mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2024-11-24 19:33:39 +08:00
Code Issues Packages Projects Releases Wiki Activity
f9f05dc58c
qemu/trace-events

436 lines
26 KiB
Plaintext
Raw Normal View History

trace: Add trace-events file for declaring trace events This patch introduces the trace-events file where trace events can be declared like so: qemu_malloc(size_t size) "size %zu" qemu_free(void *ptr) "ptr %p" These trace event declarations are processed by a new tool called tracetool to generate code for the trace events. Trace event declarations are independent of the backend tracing system (LTTng User Space Tracing, ftrace markers, DTrace). The default "nop" backend generates empty trace event functions. Therefore trace events are disabled by default. The trace-events file serves two purposes: 1. Adding trace events is easy. It is not necessary to understand the details of a backend tracing system. The trace-events file is a single location where trace events can be declared without code duplication. 2. QEMU is not tightly coupled to one particular backend tracing system. In order to support tracing across QEMU host platforms and to anticipate new backend tracing systems that are currently maturing, it is important to be flexible and not tied to one system. This commit includes fixes from Prerna Saxena <prerna@linux.vnet.ibm.com> and Blue Swirl <blauwirbel@gmail.com>. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 00:52:39 +08:00
# 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:
#
trace: Support disabled events in trace-events Sometimes it is useful to disable a trace event. Removing the event from trace-events is not enough since source code will call the trace_*() function for the event. This patch makes it easy to build without specific trace events by marking them disabled in trace-events: disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d" This builds without the multiwrite_cb trace event. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> trace: Allow bulk enabling/disabling of trace events at compile time For 'simple' trace backend, allow bulk enabling/disabling of trace events at compile time. Trace events that are preceded by 'disable' keyword are compiled in, but turned off by default. These can individually be turned on using the monitor. All other trace events are enabled by default. TODO : This could be enhanced when the trace-event namespace is partitioned into a group and an ID within that group. In such a case, marking a group as enabled would automatically enable all trace-events listed under it. Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-24 18:32:09 +08:00
# [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>"
trace: Add trace-events file for declaring trace events This patch introduces the trace-events file where trace events can be declared like so: qemu_malloc(size_t size) "size %zu" qemu_free(void *ptr) "ptr %p" These trace event declarations are processed by a new tool called tracetool to generate code for the trace events. Trace event declarations are independent of the backend tracing system (LTTng User Space Tracing, ftrace markers, DTrace). The default "nop" backend generates empty trace event functions. Therefore trace events are disabled by default. The trace-events file serves two purposes: 1. Adding trace events is easy. It is not necessary to understand the details of a backend tracing system. The trace-events file is a single location where trace events can be declared without code duplication. 2. QEMU is not tightly coupled to one particular backend tracing system. In order to support tracing across QEMU host platforms and to anticipate new backend tracing systems that are currently maturing, it is important to be flexible and not tied to one system. This commit includes fixes from Prerna Saxena <prerna@linux.vnet.ibm.com> and Blue Swirl <blauwirbel@gmail.com>. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 00:52:39 +08:00
#
# Example: qemu_malloc(size_t size) "size %zu"
#
trace: Support disabled events in trace-events Sometimes it is useful to disable a trace event. Removing the event from trace-events is not enough since source code will call the trace_*() function for the event. This patch makes it easy to build without specific trace events by marking them disabled in trace-events: disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d" This builds without the multiwrite_cb trace event. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> trace: Allow bulk enabling/disabling of trace events at compile time For 'simple' trace backend, allow bulk enabling/disabling of trace events at compile time. Trace events that are preceded by 'disable' keyword are compiled in, but turned off by default. These can individually be turned on using the monitor. All other trace events are enabled by default. TODO : This could be enhanced when the trace-event namespace is partitioned into a group and an ID within that group. In such a case, marking a group as enabled would automatically enable all trace-events listed under it. Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-24 18:32:09 +08:00
# The "disable" keyword will build without the trace event.
# In case of 'simple' trace backend, it will allow the trace event to be
# compiled, but this would be turned off by default. It can be toggled on via
# the monitor.
#
trace: Add trace-events file for declaring trace events This patch introduces the trace-events file where trace events can be declared like so: qemu_malloc(size_t size) "size %zu" qemu_free(void *ptr) "ptr %p" These trace event declarations are processed by a new tool called tracetool to generate code for the trace events. Trace event declarations are independent of the backend tracing system (LTTng User Space Tracing, ftrace markers, DTrace). The default "nop" backend generates empty trace event functions. Therefore trace events are disabled by default. The trace-events file serves two purposes: 1. Adding trace events is easy. It is not necessary to understand the details of a backend tracing system. The trace-events file is a single location where trace events can be declared without code duplication. 2. QEMU is not tightly coupled to one particular backend tracing system. In order to support tracing across QEMU host platforms and to anticipate new backend tracing systems that are currently maturing, it is important to be flexible and not tied to one system. This commit includes fixes from Prerna Saxena <prerna@linux.vnet.ibm.com> and Blue Swirl <blauwirbel@gmail.com>. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 00:52:39 +08:00
# 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.
trace: Trace qemu_malloc() and qemu_vmalloc() It is often useful to instrument memory management functions in order to find leaks or performance problems. This patch adds trace events for the memory allocation primitives. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 01:09:25 +08:00
# qemu-malloc.c
disable qemu_malloc(size_t size, void *ptr) "size %zu ptr %p"
disable qemu_realloc(void *ptr, size_t size, void *newptr) "ptr %p size %zu newptr %p"
disable qemu_free(void *ptr) "ptr %p"
# osdep.c
disable qemu_memalign(size_t alignment, size_t size, void *ptr) "alignment %zu size %zu ptr %p"
trace: fix a typo There is no qemu_valloc() but qemu_vmalloc(). Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-09-11 04:54:56 +08:00
disable qemu_vmalloc(size_t size, void *ptr) "size %zu ptr %p"
trace: Trace qemu_malloc() and qemu_vmalloc() It is often useful to instrument memory management functions in order to find leaks or performance problems. This patch adds trace events for the memory allocation primitives. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 01:09:25 +08:00
disable qemu_vfree(void *ptr) "ptr %p"
trace: Trace virtio-blk, multiwrite, and paio_submit This patch adds trace events that make it possible to observe virtio-blk. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 01:15:08 +08:00
