1e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "builtin.h" 2e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "perf.h" 3e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 4e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/evsel.h" 5e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/evlist.h" 6e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/util.h" 7e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/cache.h" 8e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/symbol.h" 9e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/thread.h" 10e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/header.h" 11e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/session.h" 12e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/intlist.h" 13e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/parse-options.h" 14e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/trace-event.h" 15e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/debug.h" 16e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <lk/debugfs.h> 17e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/tool.h" 18e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/stat.h" 19e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include "util/top.h" 20e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 21e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <sys/prctl.h> 22e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <sys/timerfd.h> 23e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 24e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <termios.h> 25e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <semaphore.h> 26e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <pthread.h> 27e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <math.h> 28e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 29e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#if defined(__i386__) || defined(__x86_64__) 30e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <asm/svm.h> 31e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <asm/vmx.h> 32e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#include <asm/kvm.h> 33e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 34e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct event_key { 35e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng #define INVALID_KEY (~0ULL) 36e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 key; 37e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int info; 38e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 39e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 40e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct kvm_event_stats { 41e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 time; 42e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct stats stats; 43e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 44e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 45e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct kvm_event { 46e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct list_head hash_entry; 47e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct rb_node rb; 48e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 49e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key key; 50e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 51e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event_stats total; 52e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 53e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng #define DEFAULT_VCPU_NUM 8 54e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int max_vcpu; 55e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event_stats *vcpu; 56e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 57e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 58e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengtypedef int (*key_cmp_fun)(struct kvm_event*, struct kvm_event*, int); 59e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 60e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct kvm_event_key { 61e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *name; 62e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key_cmp_fun key; 63e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 64e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 65e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 66e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct perf_kvm_stat; 67e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 68e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct kvm_events_ops { 69e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng bool (*is_begin_event)(struct perf_evsel *evsel, 70e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, 71e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key); 72e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng bool (*is_end_event)(struct perf_evsel *evsel, 73e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, struct event_key *key); 74e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng void (*decode_key)(struct perf_kvm_stat *kvm, struct event_key *key, 75e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char decode[20]); 76e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *name; 77e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 78e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 79e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct exit_reasons_table { 80e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned long exit_code; 81e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *reason; 82e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 83e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 84e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define EVENTS_BITS 12 85e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define EVENTS_CACHE_SIZE (1UL << EVENTS_BITS) 86e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 87e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct perf_kvm_stat { 88e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_tool tool; 89e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_record_opts opts; 90e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_evlist *evlist; 91e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_session *session; 92e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 93e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *file_name; 94e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *report_event; 95e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *sort_key; 96e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int trace_vcpu; 97e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 98e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct exit_reasons_table *exit_reasons; 99e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int exit_reasons_size; 100e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *exit_reasons_isa; 101e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 102e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_events_ops *events_ops; 103e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key_cmp_fun compare; 104e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct list_head kvm_events_cache[EVENTS_CACHE_SIZE]; 105e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 106e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 total_time; 107e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 total_count; 108e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 lost_events; 109e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 duration; 110e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 111e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *pid_str; 112e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct intlist *pid_list; 113e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 114e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct rb_root result; 115e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 116e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int timerfd; 117e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int display_time; 118e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng bool live; 119e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 120e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 121e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 122e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void exit_event_get_key(struct perf_evsel *evsel, 123e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, 124e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key) 125e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 126e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->info = 0; 127e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->key = perf_evsel__intval(evsel, sample, "exit_reason"); 128e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 129e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 130e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool kvm_exit_event(struct perf_evsel *evsel) 131e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 132e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return !strcmp(evsel->name, "kvm:kvm_exit"); 133e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 134e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 135e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool exit_event_begin(struct perf_evsel *evsel, 136e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, struct event_key *key) 137e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 138e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm_exit_event(evsel)) { 139e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit_event_get_key(evsel, sample, key); 140e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 141e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 142e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 143e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 144e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 145e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 146e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool kvm_entry_event(struct perf_evsel *evsel) 147e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 148e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return !strcmp(evsel->name, "kvm:kvm_entry"); 149e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 150e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 151e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool exit_event_end(struct perf_evsel *evsel, 152e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 153e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key __maybe_unused) 154e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 155e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return kvm_entry_event(evsel); 156e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 157e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 158e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct exit_reasons_table vmx_exit_reasons[] = { 159e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng VMX_EXIT_REASONS 160e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 161e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 162e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct exit_reasons_table svm_exit_reasons[] = { 163e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng SVM_EXIT_REASONS 164e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 165e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 166e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic const char *get_exit_reason(struct perf_kvm_stat *kvm, u64 exit_code) 167e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 168e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int i = kvm->exit_reasons_size; 169e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct exit_reasons_table *tbl = kvm->exit_reasons; 170e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 171e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (i--) { 172e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (tbl->exit_code == exit_code) 173e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return tbl->reason; 174e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tbl++; 175e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 176e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 177e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("unknown kvm exit code:%lld on %s\n", 178e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (unsigned long long)exit_code, kvm->exit_reasons_isa); 179e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return "UNKNOWN"; 180e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 181e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 182e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void exit_event_decode_key(struct perf_kvm_stat *kvm, 183e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key, 184e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char decode[20]) 185e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 186e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *exit_reason = get_exit_reason(kvm, key->key); 187e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 188e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng scnprintf(decode, 20, "%s", exit_reason); 189e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 190e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 191e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct kvm_events_ops exit_events = { 192e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .is_begin_event = exit_event_begin, 193e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .is_end_event = exit_event_end, 194e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .decode_key = exit_event_decode_key, 195e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .name = "VM-EXIT" 196e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 197e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 198e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng/* 199e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * For the mmio events, we treat: 200e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * the time of MMIO write: kvm_mmio(KVM_TRACE_MMIO_WRITE...) -> kvm_entry 201e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * the time of MMIO read: kvm_exit -> kvm_mmio(KVM_TRACE_MMIO_READ...). 202e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 203e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void mmio_event_get_key(struct perf_evsel *evsel, struct perf_sample *sample, 204e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key) 205e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 206e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->key = perf_evsel__intval(evsel, sample, "gpa"); 207e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->info = perf_evsel__intval(evsel, sample, "type"); 208e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 209e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 210e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define KVM_TRACE_MMIO_READ_UNSATISFIED 0 211e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define KVM_TRACE_MMIO_READ 1 212e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define KVM_TRACE_MMIO_WRITE 2 213e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 214e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool mmio_event_begin(struct perf_evsel *evsel, 215e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, struct event_key *key) 216e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 217e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* MMIO read begin event in kernel. */ 218e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm_exit_event(evsel)) 219e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 220e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 221e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* MMIO write begin event in kernel. */ 222e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(evsel->name, "kvm:kvm_mmio") && 223e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_WRITE) { 224e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mmio_event_get_key(evsel, sample, key); 225e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 226e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 227e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 228e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 229e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 230e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 231e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool mmio_event_end(struct perf_evsel *evsel, struct perf_sample *sample, 232e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key) 233e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 234e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* MMIO write end event in kernel. */ 235e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm_entry_event(evsel)) 236e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 237e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 238e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* MMIO read end event in kernel.