4 #include "util/evsel.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"
12 #include "util/parse-options.h"
13 #include "util/trace-event.h"
14 #include "util/debug.h"
15 #include <lk/debugfs.h>
16 #include "util/tool.h"
17 #include "util/stat.h"
19 #include <sys/prctl.h>
21 #include <semaphore.h>
25 #if defined(__i386__) || defined(__x86_64__)
31 #define INVALID_KEY (~0ULL)
36 struct kvm_event_stats
{
42 struct list_head hash_entry
;
47 struct kvm_event_stats total
;
49 #define DEFAULT_VCPU_NUM 8
51 struct kvm_event_stats
*vcpu
;
54 typedef int (*key_cmp_fun
)(struct kvm_event
*, struct kvm_event
*, int);
56 struct kvm_event_key
{
64 struct kvm_events_ops
{
65 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
);
70 void (*decode_key
)(struct perf_kvm_stat
*kvm
, struct event_key
*key
,
75 struct exit_reasons_table
{
76 unsigned long exit_code
;
80 #define EVENTS_BITS 12
81 #define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS)
83 struct perf_kvm_stat
{
84 struct perf_tool tool
;
85 struct perf_session
*session
;
87 const char *file_name
;
88 const char *report_event
;
92 struct exit_reasons_table
*exit_reasons
;
93 int exit_reasons_size
;
94 const char *exit_reasons_isa
;
96 struct kvm_events_ops
*events_ops
;
98 struct list_head kvm_events_cache
[EVENTS_CACHE_SIZE
];
102 struct rb_root result
;
106 static void exit_event_get_key(struct perf_evsel
*evsel
,
107 struct perf_sample
*sample
,
108 struct event_key
*key
)
111 key
->key
= perf_evsel__intval(evsel
, sample
, "exit_reason");
114 static bool kvm_exit_event(struct perf_evsel
*evsel
)
116 return !strcmp(evsel
->name
, "kvm:kvm_exit");
119 static bool exit_event_begin(struct perf_evsel
*evsel
,
120 struct perf_sample
*sample
, struct event_key
*key
)
122 if (kvm_exit_event(evsel
)) {
123 exit_event_get_key(evsel
, sample
, key
);
130 static bool kvm_entry_event(struct perf_evsel
*evsel
)
132 return !strcmp(evsel
->name
, "kvm:kvm_entry");
135 static bool exit_event_end(struct perf_evsel
*evsel
,
136 struct perf_sample
*sample __maybe_unused
,
137 struct event_key
*key __maybe_unused
)
139 return kvm_entry_event(evsel
);
142 static struct exit_reasons_table vmx_exit_reasons
[] = {
146 static struct exit_reasons_table svm_exit_reasons
[] = {
150 static const char *get_exit_reason(struct perf_kvm_stat
*kvm
, u64 exit_code
)
152 int i
= kvm
->exit_reasons_size
;
153 struct exit_reasons_table
*tbl
= kvm
->exit_reasons
;
156 if (tbl
->exit_code
== exit_code
)
161 pr_err("unknown kvm exit code:%lld on %s\n",
162 (unsigned long long)exit_code
, kvm
->exit_reasons_isa
);
166 static void exit_event_decode_key(struct perf_kvm_stat
*kvm
,
167 struct event_key
*key
,
170 const char *exit_reason
= get_exit_reason(kvm
, key
->key
);
172 scnprintf(decode
, 20, "%s", exit_reason
);
175 static 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
,
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...).