trace: Trace virtqueue operations This patch adds trace events for virtqueue operations including adding/removing buffers, notifying the guest, and receiving a notify from the guest. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-24 20:19:21 +08:00
# hw/virtio.c
disable virtqueue_fill(void *vq, const void *elem, unsigned int len, unsigned int idx) "vq %p elem %p len %u idx %u"
disable virtqueue_flush(void *vq, unsigned int count) "vq %p count %u"
disable virtqueue_pop(void *vq, void *elem, unsigned int in_num, unsigned int out_num) "vq %p elem %p in_num %u out_num %u"
disable virtio_queue_notify(void *vdev, int n, void *vq) "vdev %p n %d vq %p"
disable virtio_irq(void *vq) "vq %p"
disable virtio_notify(void *vdev, void *vq) "vdev %p vq %p"
virtio-serial-bus: Add trace events Add some trace events for messages passed between the guest and host. Signed-off-by: Amit Shah <amit.shah@redhat.com>
2011-07-05 19:06:39 +08:00
# hw/virtio-serial-bus.c
disable virtio_serial_send_control_event(unsigned int port, uint16_t event, uint16_t value) "port %u, event %u, value %u"
disable virtio_serial_throttle_port(unsigned int port, bool throttle) "port %u, throttle %d"
disable virtio_serial_handle_control_message(uint16_t event, uint16_t value) "event %u, value %u"
disable virtio_serial_handle_control_message_port(unsigned int port) "port %u"
virtio-console: Add some trace events Add some trace events for messages passed between the char layer and the virtio-serial bus. Signed-off-by: Amit Shah <amit.shah@redhat.com>
2011-07-05 19:07:49 +08:00
# hw/virtio-console.c
disable virtio_console_flush_buf(unsigned int port, size_t len, ssize_t ret) "port %u, in_len %zu, out_len %zd"
disable virtio_console_chr_read(unsigned int port, int size) "port %u, size %d"
disable virtio_console_chr_event(unsigned int port, int event) "port %u, event %d"
trace: Trace virtio-blk, multiwrite, and paio_submit This patch adds trace events that make it possible to observe virtio-blk. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 01:15:08 +08:00
# block.c
disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d"
disable bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p num_callbacks %d num_reqs %d"
disable bdrv_aio_multiwrite_earlyfail(void *mcb) "mcb %p"
disable bdrv_aio_multiwrite_latefail(void *mcb, int i) "mcb %p i %d"
trace: Trace bdrv_aio_flush() Add a trace event for bdrv_aio_flush() to complement the existing bdrv_aio_readv() and bdrv_aio_writev() events. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-03-07 15:58:04 +08:00
disable bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p"
trace: Trace bdrv_aio_{readv,writev} Observing block layer aio readv/writev operations is useful for debugging image formats or understanding guest disk I/O patterns. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-05 21:28:53 +08:00
disable bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
disable bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
trace: Trace bdrv_set_locked() It can be handy to know when the guest locks/unlocks the CD-ROM tray. This trace event makes that possible. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-03-30 03:04:40 +08:00
disable bdrv_set_locked(void *bs, int locked) "bs %p locked %d"
block: Add bdrv_co_readv/writev Add new block driver callbacks bdrv_co_readv/writev, which work on a QEMUIOVector like bdrv_aio_*, but don't need a callback. The function may only be called inside a coroutine, so a block driver implementing this interface can yield instead of blocking during I/O. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-07-14 23:27:13 +08:00
disable bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
disable bdrv_co_writev(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d"
block: Add bdrv_co_readv/writev emulation In order to be able to call bdrv_co_readv/writev for drivers that don't implement the functions natively, add an emulation that uses the AIO functions to implement them. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-07-15 19:50:26 +08:00
disable bdrv_co_io(int is_write, void *acb) "is_write %d acb %p"
trace: Trace virtio-blk, multiwrite, and paio_submit This patch adds trace events that make it possible to observe virtio-blk. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 01:15:08 +08:00
# hw/virtio-blk.c
disable virtio_blk_req_complete(void *req, int status) "req %p status %d"
disable virtio_blk_rw_complete(void *req, int ret) "req %p ret %d"
trace: Use portable format strings It is not portable to use "%ld" for int64_t because int64_t may have type long on 64-bit platforms and long long on 32-bit platforms. Use the standard library PRId64 macros to keep format strings portable. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-05 21:28:50 +08:00
disable virtio_blk_handle_write(void *req, uint64_t sector, size_t nsectors) "req %p sector %"PRIu64" nsectors %zu"
trace: Trace virtio-blk, multiwrite, and paio_submit This patch adds trace events that make it possible to observe virtio-blk. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-05-23 01:15:08 +08:00
# posix-aio-compat.c
trace: Use portable format strings It is not portable to use "%ld" for int64_t because int64_t may have type long on 64-bit platforms and long long on 32-bit platforms. Use the standard library PRId64 macros to keep format strings portable. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-05 21:28:50 +08:00
disable paio_submit(void *acb, void *opaque, int64_t sector_num, int nb_sectors, int type) "acb %p opaque %p sector_num %"PRId64" nb_sectors %d type %d"
trace: Trace posix-aio-compat.c completion and cancellation This patch adds paio_complete() and paio_cancel() trace events to complement the paio_submit() event. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-03-07 16:06:10 +08:00
disable paio_complete(void *acb, void *opaque, int ret) "acb %p opaque %p ret %d"
disable paio_cancel(void *acb, void *opaque) "acb %p opaque %p"
trace: Trace port IO Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-08-11 19:45:11 +08:00
# ioport.c
disable cpu_in(unsigned int addr, unsigned int val) "addr %#x value %u"
disable cpu_out(unsigned int addr, unsigned int val) "addr %#x value %u"
trace: Trace entry point of balloon request handler Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2010-08-11 19:46:03 +08:00
# balloon.c
# Since requests are raised via monitor, not many tracepoints are needed.
disable balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"
apic: convert debug printf statements to tracepoints Replace debug printf statements with tracepoints. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-21 00:41:28 +08:00
# hw/apic.c
disable apic_local_deliver(int vector, uint32_t lvt) "vector %d delivery mode %d"
disable apic_deliver_irq(uint8_t dest, uint8_t dest_mode, uint8_t delivery_mode, uint8_t vector_num, uint8_t polarity, uint8_t trigger_mode) "dest %d dest_mode %d delivery_mode %d vector %d polarity %d trigger_mode %d"
disable cpu_set_apic_base(uint64_t val) "%016"PRIx64""
disable cpu_get_apic_base(uint64_t val) "%016"PRIx64""
disable apic_mem_readl(uint64_t addr, uint32_t val) "%"PRIx64" = %08x"
disable apic_mem_writel(uint64_t addr, uint32_t val) "%"PRIx64" = %08x"
# coalescing
disable apic_reset_irq_delivered(int apic_irq_delivered) "old coalescing %d"
disable apic_get_irq_delivered(int apic_irq_delivered) "returning coalescing %d"
disable apic_set_irq(int apic_irq_delivered) "coalescing %d"
sparc32: convert debug printf statements to tracepoints Replace debug printf statements with tracepoints. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-31 17:24:14 +08:00
# hw/cs4231.c
disable cs4231_mem_readl_dreg(uint32_t reg, uint32_t ret) "read dreg %d: 0x%02x"
disable cs4231_mem_readl_reg(uint32_t reg, uint32_t ret) "read reg %d: 0x%08x"
disable cs4231_mem_writel_reg(uint32_t reg, uint32_t old, uint32_t val) "write reg %d: 0x%08x -> 0x%08x"
disable cs4231_mem_writel_dreg(uint32_t reg, uint32_t old, uint32_t val) "write dreg %d: 0x%02x -> 0x%02x"
ds1225y: use trace framework Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-19 05:34:21 +08:00