*/ 239e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(evsel->name, "kvm:kvm_mmio") && 240e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__intval(evsel, sample, "type") == KVM_TRACE_MMIO_READ) { 241e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng mmio_event_get_key(evsel, sample, key); 242e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 243e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 244e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 245e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 246e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 247e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 248e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void mmio_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, 249e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key, 250e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char decode[20]) 251e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 252e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng scnprintf(decode, 20, "%#lx:%s", (unsigned long)key->key, 253e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->info == KVM_TRACE_MMIO_WRITE ? "W" : "R"); 254e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 255e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 256e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct kvm_events_ops mmio_events = { 257e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .is_begin_event = mmio_event_begin, 258e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .is_end_event = mmio_event_end, 259e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .decode_key = mmio_event_decode_key, 260e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .name = "MMIO Access" 261e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 262e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 263e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* The time of emulation pio access is from kvm_pio to kvm_entry. */ 264e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void ioport_event_get_key(struct perf_evsel *evsel, 265e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, 266e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key) 267e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 268e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->key = perf_evsel__intval(evsel, sample, "port"); 269e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->info = perf_evsel__intval(evsel, sample, "rw"); 270e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 271e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 272e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool ioport_event_begin(struct perf_evsel *evsel, 273e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, 274e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key) 275e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 276e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(evsel->name, "kvm:kvm_pio")) { 277e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ioport_event_get_key(evsel, sample, key); 278e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 279e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 280e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 281e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 282e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 283e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 284e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool ioport_event_end(struct perf_evsel *evsel, 285e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 286e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key __maybe_unused) 287e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 288e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return kvm_entry_event(evsel); 289e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 290e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 291e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void ioport_event_decode_key(struct perf_kvm_stat *kvm __maybe_unused, 292e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key, 293e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char decode[20]) 294e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 295e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng scnprintf(decode, 20, "%#llx:%s", (unsigned long long)key->key, 296e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key->info ? "POUT" : "PIN"); 297e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 298e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 299e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct kvm_events_ops ioport_events = { 300e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .is_begin_event = ioport_event_begin, 301e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .is_end_event = ioport_event_end, 302e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .decode_key = ioport_event_decode_key, 303e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .name = "IO Port Access" 304e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 305e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 306e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool register_kvm_events_ops(struct perf_kvm_stat *kvm) 307e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 308e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng bool ret = true; 309e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 310e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(kvm->report_event, "vmexit")) 311e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->events_ops = &exit_events; 312e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!strcmp(kvm->report_event, "mmio")) 313e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->events_ops = &mmio_events; 314e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!strcmp(kvm->report_event, "ioport")) 315e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->events_ops = &ioport_events; 316e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else { 317e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Unknown report event:%s\n", kvm->report_event); 318e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret = false; 319e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 320e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 321e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return ret; 322e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 323e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 324e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct vcpu_event_record { 325e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int vcpu_id; 326e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 start_time; 327e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *last_event; 328e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 329e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 330e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 331e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void init_kvm_event_record(struct perf_kvm_stat *kvm) 332e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 333e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int i; 334e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 335e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; i < EVENTS_CACHE_SIZE; i++) 336e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng INIT_LIST_HEAD(&kvm->kvm_events_cache[i]); 337e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 338e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 339e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void clear_events_cache_stats(struct list_head *kvm_events_cache) 340e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 341e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct list_head *head; 342e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *event; 343e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int i; 344e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int j; 345e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 346e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; i < EVENTS_CACHE_SIZE; i++) { 347e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng head = &kvm_events_cache[i]; 348e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng list_for_each_entry(event, head, hash_entry) { 349e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* reset stats for event */ 350e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->total.time = 0; 351e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng init_stats(&event->total.stats); 352e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 353e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 0; j < event->max_vcpu; ++j) { 354e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->vcpu[j].time = 0; 355e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng init_stats(&event->vcpu[j].stats); 356e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 357e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 358e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 359e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 360e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 361e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int kvm_events_hash_fn(u64 key) 362e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 363e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return key & (EVENTS_CACHE_SIZE - 1); 364e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 365e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 366e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool kvm_event_expand(struct kvm_event *event, int vcpu_id) 367e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 368e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int old_max_vcpu = event->max_vcpu; 369e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng void *prev; 370e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 371e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (vcpu_id < event->max_vcpu) 372e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 373e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 374e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (event->max_vcpu <= vcpu_id) 375e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->max_vcpu += DEFAULT_VCPU_NUM; 376e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 377e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng prev = event->vcpu; 378e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->vcpu = realloc(event->vcpu, 379e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->max_vcpu * sizeof(*event->vcpu)); 380e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!event->vcpu) { 381e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(prev); 382e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Not enough memory\n"); 383e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 384e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 385e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 386e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memset(event->vcpu + old_max_vcpu, 0, 387e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (event->max_vcpu - old_max_vcpu) * sizeof(*event->vcpu)); 388e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 389e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 390e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 391e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct kvm_event *kvm_alloc_init_event(struct event_key *key) 392e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 393e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *event; 394e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 395e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event = zalloc(sizeof(*event)); 396e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!event) { 397e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Not enough memory\n"); 398e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return NULL; 399e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 400e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 401e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->key = *key; 402e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return event; 403e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 404e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 405e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct kvm_event *find_create_kvm_event(struct perf_kvm_stat *kvm, 406e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key) 407e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 408e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *event; 409e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct list_head *head; 410e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 411e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng BUG_ON(key->key == INVALID_KEY); 412e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 413e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng head = &kvm->kvm_events_cache[kvm_events_hash_fn(key->key)]; 414e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng list_for_each_entry(event, head, hash_entry) { 415e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (event->key.key == key->key && event->key.info == key->info) 416e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return event; 417e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 418e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 419e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event = kvm_alloc_init_event(key); 420e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!event) 421e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return NULL; 422e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 423e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng list_add(&event->hash_entry, head); 424e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return event; 425e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 426e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 427e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool handle_begin_event(struct perf_kvm_stat *kvm, 428e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct vcpu_event_record *vcpu_record, 429e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key, u64 timestamp) 430e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 431e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *event = NULL; 432e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 433e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (key->key != INVALID_KEY) 434e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event = find_create_kvm_event(kvm, key); 435e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 436e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu_record->last_event = event; 437e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu_record->start_time = timestamp; 438e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 439e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 440e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 441e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void 442e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengkvm_update_event_stats(struct kvm_event_stats *kvm_stats, u64 time_diff) 443e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 444e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_stats->time += time_diff; 