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2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771 
 kernel/tools/perf/builtin-kvm.c
....@@ -2,24 +2,28 @@
22 #include "builtin.h"
33 #include "perf.h"
44 
5
+#include "util/build-id.h"
56 #include "util/evsel.h"
67 #include "util/evlist.h"
8
+#include "util/mmap.h"
79 #include "util/term.h"
8
-#include "util/util.h"
9
-#include "util/cache.h"
1010 #include "util/symbol.h"
1111 #include "util/thread.h"
1212 #include "util/header.h"
1313 #include "util/session.h"
1414 #include "util/intlist.h"
15
+#include <subcmd/pager.h>
1516 #include <subcmd/parse-options.h>
1617 #include "util/trace-event.h"
1718 #include "util/debug.h"
1819 #include "util/tool.h"
1920 #include "util/stat.h"
21
+#include "util/synthetic-events.h"
2022 #include "util/top.h"
2123 #include "util/data.h"
2224 #include "util/ordered-events.h"
25
+#include "util/kvm-stat.h"
26
+#include "ui/ui.h"
2327 
2428 #include <sys/prctl.h>
2529 #ifdef HAVE_TIMERFD_SUPPORT
....@@ -30,8 +34,11 @@
3034 #include <sys/stat.h>
3135 #include <fcntl.h>
3236 
37
+#include <linux/err.h>
3338 #include <linux/kernel.h>
39
+#include <linux/string.h>
3440 #include <linux/time64.h>
41
+#include <linux/zalloc.h>
3542 #include <errno.h>
3643 #include <inttypes.h>
3744 #include <poll.h>
....@@ -39,6 +46,7 @@
3946 #include <semaphore.h>
4047 #include <signal.h>
4148 #include <math.h>
49
+#include <perf/mmap.h>
4250 
4351 static const char *get_filename_for_perf_kvm(void)
4452 {
....@@ -55,22 +63,21 @@
5563 }
5664 
5765 #ifdef HAVE_KVM_STAT_SUPPORT
58
-#include "util/kvm-stat.h"
5966 
60
-void exit_event_get_key(struct perf_evsel *evsel,
67
+void exit_event_get_key(struct evsel *evsel,
6168 			struct perf_sample *sample,
6269 			struct event_key *key)
6370 {
6471 	key->info = 0;
65
-	key->key = perf_evsel__intval(evsel, sample, kvm_exit_reason);
72
+	key->key  = evsel__intval(evsel, sample, kvm_exit_reason);
6673 }
6774 
68
-bool kvm_exit_event(struct perf_evsel *evsel)
75
+bool kvm_exit_event(struct evsel *evsel)
6976 {
7077 	return !strcmp(evsel->name, kvm_exit_trace);
7178 }
7279 
73
-bool exit_event_begin(struct perf_evsel *evsel,
80
+bool exit_event_begin(struct evsel *evsel,
7481 		      struct perf_sample *sample, struct event_key *key)
7582 {
7683 	if (kvm_exit_event(evsel)) {
....@@ -81,12 +88,12 @@
8188 	return false;
8289 }
8390 
84
-bool kvm_entry_event(struct perf_evsel *evsel)
91
+bool kvm_entry_event(struct evsel *evsel)
8592 {
8693 	return !strcmp(evsel->name, kvm_entry_trace);
8794 }
8895 
89
-bool exit_event_end(struct perf_evsel *evsel,
96
+bool exit_event_end(struct evsel *evsel,
9097 		    struct perf_sample *sample __maybe_unused,
9198 		    struct event_key *key __maybe_unused)
9299 {
....@@ -286,7 +293,7 @@
286293 }
287294 
288295 static bool is_child_event(struct perf_kvm_stat *kvm,
289
-			   struct perf_evsel *evsel,
296
+			   struct evsel *evsel,
290297 			   struct perf_sample *sample,
291298 			   struct event_key *key)
292299 {
....@@ -396,7 +403,7 @@
396403 
397404 static
398405 struct vcpu_event_record *per_vcpu_record(struct thread *thread,
399
-					  struct perf_evsel *evsel,
406
+					  struct evsel *evsel,
400407 					  struct perf_sample *sample)
401408 {
402409 	/* Only kvm_entry records vcpu id. */
....@@ -409,8 +416,7 @@
409416 			return NULL;
410417 		}
411418 
412
-		vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample,