# hw/ds1225y.c
disable nvram_read(uint32_t addr, uint32_t ret) "read addr %d: 0x%02x"
disable nvram_write(uint32_t addr, uint32_t old, uint32_t val) "write addr %d: 0x%02x -> 0x%02x"
sparc32: convert debug printf statements to tracepoints Replace debug printf statements with tracepoints. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-10-31 17:24:14 +08:00
# hw/eccmemctl.c
disable ecc_mem_writel_mer(uint32_t val) "Write memory enable %08x"
disable ecc_mem_writel_mdr(uint32_t val) "Write memory delay %08x"
disable ecc_mem_writel_mfsr(uint32_t val) "Write memory fault status %08x"
disable ecc_mem_writel_vcr(uint32_t val) "Write slot configuration %08x"
disable ecc_mem_writel_dr(uint32_t val) "Write diagnostic %08x"
disable ecc_mem_writel_ecr0(uint32_t val) "Write event count 1 %08x"
disable ecc_mem_writel_ecr1(uint32_t val) "Write event count 2 %08x"
disable ecc_mem_readl_mer(uint32_t ret) "Read memory enable %08x"
disable ecc_mem_readl_mdr(uint32_t ret) "Read memory delay %08x"
disable ecc_mem_readl_mfsr(uint32_t ret) "Read memory fault status %08x"
disable ecc_mem_readl_vcr(uint32_t ret) "Read slot configuration %08x"
disable ecc_mem_readl_mfar0(uint32_t ret) "Read memory fault address 0 %08x"
disable ecc_mem_readl_mfar1(uint32_t ret) "Read memory fault address 1 %08x"
disable ecc_mem_readl_dr(uint32_t ret) "Read diagnostic %08x"
disable ecc_mem_readl_ecr0(uint32_t ret) "Read event count 1 %08x"
disable ecc_mem_readl_ecr1(uint32_t ret) "Read event count 2 %08x"
disable ecc_diag_mem_writeb(uint64_t addr, uint32_t val) "Write diagnostic %"PRId64" = %02x"
disable ecc_diag_mem_readb(uint64_t addr, uint32_t ret) "Read diagnostic %"PRId64"= %02x"
# hw/lance.c
disable lance_mem_readw(uint64_t addr, uint32_t ret) "addr=%"PRIx64"val=0x%04x"
disable lance_mem_writew(uint64_t addr, uint32_t val) "addr=%"PRIx64"val=0x%04x"
# hw/slavio_intctl.c
disable slavio_intctl_mem_readl(uint32_t cpu, uint64_t addr, uint32_t ret) "read cpu %d reg 0x%"PRIx64" = %x"
disable slavio_intctl_mem_writel(uint32_t cpu, uint64_t addr, uint32_t val) "write cpu %d reg 0x%"PRIx64" = %x"
disable slavio_intctl_mem_writel_clear(uint32_t cpu, uint32_t val, uint32_t intreg_pending) "Cleared cpu %d irq mask %x, curmask %x"
disable slavio_intctl_mem_writel_set(uint32_t cpu, uint32_t val, uint32_t intreg_pending) "Set cpu %d irq mask %x, curmask %x"
disable slavio_intctlm_mem_readl(uint64_t addr, uint32_t ret) "read system reg 0x%"PRIx64" = %x"
disable slavio_intctlm_mem_writel(uint64_t addr, uint32_t val) "write system reg 0x%"PRIx64" = %x"
disable slavio_intctlm_mem_writel_enable(uint32_t val, uint32_t intregm_disabled) "Enabled master irq mask %x, curmask %x"
disable slavio_intctlm_mem_writel_disable(uint32_t val, uint32_t intregm_disabled) "Disabled master irq mask %x, curmask %x"
disable slavio_intctlm_mem_writel_target(uint32_t cpu) "Set master irq cpu %d"
disable slavio_check_interrupts(uint32_t pending, uint32_t intregm_disabled) "pending %x disabled %x"
disable slavio_set_irq(uint32_t target_cpu, int irq, uint32_t pil, int level) "Set cpu %d irq %d -> pil %d level %d"
disable slavio_set_timer_irq_cpu(int cpu, int level) "Set cpu %d local timer level %d"
# hw/slavio_misc.c
disable slavio_misc_update_irq_raise(void) "Raise IRQ"
disable slavio_misc_update_irq_lower(void) "Lower IRQ"
disable slavio_set_power_fail(int power_failing, uint8_t config) "Power fail: %d, config: %d"
disable slavio_cfg_mem_writeb(uint32_t val) "Write config %02x"
disable slavio_cfg_mem_readb(uint32_t ret) "Read config %02x"
disable slavio_diag_mem_writeb(uint32_t val) "Write diag %02x"
disable slavio_diag_mem_readb(uint32_t ret) "Read diag %02x"
disable slavio_mdm_mem_writeb(uint32_t val) "Write modem control %02x"
disable slavio_mdm_mem_readb(uint32_t ret) "Read modem control %02x"
disable slavio_aux1_mem_writeb(uint32_t val) "Write aux1 %02x"
disable slavio_aux1_mem_readb(uint32_t ret) "Read aux1 %02x"
disable slavio_aux2_mem_writeb(uint32_t val) "Write aux2 %02x"
disable slavio_aux2_mem_readb(uint32_t ret) "Read aux2 %02x"
disable apc_mem_writeb(uint32_t val) "Write power management %02x"
disable apc_mem_readb(uint32_t ret) "Read power management %02x"
disable slavio_sysctrl_mem_writel(uint32_t val) "Write system control %08x"
disable slavio_sysctrl_mem_readl(uint32_t ret) "Read system control %08x"
disable slavio_led_mem_writew(uint32_t val) "Write diagnostic LED %04x"
disable slavio_led_mem_readw(uint32_t ret) "Read diagnostic LED %04x"
# hw/slavio_timer.c
disable slavio_timer_get_out(uint64_t limit, uint32_t counthigh, uint32_t count) "limit %"PRIx64" count %x%08x"
disable slavio_timer_irq(uint32_t counthigh, uint32_t count) "callback: count %x%08x"
disable slavio_timer_mem_readl_invalid(uint64_t addr) "invalid read address %"PRIx64""
disable slavio_timer_mem_readl(uint64_t addr, uint32_t ret) "read %"PRIx64" = %08x"
disable slavio_timer_mem_writel(uint64_t addr, uint32_t val) "write %"PRIx64" = %08x"
disable slavio_timer_mem_writel_limit(unsigned int timer_index, uint64_t count) "processor %d user timer set to %016"PRIx64""
disable slavio_timer_mem_writel_counter_invalid(void) "not user timer"
disable slavio_timer_mem_writel_status_start(unsigned int timer_index) "processor %d user timer started"
disable slavio_timer_mem_writel_status_stop(unsigned int timer_index) "processor %d user timer stopped"
disable slavio_timer_mem_writel_mode_user(unsigned int timer_index) "processor %d changed from counter to user timer"
disable slavio_timer_mem_writel_mode_counter(unsigned int timer_index) "processor %d changed from user timer to counter"
disable slavio_timer_mem_writel_mode_invalid(void) "not system timer"
disable slavio_timer_mem_writel_invalid(uint64_t addr) "invalid write address %"PRIx64""
# hw/sparc32_dma.c
disable ledma_memory_read(uint64_t addr) "DMA read addr 0x%"PRIx64""
disable ledma_memory_write(uint64_t addr) "DMA write addr 0x%"PRIx64""
disable sparc32_dma_set_irq_raise(void) "Raise IRQ"
disable sparc32_dma_set_irq_lower(void) "Lower IRQ"
disable espdma_memory_read(uint32_t addr) "DMA read addr 0x%08x"
disable espdma_memory_write(uint32_t addr) "DMA write addr 0x%08x"
disable sparc32_dma_mem_readl(uint64_t addr, uint32_t ret) "read dmareg %"PRIx64": 0x%08x"
disable sparc32_dma_mem_writel(uint64_t addr, uint32_t old, uint32_t val) "write dmareg %"PRIx64": 0x%08x -> 0x%08x"
disable sparc32_dma_enable_raise(void) "Raise DMA enable"
disable sparc32_dma_enable_lower(void) "Lower DMA enable"
# hw/sun4m.c
disable sun4m_cpu_interrupt(unsigned int level) "Set CPU IRQ %d"
disable sun4m_cpu_reset_interrupt(unsigned int level) "Reset CPU IRQ %d"
disable sun4m_cpu_set_irq_raise(int level) "Raise CPU IRQ %d"
disable sun4m_cpu_set_irq_lower(int level) "Lower CPU IRQ %d"
# hw/sun4m_iommu.c
disable sun4m_iommu_mem_readl(uint64_t addr, uint32_t ret) "read reg[%"PRIx64"] = %x"
disable sun4m_iommu_mem_writel(uint64_t addr, uint32_t val) "write reg[%"PRIx64"] = %x"
disable sun4m_iommu_mem_writel_ctrl(uint64_t iostart) "iostart = %"PRIx64""
disable sun4m_iommu_mem_writel_tlbflush(uint32_t val) "tlb flush %x"
disable sun4m_iommu_mem_writel_pgflush(uint32_t val) "page flush %x"
disable sun4m_iommu_page_get_flags(uint64_t pa, uint64_t iopte, uint32_t ret) "get flags addr %"PRIx64" => pte %"PRIx64", *pte = %x"
disable sun4m_iommu_translate_pa(uint64_t addr, uint64_t pa, uint32_t iopte) "xlate dva %"PRIx64" => pa %"PRIx64" iopte = %x"
disable sun4m_iommu_bad_addr(uint64_t addr) "bad addr %"PRIx64""
trace: Trace vm_start()/vm_stop() VM state change notifications are invoked from vm_start()/vm_stop(). Trace these state changes so we can reason about the state of the VM from trace output. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-11-16 20:20:25 +08:00
usb-ehci: trace mmio and usbsts This patch starts adding trace support to ehci. It traces updates of the status register (USBSTS), mmio access and controller reset. It also adds functions to set and clear status register bits and puts them in use everywhere. Some DPRINTF's are dropped in favor of the new tracepoints. No change in behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-18 16:12:58 +08:00
