4 * Copyright (c) 2003-2004 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
30 #include "monitor/qdev.h"
32 #include "hw/pci/pci.h"
33 #include "sysemu/watchdog.h"
34 #include "hw/loader.h"
35 #include "exec/gdbstub.h"
37 #include "net/slirp.h"
38 #include "chardev/char-fe.h"
39 #include "chardev/char-io.h"
40 #include "chardev/char-mux.h"
41 #include "ui/qemu-spice.h"
42 #include "sysemu/numa.h"
43 #include "monitor/monitor.h"
44 #include "qemu/config-file.h"
45 #include "qemu/readline.h"
46 #include "ui/console.h"
48 #include "sysemu/block-backend.h"
49 #include "audio/audio.h"
50 #include "disas/disas.h"
51 #include "sysemu/balloon.h"
52 #include "qemu/timer.h"
53 #include "sysemu/hw_accel.h"
55 #include "sysemu/tpm.h"
56 #include "qapi/qmp/qdict.h"
57 #include "qapi/qmp/qerror.h"
58 #include "qapi/qmp/qnum.h"
59 #include "qapi/qmp/qstring.h"
60 #include "qapi/qmp/qjson.h"
61 #include "qapi/qmp/json-parser.h"
62 #include "qapi/qmp/qlist.h"
63 #include "qom/object_interfaces.h"
64 #include "trace-root.h"
65 #include "trace/control.h"
66 #include "monitor/hmp-target.h"
67 #ifdef CONFIG_TRACE_SIMPLE
68 #include "trace/simple.h"
70 #include "exec/memory.h"
71 #include "exec/exec-all.h"
73 #include "qemu/option.h"
75 #include "qemu/thread.h"
76 #include "block/qapi.h"
77 #include "qapi/qapi-commands.h"
78 #include "qapi/qapi-events.h"
79 #include "qapi/error.h"
80 #include "qapi/qmp-event.h"
81 #include "qapi/qapi-introspect.h"
82 #include "sysemu/qtest.h"
83 #include "sysemu/cpus.h"
84 #include "sysemu/iothread.h"
85 #include "qemu/cutils.h"
88 #if defined(TARGET_S390X)
89 #include "hw/s390x/storage-keys.h"
90 #include "hw/s390x/storage-attributes.h"
97 * 'B' block device name
98 * 's' string (accept optional quote)
99 * 'S' it just appends the rest of the string (accept optional quote)
100 * 'O' option string of the form NAME=VALUE,...
101 * parsed according to QemuOptsList given by its name
102 * Example: 'device:O' uses qemu_device_opts.
103 * Restriction: only lists with empty desc are supported
104 * TODO lift the restriction
106 * 'l' target long (32 or 64 bit)
107 * 'M' Non-negative target long (32 or 64 bit), in user mode the
108 * value is multiplied by 2^20 (think Mebibyte)
109 * 'o' octets (aka bytes)
110 * user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
111 * K, k suffix, which multiplies the value by 2^60 for suffixes E
112 * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
113 * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
115 * user mode accepts an optional ms, us, ns suffix,
116 * which divides the value by 1e3, 1e6, 1e9, respectively
117 * '/' optional gdb-like print format (like "/10x")
119 * '?' optional type (for all types, except '/')
120 * '.' other form of optional type (for 'i' and 'l')
122 * user mode accepts "on" or "off"
123 * '-' optional parameter (eg. '-f')
127 typedef struct mon_cmd_t {
129 const char *args_type;
132 const char *flags; /* p=preconfig */
133 void (*cmd)(Monitor *mon, const QDict *qdict);
134 /* @sub_table is a list of 2nd level of commands. If it does not exist,
135 * cmd should be used. If it exists, sub_table[?].cmd should be
136 * used, and cmd of 1st level plays the role of help function.
138 struct mon_cmd_t *sub_table;
139 void (*command_completion)(ReadLineState *rs, int nb_args, const char *str);
142 /* file descriptors passed via SCM_RIGHTS */
143 typedef struct mon_fd_t mon_fd_t;
147 QLIST_ENTRY(mon_fd_t) next;
150 /* file descriptor associated with a file descriptor set */
151 typedef struct MonFdsetFd MonFdsetFd;
156 QLIST_ENTRY(MonFdsetFd) next;
159 /* file descriptor set containing fds passed via SCM_RIGHTS */
160 typedef struct MonFdset MonFdset;
163 QLIST_HEAD(, MonFdsetFd) fds;
164 QLIST_HEAD(, MonFdsetFd) dup_fds;
165 QLIST_ENTRY(MonFdset) next;
169 JSONMessageParser parser;
171 * When a client connects, we're in capabilities negotiation mode.
172 * @commands is &qmp_cap_negotiation_commands then. When command
173 * qmp_capabilities succeeds, we go into command mode, and
174 * @command becomes &qmp_commands.
176 QmpCommandList *commands;
177 bool capab_offered[QMP_CAPABILITY__MAX]; /* capabilities offered */
178 bool capab[QMP_CAPABILITY__MAX]; /* offered and accepted */
180 * Protects qmp request/response queue.
181 * Take monitor_lock first when you need both.
183 QemuMutex qmp_queue_lock;
184 /* Input queue that holds all the parsed QMP requests */
185 GQueue *qmp_requests;
189 * To prevent flooding clients, events can be throttled. The
190 * throttling is calculated globally, rather than per-Monitor
193 typedef struct MonitorQAPIEventState {
194 QAPIEvent event; /* Throttling state for this event type and... */
195 QDict *data; /* ... data, see qapi_event_throttle_equal() */
196 QEMUTimer *timer; /* Timer for handling delayed events */
197 QDict *qdict; /* Delayed event (if any) */
198 } MonitorQAPIEventState;
201 int64_t rate; /* Minimum time (in ns) between two events */
202 } MonitorQAPIEventConf;
208 int suspend_cnt; /* Needs to be accessed atomically */
213 * State used only in the thread "owning" the monitor.
214 * If @use_io_thread, this is @mon_iothread.
215 * Else, it's the main thread.
216 * These members can be safely accessed without locks.
222 BlockCompletionFunc *password_completion_cb;
223 void *password_opaque;
224 mon_cmd_t *cmd_table;
225 QTAILQ_ENTRY(Monitor) entry;
228 * The per-monitor lock. We can't access guest memory when holding
234 * Members that are protected by the per-monitor lock
236 QLIST_HEAD(, mon_fd_t) fds;
239 /* Read under either BQL or mon_lock, written with BQL+mon_lock. */
243 /* Shared monitor I/O thread */
244 IOThread *mon_iothread;
246 /* Bottom half to dispatch the requests received from I/O thread */
247 QEMUBH *qmp_dispatcher_bh;
250 /* Owner of the request */
252 /* "id" field of the request */
255 * Request object to be handled or Error to be reported
256 * (exactly one of them is non-null)
261 typedef struct QMPRequest QMPRequest;
263 /* QMP checker flags */
264 #define QMP_ACCEPT_UNKNOWNS 1
266 /* Protects mon_list, monitor_qapi_event_state. */
267 static QemuMutex monitor_lock;
268 static GHashTable *monitor_qapi_event_state;
269 static QTAILQ_HEAD(mon_list, Monitor) mon_list;
271 /* Protects mon_fdsets */
272 static QemuMutex mon_fdsets_lock;
273 static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
275 static int mon_refcount;
277 static mon_cmd_t mon_cmds[];
278 static mon_cmd_t info_cmds[];
280 QmpCommandList qmp_commands, qmp_cap_negotiation_commands;
282 __thread Monitor *cur_mon;
284 static void monitor_command_cb(void *opaque, const char *cmdline,
285 void *readline_opaque);
288 * Is @mon a QMP monitor?
290 static inline bool monitor_is_qmp(const Monitor *mon)
292 return (mon->flags & MONITOR_USE_CONTROL);
296 * Is @mon is using readline?
297 * Note: not all HMP monitors use readline, e.g., gdbserver has a
298 * non-interactive HMP monitor, so readline is not used there.
300 static inline bool monitor_uses_readline(const Monitor *mon)
302 return mon->flags & MONITOR_USE_READLINE;
305 static inline bool monitor_is_hmp_non_interactive(const Monitor *mon)
307 return !monitor_is_qmp(mon) && !monitor_uses_readline(mon);
311 * Return the clock to use for recording an event's time.
312 * It's QEMU_CLOCK_REALTIME, except for qtests it's
313 * QEMU_CLOCK_VIRTUAL, to support testing rate limits.
314 * Beware: result is invalid before configure_accelerator().
316 static inline QEMUClockType monitor_get_event_clock(void)
318 return qtest_enabled() ? QEMU_CLOCK_VIRTUAL : QEMU_CLOCK_REALTIME;
322 * Is the current monitor, if any, a QMP monitor?
