm_event *event = NULL; | |
298 | ||
299 | if (key->key != INVALID_KEY) | |
300 | event = find_create_kvm_event(kvm, key); | |
301 | ||
302 | vcpu_record->last_event = event; | |
303 | ||
304 | return true; | |
305 | } | |
306 | ||
54c801ff AY |
307 | static bool skip_event(const char *event) |
308 | { | |
309 | const char * const *skip_events; | |
310 | ||
311 | for (skip_events = kvm_skip_events; *skip_events; skip_events++) | |
312 | if (!strcmp(event, *skip_events)) | |
313 | return true; | |
314 | ||
315 | return false; | |
316 | } | |
317 | ||
3786063a | 318 | static bool handle_end_event(struct perf_kvm_stat *kvm, |
de332ac4 DA |
319 | struct vcpu_event_record *vcpu_record, |
320 | struct event_key *key, | |
70f7b4a7 | 321 | struct perf_sample *sample) |
bcf6edcd XG |
322 | { |
323 | struct kvm_event *event; | |
324 | u64 time_begin, time_diff; | |
2aa8eab0 DA |
325 | int vcpu; |
326 | ||
327 | if (kvm->trace_vcpu == -1) | |
328 | vcpu = -1; | |
329 | else | |
330 | vcpu = vcpu_record->vcpu_id; | |
bcf6edcd XG |
331 | |
332 | event = vcpu_record->last_event; | |
333 | time_begin = vcpu_record->start_time; | |
334 | ||
335 | /* The begin event is not caught. */ | |
336 | if (!time_begin) | |
337 | return true; | |
338 | ||
339 | /* | |
340 | * In some case, the 'begin event' only records the start timestamp, | |
341 | * the actual event is recognized in the 'end event' (e.g. mmio-event). | |
342 | */ | |
343 | ||
344 | /* Both begin and end events did not get the key. */ | |
345 | if (!event && key->key == INVALID_KEY) | |
346 | return true; | |
347 | ||
348 | if (!event) | |
de332ac4 | 349 | event = find_create_kvm_event(kvm, key); |
bcf6edcd XG |
350 | |
351 | if (!event) | |
352 | return false; | |
353 | ||
354 | vcpu_record->last_event = NULL; | |
355 | vcpu_record->start_time = 0; | |
356 | ||
1afe1d14 | 357 | /* seems to happen once in a while during live mode */ |
70f7b4a7 | 358 | if (sample->time < time_begin) { |
1afe1d14 DA |
359 | pr_debug("End time before begin time; skipping event.\n"); |
360 | return true; | |
361 | } | |
bcf6edcd | 362 | |
70f7b4a7 DA |
363 | time_diff = sample->time - time_begin; |
364 | ||
365 | if (kvm->duration && time_diff > kvm->duration) { | |
162607ea | 366 | char decode[decode_str_len]; |
70f7b4a7 DA |
367 | |
368 | kvm->events_ops->decode_key(kvm, &event->key, decode); | |
54c801ff | 369 | if (!skip_event(decode)) { |
70f7b4a7 DA |
370 | pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n", |
371 | sample->time, sample->pid, vcpu_record->vcpu_id, | |
c05a6e14 | 372 | decode, time_diff / NSEC_PER_USEC); |
70f7b4a7 DA |
373 | } |
374 | } | |
375 | ||
2aa8eab0 | 376 | return update_kvm_event(event, vcpu, time_diff); |
bcf6edcd XG |
377 | } |
378 | ||
14907e73 ACM |
379 | static |
380 | struct vcpu_event_record *per_vcpu_record(struct thread *thread, | |
381 | struct perf_evsel *evsel, | |
382 | struct perf_sample *sample) | |
bcf6edcd XG |
383 | { |
384 | /* Only kvm_entry records vcpu id. */ | |
69e865c3 | 385 | if (!thread__priv(thread) && kvm_entry_event(evsel)) { |
bcf6edcd XG |
386 | struct vcpu_event_record *vcpu_record; |
387 | ||
14907e73 | 388 | vcpu_record = zalloc(sizeof(*vcpu_record)); |
bcf6edcd | 389 | if (!vcpu_record) { |
14907e73 | 390 | pr_err("%s: Not enough memory\n", __func__); |
bcf6edcd XG |
391 | return NULL; |
392 | } | |
393 | ||
162607ea HK |
394 | vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, |
395 | vcpu_id_str); | |
69e865c3 | 396 | thread__set_priv(thread, vcpu_record); |
bcf6edcd XG |
397 | } |
398 | ||
69e865c3 | 399 | return thread__priv(thread); |
bcf6edcd XG |
400 | } |
401 | ||
3786063a | 402 | static bool handle_kvm_event(struct perf_kvm_stat *kvm, |
de332ac4 DA |
403 | struct thread *thread, |
404 | struct perf_evsel *evsel, | |
14907e73 | 405 | struct perf_sample *sample) |
bcf6edcd XG |
406 | { |
407 | struct vcpu_event_record *vcpu_record; | |
3be8e2a0 AY |
408 | struct event_key key = { .key = INVALID_KEY, |
409 | .exit_reasons = kvm->exit_reasons }; | |
bcf6edcd | 410 | |
14907e73 | 411 | vcpu_record = per_vcpu_record(thread, evsel, sample); |
bcf6edcd XG |
412 | if (!vcpu_record) |
413 | return true; | |
414 | ||
2aa8eab0 DA |
415 | /* only process events for vcpus user cares about */ |
416 | if ((kvm->trace_vcpu != -1) && | |
417 | (kvm->trace_vcpu != vcpu_record->vcpu_id)) | |
418 | return true; | |
419 | ||
de332ac4 DA |
420 | if (kvm->events_ops->is_begin_event(evsel, sample, &key)) |
421 | return handle_begin_event(kvm, vcpu_record, &key, sample->time); | |
bcf6edcd | 422 | |
3be8e2a0 AY |
423 | if (is_child_event(kvm, evsel, sample, &key)) |
424 | return handle_child_event(kvm, vcpu_record, &key, sample); | |
425 | ||
de332ac4 | 426 | if (kvm->events_ops->is_end_event(evsel, sample, &key)) |
70f7b4a7 | 427 | return handle_end_event(kvm, vcpu_record, &key, sample); |
bcf6edcd XG |
428 | |
429 | return true; | |
430 | } | |
431 | ||
bcf6edcd XG |
432 | #define GET_EVENT_KEY(func, field) \ |
433 | static u64 get_event_ ##func(struct kvm_event *event, int vcpu) \ | |
434 | { \ | |
435 | if (vcpu == -1) \ | |
436 | return event->total.field; \ | |
437 | \ | |
438 | if (vcpu >= event->max_vcpu) \ | |
439 | return 0; \ | |
440 | \ | |
441 | return event->vcpu[vcpu].field; \ | |
442 | } | |
443 | ||
444 | #define COMPARE_EVENT_KEY(func, field) \ | |
445 | GET_EVENT_KEY(func, field) \ | |
446 | static int compare_kvm_event_ ## func(struct kvm_event *one, \ | |
447 | struct kvm_event *two, int vcpu)\ | |
448 | { \ | |
449 | return get_event_ ##func(one, vcpu) > \ | |
450 | get_event_ ##func(two, vcpu); \ | |
451 | } | |
452 | ||
453 | GET_EVENT_KEY(time, time); | |
454 | COMPARE_EVENT_KEY(count, stats.n); | |
455 | COMPARE_EVENT_KEY(mean, stats.mean); | |
62d04dbf DA |
456 | GET_EVENT_KEY(max, stats.max); |
457 | GET_EVENT_KEY(min, stats.min); | |
bcf6edcd XG |
458 | |
459 | #define DEF_SORT_NAME_KEY(name, compare_key) \ | |
460 | { #name, compare_kvm_event_ ## compare_key } | |