187 static void mmio_event_get_key(struct perf_evsel
*evsel
, struct perf_sample
*sample
,
188 struct event_key
*key
)
190 key
->key
= perf_evsel__intval(evsel
, sample
, "gpa");
191 key
->info
= perf_evsel__intval(evsel
, sample
, "type");
194 #define KVM_TRACE_MMIO_READ_UNSATISFIED 0
195 #define KVM_TRACE_MMIO_READ 1
196 #define KVM_TRACE_MMIO_WRITE 2
198 static bool mmio_event_begin(struct perf_evsel
*evsel
,
199 struct perf_sample
*sample
, struct event_key
*key
)
201 /* MMIO read begin event in kernel. */
202 if (kvm_exit_event(evsel
))
205 /* MMIO write begin event in kernel. */
206 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
);
215 static bool mmio_event_end(struct perf_evsel
*evsel
, struct perf_sample
*sample
,
216 struct event_key
*key
)
218 /* MMIO write end event in kernel. */
219 if (kvm_entry_event(evsel
))
222 /* MMIO read end event in kernel.*/
223 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
);
232 static void mmio_event_decode_key(struct perf_kvm_stat
*kvm __maybe_unused
,
233 struct event_key
*key
,
236 scnprintf(decode
, 20, "%#lx:%s", (unsigned long)key
->key
,
237 key
->info
== KVM_TRACE_MMIO_WRITE
? "W" : "R");
240 static 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"
247 /* The time of emulation pio access is from kvm_pio to kvm_entry. */
248 static void ioport_event_get_key(struct perf_evsel
*evsel
,
249 struct perf_sample
*sample
,
250 struct event_key
*key
)
252 key
->key
= perf_evsel__intval(evsel
, sample
, "port");
253 key
->info
= perf_evsel__intval(evsel
, sample
, "rw");
256 static bool ioport_event_begin(struct perf_evsel
*evsel
,
257 struct perf_sample
*sample
,
258 struct event_key
*key
)
260 if (!strcmp(evsel
->name
, "kvm:kvm_pio")) {
261 ioport_event_get_key(evsel
, sample
, key
);
268 static bool ioport_event_end(struct perf_evsel
*evsel
,
269 struct perf_sample
*sample __maybe_unused
,
270 struct event_key
*key __maybe_unused
)
272 return kvm_entry_event(evsel
);
275 static void ioport_event_decode_key(struct perf_kvm_stat
*kvm __maybe_unused
,
276 struct event_key
*key
,
279 scnprintf(decode
, 20, "%#llx:%s", (unsigned long long)key
->key
,
280 key
->info
? "POUT" : "PIN");
283 static 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"
290 static bool register_kvm_events_ops(struct perf_kvm_stat
*kvm
)
294 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
;
301 pr_err("Unknown report event:%s\n", kvm
->report_event
);
308 struct vcpu_event_record
{
311 struct kvm_event
*last_event
;
315 static void init_kvm_event_record(struct perf_kvm_stat
*kvm
)
319 for (i
= 0; i
< EVENTS_CACHE_SIZE
; i
++)
320 INIT_LIST_HEAD(&kvm
->kvm_events_cache
[i
]);
323 static int kvm_events_hash_fn(u64 key
)
325 return key
& (EVENTS_CACHE_SIZE
- 1);
328 static bool kvm_event_expand(struct kvm_event
*event
, int vcpu_id
)
330 int old_max_vcpu
= event
->max_vcpu
;
333 if (vcpu_id
< event
->max_vcpu
)
336 while (event
->max_vcpu
<= vcpu_id
)
337 event