324 bool monitor_cur_is_qmp(void)
326 return cur_mon && monitor_is_qmp(cur_mon);
329 void monitor_read_command(Monitor *mon, int show_prompt)
334 readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
336 readline_show_prompt(mon->rs);
339 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
343 readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
344 /* prompt is printed on return from the command handler */
347 monitor_printf(mon, "terminal does not support password prompting\n");
352 static void qmp_request_free(QMPRequest *req)
354 qobject_unref(req->id);
355 qobject_unref(req->req);
356 error_free(req->err);
360 /* Caller must hold mon->qmp.qmp_queue_lock */
361 static void monitor_qmp_cleanup_req_queue_locked(Monitor *mon)
363 while (!g_queue_is_empty(mon->qmp.qmp_requests)) {
364 qmp_request_free(g_queue_pop_head(mon->qmp.qmp_requests));
368 static void monitor_qmp_cleanup_queues(Monitor *mon)
370 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
371 monitor_qmp_cleanup_req_queue_locked(mon);
372 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
376 static void monitor_flush_locked(Monitor *mon);
378 static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
381 Monitor *mon = opaque;
383 qemu_mutex_lock(&mon->mon_lock);
385 monitor_flush_locked(mon);
386 qemu_mutex_unlock(&mon->mon_lock);
390 /* Caller must hold mon->mon_lock */
391 static void monitor_flush_locked(Monitor *mon)
397 if (mon->skip_flush) {
401 buf = qstring_get_str(mon->outbuf);
402 len = qstring_get_length(mon->outbuf);
404 if (len && !mon->mux_out) {
405 rc = qemu_chr_fe_write(&mon->chr, (const uint8_t *) buf, len);
406 if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
407 /* all flushed or error */
408 qobject_unref(mon->outbuf);
409 mon->outbuf = qstring_new();
414 QString *tmp = qstring_from_str(buf + rc);
415 qobject_unref(mon->outbuf);
418 if (mon->out_watch == 0) {
420 qemu_chr_fe_add_watch(&mon->chr, G_IO_OUT | G_IO_HUP,
421 monitor_unblocked, mon);
426 void monitor_flush(Monitor *mon)
428 qemu_mutex_lock(&mon->mon_lock);
429 monitor_flush_locked(mon);
430 qemu_mutex_unlock(&mon->mon_lock);
433 /* flush at every end of line */
434 static void monitor_puts(Monitor *mon, const char *str)
438 qemu_mutex_lock(&mon->mon_lock);
444 qstring_append_chr(mon->outbuf, '\r');
446 qstring_append_chr(mon->outbuf, c);
448 monitor_flush_locked(mon);
451 qemu_mutex_unlock(&mon->mon_lock);
454 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
461 if (monitor_is_qmp(mon)) {
465 buf = g_strdup_vprintf(fmt, ap);
466 monitor_puts(mon, buf);
470 void monitor_printf(Monitor *mon, const char *fmt, ...)
474 monitor_vprintf(mon, fmt, ap);
478 int monitor_fprintf(FILE *stream, const char *fmt, ...)
482 monitor_vprintf((Monitor *)stream, fmt, ap);
487 static void qmp_send_response(Monitor *mon, const QDict *rsp)
489 const QObject *data = QOBJECT(rsp);
492 json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
493 qobject_to_json(data);
494 assert(json != NULL);
496 qstring_append_chr(json, '\n');
497 monitor_puts(mon, qstring_get_str(json));
502 static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = {
503 /* Limit guest-triggerable events to 1 per second */
504 [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
505 [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
506 [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
507 [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
508 [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
509 [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
513 * Broadcast an event to all monitors.
514 * @qdict is the event object. Its member "event" must match @event.
515 * Caller must hold monitor_lock.
517 static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
521 trace_monitor_protocol_event_emit(event, qdict);
522 QTAILQ_FOREACH(mon, &mon_list, entry) {
523 if (monitor_is_qmp(mon)
524 && mon->qmp.commands != &qmp_cap_negotiation_commands) {
525 qmp_send_response(mon, qdict);
530 static void monitor_qapi_event_handler(void *opaque);
533 * Queue a new event for emission to Monitor instances,
534 * applying any rate limiting if required.
537 monitor_qapi_event_queue_no_reenter(QAPIEvent event, QDict *qdict)
539 MonitorQAPIEventConf *evconf;
540 MonitorQAPIEventState *evstate;
542 assert(event < QAPI_EVENT__MAX);
543 evconf = &monitor_qapi_event_conf[event];
544 trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
546 qemu_mutex_lock(&monitor_lock);
549 /* Unthrottled event */
550 monitor_qapi_event_emit(event, qdict);
552 QDict *data = qobject_to(QDict, qdict_get(qdict, "data"));
553 MonitorQAPIEventState key = { .event = event, .data = data };
555 evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
556 assert(!evstate || timer_pending(evstate->timer));
560 * Timer is pending for (at least) evconf->rate ns after
561 * last send. Store event for sending when timer fires,
562 * replacing a prior stored event if any.
564 qobject_unref(evstate->qdict);
565 evstate->qdict = qobject_ref(qdict);
568 * Last send was (at least) evconf->rate ns ago.
569 * Send immediately, and arm the timer to call
570 * monitor_qapi_event_handler() in evconf->rate ns. Any
571 * events arriving before then will be delayed until then.
573 int64_t now = qemu_clock_get_ns(monitor_get_event_clock());
575 monitor_qapi_event_emit(event, qdict);
577 evstate = g_new(MonitorQAPIEventState, 1);
578 evstate->event = event;
579 evstate->data = qobject_ref(data);
580 evstate->qdict = NULL;
581 evstate->timer = timer_new_ns(monitor_get_event_clock(),
582 monitor_qapi_event_handler,
584 g_hash_table_add(monitor_qapi_event_state, evstate);
585 timer_mod_ns(evstate->timer, now + evconf->rate);
589 qemu_mutex_unlock(&monitor_lock);
593 monitor_qapi_event_queue(QAPIEvent event, QDict *qdict)
596 * monitor_qapi_event_queue_no_reenter() is not reentrant: it
597 * would deadlock on monitor_lock. Work around by queueing
598 * events in thread-local storage.
599 * TODO: remove this, make it re-enter safe.
601 typedef struct MonitorQapiEvent {
604 QSIMPLEQ_ENTRY(MonitorQapiEvent) entry;
606 static __thread QSIMPLEQ_HEAD(, MonitorQapiEvent) event_queue;
607 static __thread bool reentered;
608 MonitorQapiEvent *ev;
611 QSIMPLEQ_INIT(&event_queue);
614 ev = g_new(MonitorQapiEvent, 1);
615 ev->qdict = qobject_ref(qdict);
617 QSIMPLEQ_INSERT_TAIL(&event_queue, ev, entry);
624 while ((ev = QSIMPLEQ_FIRST(&event_queue)) != NULL) {
625 QSIMPLEQ_REMOVE_HEAD(&event_queue, entry);
626 monitor_qapi_event_queue_no_reenter(ev->event, ev->qdict);
627 qobject_unref(ev->qdict);
635 * This function runs evconf->rate ns after sending a throttled
637 * If another event has since been stored, send it.
