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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> |
4208735d | 33 | #include <poll.h> |
1afe1d14 | 34 | #include <termios.h> |
a1645ce1 | 35 | #include <semaphore.h> |
9607ad3a | 36 | #include <signal.h> |
a1645ce1 ZY |
37 | #include <pthread.h> |
38 | #include <math.h> | |
39 | ||
bb8c16db ACM |
40 | static const char *get_filename_for_perf_kvm(void) |
41 | { | |
42 | const char *filename; | |
43 | ||
44 | if (perf_host && !perf_guest) | |
45 | filename = strdup("perf.data.host"); | |
46 | else if (!perf_host && perf_guest) | |
47 | filename = strdup("perf.data.guest"); | |
48 | else | |
49 | filename = strdup("perf.data.kvm"); | |
50 | ||
51 | return filename; | |
52 | } | |
53 | ||
da50ad69 | 54 | #ifdef HAVE_KVM_STAT_SUPPORT |
9daa8123 | 55 | #include "util/kvm-stat.h" |
bcf6edcd | 56 | |
9daa8123 AY |
57 | void exit_event_get_key(struct perf_evsel *evsel, |
58 | struct perf_sample *sample, | |
59 | struct event_key *key) | |
bcf6edcd XG |
60 | { |
61 | key->info = 0; | |
162607ea | 62 | key->key = perf_evsel__intval(evsel, sample, kvm_exit_reason); |
bcf6edcd XG |
63 | } |
64 | ||
9daa8123 | 65 | bool kvm_exit_event(struct perf_evsel *evsel) |
bcf6edcd | 66 | { |
162607ea | 67 | return !strcmp(evsel->name, kvm_exit_trace); |
bcf6edcd XG |
68 | } |
69 | ||
9daa8123 AY |
70 | bool exit_event_begin(struct perf_evsel *evsel, |
71 | struct perf_sample *sample, struct event_key *key) | |
bcf6edcd | 72 | { |
14907e73 ACM |
73 | if (kvm_exit_event(evsel)) { |
74 | exit_event_get_key(evsel, sample, key); | |
bcf6edcd XG |
75 | return true; |
76 | } | |
77 | ||
78 | return false; | |
79 | } | |
80 | ||
9daa8123 | 81 | bool kvm_entry_event(struct perf_evsel *evsel) |
bcf6edcd | 82 | { |
162607ea | 83 | return !strcmp(evsel->name, kvm_entry_trace); |
bcf6edcd XG |
84 | } |
85 | ||
9daa8123 AY |
86 | bool exit_event_end(struct perf_evsel *evsel, |
87 | struct perf_sample *sample __maybe_unused, | |
88 | struct event_key *key __maybe_unused) | |
bcf6edcd | 89 | { |
14907e73 | 90 | return kvm_entry_event(evsel); |
bcf6edcd XG |
91 | } |
92 | ||
df74c13b AY |
93 | static const char *get_exit_reason(struct perf_kvm_stat *kvm, |
94 | struct exit_reasons_table *tbl, | |
95 | u64 exit_code) | |
bcf6edcd | 96 | { |
df74c13b | 97 | while (tbl->reason != NULL) { |
de332ac4 DA |
98 | if (tbl->exit_code == exit_code) |
99 | return tbl->reason; | |
100 | tbl++; | |
bcf6edcd XG |
101 | } |
102 | ||
103 | pr_err("unknown kvm exit code:%lld on %s\n", | |
de332ac4 | 104 | (unsigned long long)exit_code, kvm->exit_reasons_isa); |
bcf6edcd XG |
105 | return "UNKNOWN"; |
106 | } | |
107 | ||
9daa8123 AY |
108 | void exit_event_decode_key(struct perf_kvm_stat *kvm, |
109 | struct event_key *key, | |
110 | char *decode) | |
bcf6edcd | 111 | { |
3be8e2a0 | 112 | const char *exit_reason = get_exit_reason(kvm, key->exit_reasons, |
df74c13b | 113 | key->key); |
bcf6edcd | 114 | |
162607ea | 115 | scnprintf(decode, decode_str_len, "%s", exit_reason); |
bcf6edcd XG |
116 | } |
117 | ||
9daa8123 | 118 | static bool register_kvm_events_ops(struct perf_kvm_stat *kvm) |
bcf6edcd | 119 | { |
9daa8123 | 120 | struct kvm_reg_events_ops *events_ops = kvm_reg_events_ops; |
bcf6edcd | 121 | |
9daa8123 AY |
122 | for (events_ops = kvm_reg_events_ops; events_ops->name; events_ops++) { |
123 | if (!strcmp(events_ops->name, kvm->report_event)) { | |
124 | kvm->events_ops = events_ops->ops; | |
125 | return true; | |
126 | } | |
bcf6edcd XG |
127 | } |
128 | ||
129 | return false; | |
130 | } | |
131 | ||
bcf6edcd XG |
132 | struct vcpu_event_record { |
133 | int vcpu_id; | |
134 | u64 start_time; | |
135 | struct kvm_event *last_event; | |
136 | }; | |
137 | ||
bcf6edcd | 138 | |
3786063a | 139 | static void init_kvm_event_record(struct perf_kvm_stat *kvm) |
bcf6edcd | 140 | { |
b880deea | 141 | unsigned int i; |
bcf6edcd | 142 | |
b880deea | 143 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) |
de332ac4 | 144 | INIT_LIST_HEAD(&kvm->kvm_events_cache[i]); |
bcf6edcd XG |
145 | } |
146 | ||
87419c9a | 147 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
148 | static void clear_events_cache_stats(struct list_head *kvm_events_cache) |
149 | { | |
150 | struct list_head *head; | |
151 | struct kvm_event *event; | |
152 | unsigned int i; | |
62d04dbf | 153 | int j; |
1afe1d14 DA |
154 | |
155 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) { | |
156 | head = &kvm_events_cache[i]; | |
157 | list_for_each_entry(event, head, hash_entry) { | |
158 | /* reset stats for event */ | |
62d04dbf DA |
159 | event->total.time = 0; |
160 | init_stats(&event->total.stats); | |
161 | ||
162 | for (j = 0; j < event->max_vcpu; ++j) { | |
163 | event->vcpu[j].time = 0; | |
164 | init_stats(&event->vcpu[j].stats); | |
165 | } | |
1afe1d14 DA |
166 | } |
167 | } | |
168 | } | |
87419c9a | 169 | #endif |
1afe1d14 | 170 | |
bcf6edcd XG |
171 | static int kvm_events_hash_fn(u64 key) |
172 | { | |
173 | return key & (EVENTS_CACHE_SIZE - 1); | |
174 | } | |
175 | ||
176 | static bool kvm_event_expand(struct kvm_event *event, int vcpu_id) | |
177 | { | |
178 | int old_max_vcpu = event->max_vcpu; | |
6ca5f308 | 179 | void *prev; |
bcf6edcd XG |
180 | |
181 | if (vcpu_id < event->max_vcpu) | |
182 | return true; | |
183 | ||
184 | while (event->max_vcpu <= vcpu_id) | |
185 | event->max_vcpu += DEFAULT_VCPU_NUM; | |
186 | ||
6ca5f308 | 187 | prev = event->vcpu; |
bcf6edcd XG |
188 | event->vcpu = realloc(event->vcpu, |
189 | event->max_vcpu * sizeof(*event->vcpu)); | |
190 | if (!event->vcpu) { | |
6ca5f308 | 191 | free(prev); |
bcf6edcd XG |
192 | pr_err("Not enough memory\n"); |
193 | return false; | |
194 | } | |
195 | ||
196 | memset(event->vcpu + old_max_vcpu, 0, | |
197 | (event->max_vcpu - old_max_vcpu) * sizeof(*event->vcpu)); | |
198 | return true; | |
199 | } | |
200 | ||
201 | static struct kvm_event *kvm_alloc_init_event(struct event_key *key) | |
202 | { | |
203 | struct kvm_event *event; | |
204 | ||
205 | event = zalloc(sizeof(*event)); | |
206 | if (!event) { | |
207 | pr_err("Not enough memory\n"); | |
208 | return NULL; | |
209 | } | |
210 | ||
211 | event->key = *key; | |
acb61fc8 | 212 | init_stats(&event->total.stats); |
bcf6edcd XG |
213 | return event; |
214 | } | |
215 | ||
3786063a | 216 | static struct kvm_event *find_create_kvm_event(struct perf_kvm_stat *kvm, |
de332ac4 | 217 | struct event_key *key) |
bcf6edcd XG |
218 | { |
219 | struct kvm_event *event; | |
220 | struct list_head *head; | |
221 | ||
222 | BUG_ON(key->key == INVALID_KEY); | |
223 | ||
de332ac4 | 224 | head = &kvm->kvm_events_cache[kvm_events_hash_fn(key->key)]; |
355afe81 | 225 | list_for_each_entry(event, head, hash_entry) { |
bcf6edcd XG |
226 | if (event->key.key == key->key && event->key.info == key->info) |
227 | return event; | |
355afe81 | 228 | } |
bcf6edcd XG |
229 | |
230 | event = kvm_alloc_init_event(key); | |
231 | if (!event) | |
232 | return NULL; | |
233 | ||
234 | list_add(&event->hash_entry, head); | |
235 | return event; | |
236 | } | |
237 | ||
3786063a | 238 | static bool handle_begin_event(struct perf_kvm_stat *kvm, |