->max_vcpu
+= DEFAULT_VCPU_NUM
;
340 event
->vcpu
= realloc(event
->vcpu
,
341 event
->max_vcpu
* sizeof(*event
->vcpu
));
344 pr_err("Not enough memory\n");
348 memset(event
->vcpu
+ old_max_vcpu
, 0,
349 (event
->max_vcpu
- old_max_vcpu
) * sizeof(*event
->vcpu
));
353 static struct kvm_event
*kvm_alloc_init_event(struct event_key
*key
)
355 struct kvm_event
*event
;
357 event
= zalloc(sizeof(*event
));
359 pr_err("Not enough memory\n");
367 static struct kvm_event
*find_create_kvm_event(struct perf_kvm_stat
*kvm
,
368 struct event_key
*key
)
370 struct kvm_event
*event
;
371 struct list_head
*head
;
373 BUG_ON(key
->key
== INVALID_KEY
);
375 head
= &kvm
->kvm_events_cache
[kvm_events_hash_fn(key
->key
)];
376 list_for_each_entry(event
, head
, hash_entry
) {
377 if (event
->key
.key
== key
->key
&& event
->key
.info
== key
->info
)
381 event
= kvm_alloc_init_event(key
);
385 list_add(&event
->hash_entry
, head
);
389 static bool handle_begin_event(struct perf_kvm_stat
*kvm
,
390 struct vcpu_event_record
*vcpu_record
,
391 struct event_key
*key
, u64 timestamp
)
393 struct kvm_event
*event
= NULL
;
395 if (key
->key
!= INVALID_KEY
)
396 event
= find_create_kvm_event(kvm
, key
);
398 vcpu_record
->last_event
= event
;
399 vcpu_record
->start_time
= timestamp
;
404 kvm_update_event_stats(struct kvm_event_stats
*kvm_stats
, u64 time_diff
)
406 kvm_stats
->time
+= time_diff
;
407 update_stats(&kvm_stats
->stats
, time_diff
);
410 static double kvm_event_rel_stddev(int vcpu_id
, struct kvm_event
*event
)
412 struct kvm_event_stats
*kvm_stats
= &event
->total
;
415 kvm_stats
= &event
->vcpu
[vcpu_id
];
417 return rel_stddev_stats(stddev_stats(&kvm_stats
->stats
),
418 avg_stats(&kvm_stats
->stats
));
421 static bool update_kvm_event(struct kvm_event
*event
, int vcpu_id
,
425 kvm_update_event_stats(&event
->total
, time_diff
);
429 if (!kvm_event_expand(event
, vcpu_id
))
432 kvm_update_event_stats(&event
->vcpu
[vcpu_id
], time_diff
);
436 static bool handle_end_event(struct perf_kvm_stat
*kvm
,
437 struct vcpu_event_record
*vcpu_record
,
438 struct event_key
*key
,
441 struct kvm_event
*event
;
442 u64 time_begin
, time_diff
;
445 if (kvm
->trace_vcpu
== -1)
448 vcpu
= vcpu_record
->vcpu_id
;
450 event
= vcpu_record
->last_event
;
451 time_begin
= vcpu_record
->start_time
;
453 /* The begin event is not caught. */
458 * In some case, the 'begin event' only records the start timestamp,
459 * the actual event is recognized in the 'end event' (e.g. mmio-event).
462 /* Both begin and end events did not get the key. */
463 if (!event
&& key
->key
== INVALID_KEY
)
467 event
= find_create_kvm_event(kvm
, key
);
472 vcpu_record
->last_event
= NULL
;
473 vcpu_record
->start_time
= 0;
475 BUG_ON(timestamp
< time_begin
);
477 time_diff
= timestamp
- time_begin
;
478 return update_kvm_event(event
, vcpu
, time_diff
);
482 struct vcpu_event_record
*per_vcpu_record(struct thread
*thread
,
483 struct perf_evsel
*evsel
,
