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" |
a1645ce1 ZY |
6 | #include "util/util.h" |
7 | #include "util/cache.h" | |
8 | #include "util/symbol.h" | |
9 | #include "util/thread.h" | |
10 | #include "util/header.h" | |
11 | #include "util/session.h" | |
2e73f00f | 12 | #include "util/intlist.h" |
a1645ce1 ZY |
13 | #include "util/parse-options.h" |
14 | #include "util/trace-event.h" | |
a1645ce1 | 15 | #include "util/debug.h" |
553873e1 | 16 | #include <api/fs/debugfs.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" |
a1645ce1 ZY |
21 | |
22 | #include <sys/prctl.h> | |
87419c9a | 23 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 | 24 | #include <sys/timerfd.h> |
87419c9a | 25 | #endif |
a1645ce1 | 26 | |
1afe1d14 | 27 | #include <termios.h> |
a1645ce1 ZY |
28 | #include <semaphore.h> |
29 | #include <pthread.h> | |
30 | #include <math.h> | |
31 | ||
7321090f | 32 | #if defined(__i386__) || defined(__x86_64__) |
d2709c7c DH |
33 | #include <asm/svm.h> |
34 | #include <asm/vmx.h> | |
35 | #include <asm/kvm.h> | |
bcf6edcd XG |
36 | |
37 | struct event_key { | |
38 | #define INVALID_KEY (~0ULL) | |
39 | u64 key; | |
40 | int info; | |
41 | }; | |
42 | ||
de332ac4 DA |
43 | struct kvm_event_stats { |
44 | u64 time; | |
45 | struct stats stats; | |
46 | }; | |
47 | ||
48 | struct kvm_event { | |
49 | struct list_head hash_entry; | |
50 | struct rb_node rb; | |
51 | ||
52 | struct event_key key; | |
53 | ||
54 | struct kvm_event_stats total; | |
55 | ||
56 | #define DEFAULT_VCPU_NUM 8 | |
57 | int max_vcpu; | |
58 | struct kvm_event_stats *vcpu; | |
59 | }; | |
60 | ||
61 | typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int); | |
62 | ||
63 | struct kvm_event_key { | |
64 | const char *name; | |
65 | key_cmp_fun key; | |
66 | }; | |
67 | ||
68 | ||
3786063a | 69 | struct perf_kvm_stat; |
de332ac4 | 70 | |
bcf6edcd | 71 | struct kvm_events_ops { |
14907e73 ACM |
72 | bool (*is_begin_event)(struct perf_evsel *evsel, |
73 | struct perf_sample *sample, | |
74 | struct event_key *key); | |
75 | bool (*is_end_event)(struct perf_evsel *evsel, | |
76 | struct perf_sample *sample, struct event_key *key); | |
3786063a | 77 | void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, |
de332ac4 | 78 | char decode[20]); |
bcf6edcd XG |
79 | const char *name; |
80 | }; | |
81 | ||
de332ac4 DA |
82 | struct exit_reasons_table { |
83 | unsigned long exit_code; | |
84 | const char *reason; | |
85 | }; | |
86 | ||
87 | #define EVENTS_BITS 12 | |
88 | #define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS) | |
89 | ||
3786063a | 90 | struct perf_kvm_stat { |
de332ac4 | 91 | struct perf_tool tool; |
b4006796 | 92 | struct record_opts opts; |
1afe1d14 | 93 | struct perf_evlist *evlist; |
de332ac4 DA |
94 | struct perf_session *session; |
95 | ||
96 | const char *file_name; | |
97 | const char *report_event; | |
98 | const char *sort_key; | |
99 | int trace_vcpu; | |
100 | ||
101 | struct exit_reasons_table *exit_reasons; | |
102 | int exit_reasons_size; | |
103 | const char *exit_reasons_isa; | |
104 | ||
105 | struct kvm_events_ops *events_ops; | |
106 | key_cmp_fun compare; | |
107 | struct list_head kvm_events_cache[EVENTS_CACHE_SIZE]; | |
1afe1d14 | 108 | |
de332ac4 DA |
109 | u64 total_time; |
110 | u64 total_count; | |
1afe1d14 | 111 | u64 lost_events; |
70f7b4a7 | 112 | u64 duration; |
de332ac4 | 113 | |
2e73f00f DA |
114 | const char *pid_str; |
115 | struct intlist *pid_list; | |
116 | ||
de332ac4 | 117 | struct rb_root result; |
1afe1d14 DA |
118 | |
119 | int timerfd; | |
120 | unsigned int display_time; | |
121 | bool live; | |
de332ac4 DA |
122 | }; |
123 | ||
124 | ||
14907e73 ACM |
125 | static void exit_event_get_key(struct perf_evsel *evsel, |
126 | struct perf_sample *sample, | |
127 | struct event_key *key) | |
bcf6edcd XG |
128 | { |
129 | key->info = 0; | |
14907e73 | 130 | key->key = perf_evsel__intval(evsel, sample, "exit_reason"); |
bcf6edcd XG |
131 | } |
132 | ||
14907e73 | 133 | static bool kvm_exit_event(struct perf_evsel *evsel) |
bcf6edcd | 134 | { |
14907e73 | 135 | return !strcmp(evsel->name, "kvm:kvm_exit"); |
bcf6edcd XG |
136 | } |
137 | ||
14907e73 ACM |
138 | static bool exit_event_begin(struct perf_evsel *evsel, |
139 | struct perf_sample *sample, struct event_key *key) | |
bcf6edcd | 140 | { |
14907e73 ACM |
141 | if (kvm_exit_event(evsel)) { |
142 | exit_event_get_key(evsel, sample, key); | |
bcf6edcd XG |
143 | return true; |
144 | } | |
145 | ||
146 | return false; | |
147 | } | |
148 | ||
14907e73 | 149 | static bool kvm_entry_event(struct perf_evsel *evsel) |
bcf6edcd | 150 | { |
14907e73 | 151 | return !strcmp(evsel->name, "kvm:kvm_entry"); |
bcf6edcd XG |
152 | } |
153 | ||
14907e73 ACM |
154 | static bool exit_event_end(struct perf_evsel *evsel, |
155 | struct perf_sample *sample __maybe_unused, | |
156 | struct event_key *key __maybe_unused) | |
bcf6edcd | 157 | { |
14907e73 | 158 | return kvm_entry_event(evsel); |
bcf6edcd XG |
159 | } |
160 | ||
de332ac4 | 161 | static struct exit_reasons_table vmx_exit_reasons[] = { |
bcf6edcd XG |
162 | VMX_EXIT_REASONS |
163 | }; | |
164 | ||
de332ac4 | 165 | static struct exit_reasons_table svm_exit_reasons[] = { |
bcf6edcd XG |
166 | SVM_EXIT_REASONS |
167 | }; | |
168 | ||
3786063a | 169 | static const char *get_exit_reason(struct perf_kvm_stat *kvm, u64 exit_code) |
bcf6edcd | 170 | { |
de332ac4 DA |
171 | int i = kvm->exit_reasons_size; |
172 | struct exit_reasons_table *tbl = kvm->exit_reasons; | |
bcf6edcd | 173 | |
de332ac4 DA |
174 | while (i--) { |
175 | if (tbl->exit_code == exit_code) | |
176 | return tbl->reason; | |
177 | tbl++; | |
bcf6edcd XG |
178 | } |
179 | ||
180 | pr_err("unknown kvm exit code:%lld on %s\n", | |
de332ac4 | 181 | (unsigned long long)exit_code, kvm->exit_reasons_isa); |
bcf6edcd XG |
182 | return "UNKNOWN"; |
183 | } | |
184 | ||
3786063a | 185 | static void exit_event_decode_key(struct perf_kvm_stat *kvm, |
de332ac4 DA |
186 | struct event_key *key, |
187 | char decode[20]) | |
bcf6edcd | 188 | { |
de332ac4 | 189 | const char *exit_reason = get_exit_reason(kvm, key->key); |
bcf6edcd XG |
190 | |
191 | scnprintf(decode, 20, "%s", exit_reason); | |
192 | } | |
193 | ||
194 | static struct kvm_events_ops exit_events = { | |
195 | .is_begin_event = exit_event_begin, | |
196 | .is_end_event = exit_event_end, | |
197 | .decode_key = exit_event_decode_key, | |
198 | .name = "VM-EXIT" | |
199 | }; | |
200 | ||
de332ac4 DA |
201 | /* |
202 | * For the mmio events, we treat: | |
203 | * the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry | |
204 | * the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...). | |
205 | */ | |
14907e73 ACM |
206 | static void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample, |
207 | struct event_key *key) | |
bcf6edcd | 208 | { |
14907e73 ACM |
209 | key->key = perf_evsel__intval(evsel, sample, "gpa"); |
210 | key->info = perf_evsel__intval(evsel, sample, "type"); | |
bcf6edcd XG |
211 | } |
212 | ||
213 | #define KVM_TRACE_MMIO_READ_UNSATISFIED 0 | |
214 | #define KVM_TRACE_MMIO_READ 1 | |
215 | #define KVM_TRACE_MMIO_WRITE 2 | |
216 | ||
14907e73 ACM |
217 | static bool mmio_event_begin(struct perf_evsel *evsel, |
218 | struct perf_sample *sample, struct event_key *key) | |
bcf6edcd XG |
219 | { |
220 | /* MMIO read begin event in kernel. */ | |
14907e73 | 221 | if (kvm_exit_event(evsel)) |
bcf6edcd XG |
222 | return true; |
223 | ||
224 | /* MMIO write begin event in kernel. */ | |