639 static void monitor_qapi_event_handler(void *opaque)
641 MonitorQAPIEventState *evstate = opaque;
642 MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
644 trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
645 qemu_mutex_lock(&monitor_lock);
647 if (evstate->qdict) {
648 int64_t now = qemu_clock_get_ns(monitor_get_event_clock());
650 monitor_qapi_event_emit(evstate->event, evstate->qdict);
651 qobject_unref(evstate->qdict);
652 evstate->qdict = NULL;
653 timer_mod_ns(evstate->timer, now + evconf->rate);
655 g_hash_table_remove(monitor_qapi_event_state, evstate);
656 qobject_unref(evstate->data);
657 timer_free(evstate->timer);
661 qemu_mutex_unlock(&monitor_lock);
664 static unsigned int qapi_event_throttle_hash(const void *key)
666 const MonitorQAPIEventState *evstate = key;
667 unsigned int hash = evstate->event * 255;
669 if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
670 hash += g_str_hash(qdict_get_str(evstate->data, "id"));
673 if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
674 hash += g_str_hash(qdict_get_str(evstate->data, "node-name"));
680 static gboolean qapi_event_throttle_equal(const void *a, const void *b)
682 const MonitorQAPIEventState *eva = a;
683 const MonitorQAPIEventState *evb = b;
685 if (eva->event != evb->event) {
689 if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
690 return !strcmp(qdict_get_str(eva->data, "id"),
691 qdict_get_str(evb->data, "id"));
694 if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
695 return !strcmp(qdict_get_str(eva->data, "node-name"),
696 qdict_get_str(evb->data, "node-name"));
702 static void monitor_qapi_event_init(void)
704 monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
705 qapi_event_throttle_equal);
706 qmp_event_set_func_emit(monitor_qapi_event_queue);
709 static void handle_hmp_command(Monitor *mon, const char *cmdline);
711 static void monitor_iothread_init(void);
713 static void monitor_data_init(Monitor *mon, bool skip_flush,
716 if (use_io_thread && !mon_iothread) {
717 monitor_iothread_init();
719 memset(mon, 0, sizeof(Monitor));
720 qemu_mutex_init(&mon->mon_lock);
721 qemu_mutex_init(&mon->qmp.qmp_queue_lock);
722 mon->outbuf = qstring_new();
723 /* Use *mon_cmds by default. */
724 mon->cmd_table = mon_cmds;
725 mon->skip_flush = skip_flush;
726 mon->use_io_thread = use_io_thread;
727 mon->qmp.qmp_requests = g_queue_new();
730 static void monitor_data_destroy(Monitor *mon)
732 g_free(mon->mon_cpu_path);
733 qemu_chr_fe_deinit(&mon->chr, false);
734 if (monitor_is_qmp(mon)) {
735 json_message_parser_destroy(&mon->qmp.parser);
737 readline_free(mon->rs);
738 qobject_unref(mon->outbuf);
739 qemu_mutex_destroy(&mon->mon_lock);
740 qemu_mutex_destroy(&mon->qmp.qmp_queue_lock);
741 monitor_qmp_cleanup_req_queue_locked(mon);
742 g_queue_free(mon->qmp.qmp_requests);
745 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
746 int64_t cpu_index, Error **errp)
749 Monitor *old_mon, hmp;
751 monitor_data_init(&hmp, true, false);
757 int ret = monitor_set_cpu(cpu_index);
760 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
766 handle_hmp_command(&hmp, command_line);
769 qemu_mutex_lock(&hmp.mon_lock);
770 if (qstring_get_length(hmp.outbuf) > 0) {
771 output = g_strdup(qstring_get_str(hmp.outbuf));
773 output = g_strdup("");
775 qemu_mutex_unlock(&hmp.mon_lock);
778 monitor_data_destroy(&hmp);
782 static int compare_cmd(const char *name, const char *list)
784 const char *p, *pstart;
790 p = qemu_strchrnul(p, '|');
791 if ((p - pstart) == len && !memcmp(pstart, name, len))
800 static int get_str(char *buf, int buf_size, const char **pp)
808 while (qemu_isspace(*p)) {
819 while (*p != '\0' && *p != '\"') {
835 printf("unsupported escape code: '\\%c'\n", c);
838 if ((q - buf) < buf_size - 1) {
842 if ((q - buf) < buf_size - 1) {
849 printf("unterminated string\n");
854 while (*p != '\0' && !qemu_isspace(*p)) {
855 if ((q - buf) < buf_size - 1) {
868 static void free_cmdline_args(char **args, int nb_args)
872 assert(nb_args <= MAX_ARGS);
874 for (i = 0; i < nb_args; i++) {
881 * Parse the command line to get valid args.
882 * @cmdline: command line to be parsed.
883 * @pnb_args: location to store the number of args, must NOT be NULL.
884 * @args: location to store the args, which should be freed by caller, must
887 * Returns 0 on success, negative on failure.
889 * NOTE: this parser is an approximate form of the real command parser. Number
890 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
891 * return with failure.
893 static int parse_cmdline(const char *cmdline,
894 int *pnb_args, char **args)
903 while (qemu_isspace(*p)) {
909 if (nb_args >= MAX_ARGS) {
912 ret = get_str(buf, sizeof(buf), &p);
916 args[nb_args] = g_strdup(buf);
923 free_cmdline_args(args, nb_args);
928 * Can command @cmd be executed in preconfig state?
930 static bool cmd_can_preconfig(const mon_cmd_t *cmd)
936 return strchr(cmd->flags, 'p');
939 static void help_cmd_dump_one(Monitor *mon,
940 const mon_cmd_t *cmd,
946 if (runstate_check(RUN_STATE_PRECONFIG) && !cmd_can_preconfig(cmd)) {
950 for (i = 0; i < prefix_args_nb; i++) {
951 monitor_printf(mon, "%s ", prefix_args[i]);
953 monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
956 /* @args[@arg_index] is the valid command need to find in @cmds */
957 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
958 char **args, int nb_args, int arg_index)
960 const mon_cmd_t *cmd;
963 /* No valid arg need to compare with, dump all in *cmds */
964 if (arg_index >= nb_args) {
965 for (cmd = cmds; cmd->name != NULL; cmd++) {
966 help_cmd_dump_one(mon, cmd, args, arg_index);
971 /* Find one entry to dump */
972 for (cmd = cmds; cmd->name != NULL; cmd++) {
973 if (compare_cmd(args[arg_index], cmd->name) &&
974 ((!runstate_check(RUN_STATE_PRECONFIG) ||
975 cmd_can_preconfig(cmd)))) {
976 if (cmd->sub_table) {
977 /* continue with next arg */
978 help_cmd_dump(mon, cmd->sub_table,
979 args, nb_args, arg_index + 1);
981 help_cmd_dump_one(mon, cmd, args, arg_index);
987 /* Command not found */
988 monitor_printf(mon, "unknown command: '");
989 for (i = 0; i <= arg_index; i++) {
990 monitor_printf(mon, "%s%s", args[i], i == arg_index ? "'\n" : " ");
994 static void help_cmd(Monitor *mon, const char *name)
996 char *args[MAX_ARGS];
999 /* 1. parse user input */
1001 /* special case for log, directly dump and return */
1002 if (!strcmp(name, "log")) {
1003 const QEMULogItem *item;
1004 monitor_printf(mon, "Log items (comma separated):\n");
1005 monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
1006 for (item = qemu_log_items; item->mask != 0; item++) {
1007 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
1012 if (parse_cmdline(name, &nb_args, args) < 0) {
1017 /* 2. dump the contents according to parsed args */
1018 help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
1020 free_cmdline_args(args, nb_args);
1023 static void do_help_cmd(Monitor *mon, const QDict *qdict)
1025 help_cmd(mon, qdict_get_try_str(qdict, "name"));
1028 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
1030 const char *tp_name = qdict_get_str(qdict, "name");
1031 bool new_state = qdict_get_bool(qdict, "option");
1032 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1033 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1034 Error *local_err = NULL;
1037 monitor_printf(mon, "argument vcpu must be positive");
1041 qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err);
1043 error_report_err(local_err);
1047 #ifdef CONFIG_TRACE_SIMPLE
1048 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
1050 const char *op = qdict_get_try_str(qdict, "op");
1051 const char *arg = qdict_get_try_str(qdict, "arg");
1054 st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
1055 } else if (!strcmp(op, "on")) {
1056 st_set_trace_file_enabled(true);
1057 } else if (!strcmp(op, "off")) {
1058 st_set_trace_file_enabled(false);
1059 } else if (!strcmp(op, "flush")) {
1060 st_flush_trace_buffer();
1061 } else if (!strcmp(op, "set")) {
1063 st_set_trace_file(arg);
1066 monitor_printf(mon, "unexpected argument \"%s\"\n", op);
1067 help_cmd(mon, "trace-file");
1072 static void hmp_info_help(Monitor *mon, const QDict *qdict)
1074 help_cmd(mon, "info");
1077 static void query_commands_cb(QmpCommand *cmd, void *opaque)
1079 CommandInfoList *info, **list = opaque;
1081 if (!cmd->enabled) {
1085 info = g_malloc0(sizeof(*info));
1086 info->value = g_malloc0(sizeof(*info->value));
1087 info->value->name = g_strdup(cmd->name);
1092 CommandInfoList *qmp_query_commands(Error **errp)
1094 CommandInfoList *list = NULL;
1096 qmp_for_each_command(cur_mon->qmp.commands, query_commands_cb, &list);
1101 EventInfoList *qmp_query_events(Error **errp)
1103 EventInfoList *info, *ev_list = NULL;
1106 for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
1107 const char *event_name = QAPIEvent_str(e);
1108 assert(event_name != NULL);
1109 info = g_malloc0(sizeof(*info));
1110 info->value = g_malloc0(sizeof(*info->value));
1111 info->value->name = g_strdup(event_name);
1113 info->next = ev_list;
1121 * Minor hack: generated marshalling suppressed for this command
1122 * ('gen': false in the schema) so we can parse the JSON string
1123 * directly into QObject instead of first parsing it with
1124 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
1125 * to QObject with generated output marshallers, every time. Instead,
1126 * we do it in test-qobject-input-visitor.c, just to make sure
1127 * qapi-gen.py's output actually conforms to the schema.
1129 static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
1132 *ret_data = qobject_from_qlit(&qmp_schema_qlit);
1136 * We used to define commands in qmp-commands.hx in addition to the
1137 * QAPI schema. This permitted defining some of them only in certain
1138 * configurations. query-commands has always reflected that (good,
1139 * because it lets QMP clients figure out what's actually available),
1140 * while query-qmp-schema never did (not so good). This function is a
1141 * hack to keep the configuration-specific commands defined exactly as
1142 * before, even though qmp-commands.hx is gone.
1144 * FIXME Educate the QAPI schema on configuration-specific commands,
1145 * and drop this hack.