461 | ||
462 | static struct kvm_event_key keys[] = { | |
463 | DEF_SORT_NAME_KEY(sample, count), | |
464 | DEF_SORT_NAME_KEY(time, mean), | |
465 | { NULL, NULL } | |
466 | }; | |
467 | ||
3786063a | 468 | static bool select_key(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
469 | { |
470 | int i; | |
471 | ||
472 | for (i = 0; keys[i].name; i++) { | |
de332ac4 DA |
473 | if (!strcmp(keys[i].name, kvm->sort_key)) { |
474 | kvm->compare = keys[i].key; | |
bcf6edcd XG |
475 | return true; |
476 | } | |
477 | } | |
478 | ||
de332ac4 | 479 | pr_err("Unknown compare key:%s\n", kvm->sort_key); |
bcf6edcd XG |
480 | return false; |
481 | } | |
482 | ||
de332ac4 DA |
483 | static void insert_to_result(struct rb_root *result, struct kvm_event *event, |
484 | key_cmp_fun bigger, int vcpu) | |
bcf6edcd | 485 | { |
de332ac4 | 486 | struct rb_node **rb = &result->rb_node; |
bcf6edcd XG |
487 | struct rb_node *parent = NULL; |
488 | struct kvm_event *p; | |
489 | ||
490 | while (*rb) { | |
491 | p = container_of(*rb, struct kvm_event, rb); | |
492 | parent = *rb; | |
493 | ||
494 | if (bigger(event, p, vcpu)) | |
495 | rb = &(*rb)->rb_left; | |
496 | else | |
497 | rb = &(*rb)->rb_right; | |
498 | } | |
499 | ||
500 | rb_link_node(&event->rb, parent, rb); | |
de332ac4 | 501 | rb_insert_color(&event->rb, result); |
bcf6edcd XG |
502 | } |
503 | ||
3786063a XG |
504 | static void |
505 | update_total_count(struct perf_kvm_stat *kvm, struct kvm_event *event) | |
bcf6edcd | 506 | { |
de332ac4 DA |
507 | int vcpu = kvm->trace_vcpu; |
508 | ||
509 | kvm->total_count += get_event_count(event, vcpu); | |
510 | kvm->total_time += get_event_time(event, vcpu); | |
bcf6edcd XG |
511 | } |
512 | ||
513 | static bool event_is_valid(struct kvm_event *event, int vcpu) | |
514 | { | |
515 | return !!get_event_count(event, vcpu); | |
516 | } | |
517 | ||
3786063a | 518 | static void sort_result(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
519 | { |
520 | unsigned int i; | |
de332ac4 | 521 | int vcpu = kvm->trace_vcpu; |
bcf6edcd XG |
522 | struct kvm_event *event; |
523 | ||
355afe81 DA |
524 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) { |
525 | list_for_each_entry(event, &kvm->kvm_events_cache[i], hash_entry) { | |
bcf6edcd | 526 | if (event_is_valid(event, vcpu)) { |
de332ac4 DA |
527 | update_total_count(kvm, event); |
528 | insert_to_result(&kvm->result, event, | |
529 | kvm->compare, vcpu); | |
bcf6edcd | 530 | } |
355afe81 DA |
531 | } |
532 | } | |
bcf6edcd XG |
533 | } |
534 | ||
535 | /* returns left most element of result, and erase it */ | |
de332ac4 | 536 | static struct kvm_event *pop_from_result(struct rb_root *result) |
bcf6edcd | 537 | { |
de332ac4 | 538 | struct rb_node *node = rb_first(result); |
bcf6edcd XG |
539 | |
540 | if (!node) | |
541 | return NULL; | |
542 | ||
de332ac4 | 543 | rb_erase(node, result); |
bcf6edcd XG |
544 | return container_of(node, struct kvm_event, rb); |
545 | } | |
546 | ||
1afe1d14 | 547 | static void print_vcpu_info(struct perf_kvm_stat *kvm) |
bcf6edcd | 548 | { |
1afe1d14 DA |
549 | int vcpu = kvm->trace_vcpu; |
550 | ||
bcf6edcd XG |
551 | pr_info("Analyze events for "); |
552 | ||
1f3e5b55 AY |
553 | if (kvm->opts.target.system_wide) |
554 | pr_info("all VMs, "); | |
555 | else if (kvm->opts.target.pid) | |
556 | pr_info("pid(s) %s, ", kvm->opts.target.pid); | |
557 | else | |
558 | pr_info("dazed and confused on what is monitored, "); | |
1afe1d14 | 559 | |
bcf6edcd XG |
560 | if (vcpu == -1) |
561 | pr_info("all VCPUs:\n\n"); | |
562 | else | |
563 | pr_info("VCPU %d:\n\n", vcpu); | |
564 | } | |
565 | ||
1afe1d14 DA |
566 | static void show_timeofday(void) |
567 | { | |
568 | char date[64]; | |
569 | struct timeval tv; | |
570 | struct tm ltime; | |
571 | ||
572 | gettimeofday(&tv, NULL); | |
573 | if (localtime_r(&tv.tv_sec, <ime)) { | |
574 | strftime(date, sizeof(date), "%H:%M:%S", <ime); | |
575 | pr_info("%s.%06ld", date, tv.tv_usec); | |
576 | } else | |
577 | pr_info("00:00:00.000000"); | |
578 | ||
579 | return; | |
580 | } | |
581 | ||
3786063a | 582 | static void print_result(struct perf_kvm_stat *kvm) |
bcf6edcd | 583 | { |
162607ea | 584 | char decode[decode_str_len]; |
bcf6edcd | 585 | struct kvm_event *event; |
de332ac4 | 586 | int vcpu = kvm->trace_vcpu; |
bcf6edcd | 587 | |
1afe1d14 DA |
588 | if (kvm->live) { |
589 | puts(CONSOLE_CLEAR); | |
590 | show_timeofday(); | |
591 | } | |
592 | ||
bcf6edcd | 593 | pr_info("\n\n"); |
1afe1d14 | 594 | print_vcpu_info(kvm); |
162607ea | 595 | pr_info("%*s ", decode_str_len, kvm->events_ops->name); |
bcf6edcd XG |
596 | pr_info("%10s ", "Samples"); |
597 | pr_info("%9s ", "Samples%"); | |
598 | ||
599 | pr_info("%9s ", "Time%"); | |
b048a24c CB |
600 | pr_info("%11s ", "Min Time"); |
601 | pr_info("%11s ", "Max Time"); | |
bcf6edcd XG |
602 | pr_info("%16s ", "Avg time"); |
603 | pr_info("\n\n"); | |
604 | ||
de332ac4 | 605 | while ((event = pop_from_result(&kvm->result))) { |
62d04dbf | 606 | u64 ecount, etime, max, min; |
bcf6edcd XG |
607 | |
608 | ecount = get_event_count(event, vcpu); | |
609 | etime = get_event_time(event, vcpu); | |
62d04dbf DA |
610 | max = get_event_max(event, vcpu); |
611 | min = get_event_min(event, vcpu); | |
bcf6edcd | 612 | |
de332ac4 | 613 | kvm->events_ops->decode_key(kvm, &event->key, decode); |
162607ea | 614 | pr_info("%*s ", decode_str_len, decode); |
bcf6edcd | 615 | pr_info("%10llu ", (unsigned long long)ecount); |
de332ac4 DA |
616 | pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); |
617 | pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); | |
c05a6e14 ACM |
618 | pr_info("%9.2fus ", (double)min / NSEC_PER_USEC); |
619 | pr_info("%9.2fus ", (double)max / NSEC_PER_USEC); | |
620 | pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount / NSEC_PER_USEC, | |
bcf6edcd XG |
621 | kvm_event_rel_stddev(vcpu, event)); |
622 | pr_info("\n"); | |
623 | } | |
624 | ||