445e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng update_stats(&kvm_stats->stats, time_diff); 446e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 447e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 448e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic double kvm_event_rel_stddev(int vcpu_id, struct kvm_event *event) 449e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 450e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event_stats *kvm_stats = &event->total; 451e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 452e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (vcpu_id != -1) 453e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_stats = &event->vcpu[vcpu_id]; 454e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 455e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return rel_stddev_stats(stddev_stats(&kvm_stats->stats), 456e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng avg_stats(&kvm_stats->stats)); 457e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 458e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 459e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool update_kvm_event(struct kvm_event *event, int vcpu_id, 460e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 time_diff) 461e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 462e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (vcpu_id == -1) { 463e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_update_event_stats(&event->total, time_diff); 464e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 465e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 466e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 467e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!kvm_event_expand(event, vcpu_id)) 468e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 469e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 470e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_update_event_stats(&event->vcpu[vcpu_id], time_diff); 471e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 472e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 473e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 474e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool handle_end_event(struct perf_kvm_stat *kvm, 475e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct vcpu_event_record *vcpu_record, 476e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key *key, 477e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample) 478e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 479e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *event; 480e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 time_begin, time_diff; 481e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int vcpu; 482e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 483e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->trace_vcpu == -1) 484e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu = -1; 485e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 486e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu = vcpu_record->vcpu_id; 487e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 488e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event = vcpu_record->last_event; 489e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng time_begin = vcpu_record->start_time; 490e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 491e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* The begin event is not caught. */ 492e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!time_begin) 493e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 494e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 495e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 496e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * In some case, the 'begin event' only records the start timestamp, 497e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * the actual event is recognized in the 'end event' (e.g. mmio-event). 498e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 499e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 500e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* Both begin and end events did not get the key. */ 501e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!event && key->key == INVALID_KEY) 502e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 503e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 504e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!event) 505e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event = find_create_kvm_event(kvm, key); 506e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 507e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!event) 508e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 509e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 510e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu_record->last_event = NULL; 511e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu_record->start_time = 0; 512e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 513e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* seems to happen once in a while during live mode */ 514e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (sample->time < time_begin) { 515e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("End time before begin time; skipping event.\n"); 516e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 517e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 518e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 519e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng time_diff = sample->time - time_begin; 520e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 521e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->duration && time_diff > kvm->duration) { 522e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char decode[32]; 523e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 524e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->events_ops->decode_key(kvm, &event->key, decode); 525e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (strcmp(decode, "HLT")) { 526e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%" PRIu64 " VM %d, vcpu %d: %s event took %" PRIu64 "usec\n", 527e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sample->time, sample->pid, vcpu_record->vcpu_id, 528e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng decode, time_diff/1000); 529e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 530e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 531e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 532e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return update_kvm_event(event, vcpu, time_diff); 533e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 534e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 535e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic 536e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstruct vcpu_event_record *per_vcpu_record(struct thread *thread, 537e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_evsel *evsel, 538e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample) 539e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 540e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* Only kvm_entry records vcpu id. */ 541e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!thread->priv && kvm_entry_event(evsel)) { 542e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct vcpu_event_record *vcpu_record; 543e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 544e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu_record = zalloc(sizeof(*vcpu_record)); 545e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!vcpu_record) { 546e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("%s: Not enough memory\n", __func__); 547e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return NULL; 548e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 549e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 550e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu_record->vcpu_id = perf_evsel__intval(evsel, sample, "vcpu_id"); 551e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng thread->priv = vcpu_record; 552e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 553e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 554e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return thread->priv; 555e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 556e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 557e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool handle_kvm_event(struct perf_kvm_stat *kvm, 558e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct thread *thread, 559e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_evsel *evsel, 560e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample) 561e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 562e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct vcpu_event_record *vcpu_record; 563e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct event_key key = {.key = INVALID_KEY}; 564e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 565e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng vcpu_record = per_vcpu_record(thread, evsel, sample); 566e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!vcpu_record) 567e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 568e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 569e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* only process events for vcpus user cares about */ 570e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if ((kvm->trace_vcpu != -1) && 571e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng (kvm->trace_vcpu != vcpu_record->vcpu_id)) 572e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 573e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 574e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->events_ops->is_begin_event(evsel, sample, &key)) 575e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return handle_begin_event(kvm, vcpu_record, &key, sample->time); 576e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 577e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->events_ops->is_end_event(evsel, sample, &key)) 578e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return handle_end_event(kvm, vcpu_record, &key, sample); 579e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 580e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 581e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 582e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 583e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define GET_EVENT_KEY(func, field) \ 584e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic u64 get_event_ ##func(struct kvm_event *event, int vcpu) \ 585e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ \ 586e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (vcpu == -1) \ 587e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return event->total.field; \ 588e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng \ 589e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (vcpu >= event->max_vcpu) \ 590e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; \ 591e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng \ 592e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return event->vcpu[vcpu].field; \ 593e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 594e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 595e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define COMPARE_EVENT_KEY(func, field) \ 596e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen ChengGET_EVENT_KEY(func, field) \ 597e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int compare_kvm_event_ ## func(struct kvm_event *one, \ 598e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *two, int vcpu)\ 599e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ \ 600e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return get_event_ ##func(one, vcpu) > \ 601e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng get_event_ ##func(two, vcpu); \ 602e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 603e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 604e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen ChengGET_EVENT_KEY(time, time); 605e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen ChengCOMPARE_EVENT_KEY(count, stats.n); 606e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen ChengCOMPARE_EVENT_KEY(mean, stats.mean); 607e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen ChengGET_EVENT_KEY(max, stats.max); 608e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen ChengGET_EVENT_KEY(min, stats.min); 609e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 610e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define DEF_SORT_NAME_KEY(name, compare_key) \ 611e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { #name, compare_kvm_event_ ## compare_key } 612e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 613e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct kvm_event_key keys[] = { 614e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng DEF_SORT_NAME_KEY(sample, count), 615e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng DEF_SORT_NAME_KEY(time, mean), 616e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng { NULL, NULL } 617e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 618e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 619e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool select_key(struct perf_kvm_stat *kvm) 620e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 621e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int i; 622e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 623e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; keys[i].name; i++) { 624e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strcmp(keys[i].name, kvm->sort_key)) { 625e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->compare = keys[i].key; 626e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 627e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 628e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 629e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 630e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Unknown compare key:%s\n", kvm->sort_key); 631e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 632e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 633e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 634e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void insert_to_result(struct rb_root *result, struct kvm_event *event, 635e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng key_cmp_fun bigger, int vcpu) 636e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 637e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct rb_node **rb = &result->rb_node; 638e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct rb_node *parent = NULL; 639e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *p; 640e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 641e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (*rb) { 642e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng p = container_of(*rb, struct kvm_event, rb); 643e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng parent = *rb; 644e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 645e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (bigger(event, p, vcpu)) 646e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rb = &(*rb)->rb_left; 647e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 648e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rb = &(*rb)->rb_right; 649e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 650e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 651e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rb_link_node(&event->rb, parent, rb); 652e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rb_insert_color(&event->rb, result); 653e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 654e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 655e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void 656e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengupdate_total_count(struct perf_kvm_stat *kvm, struct kvm_event *event) 657e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 