1147 static void qmp_unregister_commands_hack(void)
1149 #ifndef CONFIG_REPLICATION
1150 qmp_unregister_command(&qmp_commands, "xen-set-replication");
1151 qmp_unregister_command(&qmp_commands, "query-xen-replication-status");
1152 qmp_unregister_command(&qmp_commands, "xen-colo-do-checkpoint");
1155 qmp_unregister_command(&qmp_commands, "rtc-reset-reinjection");
1156 qmp_unregister_command(&qmp_commands, "query-sev");
1157 qmp_unregister_command(&qmp_commands, "query-sev-launch-measure");
1158 qmp_unregister_command(&qmp_commands, "query-sev-capabilities");
1160 #ifndef TARGET_S390X
1161 qmp_unregister_command(&qmp_commands, "dump-skeys");
1164 qmp_unregister_command(&qmp_commands, "query-gic-capabilities");
1166 #if !defined(TARGET_S390X) && !defined(TARGET_I386)
1167 qmp_unregister_command(&qmp_commands, "query-cpu-model-expansion");
1169 #if !defined(TARGET_S390X)
1170 qmp_unregister_command(&qmp_commands, "query-cpu-model-baseline");
1171 qmp_unregister_command(&qmp_commands, "query-cpu-model-comparison");
1173 #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
1174 && !defined(TARGET_S390X)
1175 qmp_unregister_command(&qmp_commands, "query-cpu-definitions");
1179 static void monitor_init_qmp_commands(void)
1182 * Two command lists:
1183 * - qmp_commands contains all QMP commands
1184 * - qmp_cap_negotiation_commands contains just
1185 * "qmp_capabilities", to enforce capability negotiation
1188 qmp_init_marshal(&qmp_commands);
1190 qmp_register_command(&qmp_commands, "query-qmp-schema",
1191 qmp_query_qmp_schema, QCO_ALLOW_PRECONFIG);
1192 qmp_register_command(&qmp_commands, "device_add", qmp_device_add,
1194 qmp_register_command(&qmp_commands, "netdev_add", qmp_netdev_add,
1197 qmp_unregister_commands_hack();
1199 QTAILQ_INIT(&qmp_cap_negotiation_commands);
1200 qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
1201 qmp_marshal_qmp_capabilities, QCO_ALLOW_PRECONFIG);
1204 static bool qmp_oob_enabled(Monitor *mon)
1206 return mon->qmp.capab[QMP_CAPABILITY_OOB];
1209 static void monitor_qmp_caps_reset(Monitor *mon)
1211 memset(mon->qmp.capab_offered, 0, sizeof(mon->qmp.capab_offered));
1212 memset(mon->qmp.capab, 0, sizeof(mon->qmp.capab));
1213 mon->qmp.capab_offered[QMP_CAPABILITY_OOB] = mon->use_io_thread;
1217 * Accept QMP capabilities in @list for @mon.
1218 * On success, set mon->qmp.capab[], and return true.
1219 * On error, set @errp, and return false.
1221 static bool qmp_caps_accept(Monitor *mon, QMPCapabilityList *list,
1224 GString *unavailable = NULL;
1225 bool capab[QMP_CAPABILITY__MAX];
1227 memset(capab, 0, sizeof(capab));
1229 for (; list; list = list->next) {
1230 if (!mon->qmp.capab_offered[list->value]) {
1232 unavailable = g_string_new(QMPCapability_str(list->value));
1234 g_string_append_printf(unavailable, ", %s",
1235 QMPCapability_str(list->value));
1238 capab[list->value] = true;
1242 error_setg(errp, "Capability %s not available", unavailable->str);
1243 g_string_free(unavailable, true);
1247 memcpy(mon->qmp.capab, capab, sizeof(capab));
1251 void qmp_qmp_capabilities(bool has_enable, QMPCapabilityList *enable,
1254 if (cur_mon->qmp.commands == &qmp_commands) {
1255 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
1256 "Capabilities negotiation is already complete, command "
1261 if (!qmp_caps_accept(cur_mon, enable, errp)) {
1265 cur_mon->qmp.commands = &qmp_commands;
1268 /* Set the current CPU defined by the user. Callers must hold BQL. */
1269 int monitor_set_cpu(int cpu_index)
1273 cpu = qemu_get_cpu(cpu_index);
1277 g_free(cur_mon->mon_cpu_path);
1278 cur_mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu));
1282 /* Callers must hold BQL. */
1283 static CPUState *mon_get_cpu_sync(bool synchronize)
1287 if (cur_mon->mon_cpu_path) {
1288 cpu = (CPUState *) object_resolve_path_type(cur_mon->mon_cpu_path,
1291 g_free(cur_mon->mon_cpu_path);
1292 cur_mon->mon_cpu_path = NULL;
1295 if (!cur_mon->mon_cpu_path) {
1299 monitor_set_cpu(first_cpu->cpu_index);
1303 cpu_synchronize_state(cpu);
1308 CPUState *mon_get_cpu(void)
1310 return mon_get_cpu_sync(true);
1313 CPUArchState *mon_get_cpu_env(void)
1315 CPUState *cs = mon_get_cpu();
1317 return cs ? cs->env_ptr : NULL;
1320 int monitor_get_cpu_index(void)
1322 CPUState *cs = mon_get_cpu_sync(false);
1324 return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX;
1327 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
1329 bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false);
1334 monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index);
1335 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1341 monitor_printf(mon, "No CPU available\n");
1345 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1350 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
1352 if (!tcg_enabled()) {
1353 error_report("JIT information is only available with accel=tcg");
1357 dump_exec_info((FILE *)mon, monitor_fprintf);
1358 dump_drift_info((FILE *)mon, monitor_fprintf);
1361 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
1363 dump_opcount_info((FILE *)mon, monitor_fprintf);
1367 static void hmp_info_sync_profile(Monitor *mon, const QDict *qdict)
1369 int64_t max = qdict_get_try_int(qdict, "max", 10);
1370 bool mean = qdict_get_try_bool(qdict, "mean", false);
1371 bool coalesce = !qdict_get_try_bool(qdict, "no_coalesce", false);
1372 enum QSPSortBy sort_by;
1374 sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME;
1375 qsp_report((FILE *)mon, monitor_fprintf, max, sort_by, coalesce);
1378 static void hmp_info_history(Monitor *mon, const QDict *qdict)
1387 str = readline_get_history(mon->rs, i);
1390 monitor_printf(mon, "%d: '%s'\n", i, str);
1395 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
1397 CPUState *cs = mon_get_cpu();
1400 monitor_printf(mon, "No CPU available\n");
1403 cpu_dump_statistics(cs, (FILE *)mon, &monitor_fprintf, 0);
1406 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
1408 const char *name = qdict_get_try_str(qdict, "name");
1409 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1410 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1411 TraceEventInfoList *events;
1412 TraceEventInfoList *elem;
1413 Error *local_err = NULL;
1419 monitor_printf(mon, "argument vcpu must be positive");
1423 events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err);
1425 error_report_err(local_err);
1429 for (elem = events; elem != NULL; elem = elem->next) {
1430 monitor_printf(mon, "%s : state %u\n",
1432 elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
1434 qapi_free_TraceEventInfoList(events);
1437 void qmp_client_migrate_info(const char *protocol, const char *hostname,
1438 bool has_port, int64_t port,
1439 bool has_tls_port, int64_t tls_port,
1440 bool has_cert_subject, const char *cert_subject,
1443 if (strcmp(protocol, "spice") == 0) {
1444 if (!qemu_using_spice(errp)) {
1448 if (!has_port && !has_tls_port) {
1449 error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
1453 if (qemu_spice_migrate_info(hostname,
1454 has_port ? port : -1,
1455 has_tls_port ? tls_port : -1,
1457 error_setg(errp, QERR_UNDEFINED_ERROR);
1463 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
1466 static void hmp_logfile(Monitor *mon, const QDict *qdict)
1470 qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
1472 error_report_err(err);
1476 static void hmp_log(Monitor *mon, const QDict *qdict)
1479 const char *items = qdict_get_str(qdict, "items");
1481 if (!strcmp(items, "none")) {
1484 mask = qemu_str_to_log_mask(items);
1486 help_cmd(mon, "log");
1493 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
1495 const char *option = qdict_get_try_str(qdict, "option");
1496 if (!option || !strcmp(option, "on")) {
1498 } else if (!strcmp(option, "off")) {
1501 monitor_printf(mon, "unexpected option %s\n", option);
1505 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
1507 const char *device = qdict_get_try_str(qdict, "device");
1509 device = "tcp::" DEFAULT_GDBSTUB_PORT;
1510 if (gdbserver_start(device) < 0) {
1511 monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1513 } else if (strcmp(device, "none") == 0) {
1514 monitor_printf(mon, "Disabled gdbserver\n");
1516 monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1521 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
1523 const char *action = qdict_get_str(qdict, "action");
1524 if (select_watchdog_action(action) == -1) {
1525 monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1529 static void monitor_printc(Monitor *mon, int c)
1531 monitor_printf(mon, "'");
1534 monitor_printf(mon, "\\'");
1537 monitor_printf(mon, "\\\\");
1540 monitor_printf(mon, "\\n");
1543 monitor_printf(mon, "\\r");