de332ac4 | 239 | struct vcpu_event_record *vcpu_record, |
bcf6edcd XG |
240 | struct event_key *key, u64 timestamp) |
241 | { | |
242 | struct kvm_event *event = NULL; | |
243 | ||
244 | if (key->key != INVALID_KEY) | |
de332ac4 | 245 | event = find_create_kvm_event(kvm, key); |
bcf6edcd XG |
246 | |
247 | vcpu_record->last_event = event; | |
248 | vcpu_record->start_time = timestamp; | |
249 | return true; | |
250 | } | |
251 | ||
252 | static void | |
253 | kvm_update_event_stats(struct kvm_event_stats *kvm_stats, u64 time_diff) | |
254 | { | |
255 | kvm_stats->time += time_diff; | |
256 | update_stats(&kvm_stats->stats, time_diff); | |
257 | } | |
258 | ||
259 | static double kvm_event_rel_stddev(int vcpu_id, struct kvm_event *event) | |
260 | { | |
261 | struct kvm_event_stats *kvm_stats = &event->total; | |
262 | ||
263 | if (vcpu_id != -1) | |
264 | kvm_stats = &event->vcpu[vcpu_id]; | |
265 | ||
266 | return rel_stddev_stats(stddev_stats(&kvm_stats->stats), | |
267 | avg_stats(&kvm_stats->stats)); | |
268 | } | |
269 | ||
270 | static bool update_kvm_event(struct kvm_event *event, int vcpu_id, | |
271 | u64 time_diff) | |
272 | { | |
2aa8eab0 DA |
273 | if (vcpu_id == -1) { |
274 | kvm_update_event_stats(&event->total, time_diff); | |
275 | return true; | |
276 | } | |
bcf6edcd XG |
277 | |
278 | if (!kvm_event_expand(event, vcpu_id)) | |
279 | return false; | |
280 | ||
281 | kvm_update_event_stats(&event->vcpu[vcpu_id], time_diff); | |
282 | return true; | |
283 | } | |
284 | ||
3be8e2a0 AY |
285 | static bool is_child_event(struct perf_kvm_stat *kvm, |
286 | struct perf_evsel *evsel, | |
287 | struct perf_sample *sample, | |
288 | struct event_key *key) | |
289 | { | |
290 | struct child_event_ops *child_ops; | |
291 | ||
292 | child_ops = kvm->events_ops->child_ops; | |
293 | ||
294 | if (!child_ops) | |
295 | return false; | |
296 | ||
297 | for (; child_ops->name; child_ops++) { | |
298 | if (!strcmp(evsel->name, child_ops->name)) { | |
299 | child_ops->get_key(evsel, sample, key); | |
300 | return true; | |
301 | } | |
302 | } | |
303 | ||
304 | return false; | |
305 | } | |
306 | ||
307 | static bool handle_child_event(struct perf_kvm_stat *kvm, | |
308 | struct vcpu_event_record *vcpu_record, | |
309 | struct event_key *key, | |
310 | struct perf_sample *sample __maybe_unused) | |
311 | { | |
312 | struct kvm_event *event = NULL; | |
313 | ||
314 | if (key->key != INVALID_KEY) | |
315 | event = find_create_kvm_event(kvm, key); | |
316 | ||
317 | vcpu_record->last_event = event; | |
318 | ||
319 | return true; | |
320 | } | |
321 | ||
54c801ff AY |
322 | static bool skip_event(const char *event) |
323 | { | |
324 | const char * const *skip_events; | |
325 | ||
326 | for (skip_events = kvm_skip_events; *skip_events; skip_events++) | |
327 | if (!strcmp(event, *skip_events)) | |
328 | return true; | |
329 | ||
330 | return false; | |
331 | } | |
332 | ||
3786063a | 333 | static bool handle_end_event(struct perf_kvm_stat *kvm, |
de332ac4 DA |
334 | struct vcpu_event_record *vcpu_record, |
335 | struct event_key *key, | |
70f7b4a7 | 336 | struct perf_sample *sample) |
bcf6edcd XG |
337 | { |
338 | struct kvm_event *event; | |
339 | u64 time_begin, time_diff; | |
2aa8eab0 DA |
340 | int vcpu; |
341 | ||
342 | if (kvm->trace_vcpu == -1) | |
343 | vcpu = -1; | |
344 | else | |
345 | vcpu = vcpu_record->vcpu_id; | |
bcf6edcd XG |
346 | |
347 | event = vcpu_record->last_event; | |
348 | time_begin = vcpu_record->start_time; | |
349 | ||
350 | /* The begin event is not caught. */ | |
351 | if (!time_begin) | |
352 | return true; | |
353 | ||
354 | /* | |
355 | * In some case, the 'begin event' only records the start timestamp, | |
356 | * the actual event is recognized in the 'end event' (e.g. mmio-event). | |
357 | */ | |
358 | ||
359 | /* Both begin and end events did not get the key. */ | |
360 | if (!event && key->key == INVALID_KEY) | |
361 | return true; | |
362 | ||
363 | if (!event) | |
de332ac4 | 364 | event = find_create_kvm_event(kvm, key); |
bcf6edcd XG |
365 | |
366 | if (!event) | |
367 | return false; | |
368 | ||
369 | vcpu_record->last_event = NULL; | |
370 | vcpu_record->start_time = 0; | |
371 | ||
1afe1d14 | 372 | /* seems to happen once in a while during live mode */ |
70f7b4a7 | 373 | if (sample->time < time_begin) { |
1afe1d14 DA |
374 | pr_debug("End time before begin time; skipping event.\n"); |
375 | return true; | |
376 | } | |
bcf6edcd | 377 | |
70f7b4a7 DA |
378 | time_diff = sample->time - time_begin; |
379 | ||
380 | if (kvm->duration && time_diff > kvm->duration) { | |
162607ea | 381 | char decode[decode_str_len]; |
70f7b4a7 DA |
382 | |
383 | kvm->events_ops->decode_key(kvm, &event->key, decode); | |
54c801ff | 384 | if (!skip_event(decode)) { |
70f7b4a7 DA |
385 | pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n", |
386 | sample->time, sample->pid, vcpu_record->vcpu_id, | |
c05a6e14 | 387 | decode, time_diff / NSEC_PER_USEC); |
70f7b4a7 DA |
388 | } |
389 | } | |
390 | ||
2aa8eab0 | 391 | return update_kvm_event(event, vcpu, time_diff); |
bcf6edcd XG |
392 | } |
393 | ||
14907e73 ACM |
394 | static |
395 | struct vcpu_event_record *per_vcpu_record(struct thread *thread, | |
396 | struct perf_evsel *evsel, | |
397 | struct perf_sample *sample) | |
bcf6edcd XG |
398 | { |
399 | /* Only kvm_entry records vcpu id. */ | |
69e865c3 | 400 | if (!thread__priv(thread) && kvm_entry_event(evsel)) { |
bcf6edcd XG |
401 | struct vcpu_event_record *vcpu_record; |
402 | ||
14907e73 | 403 | vcpu_record = zalloc(sizeof(*vcpu_record)); |
bcf6edcd | 404 | if (!vcpu_record) { |
14907e73 | 405 | pr_err("%s: Not enough memory\n", __func__); |
bcf6edcd XG |
406 | return NULL; |
407 | } | |
408 | ||
162607ea HK |
409 | vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, |
410 | vcpu_id_str); | |
69e865c3 | 411 | thread__set_priv(thread, vcpu_record); |
bcf6edcd XG |
412 | } |
413 | ||
69e865c3 | 414 | return thread__priv(thread); |
bcf6edcd XG |
415 | } |
416 | ||
3786063a | 417 | static bool handle_kvm_event(struct perf_kvm_stat *kvm, |
de332ac4 DA |
418 | struct thread *thread, |
419 | struct perf_evsel *evsel, | |
14907e73 | 420 | struct perf_sample *sample) |
bcf6edcd XG |
421 | { |
422 | struct vcpu_event_record *vcpu_record; | |
3be8e2a0 AY |
423 | struct event_key key = { .key = INVALID_KEY, |
424 | .exit_reasons = kvm->exit_reasons }; | |
bcf6edcd | 425 | |
14907e73 | 426 | vcpu_record = per_vcpu_record(thread, evsel, sample); |
bcf6edcd XG |
427 | if (!vcpu_record) |
428 | return true; | |
429 | ||
2aa8eab0 DA |
430 | /* only process events for vcpus user cares about */ |
431 | if ((kvm->trace_vcpu != -1) && | |
432 | (kvm->trace_vcpu != vcpu_record->vcpu_id)) | |
433 | return true; | |
434 | ||
de332ac4 DA |
435 | if (kvm->events_ops->is_begin_event(evsel, sample, &key)) |
436 | return handle_begin_event(kvm, vcpu_record, &key, sample->time); | |
bcf6edcd | 437 | |
3be8e2a0 AY |
438 | if (is_child_event(kvm, evsel, sample, &key)) |
439 | return handle_child_event(kvm, vcpu_record, &key, sample); | |
440 | ||
de332ac4 | 441 | if (kvm->events_ops->is_end_event(evsel, sample, &key)) |
