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b7665c6027
VMs created on older versions on Xen will not have been provisioned with
pages to support creation of non-default ioreq servers. In this case
the ioreq server API is not supported and QEMU's only option is to fall
back to using the default ioreq server pages as it did prior to
commit 3996e85c ("Xen: Use the ioreq-server API when available").
This patch therefore changes the code in xen_common.h to stop considering
a failure of xc_hvm_create_ioreq_server() as a hard failure but simply
as an indication that the guest is too old to support the ioreq server
API. Instead a boolean is set to cause reversion to old behaviour such
that the default ioreq server is then used.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
179 lines
9.7 KiB
Plaintext
179 lines
9.7 KiB
Plaintext
# Trace events for debugging and performance instrumentation
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#
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# This file is processed by the tracetool script during the build.
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#
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# To add a new trace event:
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#
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# 1. Choose a name for the trace event. Declare its arguments and format
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# string.
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#
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# 2. Call the trace event from code using trace_##name, e.g. multiwrite_cb() ->
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# trace_multiwrite_cb(). The source file must #include "trace.h".
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#
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# Format of a trace event:
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#
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# [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>"
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#
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# Example: g_malloc(size_t size) "size %zu"
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#
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# The "disable" keyword will build without the trace event.
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#
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# The <name> must be a valid as a C function name.
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#
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# Types should be standard C types. Use void * for pointers because the trace
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# system may not have the necessary headers included.
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#
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# The <format-string> should be a sprintf()-compatible format string.
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# thread-pool.c
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thread_pool_submit(void *pool, void *req, void *opaque) "pool %p req %p opaque %p"
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thread_pool_complete(void *pool, void *req, void *opaque, int ret) "pool %p req %p opaque %p ret %d"
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thread_pool_cancel(void *req, void *opaque) "req %p opaque %p"
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# ioport.c
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cpu_in(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
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cpu_out(unsigned int addr, char size, unsigned int val) "addr %#x(%c) value %u"
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# balloon.c
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# Since requests are raised via monitor, not many tracepoints are needed.
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balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu"
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virtio_balloon_handle_output(const char *name, uint64_t gpa) "section name: %s gpa: %"PRIx64
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virtio_balloon_get_config(uint32_t num_pages, uint32_t actual) "num_pages: %d actual: %d"
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virtio_balloon_set_config(uint32_t actual, uint32_t oldactual) "actual: %d oldactual: %d"
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virtio_balloon_to_target(uint64_t target, uint32_t num_pages) "balloon target: %"PRIx64" num_pages: %d"
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# vl.c
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vm_state_notify(int running, int reason) "running %d reason %d"
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load_file(const char *name, const char *path) "name %s location %s"
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runstate_set(int new_state) "new state %d"
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system_wakeup_request(int reason) "reason=%d"
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qemu_system_shutdown_request(void) ""
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qemu_system_powerdown_request(void) ""
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# spice-qemu-char.c
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spice_vmc_write(ssize_t out, int len) "spice wrottn %zd of requested %d"
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spice_vmc_read(int bytes, int len) "spice read %d of requested %d"
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spice_vmc_register_interface(void *scd) "spice vmc registered interface %p"
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spice_vmc_unregister_interface(void *scd) "spice vmc unregistered interface %p"
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spice_vmc_event(int event) "spice vmc event %d"
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# xen-hvm.c
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xen_ram_alloc(unsigned long ram_addr, unsigned long size) "requested: %#lx, size %#lx"
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xen_client_set_memory(uint64_t start_addr, unsigned long size, bool log_dirty) "%#"PRIx64" size %#lx, log_dirty %i"
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xen_default_ioreq_server(void) ""
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xen_ioreq_server_create(uint32_t id) "id: %u"
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xen_ioreq_server_destroy(uint32_t id) "id: %u"
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xen_ioreq_server_state(uint32_t id, bool enable) "id: %u: enable: %i"
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xen_map_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
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xen_unmap_mmio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
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xen_map_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
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xen_unmap_portio_range(uint32_t id, uint64_t start_addr, uint64_t end_addr) "id: %u start: %#"PRIx64" end: %#"PRIx64
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xen_map_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x"
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xen_unmap_pcidev(uint32_t id, uint8_t bus, uint8_t dev, uint8_t func) "id: %u bdf: %02x.%02x.%02x"
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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"
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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"
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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"
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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"
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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"
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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"
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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"
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# xen-mapcache.c
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xen_map_cache(uint64_t phys_addr) "want %#"PRIx64