1546 if (c >= 32 && c <= 126) {
1547 monitor_printf(mon, "%c", c);
1549 monitor_printf(mon, "\\x%02x", c);
1553 monitor_printf(mon, "'");
1556 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1557 hwaddr addr, int is_physical)
1559 int l, line_size, i, max_digits, len;
1562 CPUState *cs = mon_get_cpu();
1564 if (!cs && (format == 'i' || !is_physical)) {
1565 monitor_printf(mon, "Can not dump without CPU\n");
1569 if (format == 'i') {
1570 monitor_disas(mon, cs, addr, count, is_physical);
1574 len = wsize * count;
1583 max_digits = DIV_ROUND_UP(wsize * 8, 3);
1587 max_digits = (wsize * 8) / 4;
1591 max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33);
1600 monitor_printf(mon, TARGET_FMT_plx ":", addr);
1602 monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1607 cpu_physical_memory_read(addr, buf, l);
1609 if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) {
1610 monitor_printf(mon, " Cannot access memory\n");
1619 v = ldub_p(buf + i);
1622 v = lduw_p(buf + i);
1625 v = (uint32_t)ldl_p(buf + i);
1631 monitor_printf(mon, " ");
1634 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1637 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1640 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1643 monitor_printf(mon, "%*" PRId64, max_digits, v);
1646 monitor_printc(mon, v);
1651 monitor_printf(mon, "\n");
1657 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
1659 int count = qdict_get_int(qdict, "count");
1660 int format = qdict_get_int(qdict, "format");
1661 int size = qdict_get_int(qdict, "size");
1662 target_long addr = qdict_get_int(qdict, "addr");
1664 memory_dump(mon, count, format, size, addr, 0);
1667 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
1669 int count = qdict_get_int(qdict, "count");
1670 int format = qdict_get_int(qdict, "format");
1671 int size = qdict_get_int(qdict, "size");
1672 hwaddr addr = qdict_get_int(qdict, "addr");
1674 memory_dump(mon, count, format, size, addr, 1);
1677 static void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, Error **errp)
1679 MemoryRegionSection mrs = memory_region_find(get_system_memory(),
1683 error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr);
1687 if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) {
1688 error_setg(errp, "Memory at address 0x%" HWADDR_PRIx "is not RAM", addr);
1689 memory_region_unref(mrs.mr);
1694 return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region);
1697 static void hmp_gpa2hva(Monitor *mon, const QDict *qdict)
1699 hwaddr addr = qdict_get_int(qdict, "addr");
1700 Error *local_err = NULL;
1701 MemoryRegion *mr = NULL;
1704 ptr = gpa2hva(&mr, addr, &local_err);
1706 error_report_err(local_err);
1710 monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx
1712 addr, mr->name, ptr);
1714 memory_region_unref(mr);
1718 static uint64_t vtop(void *ptr, Error **errp)
1722 uintptr_t addr = (uintptr_t) ptr;
1723 uintptr_t pagesize = getpagesize();
1724 off_t offset = addr / pagesize * sizeof(pinfo);
1727 fd = open("/proc/self/pagemap", O_RDONLY);
1729 error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap");
1733 /* Force copy-on-write if necessary. */
1734 atomic_add((uint8_t *)ptr, 0);
1736 if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) {
1737 error_setg_errno(errp, errno, "Cannot read pagemap");
1740 if ((pinfo & (1ull << 63)) == 0) {
1741 error_setg(errp, "Page not present");
1744 ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1));
1751 static void hmp_gpa2hpa(Monitor *mon, const QDict *qdict)
1753 hwaddr addr = qdict_get_int(qdict, "addr");
1754 Error *local_err = NULL;
1755 MemoryRegion *mr = NULL;
1759 ptr = gpa2hva(&mr, addr, &local_err);
1761 error_report_err(local_err);
1765 physaddr = vtop(ptr, &local_err);
1767 error_report_err(local_err);
1769 monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx
1770 " (%s) is 0x%" PRIx64 "\n",
1771 addr, mr->name, (uint64_t) physaddr);
1774 memory_region_unref(mr);
1778 static void do_print(Monitor *mon, const QDict *qdict)
1780 int format = qdict_get_int(qdict, "format");
1781 hwaddr val = qdict_get_int(qdict, "val");
1785 monitor_printf(mon, "%#" HWADDR_PRIo, val);
1788 monitor_printf(mon, "%#" HWADDR_PRIx, val);
1791 monitor_printf(mon, "%" HWADDR_PRIu, val);
1795 monitor_printf(mon, "%" HWADDR_PRId, val);
1798 monitor_printc(mon, val);
1801 monitor_printf(mon, "\n");
1804 static void hmp_sum(Monitor *mon, const QDict *qdict)
1808 uint32_t start = qdict_get_int(qdict, "start");
1809 uint32_t size = qdict_get_int(qdict, "size");
1812 for(addr = start; addr < (start + size); addr++) {
1813 uint8_t val = address_space_ldub(&address_space_memory, addr,
1814 MEMTXATTRS_UNSPECIFIED, NULL);
1815 /* BSD sum algorithm ('sum' Unix command) */
1816 sum = (sum >> 1) | (sum << 15);
1819 monitor_printf(mon, "%05d\n", sum);
1822 static int mouse_button_state;
1824 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
1826 int dx, dy, dz, button;
1827 const char *dx_str = qdict_get_str(qdict, "dx_str");
1828 const char *dy_str = qdict_get_str(qdict, "dy_str");
1829 const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1831 dx = strtol(dx_str, NULL, 0);
1832 dy = strtol(dy_str, NULL, 0);
1833 qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
1834 qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
1837 dz = strtol(dz_str, NULL, 0);
1839 button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
1840 qemu_input_queue_btn(NULL, button, true);
1841 qemu_input_event_sync();
1842 qemu_input_queue_btn(NULL, button, false);
1845 qemu_input_event_sync();
1848 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
1850 static uint32_t bmap[INPUT_BUTTON__MAX] = {
1851 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
1852 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
1853 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
1855 int button_state = qdict_get_int(qdict, "button_state");
1857 if (mouse_button_state == button_state) {
1860 qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
1861 qemu_input_event_sync();
1862 mouse_button_state = button_state;
1865 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
1867 int size = qdict_get_int(qdict, "size");
1868 int addr = qdict_get_int(qdict, "addr");
1869 int has_index = qdict_haskey(qdict, "index");
1874 int index = qdict_get_int(qdict, "index");
1875 cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1883 val = cpu_inb(addr);
1887 val = cpu_inw(addr);
1891 val = cpu_inl(addr);
1895 monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1896 suffix, addr, size * 2, val);
1899 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
1901 int size = qdict_get_int(qdict, "size");
1902 int addr = qdict_get_int(qdict, "addr");
1903 int val = qdict_get_int(qdict, "val");
1905 addr &= IOPORTS_MASK;
1910 cpu_outb(addr, val);
1913 cpu_outw(addr, val);
1916 cpu_outl(addr, val);
1921 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
1923 Error *local_err = NULL;
1924 const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1926 qemu_boot_set(bootdevice, &local_err);
1928 error_report_err(local_err);
1930 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1934 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1936 bool flatview = qdict_get_try_bool(qdict, "flatview", false);
1937 bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
1938 bool owner = qdict_get_try_bool(qdict, "owner", false);
1940 mtree_info((fprintf_function)monitor_printf, mon, flatview, dispatch_tree,
1944 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1947 NumaNodeMem *node_mem;
1948 CpuInfoList *cpu_list, *cpu;
1950 cpu_list = qmp_query_cpus(&error_abort);
1951 node_mem = g_new0(NumaNodeMem, nb_numa_nodes);
1953 query_numa_node_mem(node_mem);
1954 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1955 for (i = 0; i < nb_numa_nodes; i++) {
1956 monitor_printf(mon, "node %d cpus:", i);
1957 for (cpu = cpu_list; cpu; cpu = cpu->next) {
1958 if (cpu->value->has_props && cpu->value->props->has_node_id &&
1959 cpu->value->props->node_id == i) {
1960 monitor_printf(mon, " %" PRIi64, cpu->value->CPU);
1963 monitor_printf(mon, "\n");
1964 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1965 node_mem[i].node_mem >> 20);
1966 monitor_printf(mon, "node %d plugged: %" PRId64 " MB\n", i,
1967 node_mem[i].node_plugged_mem >> 20);
1969 qapi_free_CpuInfoList(cpu_list);
1973 #ifdef CONFIG_PROFILER
1977 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1979 static int64_t last_cpu_exec_time;
1980 int64_t cpu_exec_time;
1983 cpu_exec_time = tcg_cpu_exec_time();
1984 delta = cpu_exec_time - last_cpu_exec_time;
1986 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