70f7b4a7 | 442 | return handle_end_event(kvm, vcpu_record, &key, sample); |
bcf6edcd XG |
443 | |
444 | return true; | |
445 | } | |
446 | ||
bcf6edcd XG |
447 | #define GET_EVENT_KEY(func, field) \ |
448 | static u64 get_event_ ##func(struct kvm_event *event, int vcpu) \ | |
449 | { \ | |
450 | if (vcpu == -1) \ | |
451 | return event->total.field; \ | |
452 | \ | |
453 | if (vcpu >= event->max_vcpu) \ | |
454 | return 0; \ | |
455 | \ | |
456 | return event->vcpu[vcpu].field; \ | |
457 | } | |
458 | ||
459 | #define COMPARE_EVENT_KEY(func, field) \ | |
460 | GET_EVENT_KEY(func, field) \ | |
461 | static int compare_kvm_event_ ## func(struct kvm_event *one, \ | |
462 | struct kvm_event *two, int vcpu)\ | |
463 | { \ | |
464 | return get_event_ ##func(one, vcpu) > \ | |
465 | get_event_ ##func(two, vcpu); \ | |
466 | } | |
467 | ||
468 | GET_EVENT_KEY(time, time); | |
469 | COMPARE_EVENT_KEY(count, stats.n); | |
470 | COMPARE_EVENT_KEY(mean, stats.mean); | |
62d04dbf DA |
471 | GET_EVENT_KEY(max, stats.max); |
472 | GET_EVENT_KEY(min, stats.min); | |
bcf6edcd XG |
473 | |
474 | #define DEF_SORT_NAME_KEY(name, compare_key) \ | |
475 | { #name, compare_kvm_event_ ## compare_key } | |
476 | ||
477 | static struct kvm_event_key keys[] = { | |
478 | DEF_SORT_NAME_KEY(sample, count), | |
479 | DEF_SORT_NAME_KEY(time, mean), | |
480 | { NULL, NULL } | |
481 | }; | |
482 | ||
3786063a | 483 | static bool select_key(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
484 | { |
485 | int i; | |
486 | ||
487 | for (i = 0; keys[i].name; i++) { | |
de332ac4 DA |
488 | if (!strcmp(keys[i].name, kvm->sort_key)) { |
489 | kvm->compare = keys[i].key; | |
bcf6edcd XG |
490 | return true; |
491 | } | |
492 | } | |
493 | ||
de332ac4 | 494 | pr_err("Unknown compare key:%s\n", kvm->sort_key); |
bcf6edcd XG |
495 | return false; |
496 | } | |
497 | ||
de332ac4 DA |
498 | static void insert_to_result(struct rb_root *result, struct kvm_event *event, |
499 | key_cmp_fun bigger, int vcpu) | |
bcf6edcd | 500 | { |
de332ac4 | 501 | struct rb_node **rb = &result->rb_node; |
bcf6edcd XG |
502 | struct rb_node *parent = NULL; |
503 | struct kvm_event *p; | |
504 | ||
505 | while (*rb) { | |
506 | p = container_of(*rb, struct kvm_event, rb); | |
507 | parent = *rb; | |
508 | ||
509 | if (bigger(event, p, vcpu)) | |
510 | rb = &(*rb)->rb_left; | |
511 | else | |
512 | rb = &(*rb)->rb_right; | |
513 | } | |
514 | ||
515 | rb_link_node(&event->rb, parent, rb); | |
de332ac4 | 516 | rb_insert_color(&event->rb, result); |
bcf6edcd XG |
517 | } |
518 | ||
3786063a XG |
519 | static void |
520 | update_total_count(struct perf_kvm_stat *kvm, struct kvm_event *event) | |
bcf6edcd | 521 | { |
de332ac4 DA |
522 | int vcpu = kvm->trace_vcpu; |
523 | ||
524 | kvm->total_count += get_event_count(event, vcpu); | |
525 | kvm->total_time += get_event_time(event, vcpu); | |
bcf6edcd XG |
526 | } |
527 | ||
528 | static bool event_is_valid(struct kvm_event *event, int vcpu) | |
529 | { | |
530 | return !!get_event_count(event, vcpu); | |
531 | } | |
532 | ||
3786063a | 533 | static void sort_result(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
534 | { |
535 | unsigned int i; | |
de332ac4 | 536 | int vcpu = kvm->trace_vcpu; |
bcf6edcd XG |
537 | struct kvm_event *event; |
538 | ||
355afe81 DA |
539 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) { |
540 | list_for_each_entry(event, &kvm->kvm_events_cache[i], hash_entry) { | |
bcf6edcd | 541 | if (event_is_valid(event, vcpu)) { |
de332ac4 DA |
542 | update_total_count(kvm, event); |
543 | insert_to_result(&kvm->result, event, | |
544 | kvm->compare, vcpu); | |
bcf6edcd | 545 | } |
355afe81 DA |
546 | } |
547 | } | |
bcf6edcd XG |
548 | } |
549 | ||
550 | /* returns left most element of result, and erase it */ | |
de332ac4 | 551 | static struct kvm_event *pop_from_result(struct rb_root *result) |
bcf6edcd | 552 | { |
de332ac4 | 553 | struct rb_node *node = rb_first(result); |
bcf6edcd XG |
554 | |
555 | if (!node) | |
556 | return NULL; | |
557 | ||
de332ac4 | 558 | rb_erase(node, result); |
bcf6edcd XG |
559 | return container_of(node, struct kvm_event, rb); |
560 | } | |
561 | ||
1afe1d14 | 562 | static void print_vcpu_info(struct perf_kvm_stat *kvm) |
bcf6edcd | 563 | { |
1afe1d14 DA |
564 | int vcpu = kvm->trace_vcpu; |
565 | ||
bcf6edcd XG |
566 | pr_info("Analyze events for "); |
567 | ||
1f3e5b55 AY |
568 | if (kvm->opts.target.system_wide) |
569 | pr_info("all VMs, "); | |
570 | else if (kvm->opts.target.pid) | |
571 | pr_info("pid(s) %s, ", kvm->opts.target.pid); | |
572 | else | |
573 | pr_info("dazed and confused on what is monitored, "); | |
1afe1d14 | 574 | |
bcf6edcd XG |
575 | if (vcpu == -1) |
576 | pr_info("all VCPUs:\n\n"); | |
577 | else | |
578 | pr_info("VCPU %d:\n\n", vcpu); | |
579 | } | |
580 | ||
1afe1d14 DA |
581 | static void show_timeofday(void) |
582 | { | |
583 | char date[64]; | |
584 | struct timeval tv; | |
585 | struct tm ltime; | |
586 | ||
587 | gettimeofday(&tv, NULL); | |
588 | if (localtime_r(&tv.tv_sec, <ime)) { | |
589 | strftime(date, sizeof(date), "%H:%M:%S", <ime); | |
590 | pr_info("%s.%06ld", date, tv.tv_usec); | |
591 | } else | |
592 | pr_info("00:00:00.000000"); | |
593 | ||
594 | return; | |
595 | } | |
596 | ||
3786063a | 597 | static void print_result(struct perf_kvm_stat *kvm) |
bcf6edcd | 598 | { |
162607ea | 599 | char decode[decode_str_len]; |
bcf6edcd | 600 | struct kvm_event *event; |
de332ac4 | 601 | int vcpu = kvm->trace_vcpu; |
bcf6edcd | 602 | |
1afe1d14 DA |
603 | if (kvm->live) { |
604 | puts(CONSOLE_CLEAR); | |
605 | show_timeofday(); | |
606 | } | |
607 | ||
bcf6edcd | 608 | pr_info("\n\n"); |
1afe1d14 | 609 | print_vcpu_info(kvm); |
162607ea | 610 | pr_info("%*s ", decode_str_len, kvm->events_ops->name); |
bcf6edcd XG |
611 | pr_info("%10s ", "Samples"); |
612 | pr_info("%9s ", "Samples%"); | |
613 | ||
614 | pr_info("%9s ", "Time%"); | |
b048a24c CB |
615 | pr_info("%11s ", "Min Time"); |
616 | pr_info("%11s ", "Max Time"); | |
bcf6edcd XG |
617 | pr_info("%16s ", "Avg time"); |
618 | pr_info("\n\n"); | |
619 | ||
de332ac4 | 620 | while ((event = pop_from_result(&kvm->result))) { |
62d04dbf | 621 | u64 ecount, etime, max, min; |
bcf6edcd XG |
622 | |
623 | ecount = get_event_count(event, vcpu); | |
624 | etime = get_event_time(event, vcpu); | |
62d04dbf DA |
625 | max = get_event_max(event, vcpu); |
626 | min = get_event_min(event, vcpu); | |
bcf6edcd | 627 | |
de332ac4 | 628 | kvm->events_ops->decode_key(kvm, &event->key, decode); |
162607ea | 629 | pr_info("%*s ", decode_str_len, decode); |
bcf6edcd | 630 | pr_info("%10llu ", (unsigned long long)ecount); |
de332ac4 DA |
631 | pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); |
632 | pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); | |
c05a6e14 ACM |
633 | pr_info("%9.2fus ", (double)min / NSEC_PER_USEC); |
634 | pr_info("%9.2fus ", (double)max / NSEC_PER_USEC); | |
635 | pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount / NSEC_PER_USEC, | |
bcf6edcd XG |
636 | kvm_event_rel_stddev(vcpu, event)); |
637 | pr_info("\n"); | |
638 | } | |
639 | ||
