1 # Trace events for debugging and performance instrumentation
3 # This file is processed by the tracetool script during the build.
5 # To add a new trace event:
7 # 1. Choose a name for the trace event. Declare its arguments and format
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".
13 # Format of a trace event:
15 # [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>"
17 # Example: g_malloc(size_t size) "size %zu"
19 # The "disable" keyword will build without the trace event.
21 # The <name> must be a valid as a C function name.
23 # Types should be standard C types. Use void * for pointers because the trace
24 # system may not have the necessary headers included.
26 # The <format-string> should be a sprintf()-compatible format string.
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"
33 # Since requests are raised via monitor, not many tracepoints are needed.
34 balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"
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) ""
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"
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"
59 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"
60 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"
61 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"
62 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"
63 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"
64 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"
65 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"
66 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"
67 flatview_new(FlatView *view, MemoryRegion *root) "%p (root %p)"
68 flatview_destroy(FlatView *view, MemoryRegion *root) "%p (root %p)"
69 flatview_destroy_rcu(FlatView *view, MemoryRegion *root) "%p (root %p)"
71 ### Guest events, keep at bottom
76 # Hot-plug a new virtual (guest) CPU
80 vcpu guest_cpu_enter(void)
82 # Hot-unplug a virtual (guest) CPU
86 vcpu guest_cpu_exit(void)
88 # Reset the state of a virtual (guest) CPU
92 vcpu guest_cpu_reset(void)
94 # @vaddr: Access' virtual address.
95 # @info : Access' information (see below).
97 # Start virtual memory access (before any potential access violation).
99 # Does not include memory accesses performed by devices.
101 # Access information can be parsed as:
104 # uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
105 # bool sign_extend: 1; /* sign-extended */
106 # uint8_t endianness : 1; /* 0: little, 1: big */
107 # bool store : 1; /* wheter it's a store operation */
110 # Mode: user, softmmu
112 vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
114 # @num: System call number.
115 # @arg*: System call argument value.
117 # Start executing a guest system call in syscall emulation mode.
121 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
123 # @num: System call number.
124 # @ret: System call result value.
126 # Finish executing a guest system call in syscall emulation mode.
130 vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64