trace-events

   1 # Trace events for debugging and performance instrumentation
   2 #
   3 # This file is processed by the tracetool script during the build.
   4 #
   5 # To add a new trace event:
   6 #
   7 # 1. Choose a name for the trace event.  Declare its arguments and format
   8 #    string.
   9 #
  10 # 2. Call the trace event from code using trace_##name, e.g. multiwrite_cb() ->
  11 #    trace_multiwrite_cb().  The source file must #include "trace.h".
  12 #
  13 # Format of a trace event:
  14 #
  15 # [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>"
  16 #
  17 # Example: g_malloc(size_t size) "size %zu"
  18 #
  19 # The "disable" keyword will build without the trace event.
  20 #
  21 # The <name> must be a valid as a C function name.
  22 #
  23 # Types should be standard C types.  Use void * for pointers because the trace
  24 # system may not have the necessary headers included.
  25 #
  26 # The <format-string> should be a sprintf()-compatible format string.
  27
  28 # aio-posix.c
  29 run_poll_handlers_begin(void *ctx, int64_t max_ns) "ctx %p max_ns %"PRId64
  30 run_poll_handlers_end(void *ctx, bool progress) "ctx %p progress %d"
  31 poll_shrink(void *ctx, int64_t old, int64_t new) "ctx %p old %"PRId64" new %"PRId64
  32 poll_grow(void *ctx, int64_t old, int64_t new) "ctx %p old %"PRId64" new %"PRId64
  33
  34 # thread-pool.c
  35 thread_pool_submit(void *pool, void *req, void *opaque) "pool %p req %p opaque %p"
  36 thread_pool_complete(void *pool, void *req, void *opaque, int ret) "pool %p req %p opaque %p ret %d"
  37 thread_pool_cancel(void *req, void *opaque) "req %p opaque %p"
  38
  39 # ioport.c
  40 cpu_in(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
  41 cpu_out(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
  42
  43 # balloon.c
  44 # Since requests are raised via monitor, not many tracepoints are needed.
  45 balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"
  46
  47 # vl.c
  48 vm_state_notify(int running, int reason) "running %d reason %d"
  49 load_file(const char *name, const char *path) "name %s location %s"
  50 runstate_set(int new_state) "new state %d"
  51 system_wakeup_request(int reason) "reason=%d"
  52 qemu_system_shutdown_request(void) ""
  53 qemu_system_powerdown_request(void) ""
  54
  55 # spice-qemu-char.c
  56 spice_vmc_write(ssize_t out, int len) "spice wrote %zd of requested %d"
  57 spice_vmc_read(int bytes, int len) "spice read %d of requested %d"
  58 spice_vmc_register_interface(void *scd) "spice vmc registered interface %p"
  59 spice_vmc_unregister_interface(void *scd) "spice vmc unregistered interface %p"
  60 spice_vmc_event(int event) "spice vmc event %d"
  61
  62 # xen-hvm.c
  63 xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx, size %#lx"
  64 xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "%#"PRIx64" size %#lx, log_dirty %i"
  65 handle_ioreq(void *req, uint32_t type, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p type=%d dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
  66 handle_ioreq_read(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p read type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
  67 handle_ioreq_write(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p write type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
  68 cpu_ioreq_pio(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p pio dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
  69 cpu_ioreq_pio_read_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio read reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
  70 cpu_ioreq_pio_write_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio write reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
  71 cpu_ioreq_move(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p copy dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
  72
  73 # xen-mapcache.c
  74 xen_map_cache(uint64_t phys_addr) "want %#"PRIx64
  75 xen_remap_bucket(uint64_t index) "index %#"PRIx64
  76 xen_map_cache_return(void* ptr) "%p"
  77
  78 # monitor.c
  79 handle_qmp_command(void *mon, const char *cmd_name) "mon %p cmd_name \"%s\""
  80 monitor_protocol_event_handler(uint32_t event, void *qdict) "event=%d data=%p"