e4f7637f | 640 | pr_info("\nTotal Samples:%" PRIu64 ", Total events handled time:%.2fus.\n\n", |
c05a6e14 | 641 | kvm->total_count, kvm->total_time / (double)NSEC_PER_USEC); |
1afe1d14 DA |
642 | |
643 | if (kvm->lost_events) | |
644 | pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events); | |
645 | } | |
646 | ||
87419c9a | 647 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
648 | static int process_lost_event(struct perf_tool *tool, |
649 | union perf_event *event __maybe_unused, | |
650 | struct perf_sample *sample __maybe_unused, | |
651 | struct machine *machine __maybe_unused) | |
652 | { | |
653 | struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, tool); | |
654 | ||
655 | kvm->lost_events++; | |
656 | return 0; | |
bcf6edcd | 657 | } |
87419c9a | 658 | #endif |
bcf6edcd | 659 | |
2e73f00f DA |
660 | static bool skip_sample(struct perf_kvm_stat *kvm, |
661 | struct perf_sample *sample) | |
662 | { | |
663 | if (kvm->pid_list && intlist__find(kvm->pid_list, sample->pid) == NULL) | |
664 | return true; | |
665 | ||
666 | return false; | |
667 | } | |
668 | ||
de332ac4 | 669 | static int process_sample_event(struct perf_tool *tool, |
bcf6edcd XG |
670 | union perf_event *event, |
671 | struct perf_sample *sample, | |
672 | struct perf_evsel *evsel, | |
673 | struct machine *machine) | |
674 | { | |
b91fc39f | 675 | int err = 0; |
2e73f00f | 676 | struct thread *thread; |
3786063a XG |
677 | struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, |
678 | tool); | |
bcf6edcd | 679 | |
2e73f00f DA |
680 | if (skip_sample(kvm, sample)) |
681 | return 0; | |
682 | ||
314add6b | 683 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
bcf6edcd XG |
684 | if (thread == NULL) { |
685 | pr_debug("problem processing %d event, skipping it.\n", | |
686 | event->header.type); | |
687 | return -1; | |
688 | } | |
689 | ||
de332ac4 | 690 | if (!handle_kvm_event(kvm, thread, evsel, sample)) |
b91fc39f | 691 | err = -1; |
bcf6edcd | 692 | |
b91fc39f ACM |
693 | thread__put(thread); |
694 | return err; | |
bcf6edcd XG |
695 | } |
696 | ||
1afe1d14 | 697 | static int cpu_isa_config(struct perf_kvm_stat *kvm) |
bcf6edcd | 698 | { |
1afe1d14 | 699 | char buf[64], *cpuid; |
65c647a6 | 700 | int err; |
1afe1d14 DA |
701 | |
702 | if (kvm->live) { | |
703 | err = get_cpuid(buf, sizeof(buf)); | |
704 | if (err != 0) { | |
65c647a6 | 705 | pr_err("Failed to look up CPU type\n"); |
1afe1d14 DA |
706 | return err; |
707 | } | |
708 | cpuid = buf; | |
709 | } else | |
710 | cpuid = kvm->session->header.env.cpuid; | |
bcf6edcd | 711 | |
65c647a6 AY |
712 | if (!cpuid) { |
713 | pr_err("Failed to look up CPU type\n"); | |
714 | return -EINVAL; | |
1afe1d14 DA |
715 | } |
716 | ||
65c647a6 AY |
717 | err = cpu_isa_init(kvm, cpuid); |
718 | if (err == -ENOTSUP) | |
719 | pr_err("CPU %s is not supported.\n", cpuid); | |
1afe1d14 | 720 | |
65c647a6 | 721 | return err; |
1afe1d14 DA |
722 | } |
723 | ||
724 | static bool verify_vcpu(int vcpu) | |
725 | { | |
726 | if (vcpu != -1 && vcpu < 0) { | |
727 | pr_err("Invalid vcpu:%d.\n", vcpu); | |
728 | return false; | |
729 | } | |
730 | ||
731 | return true; | |
732 | } | |
733 | ||
87419c9a | 734 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
735 | /* keeping the max events to a modest level to keep |
736 | * the processing of samples per mmap smooth. | |
737 | */ | |
738 | #define PERF_KVM__MAX_EVENTS_PER_MMAP 25 | |
739 | ||
740 | static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx, | |
741 | u64 *mmap_time) | |
742 | { | |
743 | union perf_event *event; | |
744 | struct perf_sample sample; | |
745 | s64 n = 0; | |
746 | int err; | |
747 | ||
748 | *mmap_time = ULLONG_MAX; | |
749 | while ((event = perf_evlist__mmap_read(kvm->evlist, idx)) != NULL) { | |
750 | err = perf_evlist__parse_sample(kvm->evlist, event, &sample); | |
751 | if (err) { | |
8e50d384 | 752 | perf_evlist__mmap_consume(kvm->evlist, idx); |
1afe1d14 DA |
753 | pr_err("Failed to parse sample\n"); |
754 | return -1; | |
755 | } | |
756 | ||
b7b61cbe | 757 | err = perf_session__queue_event(kvm->session, event, &sample, 0); |
8e50d384 | 758 | /* |
b7b61cbe | 759 | * FIXME: Here we can't consume the event, as perf_session__queue_event will |
8e50d384 ZZ |
760 | * point to it, and it'll get possibly overwritten by the kernel. |
761 | */ | |
762 | perf_evlist__mmap_consume(kvm->evlist, idx); | |
763 | ||
1afe1d14 DA |
764 | if (err) { |
765 | pr_err("Failed to enqueue sample: %d\n", err); | |
766 | return -1; | |
767 | } | |
768 | ||
769 | /* save time stamp of our first sample for this mmap */ | |
770 | if (n == 0) | |
771 | *mmap_time = sample.time; | |
772 | ||
773 | /* limit events per mmap handled all at once */ | |
774 | n++; | |
775 | if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) | |
776 | break; | |
777 | } | |
778 | ||
779 | return n; | |
780 | } | |
781 | ||
782 | static int perf_kvm__mmap_read(struct perf_kvm_stat *kvm) | |
783 | { | |
784 | int i, err, throttled = 0; | |
785 | s64 n, ntotal = 0; | |
786 | u64 flush_time = ULLONG_MAX, mmap_time; | |
787 | ||
788 | for (i = 0; i < kvm->evlist->nr_mmaps; i++) { | |
789 | n = perf_kvm__mmap_read_idx(kvm, i, &mmap_time); | |
790 | if (n < 0) | |
791 | return -1; | |
792 | ||
793 | /* flush time is going to be the minimum of all the individual | |
794 | * mmap times. Essentially, we flush all the samples queued up | |
795 | * from the last pass under our minimal start time -- that leaves | |
796 | * a very small race for samples to come in with a lower timestamp. | |
797 | * The ioctl to return the perf_clock timestamp should close the | |
798 | * race entirely. | |
799 | */ | |
800 | if (mmap_time < flush_time) | |
801 | flush_time = mmap_time; | |
802 | ||
803 | ntotal += n; | |
804 | if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) | |
805 | throttled = 1; | |
806 | } | |
807 | ||
808 | /* flush queue after each round in which we processed events */ | |
809 | if (ntotal) { | |
d704ebda ACM |
810 | struct ordered_events *oe = &kvm->session->ordered_events; |
811 | ||
812 | oe->next_flush = flush_time; | |
813 | err = ordered_events__flush(oe, OE_FLUSH__ROUND); | |
1afe1d14 DA |
814 | if (err) { |
815 | if (kvm->lost_events) | |
816 | pr_info("\nLost events: %" PRIu64 "\n\n", | |
817 | kvm->lost_events); | |
818 | return err; | |
819 | } | |
820 | } | |
821 | ||
822 | return throttled; | |
823 | } | |
824 | ||
825 | static volatile int done; | |
826 | ||
827 | static void sig_handler(int sig __maybe_unused) | |
828 | { | |
829 | done = 1; | |
830 | } | |
831 | ||
832 | static int perf_kvm__timerfd_create(struct perf_kvm_stat *kvm) | |
833 | { | |
834 | struct itimerspec new_value; | |
835 | int rc = -1; | |
836 | ||
837 | kvm->timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK); | |
838 | if (kvm->timerfd < 0) { | |
839 | pr_err("timerfd_create failed\n"); | |
840 | goto out; | |
841 | } | |
842 | ||
843 | new_value.it_value.tv_sec = kvm->display_time; | |
844 | new_value.it_value.tv_nsec = 0; | |
845 | new_value.it_interval.tv_sec = kvm->display_time; | |
846 | new_value.it_interval.tv_nsec = 0; | |
847 | ||
848 | if (timerfd_settime(kvm->timerfd, 0, &new_value, NULL) != 0) { | |
