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Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001#include "builtin.h"
2#include "perf.h"
3
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +08004#include "util/evsel.h"
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08005#include "util/util.h"
6#include "util/cache.h"
7#include "util/symbol.h"
8#include "util/thread.h"
9#include "util/header.h"
10#include "util/session.h"
11
12#include "util/parse-options.h"
13#include "util/trace-event.h"
Zhang, Yanmina1645ce2010-04-19 13:32:50 +080014#include "util/debug.h"
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +080015#include "util/debugfs.h"
16#include "util/tool.h"
17#include "util/stat.h"
Zhang, Yanmina1645ce2010-04-19 13:32:50 +080018
19#include <sys/prctl.h>
20
21#include <semaphore.h>
22#include <pthread.h>
23#include <math.h>
24
Xiao Guangrong73210902012-11-19 16:19:21 +080025#if defined(__i386__) || defined(__x86_64__)
David Howellsd2709c72012-11-19 22:21:03 +000026#include <asm/svm.h>
27#include <asm/vmx.h>
28#include <asm/kvm.h>
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +080029
30struct event_key {
31 #define INVALID_KEY (~0ULL)
32 u64 key;
33 int info;
34};
35
David Ahernde332ac2012-10-02 22:09:53 -060036struct kvm_event_stats {
37 u64 time;
38 struct stats stats;
39};
40
41struct kvm_event {
42 struct list_head hash_entry;
43 struct rb_node rb;
44
45 struct event_key key;
46
47 struct kvm_event_stats total;
48
49 #define DEFAULT_VCPU_NUM 8
50 int max_vcpu;
51 struct kvm_event_stats *vcpu;
52};
53
54typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int);
55
56struct kvm_event_key {
57 const char *name;
58 key_cmp_fun key;
59};
60
61
Xiao Guangrong37860632012-11-15 14:17:01 +080062struct perf_kvm_stat;
David Ahernde332ac2012-10-02 22:09:53 -060063
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +080064struct kvm_events_ops {
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -030065 bool (*is_begin_event)(struct perf_evsel *evsel,
66 struct perf_sample *sample,
67 struct event_key *key);
68 bool (*is_end_event)(struct perf_evsel *evsel,
69 struct perf_sample *sample, struct event_key *key);
Xiao Guangrong37860632012-11-15 14:17:01 +080070 void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key,
David Ahernde332ac2012-10-02 22:09:53 -060071 char decode[20]);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +080072 const char *name;
73};
74
David Ahernde332ac2012-10-02 22:09:53 -060075struct exit_reasons_table {
76 unsigned long exit_code;
77 const char *reason;
78};
79
80#define EVENTS_BITS 12
81#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS)
82
Xiao Guangrong37860632012-11-15 14:17:01 +080083struct perf_kvm_stat {
David Ahernde332ac2012-10-02 22:09:53 -060084 struct perf_tool tool;
85 struct perf_session *session;
86
87 const char *file_name;
88 const char *report_event;
89 const char *sort_key;
90 int trace_vcpu;
91
92 struct exit_reasons_table *exit_reasons;
93 int exit_reasons_size;
94 const char *exit_reasons_isa;
95
96 struct kvm_events_ops *events_ops;
97 key_cmp_fun compare;
98 struct list_head kvm_events_cache[EVENTS_CACHE_SIZE];
99 u64 total_time;
100 u64 total_count;
101
102 struct rb_root result;
103};
104
105
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300106static void exit_event_get_key(struct perf_evsel *evsel,
107 struct perf_sample *sample,
108 struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800109{
110 key->info = 0;
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300111 key->key = perf_evsel__intval(evsel, sample, "exit_reason");
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800112}
113
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300114static bool kvm_exit_event(struct perf_evsel *evsel)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800115{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300116 return !strcmp(evsel->name, "kvm:kvm_exit");
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800117}
118
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300119static bool exit_event_begin(struct perf_evsel *evsel,
120 struct perf_sample *sample, struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800121{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300122 if (kvm_exit_event(evsel)) {
123 exit_event_get_key(evsel, sample, key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800124 return true;
125 }
126
127 return false;
128}
129
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300130static bool kvm_entry_event(struct perf_evsel *evsel)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800131{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300132 return !strcmp(evsel->name, "kvm:kvm_entry");
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800133}
134
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300135static bool exit_event_end(struct perf_evsel *evsel,
136 struct perf_sample *sample __maybe_unused,
137 struct event_key *key __maybe_unused)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800138{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300139 return kvm_entry_event(evsel);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800140}
141
David Ahernde332ac2012-10-02 22:09:53 -0600142static struct exit_reasons_table vmx_exit_reasons[] = {
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800143 VMX_EXIT_REASONS
144};
145
David Ahernde332ac2012-10-02 22:09:53 -0600146static struct exit_reasons_table svm_exit_reasons[] = {
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800147 SVM_EXIT_REASONS
148};
149
Xiao Guangrong37860632012-11-15 14:17:01 +0800150static const char *get_exit_reason(struct perf_kvm_stat *kvm, u64 exit_code)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800151{
David Ahernde332ac2012-10-02 22:09:53 -0600152 int i = kvm->exit_reasons_size;
153 struct exit_reasons_table *tbl = kvm->exit_reasons;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800154
David Ahernde332ac2012-10-02 22:09:53 -0600155 while (i--) {
156 if (tbl->exit_code == exit_code)
157 return tbl->reason;
158 tbl++;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800159 }
160
161 pr_err("unknown kvm exit code:%lld on %s\n",
David Ahernde332ac2012-10-02 22:09:53 -0600162 (unsigned long long)exit_code, kvm->exit_reasons_isa);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800163 return "UNKNOWN";
164}
165
Xiao Guangrong37860632012-11-15 14:17:01 +0800166static void exit_event_decode_key(struct perf_kvm_stat *kvm,
David Ahernde332ac2012-10-02 22:09:53 -0600167 struct event_key *key,
168 char decode[20])
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800169{
David Ahernde332ac2012-10-02 22:09:53 -0600170 const char *exit_reason = get_exit_reason(kvm, key->key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800171
172 scnprintf(decode, 20, "%s", exit_reason);
173}
174
175static struct kvm_events_ops exit_events = {
176 .is_begin_event = exit_event_begin,
177 .is_end_event = exit_event_end,
178 .decode_key = exit_event_decode_key,
179 .name = "VM-EXIT"
180};
181
David Ahernde332ac2012-10-02 22:09:53 -0600182/*
183 * For the mmio events, we treat:
184 * the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry
185 * the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...).