413
-							  vcpu_id_str);
419
+		vcpu_record->vcpu_id = evsel__intval(evsel, sample, vcpu_id_str);
414420 		thread__set_priv(thread, vcpu_record);
415421 	}
416422 
....@@ -419,7 +425,7 @@
419425 
420426 static bool handle_kvm_event(struct perf_kvm_stat *kvm,
421427 			     struct thread *thread,
422
-			     struct perf_evsel *evsel,
428
+			     struct evsel *evsel,
423429 			     struct perf_sample *sample)
424430 {
425431 	struct vcpu_event_record *vcpu_record;
....@@ -672,7 +678,7 @@
672678 static int process_sample_event(struct perf_tool *tool,
673679 				union perf_event *event,
674680 				struct perf_sample *sample,
675
-				struct perf_evsel *evsel,
681
+				struct evsel *evsel,
676682 				struct machine *machine)
677683 {
678684 	int err = 0;
....@@ -744,23 +750,23 @@
744750 static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx,
745751 				   u64 *mmap_time)
746752 {
747
-	struct perf_evlist *evlist = kvm->evlist;
753
+	struct evlist *evlist = kvm->evlist;
748754 	union perf_event *event;
749
-	struct perf_mmap *md;
755
+	struct mmap *md;
750756 	u64 timestamp;
751757 	s64 n = 0;
752758 	int err;
753759 
754760 	*mmap_time = ULLONG_MAX;
755761 	md = &evlist->mmap[idx];
756
-	err = perf_mmap__read_init(md);
762
+	err = perf_mmap__read_init(&md->core);
757763 	if (err < 0)
758764 		return (err == -EAGAIN) ? 0 : -1;
759765 
760
-	while ((event = perf_mmap__read_event(md)) != NULL) {
766
+	while ((event = perf_mmap__read_event(&md->core)) != NULL) {
761767 		err = perf_evlist__parse_sample_timestamp(evlist, event, &timestamp);
762768 		if (err) {
763
-			perf_mmap__consume(md);
769
+			perf_mmap__consume(&md->core);
764770 			pr_err("Failed to parse sample\n");
765771 			return -1;
766772 		}
....@@ -770,7 +776,7 @@
770776 		 * FIXME: Here we can't consume the event, as perf_session__queue_event will
771777 		 *        point to it, and it'll get possibly overwritten by the kernel.
772778 		 */
773
-		perf_mmap__consume(md);
779
+		perf_mmap__consume(&md->core);
774780 
775781 		if (err) {
776782 			pr_err("Failed to enqueue sample: %d\n", err);
....@@ -787,7 +793,7 @@
787793 			break;
788794 	}
789795 
790
-	perf_mmap__read_done(md);
796
+	perf_mmap__read_done(&md->core);
791797 	return n;
792798 }
793799 
....@@ -797,7 +803,7 @@
797803 	s64 n, ntotal = 0;
798804 	u64 flush_time = ULLONG_MAX, mmap_time;
799805 
800
-	for (i = 0; i < kvm->evlist->nr_mmaps; i++) {
806
+	for (i = 0; i < kvm->evlist->core.nr_mmaps; i++) {
801807 		n = perf_kvm__mmap_read_idx(kvm, i, &mmap_time);
802808 		if (n < 0)
803809 			return -1;
....@@ -962,10 +968,10 @@
962968 		goto out;
963969 	}
964970 
965
-	if (perf_evlist__add_pollfd(kvm->evlist, kvm->timerfd) < 0)
971
+	if (evlist__add_pollfd(kvm->evlist, kvm->timerfd) < 0)
966972 		goto out;
967973 
968
-	nr_stdin = perf_evlist__add_pollfd(kvm->evlist, fileno(stdin));
974
+	nr_stdin = evlist__add_pollfd(kvm->evlist, fileno(stdin));
969975 	if (nr_stdin < 0)
970976 		goto out;
971977 
....@@ -973,10 +979,10 @@
973979 		goto out;
974980 
975981 	/* everything is good - enable the events and process */
976
-	perf_evlist__enable(kvm->evlist);
982
+	evlist__enable(kvm->evlist);
977983 
978984 	while (!done) {
979
-		struct fdarray *fda = &kvm->evlist->pollfd;
985
+		struct fdarray *fda = &kvm->evlist->core.pollfd;
980986 		int rc;
981987 
982988 		rc = perf_kvm__mmap_read(kvm);
....@@ -991,10 +997,10 @@