658e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int vcpu = kvm->trace_vcpu; 659e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 660e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->total_count += get_event_count(event, vcpu); 661e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->total_time += get_event_time(event, vcpu); 662e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 663e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 664e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool event_is_valid(struct kvm_event *event, int vcpu) 665e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 666e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return !!get_event_count(event, vcpu); 667e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 668e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 669e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void sort_result(struct perf_kvm_stat *kvm) 670e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 671e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int i; 672e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int vcpu = kvm->trace_vcpu; 673e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *event; 674e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 675e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; i < EVENTS_CACHE_SIZE; i++) { 676e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng list_for_each_entry(event, &kvm->kvm_events_cache[i], hash_entry) { 677e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (event_is_valid(event, vcpu)) { 678e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng update_total_count(kvm, event); 679e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng insert_to_result(&kvm->result, event, 680e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->compare, vcpu); 681e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 682e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 683e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 684e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 685e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 686e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng/* returns left most element of result, and erase it */ 687e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct kvm_event *pop_from_result(struct rb_root *result) 688e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 689e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct rb_node *node = rb_first(result); 690e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 691e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!node) 692e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return NULL; 693e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 694e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rb_erase(node, result); 695e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return container_of(node, struct kvm_event, rb); 696e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 697e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 698e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void print_vcpu_info(struct perf_kvm_stat *kvm) 699e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 700e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int vcpu = kvm->trace_vcpu; 701e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 702e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("Analyze events for "); 703e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 704e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->live) { 705e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->opts.target.system_wide) 706e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("all VMs, "); 707e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (kvm->opts.target.pid) 708e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("pid(s) %s, ", kvm->opts.target.pid); 709e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 710e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("dazed and confused on what is monitored, "); 711e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 712e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 713e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (vcpu == -1) 714e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("all VCPUs:\n\n"); 715e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 716e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("VCPU %d:\n\n", vcpu); 717e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 718e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 719e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void show_timeofday(void) 720e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 721e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char date[64]; 722e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct timeval tv; 723e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct tm ltime; 724e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 725e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng gettimeofday(&tv, NULL); 726e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (localtime_r(&tv.tv_sec, <ime)) { 727e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng strftime(date, sizeof(date), "%H:%M:%S", <ime); 728e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%s.%06ld", date, tv.tv_usec); 729e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else 730e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("00:00:00.000000"); 731e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 732e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return; 733e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 734e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 735e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void print_result(struct perf_kvm_stat *kvm) 736e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 737e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char decode[20]; 738e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct kvm_event *event; 739e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int vcpu = kvm->trace_vcpu; 740e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 741e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->live) { 742e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng puts(CONSOLE_CLEAR); 743e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng show_timeofday(); 744e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 745e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 746e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("\n\n"); 747e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng print_vcpu_info(kvm); 748e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%20s ", kvm->events_ops->name); 749e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%10s ", "Samples"); 750e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%9s ", "Samples%"); 751e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 752e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%9s ", "Time%"); 753e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%10s ", "Min Time"); 754e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%10s ", "Max Time"); 755e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%16s ", "Avg time"); 756e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("\n\n"); 757e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 758e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while ((event = pop_from_result(&kvm->result))) { 759e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 ecount, etime, max, min; 760e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 761e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ecount = get_event_count(event, vcpu); 762e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng etime = get_event_time(event, vcpu); 763e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng max = get_event_max(event, vcpu); 764e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng min = get_event_min(event, vcpu); 765e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 766e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->events_ops->decode_key(kvm, &event->key, decode); 767e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%20s ", decode); 768e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%10llu ", (unsigned long long)ecount); 769e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100); 770e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100); 771e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%8" PRIu64 "us ", min / 1000); 772e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%8" PRIu64 "us ", max / 1000); 773e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3, 774e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_event_rel_stddev(vcpu, event)); 775e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("\n"); 776e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 777e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 778e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("\nTotal Samples:%" PRIu64 ", Total events handled time:%.2fus.\n\n", 779e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->total_count, kvm->total_time / 1e3); 780e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 781e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->lost_events) 782e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events); 783e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 784e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 785e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int process_lost_event(struct perf_tool *tool, 786e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event __maybe_unused, 787e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample __maybe_unused, 788e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine __maybe_unused) 789e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 790e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, tool); 791e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 792e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->lost_events++; 793e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 794e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 795e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 796e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool skip_sample(struct perf_kvm_stat *kvm, 797e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample) 798e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 799e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->pid_list && intlist__find(kvm->pid_list, sample->pid) == NULL) 800e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 801e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 802e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 803e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 804e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 805e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int process_sample_event(struct perf_tool *tool, 806e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event, 807e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample *sample, 808e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_evsel *evsel, 809e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct machine *machine) 810e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 811e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct thread *thread; 812e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_kvm_stat *kvm = container_of(tool, struct perf_kvm_stat, 813e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tool); 814e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 815e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (skip_sample(kvm, sample)) 816e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 817e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 818e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng thread = machine__findnew_thread(machine, sample->pid, sample->tid); 819e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (thread == NULL) { 820e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("problem processing %d event, skipping it.\n", 821e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng event->header.type); 822e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 823e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 824e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 825e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!handle_kvm_event(kvm, thread, evsel, sample)) 826e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 827e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 828e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 829e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 830e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 831e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int cpu_isa_config(struct perf_kvm_stat *kvm) 832e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 833e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char buf[64], *cpuid; 834e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err, isa; 835e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 836e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->live) { 837e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = get_cpuid(buf, sizeof(buf)); 838e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err != 0) { 839e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to look up CPU type (Intel or AMD)\n"); 840e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return err; 841e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 842e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cpuid = buf; 843e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } else 844e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng cpuid = kvm->session->header.env.cpuid; 845e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 846e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (strstr(cpuid, "Intel")) 847e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng isa = 1; 848e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (strstr(cpuid, "AMD")) 849e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng isa = 0; 850e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else { 851e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("CPU %s is not supported.\n", cpuid); 852e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -ENOTSUP; 853e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 854e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 855e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (isa == 1) { 856e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->exit_reasons = vmx_exit_reasons; 857e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->exit_reasons_size = ARRAY_SIZE(vmx_exit_reasons); 858e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->exit_reasons_isa = "VMX"; 859e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 860e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 861e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 862e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 863e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 864e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic bool verify_vcpu(int vcpu) 865e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 866e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (vcpu != -1 && vcpu < 0) { 867e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Invalid vcpu:%d.\n", vcpu); 868e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return false; 869e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 870e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 871e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return true; 872e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 873e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 874e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng/* keeping the max events to a modest level to keep 875e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * the processing of samples per mmap smooth. 