186 */
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300187static void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample,
188 struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800189{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300190 key->key = perf_evsel__intval(evsel, sample, "gpa");
191 key->info = perf_evsel__intval(evsel, sample, "type");
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800192}
193
194#define KVM_TRACE_MMIO_READ_UNSATISFIED 0
195#define KVM_TRACE_MMIO_READ 1
196#define KVM_TRACE_MMIO_WRITE 2
197
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300198static bool mmio_event_begin(struct perf_evsel *evsel,
199 struct perf_sample *sample, struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800200{
201 /* MMIO read begin event in kernel. */
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300202 if (kvm_exit_event(evsel))
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800203 return true;
204
205 /* MMIO write begin event in kernel. */
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300206 if (!strcmp(evsel->name, "kvm:kvm_mmio") &&
207 perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_WRITE) {
208 mmio_event_get_key(evsel, sample, key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800209 return true;
210 }
211
212 return false;
213}
214
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300215static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample,
216 struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800217{
218 /* MMIO write end event in kernel. */
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300219 if (kvm_entry_event(evsel))
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800220 return true;
221
222 /* MMIO read end event in kernel.*/
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300223 if (!strcmp(evsel->name, "kvm:kvm_mmio") &&
224 perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_READ) {
225 mmio_event_get_key(evsel, sample, key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800226 return true;
227 }
228
229 return false;
230}
231
Xiao Guangrong37860632012-11-15 14:17:01 +0800232static void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
David Ahernde332ac2012-10-02 22:09:53 -0600233 struct event_key *key,
234 char decode[20])
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800235{
236 scnprintf(decode, 20, "%#lx:%s", (unsigned long)key->key,
237 key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R");
238}
239
240static struct kvm_events_ops mmio_events = {
241 .is_begin_event = mmio_event_begin,
242 .is_end_event = mmio_event_end,
243 .decode_key = mmio_event_decode_key,
244 .name = "MMIO Access"
245};
246
247 /* The time of emulation pio access is from kvm_pio to kvm_entry. */
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300248static void ioport_event_get_key(struct perf_evsel *evsel,
249 struct perf_sample *sample,
250 struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800251{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300252 key->key = perf_evsel__intval(evsel, sample, "port");
253 key->info = perf_evsel__intval(evsel, sample, "rw");
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800254}
255
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300256static bool ioport_event_begin(struct perf_evsel *evsel,
257 struct perf_sample *sample,
258 struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800259{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300260 if (!strcmp(evsel->name, "kvm:kvm_pio")) {
261 ioport_event_get_key(evsel, sample, key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800262 return true;
263 }
264
265 return false;
266}
267
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300268static bool ioport_event_end(struct perf_evsel *evsel,
269 struct perf_sample *sample __maybe_unused,
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800270 struct event_key *key __maybe_unused)
271{
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300272 return kvm_entry_event(evsel);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800273}
274
Xiao Guangrong37860632012-11-15 14:17:01 +0800275static void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused,
David Ahernde332ac2012-10-02 22:09:53 -0600276 struct event_key *key,
277 char decode[20])
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800278{
279 scnprintf(decode, 20, "%#llx:%s", (unsigned long long)key->key,
280 key->info ? "POUT" : "PIN");
281}
282
283static struct kvm_events_ops ioport_events = {
284 .is_begin_event = ioport_event_begin,
285 .is_end_event = ioport_event_end,
286 .decode_key = ioport_event_decode_key,
287 .name = "IO Port Access"
288};
289
Xiao Guangrong37860632012-11-15 14:17:01 +0800290static bool register_kvm_events_ops(struct perf_kvm_stat *kvm)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800291{
292 bool ret = true;
293
David Ahernde332ac2012-10-02 22:09:53 -0600294 if (!strcmp(kvm->report_event, "vmexit"))
295 kvm->events_ops = &exit_events;
296 else if (!strcmp(kvm->report_event, "mmio"))
297 kvm->events_ops = &mmio_events;
298 else if (!strcmp(kvm->report_event, "ioport"))
299 kvm->events_ops = &ioport_events;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800300 else {