849 | pr_err("timerfd_settime failed: %d\n", errno); | |
850 | close(kvm->timerfd); | |
851 | goto out; | |
852 | } | |
853 | ||
854 | rc = 0; | |
855 | out: | |
856 | return rc; | |
857 | } | |
858 | ||
859 | static int perf_kvm__handle_timerfd(struct perf_kvm_stat *kvm) | |
860 | { | |
861 | uint64_t c; | |
862 | int rc; | |
863 | ||
864 | rc = read(kvm->timerfd, &c, sizeof(uint64_t)); | |
865 | if (rc < 0) { | |
866 | if (errno == EAGAIN) | |
867 | return 0; | |
868 | ||
869 | pr_err("Failed to read timer fd: %d\n", errno); | |
870 | return -1; | |
871 | } | |
872 | ||
873 | if (rc != sizeof(uint64_t)) { | |
874 | pr_err("Error reading timer fd - invalid size returned\n"); | |
875 | return -1; | |
876 | } | |
877 | ||
878 | if (c != 1) | |
879 | pr_debug("Missed timer beats: %" PRIu64 "\n", c-1); | |
880 | ||
881 | /* update display */ | |
882 | sort_result(kvm); | |
883 | print_result(kvm); | |
884 | ||
885 | /* reset counts */ | |
886 | clear_events_cache_stats(kvm->kvm_events_cache); | |
887 | kvm->total_count = 0; | |
888 | kvm->total_time = 0; | |
889 | kvm->lost_events = 0; | |
890 | ||
891 | return 0; | |
892 | } | |
893 | ||
894 | static int fd_set_nonblock(int fd) | |
895 | { | |
896 | long arg = 0; | |
897 | ||
898 | arg = fcntl(fd, F_GETFL); | |
899 | if (arg < 0) { | |
900 | pr_err("Failed to get current flags for fd %d\n", fd); | |
901 | return -1; | |
902 | } | |
903 | ||
904 | if (fcntl(fd, F_SETFL, arg | O_NONBLOCK) < 0) { | |
905 | pr_err("Failed to set non-block option on fd %d\n", fd); | |
906 | return -1; | |
907 | } | |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
d5b4130a | 912 | static int perf_kvm__handle_stdin(void) |
1afe1d14 DA |
913 | { |
914 | int c; | |
915 | ||
1afe1d14 | 916 | c = getc(stdin); |
1afe1d14 DA |
917 | if (c == 'q') |
918 | return 1; | |
919 | ||
920 | return 0; | |
921 | } | |
922 | ||
923 | static int kvm_events_live_report(struct perf_kvm_stat *kvm) | |
924 | { | |
1ca72260 | 925 | int nr_stdin, ret, err = -EINVAL; |
d5b4130a | 926 | struct termios save; |
1afe1d14 DA |
927 | |
928 | /* live flag must be set first */ | |
929 | kvm->live = true; | |
930 | ||
931 | ret = cpu_isa_config(kvm); | |
932 | if (ret < 0) | |
933 | return ret; | |
934 | ||
935 | if (!verify_vcpu(kvm->trace_vcpu) || | |
936 | !select_key(kvm) || | |
937 | !register_kvm_events_ops(kvm)) { | |
938 | goto out; | |
939 | } | |
940 | ||
d5b4130a | 941 | set_term_quiet_input(&save); |
1afe1d14 DA |
942 | init_kvm_event_record(kvm); |
943 | ||
1afe1d14 DA |
944 | signal(SIGINT, sig_handler); |
945 | signal(SIGTERM, sig_handler); | |
946 | ||
1afe1d14 DA |
947 | /* add timer fd */ |
948 | if (perf_kvm__timerfd_create(kvm) < 0) { | |
949 | err = -1; | |
950 | goto out; | |
951 | } | |
952 | ||
fe636add | 953 | if (perf_evlist__add_pollfd(kvm->evlist, kvm->timerfd) < 0) |
0a04c9e0 ACM |
954 | goto out; |
955 | ||
0cae013c JO |
956 | nr_stdin = perf_evlist__add_pollfd(kvm->evlist, fileno(stdin)); |
957 | if (nr_stdin < 0) | |
0a04c9e0 ACM |
958 | goto out; |
959 | ||
1afe1d14 DA |
960 | if (fd_set_nonblock(fileno(stdin)) != 0) |
961 | goto out; | |
962 | ||
963 | /* everything is good - enable the events and process */ | |
964 | perf_evlist__enable(kvm->evlist); | |
965 | ||
966 | while (!done) { | |
1ca72260 | 967 | struct fdarray *fda = &kvm->evlist->pollfd; |
1afe1d14 DA |
968 | int rc; |
969 | ||
970 | rc = perf_kvm__mmap_read(kvm); | |
971 | if (rc < 0) | |
972 | break; | |
973 | ||
974 | err = perf_kvm__handle_timerfd(kvm); | |
975 | if (err) | |
976 | goto out; | |
977 | ||
1ca72260 | 978 | if (fda->entries[nr_stdin].revents & POLLIN) |
d5b4130a | 979 | done = perf_kvm__handle_stdin(); |
1afe1d14 DA |
980 | |
981 | if (!rc && !done) | |
1ca72260 | 982 | err = fdarray__poll(fda, 100); |
1afe1d14 DA |
983 | } |
984 | ||
985 | perf_evlist__disable(kvm->evlist); | |
986 | ||
987 | if (err == 0) { | |
988 | sort_result(kvm); | |
989 | print_result(kvm); | |
990 | } | |
991 | ||
992 | out: | |
993 | if (kvm->timerfd >= 0) | |
994 | close(kvm->timerfd); | |
995 | ||
d5b4130a | 996 | tcsetattr(0, TCSAFLUSH, &save); |
1afe1d14 DA |
997 | return err; |
998 | } | |
999 | ||
1000 | static int kvm_live_open_events(struct perf_kvm_stat *kvm) | |
1001 | { | |
1002 | int err, rc = -1; | |
1003 | struct perf_evsel *pos; | |
1004 | struct perf_evlist *evlist = kvm->evlist; | |
f9f33fdb | 1005 | char sbuf[STRERR_BUFSIZE]; |
1afe1d14 | 1006 | |
e68ae9cf | 1007 | perf_evlist__config(evlist, &kvm->opts, NULL); |
1afe1d14 DA |
1008 | |
1009 | /* | |
1010 | * Note: exclude_{guest,host} do not apply here. | |
1011 | * This command processes KVM tracepoints from host only | |
1012 | */ | |
e5cadb93 | 1013 | evlist__for_each_entry(evlist, pos) { |
1afe1d14 DA |
1014 | struct perf_event_attr *attr = &pos->attr; |
1015 | ||
1016 | /* make sure these *are* set */ | |
e71aa283 AH |
1017 | perf_evsel__set_sample_bit(pos, TID); |
1018 | perf_evsel__set_sample_bit(pos, TIME); | |
1019 | perf_evsel__set_sample_bit(pos, CPU); | |
1020 | perf_evsel__set_sample_bit(pos, RAW); | |
1afe1d14 | 1021 | /* make sure these are *not*; want as small a sample as possible */ |
e71aa283 AH |
1022 | perf_evsel__reset_sample_bit(pos, PERIOD); |
1023 | perf_evsel__reset_sample_bit(pos, IP); | |
1024 | perf_evsel__reset_sample_bit(pos, CALLCHAIN); | |
1025 | perf_evsel__reset_sample_bit(pos, ADDR); | |
1026 | perf_evsel__reset_sample_bit(pos, READ); | |
1afe1d14 DA |
1027 | attr->mmap = 0; |
1028 | attr->comm = 0; | |
1029 | attr->task = 0; | |
1030 | ||
1031 | attr->sample_period = 1; | |
1032 | ||
1033 | attr->watermark = 0; | |
1034 | attr->wakeup_events = 1000; | |
1035 | ||
1036 | /* will enable all once we are ready */ | |
1037 | attr->disabled = 1; | |
1038 | } | |
1039 | ||
1040 | err = perf_evlist__open(evlist); | |
1041 | if (err < 0) { | |
f9f33fdb | 1042 | printf("Couldn't create the events: %s\n", |
c8b5f2c9 | 1043 | str_error_r(errno, sbuf, sizeof(sbuf))); |
1afe1d14 | 1044 | goto out; |
bcf6edcd XG |
1045 | } |
1046 | ||
1afe1d14 | 1047 | if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages, false) < 0) { |
f9f33fdb | 1048 | ui__error("Failed to mmap the events: %s\n", |
c8b5f2c9 | 1049 | str_error_r(errno, sbuf, sizeof(sbuf))); |
1afe1d14 DA |
1050 | perf_evlist__close(evlist); |
1051 | goto out; | |
1052 | } | |
1053 | ||
1054 | rc = 0; | |
1055 | ||
1056 | out: | |
1057 | return rc; | |
bcf6edcd | 1058 | } |
87419c9a | 1059 | #endif |
bcf6edcd | 1060 | |
3786063a | 1061 | static int read_events(struct perf_kvm_stat *kvm) |
bcf6edcd | 1062 | { |
bcf6edcd XG |
1063 | int ret; |
1064 | ||
de332ac4 DA |
1065 | struct perf_tool eops = { |
1066 | .sample = process_sample_event, | |
1067 | .comm = perf_event__process_comm, | |
f3b3614a | 1068 | .namespaces = perf_event__process_namespaces, |
0a8cb85c | 1069 | .ordered_events = true, |
de332ac4 | 1070 | }; |
f5fc1412 | 1071 | struct perf_data_file file = { |
476b3a86 | 1072 | .path = kvm->file_name, |
f5fc1412 | 1073 | .mode = PERF_DATA_MODE_READ, |
8cc5ec1f | 1074 | .force = kvm->force, |
f5fc1412 | 1075 | }; |
de332ac4 DA |
1076 | |
1077 | kvm->tool = eops; | |