1987 dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
1988 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
1989 delta, delta / (double)NANOSECONDS_PER_SECOND);
1990 last_cpu_exec_time = cpu_exec_time;
1994 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1996 monitor_printf(mon, "Internal profiler not compiled\n");
2000 /* Capture support */
2001 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2003 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
2008 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2009 monitor_printf(mon, "[%d]: ", i);
2010 s->ops.info (s->opaque);
2014 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
2017 int n = qdict_get_int(qdict, "n");
2020 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2022 s->ops.destroy (s->opaque);
2023 QLIST_REMOVE (s, entries);
2030 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
2032 const char *path = qdict_get_str(qdict, "path");
2033 int has_freq = qdict_haskey(qdict, "freq");
2034 int freq = qdict_get_try_int(qdict, "freq", -1);
2035 int has_bits = qdict_haskey(qdict, "bits");
2036 int bits = qdict_get_try_int(qdict, "bits", -1);
2037 int has_channels = qdict_haskey(qdict, "nchannels");
2038 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2041 s = g_malloc0 (sizeof (*s));
2043 freq = has_freq ? freq : 44100;
2044 bits = has_bits ? bits : 16;
2045 nchannels = has_channels ? nchannels : 2;
2047 if (wav_start_capture (s, path, freq, bits, nchannels)) {
2048 monitor_printf(mon, "Failed to add wave capture\n");
2052 QLIST_INSERT_HEAD (&capture_head, s, entries);
2055 static qemu_acl *find_acl(Monitor *mon, const char *name)
2057 qemu_acl *acl = qemu_acl_find(name);
2060 monitor_printf(mon, "acl: unknown list '%s'\n", name);
2065 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
2067 const char *aclname = qdict_get_str(qdict, "aclname");
2068 qemu_acl *acl = find_acl(mon, aclname);
2069 qemu_acl_entry *entry;
2073 monitor_printf(mon, "policy: %s\n",
2074 acl->defaultDeny ? "deny" : "allow");
2075 QTAILQ_FOREACH(entry, &acl->entries, next) {
2077 monitor_printf(mon, "%d: %s %s\n", i,
2078 entry->deny ? "deny" : "allow", entry->match);
2083 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
2085 const char *aclname = qdict_get_str(qdict, "aclname");
2086 qemu_acl *acl = find_acl(mon, aclname);
2089 qemu_acl_reset(acl);
2090 monitor_printf(mon, "acl: removed all rules\n");
2094 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
2096 const char *aclname = qdict_get_str(qdict, "aclname");
2097 const char *policy = qdict_get_str(qdict, "policy");
2098 qemu_acl *acl = find_acl(mon, aclname);
2101 if (strcmp(policy, "allow") == 0) {
2102 acl->defaultDeny = 0;
2103 monitor_printf(mon, "acl: policy set to 'allow'\n");
2104 } else if (strcmp(policy, "deny") == 0) {
2105 acl->defaultDeny = 1;
2106 monitor_printf(mon, "acl: policy set to 'deny'\n");
2108 monitor_printf(mon, "acl: unknown policy '%s', "
2109 "expected 'deny' or 'allow'\n", policy);
2114 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
2116 const char *aclname = qdict_get_str(qdict, "aclname");
2117 const char *match = qdict_get_str(qdict, "match");
2118 const char *policy = qdict_get_str(qdict, "policy");
2119 int has_index = qdict_haskey(qdict, "index");
2120 int index = qdict_get_try_int(qdict, "index", -1);
2121 qemu_acl *acl = find_acl(mon, aclname);
2125 if (strcmp(policy, "allow") == 0) {
2127 } else if (strcmp(policy, "deny") == 0) {
2130 monitor_printf(mon, "acl: unknown policy '%s', "
2131 "expected 'deny' or 'allow'\n", policy);
2135 ret = qemu_acl_insert(acl, deny, match, index);
2137 ret = qemu_acl_append(acl, deny, match);
2139 monitor_printf(mon, "acl: unable to add acl entry\n");
2141 monitor_printf(mon, "acl: added rule at position %d\n", ret);
2145 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
2147 const char *aclname = qdict_get_str(qdict, "aclname");
2148 const char *match = qdict_get_str(qdict, "match");
2149 qemu_acl *acl = find_acl(mon, aclname);
2153 ret = qemu_acl_remove(acl, match);
2155 monitor_printf(mon, "acl: no matching acl entry\n");
2157 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2161 void qmp_getfd(const char *fdname, Error **errp)
2166 fd = qemu_chr_fe_get_msgfd(&cur_mon->chr);
2168 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2172 if (qemu_isdigit(fdname[0])) {
2174 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
2175 "a name not starting with a digit");
2179 qemu_mutex_lock(&cur_mon->mon_lock);
2180 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2181 if (strcmp(monfd->name, fdname) != 0) {
2187 qemu_mutex_unlock(&cur_mon->mon_lock);
2188 /* Make sure close() is outside critical section */
2193 monfd = g_malloc0(sizeof(mon_fd_t));
2194 monfd->name = g_strdup(fdname);
2197 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
2198 qemu_mutex_unlock(&cur_mon->mon_lock);
2201 void qmp_closefd(const char *fdname, Error **errp)
2206 qemu_mutex_lock(&cur_mon->mon_lock);
2207 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2208 if (strcmp(monfd->name, fdname) != 0) {
2212 QLIST_REMOVE(monfd, next);
2214 g_free(monfd->name);
2216 qemu_mutex_unlock(&cur_mon->mon_lock);
2217 /* Make sure close() is outside critical section */
2222 qemu_mutex_unlock(&cur_mon->mon_lock);
2223 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
2226 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
2230 qemu_mutex_lock(&mon->mon_lock);
2231 QLIST_FOREACH(monfd, &mon->fds, next) {
2234 if (strcmp(monfd->name, fdname) != 0) {
2240 /* caller takes ownership of fd */
2241 QLIST_REMOVE(monfd, next);
2242 g_free(monfd->name);
2244 qemu_mutex_unlock(&mon->mon_lock);
2249 qemu_mutex_unlock(&mon->mon_lock);
2250 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
2254 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
2256 MonFdsetFd *mon_fdset_fd;
2257 MonFdsetFd *mon_fdset_fd_next;
2259 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
2260 if ((mon_fdset_fd->removed ||
2261 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
2262 runstate_is_running()) {
2263 close(mon_fdset_fd->fd);
2264 g_free(mon_fdset_fd->opaque);
2265 QLIST_REMOVE(mon_fdset_fd, next);
2266 g_free(mon_fdset_fd);
2270 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
2271 QLIST_REMOVE(mon_fdset, next);
2276 static void monitor_fdsets_cleanup(void)
2278 MonFdset *mon_fdset;
2279 MonFdset *mon_fdset_next;
2281 qemu_mutex_lock(&mon_fdsets_lock);
2282 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
2283 monitor_fdset_cleanup(mon_fdset);
2285 qemu_mutex_unlock(&mon_fdsets_lock);
2288 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
2289 const char *opaque, Error **errp)
2292 Monitor *mon = cur_mon;
2295 fd = qemu_chr_fe_get_msgfd(&mon->chr);
2297 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2301 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
2302 has_opaque, opaque, errp);
2314 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
2316 MonFdset *mon_fdset;
2317 MonFdsetFd *mon_fdset_fd;
2320 qemu_mutex_lock(&mon_fdsets_lock);
2321 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2322 if (mon_fdset->id != fdset_id) {
2325 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2327 if (mon_fdset_fd->fd != fd) {
2330 mon_fdset_fd->removed = true;
2333 mon_fdset_fd->removed = true;
2336 if (has_fd && !mon_fdset_fd) {
2339 monitor_fdset_cleanup(mon_fdset);
2340 qemu_mutex_unlock(&mon_fdsets_lock);
2345 qemu_mutex_unlock(&mon_fdsets_lock);
2347 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
2350 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
2352 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
2355 FdsetInfoList *qmp_query_fdsets(Error **errp)
2357 MonFdset *mon_fdset;
2358 MonFdsetFd *mon_fdset_fd;
2359 FdsetInfoList *fdset_list = NULL;
2361 qemu_mutex_lock(&mon_fdsets_lock);
2362 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2363 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
2364 FdsetFdInfoList *fdsetfd_list = NULL;
2366 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
2367 fdset_info->value->fdset_id = mon_fdset->id;
2369 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2370 FdsetFdInfoList *fdsetfd_info;
2372 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
2373 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
2374 fdsetfd_info->value->fd = mon_fdset_fd->fd;
2375 if (mon_fdset_fd->opaque) {
2376 fdsetfd_info->value->has_opaque = true;
2377 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
2379 fdsetfd_info->value->has_opaque = false;
2382 fdsetfd_info->next = fdsetfd_list;
2383 fdsetfd_list = fdsetfd_info;
2386 fdset_info->value->fds = fdsetfd_list;