484 struct perf_sample
*sample
)
486 /* Only kvm_entry records vcpu id. */
487 if (!thread
->priv
&& kvm_entry_event(evsel
)) {
488 struct vcpu_event_record
*vcpu_record
;
490 vcpu_record
= zalloc(sizeof(*vcpu_record
));
492 pr_err("%s: Not enough memory\n", __func__
);
496 vcpu_record
->vcpu_id
= perf_evsel__intval(evsel
, sample
, "vcpu_id");
497 thread
->priv
= vcpu_record
;
503 static bool handle_kvm_event(struct perf_kvm_stat
*kvm
,
504 struct thread
*thread
,
505 struct perf_evsel
*evsel
,
506 struct perf_sample
*sample
)
508 struct vcpu_event_record
*vcpu_record
;
509 struct event_key key
= {.key
= INVALID_KEY
};
511 vcpu_record
= per_vcpu_record(thread
, evsel
, sample
);
515 /* only process events for vcpus user cares about */
516 if ((kvm
->trace_vcpu
!= -1) &&
517 (kvm
->trace_vcpu
!= vcpu_record
->vcpu_id
))
520 if (kvm
->events_ops
->is_begin_event(evsel
, sample
, &key
))
521 return handle_begin_event(kvm
, vcpu_record
, &key
, sample
->time
);
523 if (kvm
->events_ops
->is_end_event(evsel
, sample
, &key
))
524 return handle_end_event(kvm
, vcpu_record
, &key
, sample
->time
);
529 #define GET_EVENT_KEY(func, field) \
530 static u64 get_event_ ##func(struct kvm_event *event, int vcpu) \
533 return event->total.field; \
535 if (vcpu >= event->max_vcpu) \
538 return event->vcpu[vcpu].field; \
541 #define COMPARE_EVENT_KEY(func, field) \
542 GET_EVENT_KEY(func, field) \
543 static int compare_kvm_event_ ## func(struct kvm_event *one, \
544 struct kvm_event *two, int vcpu)\
546 return get_event_ ##func(one, vcpu) > \
547 get_event_ ##func(two, vcpu); \
550 GET_EVENT_KEY(time
, time
);
551 COMPARE_EVENT_KEY(count
, stats
.n
);
552 COMPARE_EVENT_KEY(mean
, stats
.mean
);
554 #define DEF_SORT_NAME_KEY(name, compare_key) \
555 { #name, compare_kvm_event_ ## compare_key }
557 static struct kvm_event_key keys
[] = {
558 DEF_SORT_NAME_KEY(sample
, count
),
559 DEF_SORT_NAME_KEY(time
, mean
),
563 static bool select_key(struct perf_kvm_stat
*kvm
)
567 for (i
= 0; keys
[i
].name
; i
++) {
568 if (!strcmp(keys
[i
].name
, kvm
->sort_key
)) {
569 kvm
->compare
= keys
[i
].key
;
574 pr_err("Unknown compare key:%s\n", kvm
->sort_key
);
578 static void insert_to_result(struct rb_root
*result
, struct kvm_event
*event
,
579 key_cmp_fun bigger
, int vcpu
)
581 struct rb_node
**rb
= &result
->rb_node
;
582 struct rb_node
*parent
= NULL
;
586 p
= container_of(*rb
, struct kvm_event
, rb
);
589 if (bigger(event
, p
, vcpu
))
590 rb
= &(*rb
)->rb_left
;
592 rb
= &(*rb
)->rb_right
;
595 rb_link_node(&event
->rb
, parent
, rb
);
596 rb_insert_color(&event
->rb
, result
);
600 update_total_count(struct perf_kvm_stat
*kvm
, struct kvm_event
*event
)
602 int vcpu
= kvm
->trace_vcpu
;
604 kvm
->total_count
+= get_event_count(event
, vcpu
);
605 kvm
->total_time
+= get_event_time(event
, vcpu
);
608 static bool event_is_valid(struct kvm_event
*event
, int vcpu
)
610 return !!get_event_count(event
, vcpu
);
