trace-events - qemu - Git at Google

 # Trace events for debugging and performance instrumentation
 #
 # This file is processed by the tracetool script during the build.
 #
 # To add a new trace event:
 #
 # 1. Choose a name for the trace event.  Declare its arguments and format
 #    string.
 #
 # 2. Call the trace event from code using trace_##name, e.g. multiwrite_cb() ->
 #    trace_multiwrite_cb().  The source file must #include "trace.h".
 #
 # Format of a trace event:
 #
 # [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>"
 #
 # Example: g_malloc(size_t size) "size %zu"
 #
 # The "disable" keyword will build without the trace event.
 #
 # The <name> must be a valid as a C function name.
 #
 # Types should be standard C types.  Use void * for pointers because the trace
 # system may not have the necessary headers included.
 #
 # The <format-string> should be a sprintf()-compatible format string.

 # thread-pool.c
 thread_pool_submit(void *pool, void *req, void *opaque) "pool %p req %p opaque %p"
 thread_pool_complete(void *pool, void *req, void *opaque, int ret) "pool %p req %p opaque %p ret %d"
 thread_pool_cancel(void *req, void *opaque) "req %p opaque %p"

 # ioport.c
 cpu_in(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
 cpu_out(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"

 # balloon.c
 # Since requests are raised via monitor, not many tracepoints are needed.
 balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"

 # vl.c
 vm_state_notify(int running, int reason) "running %d reason %d"
 load_file(const char *name, const char *path) "name %s location %s"
 runstate_set(int new_state) "new state %d"
 system_wakeup_request(int reason) "reason=%d"
 qemu_system_shutdown_request(void) ""
 qemu_system_powerdown_request(void) ""

 # spice-qemu-char.c
 spice_vmc_write(ssize_t out, int len) "spice wrottn %zd of requested %d"
 spice_vmc_read(int bytes, int len) "spice read %d of requested %d"
 spice_vmc_register_interface(void *scd) "spice vmc registered interface %p"
 spice_vmc_unregister_interface(void *scd) "spice vmc unregistered interface %p"
 spice_vmc_event(int event) "spice vmc event %d"

 # xen-hvm.c
 xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx, size %#lx"
 xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "%#"PRIx64" size %#lx, log_dirty %i"
 xen_default_ioreq_server(void) ""
 xen_ioreq_server_create(uint32_t id) "id: %u"
 xen_ioreq_server_destroy(uint32_t id) "id: %u"
 xen_ioreq_server_state(uint32_t id, bool enable) "id: %u: enable: %i"
 xen_map_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
 xen_unmap_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
 xen_map_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
 xen_unmap_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
 xen_map_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x"
 xen_unmap_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x"
 handle_ioreq(void *req, uint32_t type, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p type=%d dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
 handle_ioreq_read(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p read type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
 handle_ioreq_write(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p write type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
 cpu_ioreq_pio(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p pio dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
 cpu_ioreq_pio_read_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio read reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
 cpu_ioreq_pio_write_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio write reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
 cpu_ioreq_move(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p copy dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"

 # xen-mapcache.c
 xen_map_cache(uint64_t phys_addr) "want %#"PRIx64
 xen_remap_bucket(uint64_t index) "index %#"PRIx64
 xen_map_cache_return(void* ptr) "%p"

 # monitor.c
 handle_qmp_command(void *mon, const char *cmd_name) "mon %p cmd_name \"%s\""
 monitor_protocol_event_handler(uint32_t event, void *qdict) "event=%d data=%p"
 monitor_protocol_event_emit(uint32_t event, void *data) "event=%d data=%p"
 monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event=%d data=%p rate=%" PRId64
 monitor_protocol_event_throttle(uint32_t event, uint64_t rate) "event=%d rate=%" PRId64

 # dma-helpers.c
 dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
 dma_aio_cancel(void *dbs) "dbs=%p"
 dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
 dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
 dma_map_wait(void *dbs) "dbs=%p"

 # kvm-all.c
 kvm_ioctl(int type, void *arg) "type 0x%x, arg %p"
 kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p"
 kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type 0x%x, arg %p"
 kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d"
 kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p"
 kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s"
 kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s"
 kvm_irqchip_commit_routes(void) ""
 kvm_irqchip_add_msi_route(int virq) "Adding MSI route virq=%d"
 kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"