14907e73 ACM |
225 | if (!strcmp(evsel->name, "kvm:kvm_mmio") && |
226 | perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_WRITE) { | |
227 | mmio_event_get_key(evsel, sample, key); | |
bcf6edcd XG |
228 | return true; |
229 | } | |
230 | ||
231 | return false; | |
232 | } | |
233 | ||
14907e73 ACM |
234 | static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample, |
235 | struct event_key *key) | |
bcf6edcd XG |
236 | { |
237 | /* MMIO write end event in kernel. */ | |
14907e73 | 238 | if (kvm_entry_event(evsel)) |
bcf6edcd XG |
239 | return true; |
240 | ||
241 | /* MMIO read end event in kernel.*/ | |
14907e73 ACM |
242 | if (!strcmp(evsel->name, "kvm:kvm_mmio") && |
243 | perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_READ) { | |
244 | mmio_event_get_key(evsel, sample, key); | |
bcf6edcd XG |
245 | return true; |
246 | } | |
247 | ||
248 | return false; | |
249 | } | |
250 | ||
3786063a | 251 | static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, |
de332ac4 DA |
252 | struct event_key *key, |
253 | char decode[20]) | |
bcf6edcd XG |
254 | { |
255 | scnprintf(decode, 20, "%#lx:%s", (unsigned long)key->key, | |
256 | key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R"); | |
257 | } | |
258 | ||
259 | static struct kvm_events_ops mmio_events = { | |
260 | .is_begin_event = mmio_event_begin, | |
261 | .is_end_event = mmio_event_end, | |
262 | .decode_key = mmio_event_decode_key, | |
263 | .name = "MMIO Access" | |
264 | }; | |
265 | ||
266 | /* The time of emulation pio access is from kvm_pio to kvm_entry. */ | |
14907e73 ACM |
267 | static void ioport_event_get_key(struct perf_evsel *evsel, |
268 | struct perf_sample *sample, | |
269 | struct event_key *key) | |
bcf6edcd | 270 | { |
14907e73 ACM |
271 | key->key = perf_evsel__intval(evsel, sample, "port"); |
272 | key->info = perf_evsel__intval(evsel, sample, "rw"); | |
bcf6edcd XG |
273 | } |
274 | ||
14907e73 ACM |
275 | static bool ioport_event_begin(struct perf_evsel *evsel, |
276 | struct perf_sample *sample, | |
277 | struct event_key *key) | |
bcf6edcd | 278 | { |
14907e73 ACM |
279 | if (!strcmp(evsel->name, "kvm:kvm_pio")) { |
280 | ioport_event_get_key(evsel, sample, key); | |
bcf6edcd XG |
281 | return true; |
282 | } | |
283 | ||
284 | return false; | |
285 | } | |
286 | ||
14907e73 ACM |
287 | static bool ioport_event_end(struct perf_evsel *evsel, |
288 | struct perf_sample *sample __maybe_unused, | |
bcf6edcd XG |
289 | struct event_key *key __maybe_unused) |
290 | { | |
14907e73 | 291 | return kvm_entry_event(evsel); |
bcf6edcd XG |
292 | } |
293 | ||
3786063a | 294 | static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, |
de332ac4 DA |
295 | struct event_key *key, |
296 | char decode[20]) | |
bcf6edcd XG |
297 | { |
298 | scnprintf(decode, 20, "%#llx:%s", (unsigned long long)key->key, | |
299 | key->info ? "POUT" : "PIN"); | |
300 | } | |
301 | ||
302 | static struct kvm_events_ops ioport_events = { | |
303 | .is_begin_event = ioport_event_begin, | |
304 | .is_end_event = ioport_event_end, | |
305 | .decode_key = ioport_event_decode_key, | |
306 | .name = "IO Port Access" | |
307 | }; | |
308 | ||
3786063a | 309 | static bool register_kvm_events_ops(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
310 | { |
311 | bool ret = true; | |
312 | ||
de332ac4 DA |
313 | if (!strcmp(kvm->report_event, "vmexit")) |
314 | kvm->events_ops = &exit_events; | |
315 | else if (!strcmp(kvm->report_event, "mmio")) | |
316 | kvm->events_ops = &mmio_events; | |
317 | else if (!strcmp(kvm->report_event, "ioport")) | |
318 | kvm->events_ops = &ioport_events; | |
bcf6edcd | 319 | else { |
de332ac4 | 320 | pr_err("Unknown report event:%s\n", kvm->report_event); |
bcf6edcd XG |
321 | ret = false; |
322 | } | |
323 | ||
324 | return ret; | |
325 | } | |
326 | ||
bcf6edcd XG |
327 | struct vcpu_event_record { |
328 | int vcpu_id; | |
329 | u64 start_time; | |
330 | struct kvm_event *last_event; | |
331 | }; | |
332 | ||
bcf6edcd | 333 | |
3786063a | 334 | static void init_kvm_event_record(struct perf_kvm_stat *kvm) |
bcf6edcd | 335 | { |
b880deea | 336 | unsigned int i; |
bcf6edcd | 337 | |
b880deea | 338 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) |
de332ac4 | 339 | INIT_LIST_HEAD(&kvm->kvm_events_cache[i]); |
bcf6edcd XG |
340 | } |
341 | ||
87419c9a | 342 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
343 | static void clear_events_cache_stats(struct list_head *kvm_events_cache) |
344 | { | |
345 | struct list_head *head; | |
346 | struct kvm_event *event; | |
347 | unsigned int i; | |
62d04dbf | 348 | int j; |
1afe1d14 DA |
349 | |
350 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) { | |
351 | head = &kvm_events_cache[i]; | |
352 | list_for_each_entry(event, head, hash_entry) { | |
353 | /* reset stats for event */ | |
62d04dbf DA |
354 | event->total.time = 0; |
355 | init_stats(&event->total.stats); | |
356 | ||
357 | for (j = 0; j < event->max_vcpu; ++j) { | |
358 | event->vcpu[j].time = 0; | |
359 | init_stats(&event->vcpu[j].stats); | |
360 | } | |
1afe1d14 DA |
361 | } |
362 | } | |
363 | } | |
87419c9a | 364 | #endif |
1afe1d14 | 365 | |
bcf6edcd XG |
366 | static int kvm_events_hash_fn(u64 key) |
367 | { | |
368 | return key & (EVENTS_CACHE_SIZE - 1); | |
369 | } | |
370 | ||
371 | static bool kvm_event_expand(struct kvm_event *event, int vcpu_id) | |
372 | { | |
373 | int old_max_vcpu = event->max_vcpu; | |
6ca5f308 | 374 | void *prev; |
bcf6edcd XG |
375 | |
376 | if (vcpu_id < event->max_vcpu) | |
377 | return true; | |
378 | ||
379 | while (event->max_vcpu <= vcpu_id) | |
380 | event->max_vcpu += DEFAULT_VCPU_NUM; | |
381 | ||
6ca5f308 | 382 | prev = event->vcpu; |
bcf6edcd XG |
383 | event->vcpu = realloc(event->vcpu, |
384 | event->max_vcpu * sizeof(*event->vcpu)); | |
385 | if (!event->vcpu) { | |
6ca5f308 | 386 | free(prev); |
bcf6edcd XG |
387 | pr_err("Not enough memory\n"); |
388 | return false; | |
389 | } | |
390 | ||
391 | memset(event->vcpu + old_max_vcpu, 0, | |
392 | (event->max_vcpu - old_max_vcpu) * sizeof(*event->vcpu)); | |
393 | return true; | |
394 | } | |
395 | ||
396 | static struct kvm_event *kvm_alloc_init_event(struct event_key *key) | |
397 | { | |
398 | struct kvm_event *event; | |
399 | ||
400 | event = zalloc(sizeof(*event)); | |
401 | if (!event) { | |
402 | pr_err("Not enough memory\n"); | |
403 | return NULL; | |
404 | } | |
405 | ||
406 | event->key = *key; | |
acb61fc8 | 407 | init_stats(&event->total.stats); |
bcf6edcd XG |
408 | return event; |
409 | } | |
410 | ||
3786063a | 411 | static struct kvm_event *find_create_kvm_event(struct perf_kvm_stat *kvm, |
de332ac4 | 412 | struct event_key *key) |
bcf6edcd XG |
413 | { |
414 | struct kvm_event *event; | |
415 | struct list_head *head; | |
416 | ||
417 | BUG_ON(key->key == INVALID_KEY); | |
418 | ||
de332ac4 | 419 | head = &kvm->kvm_events_cache[kvm_events_hash_fn(key->key)]; |
355afe81 | 420 | list_for_each_entry(event, head, hash_entry) { |
bcf6edcd XG |
421 | if (event->key.key == key->key && event->key.info == key->info) |
422 | return event; | |
355afe81 | 423 | } |
bcf6edcd XG |
424 | |
425 | event = kvm_alloc_init_event(key); | |
426 | if (!event) | |
427 | return NULL; | |
428 | ||
429 | list_add(&event->hash_entry, head); | |
430 | return event; | |
431 | } | |
432 | ||
3786063a | 433 | static bool handle_begin_event(struct perf_kvm_stat *kvm, |
de332ac4 | 434 | struct vcpu_event_record *vcpu_record, |
bcf6edcd XG |