# hw/usb-ehci.c
disable usb_ehci_reset(void) "=== RESET ==="
disable usb_ehci_mmio_readl(uint32_t addr, const char *str, uint32_t val) "rd mmio %04x [%s] = %x"
usb-ehci: improve mmio tracing Add a separate tracepoint to log how register values change in response to a mmio write. Especially useful for registers which have read-only or clear-on-write bits in them. No change in behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-19 14:55:09 +08:00
disable usb_ehci_mmio_writel(uint32_t addr, const char *str, uint32_t val) "wr mmio %04x [%s] = %x"
disable usb_ehci_mmio_change(uint32_t addr, const char *str, uint32_t new, uint32_t old) "ch mmio %04x [%s] = %x (old: %x)"
usb-ehci: trace mmio and usbsts This patch starts adding trace support to ehci. It traces updates of the status register (USBSTS), mmio access and controller reset. It also adds functions to set and clear status register bits and puts them in use everywhere. Some DPRINTF's are dropped in favor of the new tracepoints. No change in behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-18 16:12:58 +08:00
disable usb_ehci_usbsts(const char *sts, int state) "usbsts %s %d"
usb-ehci: trace state machine changes Add functions to get and set the current state of the state machine, add tracepoints there to trace state transitions. Add support for traceing the queue heads and transfer descriptors as we look at them. Drop a few DPRINTFs and all DPRINTF_ST lines, they are obsolete now. No change in behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-18 20:23:35 +08:00
disable usb_ehci_state(const char *schedule, const char *state) "%s schedule %s"
usb-ehci: trace: rename "next" to "nxt". "next" is reserved in systemtap thus using this as a trace parameter name causes trouble when trying to trace with systemtap. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-07-20 21:44:01 +08:00
disable usb_ehci_qh_ptrs(void *q, uint32_t addr, uint32_t nxt, uint32_t c_qtd, uint32_t n_qtd, uint32_t a_qtd) "q %p - QH @ %08x: next %08x qtds %08x,%08x,%08x"
usb-ehci: split trace calls to handle arg count limits Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-06-06 18:31:34 +08:00
disable usb_ehci_qh_fields(uint32_t addr, int rl, int mplen, int eps, int ep, int devaddr) "QH @ %08x - rl %d, mplen %d, eps %d, ep %d, dev %d"
disable usb_ehci_qh_bits(uint32_t addr, int c, int h, int dtc, int i) "QH @ %08x - c %d, h %d, dtc %d, i %d"
usb-ehci: trace: rename "next" to "nxt". "next" is reserved in systemtap thus using this as a trace parameter name causes trouble when trying to trace with systemtap. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-07-20 21:44:01 +08:00
disable usb_ehci_qtd_ptrs(void *q, uint32_t addr, uint32_t nxt, uint32_t altnext) "q %p - QTD @ %08x: next %08x altnext %08x"
usb-ehci: split trace calls to handle arg count limits Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-06-06 18:31:34 +08:00
disable usb_ehci_qtd_fields(uint32_t addr, int tbytes, int cpage, int cerr, int pid) "QTD @ %08x - tbytes %d, cpage %d, cerr %d, pid %d"
disable usb_ehci_qtd_bits(uint32_t addr, int ioc, int active, int halt, int babble, int xacterr) "QTD @ %08x - ioc %d, active %d, halt %d, babble %d, xacterr %d"
usb-ehci: trace: rename "next" to "nxt". "next" is reserved in systemtap thus using this as a trace parameter name causes trouble when trying to trace with systemtap. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-07-20 21:44:01 +08:00
disable usb_ehci_itd(uint32_t addr, uint32_t nxt, uint32_t mplen, uint32_t mult, uint32_t ep, uint32_t devaddr) "ITD @ %08x: next %08x - mplen %d, mult %d, ep %d, dev %d"
usb-ehci: trace port state Trace usb port operations (attach, detach, reset), drop a few obsolete DPRINTF's. No change in behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-19 14:46:53 +08:00
disable usb_ehci_port_attach(uint32_t port, const char *device) "attach port #%d - %s"
disable usb_ehci_port_detach(uint32_t port) "detach port #%d"
disable usb_ehci_port_reset(uint32_t port, int enable) "reset port #%d - %d"
usb-ehci: trace buffer copy Add a trace point for buffer copies and drop the DPRINTF's. No change in behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-19 15:24:00 +08:00
disable usb_ehci_data(int rw, uint32_t cpage, uint32_t offset, uint32_t addr, uint32_t len, uint32_t bufpos) "write %d, cpage %d, offset 0x%03x, addr 0x%08x, len %d, bufpos %d"
usb-ehci: multiqueue support This patch adds support for keeping multiple queues going at the same time. One slow device will not affect other devices any more. The patch adds code to manage EHCIQueue structs. It also does a number of changes to the state machine: * The state machine will never ever stop in EXECUTING any more. Instead it will continue with the next queue (aka HORIZONTALQH) when the usb device returns USB_RET_ASYNC. * The state machine will stop processing when it figures it walks in circles (easy to figure now that we have a EHCIQueue struct for each QH we've processed). The bailout logic should not be needed any more. For now it is still in, but will assert() in case it triggers. * The state machine will just skip queues with a async USBPacket in flight. * The state machine will resume processing as soon as the async USBPacket is finished. The patch also takes care to flush the QH struct back to guest memory when needed, so we don't get stale data when (re-)loading it from guest memory in FETCHQH state. It also makes the writeback code to not touch the first three dwords of the QH struct as the EHCI must not write them. This actually fixes a bug where QH chaining changes (next ptr) by the linux ehci driver where overwritten by the emulated EHCI. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-19 23:56:19 +08:00
disable usb_ehci_queue_action(void *q, const char *action) "q %p: %s"
usb-ehci: trace mmio and usbsts This patch starts adding trace support to ehci. It traces updates of the status register (USBSTS), mmio access and controller reset. It also adds functions to set and clear status register bits and puts them in use everywhere. Some DPRINTF's are dropped in favor of the new tracepoints. No change in behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-05-18 16:12:58 +08:00
usb: data structs and helpers for usb descriptors. This patch adds hw/usb-desc.[ch] files. They carry data structures for various usb descriptors and helper functions to generate usb packets from the structures. The intention is to have a internal representation of the device desription which is more usable than the current char array blobs, so we can have common code handle common usb device emulation using the device description. The usage of this infrastructure is optional for usb drivers as there are cases such as pass-through where it probably isn't very useful. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-11-17 18:03:53 +08:00
# hw/usb-desc.c
disable usb_desc_device(int addr, int len, int ret) "dev %d query device, len %d, ret %d"
usb: add device qualifier support Add support for device_qualifier and other_speed_config descriptors. These are used to query the "other speed" configuration of usb 2.0 devices, i.e. in high-speed mode they return the full-speed configuration and visa versa. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-12-09 00:35:22 +08:00
disable usb_desc_device_qualifier(int addr, int len, int ret) "dev %d query device qualifier, len %d, ret %d"
usb: data structs and helpers for usb descriptors. This patch adds hw/usb-desc.[ch] files. They carry data structures for various usb descriptors and helper functions to generate usb packets from the structures. The intention is to have a internal representation of the device desription which is more usable than the current char array blobs, so we can have common code handle common usb device emulation using the device description. The usage of this infrastructure is optional for usb drivers as there are cases such as pass-through where it probably isn't very useful. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-11-17 18:03:53 +08:00
