diff options
| -rw-r--r-- | tools/perf/builtin-kvm.c | 460 |
1 files changed, 253 insertions, 207 deletions
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index a28c9cad9048..260abc535b5b 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -32,16 +32,76 @@ struct event_key { int info; }; +struct kvm_event_stats { + u64 time; + struct stats stats; +}; + +struct kvm_event { + struct list_head hash_entry; + struct rb_node rb; + + struct event_key key; + + struct kvm_event_stats total; + + #define DEFAULT_VCPU_NUM 8 + int max_vcpu; + struct kvm_event_stats *vcpu; +}; + +typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int); + +struct kvm_event_key { + const char *name; + key_cmp_fun key; +}; + + +struct perf_kvm; + struct kvm_events_ops { bool (*is_begin_event)(struct perf_evsel *evsel, struct perf_sample *sample, struct event_key *key); bool (*is_end_event)(struct perf_evsel *evsel, struct perf_sample *sample, struct event_key *key); - void (*decode_key)(struct event_key *key, char decode[20]); + void (*decode_key)(struct perf_kvm *kvm, struct event_key *key, + char decode[20]); const char *name; }; +struct exit_reasons_table { + unsigned long exit_code; + const char *reason; +}; + +#define EVENTS_BITS 12 +#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS) + +struct perf_kvm { + struct perf_tool tool; + struct perf_session *session; + + const char *file_name; + const char *report_event; + const char *sort_key; + int trace_vcpu; + + struct exit_reasons_table *exit_reasons; + int exit_reasons_size; + const char *exit_reasons_isa; + + struct kvm_events_ops *events_ops; + key_cmp_fun compare; + struct list_head kvm_events_cache[EVENTS_CACHE_SIZE]; + u64 total_time; + u64 total_count; + + struct rb_root result; +}; + + static void exit_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample, struct event_key *key) @@ -78,45 +138,35 @@ static bool exit_event_end(struct perf_evsel *evsel, return kvm_entry_event(evsel); } -struct exit_reasons_table { - unsigned long exit_code; - const char *reason; -}; - -struct exit_reasons_table vmx_exit_reasons[] = { +static struct exit_reasons_table vmx_exit_reasons[] = { VMX_EXIT_REASONS }; -struct exit_reasons_table svm_exit_reasons[] = { +static struct exit_reasons_table svm_exit_reasons[] = { SVM_EXIT_REASONS }; -static int cpu_isa; - -static const char *get_exit_reason(u64 exit_code) +static const char *get_exit_reason(struct perf_kvm *kvm, u64 exit_code) { - int table_size = ARRAY_SIZE(svm_exit_reasons); - struct exit_reasons_table *table = svm_exit_reasons; - - if (cpu_isa == 1) { - table = vmx_exit_reasons; - table_size = ARRAY_SIZE(vmx_exit_reasons); - } + int i = kvm->exit_reasons_size; + struct exit_reasons_table *tbl = kvm->exit_reasons; - while (table_size--) { - if (table->exit_code == exit_code) - return table->reason; - table++; + while (i--) { + if (tbl->exit_code == exit_code) + return tbl->reason; + tbl++; } pr_err("unknown kvm exit code:%lld on %s\n", - (unsigned long long)exit_code, cpu_isa ? "VMX" : "SVM"); + (unsigned long long)exit_code, kvm->exit_reasons_isa); return "UNKNOWN"; } -static void exit_event_decode_key(struct event_key *key, char decode[20]) +static void exit_event_decode_key(struct perf_kvm *kvm, + struct event_key *key, + char decode[20]) { - const char *exit_reason = get_exit_reason(key->key); + const char *exit_reason = get_exit_reason(kvm, key->key); scnprintf(decode, 20, "%s", exit_reason); } @@ -128,11 +178,11 @@ static struct kvm_events_ops exit_events = { .name = "VM-EXIT" }; - /* - * For the mmio events, we treat: - * the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry - * the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...). - */ +/* + * For the mmio events, we treat: + * the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry + * the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...). + */ static void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample, struct event_key *key) { @@ -178,7 +228,9 @@ static bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample, return false; } -static void mmio_event_decode_key(struct event_key *key, char decode[20]) +static void mmio_event_decode_key(struct perf_kvm *kvm __maybe_unused, + struct event_key *key, + char decode[20]) { scnprintf(decode, 20, "%#lx:%s", (unsigned long)key->key, key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R"); @@ -219,7 +271,9 @@ static bool ioport_event_end(struct perf_evsel *evsel, return kvm_entry_event(evsel); } -static void ioport_event_decode_key(struct event_key *key, char decode[20]) +static void ioport_event_decode_key(struct perf_kvm *kvm __maybe_unused, + struct event_key *key, + char decode[20]) { scnprintf(decode, 20, "%#llx:%s", (unsigned long long)key->key, key->info ? "POUT" : "PIN"); @@ -232,64 +286,37 @@ static struct kvm_events_ops ioport_events = { .name = "IO Port Access" }; -static const char *report_event = "vmexit"; -struct kvm_events_ops *events_ops; - -static bool register_kvm_events_ops(void) +static bool register_kvm_events_ops(struct perf_kvm *kvm) { bool ret = true; - if (!strcmp(report_event, "vmexit")) - events_ops = &exit_events; - else if (!strcmp(report_event, "mmio")) - events_ops = &mmio_events; - else if (!strcmp(report_event, "ioport")) - events_ops = &ioport_events; + if (!strcmp(kvm->report_event, "vmexit")) + kvm->events_ops = &exit_events; + else if (!strcmp(kvm->report_event, "mmio")) + kvm->events_ops = &mmio_events; + else if (!strcmp(kvm->report_event, "ioport")) + kvm->events_ops = &ioport_events; else { - pr_err("Unknown report event:%s\n", report_event); + pr_err("Unknown report event:%s\n", kvm->report_event); ret = false; } return ret; } -struct kvm_event_stats { - u64 time; - struct stats stats; -}; - -struct kvm_event { - struct list_head hash_entry; - struct rb_node rb; - - struct event_key key; - - struct kvm_event_stats total; - - #define DEFAULT_VCPU_NUM 8 - int max_vcpu; - struct kvm_event_stats *vcpu; -}; - struct vcpu_event_record { int vcpu_id; u64 start_time; struct kvm_event *last_event; }; -#define EVENTS_BITS 12 -#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS) - -static u64 total_time; -static u64 total_count; -static struct list_head kvm_events_cache[EVENTS_CACHE_SIZE]; -static void init_kvm_event_record(void) +static void init_kvm_event_record(struct perf_kvm *kvm) { int i; for (i = 0; i < (int)EVENTS_CACHE_SIZE; i++) - INIT_LIST_HEAD(&kvm_events_cache[i]); + INIT_LIST_HEAD(&kvm->kvm_events_cache[i]); } static int kvm_events_hash_fn(u64 key) @@ -333,14 +360,15 @@ static struct kvm_event *kvm_alloc_init_event(struct event_key *key) return event; } -static struct kvm_event *find_create_kvm_event(struct event_key *key) +static struct kvm_event *find_create_kvm_event(struct perf_kvm *kvm, + struct event_key *key) { struct kvm_event *event; struct list_head *head; BUG_ON(key->key == INVALID_KEY); - head = &kvm_events_cache[kvm_events_hash_fn(key->key)]; + head = &kvm->kvm_events_cache[kvm_events_hash_fn(key->key)]; list_for_each_entry(event, head, hash_entry) if (event->key.key == key->key && event->key.info == key->info) return event; @@ -353,13 +381,14 @@ static struct kvm_event *find_create_kvm_event(struct event_key *key) return event; } -static bool handle_begin_event(struct vcpu_event_record *vcpu_record, +static bool handle_begin_event(struct perf_kvm *kvm, + struct vcpu_event_record *vcpu_record, struct event_key *key, u64 timestamp) { struct kvm_event *event = NULL; if (key->key != INVALID_KEY) - event = find_create_kvm_event(key); + event = find_create_kvm_event(kvm, key); vcpu_record->last_event = event; vcpu_record->start_time = timestamp; @@ -396,8 +425,10 @@ static bool update_kvm_event(struct kvm_event *event, int vcpu_id, return true; } -static bool handle_end_event(struct vcpu_event_record *vcpu_record, - struct event_key *key, u64 timestamp) +static bool handle_end_event(struct perf_kvm *kvm, + struct vcpu_event_record *vcpu_record, + struct event_key *key, + u64 timestamp) { struct kvm_event *event; u64 time_begin, time_diff; @@ -419,7 +450,7 @@ static bool handle_end_event(struct vcpu_event_record *vcpu_record, return true; if (!event) - event = find_create_kvm_event(key); + event = find_create_kvm_event(kvm, key); if (!event) return false; @@ -455,7 +486,9 @@ struct vcpu_event_record *per_vcpu_record(struct thread *thread, return thread->priv; } -static bool handle_kvm_event(struct thread *thread, struct perf_evsel *evsel, +static bool handle_kvm_event(struct perf_kvm *kvm, + struct thread *thread, + struct perf_evsel *evsel, struct perf_sample *sample) { struct vcpu_event_record *vcpu_record; @@ -465,22 +498,15 @@ static bool handle_kvm_event(struct thread *thread, struct perf_evsel *evsel, if (!vcpu_record) return true; - if (events_ops->is_begin_event(evsel, sample, &key)) - return handle_begin_event(vcpu_record, &key, sample->time); + if (kvm->events_ops->is_begin_event(evsel, sample, &key)) + return handle_begin_event(kvm, vcpu_record, &key, sample->time); - if (events_ops->is_end_event(evsel, sample, &key)) - return handle_end_event(vcpu_record, &key, sample->time); + if (kvm->events_ops->is_end_event(evsel, sample, &key)) + return handle_end_event(kvm, vcpu_record, &key, sample->time); return true; } -typedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int); -struct kvm_event_key { - const char *name; - key_cmp_fun key; -}; - -static int trace_vcpu = -1; #define GET_EVENT_KEY(func, field) \ static u64 get_event_ ##func(struct kvm_event *event, int vcpu) \ { \ @@ -515,29 +541,25 @@ static struct kvm_event_key keys[] = { { NULL, NULL } }; -static const char *sort_key = "sample"; -static key_cmp_fun compare; - -static bool select_key(void) +static bool select_key(struct perf_kvm *kvm) { int i; for (i = 0; keys[i].name; i++) { - if (!strcmp(keys[i].name, sort_key)) { - compare = keys[i].key; + if (!strcmp(keys[i].name, kvm->sort_key)) { + kvm->compare = keys[i].key; return true; } } - pr_err("Unknown compare key:%s\n", sort_key); + pr_err("Unknown compare key:%s\n", kvm->sort_key); return false; } -static struct rb_root result; -static void insert_to_result(struct kvm_event *event, key_cmp_fun bigger, - int vcpu) +static void insert_to_result(struct rb_root *result, struct kvm_event *event, + key_cmp_fun bigger, int vcpu) { - struct rb_node **rb = &result.rb_node; + struct rb_node **rb = &result->rb_node; struct rb_node *parent = NULL; struct kvm_event *p; @@ -552,13 +574,15 @@ static void insert_to_result(struct