David Ahernde332ac2012-10-02 22:09:53 -0600301 pr_err("Unknown report event:%s\n", kvm->report_event);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800302 ret = false;
303 }
304
305 return ret;
306}
307
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800308struct vcpu_event_record {
309 int vcpu_id;
310 u64 start_time;
311 struct kvm_event *last_event;
312};
313
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800314
Xiao Guangrong37860632012-11-15 14:17:01 +0800315static void init_kvm_event_record(struct perf_kvm_stat *kvm)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800316{
David Ahernb880dee2012-10-08 11:17:30 -0600317 unsigned int i;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800318
David Ahernb880dee2012-10-08 11:17:30 -0600319 for (i = 0; i < EVENTS_CACHE_SIZE; i++)
David Ahernde332ac2012-10-02 22:09:53 -0600320 INIT_LIST_HEAD(&kvm->kvm_events_cache[i]);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800321}
322
323static int kvm_events_hash_fn(u64 key)
324{
325 return key & (EVENTS_CACHE_SIZE - 1);
326}
327
328static bool kvm_event_expand(struct kvm_event *event, int vcpu_id)
329{
330 int old_max_vcpu = event->max_vcpu;
331
332 if (vcpu_id < event->max_vcpu)
333 return true;
334
335 while (event->max_vcpu <= vcpu_id)
336 event->max_vcpu += DEFAULT_VCPU_NUM;
337
338 event->vcpu = realloc(event->vcpu,
339 event->max_vcpu * sizeof(*event->vcpu));
340 if (!event->vcpu) {
341 pr_err("Not enough memory\n");
342 return false;
343 }
344
345 memset(event->vcpu + old_max_vcpu, 0,
346 (event->max_vcpu - old_max_vcpu) * sizeof(*event->vcpu));
347 return true;
348}
349
350static struct kvm_event *kvm_alloc_init_event(struct event_key *key)
351{
352 struct kvm_event *event;
353
354 event = zalloc(sizeof(*event));
355 if (!event) {
356 pr_err("Not enough memory\n");
357 return NULL;
358 }
359
360 event->key = *key;
361 return event;
362}
363
Xiao Guangrong37860632012-11-15 14:17:01 +0800364static struct kvm_event *find_create_kvm_event(struct perf_kvm_stat *kvm,
David Ahernde332ac2012-10-02 22:09:53 -0600365 struct event_key *key)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800366{
367 struct kvm_event *event;
368 struct list_head *head;
369
370 BUG_ON(key->key == INVALID_KEY);
371
David Ahernde332ac2012-10-02 22:09:53 -0600372 head = &kvm->kvm_events_cache[kvm_events_hash_fn(key->key)];
David Ahern355afe82012-10-08 11:17:32 -0600373 list_for_each_entry(event, head, hash_entry) {
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800374 if (event->key.key == key->key && event->key.info == key->info)
375 return event;
David Ahern355afe82012-10-08 11:17:32 -0600376 }
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800377
378 event = kvm_alloc_init_event(key);
379 if (!event)
380 return NULL;
381
382 list_add(&event->hash_entry, head);
383 return event;
384}
385
Xiao Guangrong37860632012-11-15 14:17:01 +0800386static bool handle_begin_event(struct perf_kvm_stat *kvm,
David Ahernde332ac2012-10-02 22:09:53 -0600387 struct vcpu_event_record *vcpu_record,
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800388 struct event_key *key, u64 timestamp)
389{
390 struct kvm_event *event = NULL;
391
392 if (key->key != INVALID_KEY)
David Ahernde332ac2012-10-02 22:09:53 -0600393 event = find_create_kvm_event(kvm, key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800394
395 vcpu_record->last_event = event;
396 vcpu_record->start_time = timestamp;
397 return true;
398}
399
400static void
401kvm_update_event_stats(struct kvm_event_stats *kvm_stats, u64 time_diff)
402{
403 kvm_stats->time += time_diff;
404 update_stats(&kvm_stats->stats, time_diff);
405}
406
407static double kvm_event_rel_stddev(int vcpu_id, struct kvm_event *event)
408{
409 struct kvm_event_stats *kvm_stats = &event->total;
410
411 if (vcpu_id != -1)
412 kvm_stats = &event->vcpu[vcpu_id];
413
414 return rel_stddev_stats(stddev_stats(&kvm_stats->stats),
415 avg_stats(&kvm_stats->stats));
416}
417
418static bool update_kvm_event(struct kvm_event *event, int vcpu_id,
419 u64 time_diff)
420{
David Ahern2aa8eab2012-10-08 11:17:35 -0600421 if (vcpu_id == -1) {
422 kvm_update_event_stats(&event->total, time_diff);
423 return true;
424 }
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800425
426 if (!kvm_event_expand(event, vcpu_id))
427 return false;
428
429 kvm_update_event_stats(&event->vcpu[vcpu_id], time_diff);
430 return true;
431}
432
Xiao Guangrong37860632012-11-15 14:17:01 +0800433static bool handle_end_event(struct perf_kvm_stat *kvm,
David Ahernde332ac2012-10-02 22:09:53 -0600434 struct vcpu_event_record *vcpu_record,
435 struct event_key *key,
436 u64 timestamp)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800437{
438 struct kvm_event *event;
439 u64 time_begin, time_diff;
David Ahern2aa8eab2012-10-08 11:17:35 -0600440 int vcpu;
441
442 if (kvm->trace_vcpu == -1)
443 vcpu = -1;
444 else
445 vcpu = vcpu_record->vcpu_id;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800446
447 event = vcpu_record->last_event;
448 time_begin = vcpu_record->start_time;
449
450 /* The begin event is not caught. */
451 if (!time_begin)
452 return true;
453
454 /*
455 * In some case, the 'begin event' only records the start timestamp,
456 * the actual event is recognized in the 'end event' (e.g. mmio-event).