  81 monitor_protocol_event_emit(uint32_t event, void *data) "event=%d data=%p"
  82 monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event=%d data=%p rate=%" PRId64
  83
  84 # dma-helpers.c
  85 dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
  86 dma_aio_cancel(void *dbs) "dbs=%p"
  87 dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
  88 dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
  89 dma_map_wait(void *dbs) "dbs=%p"
  90
  91 # kvm-all.c
  92 kvm_ioctl(int type, void *arg) "type 0x%x, arg %p"
  93 kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p"
  94 kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type 0x%x, arg %p"
  95 kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d"
  96 kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p"
  97 kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s"
  98 kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s"
  99 kvm_irqchip_commit_routes(void) ""
 100 kvm_irqchip_add_msi_route(int virq) "Adding MSI route virq=%d"
 101 kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"
 102
 103 # TCG related tracing (mostly disabled by default)
 104 # cpu-exec.c
 105 disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
 106 disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
 107 disable exec_tb_exit(void *last_tb, unsigned int flags) "tb:%p flags=%x"
 108
 109 # translate-all.c
 110 translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p"
 111
 112 # memory.c
 113 memory_region_ops_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr %#"PRIx64" value %#"PRIx64" size %u"
 114 memory_region_ops_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr %#"PRIx64" value %#"PRIx64" size %u"
 115 memory_region_subpage_read(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset %#"PRIx64" value %#"PRIx64" size %u"
 116 memory_region_subpage_write(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset %#"PRIx64" value %#"PRIx64" size %u"
 117 memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
 118 memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
 119 memory_region_ram_device_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr %#"PRIx64" value %#"PRIx64" size %u"
 120 memory_region_ram_device_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr %#"PRIx64" value %#"PRIx64" size %u"
 121
 122 ### Guest events, keep at bottom
 123
 124
 125 ## vCPU
 126
 127 # Hot-plug a new virtual (guest) CPU
 128 #
 129 # Mode: user, softmmu
 130 # Targets: all
 131 vcpu guest_cpu_enter(void)
 132
 133 # Hot-unplug a virtual (guest) CPU
 134 #
 135 # Mode: user, softmmu
 136 # Targets: all
 137 vcpu guest_cpu_exit(void)
 138
 139 # Reset the state of a virtual (guest) CPU
 140 #
 141 # Mode: user, softmmu
 142 # Targets: all
 143 vcpu guest_cpu_reset(void)
 144
 145 # @vaddr: Access' virtual address.
 146 # @info : Access' information (see below).
 147 #
 148 # Start virtual memory access (before any potential access violation).
 149 #
 150 # Does not include memory accesses performed by devices.
 151 #
 152 # Access information can be parsed as:
 153 #
 154 # struct mem_info {
 155 #     uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
 156 #     bool    sign_extend: 1; /* sign-extended */
 157 #     uint8_t endianness : 1; /* 0: little, 1: big */
 158 #     bool    store      : 1; /* wheter it's a store operation */
 159 # };
 160 #
 161 # Mode: user, softmmu
 162 # Targets: TCG(all)
 163 disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
 164
 165 # @num: System call number.
 166 # @arg*: System call argument value.
 167 #
 168 # Start executing a guest system call in syscall emulation mode.
 169 #
 170 # Mode: user
 171 # Targets: TCG(all)
 172 disable vcpu guest_user_syscall(uint64_t num, uint64_t arg1, uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5, uint64_t arg6, uint64_t arg7, uint64_t arg8) "num=0x%016"PRIx64" arg1=0x%016"PRIx64" arg2=0x%016"PRIx64" arg3=0x%016"PRIx64" arg4=0x%016"PRIx64" arg5=0x%016"PRIx64" arg6=0x%016"PRIx64" arg7=0x%016"PRIx64" arg8=0x%016"PRIx64
 173
 174 # @num: System call number.
 175 # @ret: System call result value.
 176 #
 177 # Finish executing a guest system call in syscall emulation mode.
 178 #
 179 # Mode: user
 180 # Targets: TCG(all)
 181 disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64