435 | struct event_key *key, u64 timestamp) |
436 | { | |
437 | struct kvm_event *event = NULL; | |
438 | ||
439 | if (key->key != INVALID_KEY) | |
de332ac4 | 440 | event = find_create_kvm_event(kvm, key); |
bcf6edcd XG |
441 | |
442 | vcpu_record->last_event = event; | |
443 | vcpu_record->start_time = timestamp; | |
444 | return true; | |
445 | } | |
446 | ||
447 | static void | |
448 | kvm_update_event_stats(struct kvm_event_stats *kvm_stats, u64 time_diff) | |
449 | { | |
450 | kvm_stats->time += time_diff; | |
451 | update_stats(&kvm_stats->stats, time_diff); | |
452 | } | |
453 | ||
454 | static double kvm_event_rel_stddev(int vcpu_id, struct kvm_event *event) | |
455 | { | |
456 | struct kvm_event_stats *kvm_stats = &event->total; | |
457 | ||
458 | if (vcpu_id != -1) | |
459 | kvm_stats = &event->vcpu[vcpu_id]; | |
460 | ||
461 | return rel_stddev_stats(stddev_stats(&kvm_stats->stats), | |
462 | avg_stats(&kvm_stats->stats)); | |
463 | } | |
464 | ||
465 | static bool update_kvm_event(struct kvm_event *event, int vcpu_id, | |
466 | u64 time_diff) | |
467 | { | |
2aa8eab0 DA |
468 | if (vcpu_id == -1) { |
469 | kvm_update_event_stats(&event->total, time_diff); | |
470 | return true; | |
471 | } | |
bcf6edcd XG |
472 | |
473 | if (!kvm_event_expand(event, vcpu_id)) | |
474 | return false; | |
475 | ||
476 | kvm_update_event_stats(&event->vcpu[vcpu_id], time_diff); | |
477 | return true; | |
478 | } | |
479 | ||
3786063a | 480 | static bool handle_end_event(struct perf_kvm_stat *kvm, |
de332ac4 DA |
481 | struct vcpu_event_record *vcpu_record, |
482 | struct event_key *key, | |
70f7b4a7 | 483 | struct perf_sample *sample) |
bcf6edcd XG |
484 | { |
485 | struct kvm_event *event; | |
486 | u64 time_begin, time_diff; | |
2aa8eab0 DA |
487 | int vcpu; |
488 | ||
489 | if (kvm->trace_vcpu == -1) | |
490 | vcpu = -1; | |
491 | else | |
492 | vcpu = vcpu_record->vcpu_id; | |
bcf6edcd XG |
493 | |
494 | event = vcpu_record->last_event; | |
495 | time_begin = vcpu_record->start_time; | |
496 | ||
497 | /* The begin event is not caught. */ | |
498 | if (!time_begin) | |
499 | return true; | |
500 | ||
501 | /* | |
502 | * In some case, the 'begin event' only records the start timestamp, | |
503 | * the actual event is recognized in the 'end event' (e.g. mmio-event). | |
504 | */ | |
505 | ||
506 | /* Both begin and end events did not get the key. */ | |
507 | if (!event && key->key == INVALID_KEY) | |
508 | return true; | |
509 | ||
510 | if (!event) | |
de332ac4 | 511 | event = find_create_kvm_event(kvm, key); |
bcf6edcd XG |
512 | |
513 | if (!event) | |
514 | return false; | |
515 | ||
516 | vcpu_record->last_event = NULL; | |
517 | vcpu_record->start_time = 0; | |
518 | ||
1afe1d14 | 519 | /* seems to happen once in a while during live mode */ |
70f7b4a7 | 520 | if (sample->time < time_begin) { |
1afe1d14 DA |
521 | pr_debug("End time before begin time; skipping event.\n"); |
522 | return true; | |
523 | } | |
bcf6edcd | 524 | |
70f7b4a7 DA |
525 | time_diff = sample->time - time_begin; |
526 | ||
527 | if (kvm->duration && time_diff > kvm->duration) { | |
528 | char decode[32]; | |
529 | ||
530 | kvm->events_ops->decode_key(kvm, &event->key, decode); | |
531 | if (strcmp(decode, "HLT")) { | |
532 | pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n", | |
533 | sample->time, sample->pid, vcpu_record->vcpu_id, | |
534 | decode, time_diff/1000); | |
535 | } | |
536 | } | |
537 | ||
2aa8eab0 | 538 | return update_kvm_event(event, vcpu, time_diff); |
bcf6edcd XG |
539 | } |
540 | ||
14907e73 ACM |
541 | static |
542 | struct vcpu_event_record *per_vcpu_record(struct thread *thread, | |
543 | struct perf_evsel *evsel, | |
544 | struct perf_sample *sample) | |
bcf6edcd XG |
545 | { |
546 | /* Only kvm_entry records vcpu id. */ | |
14907e73 | 547 | if (!thread->priv && kvm_entry_event(evsel)) { |
bcf6edcd XG |
548 | struct vcpu_event_record *vcpu_record; |
549 | ||
14907e73 | 550 | vcpu_record = zalloc(sizeof(*vcpu_record)); |
bcf6edcd | 551 | if (!vcpu_record) { |
14907e73 | 552 | pr_err("%s: Not enough memory\n", __func__); |
bcf6edcd XG |
553 | return NULL; |
554 | } | |
555 | ||
14907e73 | 556 | vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, "vcpu_id"); |
bcf6edcd XG |
557 | thread->priv = vcpu_record; |
558 | } | |
559 | ||
14907e73 | 560 | return thread->priv; |
bcf6edcd XG |
561 | } |
562 | ||
3786063a | 563 | static bool handle_kvm_event(struct perf_kvm_stat *kvm, |
de332ac4 DA |
564 | struct thread *thread, |
565 | struct perf_evsel *evsel, | |
14907e73 | 566 | struct perf_sample *sample) |
bcf6edcd XG |
567 | { |
568 | struct vcpu_event_record *vcpu_record; | |
569 | struct event_key key = {.key = INVALID_KEY}; | |
570 | ||
14907e73 | 571 | vcpu_record = per_vcpu_record(thread, evsel, sample); |
bcf6edcd XG |
572 | if (!vcpu_record) |
573 | return true; | |
574 | ||
2aa8eab0 DA |
575 | /* only process events for vcpus user cares about */ |
576 | if ((kvm->trace_vcpu != -1) && | |
577 | (kvm->trace_vcpu != vcpu_record->vcpu_id)) | |
578 | return true; | |
579 | ||
de332ac4 DA |
580 | if (kvm->events_ops->is_begin_event(evsel, sample, &key)) |
581 | return handle_begin_event(kvm, vcpu_record, &key, sample->time); | |
bcf6edcd | 582 | |
de332ac4 | 583 | if (kvm->events_ops->is_end_event(evsel, sample, &key)) |
70f7b4a7 | 584 | return handle_end_event(kvm, vcpu_record, &key, sample); |
bcf6edcd XG |
585 | |
586 | return true; | |
587 | } | |
588 | ||
bcf6edcd XG |
589 | #define GET_EVENT_KEY(func, field) \ |
590 | static u64 get_event_ ##func(struct kvm_event *event, int vcpu) \ | |
591 | { \ | |
592 | if (vcpu == -1) \ | |
593 | return event->total.field; \ | |
594 | \ | |
595 | if (vcpu >= event->max_vcpu) \ | |
596 | return 0; \ | |
597 | \ | |
598 | return event->vcpu[vcpu].field; \ | |
599 | } | |
600 | ||
601 | #define COMPARE_EVENT_KEY(func, field) \ | |
602 | GET_EVENT_KEY(func, field) \ | |
603 | static int compare_kvm_event_ ## func(struct kvm_event *one, \ | |
604 | struct kvm_event *two, int vcpu)\ | |
605 | { \ | |
606 | return get_event_ ##func(one, vcpu) > \ | |
607 | get_event_ ##func(two, vcpu); \ | |
608 | } | |
609 | ||
610 | GET_EVENT_KEY(time, time); | |
611 | COMPARE_EVENT_KEY(count, stats.n); | |
612 | COMPARE_EVENT_KEY(mean, stats.mean); | |
62d04dbf DA |
613 | GET_EVENT_KEY(max, stats.max); |
614 | GET_EVENT_KEY(min, stats.min); | |
bcf6edcd XG |
615 | |
616 | #define DEF_SORT_NAME_KEY(name, compare_key) \ | |
617 | { #name, compare_kvm_event_ ## compare_key } | |
618 | ||
619 | static struct kvm_event_key keys[] = { | |
620 | DEF_SORT_NAME_KEY(sample, count), | |
621 | DEF_SORT_NAME_KEY(time, mean), | |
622 | { NULL, NULL } | |
623 | }; | |
624 | ||
3786063a | 625 | static bool select_key(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
626 | { |
627 | int i; | |
628 | ||
629 | for (i = 0; keys[i].name; i++) { | |
de332ac4 DA |
630 | if (!strcmp(keys[i].name, kvm->sort_key)) { |
631 | kvm->compare = keys[i].key; | |
bcf6edcd XG |
632 | return true; |
633 | } | |
634 | } | |
635 | ||
de332ac4 | 636 | pr_err("Unknown compare key:%s\n", kvm->sort_key); |
bcf6edcd XG |
637 | return false; |
638 | } | |
639 | ||
de332ac4 DA |
640 | static void insert_to_result(struct rb_root *result, struct kvm_event *event, |
641 | key_cmp_fun bigger, int vcpu) | |
bcf6edcd | 642 | { |
de332ac4 | 643 | struct rb_node **rb = &result->rb_node; |
bcf6edcd XG |
644 | struct rb_node *parent = NULL; |
645 | struct kvm_event *p; | |
646 | ||
647 | while (*rb) { | |