457 */
458
459 /* Both begin and end events did not get the key. */
460 if (!event && key->key == INVALID_KEY)
461 return true;
462
463 if (!event)
David Ahernde332ac2012-10-02 22:09:53 -0600464 event = find_create_kvm_event(kvm, key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800465
466 if (!event)
467 return false;
468
469 vcpu_record->last_event = NULL;
470 vcpu_record->start_time = 0;
471
472 BUG_ON(timestamp < time_begin);
473
474 time_diff = timestamp - time_begin;
David Ahern2aa8eab2012-10-08 11:17:35 -0600475 return update_kvm_event(event, vcpu, time_diff);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800476}
477
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300478static
479struct vcpu_event_record *per_vcpu_record(struct thread *thread,
480 struct perf_evsel *evsel,
481 struct perf_sample *sample)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800482{
483 /* Only kvm_entry records vcpu id. */
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300484 if (!thread->priv && kvm_entry_event(evsel)) {
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800485 struct vcpu_event_record *vcpu_record;
486
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300487 vcpu_record = zalloc(sizeof(*vcpu_record));
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800488 if (!vcpu_record) {
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300489 pr_err("%s: Not enough memory\n", __func__);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800490 return NULL;
491 }
492
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300493 vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, "vcpu_id");
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800494 thread->priv = vcpu_record;
495 }
496
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300497 return thread->priv;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800498}
499
Xiao Guangrong37860632012-11-15 14:17:01 +0800500static bool handle_kvm_event(struct perf_kvm_stat *kvm,
David Ahernde332ac2012-10-02 22:09:53 -0600501 struct thread *thread,
502 struct perf_evsel *evsel,
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300503 struct perf_sample *sample)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800504{
505 struct vcpu_event_record *vcpu_record;
506 struct event_key key = {.key = INVALID_KEY};
507
Arnaldo Carvalho de Melo14907e72012-09-21 16:10:26 -0300508 vcpu_record = per_vcpu_record(thread, evsel, sample);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800509 if (!vcpu_record)
510 return true;
511
David Ahern2aa8eab2012-10-08 11:17:35 -0600512 /* only process events for vcpus user cares about */
513 if ((kvm->trace_vcpu != -1) &&
514 (kvm->trace_vcpu != vcpu_record->vcpu_id))
515 return true;
516
David Ahernde332ac2012-10-02 22:09:53 -0600517 if (kvm->events_ops->is_begin_event(evsel, sample, &key))
518 return handle_begin_event(kvm, vcpu_record, &key, sample->time);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800519
David Ahernde332ac2012-10-02 22:09:53 -0600520 if (kvm->events_ops->is_end_event(evsel, sample, &key))
521 return handle_end_event(kvm, vcpu_record, &key, sample->time);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800522
523 return true;
524}
525
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800526#define GET_EVENT_KEY(func, field) \
527static u64 get_event_ ##func(struct kvm_event *event, int vcpu) \
528{ \
529 if (vcpu == -1) \
530 return event->total.field; \
531 \
532 if (vcpu >= event->max_vcpu) \
533 return 0; \
534 \
535 return event->vcpu[vcpu].field; \
536}
537
538#define COMPARE_EVENT_KEY(func, field) \
539GET_EVENT_KEY(func, field) \
540static int compare_kvm_event_ ## func(struct kvm_event *one, \
541 struct kvm_event *two, int vcpu)\
542{ \
543 return get_event_ ##func(one, vcpu) > \
544 get_event_ ##func(two, vcpu); \
545}
546
547GET_EVENT_KEY(time, time);
548COMPARE_EVENT_KEY(count, stats.n);
549COMPARE_EVENT_KEY(mean, stats.mean);
550
551#define DEF_SORT_NAME_KEY(name, compare_key) \
552 { #name, compare_kvm_event_ ## compare_key }
553
554static struct kvm_event_key keys[] = {
555 DEF_SORT_NAME_KEY(sample, count),
556 DEF_SORT_NAME_KEY(time, mean),
557 { NULL, NULL }
558};
559
Xiao Guangrong37860632012-11-15 14:17:01 +0800560static bool select_key(struct perf_kvm_stat *kvm)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800561{
562 int i;
563
564 for (i = 0; keys[i].name; i++) {
David Ahernde332ac2012-10-02 22:09:53 -0600565 if (!strcmp(keys[i].name, kvm->sort_key)) {
566 kvm->compare = keys[i].key;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800567 return true;
568 }
569 }
570
David Ahernde332ac2012-10-02 22:09:53 -0600571 pr_err("Unknown compare key:%s\n", kvm->sort_key);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800572 return false;