876e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 877e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define PERF_KVM__MAX_EVENTS_PER_MMAP 25 878e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 879e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx, 880e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 *mmap_time) 881e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 882e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng union perf_event *event; 883e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_sample sample; 884e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng s64 n = 0; 885e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err; 886e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 887e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *mmap_time = ULLONG_MAX; 888e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while ((event = perf_evlist__mmap_read(kvm->evlist, idx)) != NULL) { 889e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = perf_evlist__parse_sample(kvm->evlist, event, &sample); 890e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err) { 891e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__mmap_consume(kvm->evlist, idx); 892e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to parse sample\n"); 893e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 894e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 895e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 896e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = perf_session_queue_event(kvm->session, event, &sample, 0); 897e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 898e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * FIXME: Here we can't consume the event, as perf_session_queue_event will 899e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * point to it, and it'll get possibly overwritten by the kernel. 900e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 901e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__mmap_consume(kvm->evlist, idx); 902e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 903e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err) { 904e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to enqueue sample: %d\n", err); 905e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 906e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 907e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 908e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* save time stamp of our first sample for this mmap */ 909e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (n == 0) 910e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *mmap_time = sample.time; 911e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 912e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* limit events per mmap handled all at once */ 913e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng n++; 914e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) 915e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 916e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 917e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 918e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return n; 919e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 920e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 921e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int perf_kvm__mmap_read(struct perf_kvm_stat *kvm) 922e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 923e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int i, err, throttled = 0; 924e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng s64 n, ntotal = 0; 925e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng u64 flush_time = ULLONG_MAX, mmap_time; 926e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 927e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; i < kvm->evlist->nr_mmaps; i++) { 928e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng n = perf_kvm__mmap_read_idx(kvm, i, &mmap_time); 929e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (n < 0) 930e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 931e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 932e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* flush time is going to be the minimum of all the individual 933e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * mmap times. Essentially, we flush all the samples queued up 934e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * from the last pass under our minimal start time -- that leaves 935e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * a very small race for samples to come in with a lower timestamp. 936e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * The ioctl to return the perf_clock timestamp should close the 937e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * race entirely. 938e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 939e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (mmap_time < flush_time) 940e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng flush_time = mmap_time; 941e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 942e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ntotal += n; 943e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (n == PERF_KVM__MAX_EVENTS_PER_MMAP) 944e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng throttled = 1; 945e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 946e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 947e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* flush queue after each round in which we processed events */ 948e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (ntotal) { 949e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->session->ordered_samples.next_flush = flush_time; 950e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = kvm->tool.finished_round(&kvm->tool, NULL, kvm->session); 951e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err) { 952e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->lost_events) 953e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_info("\nLost events: %" PRIu64 "\n\n", 954e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->lost_events); 955e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return err; 956e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 957e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 958e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 959e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return throttled; 960e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 961e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 962e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic volatile int done; 963e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 964e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void sig_handler(int sig __maybe_unused) 965e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 966e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng done = 1; 967e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 968e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 969e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int perf_kvm__timerfd_create(struct perf_kvm_stat *kvm) 970e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 971e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct itimerspec new_value; 972e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rc = -1; 973e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 974e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK); 975e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->timerfd < 0) { 976e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("timerfd_create failed\n"); 977e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 978e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 979e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 980e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng new_value.it_value.tv_sec = kvm->display_time; 981e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng new_value.it_value.tv_nsec = 0; 982e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng new_value.it_interval.tv_sec = kvm->display_time; 983e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng new_value.it_interval.tv_nsec = 0; 984e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 985e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (timerfd_settime(kvm->timerfd, 0, &new_value, NULL) != 0) { 986e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("timerfd_settime failed: %d\n", errno); 987e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng close(kvm->timerfd); 988e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 989e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 990e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 991e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rc = 0; 992e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 993e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return rc; 994e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 995e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 996e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int perf_kvm__handle_timerfd(struct perf_kvm_stat *kvm) 997e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 998e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng uint64_t c; 999e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rc; 1000e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1001e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rc = read(kvm->timerfd, &c, sizeof(uint64_t)); 1002e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (rc < 0) { 1003e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (errno == EAGAIN) 1004e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 1005e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1006e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to read timer fd: %d\n", errno); 1007e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 1008e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1009e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1010e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (rc != sizeof(uint64_t)) { 1011e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Error reading timer fd - invalid size returned\n"); 1012e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 1013e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1014e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1015e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (c != 1) 1016e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_debug("Missed timer beats: %" PRIu64 "\n", c-1); 1017e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1018e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* update display */ 1019e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sort_result(kvm); 1020e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng print_result(kvm); 1021e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1022e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* reset counts */ 1023e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng clear_events_cache_stats(kvm->kvm_events_cache); 1024e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->total_count = 0; 1025e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->total_time = 0; 1026e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->lost_events = 0; 1027e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1028e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 1029e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1030e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1031e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int fd_set_nonblock(int fd) 1032e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1033e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng long arg = 0; 1034e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1035e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng arg = fcntl(fd, F_GETFL); 1036e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (arg < 0) { 1037e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to get current flags for fd %d\n", fd); 1038e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 1039e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1040e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1041e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fcntl(fd, F_SETFL, arg | O_NONBLOCK) < 0) { 1042e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to set non-block option on fd %d\n", fd); 1043e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -1; 1044e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1045e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1046e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 1047e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1048e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1049e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic 1050e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint perf_kvm__handle_stdin(struct termios *tc_now, struct termios *tc_save) 1051e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1052e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int c; 1053e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1054e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tcsetattr(0, TCSANOW, tc_now); 1055e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng c = getc(stdin); 1056e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tcsetattr(0, TCSAFLUSH, tc_save); 1057e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1058e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (c == 'q') 1059e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 1; 1060e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1061e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 1062e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1063e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1064e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int kvm_events_live_report(struct perf_kvm_stat *kvm) 1065e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1066e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct pollfd *pollfds = NULL; 1067e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int nr_fds, nr_stdin, ret, err = -EINVAL; 1068e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct termios tc, save; 1069e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1070e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* live flag must be set first */ 1071e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->live = true; 1072e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1073e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret = cpu_isa_config(kvm); 1074e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (ret < 0) 1075e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return ret; 1076e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1077e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!verify_vcpu(kvm->trace_vcpu) || 1078e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng !select_key(kvm) || 1079e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng !register_kvm_events_ops(kvm)) { 1080e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1081e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1082e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1083e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng init_kvm_event_record(kvm); 1084e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1085e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tcgetattr(0, &save); 1086e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tc = save; 1087e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tc.c_lflag &= ~(ICANON | ECHO); 1088e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tc.c_cc[VMIN] = 0; 1089e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tc.c_cc[VTIME] = 0; 1090e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1091e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng signal(SIGINT, sig_handler); 1092e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng signal(SIGTERM, sig_handler); 1093e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1094e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* copy pollfds -- need to add timerfd and stdin */ 1095e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng nr_fds = kvm->evlist->nr_fds; 1096e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pollfds = zalloc(sizeof(struct pollfd) * (nr_fds + 2)); 1097e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!pollfds) { 