disable usb_desc_config(int addr, int index, int len, int ret) "dev %d query config %d, len %d, ret %d"
usb: add device qualifier support Add support for device_qualifier and other_speed_config descriptors. These are used to query the "other speed" configuration of usb 2.0 devices, i.e. in high-speed mode they return the full-speed configuration and visa versa. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-12-09 00:35:22 +08:00
disable usb_desc_other_speed_config(int addr, int index, int len, int ret) "dev %d query config %d, len %d, ret %d"
usb: data structs and helpers for usb descriptors. This patch adds hw/usb-desc.[ch] files. They carry data structures for various usb descriptors and helper functions to generate usb packets from the structures. The intention is to have a internal representation of the device desription which is more usable than the current char array blobs, so we can have common code handle common usb device emulation using the device description. The usage of this infrastructure is optional for usb drivers as there are cases such as pass-through where it probably isn't very useful. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-11-17 18:03:53 +08:00
disable usb_desc_string(int addr, int index, int len, int ret) "dev %d query string %d, len %d, ret %d"
usb: move USB_REQ_SET_ADDRESS handling to common code USB_REQ_SET_ADDRESS handling is identical in *all* emulated devices. Move it to common code. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-11-26 19:35:10 +08:00
disable usb_set_addr(int addr) "dev %d"
usb: move USB_REQ_{GET,SET}_CONFIGURATION handling to common code This patch adds fields to the USBDevice struct for the current speed (hard-wired to full speed for now) and current device configuration. Also a init function is added which inializes these fields. This allows USB_REQ_{GET,SET}_CONFIGURATION handling to be moved to common code. For most drivers the conversion is trivial ad they support a single configuration only anyway. One exception is bluetooth where some device-specific setup code runs after get/set configuration. The other is usb-net which actually has two configurations so the the code to check for the active configuration has been adapted. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-11-27 03:20:41 +08:00
disable usb_set_config(int addr, int config, int ret) "dev %d, config %d, ret %d"
usb: move remote wakeup handling to common code This patch moves setting and clearing the remote_wakeup feature bit (via USB_REQ_{SET,CLEAR}_FEATURE) to common code. Also USB_REQ_GET_STATUS handling is moved to common code. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-12-01 00:35:34 +08:00
disable usb_clear_device_feature(int addr, int feature, int ret) "dev %d, feature %d, ret %d"
disable usb_set_device_feature(int addr, int feature, int ret) "dev %d, feature %d, ret %d"
usb: data structs and helpers for usb descriptors. This patch adds hw/usb-desc.[ch] files. They carry data structures for various usb descriptors and helper functions to generate usb packets from the structures. The intention is to have a internal representation of the device desription which is more usable than the current char array blobs, so we can have common code handle common usb device emulation using the device description. The usage of this infrastructure is optional for usb drivers as there are cases such as pass-through where it probably isn't very useful. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2010-11-17 18:03:53 +08:00
scsi: add tracing of scsi requests Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2011-04-15 17:51:13 +08:00
# hw/scsi-bus.c
disable scsi_req_alloc(int target, int lun, int tag) "target %d lun %d tag %d"
scsi: introduce scsi_req_data This abstracts calling the command_complete callback, reducing churn in the following patches. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2011-04-18 20:59:13 +08:00
disable scsi_req_data(int target, int lun, int tag, int len) "target %d lun %d tag %d len %d"
scsi: add tracing of scsi requests Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2011-04-15 17:51:13 +08:00
disable scsi_req_dequeue(int target, int lun, int tag) "target %d lun %d tag %d"
scsi: introduce scsi_req_continue Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Cc: Christoph Hellwig <hch@lst.de>
2011-04-18 21:28:11 +08:00
disable scsi_req_continue(int target, int lun, int tag) "target %d lun %d tag %d"
scsi: fix tracing of scsi requests with simple backend The simple backend only supports a maximum of 6 arguments. Split the scsi_req_parsed event in two parts to cope with the limit. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-06-03 20:57:06 +08:00
disable scsi_req_parsed(int target, int lun, int tag, int cmd, int mode, int xfer) "target %d lun %d tag %d command %d dir %d length %d"
disable scsi_req_parsed_lba(int target, int lun, int tag, int cmd, uint64_t lba) "target %d lun %d tag %d command %d lba %"PRIu64""
scsi: add tracing of scsi requests Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
2011-04-15 17:51:13 +08:00
disable scsi_req_parse_bad(int target, int lun, int tag, int cmd) "target %d lun %d tag %d command %d"
trace: Trace vm_start()/vm_stop() VM state change notifications are invoked from vm_start()/vm_stop(). Trace these state changes so we can reason about the state of the VM from trace output. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-11-16 20:20:25 +08:00
# vl.c
disable vm_state_notify(int running, int reason) "running %d reason %d"
qed: Table, L2 cache, and cluster functions This patch adds code to look up data cluster offsets in the image via the L1/L2 tables. The L2 tables are writethrough cached in memory for performance (each read/write requires a lookup so it is essential to cache the tables). With cluster lookup code in place it is possible to implement bdrv_is_allocated() to query the number of contiguous allocated/unallocated clusters. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-07 00:08:01 +08:00
# block/qed-l2-cache.c
disable qed_alloc_l2_cache_entry(void *l2_cache, void *entry) "l2_cache %p entry %p"
disable qed_unref_l2_cache_entry(void *entry, int ref) "entry %p ref %d"
disable qed_find_l2_cache_entry(void *l2_cache, void *entry, uint64_t offset, int ref) "l2_cache %p entry %p offset %"PRIu64" ref %d"
# block/qed-table.c
disable qed_read_table(void *s, uint64_t offset, void *table) "s %p offset %"PRIu64" table %p"
disable qed_read_table_cb(void *s, void *table, int ret) "s %p table %p ret %d"
disable qed_write_table(void *s, uint64_t offset, void *table, unsigned int index, unsigned int n) "s %p offset %"PRIu64" table %p index %u n %u"
disable qed_write_table_cb(void *s, void *table, int flush, int ret) "s %p table %p flush %d ret %d"
qed: Read/write support This patch implements the read/write state machine. Operations are fully asynchronous and multiple operations may be active at any time. Allocating writes lock tables to ensure metadata updates do not interfere with each other. If two allocating writes need to update the same L2 table they will run sequentially. If two allocating writes need to update different L2 tables they will run in parallel. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-07 00:08:02 +08:00
# block/qed.c
qed: Periodically flush and clear need check bit One strategy to limit the startup delay of consistency check when opening image files is to ensure that the file is marked dirty for as little time as possible. QED currently marks the image dirty when the first allocating write request is issued and clears the dirty bit again when the image is cleanly closed. In practice that means the image is marked dirty for most of a guest's lifetime and prone to being in a dirty state upon crash or power failure. It is safe to clear the dirty bit after all allocating write requests have completed and a flush has been performed. This patch adds a timer after the last allocating write request completes. When the timer fires it will flush and then clear the dirty bit. The timer is set to 5 seconds and is cancelled upon arrival of a new allocating write request. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-09 23:45:40 +08:00
