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 # ioport.c
  29 cpu_in(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
  30 cpu_out(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
  31
  32 # balloon.c
  33 # Since requests are raised via monitor, not many tracepoints are needed.
  34 balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"
  35
  36 # vl.c
  37 vm_state_notify(int running, int reason) "running %d reason %d"
  38 load_file(const char *name, const char *path) "name %s location %s"
  39 runstate_set(int new_state) "new state %d"
  40 system_wakeup_request(int reason) "reason=%d"
  41 qemu_system_shutdown_request(int reason) "reason=%d"
  42 qemu_system_powerdown_request(void) ""
  43
  44 # monitor.c
  45 monitor_protocol_event_handler(uint32_t event, void *qdict) "event=%d data=%p"
  46 monitor_protocol_event_emit(uint32_t event, void *data) "event=%d data=%p"
  47 monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event=%d data=%p rate=%" PRId64
  48 handle_hmp_command(void *mon, const char *cmdline) "mon %p cmdline: %s"
  49 handle_qmp_command(void *mon, const char *req) "mon %p req: %s"
  50
  51 # dma-helpers.c
  52 dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
  53 dma_aio_cancel(void *dbs) "dbs=%p"
  54 dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
  55 dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
  56 dma_map_wait(void *dbs) "dbs=%p"
  57
  58 # kvm-all.c
  59 kvm_ioctl(int type, void *arg) "type 0x%x, arg %p"
  60 kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p"
  61 kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type 0x%x, arg %p"
  62 kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d"
  63 kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p"
  64 kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s"
  65 kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s"
  66 kvm_irqchip_commit_routes(void) ""
  67 kvm_irqchip_add_msi_route(char *name, int vector, int virq) "dev %s vector %d virq %d"
  68 kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"
  69 kvm_irqchip_release_virq(int virq) "virq %d"
  70
  71 # TCG related tracing (mostly disabled by default)
  72 # cpu-exec.c
  73 disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
  74 disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
  75 disable exec_tb_exit(void *last_tb, unsigned int flags) "tb:%p flags=%x"
  76
  77 # translate-all.c
  78 translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p"
  79
  80 # memory.c
  81 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"
  82 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"
  83 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"
  84 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"
  85 memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
  86 memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
  87 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"
  88 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"
  89
  90 ### Guest events, keep at bottom
  91
  92
  93 ## vCPU
  94
  95 # Hot-plug a new virtual (guest) CPU
  96 #
  97 # Mode: user, softmmu
  98 # Targets: all
  99 vcpu guest_cpu_enter(void)
 100
 101 # Hot-unplug a virtual (guest) CPU
 102 #
 103 # Mode: user, softmmu
 104 # Targets: all
 105 vcpu guest_cpu_exit(void)
 106
 107 # Reset the state of a virtual (guest) CPU
 108 #
 109 # Mode: user, softmmu
 110 # Targets: all
 111 vcpu guest_cpu_reset(void)
 112
 113 # @vaddr: Access' virtual address.
 114 # @info : Access' information (see below).
 115 #
 116 # Start virtual memory access (before any potential access violation).
 117 #
 118 # Does not include memory accesses performed by devices.
 119 #
 120 # Access information can be parsed as:
 121 #
 122 # struct mem_info {
 123 #     uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
 124 #     bool    sign_extend: 1; /* sign-extended */
 125 #     uint8_t endianness : 1; /* 0: little, 1: big */
 126 #     bool    store      : 1; /* wheter it's a store operation */
 127 # };
 128 #
 129 # Mode: user, softmmu
 130 # Targets: TCG(all)
 131 disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
 132
 133 # @num: System call number.
 134 # @arg*: System call argument value.
 135 #
 136 # Start executing a guest system call in syscall emulation mode.
 137 #
 138 # Mode: user
 139 # Targets: TCG(all)
 140 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
 141
 142 # @num: System call number.
 143 # @ret: System call result value.
 144 #
 145 # Finish executing a guest system call in syscall emulation mode.
 146 #
 147 # Mode: user
 148 # Targets: TCG(all)
 149 disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64