e4f7637f | 625 | pr_info("\nTotal Samples:%" PRIu64 ", Total events handled time:%.2fus.\n\n", |
c05a6e14 | 626 | kvm->total_count, kvm->total_time / (double)NSEC_PER_USEC); |
1afe1d14 DA |
627 | |
628 | if (kvm->lost_events) | |
629 | pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events); | |
630 | } | |
631 | ||
87419c9a | 632 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
633 | static int process_lost_event(struct perf_tool *tool, |
634 | union perf_event *event __maybe_unused, | |
635 | struct perf_sample *sample __maybe_unused, | |
636 | struct machine *machine __maybe_unused) | |
637 | { | |
638 | struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, tool); | |
639 | ||
640 | kvm->lost_events++; | |
641 | return 0; | |
bcf6edcd | 642 | } |
87419c9a | 643 | #endif |
bcf6edcd | 644 | |
2e73f00f DA |
645 | static bool skip_sample(struct perf_kvm_stat *kvm, |
646 | struct perf_sample *sample) | |
647 | { | |
648 | if (kvm->pid_list && intlist__find(kvm->pid_list, sample->pid) == NULL) | |
649 | return true; | |
650 | ||
651 | return false; | |
652 | } | |
653 | ||
de332ac4 | 654 | static int process_sample_event(struct perf_tool *tool, |
bcf6edcd XG |
655 | union perf_event *event, |
656 | struct perf_sample *sample, | |
657 | struct perf_evsel *evsel, | |
658 | struct machine *machine) | |
659 | { | |
b91fc39f | 660 | int err = 0; |
2e73f00f | 661 | struct thread *thread; |
3786063a XG |
662 | struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, |
663 | tool); | |
bcf6edcd | 664 | |
2e73f00f DA |
665 | if (skip_sample(kvm, sample)) |
666 | return 0; | |
667 | ||
314add6b | 668 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
bcf6edcd XG |
669 | if (thread == NULL) { |
670 | pr_debug("problem processing %d event, skipping it.\n", | |
671 | event->header.type); | |
672 | return -1; | |
673 | } | |
674 | ||
de332ac4 | 675 | if (!handle_kvm_event(kvm, thread, evsel, sample)) |
b91fc39f | 676 | err = -1; |
bcf6edcd | 677 | |
b91fc39f ACM |
678 | thread__put(thread); |
679 | return err; | |
bcf6edcd XG |
680 | } |
681 | ||
1afe1d14 | 682 | static int cpu_isa_config(struct perf_kvm_stat *kvm) |
bcf6edcd | 683 | { |
1afe1d14 | 684 | char buf[64], *cpuid; |
65c647a6 | 685 | int err; |
1afe1d14 DA |
686 | |
687 | if (kvm->live) { | |
688 | err = get_cpuid(buf, sizeof(buf)); | |
689 | if (err != 0) { | |
65c647a6 | 690 | pr_err("Failed to look up CPU type\n"); |
1afe1d14 DA |
691 | return err; |
692 | } | |
693 | cpuid = buf; | |
694 | } else | |
695 | cpuid = kvm->session->header.env.cpuid; | |
bcf6edcd | 696 | |
65c647a6 AY |
697 | if (!cpuid) { |
698 | pr_err("Failed to look up CPU type\n"); | |
699 | return -EINVAL; | |
1afe1d14 DA |
700 | } |
701 | ||
65c647a6 AY |
702 | err = cpu_isa_init(kvm, cpuid); |
703 | if (err == -ENOTSUP) | |
704 | pr_err("CPU %s is not supported.\n", cpuid); | |
1afe1d14 | 705 | |
65c647a6 | 706 | return err; |
1afe1d14 DA |
707 | } |
708 | ||
709 | static bool verify_vcpu(int vcpu) | |
710 | { | |
711 | if (vcpu != -1 && vcpu < 0) { | |
712 | pr_err("Invalid vcpu:%d.\n", vcpu); | |
713 | return false; | |
714 | } | |
715 | ||
716 | return true; | |
717 | } | |
718 | ||
87419c9a | 719 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
720 | /* keeping the max events to a modest level to keep |
721 | * the processing of samples per mmap smooth. | |
722 | */ | |
723 | #define PERF_KVM__MAX_EVENTS_PER_MMAP 25 | |
724 | ||
725 | static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx, | |
726 | u64 *mmap_time) | |
727 | { | |
728 | union perf_event *event; | |
729 | struct perf_sample sample; | |
730 | s64 n = 0; | |
731 | int err; | |
732 | ||
733 | *mmap_time = ULLONG_MAX; | |
734 | while ((event = perf_evlist__mmap_read(kvm->evlist, idx)) != NULL) { | |
735 | err = perf_evlist__parse_sample(kvm->evlist, event, &sample); | |
736 | if (err) { | |
8e50d384 | 737 | perf_evlist__mmap_consume(kvm->evlist, idx); |
1afe1d14 DA |
738 | pr_err("Failed to parse sample\n"); |
739 | return -1; | |
740 | } | |
741 | ||
b7b61cbe | 742 | err = perf_session__queue_event(kvm->session, event, &sample, 0); |
8e50d384 | 743 | /* |
b7b61cbe | 744 | * FIXME: Here we can't consume the event, as perf_session__queue_event will |
8e50d384 ZZ |
745 | * point to it, and it'll get possibly overwritten by the kernel. |
746 | */ | |
747 | perf_evlist__mmap_consume(kvm->evlist, idx); | |
748 | ||
1afe1d14 DA |
749 | if (err) { |
750 | pr_err("Failed to enqueue sample: %d\n", err); | |
751 | return -1; | |
752 | } | |
753 | ||
754 | /* save time stamp of our first sample for this mmap */ | |
755 | if (n == 0) | |
756 | *mmap_time = sample.time; | |
757 | ||
758 | /* limit events per mmap handled all at once */ | |
759 | n++; | |
760 | if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) | |
761 | break; | |
762 | } | |
763 | ||
764 | return n; | |
765 | } | |
766 | ||
767 | static int perf_kvm__mmap_read(struct perf_kvm_stat *kvm) | |
768 | { | |
769 | int i, err, throttled = 0; | |
770 | s64 n, ntotal = 0; | |
771 | u64 flush_time = ULLONG_MAX, mmap_time; | |
772 | ||
773 | for (i = 0; i < kvm->evlist->nr_mmaps; i++) { | |
774 | n = perf_kvm__mmap_read_idx(kvm, i, &mmap_time); | |
775 | if (n < 0) | |
776 | return -1; | |
777 | ||
778 | /* flush time is going to be the minimum of all the individual | |
779 | * mmap times. Essentially, we flush all the samples queued up | |
780 | * from the last pass under our minimal start time -- that leaves | |
781 | * a very small race for samples to come in with a lower timestamp. | |
782 | * The ioctl to return the perf_clock timestamp should close the | |
783 | * race entirely. | |
784 | */ | |
785 | if (mmap_time < flush_time) | |
786 | flush_time = mmap_time; | |
787 | ||
788 | ntotal += n; | |
789 | if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) | |
790 | throttled = 1; | |
791 | } | |
792 | ||
793 | /* flush queue after each round in which we processed events */ | |
794 | if (ntotal) { | |