573}
574
David Ahernde332ac2012-10-02 22:09:53 -0600575static void insert_to_result(struct rb_root *result, struct kvm_event *event,
576 key_cmp_fun bigger, int vcpu)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800577{
David Ahernde332ac2012-10-02 22:09:53 -0600578 struct rb_node **rb = &result->rb_node;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800579 struct rb_node *parent = NULL;
580 struct kvm_event *p;
581
582 while (*rb) {
583 p = container_of(*rb, struct kvm_event, rb);
584 parent = *rb;
585
586 if (bigger(event, p, vcpu))
587 rb = &(*rb)->rb_left;
588 else
589 rb = &(*rb)->rb_right;
590 }
591
592 rb_link_node(&event->rb, parent, rb);
David Ahernde332ac2012-10-02 22:09:53 -0600593 rb_insert_color(&event->rb, result);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800594}
595
Xiao Guangrong37860632012-11-15 14:17:01 +0800596static void
597update_total_count(struct perf_kvm_stat *kvm, struct kvm_event *event)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800598{
David Ahernde332ac2012-10-02 22:09:53 -0600599 int vcpu = kvm->trace_vcpu;
600
601 kvm->total_count += get_event_count(event, vcpu);
602 kvm->total_time += get_event_time(event, vcpu);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800603}
604
605static bool event_is_valid(struct kvm_event *event, int vcpu)
606{
607 return !!get_event_count(event, vcpu);
608}
609
Xiao Guangrong37860632012-11-15 14:17:01 +0800610static void sort_result(struct perf_kvm_stat *kvm)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800611{
612 unsigned int i;
David Ahernde332ac2012-10-02 22:09:53 -0600613 int vcpu = kvm->trace_vcpu;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800614 struct kvm_event *event;
615
David Ahern355afe82012-10-08 11:17:32 -0600616 for (i = 0; i < EVENTS_CACHE_SIZE; i++) {
617 list_for_each_entry(event, &kvm->kvm_events_cache[i], hash_entry) {
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800618 if (event_is_valid(event, vcpu)) {
David Ahernde332ac2012-10-02 22:09:53 -0600619 update_total_count(kvm, event);
620 insert_to_result(&kvm->result, event,
621 kvm->compare, vcpu);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800622 }
David Ahern355afe82012-10-08 11:17:32 -0600623 }
624 }
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800625}
626
627/* returns left most element of result, and erase it */
David Ahernde332ac2012-10-02 22:09:53 -0600628static struct kvm_event *pop_from_result(struct rb_root *result)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800629{
David Ahernde332ac2012-10-02 22:09:53 -0600630 struct rb_node *node = rb_first(result);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800631
632 if (!node)
633 return NULL;
634
David Ahernde332ac2012-10-02 22:09:53 -0600635 rb_erase(node, result);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800636 return container_of(node, struct kvm_event, rb);
637}
638
639static void print_vcpu_info(int vcpu)
640{
641 pr_info("Analyze events for ");
642
643 if (vcpu == -1)
644 pr_info("all VCPUs:\n\n");
645 else
646 pr_info("VCPU %d:\n\n", vcpu);
647}
648
Xiao Guangrong37860632012-11-15 14:17:01 +0800649static void print_result(struct perf_kvm_stat *kvm)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800650{
651 char decode[20];
652 struct kvm_event *event;
David Ahernde332ac2012-10-02 22:09:53 -0600653 int vcpu = kvm->trace_vcpu;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800654
655 pr_info("\n\n");
656 print_vcpu_info(vcpu);
David Ahernde332ac2012-10-02 22:09:53 -0600657 pr_info("%20s ", kvm->events_ops->name);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800658 pr_info("%10s ", "Samples");
659 pr_info("%9s ", "Samples%");
660
661 pr_info("%9s ", "Time%");
662 pr_info("%16s ", "Avg time");
663 pr_info("\n\n");
664
David Ahernde332ac2012-10-02 22:09:53 -0600665 while ((event = pop_from_result(&kvm->result))) {
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800666 u64 ecount, etime;
667
668 ecount = get_event_count(event, vcpu);
669 etime = get_event_time(event, vcpu);
670
David Ahernde332ac2012-10-02 22:09:53 -0600671 kvm->events_ops->decode_key(kvm, &event->key, decode);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800672 pr_info("%20s ", decode);
673 pr_info("%10llu ", (unsigned long long)ecount);
David Ahernde332ac2012-10-02 22:09:53 -0600674 pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100);
675 pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800676 pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3,
677 kvm_event_rel_stddev(vcpu, event));
678 pr_info("\n");
679 }
680
David Aherne4f76372012-10-08 11:17:34 -0600681 pr_info("\nTotal Samples:%" PRIu64 ", Total events handled time:%.2fus.\n\n",