disable qed_need_check_timer_cb(void *s) "s %p"
disable qed_start_need_check_timer(void *s) "s %p"
disable qed_cancel_need_check_timer(void *s) "s %p"
qed: Read/write support This patch implements the read/write state machine. Operations are fully asynchronous and multiple operations may be active at any time. Allocating writes lock tables to ensure metadata updates do not interfere with each other. If two allocating writes need to update the same L2 table they will run sequentially. If two allocating writes need to update different L2 tables they will run in parallel. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-12-07 00:08:02 +08:00
disable qed_aio_complete(void *s, void *acb, int ret) "s %p acb %p ret %d"
disable qed_aio_setup(void *s, void *acb, int64_t sector_num, int nb_sectors, void *opaque, int is_write) "s %p acb %p sector_num %"PRId64" nb_sectors %d opaque %p is_write %d"
disable qed_aio_next_io(void *s, void *acb, int ret, uint64_t cur_pos) "s %p acb %p ret %d cur_pos %"PRIu64""
disable qed_aio_read_data(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu"
disable qed_aio_write_data(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu"
disable qed_aio_write_prefill(void *s, void *acb, uint64_t start, size_t len, uint64_t offset) "s %p acb %p start %"PRIu64" len %zu offset %"PRIu64""
disable qed_aio_write_postfill(void *s, void *acb, uint64_t start, size_t len, uint64_t offset) "s %p acb %p start %"PRIu64" len %zu offset %"PRIu64""
disable qed_aio_write_main(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu"
SPARC: Emulation of GRLIB GPTimer This device exposes three parameters: - frequency (uint32) : The system frequency - irq-line (uint32) : IRQ line number for the first timer (others use irq-line + 1, irq-line + 2...) - nr-timers (uint32) : Number of timers Emulation of GrLib devices is base on the GRLIB IP Core User's Manual: http://www.gaisler.com/products/grlib/grip.pdf Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-24 19:56:52 +08:00
# hw/grlib_gptimer.c
disable grlib_gptimer_enable(int id, uint32_t count) "timer:%d set count 0x%x and run"
disable grlib_gptimer_disabled(int id, uint32_t config) "timer:%d Timer disable config 0x%x"
disable grlib_gptimer_restart(int id, uint32_t reload) "timer:%d reload val: 0x%x"
disable grlib_gptimer_set_scaler(uint32_t scaler, uint32_t freq) "scaler:0x%x freq: 0x%x"
disable grlib_gptimer_hit(int id) "timer:%d HIT"
trace: Remove %s in grlib trace events Trace events cannot use %s in their format strings because trace backends vary in how they can deference pointers (if at all). Recording const char * values is not meaningful if their contents are not recorded too. Change grlib trace events that rely on strings so that they communicate similar information without using strings. A follow-up patch explains this limitation and updates docs/tracing.txt. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-15 01:11:00 +08:00
disable grlib_gptimer_readl(int id, uint64_t addr, uint32_t val) "timer:%d addr 0x%"PRIx64" 0x%x"
disable grlib_gptimer_writel(int id, uint64_t addr, uint32_t val) "timer:%d addr 0x%"PRIx64" 0x%x"
SPARC: Emulation of GRLIB IRQMP This device exposes two parameters: - set_pil_in (ptr) : A function to set the pil_in of the SPARC CPU - set_pil_in_opaque (ptr) : Opaque argument of the set_pil_in function Emulation of GrLib devices is base on the GRLIB IP Core User's Manual: http://www.gaisler.com/products/grlib/grip.pdf Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-24 19:56:53 +08:00
# hw/grlib_irqmp.c
disable grlib_irqmp_check_irqs(uint32_t pend, uint32_t force, uint32_t mask, uint32_t lvl1, uint32_t lvl2) "pend:0x%04x force:0x%04x mask:0x%04x lvl1:0x%04x lvl0:0x%04x\n"
disable grlib_irqmp_ack(int intno) "interrupt:%d"
disable grlib_irqmp_set_irq(int irq) "Raise CPU IRQ %d"
trace: Remove %s in grlib trace events Trace events cannot use %s in their format strings because trace backends vary in how they can deference pointers (if at all). Recording const char * values is not meaningful if their contents are not recorded too. Change grlib trace events that rely on strings so that they communicate similar information without using strings. A follow-up patch explains this limitation and updates docs/tracing.txt. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-15 01:11:00 +08:00
disable grlib_irqmp_readl_unknown(uint64_t addr) "addr 0x%"PRIx64""
disable grlib_irqmp_writel_unknown(uint64_t addr, uint32_t value) "addr 0x%"PRIx64" value 0x%x"
SPARC: Emulation of GRLIB APB UART This device exposes one parameter: - chardev (ptr) : Pointer to a qemu character device Emulation of GrLib devices is base on the GRLIB IP Core User's Manual: http://www.gaisler.com/products/grlib/grip.pdf Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-24 19:56:54 +08:00
# hw/grlib_apbuart.c
disable grlib_apbuart_event(int event) "event:%d"
trace: Remove %s in grlib trace events Trace events cannot use %s in their format strings because trace backends vary in how they can deference pointers (if at all). Recording const char * values is not meaningful if their contents are not recorded too. Change grlib trace events that rely on strings so that they communicate similar information without using strings. A follow-up patch explains this limitation and updates docs/tracing.txt. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-15 01:11:00 +08:00
disable grlib_apbuart_writel_unknown(uint64_t addr, uint32_t value) "addr 0x%"PRIx64" value 0x%x"
SPARC: Emulation of Leon3 Leon3 is an open-source VHDL System-On-Chip, well known in space industry (more information on http://www.gaisler.com). Leon3 is made of multiple components available in the GrLib VHDL library. Three devices are implemented: uart, timers and IRQ manager. You can find code for these peripherals in the grlib_* files. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-01-24 19:56:55 +08:00
# hw/leon3.c
disable leon3_set_irq(int intno) "Set CPU IRQ %d"
disable leon3_reset_irq(int intno) "Reset CPU IRQ %d"
Merge remote branch 'spice/spice.v29.pull' into staging Conflicts: trace-events
2011-02-02 05:22:48 +08:00
spice: add chardev (v5) Adding a chardev backend for spice, where spice determines what to do with it based on the name attribute given during chardev creation. For usage by spice vdagent in conjunction with a properly named virtio-serial device, and future smartcard channel usage. Example usage: qemu -device virtio-serial -chardev spicevmc,name=vdagent,id=vdagent \ -device virtserialport,chardev=vdagent,name=com.redhat.spice.0 v4->v5: * add tracing events * fix missing comma * fix help string to show debug is optional v3->v4: * updated commit message v1->v3 changes: (v2 had a wrong commit message) * removed spice-qemu-char.h, folded into ui/qemu-spice.h * removed dead IOCTL code * removed comment * removed ifdef CONFIG_SPICE from qemu-config.c and qemu-options.hx help. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-01-19 16:49:50 +08:00
# spice-qemu-char.c
trace: [trace-events] fix print formats in some events Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-04-07 02:34:11 +08:00
disable spice_vmc_write(ssize_t out, int len) "spice wrottn %zd of requested %d"
disable spice_vmc_read(int bytes, int len) "spice read %d of requested %d"
spice: add chardev (v5) Adding a chardev backend for spice, where spice determines what to do with it based on the name attribute given during chardev creation. For usage by spice vdagent in conjunction with a properly named virtio-serial device, and future smartcard channel usage. Example usage: qemu -device virtio-serial -chardev spicevmc,name=vdagent,id=vdagent \ -device virtserialport,chardev=vdagent,name=com.redhat.spice.0 v4->v5: * add tracing events * fix missing comma * fix help string to show debug is optional v3->v4: * updated commit message v1->v3 changes: (v2 had a wrong commit message) * removed spice-qemu-char.h, folded into ui/qemu-spice.h * removed dead IOCTL code * removed comment * removed ifdef CONFIG_SPICE from qemu-config.c and qemu-options.hx help. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-01-19 16:49:50 +08:00
