LXR qemu/trace-events

   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