648 | p = container_of(*rb, struct kvm_event, rb); | |
649 | parent = *rb; | |
650 | ||
651 | if (bigger(event, p, vcpu)) | |
652 | rb = &(*rb)->rb_left; | |
653 | else | |
654 | rb = &(*rb)->rb_right; | |
655 | } | |
656 | ||
657 | rb_link_node(&event->rb, parent, rb); | |
de332ac4 | 658 | rb_insert_color(&event->rb, result); |
bcf6edcd XG |
659 | } |
660 | ||
3786063a XG |
661 | static void |
662 | update_total_count(struct perf_kvm_stat *kvm, struct kvm_event *event) | |
bcf6edcd | 663 | { |
de332ac4 DA |
664 | int vcpu = kvm->trace_vcpu; |
665 | ||
666 | kvm->total_count += get_event_count(event, vcpu); | |
667 | kvm->total_time += get_event_time(event, vcpu); | |
bcf6edcd XG |
668 | } |
669 | ||
670 | static bool event_is_valid(struct kvm_event *event, int vcpu) | |
671 | { | |
672 | return !!get_event_count(event, vcpu); | |
673 | } | |
674 | ||
3786063a | 675 | static void sort_result(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
676 | { |
677 | unsigned int i; | |
de332ac4 | 678 | int vcpu = kvm->trace_vcpu; |
bcf6edcd XG |
679 | struct kvm_event *event; |
680 | ||
355afe81 DA |
681 | for (i = 0; i < EVENTS_CACHE_SIZE; i++) { |
682 | list_for_each_entry(event, &kvm->kvm_events_cache[i], hash_entry) { | |
bcf6edcd | 683 | if (event_is_valid(event, vcpu)) { |
de332ac4 DA |
684 | update_total_count(kvm, event); |
685 | insert_to_result(&kvm->result, event, | |
686 | kvm->compare, vcpu); | |
bcf6edcd | 687 | } |
355afe81 DA |
688 | } |
689 | } | |
bcf6edcd XG |
690 | } |
691 | ||
692 | /* returns left most element of result, and erase it */ | |
de332ac4 | 693 | static struct kvm_event *pop_from_result(struct rb_root *result) |
bcf6edcd | 694 | { |
de332ac4 | 695 | struct rb_node *node = rb_first(result); |
bcf6edcd XG |
696 | |
697 | if (!node) | |
698 | return NULL; | |
699 | ||
de332ac4 | 700 | rb_erase(node, result); |
bcf6edcd XG |
701 | return container_of(node, struct kvm_event, rb); |
702 | } | |
703 | ||
1afe1d14 | 704 | static void print_vcpu_info(struct perf_kvm_stat *kvm) |
bcf6edcd | 705 | { |
1afe1d14 DA |
706 | int vcpu = kvm->trace_vcpu; |
707 | ||
bcf6edcd XG |
708 | pr_info("Analyze events for "); |
709 | ||
1afe1d14 DA |
710 | if (kvm->live) { |
711 | if (kvm->opts.target.system_wide) | |
712 | pr_info("all VMs, "); | |
713 | else if (kvm->opts.target.pid) | |
714 | pr_info("pid(s) %s, ", kvm->opts.target.pid); | |
715 | else | |
716 | pr_info("dazed and confused on what is monitored, "); | |
717 | } | |
718 | ||
bcf6edcd XG |
719 | if (vcpu == -1) |
720 | pr_info("all VCPUs:\n\n"); | |
721 | else | |
722 | pr_info("VCPU %d:\n\n", vcpu); | |
723 | } | |
724 | ||
1afe1d14 DA |
725 | static void show_timeofday(void) |
726 | { | |
727 | char date[64]; | |
728 | struct timeval tv; | |
729 | struct tm ltime; | |
730 | ||
731 | gettimeofday(&tv, NULL); | |
732 | if (localtime_r(&tv.tv_sec, <ime)) { | |
733 | strftime(date, sizeof(date), "%H:%M:%S", <ime); | |
734 | pr_info("%s.%06ld", date, tv.tv_usec); | |
735 | } else | |
736 | pr_info("00:00:00.000000"); | |
737 | ||
738 | return; | |
739 | } | |
740 | ||
3786063a | 741 | static void print_result(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
742 | { |
743 | char decode[20]; | |
744 | struct kvm_event *event; | |
de332ac4 | 745 | int vcpu = kvm->trace_vcpu; |
bcf6edcd | 746 | |
1afe1d14 DA |
747 | if (kvm->live) { |
748 | puts(CONSOLE_CLEAR); | |
749 | show_timeofday(); | |
750 | } | |
751 | ||
bcf6edcd | 752 | pr_info("\n\n"); |
1afe1d14 | 753 | print_vcpu_info(kvm); |
de332ac4 | 754 | pr_info("%20s ", kvm->events_ops->name); |
bcf6edcd XG |
755 | pr_info("%10s ", "Samples"); |
756 | pr_info("%9s ", "Samples%"); | |
757 | ||
758 | pr_info("%9s ", "Time%"); | |
62d04dbf DA |
759 | pr_info("%10s ", "Min Time"); |
760 | pr_info("%10s ", "Max Time"); | |
bcf6edcd XG |
761 | pr_info("%16s ", "Avg time"); |
762 | pr_info("\n\n"); | |
763 | ||
de332ac4 | 764 | while ((event = pop_from_result(&kvm->result))) { |
62d04dbf | 765 | u64 ecount, etime, max, min; |
bcf6edcd XG |
766 | |
767 | ecount = get_event_count(event, vcpu); | |
768 | etime = get_event_time(event, vcpu); | |
62d04dbf DA |
769 | max = get_event_max(event, vcpu); |
770 | min = get_event_min(event, vcpu); | |
bcf6edcd | 771 | |
de332ac4 | 772 | kvm->events_ops->decode_key(kvm, &event->key, decode); |
bcf6edcd XG |
773 | pr_info("%20s ", decode); |
774 | pr_info("%10llu ", (unsigned long long)ecount); | |
de332ac4 DA |
775 | pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); |
776 | pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); | |
62d04dbf DA |
777 | pr_info("%8" PRIu64 "us ", min / 1000); |
778 | pr_info("%8" PRIu64 "us ", max / 1000); | |
bcf6edcd XG |
779 | pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3, |
780 | kvm_event_rel_stddev(vcpu, event)); | |
781 | pr_info("\n"); | |
782 | } | |
783 | ||
e4f7637f DA |
784 | pr_info("\nTotal Samples:%" PRIu64 ", Total events handled time:%.2fus.\n\n", |
785 | kvm->total_count, kvm->total_time / 1e3); | |
1afe1d14 DA |
786 | |
787 | if (kvm->lost_events) | |
788 | pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events); | |
789 | } | |
790 | ||
87419c9a | 791 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
792 | static int process_lost_event(struct perf_tool *tool, |
793 | union perf_event *event __maybe_unused, | |
794 | struct perf_sample *sample __maybe_unused, | |
795 | struct machine *machine __maybe_unused) | |
796 | { | |
797 | struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, tool); | |
798 | ||
799 | kvm->lost_events++; | |
800 | return 0; | |
bcf6edcd | 801 | } |
87419c9a | 802 | #endif |
bcf6edcd | 803 | |
2e73f00f DA |
804 | static bool skip_sample(struct perf_kvm_stat *kvm, |
805 | struct perf_sample *sample) | |
806 | { | |
807 | if (kvm->pid_list && intlist__find(kvm->pid_list, sample->pid) == NULL) | |
808 | return true; | |
809 | ||
810 | return false; | |
811 | } | |
812 | ||
de332ac4 | 813 | static int process_sample_event(struct perf_tool *tool, |
bcf6edcd XG |
814 | union perf_event *event, |
815 | struct perf_sample *sample, | |
816 | struct perf_evsel *evsel, | |
817 | struct machine *machine) | |
818 | { | |
2e73f00f | 819 | struct thread *thread; |
3786063a XG |
820 | struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, |
821 | tool); | |
bcf6edcd | 822 | |
2e73f00f DA |
823 | if (skip_sample(kvm, sample)) |
824 | return 0; | |
825 | ||
314add6b | 826 | thread = machine__findnew_thread(machine, sample->pid, sample->tid); |
bcf6edcd XG |
827 | if (thread == NULL) { |
828 | pr_debug("problem processing %d event, skipping it.\n", | |
829 | event->header.type); | |
830 | return -1; | |
831 | } | |
832 | ||
de332ac4 | 833 | if (!handle_kvm_event(kvm, thread, evsel, sample)) |
bcf6edcd XG |
834 | return -1; |
835 | ||
836 | return 0; | |
837 | } | |
838 | ||
1afe1d14 | 839 | static int cpu_isa_config(struct perf_kvm_stat *kvm) |
bcf6edcd | 840 | { |
1afe1d14 DA |
841 | char buf[64], *cpuid; |
842 | int err, isa; | |
843 | ||
844 | if (kvm->live) { | |
845 | err = get_cpuid(buf, sizeof(buf)); | |
846 | if (err != 0) { | |
847 | pr_err("Failed to look up CPU type (Intel or AMD)\n"); | |
848 | return err; | |
849 | } | |
850 | cpuid = buf; | |
851 | } else | |
852 | cpuid = kvm->session->header.env.cpuid; | |
bcf6edcd | 853 | |
bcf6edcd XG |
854 | if (strstr(cpuid, "Intel")) |
855 | isa = 1; | |
856 | else if (strstr(cpuid, "AMD")) | |
857 | isa = 0; | |
858 | else { | |
859 | pr_err("CPU %s is not supported.\n", cpuid); | |