d704ebda ACM |
795 | struct ordered_events *oe = &kvm->session->ordered_events; |
796 | ||
797 | oe->next_flush = flush_time; | |
798 | err = ordered_events__flush(oe, OE_FLUSH__ROUND); | |
1afe1d14 DA |
799 | if (err) { |
800 | if (kvm->lost_events) | |
801 | pr_info("\nLost events: %" PRIu64 "\n\n", | |
802 | kvm->lost_events); | |
803 | return err; | |
804 | } | |
805 | } | |
806 | ||
807 | return throttled; | |
808 | } | |
809 | ||
810 | static volatile int done; | |
811 | ||
812 | static void sig_handler(int sig __maybe_unused) | |
813 | { | |
814 | done = 1; | |
815 | } | |
816 | ||
817 | static int perf_kvm__timerfd_create(struct perf_kvm_stat *kvm) | |
818 | { | |
819 | struct itimerspec new_value; | |
820 | int rc = -1; | |
821 | ||
822 | kvm->timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK); | |
823 | if (kvm->timerfd < 0) { | |
824 | pr_err("timerfd_create failed\n"); | |
825 | goto out; | |
826 | } | |
827 | ||
828 | new_value.it_value.tv_sec = kvm->display_time; | |
829 | new_value.it_value.tv_nsec = 0; | |
830 | new_value.it_interval.tv_sec = kvm->display_time; | |
831 | new_value.it_interval.tv_nsec = 0; | |
832 | ||
833 | if (timerfd_settime(kvm->timerfd, 0, &new_value, NULL) != 0) { | |
834 | pr_err("timerfd_settime failed: %d\n", errno); | |
835 | close(kvm->timerfd); | |
836 | goto out; | |
837 | } | |
838 | ||
839 | rc = 0; | |
840 | out: | |
841 | return rc; | |
842 | } | |
843 | ||
844 | static int perf_kvm__handle_timerfd(struct perf_kvm_stat *kvm) | |
845 | { | |
846 | uint64_t c; | |
847 | int rc; | |
848 | ||
849 | rc = read(kvm->timerfd, &c, sizeof(uint64_t)); | |
850 | if (rc < 0) { | |
851 | if (errno == EAGAIN) | |
852 | return 0; | |
853 | ||
854 | pr_err("Failed to read timer fd: %d\n", errno); | |
855 | return -1; | |
856 | } | |
857 | ||
858 | if (rc != sizeof(uint64_t)) { | |
859 | pr_err("Error reading timer fd - invalid size returned\n"); | |
860 | return -1; | |
861 | } | |
862 | ||
863 | if (c != 1) | |
864 | pr_debug("Missed timer beats: %" PRIu64 "\n", c-1); | |
865 | ||
866 | /* update display */ | |
867 | sort_result(kvm); | |
868 | print_result(kvm); | |
869 | ||
870 | /* reset counts */ | |
871 | clear_events_cache_stats(kvm->kvm_events_cache); | |
872 | kvm->total_count = 0; | |
873 | kvm->total_time = 0; | |
874 | kvm->lost_events = 0; | |
875 | ||
876 | return 0; | |
877 | } | |
878 | ||
879 | static int fd_set_nonblock(int fd) | |
880 | { | |
881 | long arg = 0; | |
882 | ||
883 | arg = fcntl(fd, F_GETFL); | |
884 | if (arg < 0) { | |
885 | pr_err("Failed to get current flags for fd %d\n", fd); | |
886 | return -1; | |
887 | } | |
888 | ||
889 | if (fcntl(fd, F_SETFL, arg | O_NONBLOCK) < 0) { | |
890 | pr_err("Failed to set non-block option on fd %d\n", fd); | |
891 | return -1; | |
892 | } | |
893 | ||
894 | return 0; | |
895 | } | |
896 | ||
d5b4130a | 897 | static int perf_kvm__handle_stdin(void) |
1afe1d14 DA |
898 | { |
899 | int c; | |
900 | ||
1afe1d14 | 901 | c = getc(stdin); |
1afe1d14 DA |
902 | if (c == 'q') |
903 | return 1; | |
904 | ||
905 | return 0; | |
906 | } | |
907 | ||
908 | static int kvm_events_live_report(struct perf_kvm_stat *kvm) | |
909 | { | |
1ca72260 | 910 | int nr_stdin, ret, err = -EINVAL; |
d5b4130a | 911 | struct termios save; |
1afe1d14 DA |
912 | |
913 | /* live flag must be set first */ | |
914 | kvm->live = true; | |
915 | ||
916 | ret = cpu_isa_config(kvm); | |
917 | if (ret < 0) | |
918 | return ret; | |
919 | ||
920 | if (!verify_vcpu(kvm->trace_vcpu) || | |
921 | !select_key(kvm) || | |
922 | !register_kvm_events_ops(kvm)) { | |
923 | goto out; | |
924 | } | |
925 | ||
d5b4130a | 926 | set_term_quiet_input(&save); |
1afe1d14 DA |
927 | init_kvm_event_record(kvm); |
928 | ||
1afe1d14 DA |
929 | signal(SIGINT, sig_handler); |
930 | signal(SIGTERM, sig_handler); | |
931 | ||
1afe1d14 DA |
932 | /* add timer fd */ |
933 | if (perf_kvm__timerfd_create(kvm) < 0) { | |
934 | err = -1; | |
935 | goto out; | |
936 | } | |
937 | ||
fe636add | 938 | if (perf_evlist__add_pollfd(kvm->evlist, kvm->timerfd) < 0) |
0a04c9e0 ACM |
939 | goto out; |
940 | ||
0cae013c JO |
941 | nr_stdin = perf_evlist__add_pollfd(kvm->evlist, fileno(stdin)); |
942 | if (nr_stdin < 0) | |
0a04c9e0 ACM |
943 | goto out; |
944 | ||
1afe1d14 DA |
945 | if (fd_set_nonblock(fileno(stdin)) != 0) |
946 | goto out; | |
947 | ||
948 | /* everything is good - enable the events and process */ | |
949 | perf_evlist__enable(kvm->evlist); | |
950 | ||
951 | while (!done) { | |
1ca72260 | 952 | struct fdarray *fda = &kvm->evlist->pollfd; |
1afe1d14 DA |
953 | int rc; |
954 | ||
955 | rc = perf_kvm__mmap_read(kvm); | |
956 | if (rc < 0) | |
957 | break; | |
958 | ||
959 | err = perf_kvm__handle_timerfd(kvm); | |
960 | if (err) | |
961 | goto out; | |
962 | ||
1ca72260 | 963 | if (fda->entries[nr_stdin].revents & POLLIN) |
d5b4130a | 964 | done = perf_kvm__handle_stdin(); |
1afe1d14 DA |
965 | |
966 | if (!rc && !done) | |
1ca72260 | 967 | err = fdarray__poll(fda, 100); |
1afe1d14 DA |
968 | } |
969 | ||
970 | perf_evlist__disable(kvm->evlist); | |
971 | ||
972 | if (err == 0) { | |
973 | sort_result(kvm); | |
974 | print_result(kvm); | |
975 | } | |
976 | ||
977 | out: | |
978 | if (kvm->timerfd >= 0) | |
979 | close(kvm->timerfd); | |
980 | ||
d5b4130a | 981 | tcsetattr(0, TCSAFLUSH, &save); |
1afe1d14 DA |
982 | return err; |
983 | } | |
984 | ||
985 | static int kvm_live_open_events(struct perf_kvm_stat *kvm) | |
986 | { | |
987 | int err, rc = -1; | |
988 | struct perf_evsel *pos; | |
989 | struct perf_evlist *evlist = kvm->evlist; | |
f9f33fdb | 990 | char sbuf[STRERR_BUFSIZE]; |
1afe1d14 | 991 | |
e68ae9cf | 992 | perf_evlist__config(evlist, &kvm->opts, NULL); |
1afe1d14 DA |
993 | |
994 | /* | |
995 | * Note: exclude_{guest,host} do not apply here. | |
996 | * This command processes KVM tracepoints from host only | |
997 | */ | |
e5cadb93 | 998 | evlist__for_each_entry(evlist, pos) { |