991997 			done = perf_kvm__handle_stdin();
992998 
993999 		if (!rc && !done)
994
-			err = fdarray__poll(fda, 100);
1000
+			err = evlist__poll(kvm->evlist, 100);
9951001 	}
9961002 
997
-	perf_evlist__disable(kvm->evlist);
1003
+	evlist__disable(kvm->evlist);
9981004 
9991005 	if (err == 0) {
10001006 		sort_result(kvm);
....@@ -1012,8 +1018,8 @@
10121018 static int kvm_live_open_events(struct perf_kvm_stat *kvm)
10131019 {
10141020 	int err, rc = -1;
1015
-	struct perf_evsel *pos;
1016
-	struct perf_evlist *evlist = kvm->evlist;
1021
+	struct evsel *pos;
1022
+	struct evlist *evlist = kvm->evlist;
10171023 	char sbuf[STRERR_BUFSIZE];
10181024 
10191025 	perf_evlist__config(evlist, &kvm->opts, NULL);
....@@ -1023,19 +1029,19 @@
10231029 	 *       This command processes KVM tracepoints from host only
10241030 	 */
10251031 	evlist__for_each_entry(evlist, pos) {
1026
-		struct perf_event_attr *attr = &pos->attr;
1032
+		struct perf_event_attr *attr = &pos->core.attr;
10271033 
10281034 		/* make sure these *are* set */
1029
-		perf_evsel__set_sample_bit(pos, TID);
1030
-		perf_evsel__set_sample_bit(pos, TIME);
1031
-		perf_evsel__set_sample_bit(pos, CPU);
1032
-		perf_evsel__set_sample_bit(pos, RAW);
1035
+		evsel__set_sample_bit(pos, TID);
1036
+		evsel__set_sample_bit(pos, TIME);
1037
+		evsel__set_sample_bit(pos, CPU);
1038
+		evsel__set_sample_bit(pos, RAW);
10331039 		/* make sure these are *not*; want as small a sample as possible */
1034
-		perf_evsel__reset_sample_bit(pos, PERIOD);
1035
-		perf_evsel__reset_sample_bit(pos, IP);
1036
-		perf_evsel__reset_sample_bit(pos, CALLCHAIN);
1037
-		perf_evsel__reset_sample_bit(pos, ADDR);
1038
-		perf_evsel__reset_sample_bit(pos, READ);
1040
+		evsel__reset_sample_bit(pos, PERIOD);
1041
+		evsel__reset_sample_bit(pos, IP);
1042
+		evsel__reset_sample_bit(pos, CALLCHAIN);
1043
+		evsel__reset_sample_bit(pos, ADDR);
1044
+		evsel__reset_sample_bit(pos, READ);
10391045 		attr->mmap = 0;
10401046 		attr->comm = 0;
10411047 		attr->task = 0;
....@@ -1049,17 +1055,17 @@
10491055 		attr->disabled = 1;
10501056 	}
10511057 
1052
-	err = perf_evlist__open(evlist);
1058
+	err = evlist__open(evlist);
10531059 	if (err < 0) {
10541060 		printf("Couldn't create the events: %s\n",
10551061 		       str_error_r(errno, sbuf, sizeof(sbuf)));
10561062 		goto out;
10571063 	}
10581064 
1059
-	if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages) < 0) {
1065
+	if (evlist__mmap(evlist, kvm->opts.mmap_pages) < 0) {
10601066 		ui__error("Failed to mmap the events: %s\n",
10611067 			  str_error_r(errno, sbuf, sizeof(sbuf)));
1062
-		perf_evlist__close(evlist);
1068
+		evlist__close(evlist);
10631069 		goto out;
10641070 	}
10651071 
....@@ -1081,18 +1087,16 @@
10811087 		.ordered_events		= true,
10821088 	};
10831089 	struct perf_data file = {
1084
-		.file      = {
1085
-			.path = kvm->file_name,
1086
-		},
1087
-		.mode      = PERF_DATA_MODE_READ,
1088
-		.force     = kvm->force,
1090
+		.path  = kvm->file_name,
1091
+		.mode  = PERF_DATA_MODE_READ,
1092
+		.force = kvm->force,
10891093 	};
10901094 
10911095 	kvm->tool = eops;
10921096 	kvm->session = perf_session__new(&file, false, &kvm->tool);
1093
-	if (!kvm->session) {
1097
+	if (IS_ERR(kvm->session)) {
10941098 		pr_err("Initializing perf session failed\n");
1095
-		return -1;
1099
+		return PTR_ERR(kvm->session);
10961100 	}
10971101 
10981102 	symbol__init(&kvm->session->header.env);