f5fc1412 | 1078 | kvm->session = perf_session__new(&file, false, &kvm->tool); |
de332ac4 | 1079 | if (!kvm->session) { |
bcf6edcd | 1080 | pr_err("Initializing perf session failed\n"); |
52e02834 | 1081 | return -1; |
bcf6edcd XG |
1082 | } |
1083 | ||
0a7e6d1b | 1084 | symbol__init(&kvm->session->header.env); |
14d37f38 | 1085 | |
41b98360 TS |
1086 | if (!perf_session__has_traces(kvm->session, "kvm record")) { |
1087 | ret = -EINVAL; | |
1088 | goto out_delete; | |
1089 | } | |
bcf6edcd XG |
1090 | |
1091 | /* | |
1092 | * Do not use 'isa' recorded in kvm_exit tracepoint since it is not | |
1093 | * traced in the old kernel. | |
1094 | */ | |
1afe1d14 | 1095 | ret = cpu_isa_config(kvm); |
bcf6edcd | 1096 | if (ret < 0) |
41b98360 TS |
1097 | goto out_delete; |
1098 | ||
1099 | ret = perf_session__process_events(kvm->session); | |
bcf6edcd | 1100 | |
41b98360 TS |
1101 | out_delete: |
1102 | perf_session__delete(kvm->session); | |
1103 | return ret; | |
bcf6edcd XG |
1104 | } |
1105 | ||
2e73f00f DA |
1106 | static int parse_target_str(struct perf_kvm_stat *kvm) |
1107 | { | |
3ae4a76a AY |
1108 | if (kvm->opts.target.pid) { |
1109 | kvm->pid_list = intlist__new(kvm->opts.target.pid); | |
2e73f00f DA |
1110 | if (kvm->pid_list == NULL) { |
1111 | pr_err("Error parsing process id string\n"); | |
1112 | return -EINVAL; | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | return 0; | |
1117 | } | |
1118 | ||
3786063a | 1119 | static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
1120 | { |
1121 | int ret = -EINVAL; | |
de332ac4 | 1122 | int vcpu = kvm->trace_vcpu; |
bcf6edcd | 1123 | |
2e73f00f DA |
1124 | if (parse_target_str(kvm) != 0) |
1125 | goto exit; | |
1126 | ||
bcf6edcd XG |
1127 | if (!verify_vcpu(vcpu)) |
1128 | goto exit; | |
1129 | ||
de332ac4 | 1130 | if (!select_key(kvm)) |
bcf6edcd XG |
1131 | goto exit; |
1132 | ||
de332ac4 | 1133 | if (!register_kvm_events_ops(kvm)) |
bcf6edcd XG |
1134 | goto exit; |
1135 | ||
de332ac4 | 1136 | init_kvm_event_record(kvm); |
bcf6edcd XG |
1137 | setup_pager(); |
1138 | ||
de332ac4 | 1139 | ret = read_events(kvm); |
bcf6edcd XG |
1140 | if (ret) |
1141 | goto exit; | |
1142 | ||
de332ac4 DA |
1143 | sort_result(kvm); |
1144 | print_result(kvm); | |
1145 | ||
bcf6edcd XG |
1146 | exit: |
1147 | return ret; | |
1148 | } | |
1149 | ||
bcf6edcd XG |
1150 | #define STRDUP_FAIL_EXIT(s) \ |
1151 | ({ char *_p; \ | |
1152 | _p = strdup(s); \ | |
1153 | if (!_p) \ | |
1154 | return -ENOMEM; \ | |
1155 | _p; \ | |
1156 | }) | |
1157 | ||
066d3593 HK |
1158 | int __weak setup_kvm_events_tp(struct perf_kvm_stat *kvm __maybe_unused) |
1159 | { | |
1160 | return 0; | |
1161 | } | |
1162 | ||
3786063a XG |
1163 | static int |
1164 | kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) | |
bcf6edcd | 1165 | { |
9daa8123 | 1166 | unsigned int rec_argc, i, j, events_tp_size; |
bcf6edcd | 1167 | const char **rec_argv; |
8fdd84c4 DA |
1168 | const char * const record_args[] = { |
1169 | "record", | |
1170 | "-R", | |
8fdd84c4 DA |
1171 | "-m", "1024", |
1172 | "-c", "1", | |
1173 | }; | |
f45d20ff NK |
1174 | const char * const kvm_stat_record_usage[] = { |
1175 | "perf kvm stat record [<options>]", | |
1176 | NULL | |
1177 | }; | |
9daa8123 | 1178 | const char * const *events_tp; |
066d3593 HK |
1179 | int ret; |
1180 | ||
9daa8123 | 1181 | events_tp_size = 0; |
066d3593 HK |
1182 | ret = setup_kvm_events_tp(kvm); |
1183 | if (ret < 0) { | |
1184 | pr_err("Unable to setup the kvm tracepoints\n"); | |
1185 | return ret; | |
1186 | } | |
9daa8123 AY |
1187 | |
1188 | for (events_tp = kvm_events_tp; *events_tp; events_tp++) | |
1189 | events_tp_size++; | |
bcf6edcd | 1190 | |
8fdd84c4 | 1191 | rec_argc = ARRAY_SIZE(record_args) + argc + 2 + |
9daa8123 | 1192 | 2 * events_tp_size; |
bcf6edcd XG |
1193 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1194 | ||
1195 | if (rec_argv == NULL) | |
1196 | return -ENOMEM; | |
1197 | ||
1198 | for (i = 0; i < ARRAY_SIZE(record_args); i++) | |
1199 | rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]); | |
1200 | ||
9daa8123 | 1201 | for (j = 0; j < events_tp_size; j++) { |
8fdd84c4 DA |
1202 | rec_argv[i++] = "-e"; |
1203 | rec_argv[i++] = STRDUP_FAIL_EXIT(kvm_events_tp[j]); | |
1204 | } | |
1205 | ||
bcf6edcd | 1206 | rec_argv[i++] = STRDUP_FAIL_EXIT("-o"); |
de332ac4 | 1207 | rec_argv[i++] = STRDUP_FAIL_EXIT(kvm->file_name); |
bcf6edcd XG |
1208 | |
1209 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1210 | rec_argv[i] = argv[j]; | |
1211 | ||
f45d20ff NK |
1212 | set_option_flag(record_options, 'e', "event", PARSE_OPT_HIDDEN); |
1213 | set_option_flag(record_options, 0, "filter", PARSE_OPT_HIDDEN); | |
1214 | set_option_flag(record_options, 'R', "raw-samples", PARSE_OPT_HIDDEN); | |
1215 | ||
1216 | set_option_flag(record_options, 'F', "freq", PARSE_OPT_DISABLED); | |
1217 | set_option_flag(record_options, 0, "group", PARSE_OPT_DISABLED); | |
1218 | set_option_flag(record_options, 'g', NULL, PARSE_OPT_DISABLED); | |
1219 | set_option_flag(record_options, 0, "call-graph", PARSE_OPT_DISABLED); | |
1220 | set_option_flag(record_options, 'd', "data", PARSE_OPT_DISABLED); | |
1221 | set_option_flag(record_options, 'T', "timestamp", PARSE_OPT_DISABLED); | |
1222 | set_option_flag(record_options, 'P', "period", PARSE_OPT_DISABLED); | |
1223 | set_option_flag(record_options, 'n', "no-samples", PARSE_OPT_DISABLED); | |
1224 | set_option_flag(record_options, 'N', "no-buildid-cache", PARSE_OPT_DISABLED); | |
1225 | set_option_flag(record_options, 'B', "no-buildid", PARSE_OPT_DISABLED); | |
1226 | set_option_flag(record_options, 'G', "cgroup", PARSE_OPT_DISABLED); | |
1227 | set_option_flag(record_options, 'b', "branch-any", PARSE_OPT_DISABLED); | |
1228 | set_option_flag(record_options, 'j', "branch-filter", PARSE_OPT_DISABLED); | |
1229 | set_option_flag(record_options, 'W', "weight", PARSE_OPT_DISABLED); | |
1230 | set_option_flag(record_options, 0, "transaction", PARSE_OPT_DISABLED); | |
1231 | ||
1232 | record_usage = kvm_stat_record_usage; | |
b0ad8ea6 | 1233 | return cmd_record(i, rec_argv); |
bcf6edcd XG |
1234 | } |
1235 | ||
3786063a XG |
1236 | static int |
1237 | kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) | |
de332ac4 DA |
1238 | { |
1239 | const struct option kvm_events_report_options[] = { | |
1240 | OPT_STRING(0, "event", &kvm->report_event, "report event", | |
3be8e2a0 AY |
1241 | "event for reporting: vmexit, " |
1242 | "mmio (x86 only), ioport (x86 only)"), | |
de332ac4 DA |
1243 | OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, |
1244 | "vcpu id to report"), | |
1245 | OPT_STRING('k', "key", &kvm->sort_key, "sort-key", | |
1246 | "key for sorting: sample(sort by samples number)" | |
1247 | " time (sort by avg time)"), | |
3ae4a76a | 1248 | OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid", |
2e73f00f | 1249 | "analyze events only for given process id(s)"), |
8cc5ec1f | 1250 | OPT_BOOLEAN('f', "force", &kvm->force, "don't complain, do it"), |
de332ac4 DA |
1251 | OPT_END() |
1252 | }; | |
bcf6edcd | 1253 | |
de332ac4 DA |
1254 | const char * const kvm_events_report_usage[] = { |