1098e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = -ENOMEM; 1099e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1100e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1101e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng memcpy(pollfds, kvm->evlist->pollfd, 1102e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sizeof(struct pollfd) * kvm->evlist->nr_fds); 1103e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1104e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* add timer fd */ 1105e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (perf_kvm__timerfd_create(kvm) < 0) { 1106e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = -1; 1107e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1108e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1109e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1110e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pollfds[nr_fds].fd = kvm->timerfd; 1111e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pollfds[nr_fds].events = POLLIN; 1112e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng nr_fds++; 1113e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1114e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pollfds[nr_fds].fd = fileno(stdin); 1115e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pollfds[nr_fds].events = POLLIN; 1116e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng nr_stdin = nr_fds; 1117e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng nr_fds++; 1118e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (fd_set_nonblock(fileno(stdin)) != 0) 1119e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1120e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1121e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* everything is good - enable the events and process */ 1122e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__enable(kvm->evlist); 1123e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1124e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng while (!done) { 1125e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rc; 1126e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1127e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rc = perf_kvm__mmap_read(kvm); 1128e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (rc < 0) 1129e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng break; 1130e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1131e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = perf_kvm__handle_timerfd(kvm); 1132e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err) 1133e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1134e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1135e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (pollfds[nr_stdin].revents & POLLIN) 1136e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng done = perf_kvm__handle_stdin(&tc, &save); 1137e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1138e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!rc && !done) 1139e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = poll(pollfds, nr_fds, 100); 1140e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1141e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1142e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__disable(kvm->evlist); 1143e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1144e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err == 0) { 1145e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sort_result(kvm); 1146e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng print_result(kvm); 1147e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1148e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1149e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 1150e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->timerfd >= 0) 1151e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng close(kvm->timerfd); 1152e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1153e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (pollfds) 1154e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(pollfds); 1155e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1156e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return err; 1157e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1158e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1159e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int kvm_live_open_events(struct perf_kvm_stat *kvm) 1160e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1161e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err, rc = -1; 1162e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_evsel *pos; 1163e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_evlist *evlist = kvm->evlist; 1164e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1165e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__config(evlist, &kvm->opts); 1166e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1167e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 1168e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Note: exclude_{guest,host} do not apply here. 1169e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * This command processes KVM tracepoints from host only 1170e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 1171e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng list_for_each_entry(pos, &evlist->entries, node) { 1172e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_event_attr *attr = &pos->attr; 1173e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1174e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* make sure these *are* set */ 1175e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__set_sample_bit(pos, TID); 1176e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__set_sample_bit(pos, TIME); 1177e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__set_sample_bit(pos, CPU); 1178e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__set_sample_bit(pos, RAW); 1179e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* make sure these are *not*; want as small a sample as possible */ 1180e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__reset_sample_bit(pos, PERIOD); 1181e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__reset_sample_bit(pos, IP); 1182e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__reset_sample_bit(pos, CALLCHAIN); 1183e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__reset_sample_bit(pos, ADDR); 1184e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evsel__reset_sample_bit(pos, READ); 1185e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng attr->mmap = 0; 1186e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng attr->comm = 0; 1187e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng attr->task = 0; 1188e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1189e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng attr->sample_period = 1; 1190e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1191e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng attr->watermark = 0; 1192e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng attr->wakeup_events = 1000; 1193e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1194e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* will enable all once we are ready */ 1195e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng attr->disabled = 1; 1196e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1197e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1198e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = perf_evlist__open(evlist); 1199e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err < 0) { 1200e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("Couldn't create the events: %s\n", strerror(errno)); 1201e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1202e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1203e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1204e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (perf_evlist__mmap(evlist, kvm->opts.mmap_pages, false) < 0) { 1205e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ui__error("Failed to mmap the events: %s\n", strerror(errno)); 1206e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__close(evlist); 1207e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1208e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1209e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1210e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rc = 0; 1211e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1212e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 1213e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return rc; 1214e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1215e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1216e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int read_events(struct perf_kvm_stat *kvm) 1217e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1218e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int ret; 1219e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1220e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_tool eops = { 1221e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .sample = process_sample_event, 1222e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .comm = perf_event__process_comm, 1223e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .ordered_samples = true, 1224e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1225e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1226e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->tool = eops; 1227e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->session = perf_session__new(kvm->file_name, O_RDONLY, 0, false, 1228e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng &kvm->tool); 1229e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!kvm->session) { 1230e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Initializing perf session failed\n"); 1231e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -EINVAL; 1232e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1233e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1234e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!perf_session__has_traces(kvm->session, "kvm record")) 1235e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -EINVAL; 1236e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1237e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 1238e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * Do not use 'isa' recorded in kvm_exit tracepoint since it is not 1239e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * traced in the old kernel. 1240e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 1241e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret = cpu_isa_config(kvm); 1242e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (ret < 0) 1243e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return ret; 1244e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1245e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return perf_session__process_events(kvm->session, &kvm->tool); 1246e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1247e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1248e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int parse_target_str(struct perf_kvm_stat *kvm) 1249e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1250e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->pid_str) { 1251e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->pid_list = intlist__new(kvm->pid_str); 1252e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->pid_list == NULL) { 1253e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Error parsing process id string\n"); 1254e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -EINVAL; 1255e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1256e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1257e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1258e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 1259e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1260e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1261e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int kvm_events_report_vcpu(struct perf_kvm_stat *kvm) 1262e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1263e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int ret = -EINVAL; 1264e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int vcpu = kvm->trace_vcpu; 1265e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1266e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (parse_target_str(kvm) != 0) 1267e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto exit; 1268e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1269e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!verify_vcpu(vcpu)) 1270e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto exit; 1271e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1272e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!select_key(kvm)) 1273e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto exit; 1274e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1275e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!register_kvm_events_ops(kvm)) 1276e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto exit; 1277e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1278e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng init_kvm_event_record(kvm); 1279e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setup_pager(); 1280e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1281e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ret = read_events(kvm); 1282e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (ret) 1283e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto exit; 1284e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1285e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sort_result(kvm); 1286e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng print_result(kvm); 1287e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1288e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengexit: 1289e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return ret; 1290e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1291e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1292e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic const char * const kvm_events_tp[] = { 1293e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "kvm:kvm_entry", 1294e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "kvm:kvm_exit", 1295e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "kvm:kvm_mmio", 1296e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "kvm:kvm_pio", 1297e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng}; 1298e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1299e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#define STRDUP_FAIL_EXIT(s) \ 1300e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ({ char *_p; \ 1301e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng _p = strdup(s); \ 1302e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!