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xen_remap_bucket(uint64_t index) "index %#"PRIx64
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xen_map_cache_return(void* ptr) "%p"
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# qemu-coroutine.c
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qemu_coroutine_enter(void *from, void *to, void *opaque) "from %p to %p opaque %p"
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qemu_coroutine_yield(void *from, void *to) "from %p to %p"
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qemu_coroutine_terminate(void *co) "self %p"
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# qemu-coroutine-lock.c
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qemu_co_queue_run_restart(void *co) "co %p"
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qemu_co_queue_next(void *nxt) "next %p"
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qemu_co_mutex_lock_entry(void *mutex, void *self) "mutex %p self %p"
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qemu_co_mutex_lock_return(void *mutex, void *self) "mutex %p self %p"
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qemu_co_mutex_unlock_entry(void *mutex, void *self) "mutex %p self %p"
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qemu_co_mutex_unlock_return(void *mutex, void *self) "mutex %p self %p"
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# monitor.c
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handle_qmp_command(void *mon, const char *cmd_name) "mon %p cmd_name \"%s\""
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monitor_protocol_emitter(void *mon) "mon %p"
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monitor_protocol_event_handler(uint32_t event, void *qdict) "event=%d data=%p"
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monitor_protocol_event_emit(uint32_t event, void *data) "event=%d data=%p"
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monitor_protocol_event_queue(uint32_t event, void *qdict, uint64_t rate) "event=%d data=%p rate=%" PRId64
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monitor_protocol_event_throttle(uint32_t event, uint64_t rate) "event=%d rate=%" PRId64
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# dma-helpers.c
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dma_blk_io(void *dbs, void *bs, int64_t offset, bool to_dev) "dbs=%p bs=%p offset=%" PRId64 " to_dev=%d"
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dma_aio_cancel(void *dbs) "dbs=%p"
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dma_complete(void *dbs, int ret, void *cb) "dbs=%p ret=%d cb=%p"
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dma_blk_cb(void *dbs, int ret) "dbs=%p ret=%d"
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dma_map_wait(void *dbs) "dbs=%p"
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# kvm-all.c
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kvm_ioctl(int type, void *arg) "type 0x%x, arg %p"
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kvm_vm_ioctl(int type, void *arg) "type 0x%x, arg %p"
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kvm_vcpu_ioctl(int cpu_index, int type, void *arg) "cpu_index %d, type 0x%x, arg %p"
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kvm_run_exit(int cpu_index, uint32_t reason) "cpu_index %d, reason %d"
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kvm_device_ioctl(int fd, int type, void *arg) "dev fd %d, type 0x%x, arg %p"
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kvm_failed_reg_get(uint64_t id, const char *msg) "Warning: Unable to retrieve ONEREG %" PRIu64 " from KVM: %s"
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kvm_failed_reg_set(uint64_t id, const char *msg) "Warning: Unable to set ONEREG %" PRIu64 " to KVM: %s"
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kvm_irqchip_commit_routes(void) ""
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kvm_irqchip_add_msi_route(int virq) "Adding MSI route virq=%d"
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kvm_irqchip_update_msi_route(int virq) "Updating MSI route virq=%d"
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# TCG related tracing (mostly disabled by default)
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# cpu-exec.c
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disable exec_tb(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
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disable exec_tb_nocache(void *tb, uintptr_t pc) "tb:%p pc=0x%"PRIxPTR
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disable exec_tb_exit(void *last_tb, unsigned int flags) "tb:%p flags=%x"
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# translate-all.c
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translate_block(void *tb, uintptr_t pc, uint8_t *tb_code) "tb:%p, pc:0x%"PRIxPTR", tb_code:%p"
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# memory.c
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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"
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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"
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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"
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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"
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memory_region_tb_read(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
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memory_region_tb_write(int cpu_index, uint64_t addr, uint64_t value, unsigned size) "cpu %d addr %#"PRIx64" value %#"PRIx64" size %u"
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### Guest events, keep at bottom
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# @vaddr: Access' virtual address.
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# @info : Access' information (see below).
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#
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# Start virtual memory access (before any potential access violation).
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#
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# Does not include memory accesses performed by devices.
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#
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# Access information can be parsed as:
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#
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# struct mem_info {
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# uint8_t size_shift : 2; /* interpreted as "1 << size_shift" bytes */
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# bool sign_extend: 1; /* sign-extended */
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# uint8_t endianness : 1; /* 0: little, 1: big */
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# bool store : 1; /* wheter it's a store operation */
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# };
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#
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# Targets: TCG(all)
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disable vcpu tcg guest_mem_before(TCGv vaddr, uint8_t info) "info=%d", "vaddr=0x%016"PRIx64" info=%d"
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# @num: System call number.
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# @arg*: System call argument value.
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#
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# Start executing a guest system call in syscall emulation mode.
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#
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# Targets: TCG(all)
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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
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# @num: System call number.
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# @ret: System call result value.
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#
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# Finish executing a guest system call in syscall emulation mode.
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#
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# Targets: TCG(all)
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disable vcpu guest_user_syscall_ret(uint64_t num, uint64_t ret) "num=0x%016"PRIx64" ret=0x%016"PRIx64
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