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 29cpu_in(unsigned int addr, char size, unsigned int val) "addr 0x%x(%c) value %u" 30cpu_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. 34balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu" 35 36# vl.c 37vm_state_notify(int running, int reason) "running %d reason %d" 38load_file(const char *name, const char *path) "name %s location %s" 39runstate_set(int new_state) "new state %d" 40system_wakeup_request(int reason) "reason=%d" 41qemu_system_shutdown_request(int reason) "reason=%d" 42qemu_system_powerdown_request(void) "" 43 44# monitor.c 45monitor_protocol_event_handler(uint32_t event, void *qdict) "event=%d data=%p" 46monitor_protocol_event_emit(uint32_t event, void *data) "event=%d data=%p" 47monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event=%d data=%p rate=%" PRId64 48handle_hmp_command(void *mon, const char *cmdline) "mon %p cmdline: %s" 49handle_qmp_command(void *mon, const char *req) "mon %p req: %s" 50monitor_suspend(void *ptr, int cnt) "mon %p: %d" 51monitor_qmp_cmd_in_band(const char *id) "%s" 52monitor_qmp_cmd_out_of_band(const char *id) "%s" 53 54# dma-helpers.c 55dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d" 56dma_aio_cancel(void *dbs) "dbs=%p" 57dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p" 58dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d" 59dma_map_wait(void *dbs) "dbs=%p" 60 61# exec.c 62find_ram_offset(uint64_t size, uint64_t offset) "size: 0x%" PRIx64 " @ 0x%" PRIx64 63find_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 64ram_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 67memory_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" 68memory_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" 69memory_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" 70memory_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" 71memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u" 72memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u" 73memory_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" 74memory_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" 75flatview_new(void *view, void *root) "%p (root %p)" 76flatview_destroy(void *view, void *root) "%p (root %p)" 77flatview_destroy_rcu(void *view, void *root) "%p (root %p)" 78 79# gdbstub.c 80gdbstub_op_start(const char *device) "Starting gdbstub using device %s" 81gdbstub_op_exiting(uint8_t code) "notifying exit with code=0x%02x" 82gdbstub_op_continue(void) "Continuing all CPUs" 83gdbstub_op_continue_cpu(int cpu_index) "Continuing CPU %d" 84gdbstub_op_stepping(int cpu_index) "Stepping CPU %d" 85gdbstub_op_extra_info(const char *info) "Thread extra info: %s" 86gdbstub_hit_watchpoint(const char *type, int cpu_gdb_index, uint64_t vaddr) "Watchpoint hit, type=\"%s\" cpu=%d, vaddr=0x%" PRIx64 "" 87gdbstub_hit_internal_error(void) "RUN_STATE_INTERNAL_ERROR" 88gdbstub_hit_break(void) "RUN_STATE_DEBUG" 89gdbstub_hit_paused(void) "RUN_STATE_PAUSED" 90gdbstub_hit_shutdown(void) "RUN_STATE_SHUTDOWN" 91gdbstub_hit_io_error(void) "RUN_STATE_IO_ERROR" 92gdbstub_hit_watchdog(void) "RUN_STATE_WATCHDOG" 93gdbstub_hit_unknown(int state) "Unknown run state=0x%x" 94gdbstub_io_reply(const char *message) "Sent: %s" 95gdbstub_io_binaryreply(size_t ofs, const char *line) "0x%04zx: %s" 96gdbstub_io_command(const char *command) "Received: %s" 97gdbstub_io_got_ack(void) "Got ACK" 98gdbstub_io_got_unexpected(uint8_t ch) "Got 0x%02x when expecting ACK/NACK" 99gdbstub_err_got_nack(void) "Got NACK, retransmitting" 100gdbstub_err_garbage(uint8_t ch) "received garbage between packets: 0x%02x" 101gdbstub_err_overrun(void) "command buffer overrun, dropping command" 102gdbstub_err_invalid_repeat(uint8_t ch) "got invalid RLE count: 0x%02x" 103gdbstub_err_invalid_rle(void) "got invalid RLE sequence" 104gdbstub_err_checksum_invalid(uint8_t ch) "got invalid command checksum digit: 0x%02x" 105gdbstub_err_checksum_incorrect(uint8_t expected, uint8_t got) "got command packet with incorrect checksum, expected=0x%02x, received=0x%02x" 106 107### Guest events, keep at bottom 108 109 110## vCPU 111 112# Hot-plug a new virtual (guest) CPU 113# 114# Mode: user, softmmu 115# Targets: all 116vcpu guest_cpu_enter(void) 117 118# Hot-unplug a virtual (guest) CPU 119# 120# Mode: user, softmmu 121# Targets: all 122vcpu guest_cpu_exit(void) 123 124# Reset the state of a virtual (guest) CPU 125# 126# Mode: user, softmmu 127# Targets: all 128vcpu guest_cpu_reset(void) 129 130# @vaddr: Access' virtual address. 131# @info : Access' information (see below). 132# 133# Start virtual memory access (before any potential access violation). 134# 135# Does not include memory accesses performed by devices. 136# 137# Access information can be parsed as: 138# 139# struct mem_info { 140# uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */ 141# bool sign_extend: 1; /* sign-extended */ 142# uint8_t endianness : 1; /* 0: little, 1: big */ 143# bool store : 1; /* wheter it's a store operation */ 144# }; 145# 146# Mode: user, softmmu 147# Targets: TCG(all) 148vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d" 149 150# @num: System call number. 151# @arg*: System call argument value. 152# 153# Start executing a guest system call in syscall emulation mode. 154# 155# Mode: user 156# Targets: TCG(all) 157vcpu 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 158 159# @num: System call number. 160# @ret: System call result value. 161# 162# Finish executing a guest system call in syscall emulation mode. 163# 164# Mode: user 165# Targets: TCG(all) 166vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64 167