 # TCG related tracing (mostly disabled by default)
 # cpu-exec.c
 disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
 disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
 disable exec_tb_exit(void *last_tb, unsigned int flags) "tb:%p flags=%x"

 # translate-all.c
 translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p"

 # memory.c
 memory_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"
 memory_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"
 memory_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"
 memory_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"
 memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
 memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"

 ### Guest events, keep at bottom


 ## vCPU

 # Hot-plug a new virtual (guest) CPU
 #
 # Mode: user, softmmu
 # Targets: all
 vcpu guest_cpu_enter(void)

 # Reset the state of a virtual (guest) CPU
 #
 # Mode: user, softmmu
 # Targets: all
 vcpu guest_cpu_reset(void)

 # @vaddr: Access' virtual address.
 # @info : Access' information (see below).
 #
 # Start virtual memory access (before any potential access violation).
 #
 # Does not include memory accesses performed by devices.
 #
 # Access information can be parsed as:
 #
 # struct mem_info {
 #     uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
 #     bool    sign_extend: 1; /* sign-extended */
 #     uint8_t endianness : 1; /* 0: little, 1: big */
 #     bool    store      : 1; /* wheter it's a store operation */
 # };
 #
 # Mode: user, softmmu
 # Targets: TCG(all)
 disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"

 # @num: System call number.
 # @arg*: System call argument value.
 #
 # Start executing a guest system call in syscall emulation mode.
 #
 # Mode: user
 # Targets: TCG(all)
 disable 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

 # @num: System call number.
 # @ret: System call result value.
 #
 # Finish executing a guest system call in syscall emulation mode.
 #
 # Mode: user
 # Targets: TCG(all)
 disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64
	# Trace events for debugging and performance instrumentation
	#
	# This file is processed by the tracetool script during the build.
	#
	# To add a new trace event:
	#
	# 1. Choose a name for the trace event. Declare its arguments and format
	# string.
	#
	# 2. Call the trace event from code using trace_##name, e.g. multiwrite_cb() ->
	# trace_multiwrite_cb(). The source file must #include "trace.h".
	#
	# Format of a trace event:
	#
	# [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>"
	#
	# Example: g_malloc(size_t size) "size %zu"
	#
	# The "disable" keyword will build without the trace event.
	#
	# The <name> must be a valid as a C function name.
	#
	# Types should be standard C types. Use void * for pointers because the trace
	# system may not have the necessary headers included.
	#
	# The <format-string> should be a sprintf()-compatible format string.

	# thread-pool.c
	thread_pool_submit(void pool, void req, void *opaque) "pool %p req %p opaque %p"
	thread_pool_complete(void pool, void req, void *opaque, int ret) "pool %p req %p opaque %p ret %d"
	thread_pool_cancel(void req, void opaque) "req %p opaque %p"

	# ioport.c
	cpu_in(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
	cpu_out(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"

	# balloon.c
	# Since requests are raised via monitor, not many tracepoints are needed.
	balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"

	# vl.c
	vm_state_notify(int running, int reason) "running %d reason %d"
	load_file(const char name, const char path) "name %s location %s"
	runstate_set(int new_state) "new state %d"
	system_wakeup_request(int reason) "reason=%d"
	qemu_system_shutdown_request(void) ""
	qemu_system_powerdown_request(void) ""

	# spice-qemu-char.c
	spice_vmc_write(ssize_t out, int len) "spice wrottn %zd of requested %d"
	spice_vmc_read(int bytes, int len) "spice read %d of requested %d"
	spice_vmc_register_interface(void *scd) "spice vmc registered interface %p"
	spice_vmc_unregister_interface(void *scd) "spice vmc unregistered interface %p"
	spice_vmc_event(int event) "spice vmc event %d"