kvm_event *event, key_cmp_fun bigger, } rb_link_node(&event->rb, parent, rb); - rb_insert_color(&event->rb, &result); + rb_insert_color(&event->rb, result); } -static void update_total_count(struct kvm_event *event, int vcpu) +static void update_total_count(struct perf_kvm *kvm, struct kvm_event *event) { - total_count += get_event_count(event, vcpu); - total_time += get_event_time(event, vcpu); + int vcpu = kvm->trace_vcpu; + + kvm->total_count += get_event_count(event, vcpu); + kvm->total_time += get_event_time(event, vcpu); } static bool event_is_valid(struct kvm_event *event, int vcpu) @@ -566,28 +590,30 @@ static bool event_is_valid(struct kvm_event *event, int vcpu) return !!get_event_count(event, vcpu); } -static void sort_result(int vcpu) +static void sort_result(struct perf_kvm *kvm) { unsigned int i; + int vcpu = kvm->trace_vcpu; struct kvm_event *event; for (i = 0; i < EVENTS_CACHE_SIZE; i++) - list_for_each_entry(event, &kvm_events_cache[i], hash_entry) + list_for_each_entry(event, &kvm->kvm_events_cache[i], hash_entry) if (event_is_valid(event, vcpu)) { - update_total_count(event, vcpu); - insert_to_result(event, compare, vcpu); + update_total_count(kvm, event); + insert_to_result(&kvm->result, event, + kvm->compare, vcpu); } } /* returns left most element of result, and erase it */ -static struct kvm_event *pop_from_result(void) +static struct kvm_event *pop_from_result(struct rb_root *result) { - struct rb_node *node = rb_first(&result); + struct rb_node *node = rb_first(result); if (!node) return NULL; - rb_erase(node, &result); + rb_erase(node, result); return container_of(node, struct kvm_event, rb); } @@ -601,14 +627,15 @@ static void print_vcpu_info(int vcpu) pr_info("VCPU %d:\n\n", vcpu); } -static void print_result(int vcpu) +static void print_result(struct perf_kvm *kvm) { char decode[20]; struct kvm_event *event; + int vcpu = kvm->trace_vcpu; pr_info("\n\n"); print_vcpu_info(vcpu); - pr_info("%20s ", events_ops->name); + pr_info("%20s ", kvm->events_ops->name); pr_info("%10s ", "Samples"); pr_info("%9s ", "Samples%"); @@ -616,33 +643,34 @@ static void print_result(int vcpu) pr_info("%16s ", "Avg time"); pr_info("\n\n"); - while ((event = pop_from_result())) { + while ((event = pop_from_result(&kvm->result))) { u64 ecount, etime; ecount = get_event_count(event, vcpu); etime = get_event_time(event, vcpu); - events_ops->decode_key(&event->key, decode); + kvm->events_ops->decode_key(kvm, &event->key, decode); pr_info("%20s ", decode); pr_info("%10llu ", (unsigned long long)ecount); - pr_info("%8.2f%% ", (double)ecount / total_count * 100); - pr_info("%8.2f%% ", (double)etime / total_time * 100); + pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); + pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3, kvm_event_rel_stddev(vcpu, event)); pr_info("\n"); } pr_info("\nTotal Samples:%lld, Total events handled time:%.2fus.\n\n", - (unsigned long long)total_count, total_time / 1e3); + (unsigned long long)kvm->total_count, kvm->total_time / 1e3); } -static int process_sample_event(struct perf_tool *tool __maybe_unused, +static int process_sample_event(struct perf_tool *tool, union perf_event *event, struct perf_sample *sample, struct perf_evsel *evsel, struct machine *machine) { struct thread *thread = machine__findnew_thread(machine, sample->tid); + struct perf_kvm *kvm = container_of(tool, struct perf_kvm, tool); if (thread == NULL) { pr_debug("problem processing %d event, skipping it.