disable spice_vmc_register_interface(void *scd) "spice vmc registered interface %p"
disable spice_vmc_unregister_interface(void *scd) "spice vmc unregistered interface %p"
lm32: interrupt controller model This patch adds the interrupt controller of the lm32. Because the PIC is accessed through special control registers and opcodes, there are callbacks from the lm32 translation code to this model. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-02-18 06:45:07 +08:00
# hw/lm32_pic.c
disable lm32_pic_raise_irq(void) "Raise CPU interrupt"
disable lm32_pic_lower_irq(void) "Lower CPU interrupt"
disable lm32_pic_interrupt(int irq, int level) "Set IRQ%d %d"
disable lm32_pic_set_im(uint32_t im) "im 0x%08x"
disable lm32_pic_set_ip(uint32_t ip) "ip 0x%08x"
disable lm32_pic_get_im(uint32_t im) "im 0x%08x"
disable lm32_pic_get_ip(uint32_t ip) "ip 0x%08x"
lm32: juart model This patch adds the JTAG UART model. It is accessed through special control registers and opcodes. Therefore the translation uses callbacks to this model. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-02-18 06:45:08 +08:00
# hw/lm32_juart.c
disable lm32_juart_get_jtx(uint32_t value) "jtx 0x%08x"
disable lm32_juart_set_jtx(uint32_t value) "jtx 0x%08x"
disable lm32_juart_get_jrx(uint32_t value) "jrx 0x%08x"
disable lm32_juart_set_jrx(uint32_t value) "jrx 0x%08x"
lm32: timer model This patch adds support for the LatticeMico32 system timer. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-02-18 06:45:10 +08:00
# hw/lm32_timer.c
disable lm32_timer_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
disable lm32_timer_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
disable lm32_timer_hit(void) "timer hit"
disable lm32_timer_irq_state(int level) "irq state %d"
lm32: uart model This patch add support for the LatticeMico32 UART. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-02-18 06:45:11 +08:00
# hw/lm32_uart.c
disable lm32_uart_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
disable lm32_uart_memory_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
disable lm32_uart_irq_state(int level) "irq state %d"
lm32: system control model This patch add support for a system control block. It is supposed to act as helper for the emulated program. E.g. shutting down the VM or printing test results. This model is intended for testing purposes only and doesn't fit to any real hardware. Therefore, it is not added to any board by default. Instead a user has to add it explicitly with the '-device' commandline parameter. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-02-18 06:45:12 +08:00
# hw/lm32_sys.c
disable lm32_sys_memory_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x"
lm32: add Milkymist AC97 support This patch adds support for the Milkymist AC97 compatible sound output and input core. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:32 +08:00
# hw/milkymist-ac97.c
disable milkymist_ac97_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_ac97_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_ac97_pulse_irq_crrequest(void) "Pulse IRQ CR request"
disable milkymist_ac97_pulse_irq_crreply(void) "Pulse IRQ CR reply"
disable milkymist_ac97_pulse_irq_dmaw(void) "Pulse IRQ DMA write"
disable milkymist_ac97_pulse_irq_dmar(void) "Pulse IRQ DMA read"
disable milkymist_ac97_in_cb(int avail, uint32_t remaining) "avail %d remaining %u"
disable milkymist_ac97_in_cb_transferred(int transferred) "transferred %d"
disable milkymist_ac97_out_cb(int free, uint32_t remaining) "free %d remaining %u"
disable milkymist_ac97_out_cb_transferred(int transferred) "transferred %d"
lm32: add Milkymist HPDMC support This patch adds support for the Milkymist's High Performance Dynamic Memory Controller. This is just a dumb model without any functionality. While the real hardware acts for example as a bridge between software and hardware for sending SDRAM commans, this model will only eat up these commands and always returns the expected hardware states, eg. PLL locked etc. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:33 +08:00
# hw/milkymist-hpdmc.c
lm32: add Milkymist memory card support This patch adds support for Milkymist's memory card core. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:34 +08:00
disable milkymist_hpdmc_memory_read(uint32_t addr, uint32_t value) "addr=%08x value=%08x"
disable milkymist_hpdmc_memory_write(uint32_t addr, uint32_t value) "addr=%08x value=%08x"
# hw/milkymist-memcard.c
disable milkymist_memcard_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_memcard_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
lm32: add Milkymist Minimac support This patch adds support for Milkymist's minimal Ethernet MAC. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:35 +08:00
lm32: add Milkymist Minimac2 support This patch adds support for Milkymist's minimal Ethernet MAC v2. It superseds minimac1. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-04-13 06:29:36 +08:00
# hw/milkymist-minimac2.c
disable milkymist_minimac2_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_minimac2_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_minimac2_mdio_write(uint8_t phy_addr, uint8_t addr, uint16_t value) "phy_addr %02x addr %02x value %04x"
disable milkymist_minimac2_mdio_read(uint8_t phy_addr, uint8_t addr, uint16_t value) "phy_addr %02x addr %02x value %04x"
disable milkymist_minimac2_tx_frame(uint32_t length) "length %u"
disable milkymist_minimac2_rx_frame(const void *buf, uint32_t length) "buf %p length %u"
disable milkymist_minimac2_drop_rx_frame(const void *buf) "buf %p"
disable milkymist_minimac2_rx_transfer(const void *buf, uint32_t length) "buf %p length %d"
disable milkymist_minimac2_raise_irq_rx(void) "Raise IRQ RX"
disable milkymist_minimac2_lower_irq_rx(void) "Lower IRQ RX"
disable milkymist_minimac2_pulse_irq_tx(void) "Pulse IRQ TX"
lm32: add Milkymist PFPU support This patch adds support for Milkymist's Programmable FPU. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:36 +08:00
# hw/milkymist-pfpu.c
disable milkymist_pfpu_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_pfpu_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_pfpu_vectout(uint32_t a, uint32_t b, uint32_t dma_ptr) "a %08x b %08x dma_ptr %08x"
disable milkymist_pfpu_pulse_irq(void) "Pulse IRQ"
lm32: add Milkymist SoftUSB support This patch adds support for Milkymist's SoftUSB core. This model differ from the real hardware in its functionality. The real hardware consits of a tiny freely programmable microcontroller which controls the USB ports. For simplicity reasons, this model emulates only keyboard and mouse input devices, eg. input events translates directly to the corresponding expected messages. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:37 +08:00
# hw/milkymist-softusb.c
disable milkymist_softusb_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_softusb_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_softusb_mevt(uint8_t m) "m %d"
disable milkymist_softusb_kevt(uint8_t m) "m %d"
disable milkymist_softusb_mouse_event(int dx, int dy, int dz, int bs) "dx %d dy %d dz %d bs %02x"
disable milkymist_softusb_pulse_irq(void) "Pulse IRQ"
lm32: add Milkymist System Controller support This patch adds support for Milkymist's System Controller core. The model has the following features: - support for shutting down and restarting the board - provide two timers and GPIO - provide registers for system identification and reading the boards capabilities Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:38 +08:00
# hw/milkymist-sysctl.c
disable milkymist_sysctl_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_sysctl_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_sysctl_icap_write(uint32_t value) "value %08x"