1255 | "perf kvm stat report [<options>]", | |
1256 | NULL | |
1257 | }; | |
bcf6edcd | 1258 | |
bcf6edcd XG |
1259 | if (argc) { |
1260 | argc = parse_options(argc, argv, | |
1261 | kvm_events_report_options, | |
1262 | kvm_events_report_usage, 0); | |
1263 | if (argc) | |
1264 | usage_with_options(kvm_events_report_usage, | |
1265 | kvm_events_report_options); | |
1266 | } | |
1267 | ||
f181957c AY |
1268 | if (!kvm->opts.target.pid) |
1269 | kvm->opts.target.system_wide = true; | |
1270 | ||
de332ac4 | 1271 | return kvm_events_report_vcpu(kvm); |
bcf6edcd XG |
1272 | } |
1273 | ||
87419c9a | 1274 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
1275 | static struct perf_evlist *kvm_live_event_list(void) |
1276 | { | |
1277 | struct perf_evlist *evlist; | |
1278 | char *tp, *name, *sys; | |
1afe1d14 | 1279 | int err = -1; |
9daa8123 | 1280 | const char * const *events_tp; |
1afe1d14 DA |
1281 | |
1282 | evlist = perf_evlist__new(); | |
1283 | if (evlist == NULL) | |
1284 | return NULL; | |
1285 | ||
9daa8123 | 1286 | for (events_tp = kvm_events_tp; *events_tp; events_tp++) { |
1afe1d14 | 1287 | |
9daa8123 | 1288 | tp = strdup(*events_tp); |
1afe1d14 DA |
1289 | if (tp == NULL) |
1290 | goto out; | |
1291 | ||
1292 | /* split tracepoint into subsystem and name */ | |
1293 | sys = tp; | |
1294 | name = strchr(tp, ':'); | |
1295 | if (name == NULL) { | |
1296 | pr_err("Error parsing %s tracepoint: subsystem delimiter not found\n", | |
9daa8123 | 1297 | *events_tp); |
1afe1d14 DA |
1298 | free(tp); |
1299 | goto out; | |
1300 | } | |
1301 | *name = '\0'; | |
1302 | name++; | |
1303 | ||
1304 | if (perf_evlist__add_newtp(evlist, sys, name, NULL)) { | |
9daa8123 | 1305 | pr_err("Failed to add %s tracepoint to the list\n", *events_tp); |
1afe1d14 DA |
1306 | free(tp); |
1307 | goto out; | |
1308 | } | |
1309 | ||
1310 | free(tp); | |
1311 | } | |
1312 | ||
1313 | err = 0; | |
1314 | ||
1315 | out: | |
1316 | if (err) { | |
1317 | perf_evlist__delete(evlist); | |
1318 | evlist = NULL; | |
1319 | } | |
1320 | ||
1321 | return evlist; | |
1322 | } | |
1323 | ||
1324 | static int kvm_events_live(struct perf_kvm_stat *kvm, | |
1325 | int argc, const char **argv) | |
1326 | { | |
1327 | char errbuf[BUFSIZ]; | |
1328 | int err; | |
1329 | ||
1330 | const struct option live_options[] = { | |
1331 | OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid", | |
1332 | "record events on existing process id"), | |
994a1f78 JO |
1333 | OPT_CALLBACK('m', "mmap-pages", &kvm->opts.mmap_pages, "pages", |
1334 | "number of mmap data pages", | |
1335 | perf_evlist__parse_mmap_pages), | |
1afe1d14 DA |
1336 | OPT_INCR('v', "verbose", &verbose, |
1337 | "be more verbose (show counter open errors, etc)"), | |
1338 | OPT_BOOLEAN('a', "all-cpus", &kvm->opts.target.system_wide, | |
1339 | "system-wide collection from all CPUs"), | |
1340 | OPT_UINTEGER('d', "display", &kvm->display_time, | |
1341 | "time in seconds between display updates"), | |
1342 | OPT_STRING(0, "event", &kvm->report_event, "report event", | |
99d348a8 AY |
1343 | "event for reporting: " |
1344 | "vmexit, mmio (x86 only), ioport (x86 only)"), | |
1afe1d14 DA |
1345 | OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, |
1346 | "vcpu id to report"), | |
1347 | OPT_STRING('k', "key", &kvm->sort_key, "sort-key", | |
1348 | "key for sorting: sample(sort by samples number)" | |
1349 | " time (sort by avg time)"), | |
70f7b4a7 | 1350 | OPT_U64(0, "duration", &kvm->duration, |
3be8e2a0 AY |
1351 | "show events other than" |
1352 | " HLT (x86 only) or Wait state (s390 only)" | |
1353 | " that take longer than duration usecs"), | |
9d9cad76 KL |
1354 | OPT_UINTEGER(0, "proc-map-timeout", &kvm->opts.proc_map_timeout, |
1355 | "per thread proc mmap processing timeout in ms"), | |
1afe1d14 DA |
1356 | OPT_END() |
1357 | }; | |
1358 | const char * const live_usage[] = { | |
1359 | "perf kvm stat live [<options>]", | |
1360 | NULL | |
1361 | }; | |
f5fc1412 JO |
1362 | struct perf_data_file file = { |
1363 | .mode = PERF_DATA_MODE_WRITE, | |
1364 | }; | |
1afe1d14 DA |
1365 | |
1366 | ||
1367 | /* event handling */ | |
1368 | kvm->tool.sample = process_sample_event; | |
1369 | kvm->tool.comm = perf_event__process_comm; | |
1370 | kvm->tool.exit = perf_event__process_exit; | |
1371 | kvm->tool.fork = perf_event__process_fork; | |
1372 | kvm->tool.lost = process_lost_event; | |
f3b3614a | 1373 | kvm->tool.namespaces = perf_event__process_namespaces; |
0a8cb85c | 1374 | kvm->tool.ordered_events = true; |
1afe1d14 DA |
1375 | perf_tool__fill_defaults(&kvm->tool); |
1376 | ||
1377 | /* set defaults */ | |
1378 | kvm->display_time = 1; | |
1379 | kvm->opts.user_interval = 1; | |
1380 | kvm->opts.mmap_pages = 512; | |
1381 | kvm->opts.target.uses_mmap = false; | |
1382 | kvm->opts.target.uid_str = NULL; | |
1383 | kvm->opts.target.uid = UINT_MAX; | |
9d9cad76 | 1384 | kvm->opts.proc_map_timeout = 500; |
1afe1d14 | 1385 | |
0a7e6d1b | 1386 | symbol__init(NULL); |
1afe1d14 DA |
1387 | disable_buildid_cache(); |
1388 | ||
1389 | use_browser = 0; | |
1afe1d14 DA |
1390 | |
1391 | if (argc) { | |
1392 | argc = parse_options(argc, argv, live_options, | |
1393 | live_usage, 0); | |
1394 | if (argc) | |
1395 | usage_with_options(live_usage, live_options); | |
1396 | } | |
1397 | ||
70f7b4a7 DA |
1398 | kvm->duration *= NSEC_PER_USEC; /* convert usec to nsec */ |
1399 | ||
1afe1d14 DA |
1400 | /* |
1401 | * target related setups | |
1402 | */ | |
602ad878 | 1403 | err = target__validate(&kvm->opts.target); |
1afe1d14 | 1404 | if (err) { |
602ad878 | 1405 | target__strerror(&kvm->opts.target, err, errbuf, BUFSIZ); |
1afe1d14 DA |
1406 | ui__warning("%s", errbuf); |
1407 | } | |
1408 | ||
602ad878 | 1409 | if (target__none(&kvm->opts.target)) |
1afe1d14 DA |
1410 | kvm->opts.target.system_wide = true; |
1411 | ||
1412 | ||
1413 | /* | |
1414 | * generate the event list | |
1415 | */ | |
066d3593 HK |
1416 | err = setup_kvm_events_tp(kvm); |
1417 | if (err < 0) { | |
1418 | pr_err("Unable to setup the kvm tracepoints\n"); | |
1419 | return err; | |
1420 | } | |
1421 | ||
1afe1d14 DA |
1422 | kvm->evlist = kvm_live_event_list(); |
1423 | if (kvm->evlist == NULL) { | |
1424 | err = -1; | |
1425 | goto out; | |
1426 | } | |
1427 | ||
1428 | symbol_conf.nr_events = kvm->evlist->nr_entries; | |
1429 | ||
1430 | if (perf_evlist__create_maps(kvm->evlist, &kvm->opts.target) < 0) | |
1431 | usage_with_options(live_usage, live_options); | |
1432 | ||
1433 | /* | |
1434 | * perf session | |
1435 | */ | |
f5fc1412 | 1436 | kvm->session = perf_session__new(&file, false, &kvm->tool); |
1afe1d14 | 1437 | if (kvm->session == NULL) { |
52e02834 | 1438 | err = -1; |
1afe1d14 DA |
1439 | goto out; |
1440 | } | |
1441 | kvm->session->evlist = kvm->evlist; | |
1442 | perf_session__set_id_hdr_size(kvm->session); | |
673d659f | 1443 | ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true); |
a33fbd56 | 1444 | machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target, |
9d9cad76 | 1445 | kvm->evlist->threads, false, kvm->opts.proc_map_timeout); |
1afe1d14 DA |
1446 | err = kvm_live_open_events(kvm); |
1447 | if (err) | |