613 static void sort_result(struct perf_kvm_stat
*kvm
)
616 int vcpu
= kvm
->trace_vcpu
;
617 struct kvm_event
*event
;
619 for (i
= 0; i
< EVENTS_CACHE_SIZE
; i
++) {
620 list_for_each_entry(event
, &kvm
->kvm_events_cache
[i
], hash_entry
) {
621 if (event_is_valid(event
, vcpu
)) {
622 update_total_count(kvm
, event
);
623 insert_to_result(&kvm
->result
, event
,
630 /* returns left most element of result, and erase it */
631 static struct kvm_event
*pop_from_result(struct rb_root
*result
)
633 struct rb_node
*node
= rb_first(result
);
638 rb_erase(node
, result
);
639 return container_of(node
, struct kvm_event
, rb
);
642 static void print_vcpu_info(int vcpu
)
644 pr_info("Analyze events for ");
647 pr_info("all VCPUs:\n\n");
649 pr_info("VCPU %d:\n\n", vcpu
);
652 static void print_result(struct perf_kvm_stat
*kvm
)
655 struct kvm_event
*event
;
656 int vcpu
= kvm
->trace_vcpu
;
659 print_vcpu_info(vcpu
);
660 pr_info("%20s ", kvm
->events_ops
->name
);
661 pr_info("%10s ", "Samples");
662 pr_info("%9s ", "Samples%");
664 pr_info("%9s ", "Time%");
665 pr_info("%16s ", "Avg time");
668 while ((event
= pop_from_result(&kvm
->result
))) {
671 ecount
= get_event_count(event
, vcpu
);
672 etime
= get_event_time(event
, vcpu
);
674 kvm
->events_ops
->decode_key(kvm
, &event
->key
, decode
);
675 pr_info("%20s ", decode
);
676 pr_info("%10llu ", (unsigned long long)ecount
);
677 pr_info("%8.2f%% ", (double)ecount
/ kvm
->total_count
* 100);
678 pr_info("%8.2f%% ", (double)etime
/ kvm
->total_time
* 100);
679 pr_info("%9.2fus ( +-%7.2f%% )", (double)etime
/ ecount
/1e3
,
680 kvm_event_rel_stddev(vcpu
, event
));
684 pr_info("\nTotal Samples:%" PRIu64
", Total events handled time:%.2fus.\n\n",
685 kvm
->total_count
, kvm
->total_time
/ 1e3
);
688 static int process_sample_event(struct perf_tool
*tool
,
689 union perf_event
*event
,
690 struct perf_sample
*sample
,
691 struct perf_evsel
*evsel
,
692 struct machine
*machine
)
694 struct thread
*thread
= machine__findnew_thread(machine
, sample
->tid
);
695 struct perf_kvm_stat
*kvm
= container_of(tool
, struct perf_kvm_stat
,
698 if (thread
== NULL
) {
699 pr_debug("problem processing %d event, skipping it.\n",
704 if (!handle_kvm_event(kvm
, thread
, evsel
, sample
))
710 static int get_cpu_isa(struct perf_session
*session
)
712 char *cpuid
= session
->header
.env
.cpuid
;
715 if (strstr(cpuid
, "Intel"))
717 else if (strstr(cpuid
, "AMD"))
720 pr_err("CPU %s is not supported.\n", cpuid
);
727 static int read_events(struct perf_kvm_stat
*kvm
)
731 struct perf_tool eops
= {
732 .sample
= process_sample_event
,
733 .comm
= perf_event__process_comm
,
734 .ordered_samples
= true,
738 kvm
->session
= perf_session__new(kvm
->file_name
, O_RDONLY
, 0, false,
741 pr_err("Initializing perf session failed\n");
745 if (!perf_session__has_traces(kvm
->session
, "kvm record"))
749 * Do not use 'isa' recorded in kvm_exit tracepoint since it is not
750 * traced in the old kernel.