682 kvm->total_count, kvm->total_time / 1e3);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800683}
684
David Ahernde332ac2012-10-02 22:09:53 -0600685static int process_sample_event(struct perf_tool *tool,
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800686 union perf_event *event,
687 struct perf_sample *sample,
688 struct perf_evsel *evsel,
689 struct machine *machine)
690{
691 struct thread *thread = machine__findnew_thread(machine, sample->tid);
Xiao Guangrong37860632012-11-15 14:17:01 +0800692 struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat,
693 tool);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800694
695 if (thread == NULL) {
696 pr_debug("problem processing %d event, skipping it.\n",
697 event->header.type);
698 return -1;
699 }
700
David Ahernde332ac2012-10-02 22:09:53 -0600701 if (!handle_kvm_event(kvm, thread, evsel, sample))
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800702 return -1;
703
704 return 0;
705}
706
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800707static int get_cpu_isa(struct perf_session *session)
708{
Namhyung Kim2f9e97a2012-09-24 17:15:02 +0900709 char *cpuid = session->header.env.cpuid;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800710 int isa;
711
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800712 if (strstr(cpuid, "Intel"))
713 isa = 1;
714 else if (strstr(cpuid, "AMD"))
715 isa = 0;
716 else {
717 pr_err("CPU %s is not supported.\n", cpuid);
718 isa = -ENOTSUP;
719 }
720
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800721 return isa;
722}
723
Xiao Guangrong37860632012-11-15 14:17:01 +0800724static int read_events(struct perf_kvm_stat *kvm)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800725{
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800726 int ret;
727
David Ahernde332ac2012-10-02 22:09:53 -0600728 struct perf_tool eops = {
729 .sample = process_sample_event,
730 .comm = perf_event__process_comm,
731 .ordered_samples = true,
732 };
733
734 kvm->tool = eops;
735 kvm->session = perf_session__new(kvm->file_name, O_RDONLY, 0, false,
736 &kvm->tool);
737 if (!kvm->session) {
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800738 pr_err("Initializing perf session failed\n");
739 return -EINVAL;
740 }
741
David Ahernde332ac2012-10-02 22:09:53 -0600742 if (!perf_session__has_traces(kvm->session, "kvm record"))
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800743 return -EINVAL;
744
745 /*
746 * Do not use 'isa' recorded in kvm_exit tracepoint since it is not
747 * traced in the old kernel.
748 */
David Ahernde332ac2012-10-02 22:09:53 -0600749 ret = get_cpu_isa(kvm->session);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800750
751 if (ret < 0)
752 return ret;
753
David Ahernde332ac2012-10-02 22:09:53 -0600754 if (ret == 1) {
755 kvm->exit_reasons = vmx_exit_reasons;
756 kvm->exit_reasons_size = ARRAY_SIZE(vmx_exit_reasons);
757 kvm->exit_reasons_isa = "VMX";
758 }
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800759
David Ahernde332ac2012-10-02 22:09:53 -0600760 return perf_session__process_events(kvm->session, &kvm->tool);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800761}
762
763static bool verify_vcpu(int vcpu)
764{
765 if (vcpu != -1 && vcpu < 0) {
766 pr_err("Invalid vcpu:%d.\n", vcpu);
767 return false;
768 }
769
770 return true;
771}
772
Xiao Guangrong37860632012-11-15 14:17:01 +0800773static int kvm_events_report_vcpu(struct perf_kvm_stat *kvm)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800774{
775 int ret = -EINVAL;
David Ahernde332ac2012-10-02 22:09:53 -0600776 int vcpu = kvm->trace_vcpu;
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800777
778 if (!verify_vcpu(vcpu))
779 goto exit;
780
David Ahernde332ac2012-10-02 22:09:53 -0600781 if (!select_key(kvm))
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800782 goto exit;
783
David Ahernde332ac2012-10-02 22:09:53 -0600784 if (!register_kvm_events_ops(kvm))
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800785 goto exit;
786
David Ahernde332ac2012-10-02 22:09:53 -0600787 init_kvm_event_record(kvm);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800788 setup_pager();
789
David Ahernde332ac2012-10-02 22:09:53 -0600790 ret = read_events(kvm);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800791 if (ret)
792 goto exit;
793
David Ahernde332ac2012-10-02 22:09:53 -0600794 sort_result(kvm);
795 print_result(kvm);
796
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800797exit:
798 return ret;
799}
800
801static const char * const record_args[] = {
802 "record",
803 "-R",
804 "-f",
805 "-m", "1024",
806 "-c", "1",
807 "-e", "kvm:kvm_entry",
808 "-e", "kvm:kvm_exit",
809 "-e", "kvm:kvm_mmio",
810 "-e", "kvm:kvm_pio",
811};
812
813#define STRDUP_FAIL_EXIT(s) \
814 ({ char *_p; \