....@@ -1286,14 +1290,14 @@
12861290 }
12871291 
12881292 #ifdef HAVE_TIMERFD_SUPPORT
1289
-static struct perf_evlist *kvm_live_event_list(void)
1293
+static struct evlist *kvm_live_event_list(void)
12901294 {
1291
-	struct perf_evlist *evlist;
1295
+	struct evlist *evlist;
12921296 	char *tp, *name, *sys;
12931297 	int err = -1;
12941298 	const char * const *events_tp;
12951299 
1296
-	evlist = perf_evlist__new();
1300
+	evlist = evlist__new();
12971301 	if (evlist == NULL)
12981302 		return NULL;
12991303 
....@@ -1315,7 +1319,7 @@
13151319 		*name = '\0';
13161320 		name++;
13171321 
1318
-		if (perf_evlist__add_newtp(evlist, sys, name, NULL)) {
1322
+		if (evlist__add_newtp(evlist, sys, name, NULL)) {
13191323 			pr_err("Failed to add %s tracepoint to the list\n", *events_tp);
13201324 			free(tp);
13211325 			goto out;
....@@ -1328,7 +1332,7 @@
13281332 
13291333 out:
13301334 	if (err) {
1331
-		perf_evlist__delete(evlist);
1335
+		evlist__delete(evlist);
13321336 		evlist = NULL;
13331337 	}
13341338 
....@@ -1365,7 +1369,7 @@
13651369 			"show events other than"
13661370 			" HLT (x86 only) or Wait state (s390 only)"
13671371 			" that take longer than duration usecs"),
1368
-		OPT_UINTEGER(0, "proc-map-timeout", &kvm->opts.proc_map_timeout,
1372
+		OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout,
13691373 				"per thread proc mmap processing timeout in ms"),
13701374 		OPT_END()
13711375 	};
....@@ -1395,7 +1399,6 @@
13951399 	kvm->opts.target.uses_mmap = false;
13961400 	kvm->opts.target.uid_str = NULL;
13971401 	kvm->opts.target.uid = UINT_MAX;
1398
-	kvm->opts.proc_map_timeout = 500;
13991402 
14001403 	symbol__init(NULL);
14011404 	disable_buildid_cache();
....@@ -1446,16 +1449,15 @@
14461449 	 * perf session
14471450 	 */
14481451 	kvm->session = perf_session__new(&data, false, &kvm->tool);
1449
-	if (kvm->session == NULL) {
1450
-		err = -1;
1452
+	if (IS_ERR(kvm->session)) {
1453
+		err = PTR_ERR(kvm->session);
14511454 		goto out;
14521455 	}
14531456 	kvm->session->evlist = kvm->evlist;
14541457 	perf_session__set_id_hdr_size(kvm->session);
14551458 	ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true);
14561459 	machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target,
1457
-				    kvm->evlist->threads, false,
1458
-				    kvm->opts.proc_map_timeout, 1);
1460
+				    kvm->evlist->core.threads, false, 1);
14591461 	err = kvm_live_open_events(kvm);
14601462 	if (err)
14611463 		goto out;
....@@ -1465,7 +1467,7 @@
14651467 out:
14661468 	perf_session__delete(kvm->session);
14671469 	kvm->session = NULL;
1468
-	perf_evlist__delete(kvm->evlist);
1470
+	evlist__delete(kvm->evlist);
14691471 
14701472 	return err;
14711473 }
....@@ -1515,11 +1517,21 @@
15151517 }
15161518 #endif /* HAVE_KVM_STAT_SUPPORT */
15171519 
1520
+int __weak kvm_add_default_arch_event(int *argc __maybe_unused,
1521
+					const char **argv __maybe_unused)
1522
+{
1523
+	return 0;
1524
+}
1525
+
15181526 static int __cmd_record(const char *file_name, int argc, const char **argv)
15191527 {
1520
-	int rec_argc, i = 0, j;
1528
+	int rec_argc, i = 0, j, ret;
15211529 	const char **rec_argv;
15221530 
1531
+	ret = kvm_add_default_arch_event(&argc, argv);
1532
+	if (ret)
1533
+		return -EINVAL;
1534
+
15231535 	rec_argc = argc + 2;
15241536 	rec_argv = calloc(rec_argc + 1, sizeof(char *));
15251537 	rec_argv[i++] = strdup("record");