752 ret
= get_cpu_isa(kvm
->session
);
758 kvm
->exit_reasons
= vmx_exit_reasons
;
759 kvm
->exit_reasons_size
= ARRAY_SIZE(vmx_exit_reasons
);
760 kvm
->exit_reasons_isa
= "VMX";
763 return perf_session__process_events(kvm
->session
, &kvm
->tool
);
766 static bool verify_vcpu(int vcpu
)
768 if (vcpu
!= -1 && vcpu
< 0) {
769 pr_err("Invalid vcpu:%d.\n", vcpu
);
776 static int kvm_events_report_vcpu(struct perf_kvm_stat
*kvm
)
779 int vcpu
= kvm
->trace_vcpu
;
781 if (!verify_vcpu(vcpu
))
784 if (!select_key(kvm
))
787 if (!register_kvm_events_ops(kvm
))
790 init_kvm_event_record(kvm
);
793 ret
= read_events(kvm
);
804 static const char * const record_args
[] = {
810 "-e", "kvm:kvm_entry",
811 "-e", "kvm:kvm_exit",
812 "-e", "kvm:kvm_mmio",
816 #define STRDUP_FAIL_EXIT(s) \
825 kvm_events_record(struct perf_kvm_stat
*kvm
, int argc
, const char **argv
)
827 unsigned int rec_argc
, i
, j
;
828 const char **rec_argv
;
830 rec_argc
= ARRAY_SIZE(record_args
) + argc
+ 2;
831 rec_argv
= calloc(rec_argc
+ 1, sizeof(char *));
833 if (rec_argv
== NULL
)
836 for (i
= 0; i
< ARRAY_SIZE(record_args
); i
++)
837 rec_argv
[i
] = STRDUP_FAIL_EXIT(record_args
[i
]);
839 rec_argv
[i
++] = STRDUP_FAIL_EXIT("-o");
840 rec_argv
[i
++] = STRDUP_FAIL_EXIT(kvm
->file_name
);
842 for (j
= 1; j
< (unsigned int)argc
; j
++, i
++)
843 rec_argv
[i
] = argv
[j
];
845 return cmd_record(i
, rec_argv
, NULL
);
849 kvm_events_report(struct perf_kvm_stat
*kvm
, int argc
, const char **argv
)
851 const struct option kvm_events_report_options
[] = {
852 OPT_STRING(0, "event", &kvm
->report_event
, "report event",
853 "event for reporting: vmexit, mmio, ioport"),
854 OPT_INTEGER(0, "vcpu", &kvm
->trace_vcpu
,
855 "vcpu id to report"),
856 OPT_STRING('k', "key", &kvm
->sort_key
, "sort-key",
857 "key for sorting: sample(sort by samples number)"
858 " time (sort by avg time)"),
862 const char * const kvm_events_report_usage
[] = {
863 "perf kvm stat report [<options>]",
870 argc
= parse_options(argc
, argv
,
871 kvm_events_report_options
,
872 kvm_events_report_usage
, 0);
874 usage_with_options(kvm_events_report_usage
,
875 kvm_events_report_options
);
878 return kvm_events_report_vcpu(kvm
);
881 static void print_kvm_stat_usage(void)
883 printf("Usage: perf kvm stat <command>\n\n");
885 printf("# Available commands:\n");
886 printf("\trecord: record kvm events\n");
887 printf("\treport: report statistical data of kvm events\n");
889 printf("\nOtherwise, it is the alias of 'perf stat':\n");
892 static int kvm_cmd_stat(const char *file_name
, int argc
, const char **argv
)
894 struct perf_kvm_stat kvm
= {
895 .file_name
= file_name
,
898 .report_event
= "vmexit",
899 .sort_key
= "sample",
901 .exit_reasons
= svm_exit_reasons
,
902 .exit_reasons_size
= ARRAY_SIZE(svm_exit_reasons
),
903 .exit_reasons_isa
= "SVM",
907 print_kvm_stat_usage();
911 if (!strncmp(argv
[1], "rec", 3))
912 return kvm_events_record(&kvm
, argc
- 1, argv
+ 1);
914 if (!strncmp(argv
[1], "rep", 3))
915 return kvm_events_report(&kvm
, argc
- 1 , argv
+ 1);
918 return cmd_stat(argc
, argv
, NULL
);
922 static int __cmd_record(const char *file_name
, int argc
, const char **argv
)
924 int rec_argc
, i
= 0, j
;
925 const char **rec_argv
;
928 rec_argv
= calloc(rec_argc
+ 1, sizeof(char *));
929 rec_argv
