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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 0x%x(%c) value %u"
30 cpu_out(unsigned int addr, char size, unsigned int val) "addr 0x%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 monitor_suspend(void *ptr, int cnt) "mon %p: %d"
51 monitor_qmp_cmd_in_band(const char *id) "%s"
52 monitor_qmp_cmd_out_of_band(const char *id) "%s"
53
54 # dma-helpers.c
55 dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
56 dma_aio_cancel(void *dbs) "dbs=%p"
57 dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
58 dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
59 dma_map_wait(void *dbs) "dbs=%p"
60
61 # exec.c
62 find_ram_offset(uint64_t size, uint64_t offset) "size: 0x%" PRIx64 " @ 0x%" PRIx64
63 find_ram_offset_loop(uint64_t size, uint64_t candidate, uint64_t offset, uint64_t next, uint64_t mingap) "trying size: 0x%" PRIx64 " @ 0x%" PRIx64 ", offset: 0x%" PRIx64" next: 0x%" PRIx64 " mingap: 0x%" PRIx64
64 ram_block_discard_range(const char *rbname, void *hva, size_t length, bool need_madvise, bool need_fallocate, int ret) "%s@%p + 0x%zx: madvise: %d fallocate: %d ret: %d"
65
66 # memory.c
67 memory_region_ops_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
68 memory_region_ops_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
69 memory_region_subpage_read(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
70 memory_region_subpage_write(int cpu_index, void *mr, uint64_t offset, uint64_t value, unsigned size) "cpu %d mr %p offset 0x%"PRIx64" value 0x%"PRIx64" size %u"
71 memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
72 memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
73 memory_region_ram_device_read(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
74 memory_region_ram_device_write(int cpu_index, void *mr, uint64_t addr, uint64_t value, unsigned size) "cpu %d mr %p addr 0x%"PRIx64" value 0x%"PRIx64" size %u"
75 flatview_new(void *view, void *root) "%p (root %p)"
76 flatview_destroy(void *view, void *root) "%p (root %p)"
77 flatview_destroy_rcu(void *view, void *root) "%p (root %p)"
78
79 # gdbstub.c
80 gdbstub_op_start(const char *device) "Starting gdbstub using device %s"
81 gdbstub_op_exiting(uint8_t code) "notifying exit with code=0x%02x"
82 gdbstub_op_continue(void) "Continuing all CPUs"
83 gdbstub_op_continue_cpu(int cpu_index) "Continuing CPU %d"
84 gdbstub_op_stepping(int cpu_index) "Stepping CPU %d"
85 gdbstub_op_extra_info(const char *info) "Thread extra info: %s"
86 gdbstub_hit_watchpoint(const char *type, int cpu_gdb_index, uint64_t vaddr) "Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 ""
87 gdbstub_hit_internal_error(void) "RUN_STATE_INTERNAL_ERROR"
88 gdbstub_hit_break(void) "RUN_STATE_DEBUG"
89 gdbstub_hit_paused(void) "RUN_STATE_PAUSED"
90 gdbstub_hit_shutdown(void) "RUN_STATE_SHUTDOWN"
91 gdbstub_hit_io_error(void) "RUN_STATE_IO_ERROR"
92 gdbstub_hit_watchdog(void) "RUN_STATE_WATCHDOG"
93 gdbstub_hit_unknown(int state) "Unknown run state=0x%x"
94 gdbstub_io_reply(const char *message) "Sent: %s"
95 gdbstub_io_binaryreply(size_t ofs, const char *line) "0x%04zx: %s"
96 gdbstub_io_command(const char *command) "Received: %s"
97 gdbstub_io_got_ack(void) "Got ACK"
98 gdbstub_io_got_unexpected(uint8_t ch) "Got 0x%02x when expecting ACK/NACK"
99 gdbstub_err_got_nack(void) "Got NACK, retransmitting"
100 gdbstub_err_garbage(uint8_t ch) "received garbage between packets: 0x%02x"
101 gdbstub_err_overrun(void) "command buffer overrun, dropping command"
102 gdbstub_err_invalid_repeat(uint8_t ch) "got invalid RLE count: 0x%02x"
103 gdbstub_err_invalid_rle(void) "got invalid RLE sequence"
104 gdbstub_err_checksum_invalid(uint8_t ch) "got invalid command checksum digit: 0x%02x"
105 gdbstub_err_checksum_incorrect(uint8_t expected, uint8_t got) "got command packet with incorrect checksum, expected=0x%02x, received=0x%02x"
106
107 # job.c
108 job_state_transition(void *job, int ret, const char *legal, const char *s0, const char *s1) "job %p (ret: %d) attempting %s transition (%s-->%s)"
109 job_apply_verb(void *job, const char *state, const char *verb, const char *legal) "job %p in state %s; applying verb %s (%s)"
110
111 ### Guest events, keep at bottom
112
113
114 ## vCPU
115
116 # Hot-plug a new virtual (guest) CPU
117 #
118 # Mode: user, softmmu
119 # Targets: all
120 vcpu guest_cpu_enter(void)
121
122 # Hot-unplug a virtual (guest) CPU
123 #
124 # Mode: user, softmmu
125 # Targets: all
126 vcpu guest_cpu_exit(void)
127
128 # Reset the state of a virtual (guest) CPU
129 #
130 # Mode: user, softmmu
131 # Targets: all
132 vcpu guest_cpu_reset(void)
133
134 # @vaddr: Access' virtual address.
135 # @info : Access' information (see below).
136 #
137 # Start virtual memory access (before any potential access violation).
138 #
139 # Does not include memory accesses performed by devices.
140 #
141 # Access information can be parsed as:
142 #
143 # struct mem_info {
144 # uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
145 # bool sign_extend: 1; /* sign-extended */
146 # uint8_t endianness : 1; /* 0: little, 1: big */
147 # bool store : 1; /* wheter it's a store operation */
148 # };
149 #
150 # Mode: user, softmmu
151 # Targets: TCG(all)
152 vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
153
154 # @num: System call number.
155 # @arg*: System call argument value.
156 #
157 # Start executing a guest system call in syscall emulation mode.
158 #
159 # Mode: user
160 # Targets: TCG(all)
161 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
162
163 # @num: System call number.
164 # @ret: System call result value.
165 #
166 # Finish executing a guest system call in syscall emulation mode.
167 #
168 # Mode: user
169 # Targets: TCG(all)
170 vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64