1afe1d14 DA |
999 | struct perf_event_attr *attr = &pos->attr; |
1000 | ||
1001 | /* make sure these *are* set */ | |
e71aa283 AH |
1002 | perf_evsel__set_sample_bit(pos, TID); |
1003 | perf_evsel__set_sample_bit(pos, TIME); | |
1004 | perf_evsel__set_sample_bit(pos, CPU); | |
1005 | perf_evsel__set_sample_bit(pos, RAW); | |
1afe1d14 | 1006 | /* make sure these are *not*; want as small a sample as possible */ |
e71aa283 AH |
1007 | perf_evsel__reset_sample_bit(pos, PERIOD); |
1008 | perf_evsel__reset_sample_bit(pos, IP); | |
1009 | perf_evsel__reset_sample_bit(pos, CALLCHAIN); | |
1010 | perf_evsel__reset_sample_bit(pos, ADDR); | |
1011 | perf_evsel__reset_sample_bit(pos, READ); | |
1afe1d14 DA |
1012 | attr->mmap = 0; |
1013 | attr->comm = 0; | |
1014 | attr->task = 0; | |
1015 | ||
1016 | attr->sample_period = 1; | |
1017 | ||
1018 | attr->watermark = 0; | |
1019 | attr->wakeup_events = 1000; | |
1020 | ||
1021 | /* will enable all once we are ready */ | |
1022 | attr->disabled = 1; | |
1023 | } | |
1024 | ||
1025 | err = perf_evlist__open(evlist); | |
1026 | if (err < 0) { | |
f9f33fdb | 1027 | printf("Couldn't create the events: %s\n", |
c8b5f2c9 | 1028 | str_error_r(errno, sbuf, sizeof(sbuf))); |
1afe1d14 | 1029 | goto out; |
bcf6edcd XG |
1030 | } |
1031 | ||
1afe1d14 | 1032 | if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages, false) < 0) { |
f9f33fdb | 1033 | ui__error("Failed to mmap the events: %s\n", |
c8b5f2c9 | 1034 | str_error_r(errno, sbuf, sizeof(sbuf))); |
1afe1d14 DA |
1035 | perf_evlist__close(evlist); |
1036 | goto out; | |
1037 | } | |
1038 | ||
1039 | rc = 0; | |
1040 | ||
1041 | out: | |
1042 | return rc; | |
bcf6edcd | 1043 | } |
87419c9a | 1044 | #endif |
bcf6edcd | 1045 | |
3786063a | 1046 | static int read_events(struct perf_kvm_stat *kvm) |
bcf6edcd | 1047 | { |
bcf6edcd XG |
1048 | int ret; |
1049 | ||
de332ac4 DA |
1050 | struct perf_tool eops = { |
1051 | .sample = process_sample_event, | |
1052 | .comm = perf_event__process_comm, | |
f3b3614a | 1053 | .namespaces = perf_event__process_namespaces, |
0a8cb85c | 1054 | .ordered_events = true, |
de332ac4 | 1055 | }; |
f5fc1412 | 1056 | struct perf_data_file file = { |
476b3a86 | 1057 | .path = kvm->file_name, |
f5fc1412 | 1058 | .mode = PERF_DATA_MODE_READ, |
8cc5ec1f | 1059 | .force = kvm->force, |
f5fc1412 | 1060 | }; |
de332ac4 DA |
1061 | |
1062 | kvm->tool = eops; | |
f5fc1412 | 1063 | kvm->session = perf_session__new(&file, false, &kvm->tool); |
de332ac4 | 1064 | if (!kvm->session) { |
bcf6edcd | 1065 | pr_err("Initializing perf session failed\n"); |
52e02834 | 1066 | return -1; |
bcf6edcd XG |
1067 | } |
1068 | ||
0a7e6d1b | 1069 | symbol__init(&kvm->session->header.env); |
14d37f38 | 1070 | |
41b98360 TS |
1071 | if (!perf_session__has_traces(kvm->session, "kvm record")) { |
1072 | ret = -EINVAL; | |
1073 | goto out_delete; | |
1074 | } | |
bcf6edcd XG |
1075 | |
1076 | /* | |
1077 | * Do not use 'isa' recorded in kvm_exit tracepoint since it is not | |
1078 | * traced in the old kernel. | |
1079 | */ | |
1afe1d14 | 1080 | ret = cpu_isa_config(kvm); |
bcf6edcd | 1081 | if (ret < 0) |
41b98360 TS |
1082 | goto out_delete; |
1083 | ||
1084 | ret = perf_session__process_events(kvm->session); | |
bcf6edcd | 1085 | |
41b98360 TS |
1086 | out_delete: |
1087 | perf_session__delete(kvm->session); | |
1088 | return ret; | |
bcf6edcd XG |
1089 | } |
1090 | ||
2e73f00f DA |
1091 | static int parse_target_str(struct perf_kvm_stat *kvm) |
1092 | { | |
3ae4a76a AY |
1093 | if (kvm->opts.target.pid) { |
1094 | kvm->pid_list = intlist__new(kvm->opts.target.pid); | |
2e73f00f DA |
1095 | if (kvm->pid_list == NULL) { |
1096 | pr_err("Error parsing process id string\n"); | |
1097 | return -EINVAL; | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | return 0; | |
1102 | } | |
1103 | ||
3786063a | 1104 | static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
1105 | { |
1106 | int ret = -EINVAL; | |
de332ac4 | 1107 | int vcpu = kvm->trace_vcpu; |
bcf6edcd | 1108 | |
2e73f00f DA |
1109 | if (parse_target_str(kvm) != 0) |
1110 | goto exit; | |
1111 | ||
bcf6edcd XG |
1112 | if (!verify_vcpu(vcpu)) |
1113 | goto exit; | |
1114 | ||
de332ac4 | 1115 | if (!select_key(kvm)) |
bcf6edcd XG |
1116 | goto exit; |
1117 | ||
de332ac4 | 1118 | if (!register_kvm_events_ops(kvm)) |
bcf6edcd XG |
1119 | goto exit; |
1120 | ||
de332ac4 | 1121 | init_kvm_event_record(kvm); |
bcf6edcd XG |
1122 | setup_pager(); |
1123 | ||
de332ac4 | 1124 | ret = read_events(kvm); |
bcf6edcd XG |
1125 | if (ret) |
1126 | goto exit; | |
1127 | ||
de332ac4 DA |
1128 | sort_result(kvm); |
1129 | print_result(kvm); | |
1130 | ||
bcf6edcd XG |
1131 | exit: |
1132 | return ret; | |
1133 | } | |
1134 | ||
bcf6edcd XG |
1135 | #define STRDUP_FAIL_EXIT(s) \ |
1136 | ({ char *_p; \ | |
1137 | _p = strdup(s); \ | |
1138 | if (!_p) \ | |
1139 | return -ENOMEM; \ | |
1140 | _p; \ | |
1141 | }) | |
1142 | ||
066d3593 HK |
1143 | int __weak setup_kvm_events_tp(struct perf_kvm_stat *kvm __maybe_unused) |
1144 | { | |
1145 | return 0; | |
1146 | } | |
1147 | ||
3786063a XG |
1148 | static int |
1149 | kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) | |
bcf6edcd | 1150 | { |
9daa8123 | 1151 | unsigned int rec_argc, i, j, events_tp_size; |
bcf6edcd | 1152 | const char **rec_argv; |
8fdd84c4 DA |
1153 | const char * const record_args[] = { |
1154 | "record", | |
1155 | "-R", | |
8fdd84c4 DA |
1156 | "-m", "1024", |
1157 | "-c", "1", | |
1158 | }; | |
f45d20ff NK |
1159 | const char * const kvm_stat_record_usage[] = { |
1160 | "perf kvm stat record [<options>]", | |
1161 | NULL | |
1162 | }; | |
9daa8123 | 1163 | const char * const *events_tp; |
066d3593 HK |
1164 | int ret; |
1165 | ||
9daa8123 | 1166 | events_tp_size = 0; |
066d3593 HK |
1167 | ret = setup_kvm_events_tp(kvm); |
1168 | if (ret < 0) { | |
1169 | pr_err("Unable to setup the kvm tracepoints\n"); | |
1170 | return ret; | |
1171 | } | |
9daa8123 AY |
1172 | |