[i
++] = strdup("record");
930 rec_argv
[i
++] = strdup("-o");
931 rec_argv
[i
++] = strdup(file_name
);
932 for (j
= 1; j
< argc
; j
++, i
++)
933 rec_argv
[i
] = argv
[j
];
935 BUG_ON(i
!= rec_argc
);
937 return cmd_record(i
, rec_argv
, NULL
);
940 static int __cmd_report(const char *file_name
, int argc
, const char **argv
)
942 int rec_argc
, i
= 0, j
;
943 const char **rec_argv
;
946 rec_argv
= calloc(rec_argc
+ 1, sizeof(char *));
947 rec_argv
[i
++] = strdup("report");
948 rec_argv
[i
++] = strdup("-i");
949 rec_argv
[i
++] = strdup(file_name
);
950 for (j
= 1; j
< argc
; j
++, i
++)
951 rec_argv
[i
] = argv
[j
];
953 BUG_ON(i
!= rec_argc
);
955 return cmd_report(i
, rec_argv
, NULL
);
959 __cmd_buildid_list(const char *file_name
, int argc
, const char **argv
)
961 int rec_argc
, i
= 0, j
;
962 const char **rec_argv
;
965 rec_argv
= calloc(rec_argc
+ 1, sizeof(char *));
966 rec_argv
[i
++] = strdup("buildid-list");
967 rec_argv
[i
++] = strdup("-i");
968 rec_argv
[i
++] = strdup(file_name
);
969 for (j
= 1; j
< argc
; j
++, i
++)
970 rec_argv
[i
] = argv
[j
];
972 BUG_ON(i
!= rec_argc
);
974 return cmd_buildid_list(i
, rec_argv
, NULL
);
977 int cmd_kvm(int argc
, const char **argv
, const char *prefix __maybe_unused
)
979 const char *file_name
= NULL
;
980 const struct option kvm_options
[] = {
981 OPT_STRING('i', "input", &file_name
, "file",
983 OPT_STRING('o', "output", &file_name
, "file",
985 OPT_BOOLEAN(0, "guest", &perf_guest
,
986 "Collect guest os data"),
987 OPT_BOOLEAN(0, "host", &perf_host
,
988 "Collect host os data"),
989 OPT_STRING(0, "guestmount", &symbol_conf
.guestmount
, "directory",
990 "guest mount directory under which every guest os"
991 " instance has a subdir"),
992 OPT_STRING(0, "guestvmlinux", &symbol_conf
.default_guest_vmlinux_name
,
993 "file", "file saving guest os vmlinux"),
994 OPT_STRING(0, "guestkallsyms", &symbol_conf
.default_guest_kallsyms
,
995 "file", "file saving guest os /proc/kallsyms"),
996 OPT_STRING(0, "guestmodules", &symbol_conf
.default_guest_modules
,
997 "file", "file saving guest os /proc/modules"),
1002 const char * const kvm_usage
[] = {
1003 "perf kvm [<options>] {top|record|report|diff|buildid-list|stat}",
1010 argc
= parse_options(argc
, argv
, kvm_options
, kvm_usage
,
1011 PARSE_OPT_STOP_AT_NON_OPTION
);
1013 usage_with_options(kvm_usage
, kvm_options
);
1019 if (perf_host
&& !perf_guest
)
1020 file_name
= strdup("perf.data.host");
1021 else if (!perf_host
&& perf_guest
)
1022 file_name
= strdup("perf.data.guest");
1024 file_name
= strdup("perf.data.kvm");
1027 pr_err("Failed to allocate memory for filename\n");
1032 if (!strncmp(argv
[0], "rec", 3))
1033 return __cmd_record(file_name
, argc
, argv
);
1034 else if (!strncmp(argv
[0], "rep", 3))
1035 return __cmd_report(file_name
, argc
, argv
);
1036 else if (!strncmp(argv
[0], "diff", 4))
1037 return cmd_diff(argc
, argv
, NULL
);
1038 else if (!strncmp(argv
[0], "top", 3))
1039 return cmd_top(argc
, argv
, NULL
);
1040 else if (!strncmp(argv
[0], "buildid-list", 12))
1041 return __cmd_buildid_list(file_name
, argc
, argv
);
1042 #if defined(__i386__) || defined(__x86_64__)
1043 else if (!strncmp(argv
[0], "stat", 4))
1044 return kvm_cmd_stat(file_name
, argc
, argv
);
1047 usage_with_options(kvm_usage
, kvm_options
);