_p) \ 1303e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -ENOMEM; \ 1304e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng _p; \ 1305e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }) 1306e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1307e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int 1308e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengkvm_events_record(struct perf_kvm_stat *kvm, int argc, const char **argv) 1309e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1310e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int rec_argc, i, j; 1311e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char **rec_argv; 1312e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char * const record_args[] = { 1313e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "record", 1314e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "-R", 1315e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "-m", "1024", 1316e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "-c", "1", 1317e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1318e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1319e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argc = ARRAY_SIZE(record_args) + argc + 2 + 1320e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 2 * ARRAY_SIZE(kvm_events_tp); 1321e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv = calloc(rec_argc + 1, sizeof(char *)); 1322e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1323e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (rec_argv == NULL) 1324e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -ENOMEM; 1325e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1326e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (i = 0; i < ARRAY_SIZE(record_args); i++) 1327e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i] = STRDUP_FAIL_EXIT(record_args[i]); 1328e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1329e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) { 1330e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = "-e"; 1331e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = STRDUP_FAIL_EXIT(kvm_events_tp[j]); 1332e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1333e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1334e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = STRDUP_FAIL_EXIT("-o"); 1335e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = STRDUP_FAIL_EXIT(kvm->file_name); 1336e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1337e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 1; j < (unsigned int)argc; j++, i++) 1338e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i] = argv[j]; 1339e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1340e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return cmd_record(i, rec_argv, NULL); 1341e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1342e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1343e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int 1344e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengkvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv) 1345e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1346e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const struct option kvm_events_report_options[] = { 1347e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING(0, "event", &kvm->report_event, "report event", 1348e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "event for reporting: vmexit, mmio, ioport"), 1349e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, 1350e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "vcpu id to report"), 1351e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING('k', "key", &kvm->sort_key, "sort-key", 1352e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "key for sorting: sample(sort by samples number)" 1353e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng " time (sort by avg time)"), 1354e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING('p', "pid", &kvm->pid_str, "pid", 1355e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "analyze events only for given process id(s)"), 1356e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_END() 1357e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1358e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1359e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char * const kvm_events_report_usage[] = { 1360e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "perf kvm stat report [<options>]", 1361e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng NULL 1362e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1363e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1364e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng symbol__init(); 1365e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1366e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (argc) { 1367e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argc = parse_options(argc, argv, 1368e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_events_report_options, 1369e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_events_report_usage, 0); 1370e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (argc) 1371e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage_with_options(kvm_events_report_usage, 1372e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_events_report_options); 1373e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1374e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1375e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return kvm_events_report_vcpu(kvm); 1376e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1377e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1378e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic struct perf_evlist *kvm_live_event_list(void) 1379e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1380e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_evlist *evlist; 1381e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char *tp, *name, *sys; 1382e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng unsigned int j; 1383e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err = -1; 1384e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1385e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng evlist = perf_evlist__new(); 1386e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (evlist == NULL) 1387e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return NULL; 1388e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1389e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 0; j < ARRAY_SIZE(kvm_events_tp); j++) { 1390e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1391e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng tp = strdup(kvm_events_tp[j]); 1392e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (tp == NULL) 1393e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1394e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1395e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* split tracepoint into subsystem and name */ 1396e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng sys = tp; 1397e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng name = strchr(tp, ':'); 1398e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (name == NULL) { 1399e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Error parsing %s tracepoint: subsystem delimiter not found\n", 1400e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm_events_tp[j]); 1401e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(tp); 1402e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1403e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1404e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng *name = '\0'; 1405e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng name++; 1406e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1407e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (perf_evlist__add_newtp(evlist, sys, name, NULL)) { 1408e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to add %s tracepoint to the list\n", kvm_events_tp[j]); 1409e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(tp); 1410e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1411e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1412e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1413e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng free(tp); 1414e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1415e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1416e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = 0; 1417e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1418e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 1419e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err) { 1420e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__delete(evlist); 1421e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng evlist = NULL; 1422e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1423e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1424e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return evlist; 1425e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1426e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1427e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int kvm_events_live(struct perf_kvm_stat *kvm, 1428e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int argc, const char **argv) 1429e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1430e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng char errbuf[BUFSIZ]; 1431e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int err; 1432e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1433e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const struct option live_options[] = { 1434e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid", 1435e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "record events on existing process id"), 1436e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_UINTEGER('m', "mmap-pages", &kvm->opts.mmap_pages, 1437e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "number of mmap data pages"), 1438e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_INCR('v', "verbose", &verbose, 1439e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "be more verbose (show counter open errors, etc)"), 1440e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_BOOLEAN('a', "all-cpus", &kvm->opts.target.system_wide, 1441e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "system-wide collection from all CPUs"), 1442e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_UINTEGER('d', "display", &kvm->display_time, 1443e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "time in seconds between display updates"), 1444e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING(0, "event", &kvm->report_event, "report event", 1445e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "event for reporting: vmexit, mmio, ioport"), 1446e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_INTEGER(0, "vcpu", &kvm->trace_vcpu, 1447e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "vcpu id to report"), 1448e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING('k', "key", &kvm->sort_key, "sort-key", 1449e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "key for sorting: sample(sort by samples number)" 1450e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng " time (sort by avg time)"), 1451e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_U64(0, "duration", &kvm->duration, 1452e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "show events other than HALT that take longer than duration usecs"), 1453e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_END() 1454e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1455e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char * const live_usage[] = { 1456e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "perf kvm stat live [<options>]", 1457e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng NULL 1458e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1459e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1460e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1461e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* event handling */ 1462e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->tool.sample = process_sample_event; 1463e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->tool.comm = perf_event__process_comm; 1464e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->tool.exit = perf_event__process_exit; 1465e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->tool.fork = perf_event__process_fork; 1466e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->tool.lost = process_lost_event; 1467e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->tool.ordered_samples = true; 1468e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_tool__fill_defaults(&kvm->tool); 1469e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1470e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* set defaults */ 1471e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->display_time = 1; 1472e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->opts.user_interval = 1; 1473e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->opts.mmap_pages = 512; 1474e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->opts.target.uses_mmap = false; 1475e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->opts.target.uid_str = NULL; 1476e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->opts.target.uid = UINT_MAX; 1477e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1478e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng symbol__init(); 1479e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng disable_buildid_cache(); 1480e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1481e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng use_browser = 0; 1482e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng setup_browser(false); 1483e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1484e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (argc) { 1485e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argc = parse_options(argc, argv, live_options, 1486e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng live_usage, 0); 1487e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (argc) 1488e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage_with_options(live_usage, live_options); 1489e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1490e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1491e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->duration *= NSEC_PER_USEC; /* convert usec to nsec */ 1492e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1493e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 1494e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * target related setups 1495e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 1496e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = perf_target__validate(&kvm->opts.target); 1497e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err) { 1498e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_target__strerror(&kvm->opts.target, err, errbuf, BUFSIZ); 1499e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng ui__warning("%s", errbuf); 1500e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1501e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1502e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (perf_target__none(&kvm->opts.target)) 1503e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->opts.target.system_wide = true; 1504e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1505e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1506e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 1507e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * generate the event list 1508e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 1509e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->evlist = kvm_live_event_list(); 1510e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->evlist == NULL) { 1511e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = -1; 1512e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1513e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1514e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1515e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng symbol_conf.nr_events = kvm->evlist->nr_entries; 1516e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1517e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (perf_evlist__create_maps(kvm->evlist, &kvm->opts.target) < 0) 1518e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage_with_options(live_usage, live_options); 1519e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1520e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng /* 1521e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng * perf session 1522e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng */ 1523e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->session = perf_session__new(NULL, O_WRONLY, false, false, &kvm->tool); 1524e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->session == NULL) { 1525e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = -ENOMEM; 1526e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1527e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1528e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->session->evlist = kvm->evlist; 1529e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_session__set_id_hdr_size(kvm->session); 