	# xen-hvm.c
	xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx, size %#lx"
	xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "%#"PRIx64" size %#lx, log_dirty %i"
	xen_default_ioreq_server(void) ""
	xen_ioreq_server_create(uint32_t id) "id: %u"
	xen_ioreq_server_destroy(uint32_t id) "id: %u"
	xen_ioreq_server_state(uint32_t id, bool enable) "id: %u: enable: %i"
	xen_map_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
	xen_unmap_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
	xen_map_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
	xen_unmap_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
	xen_map_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x"
	xen_unmap_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x"
	handle_ioreq(void *req, uint32_t type, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p type=%d dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
	handle_ioreq_read(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p read type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
	handle_ioreq_write(void *req, uint32_t type, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p write type=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
	cpu_ioreq_pio(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p pio dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"
	cpu_ioreq_pio_read_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio read reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
	cpu_ioreq_pio_write_reg(void *req, uint64_t data, uint64_t addr, uint32_t size) "I/O=%p pio write reg data=%#"PRIx64" port=%#"PRIx64" size=%d"
	cpu_ioreq_move(void *req, uint32_t dir, uint32_t df, uint32_t data_is_ptr, uint64_t addr, uint64_t data, uint32_t count, uint32_t size) "I/O=%p copy dir=%d df=%d ptr=%d port=%#"PRIx64" data=%#"PRIx64" count=%d size=%d"

	# xen-mapcache.c
	xen_map_cache(uint64_t phys_addr) "want %#"PRIx64
	xen_remap_bucket(uint64_t index) "index %#"PRIx64
	xen_map_cache_return(void* ptr) "%p"

	# monitor.c
	handle_qmp_command(void mon, const char cmd_name) "mon %p cmd_name \"%s\""
	monitor_protocol_event_handler(uint32_t event, void *qdict) "event=%d data=%p"
	monitor_protocol_event_emit(uint32_t event, void *data) "event=%d data=%p"
	monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event=%d data=%p rate=%" PRId64
	monitor_protocol_event_throttle(uint32_t event, uint64_t rate) "event=%d rate=%" PRId64

	# dma-helpers.c
	dma_blk_io(void dbs, void bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
	dma_aio_cancel(void *dbs) "dbs=%p"
	dma_complete(void dbs, int ret, void cb) "dbs=%p ret=%d cb=%p"
	dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
	dma_map_wait(void *dbs) "dbs=%p"

	# kvm-all.c
	kvm_ioctl(int type, void *arg) "type 0x%x, arg %p"
	kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p"
	kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type 0x%x, arg %p"
	kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d"
	kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p"
	kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s"
	kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s"
	kvm_irqchip_commit_routes(void) ""
	kvm_irqchip_add_msi_route(int virq) "Adding MSI route virq=%d"
	kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"

	# TCG related tracing (mostly disabled by default)
	# cpu-exec.c
	disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
	disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
	disable exec_tb_exit(void *last_tb, unsigned int flags) "tb:%p flags=%x"

	# translate-all.c
	translate_block(void tb, uintptr_t pc, uint8_t tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p"

	# memory.c
	memory_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"
	memory_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"
	memory_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"
	memory_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"
	memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
	memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"

	### Guest events, keep at bottom


	## vCPU

	# Hot-plug a new virtual (guest) CPU
	#
	# Mode: user, softmmu
	# Targets: all
	vcpu guest_cpu_enter(void)

	# Reset the state of a virtual (guest) CPU
	#
	# Mode: user, softmmu
	# Targets: all
	vcpu guest_cpu_reset(void)

	# @vaddr: Access' virtual address.
	# @info : Access' information (see below).
	#
	# Start virtual memory access (before any potential access violation).
	#
	# Does not include memory accesses performed by devices.
	#
	# Access information can be parsed as:
	#
	# struct mem_info {
	# uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
	# bool sign_extend: 1; /* sign-extended */
	# uint8_t endianness : 1; /* 0: little, 1: big */
	# bool store : 1; /* wheter it's a store operation */
	# };
	#
	# Mode: user, softmmu
	# Targets: TCG(all)
	disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"

	# @num: System call number.
	# @arg*: System call argument value.
	#
	# Start executing a guest system call in syscall emulation mode.
	#
	# Mode: user
	# Targets: TCG(all)
	disable 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

	# @num: System call number.
	# @ret: System call result value.
	#
	# Finish executing a guest system call in syscall emulation mode.
	#
	# Mode: user
	# Targets: TCG(all)
	disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64