1afe1d14 DA |
860 | return -ENOTSUP; |
861 | } | |
862 | ||
863 | if (isa == 1) { | |
864 | kvm->exit_reasons = vmx_exit_reasons; | |
865 | kvm->exit_reasons_size = ARRAY_SIZE(vmx_exit_reasons); | |
866 | kvm->exit_reasons_isa = "VMX"; | |
867 | } | |
868 | ||
869 | return 0; | |
870 | } | |
871 | ||
872 | static bool verify_vcpu(int vcpu) | |
873 | { | |
874 | if (vcpu != -1 && vcpu < 0) { | |
875 | pr_err("Invalid vcpu:%d.\n", vcpu); | |
876 | return false; | |
877 | } | |
878 | ||
879 | return true; | |
880 | } | |
881 | ||
87419c9a | 882 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
883 | /* keeping the max events to a modest level to keep |
884 | * the processing of samples per mmap smooth. | |
885 | */ | |
886 | #define PERF_KVM__MAX_EVENTS_PER_MMAP 25 | |
887 | ||
888 | static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx, | |
889 | u64 *mmap_time) | |
890 | { | |
891 | union perf_event *event; | |
892 | struct perf_sample sample; | |
893 | s64 n = 0; | |
894 | int err; | |
895 | ||
896 | *mmap_time = ULLONG_MAX; | |
897 | while ((event = perf_evlist__mmap_read(kvm->evlist, idx)) != NULL) { | |
898 | err = perf_evlist__parse_sample(kvm->evlist, event, &sample); | |
899 | if (err) { | |
8e50d384 | 900 | perf_evlist__mmap_consume(kvm->evlist, idx); |
1afe1d14 DA |
901 | pr_err("Failed to parse sample\n"); |
902 | return -1; | |
903 | } | |
904 | ||
905 | err = perf_session_queue_event(kvm->session, event, &sample, 0); | |
8e50d384 ZZ |
906 | /* |
907 | * FIXME: Here we can't consume the event, as perf_session_queue_event will | |
908 | * point to it, and it'll get possibly overwritten by the kernel. | |
909 | */ | |
910 | perf_evlist__mmap_consume(kvm->evlist, idx); | |
911 | ||
1afe1d14 DA |
912 | if (err) { |
913 | pr_err("Failed to enqueue sample: %d\n", err); | |
914 | return -1; | |
915 | } | |
916 | ||
917 | /* save time stamp of our first sample for this mmap */ | |
918 | if (n == 0) | |
919 | *mmap_time = sample.time; | |
920 | ||
921 | /* limit events per mmap handled all at once */ | |
922 | n++; | |
923 | if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) | |
924 | break; | |
925 | } | |
926 | ||
927 | return n; | |
928 | } | |
929 | ||
930 | static int perf_kvm__mmap_read(struct perf_kvm_stat *kvm) | |
931 | { | |
932 | int i, err, throttled = 0; | |
933 | s64 n, ntotal = 0; | |
934 | u64 flush_time = ULLONG_MAX, mmap_time; | |
935 | ||
936 | for (i = 0; i < kvm->evlist->nr_mmaps; i++) { | |
937 | n = perf_kvm__mmap_read_idx(kvm, i, &mmap_time); | |
938 | if (n < 0) | |
939 | return -1; | |
940 | ||
941 | /* flush time is going to be the minimum of all the individual | |
942 | * mmap times. Essentially, we flush all the samples queued up | |
943 | * from the last pass under our minimal start time -- that leaves | |
944 | * a very small race for samples to come in with a lower timestamp. | |
945 | * The ioctl to return the perf_clock timestamp should close the | |
946 | * race entirely. | |
947 | */ | |
948 | if (mmap_time < flush_time) | |
949 | flush_time = mmap_time; | |
950 | ||
951 | ntotal += n; | |
952 | if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) | |
953 | throttled = 1; | |
954 | } | |
955 | ||
956 | /* flush queue after each round in which we processed events */ | |
957 | if (ntotal) { | |
958 | kvm->session->ordered_samples.next_flush = flush_time; | |
959 | err = kvm->tool.finished_round(&kvm->tool, NULL, kvm->session); | |
960 | if (err) { | |
961 | if (kvm->lost_events) | |
962 | pr_info("\nLost events: %" PRIu64 "\n\n", | |
963 | kvm->lost_events); | |
964 | return err; | |
965 | } | |
966 | } | |
967 | ||
968 | return throttled; | |
969 | } | |
970 | ||
971 | static volatile int done; | |
972 | ||
973 | static void sig_handler(int sig __maybe_unused) | |
974 | { | |
975 | done = 1; | |
976 | } | |
977 | ||
978 | static int perf_kvm__timerfd_create(struct perf_kvm_stat *kvm) | |
979 | { | |
980 | struct itimerspec new_value; | |
981 | int rc = -1; | |
982 | ||
983 | kvm->timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK); | |
984 | if (kvm->timerfd < 0) { | |
985 | pr_err("timerfd_create failed\n"); | |
986 | goto out; | |
987 | } | |
988 | ||
989 | new_value.it_value.tv_sec = kvm->display_time; | |
990 | new_value.it_value.tv_nsec = 0; | |
991 | new_value.it_interval.tv_sec = kvm->display_time; | |
992 | new_value.it_interval.tv_nsec = 0; | |
993 | ||
994 | if (timerfd_settime(kvm->timerfd, 0, &new_value, NULL) != 0) { | |
995 | pr_err("timerfd_settime failed: %d\n", errno); | |
996 | close(kvm->timerfd); | |
997 | goto out; | |
998 | } | |
999 | ||
1000 | rc = 0; | |
1001 | out: | |
1002 | return rc; | |
1003 | } | |
1004 | ||
1005 | static int perf_kvm__handle_timerfd(struct perf_kvm_stat *kvm) | |
1006 | { | |
1007 | uint64_t c; | |
1008 | int rc; | |
1009 | ||
1010 | rc = read(kvm->timerfd, &c, sizeof(uint64_t)); | |
1011 | if (rc < 0) { | |
1012 | if (errno == EAGAIN) | |
1013 | return 0; | |
1014 | ||
1015 | pr_err("Failed to read timer fd: %d\n", errno); | |
1016 | return -1; | |
1017 | } | |
1018 | ||
1019 | if (rc != sizeof(uint64_t)) { | |
1020 | pr_err("Error reading timer fd - invalid size returned\n"); | |
1021 | return -1; | |
1022 | } | |
1023 | ||
1024 | if (c != 1) | |
1025 | pr_debug("Missed timer beats: %" PRIu64 "\n", c-1); | |
1026 | ||
1027 | /* update display */ | |
1028 | sort_result(kvm); | |
1029 | print_result(kvm); | |
1030 | ||
1031 | /* reset counts */ | |
1032 | clear_events_cache_stats(kvm->kvm_events_cache); | |
1033 | kvm->total_count = 0; | |
1034 | kvm->total_time = 0; | |
1035 | kvm->lost_events = 0; | |
1036 | ||
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static int fd_set_nonblock(int fd) | |
1041 | { | |
1042 | long arg = 0; | |
1043 | ||
1044 | arg = fcntl(fd, F_GETFL); | |
1045 | if (arg < 0) { | |
1046 | pr_err("Failed to get current flags for fd %d\n", fd); | |
1047 | return -1; | |
1048 | } | |
1049 | ||
1050 | if (fcntl(fd, F_SETFL, arg | O_NONBLOCK) < 0) { | |
1051 | pr_err("Failed to set non-block option on fd %d\n", fd); | |
1052 | return -1; | |
1053 | } | |
1054 | ||
1055 | return 0; | |
1056 | } | |
1057 | ||
1058 | static | |
1059 | int perf_kvm__handle_stdin(struct termios *tc_now, struct termios *tc_save) | |
1060 | { | |
1061 | int c; | |
1062 | ||
1063 | tcsetattr(0, TCSANOW, tc_now); | |
1064 | c = getc(stdin); | |
1065 | tcsetattr(0, TCSAFLUSH, tc_save); | |
1066 | ||
1067 | if (c == 'q') | |
1068 | return 1; | |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | static int kvm_events_live_report(struct perf_kvm_stat *kvm) | |
1074 | { | |
1075 | struct pollfd *pollfds = NULL; | |
1076 | int nr_fds, nr_stdin, ret, err = -EINVAL; | |
1077 | struct termios tc, save; | |
1078 | ||
1079 | /* live flag must be set first */ | |
1080 | kvm->live = true; | |
1081 | ||
1082 | ret = cpu_isa_config(kvm); | |
1083 | if (ret < 0) | |
1084 | return ret; | |
1085 | ||
1086 | if (!verify_vcpu(kvm->trace_vcpu) || | |
1087 | !select_key(kvm) || | |
1088 | !register_kvm_events_ops(kvm)) { | |
1089 | goto out; | |
1090 | } | |
1091 | ||
1092 | init_kvm_event_record(kvm); | |
1093 | ||
1094 | tcgetattr(0, &save); | |
1095 | tc = save; | |
1096 | tc.c_lflag &= ~(ICANON | ECHO); | |
1097 | tc.c_cc[VMIN] = 0; | |
1098 | tc.c_cc[VTIME] = 0; | |
1099 | ||
1100 | signal(SIGINT, sig_handler); | |
1101 | signal(SIGTERM, sig_handler); | |
1102 | ||
1103 | /* copy pollfds -- need to add timerfd and stdin */ | |