disable milkymist_sysctl_start_timer0(void) "Start timer0"
disable milkymist_sysctl_stop_timer0(void) "Stop timer0"
disable milkymist_sysctl_start_timer1(void) "Start timer1"
disable milkymist_sysctl_stop_timer1(void) "Stop timer1"
disable milkymist_sysctl_pulse_irq_timer0(void) "Pulse IRQ Timer0"
disable milkymist_sysctl_pulse_irq_timer1(void) "Pulse IRQ Timer1"
lm32: add Milkymist TMU2 support This patch adds support for Milkymist's texture mapping unit. For fast computation this model needs hardware accelerated 3D graphics support (OpenGL). There is no graphical output, all computations belong to internal framebuffers only. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:40 +08:00
# hw/milkymist-tmu2.c
disable milkymist_tmu2_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_tmu2_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_tmu2_start(void) "Start TMU"
disable milkymist_tmu2_pulse_irq(void) "Pulse IRQ"
lm32: add Milkymist UART support This patch adds support for Milkymist's simple UART. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:41 +08:00
# hw/milkymist-uart.c
disable milkymist_uart_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_uart_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_uart_pulse_irq_rx(void) "Pulse IRQ RX"
disable milkymist_uart_pulse_irq_tx(void) "Pulse IRQ TX"
lm32: add Milkymist VGAFB support This patch adds support for Milkymist's VGA framebuffer. Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-03-08 06:32:42 +08:00
# hw/milkymist-vgafb.c
disable milkymist_vgafb_memory_read(uint32_t addr, uint32_t value) "addr %08x value %08x"
disable milkymist_vgafb_memory_write(uint32_t addr, uint32_t value) "addr %08x value %08x"
xen: Introduce the Xen mapcache On IA32 host or IA32 PAE host, at present, generally, we can't create an HVM guest with more than 2G memory, because generally it's almost impossible for Qemu to find a large enough and consecutive virtual address space to map an HVM guest's whole physical address space. The attached patch fixes this issue using dynamic mapping based on little blocks of memory. Each call to qemu_get_ram_ptr makes a call to qemu_map_cache with the lock option, so mapcache will not unmap these ram_ptr. Blocks that do not belong to the RAM, but usually to a device ROM or to a framebuffer, are handled in a separate function. So the whole RAMBlock can be map. Signed-off-by: Jun Nakajima <jun.nakajima@intel.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2010-08-31 23:41:25 +08:00
# xen-all.c
disable xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx, size %#lx"
xen: Introduce VGA sync dirty bitmap support This patch introduces phys memory client for Xen. Only sync dirty_bitmap and set_memory are actually implemented. migration_log will stay empty for the moment. Xen can only log one range for bit change, so only the range in the first call will be synced. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-05-24 21:34:21 +08:00
disable xen_client_set_memory(uint64_t start_addr, unsigned long size, unsigned long phys_offset, bool log_dirty) "%#"PRIx64" size %#lx, offset %#lx, log_dirty %i"
xen: Introduce the Xen mapcache On IA32 host or IA32 PAE host, at present, generally, we can't create an HVM guest with more than 2G memory, because generally it's almost impossible for Qemu to find a large enough and consecutive virtual address space to map an HVM guest's whole physical address space. The attached patch fixes this issue using dynamic mapping based on little blocks of memory. Each call to qemu_get_ram_ptr makes a call to qemu_map_cache with the lock option, so mapcache will not unmap these ram_ptr. Blocks that do not belong to the RAM, but usually to a device ROM or to a framebuffer, are handled in a separate function. So the whole RAMBlock can be map. Signed-off-by: Jun Nakajima <jun.nakajima@intel.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2010-08-31 23:41:25 +08:00
# xen-mapcache.c
xen: Clean up map cache API naming The map cache is a Xen thing, so its API should make this clear. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-22 04:59:08 +08:00
disable xen_map_cache(uint64_t phys_addr) "want %#"PRIx64""
disable xen_remap_bucket(uint64_t index) "index %#"PRIx64""
disable xen_map_cache_return(void* ptr) "%p"
xen: Introduce the Xen mapcache On IA32 host or IA32 PAE host, at present, generally, we can't create an HVM guest with more than 2G memory, because generally it's almost impossible for Qemu to find a large enough and consecutive virtual address space to map an HVM guest's whole physical address space. The attached patch fixes this issue using dynamic mapping based on little blocks of memory. Each call to qemu_get_ram_ptr makes a call to qemu_map_cache with the lock option, so mapcache will not unmap these ram_ptr. Blocks that do not belong to the RAM, but usually to a device ROM or to a framebuffer, are handled in a separate function. So the whole RAMBlock can be map. Signed-off-by: Jun Nakajima <jun.nakajima@intel.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2010-08-31 23:41:25 +08:00
disable xen_map_block(uint64_t phys_addr, uint64_t size) "%#"PRIx64", size %#"PRIx64""
disable xen_unmap_block(void* addr, unsigned long size) "%p, size %#lx"
Introduce qemu_put_ram_ptr This function allows to unlock a ram_ptr give by qemu_get_ram_ptr. After a call to qemu_put_ram_ptr, the pointer may be unmap from QEMU when used with Xen. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2010-09-16 20:57:49 +08:00
# exec.c
disable qemu_put_ram_ptr(void* addr) "%p"
xen: Add the Xen platform pci device Introduce a new emulated PCI device, specific to fully virtualized Xen guests. The device is necessary for PV on HVM drivers to work. Signed-off-by: Steven Smith <ssmith@xensource.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2011-06-17 00:05:17 +08:00
# hw/xen_platform.c
disable xen_platform_log(char *s) "xen platform: %s"
coroutine: introduce coroutines Asynchronous code is becoming very complex. At the same time synchronous code is growing because it is convenient to write. Sometimes duplicate code paths are even added, one synchronous and the other asynchronous. This patch introduces coroutines which allow code that looks synchronous but is asynchronous under the covers. A coroutine has its own stack and is therefore able to preserve state across blocking operations, which traditionally require callback functions and manual marshalling of parameters. Creating and starting a coroutine is easy: coroutine = qemu_coroutine_create(my_coroutine); qemu_coroutine_enter(coroutine, my_data); The coroutine then executes until it returns or yields: void coroutine_fn my_coroutine(void *opaque) { MyData *my_data = opaque; /* do some work */ qemu_coroutine_yield(); /* do some more work */ } Yielding switches control back to the caller of qemu_coroutine_enter(). This is typically used to switch back to the main thread's event loop after issuing an asynchronous I/O request. The request callback will then invoke qemu_coroutine_enter() once more to switch back to the coroutine. Note that if coroutines are used only from threads which hold the global mutex they will never execute concurrently. This makes programming with coroutines easier than with threads. Race conditions cannot occur since only one coroutine may be active at any time. Other coroutines can only run across yield. This coroutines implementation is based on the gtk-vnc implementation written by Anthony Liguori <anthony@codemonkey.ws> but it has been significantly rewritten by Kevin Wolf <kwolf@redhat.com> to use setjmp()/longjmp() instead of the more expensive swapcontext() and by Paolo Bonzini <pbonzini@redhat.com> for Windows Fibers support. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-01-18 00:08:14 +08:00
# qemu-coroutine.c
disable qemu_coroutine_enter(void *from, void *to, void *opaque) "from %p to %p opaque %p"
disable qemu_coroutine_yield(void *from, void *to) "from %p to %p"
disable qemu_coroutine_terminate(void *co) "self %p"
Reference in New Issue Copy Permalink