1173 | for (events_tp = kvm_events_tp; *events_tp; events_tp++) | |
1174 | events_tp_size++; | |
bcf6edcd | 1175 | |
8fdd84c4 | 1176 | rec_argc = ARRAY_SIZE(record_args) + argc + 2 + |
9daa8123 | 1177 | 2 * events_tp_size; |
bcf6edcd XG |
1178 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1179 | ||
1180 | if (rec_argv == NULL) | |
1181 | return -ENOMEM; | |
1182 | ||
1183 | for (i = 0; i < ARRAY_SIZE(record_args); i++) | |
1184 | rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]); | |
1185 | ||
9daa8123 | 1186 | for (j = 0; j < events_tp_size; j++) { |
8fdd84c4 DA |
1187 | rec_argv[i++] = "-e"; |
1188 | rec_argv[i++] = STRDUP_FAIL_EXIT(kvm_events_tp[j]); | |
1189 | } | |
1190 | ||
bcf6edcd | 1191 | rec_argv[i++] = STRDUP_FAIL_EXIT("-o"); |
de332ac4 | 1192 | rec_argv[i++] = STRDUP_FAIL_EXIT(kvm->file_name); |
bcf6edcd XG |
1193 | |
1194 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1195 | rec_argv[i] = argv[j]; | |
1196 | ||
f45d20ff NK |
1197 | set_option_flag(record_options, 'e', "event", PARSE_OPT_HIDDEN); |
1198 | set_option_flag(record_options, 0, "filter", PARSE_OPT_HIDDEN); | |
1199 | set_option_flag(record_options, 'R', "raw-samples", PARSE_OPT_HIDDEN); | |
1200 | ||
1201 | set_option_flag(record_options, 'F', "freq", PARSE_OPT_DISABLED); | |
1202 | set_option_flag(record_options, 0, "group", PARSE_OPT_DISABLED); | |
1203 | set_option_flag(record_options, 'g', NULL, PARSE_OPT_DISABLED); | |
1204 | set_option_flag(record_options, 0, "call-graph", PARSE_OPT_DISABLED); | |
1205 | set_option_flag(record_options, 'd', "data", PARSE_OPT_DISABLED); | |
1206 | set_option_flag(record_options, 'T', "timestamp", PARSE_OPT_DISABLED); | |
1207 | set_option_flag(record_options, 'P', "period", PARSE_OPT_DISABLED); | |
1208 | set_option_flag(record_options, 'n', "no-samples", PARSE_OPT_DISABLED); | |
1209 | set_option_flag(record_options, 'N', "no-buildid-cache", PARSE_OPT_DISABLED); | |
1210 | set_option_flag(record_options, 'B', "no-buildid", PARSE_OPT_DISABLED); | |
1211 | set_option_flag(record_options, 'G', "cgroup", PARSE_OPT_DISABLED); | |
1212 | set_option_flag(record_options, 'b', "branch-any", PARSE_OPT_DISABLED); | |
1213 | set_option_flag(record_options, 'j', "branch-filter", PARSE_OPT_DISABLED); | |
1214 | set_option_flag(record_options, 'W', "weight", PARSE_OPT_DISABLED); | |
1215 | set_option_flag(record_options, 0, "transaction", PARSE_OPT_DISABLED); | |
1216 | ||
1217 | record_usage = kvm_stat_record_usage; | |
b0ad8ea6 | 1218 | return cmd_record(i, rec_argv); |
bcf6edcd XG |
1219 | } |
1220 | ||
3786063a XG |
1221 | static int |
1222 | kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) | |
de332ac4 DA |
1223 | { |
1224 | const struct option kvm_events_report_options[] = { | |
1225 | OPT_STRING(0, "event", &kvm->report_event, "report event", | |
3be8e2a0 AY |
1226 | "event for reporting: vmexit, " |
1227 | "mmio (x86 only), ioport (x86 only)"), | |
de332ac4 DA |
1228 | OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, |
1229 | "vcpu id to report"), | |
1230 | OPT_STRING('k', "key", &kvm->sort_key, "sort-key", | |
1231 | "key for sorting: sample(sort by samples number)" | |
1232 | " time (sort by avg time)"), | |
3ae4a76a | 1233 | OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid", |
2e73f00f | 1234 | "analyze events only for given process id(s)"), |
8cc5ec1f | 1235 | OPT_BOOLEAN('f', "force", &kvm->force, "don't complain, do it"), |
de332ac4 DA |
1236 | OPT_END() |
1237 | }; | |
bcf6edcd | 1238 | |
de332ac4 DA |
1239 | const char * const kvm_events_report_usage[] = { |
1240 | "perf kvm stat report [<options>]", | |
1241 | NULL | |
1242 | }; | |
bcf6edcd | 1243 | |
bcf6edcd XG |
1244 | if (argc) { |
1245 | argc = parse_options(argc, argv, | |
1246 | kvm_events_report_options, | |
1247 | kvm_events_report_usage, 0); | |
1248 | if (argc) | |
1249 | usage_with_options(kvm_events_report_usage, | |
1250 | kvm_events_report_options); | |
1251 | } | |
1252 | ||
f181957c AY |
1253 | if (!kvm->opts.target.pid) |
1254 | kvm->opts.target.system_wide = true; | |
1255 | ||
de332ac4 | 1256 | return kvm_events_report_vcpu(kvm); |
bcf6edcd XG |
1257 | } |
1258 | ||
87419c9a | 1259 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
1260 | static struct perf_evlist *kvm_live_event_list(void) |
1261 | { | |
1262 | struct perf_evlist *evlist; | |
1263 | char *tp, *name, *sys; | |
1afe1d14 | 1264 | int err = -1; |
9daa8123 | 1265 | const char * const *events_tp; |
1afe1d14 DA |
1266 | |
1267 | evlist = perf_evlist__new(); | |
1268 | if (evlist == NULL) | |
1269 | return NULL; | |
1270 | ||
9daa8123 | 1271 | for (events_tp = kvm_events_tp; *events_tp; events_tp++) { |
1afe1d14 | 1272 | |
9daa8123 | 1273 | tp = strdup(*events_tp); |
1afe1d14 DA |
1274 | if (tp == NULL) |
1275 | goto out; | |
1276 | ||
1277 | /* split tracepoint into subsystem and name */ | |
1278 | sys = tp; | |
1279 | name = strchr(tp, ':'); | |
1280 | if (name == NULL) { | |
1281 | pr_err("Error parsing %s tracepoint: subsystem delimiter not found\n", | |
9daa8123 | 1282 | *events_tp); |
1afe1d14 DA |
1283 | free(tp); |
1284 | goto out; | |
1285 | } | |
1286 | *name = '\0'; | |
1287 | name++; | |
1288 | ||
1289 | if (perf_evlist__add_newtp(evlist, sys, name, NULL)) { | |
9daa8123 | 1290 | pr_err("Failed to add %s tracepoint to the list\n", *events_tp); |
1afe1d14 DA |
1291 | free(tp); |
1292 | goto out; | |
1293 | } | |
1294 | ||
1295 | free(tp); | |
1296 | } | |
1297 | ||
1298 | err = 0; | |
1299 | ||
1300 | out: | |
1301 | if (err) { | |
1302 | perf_evlist__delete(evlist); | |
1303 | evlist = NULL; | |
1304 | } | |
1305 | ||
1306 | return evlist; | |
1307 | } | |
1308 | ||
1309 | static int kvm_events_live(struct perf_kvm_stat *kvm, | |
1310 | int argc, const char **argv) | |
1311 | { | |
1312 | char errbuf[BUFSIZ]; | |
1313 | int err; | |
1314 | ||
1315 | const struct option live_options[] = { | |
1316 | OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid", | |