1448 | goto out; | |
1449 | ||
1450 | err = kvm_events_live_report(kvm); | |
1451 | ||
1452 | out: | |
e1446551 | 1453 | perf_session__delete(kvm->session); |
1afe1d14 | 1454 | kvm->session = NULL; |
0b04b3dc | 1455 | perf_evlist__delete(kvm->evlist); |
1afe1d14 DA |
1456 | |
1457 | return err; | |
1458 | } | |
87419c9a | 1459 | #endif |
1afe1d14 | 1460 | |
bcf6edcd XG |
1461 | static void print_kvm_stat_usage(void) |
1462 | { | |
1463 | printf("Usage: perf kvm stat <command>\n\n"); | |
1464 | ||
1465 | printf("# Available commands:\n"); | |
1466 | printf("\trecord: record kvm events\n"); | |
1467 | printf("\treport: report statistical data of kvm events\n"); | |
1afe1d14 | 1468 | printf("\tlive: live reporting of statistical data of kvm events\n"); |
bcf6edcd XG |
1469 | |
1470 | printf("\nOtherwise, it is the alias of 'perf stat':\n"); | |
1471 | } | |
1472 | ||
3786063a | 1473 | static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) |
bcf6edcd | 1474 | { |
3786063a XG |
1475 | struct perf_kvm_stat kvm = { |
1476 | .file_name = file_name, | |
1477 | ||
1478 | .trace_vcpu = -1, | |
1479 | .report_event = "vmexit", | |
1480 | .sort_key = "sample", | |
1481 | ||
3786063a XG |
1482 | }; |
1483 | ||
bcf6edcd XG |
1484 | if (argc == 1) { |
1485 | print_kvm_stat_usage(); | |
1486 | goto perf_stat; | |
1487 | } | |
1488 | ||
1489 | if (!strncmp(argv[1], "rec", 3)) | |
3786063a | 1490 | return kvm_events_record(&kvm, argc - 1, argv + 1); |
bcf6edcd XG |
1491 | |
1492 | if (!strncmp(argv[1], "rep", 3)) | |
3786063a | 1493 | return kvm_events_report(&kvm, argc - 1 , argv + 1); |
bcf6edcd | 1494 | |
87419c9a | 1495 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
1496 | if (!strncmp(argv[1], "live", 4)) |
1497 | return kvm_events_live(&kvm, argc - 1 , argv + 1); | |
87419c9a | 1498 | #endif |
1afe1d14 | 1499 | |
bcf6edcd | 1500 | perf_stat: |
b0ad8ea6 | 1501 | return cmd_stat(argc, argv); |
bcf6edcd | 1502 | } |
da50ad69 | 1503 | #endif /* HAVE_KVM_STAT_SUPPORT */ |
bcf6edcd | 1504 | |
3786063a | 1505 | static int __cmd_record(const char *file_name, int argc, const char **argv) |
a1645ce1 ZY |
1506 | { |
1507 | int rec_argc, i = 0, j; | |
1508 | const char **rec_argv; | |
1509 | ||
1510 | rec_argc = argc + 2; | |
1511 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1512 | rec_argv[i++] = strdup("record"); | |
1513 | rec_argv[i++] = strdup("-o"); | |
3786063a | 1514 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1515 | for (j = 1; j < argc; j++, i++) |
1516 | rec_argv[i] = argv[j]; | |
1517 | ||
1518 | BUG_ON(i != rec_argc); | |
1519 | ||
b0ad8ea6 | 1520 | return cmd_record(i, rec_argv); |
a1645ce1 ZY |
1521 | } |
1522 | ||
3786063a | 1523 | static int __cmd_report(const char *file_name, int argc, const char **argv) |
a1645ce1 ZY |
1524 | { |
1525 | int rec_argc, i = 0, j; | |
1526 | const char **rec_argv; | |
1527 | ||
1528 | rec_argc = argc + 2; | |
1529 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1530 | rec_argv[i++] = strdup("report"); | |
1531 | rec_argv[i++] = strdup("-i"); | |
3786063a | 1532 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1533 | for (j = 1; j < argc; j++, i++) |
1534 | rec_argv[i] = argv[j]; | |
1535 | ||
1536 | BUG_ON(i != rec_argc); | |
1537 | ||
b0ad8ea6 | 1538 | return cmd_report(i, rec_argv); |
a1645ce1 ZY |
1539 | } |
1540 | ||
3786063a XG |
1541 | static int |
1542 | __cmd_buildid_list(const char *file_name, int argc, const char **argv) | |
a1645ce1 ZY |
1543 | { |
1544 | int rec_argc, i = 0, j; | |
1545 | const char **rec_argv; | |
1546 | ||
1547 | rec_argc = argc + 2; | |
1548 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1549 | rec_argv[i++] = strdup("buildid-list"); | |
1550 | rec_argv[i++] = strdup("-i"); | |
3786063a | 1551 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1552 | for (j = 1; j < argc; j++, i++) |
1553 | rec_argv[i] = argv[j]; | |
1554 | ||
1555 | BUG_ON(i != rec_argc); | |
1556 | ||
b0ad8ea6 | 1557 | return cmd_buildid_list(i, rec_argv); |
a1645ce1 ZY |
1558 | } |
1559 | ||
b0ad8ea6 | 1560 | int cmd_kvm(int argc, const char **argv) |
a1645ce1 | 1561 | { |
20914ce5 | 1562 | const char *file_name = NULL; |
de332ac4 | 1563 | const struct option kvm_options[] = { |
3786063a | 1564 | OPT_STRING('i', "input", &file_name, "file", |
de332ac4 | 1565 | "Input file name"), |
3786063a | 1566 | OPT_STRING('o', "output", &file_name, "file", |
de332ac4 DA |
1567 | "Output file name"), |
1568 | OPT_BOOLEAN(0, "guest", &perf_guest, | |
1569 | "Collect guest os data"), | |
1570 | OPT_BOOLEAN(0, "host", &perf_host, | |
1571 | "Collect host os data"), | |
1572 | OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory", | |
1573 | "guest mount directory under which every guest os" | |
1574 | " instance has a subdir"), | |
1575 | OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name, | |
1576 | "file", "file saving guest os vmlinux"), | |
1577 | OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms, | |
1578 | "file", "file saving guest os /proc/kallsyms"), | |
1579 | OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, | |
1580 | "file", "file saving guest os /proc/modules"), | |
100b9073 DY |
1581 | OPT_INCR('v', "verbose", &verbose, |
1582 | "be more verbose (show counter open errors, etc)"), | |
de332ac4 DA |
1583 | OPT_END() |
1584 | }; | |
1585 | ||
09a71b97 RR |
1586 | const char *const kvm_subcommands[] = { "top", "record", "report", "diff", |
1587 | "buildid-list", "stat", NULL }; | |
1588 | const char *kvm_usage[] = { NULL, NULL }; | |
de332ac4 | 1589 | |
1aed2671 JR |
1590 | perf_host = 0; |
1591 | perf_guest = 1; | |
a1645ce1 | 1592 | |
09a71b97 RR |
1593 | argc = parse_options_subcommand(argc, argv, kvm_options, kvm_subcommands, kvm_usage, |
1594 | PARSE_OPT_STOP_AT_NON_OPTION); | |
a1645ce1 ZY |
1595 | if (!argc) |
1596 | usage_with_options(kvm_usage, kvm_options); | |
1597 | ||
1598 | if (!perf_host) | |
1599 | perf_guest = 1; | |
1600 | ||
3786063a | 1601 | if (!file_name) { |
e1a2b174 | 1602 | file_name = get_filename_for_perf_kvm(); |
de332ac4 | 1603 | |
3786063a | 1604 | if (!file_name) { |
de332ac4 DA |
1605 | pr_err("Failed to allocate memory for filename\n"); |
1606 | return -ENOMEM; | |
1607 | } | |
a1645ce1 ZY |
1608 | } |
1609 | ||
1610 | if (!strncmp(argv[0], "rec", 3)) | |
3786063a | 1611 | return __cmd_record(file_name, argc, argv); |
a1645ce1 | 1612 | else if (!strncmp(argv[0], "rep", 3)) |
3786063a | 1613 | return __cmd_report(file_name, argc, argv); |
a1645ce1 | 1614 | else if (!strncmp(argv[0], "diff", 4)) |
b0ad8ea6 | 1615 | return cmd_diff(argc, argv); |
a1645ce1 | 1616 | else if (!strncmp(argv[0], "top", 3)) |
b0ad8ea6 | 1617 | return cmd_top(argc, argv); |
a1645ce1 | 1618 | else if (!strncmp(argv[0], "buildid-list", 12)) |
3786063a | 1619 | return __cmd_buildid_list(file_name, argc, argv); |
da50ad69 | 1620 | #ifdef HAVE_KVM_STAT_SUPPORT |
bcf6edcd | 1621 | else if (!strncmp(argv[0], "stat", 4)) |
3786063a | 1622 | return kvm_cmd_stat(file_name, argc, argv); |
7321090f | 1623 | #endif |
a1645ce1 ZY |
1624 | else |
1625 | usage_with_options(kvm_usage, kvm_options); | |
1626 | ||
1627 | return 0; | |
1628 | } |