1530e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1531e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1532e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (perf_target__has_task(&kvm->opts.target)) 1533e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__synthesize_thread_map(&kvm->tool, 1534e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->evlist->threads, 1535e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__process, 1536e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng &kvm->session->machines.host); 1537e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 1538e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_event__synthesize_threads(&kvm->tool, perf_event__process, 1539e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng &kvm->session->machines.host); 1540e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1541e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1542e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = kvm_live_open_events(kvm); 1543e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (err) 1544e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto out; 1545e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1546e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng err = kvm_events_live_report(kvm); 1547e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1548e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengout: 1549e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng exit_browser(0); 1550e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1551e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->session) 1552e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_session__delete(kvm->session); 1553e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng kvm->session = NULL; 1554e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (kvm->evlist) { 1555e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__delete_maps(kvm->evlist); 1556e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_evlist__delete(kvm->evlist); 1557e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1558e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1559e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return err; 1560e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1561e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1562e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic void print_kvm_stat_usage(void) 1563e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1564e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("Usage: perf kvm stat <command>\n\n"); 1565e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1566e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("# Available commands:\n"); 1567e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("\trecord: record kvm events\n"); 1568e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("\treport: report statistical data of kvm events\n"); 1569e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("\tlive: live reporting of statistical data of kvm events\n"); 1570e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1571e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng printf("\nOtherwise, it is the alias of 'perf stat':\n"); 1572e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1573e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1574e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int kvm_cmd_stat(const char *file_name, int argc, const char **argv) 1575e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1576e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng struct perf_kvm_stat kvm = { 1577e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .file_name = file_name, 1578e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1579e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .trace_vcpu = -1, 1580e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .report_event = "vmexit", 1581e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .sort_key = "sample", 1582e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1583e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .exit_reasons = svm_exit_reasons, 1584e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .exit_reasons_size = ARRAY_SIZE(svm_exit_reasons), 1585e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng .exit_reasons_isa = "SVM", 1586e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1587e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1588e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (argc == 1) { 1589e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng print_kvm_stat_usage(); 1590e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng goto perf_stat; 1591e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1592e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1593e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strncmp(argv[1], "rec", 3)) 1594e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return kvm_events_record(&kvm, argc - 1, argv + 1); 1595e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1596e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strncmp(argv[1], "rep", 3)) 1597e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return kvm_events_report(&kvm, argc - 1 , argv + 1); 1598e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1599e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strncmp(argv[1], "live", 4)) 1600e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return kvm_events_live(&kvm, argc - 1 , argv + 1); 1601e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1602e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengperf_stat: 1603e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return cmd_stat(argc, argv, NULL); 1604e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1605e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#endif 1606e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1607e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int __cmd_record(const char *file_name, int argc, const char **argv) 1608e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1609e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rec_argc, i = 0, j; 1610e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char **rec_argv; 1611e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1612e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argc = argc + 2; 1613e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv = calloc(rec_argc + 1, sizeof(char *)); 1614e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup("record"); 1615e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup("-o"); 1616e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup(file_name); 1617e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 1; j < argc; j++, i++) 1618e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i] = argv[j]; 1619e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1620e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng BUG_ON(i != rec_argc); 1621e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1622e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return cmd_record(i, rec_argv, NULL); 1623e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1624e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1625e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int __cmd_report(const char *file_name, int argc, const char **argv) 1626e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1627e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rec_argc, i = 0, j; 1628e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char **rec_argv; 1629e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1630e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argc = argc + 2; 1631e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv = calloc(rec_argc + 1, sizeof(char *)); 1632e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup("report"); 1633e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup("-i"); 1634e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup(file_name); 1635e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 1; j < argc; j++, i++) 1636e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i] = argv[j]; 1637e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1638e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng BUG_ON(i != rec_argc); 1639e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1640e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return cmd_report(i, rec_argv, NULL); 1641e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1642e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1643e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengstatic int 1644e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng__cmd_buildid_list(const char *file_name, int argc, const char **argv) 1645e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1646e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng int rec_argc, i = 0, j; 1647e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char **rec_argv; 1648e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1649e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argc = argc + 2; 1650e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv = calloc(rec_argc + 1, sizeof(char *)); 1651e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup("buildid-list"); 1652e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup("-i"); 1653e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i++] = strdup(file_name); 1654e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng for (j = 1; j < argc; j++, i++) 1655e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng rec_argv[i] = argv[j]; 1656e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1657e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng BUG_ON(i != rec_argc); 1658e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1659e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return cmd_buildid_list(i, rec_argv, NULL); 1660e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1661e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1662e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Chengint cmd_kvm(int argc, const char **argv, const char *prefix __maybe_unused) 1663e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng{ 1664e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char *file_name = NULL; 1665e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const struct option kvm_options[] = { 1666e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING('i', "input", &file_name, "file", 1667e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "Input file name"), 1668e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING('o', "output", &file_name, "file", 1669e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "Output file name"), 1670e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_BOOLEAN(0, "guest", &perf_guest, 1671e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "Collect guest os data"), 1672e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_BOOLEAN(0, "host", &perf_host, 1673e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "Collect host os data"), 1674e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING(0, "guestmount", &symbol_conf.guestmount, "directory", 1675e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "guest mount directory under which every guest os" 1676e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng " instance has a subdir"), 1677e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING(0, "guestvmlinux", &symbol_conf.default_guest_vmlinux_name, 1678e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "file", "file saving guest os vmlinux"), 1679e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING(0, "guestkallsyms", &symbol_conf.default_guest_kallsyms, 1680e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "file", "file saving guest os /proc/kallsyms"), 1681e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_STRING(0, "guestmodules", &symbol_conf.default_guest_modules, 1682e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "file", "file saving guest os /proc/modules"), 1683e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng OPT_END() 1684e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1685e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1686e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1687e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng const char * const kvm_usage[] = { 1688e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng "perf kvm [<options>] {top|record|report|diff|buildid-list|stat}", 1689e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng NULL 1690e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng }; 1691e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1692e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_host = 0; 1693e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_guest = 1; 1694e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1695e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng argc = parse_options(argc, argv, kvm_options, kvm_usage, 1696e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng PARSE_OPT_STOP_AT_NON_OPTION); 1697e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!argc) 1698e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage_with_options(kvm_usage, kvm_options); 1699e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1700e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!perf_host) 1701e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng perf_guest = 1; 1702e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1703e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!file_name) { 1704e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (perf_host && !perf_guest) 1705e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng file_name = strdup("perf.data.host"); 1706e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!perf_host && perf_guest) 1707e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng file_name = strdup("perf.data.guest"); 1708e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 1709e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng file_name = strdup("perf.data.kvm"); 1710e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1711e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!file_name) { 1712e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng pr_err("Failed to allocate memory for filename\n"); 1713e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return -ENOMEM; 1714e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1715e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng } 1716e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1717e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng if (!strncmp(argv[0], "rec", 3)) 1718e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return __cmd_record(file_name, argc, argv); 1719e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!strncmp(argv[0], "rep", 3)) 1720e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return __cmd_report(file_name, argc, argv); 1721e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!strncmp(argv[0], "diff", 4)) 1722e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return cmd_diff(argc, argv, NULL); 1723e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!strncmp(argv[0], "top", 3)) 1724e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return cmd_top(argc, argv, NULL); 1725e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!strncmp(argv[0], "buildid-list", 12)) 1726e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return __cmd_buildid_list(file_name, argc, argv); 1727e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#if defined(__i386__) || defined(__x86_64__) 1728e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else if (!strncmp(argv[0], "stat", 4)) 1729e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return kvm_cmd_stat(file_name, argc, argv); 1730e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng#endif 1731e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng else 1732e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng usage_with_options(kvm_usage, kvm_options); 1733e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng 1734e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng return 0; 1735e6e8a0bd7cffcc9ae2e0e75546fb12a19213d4aeBen Cheng} 1736