815 _p = strdup(s); \
816 if (!_p) \
817 return -ENOMEM; \
818 _p; \
819 })
820
Xiao Guangrong37860632012-11-15 14:17:01 +0800821static int
822kvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800823{
824 unsigned int rec_argc, i, j;
825 const char **rec_argv;
826
827 rec_argc = ARRAY_SIZE(record_args) + argc + 2;
828 rec_argv = calloc(rec_argc + 1, sizeof(char *));
829
830 if (rec_argv == NULL)
831 return -ENOMEM;
832
833 for (i = 0; i < ARRAY_SIZE(record_args); i++)
834 rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]);
835
836 rec_argv[i++] = STRDUP_FAIL_EXIT("-o");
David Ahernde332ac2012-10-02 22:09:53 -0600837 rec_argv[i++] = STRDUP_FAIL_EXIT(kvm->file_name);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800838
839 for (j = 1; j < (unsigned int)argc; j++, i++)
840 rec_argv[i] = argv[j];
841
842 return cmd_record(i, rec_argv, NULL);
843}
844
Xiao Guangrong37860632012-11-15 14:17:01 +0800845static int
846kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800847{
David Ahernde332ac2012-10-02 22:09:53 -0600848 const struct option kvm_events_report_options[] = {
849 OPT_STRING(0, "event", &kvm->report_event, "report event",
850 "event for reporting: vmexit, mmio, ioport"),
851 OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu,
852 "vcpu id to report"),
853 OPT_STRING('k', "key", &kvm->sort_key, "sort-key",
854 "key for sorting: sample(sort by samples number)"
855 " time (sort by avg time)"),
856 OPT_END()
857 };
858
859 const char * const kvm_events_report_usage[] = {
860 "perf kvm stat report [<options>]",
861 NULL
862 };
863
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800864 symbol__init();
865
866 if (argc) {
867 argc = parse_options(argc, argv,
868 kvm_events_report_options,
869 kvm_events_report_usage, 0);
870 if (argc)
871 usage_with_options(kvm_events_report_usage,
872 kvm_events_report_options);
873 }
874
David Ahernde332ac2012-10-02 22:09:53 -0600875 return kvm_events_report_vcpu(kvm);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800876}
877
878static void print_kvm_stat_usage(void)
879{
880 printf("Usage: perf kvm stat <command>\n\n");
881
882 printf("# Available commands:\n");
883 printf("\trecord: record kvm events\n");
884 printf("\treport: report statistical data of kvm events\n");
885
886 printf("\nOtherwise, it is the alias of 'perf stat':\n");
887}
888
Xiao Guangrong37860632012-11-15 14:17:01 +0800889static int kvm_cmd_stat(const char *file_name, int argc, const char **argv)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800890{
Xiao Guangrong37860632012-11-15 14:17:01 +0800891 struct perf_kvm_stat kvm = {
892 .file_name = file_name,
893
894 .trace_vcpu = -1,
895 .report_event = "vmexit",
896 .sort_key = "sample",
897
898 .exit_reasons = svm_exit_reasons,
899 .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons),
900 .exit_reasons_isa = "SVM",
901 };
902
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800903 if (argc == 1) {
904 print_kvm_stat_usage();
905 goto perf_stat;
906 }
907
908 if (!strncmp(argv[1], "rec", 3))
Xiao Guangrong37860632012-11-15 14:17:01 +0800909 return kvm_events_record(&kvm, argc - 1, argv + 1);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800910
911 if (!strncmp(argv[1], "rep", 3))
Xiao Guangrong37860632012-11-15 14:17:01 +0800912 return kvm_events_report(&kvm, argc - 1 , argv + 1);
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800913
914perf_stat:
915 return cmd_stat(argc, argv, NULL);
916}
Xiao Guangrong73210902012-11-19 16:19:21 +0800917#endif
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +0800918
Xiao Guangrong37860632012-11-15 14:17:01 +0800919static int __cmd_record(const char *file_name, int argc, const char **argv)
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800920{
921 int rec_argc, i = 0, j;
922 const char **rec_argv;
923
924 rec_argc = argc + 2;
925 rec_argv = calloc(rec_argc + 1, sizeof(char *));
926 rec_argv[i++] = strdup("record");
927 rec_argv[i++] = strdup("-o");
Xiao Guangrong37860632012-11-15 14:17:01 +0800928 rec_argv[i++] = strdup(file_name);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800929 for (j = 1; j < argc; j++, i++)
930 rec_argv[i] = argv[j];
931
932 BUG_ON(i != rec_argc);
933
934 return cmd_record(i, rec_argv, NULL);
935}
936
Xiao Guangrong37860632012-11-15 14:17:01 +0800937static int __cmd_report(const char *file_name, int argc, const char **argv)
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800938{
939 int rec_argc, i = 0, j;
940 const char **rec_argv;
941
942 rec_argc = argc + 2;
943 rec_argv = calloc(rec_argc + 1, sizeof(char *));
944 rec_argv[i++] = strdup("report");
945 rec_argv[i++] = strdup("-i");
Xiao Guangrong37860632012-11-15 14:17:01 +0800946 rec_argv[i++] = strdup(file_name);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800947 for (j = 1; j < argc; j++, i++)