\n", @@ -650,18 +678,12 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused, return -1; } - if (!handle_kvm_event(thread, evsel, sample)) + if (!handle_kvm_event(kvm, thread, evsel, sample)) return -1; return 0; } -static struct perf_tool eops = { - .sample = process_sample_event, - .comm = perf_event__process_comm, - .ordered_samples = true, -}; - static int get_cpu_isa(struct perf_session *session) { char *cpuid = session->header.env.cpuid; @@ -679,34 +701,43 @@ static int get_cpu_isa(struct perf_session *session) return isa; } -static const char *file_name; - -static int read_events(void) +static int read_events(struct perf_kvm *kvm) { - struct perf_session *kvm_session; int ret; - kvm_session = perf_session__new(file_name, O_RDONLY, 0, false, &eops); - if (!kvm_session) { + struct perf_tool eops = { + .sample = process_sample_event, + .comm = perf_event__process_comm, + .ordered_samples = true, + }; + + kvm->tool = eops; + kvm->session = perf_session__new(kvm->file_name, O_RDONLY, 0, false, + &kvm->tool); + if (!kvm->session) { pr_err("Initializing perf session failed\n"); return -EINVAL; } - if (!perf_session__has_traces(kvm_session, "kvm record")) + if (!perf_session__has_traces(kvm->session, "kvm record")) return -EINVAL; /* * Do not use 'isa' recorded in kvm_exit tracepoint since it is not * traced in the old kernel. */ - ret = get_cpu_isa(kvm_session); + ret = get_cpu_isa(kvm->session); if (ret < 0) return ret; - cpu_isa = ret; + if (ret == 1) { + kvm->exit_reasons = vmx_exit_reasons; + kvm->exit_reasons_size = ARRAY_SIZE(vmx_exit_reasons); + kvm->exit_reasons_isa = "VMX"; + } - return perf_session__process_events(kvm_session, &eops); + return perf_session__process_events(kvm->session, &kvm->tool); } static bool verify_vcpu(int vcpu) @@ -719,28 +750,30 @@ static bool verify_vcpu(int vcpu) return true; } -static int kvm_events_report_vcpu(int vcpu) +static int kvm_events_report_vcpu(struct perf_kvm *kvm) { int ret = -EINVAL; + int vcpu = kvm->trace_vcpu; if (!verify_vcpu(vcpu)) goto exit; - if (!select_key()) + if (!select_key(kvm)) goto exit; - if (!register_kvm_events_ops()) + if (!register_kvm_events_ops(kvm)) goto exit; - init_kvm_event_record(); + init_kvm_event_record(kvm); setup_pager(); - ret = read_events(); + ret = read_events(kvm); if (ret) goto exit; - sort_result(vcpu); - print_result(vcpu); + sort_result(kvm); + print_result(kvm); + exit: return ret; } @@ -765,7 +798,7 @@ static const char * const record_args[] = { _p; \ }) -static int kvm_events_record(int argc, const char **argv) +static int kvm_events_record(struct perf_kvm *kvm, int argc, const char **argv) { unsigned int rec_argc, i, j; const char **rec_argv; @@ -780,7 +813,7 @@ static int kvm_events_record(int argc, const char **argv) rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]); rec_argv[i++] = STRDUP_FAIL_EXIT("-o"); - rec_argv[i++] = STRDUP_FAIL_EXIT(file_name); + rec_argv[i++] = STRDUP_FAIL_EXIT(kvm->file_name); for (j = 1; j < (unsigned int)argc; j++, i++) rec_argv[i] = argv[j]; @@ -788,24 +821,24 @@ static int kvm_events_record(int argc, const char **argv) return cmd_record(i, rec_argv, NULL); } -static const char * const kvm_events_report_usage[] = { - "perf kvm stat report [<options>]", - NULL -}; +static int kvm_events_report(struct perf_kvm *kvm, int argc, const char **argv) +{ + const struct option kvm_events_report_options[] = { + OPT_STRING(0, "event", &kvm->report_event, "report event", + "event for reporting: vmexit, mmio, ioport"), + OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, + "vcpu