1317 | "record events on existing process id"), | |
994a1f78 JO |
1318 | OPT_CALLBACK('m', "mmap-pages", &kvm->opts.mmap_pages, "pages", |
1319 | "number of mmap data pages", | |
1320 | perf_evlist__parse_mmap_pages), | |
1afe1d14 DA |
1321 | OPT_INCR('v', "verbose", &verbose, |
1322 | "be more verbose (show counter open errors, etc)"), | |
1323 | OPT_BOOLEAN('a', "all-cpus", &kvm->opts.target.system_wide, | |
1324 | "system-wide collection from all CPUs"), | |
1325 | OPT_UINTEGER('d', "display", &kvm->display_time, | |
1326 | "time in seconds between display updates"), | |
1327 | OPT_STRING(0, "event", &kvm->report_event, "report event", | |
99d348a8 AY |
1328 | "event for reporting: " |
1329 | "vmexit, mmio (x86 only), ioport (x86 only)"), | |
1afe1d14 DA |
1330 | OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, |
1331 | "vcpu id to report"), | |
1332 | OPT_STRING('k', "key", &kvm->sort_key, "sort-key", | |
1333 | "key for sorting: sample(sort by samples number)" | |
1334 | " time (sort by avg time)"), | |
70f7b4a7 | 1335 | OPT_U64(0, "duration", &kvm->duration, |
3be8e2a0 AY |
1336 | "show events other than" |
1337 | " HLT (x86 only) or Wait state (s390 only)" | |
1338 | " that take longer than duration usecs"), | |
9d9cad76 KL |
1339 | OPT_UINTEGER(0, "proc-map-timeout", &kvm->opts.proc_map_timeout, |
1340 | "per thread proc mmap processing timeout in ms"), | |
1afe1d14 DA |
1341 | OPT_END() |
1342 | }; | |
1343 | const char * const live_usage[] = { | |
1344 | "perf kvm stat live [<options>]", | |
1345 | NULL | |
1346 | }; | |
f5fc1412 JO |
1347 | struct perf_data_file file = { |
1348 | .mode = PERF_DATA_MODE_WRITE, | |
1349 | }; | |
1afe1d14 DA |
1350 | |
1351 | ||
1352 | /* event handling */ | |
1353 | kvm->tool.sample = process_sample_event; | |
1354 | kvm->tool.comm = perf_event__process_comm; | |
1355 | kvm->tool.exit = perf_event__process_exit; | |
1356 | kvm->tool.fork = perf_event__process_fork; | |
1357 | kvm->tool.lost = process_lost_event; | |
f3b3614a | 1358 | kvm->tool.namespaces = perf_event__process_namespaces; |
0a8cb85c | 1359 | kvm->tool.ordered_events = true; |
1afe1d14 DA |
1360 | perf_tool__fill_defaults(&kvm->tool); |
1361 | ||
1362 | /* set defaults */ | |
1363 | kvm->display_time = 1; | |
1364 | kvm->opts.user_interval = 1; | |
1365 | kvm->opts.mmap_pages = 512; | |
1366 | kvm->opts.target.uses_mmap = false; | |
1367 | kvm->opts.target.uid_str = NULL; | |
1368 | kvm->opts.target.uid = UINT_MAX; | |
9d9cad76 | 1369 | kvm->opts.proc_map_timeout = 500; |
1afe1d14 | 1370 | |
0a7e6d1b | 1371 | symbol__init(NULL); |
1afe1d14 DA |
1372 | disable_buildid_cache(); |
1373 | ||
1374 | use_browser = 0; | |
1afe1d14 DA |
1375 | |
1376 | if (argc) { | |
1377 | argc = parse_options(argc, argv, live_options, | |
1378 | live_usage, 0); | |
1379 | if (argc) | |
1380 | usage_with_options(live_usage, live_options); | |
1381 | } | |
1382 | ||
70f7b4a7 DA |
1383 | kvm->duration *= NSEC_PER_USEC; /* convert usec to nsec */ |
1384 | ||
1afe1d14 DA |
1385 | /* |
1386 | * target related setups | |
1387 | */ | |
602ad878 | 1388 | err = target__validate(&kvm->opts.target); |
1afe1d14 | 1389 | if (err) { |
602ad878 | 1390 | target__strerror(&kvm->opts.target, err, errbuf, BUFSIZ); |
1afe1d14 DA |
1391 | ui__warning("%s", errbuf); |
1392 | } | |
1393 | ||
602ad878 | 1394 | if (target__none(&kvm->opts.target)) |
1afe1d14 DA |
1395 | kvm->opts.target.system_wide = true; |
1396 | ||
1397 | ||
1398 | /* | |
1399 | * generate the event list | |
1400 | */ | |
066d3593 HK |
1401 | err = setup_kvm_events_tp(kvm); |
1402 | if (err < 0) { | |
1403 | pr_err("Unable to setup the kvm tracepoints\n"); | |
1404 | return err; | |
1405 | } | |
1406 | ||
1afe1d14 DA |
1407 | kvm->evlist = kvm_live_event_list(); |
1408 | if (kvm->evlist == NULL) { | |
1409 | err = -1; | |
1410 | goto out; | |
1411 | } | |
1412 | ||
1413 | symbol_conf.nr_events = kvm->evlist->nr_entries; | |
1414 | ||
1415 | if (perf_evlist__create_maps(kvm->evlist, &kvm->opts.target) < 0) | |
1416 | usage_with_options(live_usage, live_options); | |
1417 | ||
1418 | /* | |
1419 | * perf session | |
1420 | */ | |
f5fc1412 | 1421 | kvm->session = perf_session__new(&file, false, &kvm->tool); |
1afe1d14 | 1422 | if (kvm->session == NULL) { |
52e02834 | 1423 | err = -1; |
1afe1d14 DA |
1424 | goto out; |
1425 | } | |
1426 | kvm->session->evlist = kvm->evlist; | |
1427 | perf_session__set_id_hdr_size(kvm->session); | |
673d659f | 1428 | ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true); |
a33fbd56 | 1429 | machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target, |
9d9cad76 | 1430 | kvm->evlist->threads, false, kvm->opts.proc_map_timeout); |
1afe1d14 DA |
1431 | err = kvm_live_open_events(kvm); |
1432 | if (err) | |
1433 | goto out; | |
1434 | ||
1435 | err = kvm_events_live_report(kvm); | |
1436 | ||
1437 | out: | |
e1446551 | 1438 | perf_session__delete(kvm->session); |
1afe1d14 | 1439 | kvm->session = NULL; |
0b04b3dc | 1440 | perf_evlist__delete(kvm->evlist); |
1afe1d14 DA |
1441 | |
1442 | return err; | |
1443 | } | |
87419c9a | 1444 | #endif |
1afe1d14 | 1445 | |
bcf6edcd XG |
1446 | static void print_kvm_stat_usage(void) |
1447 | { | |
1448 | printf("Usage: perf kvm stat <command>\n\n"); | |
1449 | ||
1450 | printf("# Available commands:\n"); | |
1451 | printf("\trecord: record kvm events\n"); | |
1452 | printf("\treport: report statistical data of kvm events\n"); | |
1afe1d14 | 1453 | printf("\tlive: live reporting of statistical data of kvm events\n"); |
bcf6edcd XG |
1454 | |
1455 | printf("\nOtherwise, it is the alias of 'perf stat':\n"); | |
1456 | } | |
1457 | ||
3786063a | 1458 | static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) |
bcf6edcd | 1459 | { |
3786063a XG |
1460 | struct perf_kvm_stat kvm = { |
1461 | .file_name = file_name, | |
1462 | ||
1463 | .trace_vcpu = -1, | |
1464 | .report_event = "vmexit", | |
1465 | .sort_key = "sample", | |
1466 | ||
