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 %#x(%c) value %u" 30cpu_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. 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# kvm-all.c 59kvm_ioctl(int type, void *arg) "type 0x%x, arg %p" 60kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p" 61kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type 0x%x, arg %p" 62kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d" 63kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p" 64kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s" 65kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s" 66kvm_irqchip_commit_routes(void) "" 67kvm_irqchip_add_msi_route(char *name, int vector, int virq) "dev %s vector %d virq %d" 68kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d" 69kvm_irqchip_release_virq(int virq) "virq %d" 70 71# TCG related tracing (mostly disabled by default) 72# translate-all.c 73translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p" 74 75# memory.c 76memory_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" 77memory_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" 78memory_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" 79memory_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" 80memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u" 81memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u" 82memory_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" 83memory_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" 84 85### Guest events, keep at bottom 86 87 88## vCPU 89 90# Hot-plug a new virtual (guest) CPU 91# 92# Mode: user, softmmu 93# Targets: all 94vcpu guest_cpu_enter(void) 95 96# Hot-unplug a virtual (guest) CPU 97# 98# Mode: user, softmmu 99# Targets: all 100vcpu guest_cpu_exit(void) 101 102# Reset the state of a virtual (guest) CPU 103# 104# Mode: user, softmmu 105# Targets: all 106vcpu guest_cpu_reset(void) 107 108# @vaddr: Access' virtual address. 109# @info : Access' information (see below). 110# 111# Start virtual memory access (before any potential access violation). 112# 113# Does not include memory accesses performed by devices. 114# 115# Access information can be parsed as: 116# 117# struct mem_info { 118# uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */ 119# bool sign_extend: 1; /* sign-extended */ 120# uint8_t endianness : 1; /* 0: little, 1: big */ 121# bool store : 1; /* wheter it's a store operation */ 122# }; 123# 124# Mode: user, softmmu 125# Targets: TCG(all) 126disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d" 127 128# @num: System call number. 129# @arg*: System call argument value. 130# 131# Start executing a guest system call in syscall emulation mode. 132# 133# Mode: user 134# Targets: TCG(all) 135disable 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 136 137# @num: System call number. 138# @ret: System call result value. 139# 140# Finish executing a guest system call in syscall emulation mode. 141# 142# Mode: user 143# Targets: TCG(all) 144disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64 145