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" 50 51# dma-helpers.c 52dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d" 53dma_aio_cancel(void *dbs) "dbs=%p" 54dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p" 55dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d" 56dma_map_wait(void *dbs) "dbs=%p" 57 58# memory.c 59memory_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" 60memory_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" 61memory_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" 62memory_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" 63memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u" 64memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr 0x%"PRIx64" value 0x%"PRIx64" size %u" 65memory_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" 66memory_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" 67flatview_new(FlatView *view, MemoryRegion *root) "%p (root %p)" 68flatview_destroy(FlatView *view, MemoryRegion *root) "%p (root %p)" 69flatview_destroy_rcu(FlatView *view, MemoryRegion *root) "%p (root %p)" 70 71### Guest events, keep at bottom 72 73 74## vCPU 75 76# Hot-plug a new virtual (guest) CPU 77# 78# Mode: user, softmmu 79# Targets: all 80vcpu guest_cpu_enter(void) 81 82# Hot-unplug a virtual (guest) CPU 83# 84# Mode: user, softmmu 85# Targets: all 86vcpu guest_cpu_exit(void) 87 88# Reset the state of a virtual (guest) CPU 89# 90# Mode: user, softmmu 91# Targets: all 92vcpu guest_cpu_reset(void) 93 94# @vaddr: Access' virtual address. 95# @info : Access' information (see below). 96# 97# Start virtual memory access (before any potential access violation). 98# 99# Does not include memory accesses performed by devices. 100# 101# Access information can be parsed as: 102# 103# struct mem_info { 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 */ 108# }; 109# 110# Mode: user, softmmu 111# Targets: TCG(all) 112vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d" 113 114# @num: System call number. 115# @arg*: System call argument value. 116# 117# Start executing a guest system call in syscall emulation mode. 118# 119# Mode: user 120# Targets: TCG(all) 121vcpu 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 122 123# @num: System call number. 124# @ret: System call result value. 125# 126# Finish executing a guest system call in syscall emulation mode. 127# 128# Mode: user 129# Targets: TCG(all) 130vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64 131