3786063a XG |
1467 | }; |
1468 | ||
bcf6edcd XG |
1469 | if (argc == 1) { |
1470 | print_kvm_stat_usage(); | |
1471 | goto perf_stat; | |
1472 | } | |
1473 | ||
1474 | if (!strncmp(argv[1], "rec", 3)) | |
3786063a | 1475 | return kvm_events_record(&kvm, argc - 1, argv + 1); |
bcf6edcd XG |
1476 | |
1477 | if (!strncmp(argv[1], "rep", 3)) | |
3786063a | 1478 | return kvm_events_report(&kvm, argc - 1 , argv + 1); |
bcf6edcd | 1479 | |
87419c9a | 1480 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
1481 | if (!strncmp(argv[1], "live", 4)) |
1482 | return kvm_events_live(&kvm, argc - 1 , argv + 1); | |
87419c9a | 1483 | #endif |
1afe1d14 | 1484 | |
bcf6edcd | 1485 | perf_stat: |
b0ad8ea6 | 1486 | return cmd_stat(argc, argv); |
bcf6edcd | 1487 | } |
da50ad69 | 1488 | #endif /* HAVE_KVM_STAT_SUPPORT */ |
bcf6edcd | 1489 | |
3786063a | 1490 | static int __cmd_record(const char *file_name, int argc, const char **argv) |
a1645ce1 ZY |
1491 | { |
1492 | int rec_argc, i = 0, j; | |
1493 | const char **rec_argv; | |
1494 | ||
1495 | rec_argc = argc + 2; | |
1496 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1497 | rec_argv[i++] = strdup("record"); | |
1498 | rec_argv[i++] = strdup("-o"); | |
3786063a | 1499 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1500 | for (j = 1; j < argc; j++, i++) |
1501 | rec_argv[i] = argv[j]; | |
1502 | ||
1503 | BUG_ON(i != rec_argc); | |
1504 | ||
b0ad8ea6 | 1505 | return cmd_record(i, rec_argv); |
a1645ce1 ZY |
1506 | } |
1507 | ||
3786063a | 1508 | static int __cmd_report(const char *file_name, int argc, const char **argv) |
a1645ce1 ZY |
1509 | { |
1510 | int rec_argc, i = 0, j; | |
1511 | const char **rec_argv; | |
1512 | ||
1513 | rec_argc = argc + 2; | |
1514 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1515 | rec_argv[i++] = strdup("report"); | |
1516 | rec_argv[i++] = strdup("-i"); | |
3786063a | 1517 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1518 | for (j = 1; j < argc; j++, i++) |
1519 | rec_argv[i] = argv[j]; | |
1520 | ||
1521 | BUG_ON(i != rec_argc); | |
1522 | ||
b0ad8ea6 | 1523 | return cmd_report(i, rec_argv); |
a1645ce1 ZY |
1524 | } |
1525 | ||
3786063a XG |
1526 | static int |
1527 | __cmd_buildid_list(const char *file_name, int argc, const char **argv) | |
a1645ce1 ZY |
1528 | { |
1529 | int rec_argc, i = 0, j; | |
1530 | const char **rec_argv; | |
1531 | ||
1532 | rec_argc = argc + 2; | |
1533 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1534 | rec_argv[i++] = strdup("buildid-list"); | |
1535 | rec_argv[i++] = strdup("-i"); | |
3786063a | 1536 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1537 | for (j = 1; j < argc; j++, i++) |
1538 | rec_argv[i] = argv[j]; | |
1539 | ||
1540 | BUG_ON(i != rec_argc); | |
1541 | ||
b0ad8ea6 | 1542 | return cmd_buildid_list(i, rec_argv); |
a1645ce1 ZY |
1543 | } |
1544 | ||
b0ad8ea6 | 1545 | int cmd_kvm(int argc, const char **argv) |
a1645ce1 | 1546 | { |
20914ce5 | 1547 | const char *file_name = NULL; |
de332ac4 | 1548 | const struct option kvm_options[] = { |
3786063a | 1549 | OPT_STRING('i', "input", &file_name, "file", |
de332ac4 | 1550 | "Input file name"), |
3786063a | 1551 | OPT_STRING('o', "output", &file_name, "file", |
de332ac4 DA |
1552 | "Output file name"), |
1553 | OPT_BOOLEAN(0, "guest", &perf_guest, | |
1554 | "Collect guest os data"), | |
1555 | OPT_BOOLEAN(0, "host", &perf_host, | |
1556 | "Collect host os data"), | |
1557 | OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory", | |
1558 | "guest mount directory under which every guest os" | |
1559 | " instance has a subdir"), | |
1560 | OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name, | |
1561 | "file", "file saving guest os vmlinux"), | |
1562 | OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms, | |
1563 | "file", "file saving guest os /proc/kallsyms"), | |
1564 | OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, | |
1565 | "file", "file saving guest os /proc/modules"), | |
100b9073 DY |
1566 | OPT_INCR('v', "verbose", &verbose, |
1567 | "be more verbose (show counter open errors, etc)"), | |
de332ac4 DA |
1568 | OPT_END() |
1569 | }; | |
1570 | ||
09a71b97 RR |
1571 | const char *const kvm_subcommands[] = { "top", "record", "report", "diff", |
1572 | "buildid-list", "stat", NULL }; | |
1573 | const char *kvm_usage[] = { NULL, NULL }; | |
de332ac4 | 1574 | |
1aed2671 JR |
1575 | perf_host = 0; |
1576 | perf_guest = 1; | |
a1645ce1 | 1577 | |
09a71b97 RR |
1578 | argc = parse_options_subcommand(argc, argv, kvm_options, kvm_subcommands, kvm_usage, |
1579 | PARSE_OPT_STOP_AT_NON_OPTION); | |
a1645ce1 ZY |
1580 | if (!argc) |
1581 | usage_with_options(kvm_usage, kvm_options); | |
1582 | ||
1583 | if (!perf_host) | |
1584 | perf_guest = 1; | |
1585 | ||
3786063a | 1586 | if (!file_name) { |
e1a2b174 | 1587 | file_name = get_filename_for_perf_kvm(); |
de332ac4 | 1588 | |
3786063a | 1589 | if (!file_name) { |
de332ac4 DA |
1590 | pr_err("Failed to allocate memory for filename\n"); |
1591 | return -ENOMEM; | |
1592 | } | |
a1645ce1 ZY |
1593 | } |
1594 | ||
1595 | if (!strncmp(argv[0], "rec", 3)) | |
3786063a | 1596 | return __cmd_record(file_name, argc, argv); |
a1645ce1 | 1597 | else if (!strncmp(argv[0], "rep", 3)) |
3786063a | 1598 | return __cmd_report(file_name, argc, argv); |
a1645ce1 | 1599 | else if (!strncmp(argv[0], "diff", 4)) |
b0ad8ea6 | 1600 | return cmd_diff(argc, argv); |
a1645ce1 | 1601 | else if (!strncmp(argv[0], "top", 3)) |
b0ad8ea6 | 1602 | return cmd_top(argc, argv); |
a1645ce1 | 1603 | else if (!strncmp(argv[0], "buildid-list", 12)) |
3786063a | 1604 | return __cmd_buildid_list(file_name, argc, argv); |
da50ad69 | 1605 | #ifdef HAVE_KVM_STAT_SUPPORT |
bcf6edcd | 1606 | else if (!strncmp(argv[0], "stat", 4)) |
3786063a | 1607 | return kvm_cmd_stat(file_name, argc, argv); |
7321090f | 1608 | #endif |
a1645ce1 ZY |
1609 | else |
1610 | usage_with_options(kvm_usage, kvm_options); | |
1611 | ||
1612 | return 0; | |
1613 | } |