948 rec_argv[i] = argv[j];
949
950 BUG_ON(i != rec_argc);
951
952 return cmd_report(i, rec_argv, NULL);
953}
954
Xiao Guangrong37860632012-11-15 14:17:01 +0800955static int
956__cmd_buildid_list(const char *file_name, int argc, const char **argv)
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800957{
958 int rec_argc, i = 0, j;
959 const char **rec_argv;
960
961 rec_argc = argc + 2;
962 rec_argv = calloc(rec_argc + 1, sizeof(char *));
963 rec_argv[i++] = strdup("buildid-list");
964 rec_argv[i++] = strdup("-i");
Xiao Guangrong37860632012-11-15 14:17:01 +0800965 rec_argv[i++] = strdup(file_name);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800966 for (j = 1; j < argc; j++, i++)
967 rec_argv[i] = argv[j];
968
969 BUG_ON(i != rec_argc);
970
971 return cmd_buildid_list(i, rec_argv, NULL);
972}
973
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300974int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused)
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800975{
Arnaldo Carvalho de Melo20914ce52012-12-19 10:59:29 -0300976 const char *file_name = NULL;
David Ahernde332ac2012-10-02 22:09:53 -0600977 const struct option kvm_options[] = {
Xiao Guangrong37860632012-11-15 14:17:01 +0800978 OPT_STRING('i', "input", &file_name, "file",
David Ahernde332ac2012-10-02 22:09:53 -0600979 "Input file name"),
Xiao Guangrong37860632012-11-15 14:17:01 +0800980 OPT_STRING('o', "output", &file_name, "file",
David Ahernde332ac2012-10-02 22:09:53 -0600981 "Output file name"),
982 OPT_BOOLEAN(0, "guest", &perf_guest,
983 "Collect guest os data"),
984 OPT_BOOLEAN(0, "host", &perf_host,
985 "Collect host os data"),
986 OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory",
987 "guest mount directory under which every guest os"
988 " instance has a subdir"),
989 OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name,
990 "file", "file saving guest os vmlinux"),
991 OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms,
992 "file", "file saving guest os /proc/kallsyms"),
993 OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules,
994 "file", "file saving guest os /proc/modules"),
995 OPT_END()
996 };
997
998
999 const char * const kvm_usage[] = {
1000 "perf kvm [<options>] {top|record|report|diff|buildid-list|stat}",
1001 NULL
1002 };
1003
Joerg Roedel1aed2672012-01-04 17:54:20 +01001004 perf_host = 0;
1005 perf_guest = 1;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001006
1007 argc = parse_options(argc, argv, kvm_options, kvm_usage,
1008 PARSE_OPT_STOP_AT_NON_OPTION);
1009 if (!argc)
1010 usage_with_options(kvm_usage, kvm_options);
1011
1012 if (!perf_host)
1013 perf_guest = 1;
1014
Xiao Guangrong37860632012-11-15 14:17:01 +08001015 if (!file_name) {
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001016 if (perf_host && !perf_guest)
Xiao Guangrong37860632012-11-15 14:17:01 +08001017 file_name = strdup("perf.data.host");
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001018 else if (!perf_host && perf_guest)
Xiao Guangrong37860632012-11-15 14:17:01 +08001019 file_name = strdup("perf.data.guest");
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001020 else
Xiao Guangrong37860632012-11-15 14:17:01 +08001021 file_name = strdup("perf.data.kvm");
David Ahernde332ac2012-10-02 22:09:53 -06001022
Xiao Guangrong37860632012-11-15 14:17:01 +08001023 if (!file_name) {
David Ahernde332ac2012-10-02 22:09:53 -06001024 pr_err("Failed to allocate memory for filename\n");
1025 return -ENOMEM;
1026 }
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001027 }
1028
1029 if (!strncmp(argv[0], "rec", 3))
Xiao Guangrong37860632012-11-15 14:17:01 +08001030 return __cmd_record(file_name, argc, argv);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001031 else if (!strncmp(argv[0], "rep", 3))
Xiao Guangrong37860632012-11-15 14:17:01 +08001032 return __cmd_report(file_name, argc, argv);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001033 else if (!strncmp(argv[0], "diff", 4))
1034 return cmd_diff(argc, argv, NULL);
1035 else if (!strncmp(argv[0], "top", 3))
1036 return cmd_top(argc, argv, NULL);
1037 else if (!strncmp(argv[0], "buildid-list", 12))
Xiao Guangrong37860632012-11-15 14:17:01 +08001038 return __cmd_buildid_list(file_name, argc, argv);
Xiao Guangrong73210902012-11-19 16:19:21 +08001039#if defined(__i386__) || defined(__x86_64__)
Xiao Guangrongbcf6edc2012-09-17 16:31:15 +08001040 else if (!strncmp(argv[0], "stat", 4))
Xiao Guangrong37860632012-11-15 14:17:01 +08001041 return kvm_cmd_stat(file_name, argc, argv);
Xiao Guangrong73210902012-11-19 16:19:21 +08001042#endif
Zhang, Yanmina1645ce2010-04-19 13:32:50 +08001043 else
1044 usage_with_options(kvm_usage, kvm_options);
1045
1046 return 0;
1047}