2388 fdset_info->next = fdset_list;
2389 fdset_list = fdset_info;
2391 qemu_mutex_unlock(&mon_fdsets_lock);
2396 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
2397 bool has_opaque, const char *opaque,
2400 MonFdset *mon_fdset = NULL;
2401 MonFdsetFd *mon_fdset_fd;
2404 qemu_mutex_lock(&mon_fdsets_lock);
2406 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2407 /* Break if match found or match impossible due to ordering by ID */
2408 if (fdset_id <= mon_fdset->id) {
2409 if (fdset_id < mon_fdset->id) {
2417 if (mon_fdset == NULL) {
2418 int64_t fdset_id_prev = -1;
2419 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
2423 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
2424 "a non-negative value");
2425 qemu_mutex_unlock(&mon_fdsets_lock);
2428 /* Use specified fdset ID */
2429 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2430 mon_fdset_cur = mon_fdset;
2431 if (fdset_id < mon_fdset_cur->id) {
2436 /* Use first available fdset ID */
2437 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2438 mon_fdset_cur = mon_fdset;
2439 if (fdset_id_prev == mon_fdset_cur->id - 1) {
2440 fdset_id_prev = mon_fdset_cur->id;
2447 mon_fdset = g_malloc0(sizeof(*mon_fdset));
2449 mon_fdset->id = fdset_id;
2451 mon_fdset->id = fdset_id_prev + 1;
2454 /* The fdset list is ordered by fdset ID */
2455 if (!mon_fdset_cur) {
2456 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
2457 } else if (mon_fdset->id < mon_fdset_cur->id) {
2458 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
2460 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
2464 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
2465 mon_fdset_fd->fd = fd;
2466 mon_fdset_fd->removed = false;
2468 mon_fdset_fd->opaque = g_strdup(opaque);
2470 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
2472 fdinfo = g_malloc0(sizeof(*fdinfo));
2473 fdinfo->fdset_id = mon_fdset->id;
2474 fdinfo->fd = mon_fdset_fd->fd;
2476 qemu_mutex_unlock(&mon_fdsets_lock);
2480 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
2485 MonFdset *mon_fdset;
2486 MonFdsetFd *mon_fdset_fd;
2490 qemu_mutex_lock(&mon_fdsets_lock);
2491 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2492 if (mon_fdset->id != fdset_id) {
2495 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2496 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2497 if (mon_fd_flags == -1) {
2502 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2503 ret = mon_fdset_fd->fd;
2513 qemu_mutex_unlock(&mon_fdsets_lock);
2518 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2520 MonFdset *mon_fdset;
2521 MonFdsetFd *mon_fdset_fd_dup;
2523 qemu_mutex_lock(&mon_fdsets_lock);
2524 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2525 if (mon_fdset->id != fdset_id) {
2528 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2529 if (mon_fdset_fd_dup->fd == dup_fd) {
2533 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2534 mon_fdset_fd_dup->fd = dup_fd;
2535 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2536 qemu_mutex_unlock(&mon_fdsets_lock);
2541 qemu_mutex_unlock(&mon_fdsets_lock);
2545 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2547 MonFdset *mon_fdset;
2548 MonFdsetFd *mon_fdset_fd_dup;
2550 qemu_mutex_lock(&mon_fdsets_lock);
2551 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2552 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2553 if (mon_fdset_fd_dup->fd == dup_fd) {
2555 QLIST_REMOVE(mon_fdset_fd_dup, next);
2556 if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
2557 monitor_fdset_cleanup(mon_fdset);
2561 qemu_mutex_unlock(&mon_fdsets_lock);
2562 return mon_fdset->id;
2569 qemu_mutex_unlock(&mon_fdsets_lock);
2573 int monitor_fdset_dup_fd_find(int dup_fd)
2575 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2578 void monitor_fdset_dup_fd_remove(int dup_fd)
2580 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2583 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2586 Error *local_err = NULL;
2588 if (!qemu_isdigit(fdname[0]) && mon) {
2589 fd = monitor_get_fd(mon, fdname, &local_err);
2591 fd = qemu_parse_fd(fdname);
2593 error_setg(&local_err, "Invalid file descriptor number '%s'",
2598 error_propagate(errp, local_err);
2607 /* Please update hmp-commands.hx when adding or changing commands */
2608 static mon_cmd_t info_cmds[] = {
2609 #include "hmp-commands-info.h"
2613 /* mon_cmds and info_cmds would be sorted at runtime */
2614 static mon_cmd_t mon_cmds[] = {
2615 #include "hmp-commands.h"
2619 /*******************************************************************/
2621 static const char *pch;
2622 static sigjmp_buf expr_env;
2625 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2626 expr_error(Monitor *mon, const char *fmt, ...)
2630 monitor_vprintf(mon, fmt, ap);
2631 monitor_printf(mon, "\n");
2633 siglongjmp(expr_env, 1);
2636 /* return 0 if OK, -1 if not found */
2637 static int get_monitor_def(target_long *pval, const char *name)
2639 const MonitorDef *md = target_monitor_defs();
2640 CPUState *cs = mon_get_cpu();
2645 if (cs == NULL || md == NULL) {
2649 for(; md->name != NULL; md++) {
2650 if (compare_cmd(name, md->name)) {
2651 if (md->get_value) {
2652 *pval = md->get_value(md, md->offset);
2654 CPUArchState *env = mon_get_cpu_env();
2655 ptr = (uint8_t *)env + md->offset;
2658 *pval = *(int32_t *)ptr;
2661 *pval = *(target_long *)ptr;
2672 ret = target_get_monitor_def(cs, name, &tmp);
2674 *pval = (target_long) tmp;
2680 static void next(void)
2684 while (qemu_isspace(*pch))
2689 static int64_t expr_sum(Monitor *mon);
2691 static int64_t expr_unary(Monitor *mon)
2700 n = expr_unary(mon);
2704 n = -expr_unary(mon);
2708 n = ~expr_unary(mon);
2714 expr_error(mon, "')' expected");
2721 expr_error(mon, "character constant expected");
2725 expr_error(mon, "missing terminating \' character");
2735 while ((*pch >= 'a' && *pch <= 'z') ||
2736 (*pch >= 'A' && *pch <= 'Z') ||
2737 (*pch >= '0' && *pch <= '9') ||
2738 *pch == '_' || *pch == '.') {
2739 if ((q - buf) < sizeof(buf) - 1)
2743 while (qemu_isspace(*pch))
2746 ret = get_monitor_def(®, buf);
2748 expr_error(mon, "unknown register");
2753 expr_error(mon, "unexpected end of expression");
2758 n = strtoull(pch, &p, 0);
2759 if (errno == ERANGE) {
2760 expr_error(mon, "number too large");
2763 expr_error(mon, "invalid char '%c' in expression", *p);
2766 while (qemu_isspace(*pch))
2774 static int64_t expr_prod(Monitor *mon)
2779 val = expr_unary(mon);
2782 if (op != '*' && op != '/' && op != '%')
2785 val2 = expr_unary(mon);
2794 expr_error(mon, "division by zero");
2805 static int64_t expr_logic(Monitor *mon)
2810 val = expr_prod(mon);
2813 if (op != '&' && op != '|' && op != '^')
2816 val2 = expr_prod(mon);
2833 static int64_t expr_sum(Monitor *mon)
2838 val = expr_logic(mon);
2841 if (op != '+' && op != '-')
2844 val2 = expr_logic(mon);
2853 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2856 if (sigsetjmp(expr_env, 0)) {
2860 while (qemu_isspace(*pch))
2862 *pval = expr_sum(mon);
2867 static int get_double(Monitor *mon, double *pval, const char **pp)
2869 const char *p = *pp;
2873 d = strtod(p, &tailp);
2875 monitor_printf(mon, "Number expected\n");
2878 if (d != d || d - d != 0) {
2879 /* NaN or infinity */
2880 monitor_printf(mon, "Bad number\n");
2889 * Store the command-name in cmdname, and return a pointer to
2890 * the remaining of the command string.
2892 static const char *get_command_name(const char *cmdline,
2893 char *cmdname, size_t nlen)
2896 const char *p, *pstart;
2899 while (qemu_isspace(*p))
2904 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2909 memcpy(cmdname, pstart, len);
2910 cmdname[len] = '\0';
2915 * Read key of 'type' into 'key' and return the current
2918 static char *key_get_info(const char *type, char **key)
2926 p = strchr(type, ':');
2933 str = g_malloc(len + 1);
2934 memcpy(str, type, len);
2941 static int default_fmt_format = 'x';
2942 static int default_fmt_size = 4;
2944 static int is_valid_option(const char *c, const char *typestr)
2952 typestr = strstr(typestr, option);
2953 return (typestr != NULL);
2956 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2957 const char *cmdname)
2959 const mon_cmd_t *cmd;
2961 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2962 if (compare_cmd(cmdname, cmd->name)) {
2971 * Parse command name from @cmdp according to command table @table.
2972 * If blank, return NULL.
2973 * Else, if no valid command can be found, report to @mon, and return
2975 * Else, change @cmdp to point right behind the name, and return its
2976 * command table entry.
2977 * Do not assume the return value points into @table! It doesn't when
2978 * the command is found in a sub-command table.