1104 | nr_fds = kvm->evlist->nr_fds; | |
1105 | pollfds = zalloc(sizeof(struct pollfd) * (nr_fds + 2)); | |
1106 | if (!pollfds) { | |
1107 | err = -ENOMEM; | |
1108 | goto out; | |
1109 | } | |
1110 | memcpy(pollfds, kvm->evlist->pollfd, | |
1111 | sizeof(struct pollfd) * kvm->evlist->nr_fds); | |
1112 | ||
1113 | /* add timer fd */ | |
1114 | if (perf_kvm__timerfd_create(kvm) < 0) { | |
1115 | err = -1; | |
1116 | goto out; | |
1117 | } | |
1118 | ||
1119 | pollfds[nr_fds].fd = kvm->timerfd; | |
1120 | pollfds[nr_fds].events = POLLIN; | |
1121 | nr_fds++; | |
1122 | ||
1123 | pollfds[nr_fds].fd = fileno(stdin); | |
1124 | pollfds[nr_fds].events = POLLIN; | |
1125 | nr_stdin = nr_fds; | |
1126 | nr_fds++; | |
1127 | if (fd_set_nonblock(fileno(stdin)) != 0) | |
1128 | goto out; | |
1129 | ||
1130 | /* everything is good - enable the events and process */ | |
1131 | perf_evlist__enable(kvm->evlist); | |
1132 | ||
1133 | while (!done) { | |
1134 | int rc; | |
1135 | ||
1136 | rc = perf_kvm__mmap_read(kvm); | |
1137 | if (rc < 0) | |
1138 | break; | |
1139 | ||
1140 | err = perf_kvm__handle_timerfd(kvm); | |
1141 | if (err) | |
1142 | goto out; | |
1143 | ||
1144 | if (pollfds[nr_stdin].revents & POLLIN) | |
1145 | done = perf_kvm__handle_stdin(&tc, &save); | |
1146 | ||
1147 | if (!rc && !done) | |
1148 | err = poll(pollfds, nr_fds, 100); | |
1149 | } | |
1150 | ||
1151 | perf_evlist__disable(kvm->evlist); | |
1152 | ||
1153 | if (err == 0) { | |
1154 | sort_result(kvm); | |
1155 | print_result(kvm); | |
1156 | } | |
1157 | ||
1158 | out: | |
1159 | if (kvm->timerfd >= 0) | |
1160 | close(kvm->timerfd); | |
1161 | ||
f5385650 | 1162 | free(pollfds); |
1afe1d14 DA |
1163 | return err; |
1164 | } | |
1165 | ||
1166 | static int kvm_live_open_events(struct perf_kvm_stat *kvm) | |
1167 | { | |
1168 | int err, rc = -1; | |
1169 | struct perf_evsel *pos; | |
1170 | struct perf_evlist *evlist = kvm->evlist; | |
1171 | ||
1172 | perf_evlist__config(evlist, &kvm->opts); | |
1173 | ||
1174 | /* | |
1175 | * Note: exclude_{guest,host} do not apply here. | |
1176 | * This command processes KVM tracepoints from host only | |
1177 | */ | |
0050f7aa | 1178 | evlist__for_each(evlist, pos) { |
1afe1d14 DA |
1179 | struct perf_event_attr *attr = &pos->attr; |
1180 | ||
1181 | /* make sure these *are* set */ | |
e71aa283 AH |
1182 | perf_evsel__set_sample_bit(pos, TID); |
1183 | perf_evsel__set_sample_bit(pos, TIME); | |
1184 | perf_evsel__set_sample_bit(pos, CPU); | |
1185 | perf_evsel__set_sample_bit(pos, RAW); | |
1afe1d14 | 1186 | /* make sure these are *not*; want as small a sample as possible */ |
e71aa283 AH |
1187 | perf_evsel__reset_sample_bit(pos, PERIOD); |
1188 | perf_evsel__reset_sample_bit(pos, IP); | |
1189 | perf_evsel__reset_sample_bit(pos, CALLCHAIN); | |
1190 | perf_evsel__reset_sample_bit(pos, ADDR); | |
1191 | perf_evsel__reset_sample_bit(pos, READ); | |
1afe1d14 DA |
1192 | attr->mmap = 0; |
1193 | attr->comm = 0; | |
1194 | attr->task = 0; | |
1195 | ||
1196 | attr->sample_period = 1; | |
1197 | ||
1198 | attr->watermark = 0; | |
1199 | attr->wakeup_events = 1000; | |
1200 | ||
1201 | /* will enable all once we are ready */ | |
1202 | attr->disabled = 1; | |
1203 | } | |
1204 | ||
1205 | err = perf_evlist__open(evlist); | |
1206 | if (err < 0) { | |
1207 | printf("Couldn't create the events: %s\n", strerror(errno)); | |
1208 | goto out; | |
bcf6edcd XG |
1209 | } |
1210 | ||
1afe1d14 DA |
1211 | if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages, false) < 0) { |
1212 | ui__error("Failed to mmap the events: %s\n", strerror(errno)); | |
1213 | perf_evlist__close(evlist); | |
1214 | goto out; | |
1215 | } | |
1216 | ||
1217 | rc = 0; | |
1218 | ||
1219 | out: | |
1220 | return rc; | |
bcf6edcd | 1221 | } |
87419c9a | 1222 | #endif |
bcf6edcd | 1223 | |
3786063a | 1224 | static int read_events(struct perf_kvm_stat *kvm) |
bcf6edcd | 1225 | { |
bcf6edcd XG |
1226 | int ret; |
1227 | ||
de332ac4 DA |
1228 | struct perf_tool eops = { |
1229 | .sample = process_sample_event, | |
1230 | .comm = perf_event__process_comm, | |
1231 | .ordered_samples = true, | |
1232 | }; | |
f5fc1412 | 1233 | struct perf_data_file file = { |
476b3a86 | 1234 | .path = kvm->file_name, |
f5fc1412 JO |
1235 | .mode = PERF_DATA_MODE_READ, |
1236 | }; | |
de332ac4 DA |
1237 | |
1238 | kvm->tool = eops; | |
f5fc1412 | 1239 | kvm->session = perf_session__new(&file, false, &kvm->tool); |
de332ac4 | 1240 | if (!kvm->session) { |
bcf6edcd XG |
1241 | pr_err("Initializing perf session failed\n"); |
1242 | return -EINVAL; | |
1243 | } | |
1244 | ||
de332ac4 | 1245 | if (!perf_session__has_traces(kvm->session, "kvm record")) |
bcf6edcd XG |
1246 | return -EINVAL; |
1247 | ||
1248 | /* | |
1249 | * Do not use 'isa' recorded in kvm_exit tracepoint since it is not | |
1250 | * traced in the old kernel. | |
1251 | */ | |
1afe1d14 | 1252 | ret = cpu_isa_config(kvm); |
bcf6edcd XG |
1253 | if (ret < 0) |
1254 | return ret; | |
1255 | ||
de332ac4 | 1256 | return perf_session__process_events(kvm->session, &kvm->tool); |
bcf6edcd XG |
1257 | } |
1258 | ||
2e73f00f DA |
1259 | static int parse_target_str(struct perf_kvm_stat *kvm) |
1260 | { | |
1261 | if (kvm->pid_str) { | |
1262 | kvm->pid_list = intlist__new(kvm->pid_str); | |
1263 | if (kvm->pid_list == NULL) { | |
1264 | pr_err("Error parsing process id string\n"); | |
1265 | return -EINVAL; | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | return 0; | |
1270 | } | |
1271 | ||
3786063a | 1272 | static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm) |
bcf6edcd XG |
1273 | { |
1274 | int ret = -EINVAL; | |
de332ac4 | 1275 | int vcpu = kvm->trace_vcpu; |
bcf6edcd | 1276 | |
2e73f00f DA |
1277 | if (parse_target_str(kvm) != 0) |
1278 | goto exit; | |
1279 | ||
bcf6edcd XG |
1280 | if (!verify_vcpu(vcpu)) |
1281 | goto exit; | |
1282 | ||
de332ac4 | 1283 | if (!select_key(kvm)) |
bcf6edcd XG |
1284 | goto exit; |
1285 | ||
de332ac4 | 1286 | if (!register_kvm_events_ops(kvm)) |
bcf6edcd XG |
1287 | goto exit; |
1288 | ||
de332ac4 | 1289 | init_kvm_event_record(kvm); |
bcf6edcd XG |
1290 | setup_pager(); |
1291 | ||
de332ac4 | 1292 | ret = read_events(kvm); |
bcf6edcd XG |
1293 | if (ret) |
1294 | goto exit; | |
1295 | ||
de332ac4 DA |
1296 | sort_result(kvm); |
1297 | print_result(kvm); | |
1298 | ||
bcf6edcd XG |
1299 | exit: |
1300 | return ret; | |
1301 | } | |
1302 | ||
8fdd84c4 DA |
1303 | static const char * const kvm_events_tp[] = { |
1304 | "kvm:kvm_entry", | |
1305 | "kvm:kvm_exit", | |
1306 | "kvm:kvm_mmio", | |
1307 | "kvm:kvm_pio", | |
bcf6edcd XG |
1308 | }; |
1309 | ||
1310 | #define STRDUP_FAIL_EXIT(s) \ | |
1311 | ({ char *_p; \ | |
1312 | _p = strdup(s); \ | |
1313 | if (!_p) \ | |
1314 | return -ENOMEM; \ | |
1315 | _p; \ | |
1316 | }) | |
1317 | ||
3786063a XG |
1318 | static int |
1319 | kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) | |
bcf6edcd XG |
1320 | { |
1321 | unsigned int rec_argc, i, j; | |
1322 | const char **rec_argv; | |
8fdd84c4 DA |
1323 | const char * const record_args[] = { |
1324 | "record", | |
1325 | "-R", | |
8fdd84c4 DA |
1326 | "-m", "1024", |
1327 | "-c", "1", | |
1328 | }; | |
bcf6edcd | 1329 | |
8fdd84c4 DA |
1330 | rec_argc = ARRAY_SIZE(record_args) + argc + 2 + |
1331 | 2 * ARRAY_SIZE(kvm_events_tp); | |
bcf6edcd XG |
1332 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); |
1333 | ||
1334 | if (rec_argv == NULL) | |
1335 | return -ENOMEM; | |
1336 | ||
1337 | for (i = 0; i < ARRAY_SIZE(record_args); i++) | |