id to report"), + OPT_STRING('k', "key", &kvm->sort_key, "sort-key", + "key for sorting: sample(sort by samples number)" + " time (sort by avg time)"), + OPT_END() + }; -static const struct option kvm_events_report_options[] = { - OPT_STRING(0, "event", &report_event, "report event", - "event for reporting: vmexit, mmio, ioport"), - OPT_INTEGER(0, "vcpu", &trace_vcpu, - "vcpu id to report"), - OPT_STRING('k', "key", &sort_key, "sort-key", - "key for sorting: sample(sort by samples number)" - " time (sort by avg time)"), - OPT_END() -}; + const char * const kvm_events_report_usage[] = { + "perf kvm stat report [<options>]", + NULL + }; -static int kvm_events_report(int argc, const char **argv) -{ symbol__init(); if (argc) { @@ -817,7 +850,7 @@ static int kvm_events_report(int argc, const char **argv) kvm_events_report_options); } - return kvm_events_report_vcpu(trace_vcpu); + return kvm_events_report_vcpu(kvm); } static void print_kvm_stat_usage(void) @@ -831,7 +864,7 @@ static void print_kvm_stat_usage(void) printf("\nOtherwise, it is the alias of 'perf stat':\n"); } -static int kvm_cmd_stat(int argc, const char **argv) +static int kvm_cmd_stat(struct perf_kvm *kvm, int argc, const char **argv) { if (argc == 1) { print_kvm_stat_usage(); @@ -839,44 +872,16 @@ static int kvm_cmd_stat(int argc, const char **argv) } if (!strncmp(argv[1], "rec", 3)) - return kvm_events_record(argc - 1, argv + 1); + return kvm_events_record(kvm, argc - 1, argv + 1); if (!strncmp(argv[1], "rep", 3)) - return kvm_events_report(argc - 1 , argv + 1); + return kvm_events_report(kvm, argc - 1 , argv + 1); perf_stat: return cmd_stat(argc, argv, NULL); } -static char name_buffer[256]; - -static const char * const kvm_usage[] = { - "perf kvm [<options>] {top|record|report|diff|buildid-list|stat}", - NULL -}; - -static const struct option kvm_options[] = { - OPT_STRING('i', "input", &file_name, "file", - "Input file name"), - OPT_STRING('o', "output", &file_name, "file", - "Output file name"), - OPT_BOOLEAN(0, "guest", &perf_guest, - "Collect guest os data"), - OPT_BOOLEAN(0, "host", &perf_host, - "Collect host os data"), - OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory", - "guest mount directory under which every guest os" - " instance has a subdir"), - OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name, - "file", "file saving guest os vmlinux"), - OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms, - "file", "file saving guest os /proc/kallsyms"), - OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, - "file", "file saving guest os /proc/modules"), - OPT_END() -}; - -static int __cmd_record(int argc, const char **argv) +static int __cmd_record(struct perf_kvm *kvm, int argc, const char **argv) { int rec_argc, i = 0, j; const char **rec_argv; @@ -885,7 +890,7 @@ static int __cmd_record(int argc, const char **argv) rec_argv = calloc(rec_argc + 1, sizeof(char *)); rec_argv[i++] = strdup("record"); rec_argv[i++] = strdup("-o"); - rec_argv[i++] = strdup(file_name); + rec_argv[i++] = strdup(kvm->file_name); for (j = 1; j < argc; j++, i++) rec_argv[i] = argv[j]; @@ -894,7 +899,7 @@ static int __cmd_record(int argc, const char **argv) return cmd_record(i, rec_argv, NULL); } -static int __cmd_report(int argc, const char **argv) +static int __cmd_report(struct perf_kvm *kvm, int argc, const char **argv) { int rec_argc, i = 0, j; const char **rec_argv; @@ -903,7 +908,7 @@ static int __cmd_report(int argc, const char **argv) rec_argv = calloc(rec_argc + 1, sizeof(char *)); rec_argv[i++] = strdup("report"); rec_argv[i++] = strdup("-i"); - rec_argv[i++] = strdup(file_name); + rec_argv[i++] = strdup(kvm->file_name); for (j = 1; j < argc; j++, i++) rec_argv[i] = argv[j]; @@ -912,7 +917,7 @@ static int __cmd_report(int argc, const char **argv) return cmd_report(i, rec_argv, NULL); } -static int __cmd_buildid_list(int argc, const char **argv) +static int __cmd_buildid_list(struct perf_kvm *kvm, int argc, const char **argv) { int rec_argc, i = 0, j; const char **rec_argv; @@ -921,7 +926,7 @@ static int __cmd_buildid_list(int argc, const char **argv) rec_argv = calloc(rec_argc + 1, sizeof(char *)); rec_argv[i++] = strdup("buildid-list"); rec_argv[i++] = strdup("-i"); - rec_argv[i++] = strdup(file_name); + rec_argv[i++] = strdup(kvm->file_name); for (j = 1; j < argc; j++, i++) rec_argv[i] = argv[j]; @@ -932,6 +937,43 @@ static int __cmd_buildid_list(int argc, const char **argv) int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) { + struct perf_kvm kvm = { + .trace_vcpu = -1, + .report_event = "vmexit", + .sort_key = "sample", + + .exit_reasons = svm_exit_reasons, + .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons), + .exit_reasons_isa = "SVM", + }; + + const struct option kvm_options[] = { + OPT_STRING('i', "input", &kvm.file_name, "file", + "Input file name"), + OPT_STRING('o', "output", &kvm.file_name, "file", + "Output file name"), + OPT_BOOLEAN(0, "guest", &perf_guest, + "Collect guest os data"), + OPT_BOOLEAN(0, "host", &perf_host, + "Collect host os data"), + OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory", + "guest mount directory under which every guest os" + " instance has a subdir"), + OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name, + "file", "file saving guest os vmlinux"), + OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms, + "file", "file saving guest os /proc/kallsyms"), + OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, + "file", "file saving guest os /proc/modules"), + OPT_END() + }; + + + const char * const kvm_usage[] = { + "perf kvm [<options>] {top|record|report|diff|buildid-list|stat}", + NULL + }; + perf_host = 0; perf_guest = 1; @@ -943,28 +985,32 @@ int cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) if (!perf_host) perf_guest = 1; - if (!file_name) { + if (!kvm.file_name) { if (perf_host && !perf_guest) - sprintf(name_buffer, "perf.data.host"); + kvm.file_name = strdup("perf.data.host"); else if (!perf_host && perf_guest) - sprintf(name_buffer, "perf.data.guest"); + kvm.file_name = strdup("perf.data.guest"); else - sprintf(name_buffer, "perf.data.kvm"); - file_name = name_buffer; + kvm.file_name = strdup("perf.data.kvm"); + + if (!kvm.file_name) { + pr_err("Failed to allocate memory for filename\n"); + return -ENOMEM; + } } if (!strncmp(argv[0], "rec", 3)) - return __cmd_record(argc, argv); + return __cmd_record(&kvm, argc, argv); else if (!strncmp(argv[0], "rep", 3)) - return __cmd_report(argc, argv); + return __cmd_report(&kvm, argc, argv); else if (!strncmp(argv[0], "diff", 4)) return cmd_diff(argc, argv, NULL); else if (!strncmp(argv[0], "top", 3)) return cmd_top(argc, argv, NULL); else if (!strncmp(argv[0], "buildid-list", 12)) - return __cmd_buildid_list(argc, argv); + return __cmd_buildid_list(&kvm, argc, argv); else if (!strncmp(argv[0], "stat", 4)) - return kvm_cmd_stat(argc, argv); + return kvm_cmd_stat(&kvm, argc, argv); else usage_with_options(kvm_usage, kvm_options); |