1338 | rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]); | |
1339 | ||
8fdd84c4 DA |
1340 | for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) { |
1341 | rec_argv[i++] = "-e"; | |
1342 | rec_argv[i++] = STRDUP_FAIL_EXIT(kvm_events_tp[j]); | |
1343 | } | |
1344 | ||
bcf6edcd | 1345 | rec_argv[i++] = STRDUP_FAIL_EXIT("-o"); |
de332ac4 | 1346 | rec_argv[i++] = STRDUP_FAIL_EXIT(kvm->file_name); |
bcf6edcd XG |
1347 | |
1348 | for (j = 1; j < (unsigned int)argc; j++, i++) | |
1349 | rec_argv[i] = argv[j]; | |
1350 | ||
1351 | return cmd_record(i, rec_argv, NULL); | |
1352 | } | |
1353 | ||
3786063a XG |
1354 | static int |
1355 | kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) | |
de332ac4 DA |
1356 | { |
1357 | const struct option kvm_events_report_options[] = { | |
1358 | OPT_STRING(0, "event", &kvm->report_event, "report event", | |
1359 | "event for reporting: vmexit, mmio, ioport"), | |
1360 | OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, | |
1361 | "vcpu id to report"), | |
1362 | OPT_STRING('k', "key", &kvm->sort_key, "sort-key", | |
1363 | "key for sorting: sample(sort by samples number)" | |
1364 | " time (sort by avg time)"), | |
2e73f00f DA |
1365 | OPT_STRING('p', "pid", &kvm->pid_str, "pid", |
1366 | "analyze events only for given process id(s)"), | |
de332ac4 DA |
1367 | OPT_END() |
1368 | }; | |
bcf6edcd | 1369 | |
de332ac4 DA |
1370 | const char * const kvm_events_report_usage[] = { |
1371 | "perf kvm stat report [<options>]", | |
1372 | NULL | |
1373 | }; | |
bcf6edcd | 1374 | |
bcf6edcd XG |
1375 | symbol__init(); |
1376 | ||
1377 | if (argc) { | |
1378 | argc = parse_options(argc, argv, | |
1379 | kvm_events_report_options, | |
1380 | kvm_events_report_usage, 0); | |
1381 | if (argc) | |
1382 | usage_with_options(kvm_events_report_usage, | |
1383 | kvm_events_report_options); | |
1384 | } | |
1385 | ||
de332ac4 | 1386 | return kvm_events_report_vcpu(kvm); |
bcf6edcd XG |
1387 | } |
1388 | ||
87419c9a | 1389 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
1390 | static struct perf_evlist *kvm_live_event_list(void) |
1391 | { | |
1392 | struct perf_evlist *evlist; | |
1393 | char *tp, *name, *sys; | |
1394 | unsigned int j; | |
1395 | int err = -1; | |
1396 | ||
1397 | evlist = perf_evlist__new(); | |
1398 | if (evlist == NULL) | |
1399 | return NULL; | |
1400 | ||
1401 | for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) { | |
1402 | ||
1403 | tp = strdup(kvm_events_tp[j]); | |
1404 | if (tp == NULL) | |
1405 | goto out; | |
1406 | ||
1407 | /* split tracepoint into subsystem and name */ | |
1408 | sys = tp; | |
1409 | name = strchr(tp, ':'); | |
1410 | if (name == NULL) { | |
1411 | pr_err("Error parsing %s tracepoint: subsystem delimiter not found\n", | |
1412 | kvm_events_tp[j]); | |
1413 | free(tp); | |
1414 | goto out; | |
1415 | } | |
1416 | *name = '\0'; | |
1417 | name++; | |
1418 | ||
1419 | if (perf_evlist__add_newtp(evlist, sys, name, NULL)) { | |
1420 | pr_err("Failed to add %s tracepoint to the list\n", kvm_events_tp[j]); | |
1421 | free(tp); | |
1422 | goto out; | |
1423 | } | |
1424 | ||
1425 | free(tp); | |
1426 | } | |
1427 | ||
1428 | err = 0; | |
1429 | ||
1430 | out: | |
1431 | if (err) { | |
1432 | perf_evlist__delete(evlist); | |
1433 | evlist = NULL; | |
1434 | } | |
1435 | ||
1436 | return evlist; | |
1437 | } | |
1438 | ||
1439 | static int kvm_events_live(struct perf_kvm_stat *kvm, | |
1440 | int argc, const char **argv) | |
1441 | { | |
1442 | char errbuf[BUFSIZ]; | |
1443 | int err; | |
1444 | ||
1445 | const struct option live_options[] = { | |
1446 | OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid", | |
1447 | "record events on existing process id"), | |
994a1f78 JO |
1448 | OPT_CALLBACK('m', "mmap-pages", &kvm->opts.mmap_pages, "pages", |
1449 | "number of mmap data pages", | |
1450 | perf_evlist__parse_mmap_pages), | |
1afe1d14 DA |
1451 | OPT_INCR('v', "verbose", &verbose, |
1452 | "be more verbose (show counter open errors, etc)"), | |
1453 | OPT_BOOLEAN('a', "all-cpus", &kvm->opts.target.system_wide, | |
1454 | "system-wide collection from all CPUs"), | |
1455 | OPT_UINTEGER('d', "display", &kvm->display_time, | |
1456 | "time in seconds between display updates"), | |
1457 | OPT_STRING(0, "event", &kvm->report_event, "report event", | |
1458 | "event for reporting: vmexit, mmio, ioport"), | |
1459 | OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, | |
1460 | "vcpu id to report"), | |
1461 | OPT_STRING('k', "key", &kvm->sort_key, "sort-key", | |
1462 | "key for sorting: sample(sort by samples number)" | |
1463 | " time (sort by avg time)"), | |
70f7b4a7 DA |
1464 | OPT_U64(0, "duration", &kvm->duration, |
1465 | "show events other than HALT that take longer than duration usecs"), | |
1afe1d14 DA |
1466 | OPT_END() |
1467 | }; | |
1468 | const char * const live_usage[] = { | |
1469 | "perf kvm stat live [<options>]", | |
1470 | NULL | |
1471 | }; | |
f5fc1412 JO |
1472 | struct perf_data_file file = { |
1473 | .mode = PERF_DATA_MODE_WRITE, | |
1474 | }; | |
1afe1d14 DA |
1475 | |
1476 | ||
1477 | /* event handling */ | |
1478 | kvm->tool.sample = process_sample_event; | |
1479 | kvm->tool.comm = perf_event__process_comm; | |
1480 | kvm->tool.exit = perf_event__process_exit; | |
1481 | kvm->tool.fork = perf_event__process_fork; | |
1482 | kvm->tool.lost = process_lost_event; | |
1483 | kvm->tool.ordered_samples = true; | |
1484 | perf_tool__fill_defaults(&kvm->tool); | |
1485 | ||
1486 | /* set defaults */ | |
1487 | kvm->display_time = 1; | |
1488 | kvm->opts.user_interval = 1; | |
1489 | kvm->opts.mmap_pages = 512; | |
1490 | kvm->opts.target.uses_mmap = false; | |
1491 | kvm->opts.target.uid_str = NULL; | |
1492 | kvm->opts.target.uid = UINT_MAX; | |
1493 | ||
1494 | symbol__init(); | |
1495 | disable_buildid_cache(); | |
1496 | ||
1497 | use_browser = 0; | |
1498 | setup_browser(false); | |
1499 | ||
1500 | if (argc) { | |
1501 | argc = parse_options(argc, argv, live_options, | |
1502 | live_usage, 0); | |
1503 | if (argc) | |
1504 | usage_with_options(live_usage, live_options); | |
1505 | } | |
1506 | ||
70f7b4a7 DA |
1507 | kvm->duration *= NSEC_PER_USEC; /* convert usec to nsec */ |
1508 | ||
1afe1d14 DA |
1509 | /* |
1510 | * target related setups | |
1511 | */ | |
602ad878 | 1512 | err = target__validate(&kvm->opts.target); |
1afe1d14 | 1513 | if (err) { |
602ad878 | 1514 | target__strerror(&kvm->opts.target, err, errbuf, BUFSIZ); |
1afe1d14 DA |
1515 | ui__warning("%s", errbuf); |
1516 | } | |
1517 | ||
602ad878 | 1518 | if (target__none(&kvm->opts.target)) |
1afe1d14 DA |
1519 | kvm->opts.target.system_wide = true; |
1520 | ||
1521 | ||
1522 | /* | |
1523 | * generate the event list | |
1524 | */ | |
1525 | kvm->evlist = kvm_live_event_list(); | |
1526 | if (kvm->evlist == NULL) { | |
1527 | err = -1; | |
1528 | goto out; | |
1529 | } | |
1530 | ||
1531 | symbol_conf.nr_events = kvm->evlist->nr_entries; | |
1532 | ||
1533 | if (perf_evlist__create_maps(kvm->evlist, &kvm->opts.target) < 0) | |
1534 | usage_with_options(live_usage, live_options); | |
1535 | ||
1536 | /* | |
1537 | * perf session | |
1538 | */ | |
f5fc1412 | 1539 | kvm->session = perf_session__new(&file, false, &kvm->tool); |
1afe1d14 DA |
1540 | if (kvm->session == NULL) { |
1541 | err = -ENOMEM; | |
1542 | goto out; | |
1543 | } | |
1544 | kvm->session->evlist = kvm->evlist; | |
1545 | perf_session__set_id_hdr_size(kvm->session); | |
a33fbd56 ACM |
1546 | machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target, |
1547 | kvm->evlist->threads, false); | |
1afe1d14 DA |
1548 | err = kvm_live_open_events(kvm); |
1549 | if (err) | |
1550 | goto out; | |
1551 | ||
1552 | err = kvm_events_live_report(kvm); | |
1553 | ||
1554 | out: | |
1555 | exit_browser(0); | |
1556 | ||
1557 | if (kvm->session) | |
1558 | perf_session__delete(kvm->session); | |
1559 | kvm->session = NULL; | |
03ad9747 | 1560 | if (kvm->evlist) |
1afe1d14 | 1561 | perf_evlist__delete(kvm->evlist); |
1afe1d14 DA |
1562 | |
1563 | return err; | |
1564 | } | |
87419c9a | 1565 | #endif |
1afe1d14 | 1566 | |
bcf6edcd XG |
1567 | static void print_kvm_stat_usage(void) |
1568 | { | |
1569 | printf("Usage: perf kvm stat <command>\n\n"); | |
1570 | ||
1571 | printf("# Available commands:\n"); | |
1572 | printf("\trecord: record kvm events\n"); | |
1573 | printf("\treport: report statistical data of kvm events\n"); | |
1afe1d14 | 1574 | printf("\tlive: live reporting of statistical data of kvm events\n"); |
bcf6edcd XG |
1575 | |
1576 | printf("\nOtherwise, it is the alias of 'perf stat':\n"); | |
1577 | } | |
1578 | ||
3786063a | 1579 | static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) |
bcf6edcd | 1580 | { |
3786063a XG |
1581 | struct perf_kvm_stat kvm = { |
1582 | .file_name = file_name, | |
1583 | ||
1584 | .trace_vcpu = -1, | |
1585 | .report_event = "vmexit", | |
1586 | .sort_key = "sample", | |
1587 | ||
1588 | .exit_reasons = svm_exit_reasons, | |
1589 | .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons), | |
1590 | .exit_reasons_isa = "SVM", | |
1591 | }; | |
1592 | ||
bcf6edcd XG |
1593 | if (argc == 1) { |
1594 | print_kvm_stat_usage(); | |
1595 | goto perf_stat; | |
1596 | } | |
1597 | ||
1598 | if (!strncmp(argv[1], "rec", 3)) | |
3786063a | 1599 | return kvm_events_record(&kvm, argc - 1, argv + 1); |
bcf6edcd XG |
1600 | |
1601 | if (!strncmp(argv[1], "rep", 3)) | |
3786063a | 1602 | return kvm_events_report(&kvm, argc - 1 , argv + 1); |
bcf6edcd | 1603 | |
87419c9a | 1604 | #ifdef HAVE_TIMERFD_SUPPORT |
1afe1d14 DA |
1605 | if (!strncmp(argv[1], "live", 4)) |
1606 | return kvm_events_live(&kvm, argc - 1 , argv + 1); | |
87419c9a | 1607 | #endif |
1afe1d14 | 1608 | |
bcf6edcd XG |
1609 | perf_stat: |
1610 | return cmd_stat(argc, argv, NULL); | |
1611 | } | |
7321090f | 1612 | #endif |
bcf6edcd | 1613 | |
3786063a | 1614 | static int __cmd_record(const char *file_name, int argc, const char **argv) |
a1645ce1 ZY |
1615 | { |
1616 | int rec_argc, i = 0, j; | |
1617 | const char **rec_argv; | |
1618 | ||
1619 | rec_argc = argc + 2; | |
1620 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1621 | rec_argv[i++] = strdup("record"); | |
1622 | rec_argv[i++] = strdup("-o"); | |
3786063a | 1623 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1624 | for (j = 1; j < argc; j++, i++) |
1625 | rec_argv[i] = argv[j]; | |
1626 | ||
1627 | BUG_ON(i != rec_argc); | |
1628 | ||
1629 | return cmd_record(i, rec_argv, NULL); | |
1630 | } | |
1631 | ||
3786063a | 1632 | static int __cmd_report(const char *file_name, int argc, const char **argv) |
a1645ce1 ZY |
1633 | { |
1634 | int rec_argc, i = 0, j; | |
1635 | const char **rec_argv; | |
1636 | ||
1637 | rec_argc = argc + 2; | |
1638 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1639 | rec_argv[i++] = strdup("report"); | |
1640 | rec_argv[i++] = strdup("-i"); | |
3786063a | 1641 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1642 | for (j = 1; j < argc; j++, i++) |
1643 | rec_argv[i] = argv[j]; | |
1644 | ||
1645 | BUG_ON(i != rec_argc); | |
1646 | ||
1647 | return cmd_report(i, rec_argv, NULL); | |
1648 | } | |
1649 | ||
3786063a XG |
1650 | static int |
1651 | __cmd_buildid_list(const char *file_name, int argc, const char **argv) | |
a1645ce1 ZY |
1652 | { |
1653 | int rec_argc, i = 0, j; | |
1654 | const char **rec_argv; | |
1655 | ||
1656 | rec_argc = argc + 2; | |
1657 | rec_argv = calloc(rec_argc + 1, sizeof(char *)); | |
1658 | rec_argv[i++] = strdup("buildid-list"); | |
1659 | rec_argv[i++] = strdup("-i"); | |
3786063a | 1660 | rec_argv[i++] = strdup(file_name); |
a1645ce1 ZY |
1661 | for (j = 1; j < argc; j++, i++) |
1662 | rec_argv[i] = argv[j]; | |
1663 | ||
1664 | BUG_ON(i != rec_argc); | |
1665 | ||
1666 | return cmd_buildid_list(i, rec_argv, NULL); | |
1667 | } | |
1668 | ||
1d037ca1 | 1669 | int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) |
a1645ce1 | 1670 | { |
20914ce5 | 1671 | const char *file_name = NULL; |
de332ac4 | 1672 | const struct option kvm_options[] = { |
3786063a | 1673 | OPT_STRING('i', "input", &file_name, "file", |
de332ac4 | 1674 | "Input file name"), |
3786063a | 1675 | OPT_STRING('o', "output", &file_name, "file", |
de332ac4 DA |
1676 | "Output file name"), |
1677 | OPT_BOOLEAN(0, "guest", &perf_guest, | |
1678 | "Collect guest os data"), | |
1679 | OPT_BOOLEAN(0, "host", &perf_host, | |
1680 | "Collect host os data"), | |
1681 | OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory", | |
1682 | "guest mount directory under which every guest os" | |
1683 | " instance has a subdir"), | |
1684 | OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name, | |
1685 | "file", "file saving guest os vmlinux"), | |
1686 | OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms, | |
1687 | "file", "file saving guest os /proc/kallsyms"), | |
1688 | OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, | |
1689 | "file", "file saving guest os /proc/modules"), | |
100b9073 DY |
1690 | OPT_INCR('v', "verbose", &verbose, |
1691 | "be more verbose (show counter open errors, etc)"), | |
de332ac4 DA |
1692 | OPT_END() |
1693 | }; | |
1694 | ||
09a71b97 RR |
1695 | const char *const kvm_subcommands[] = { "top", "record", "report", "diff", |
1696 | "buildid-list", "stat", NULL }; | |
1697 | const char *kvm_usage[] = { NULL, NULL }; | |
de332ac4 | 1698 | |
1aed2671 JR |
1699 | perf_host = 0; |
1700 | perf_guest = 1; | |
a1645ce1 | 1701 | |
09a71b97 RR |
1702 | argc = parse_options_subcommand(argc, argv, kvm_options, kvm_subcommands, kvm_usage, |
1703 | PARSE_OPT_STOP_AT_NON_OPTION); | |
a1645ce1 ZY |
1704 | if (!argc) |
1705 | usage_with_options(kvm_usage, kvm_options); | |
1706 | ||
1707 | if (!perf_host) | |
1708 | perf_guest = 1; | |
1709 | ||
3786063a | 1710 | if (!file_name) { |
e1a2b174 | 1711 | file_name = get_filename_for_perf_kvm(); |
de332ac4 | 1712 | |
3786063a | 1713 | if (!file_name) { |
de332ac4 DA |
1714 | pr_err("Failed to allocate memory for filename\n"); |
1715 | return -ENOMEM; | |
1716 | } | |
a1645ce1 ZY |
1717 | } |
1718 | ||
1719 | if (!strncmp(argv[0], "rec", 3)) | |
3786063a | 1720 | return __cmd_record(file_name, argc, argv); |
a1645ce1 | 1721 | else if (!strncmp(argv[0], "rep", 3)) |
3786063a | 1722 | return __cmd_report(file_name, argc, argv); |
a1645ce1 ZY |
1723 | else if (!strncmp(argv[0], "diff", 4)) |
1724 | return cmd_diff(argc, argv, NULL); | |
1725 | else if (!strncmp(argv[0], "top", 3)) | |
1726 | return cmd_top(argc, argv, NULL); | |
1727 | else if (!strncmp(argv[0], "buildid-list", 12)) | |
3786063a | 1728 | return __cmd_buildid_list(file_name, argc, argv); |
7321090f | 1729 | #if defined(__i386__) || defined(__x86_64__) |
bcf6edcd | 1730 | else if (!strncmp(argv[0], "stat", 4)) |
3786063a | 1731 | return kvm_cmd_stat(file_name, argc, argv); |
7321090f | 1732 | #endif |
a1645ce1 ZY |
1733 | else |
1734 | usage_with_options(kvm_usage, kvm_options); | |
1735 | ||
1736 | return 0; | |
1737 | } |