2980 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2981 const char *cmdp_start,
2986 const mon_cmd_t *cmd;
2989 /* extract the command name */
2990 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2994 cmd = search_dispatch_table(table, cmdname);
2996 monitor_printf(mon, "unknown command: '%.*s'\n",
2997 (int)(p - cmdp_start), cmdp_start);
3000 if (runstate_check(RUN_STATE_PRECONFIG) && !cmd_can_preconfig(cmd)) {
3001 monitor_printf(mon, "Command '%.*s' not available with -preconfig "
3002 "until after exit_preconfig.\n",
3003 (int)(p - cmdp_start), cmdp_start);
3007 /* filter out following useless space */
3008 while (qemu_isspace(*p)) {
3013 /* search sub command */
3014 if (cmd->sub_table != NULL && *p != '\0') {
3015 return monitor_parse_command(mon, cmdp_start, cmdp, cmd->sub_table);
3022 * Parse arguments for @cmd.
3023 * If it can't be parsed, report to @mon, and return NULL.
3024 * Else, insert command arguments into a QDict, and return it.
3025 * Note: On success, caller has to free the QDict structure.
3028 static QDict *monitor_parse_arguments(Monitor *mon,
3030 const mon_cmd_t *cmd)
3032 const char *typestr;
3035 const char *p = *endp;
3037 QDict *qdict = qdict_new();
3039 /* parse the parameters */
3040 typestr = cmd->args_type;
3042 typestr = key_get_info(typestr, &key);
3054 while (qemu_isspace(*p))
3056 if (*typestr == '?') {
3059 /* no optional string: NULL argument */
3063 ret = get_str(buf, sizeof(buf), &p);
3067 monitor_printf(mon, "%s: filename expected\n",
3071 monitor_printf(mon, "%s: block device name expected\n",
3075 monitor_printf(mon, "%s: string expected\n", cmd->name);
3080 qdict_put_str(qdict, key, buf);
3085 QemuOptsList *opts_list;
3088 opts_list = qemu_find_opts(key);
3089 if (!opts_list || opts_list->desc->name) {
3092 while (qemu_isspace(*p)) {
3097 if (get_str(buf, sizeof(buf), &p) < 0) {
3100 opts = qemu_opts_parse_noisily(opts_list, buf, true);
3104 qemu_opts_to_qdict(opts, qdict);
3105 qemu_opts_del(opts);
3110 int count, format, size;
3112 while (qemu_isspace(*p))
3118 if (qemu_isdigit(*p)) {
3120 while (qemu_isdigit(*p)) {
3121 count = count * 10 + (*p - '0');
3159 if (*p != '\0' && !qemu_isspace(*p)) {
3160 monitor_printf(mon, "invalid char in format: '%c'\n",
3165 format = default_fmt_format;
3166 if (format != 'i') {
3167 /* for 'i', not specifying a size gives -1 as size */
3169 size = default_fmt_size;
3170 default_fmt_size = size;
3172 default_fmt_format = format;
3175 format = default_fmt_format;
3176 if (format != 'i') {
3177 size = default_fmt_size;
3182 qdict_put_int(qdict, "count", count);
3183 qdict_put_int(qdict, "format", format);
3184 qdict_put_int(qdict, "size", size);
3193 while (qemu_isspace(*p))
3195 if (*typestr == '?' || *typestr == '.') {
3196 if (*typestr == '?') {
3204 while (qemu_isspace(*p))
3213 if (get_expr(mon, &val, &p))
3215 /* Check if 'i' is greater than 32-bit */
3216 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3217 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
3218 monitor_printf(mon, "integer is for 32-bit values\n");
3220 } else if (c == 'M') {
3222 monitor_printf(mon, "enter a positive value\n");
3227 qdict_put_int(qdict, key, val);
3236 while (qemu_isspace(*p)) {
3239 if (*typestr == '?') {
3245 ret = qemu_strtosz_MiB(p, &end, &val);
3246 if (ret < 0 || val > INT64_MAX) {
3247 monitor_printf(mon, "invalid size\n");
3250 qdict_put_int(qdict, key, val);
3258 while (qemu_isspace(*p))
3260 if (*typestr == '?') {
3266 if (get_double(mon, &val, &p) < 0) {
3269 if (p[0] && p[1] == 's') {
3272 val /= 1e3; p += 2; break;
3274 val /= 1e6; p += 2; break;
3276 val /= 1e9; p += 2; break;
3279 if (*p && !qemu_isspace(*p)) {
3280 monitor_printf(mon, "Unknown unit suffix\n");
3283 qdict_put(qdict, key, qnum_from_double(val));
3291 while (qemu_isspace(*p)) {
3295 while (qemu_isgraph(*p)) {
3298 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3300 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3303 monitor_printf(mon, "Expected 'on' or 'off'\n");
3306 qdict_put_bool(qdict, key, val);
3311 const char *tmp = p;
3318 while (qemu_isspace(*p))
3323 if(!is_valid_option(p, typestr)) {
3325 monitor_printf(mon, "%s: unsupported option -%c\n",
3337 qdict_put_bool(qdict, key, true);
3344 /* package all remaining string */
3347 while (qemu_isspace(*p)) {
3350 if (*typestr == '?') {
3353 /* no remaining string: NULL argument */
3359 monitor_printf(mon, "%s: string expected\n",
3363 qdict_put_str(qdict, key, p);
3369 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
3375 /* check that all arguments were parsed */
3376 while (qemu_isspace(*p))
3379 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3387 qobject_unref(qdict);
3392 static void handle_hmp_command(Monitor *mon, const char *cmdline)
3395 const mon_cmd_t *cmd;
3396 const char *cmd_start = cmdline;
3398 trace_handle_hmp_command(mon, cmdline);
3400 cmd = monitor_parse_command(mon, cmdline, &cmdline, mon->cmd_table);
3405 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
3407 while (cmdline > cmd_start && qemu_isspace(cmdline[-1])) {
3410 monitor_printf(mon, "Try \"help %.*s\" for more information\n",
3411 (int)(cmdline - cmd_start), cmd_start);
3415 cmd->cmd(mon, qdict);
3416 qobject_unref(qdict);
3419 static void cmd_completion(Monitor *mon, const char *name, const char *list)
3421 const char *p, *pstart;
3428 p = qemu_strchrnul(p, '|');
3430 if (len > sizeof(cmd) - 2)
3431 len = sizeof(cmd) - 2;
3432 memcpy(cmd, pstart, len);
3434 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3435 readline_add_completion(mon->rs, cmd);
3443 static void file_completion(Monitor *mon, const char *input)
3448 char file[1024], file_prefix[1024];
3452 p = strrchr(input, '/');
3455 pstrcpy(file_prefix, sizeof(file_prefix), input);
3456 pstrcpy(path, sizeof(path), ".");
3458 input_path_len = p - input + 1;
3459 memcpy(path, input, input_path_len);
3460 if (input_path_len > sizeof(path) - 1)
3461 input_path_len = sizeof(path) - 1;
3462 path[input_path_len] = '\0';
3463 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3466 ffs = opendir(path);
3475 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
3479 if (strstart(d->d_name, file_prefix, NULL)) {
3480 memcpy(file, input, input_path_len);
3481 if (input_path_len < sizeof(file))
3482 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3484 /* stat the file to find out if it's a directory.
3485 * In that case add a slash to speed up typing long paths
3487 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
3488 pstrcat(file, sizeof(file), "/");
3490 readline_add_completion(mon->rs, file);
3496 static const char *next_arg_type(const char *typestr)
3498 const char *p = strchr(typestr, ':');
3499 return (p != NULL ? ++p : typestr);
3502 static void add_completion_option(ReadLineState *rs, const char *str,
3505 if (!str || !option) {
3508 if (!strncmp(option, str, strlen(str))) {
3509 readline_add_completion(rs, option);
3513 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3516 ChardevBackendInfoList *list, *start;
3522 readline_set_completion_index(rs, len);
3524 start = list = qmp_query_chardev_backends(NULL);
3526 const char *chr_name = list->value->name;
3528 if (!strncmp(chr_name, str, len)) {
3529 readline_add_completion(rs, chr_name);
3533 qapi_free_ChardevBackendInfoList(start);
3536 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3545 readline_set_completion_index(rs, len);
3546 for (i = 0; i < NET_CLIENT_DRIVER__MAX; i++) {
3547 add_completion_option(rs, str, NetClientDriver_str(i));
3551 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3561 readline_set_completion_index(rs, len);
3562 list = elt = object_class_get_list(TYPE_DEVICE, false);
3565 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3567 name = object_class_get_name(OBJECT_CLASS(dc));
3569 if (dc->user_creatable
3570 && !strncmp(name, str, len)) {
3571 readline_add_completion(rs, name);
3578 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3588 readline_set_completion_index(rs, len);
3589 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3593 name = object_class_get_name(OBJECT_CLASS(elt->data));
3594 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3595 readline_add_completion(rs, name);
3602 static void peripheral_device_del_completion(ReadLineState *rs,
3603 const char *str, size_t len)
3605 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3606 GSList *list, *item;
3608 list = qdev_build_hotpluggable_device_list(peripheral);
3613 for (item = list; item; item = g_slist_next(item)) {
3614 DeviceState *dev = item->data;
3616 if (dev->id && !strncmp(str, dev->id, len)) {
3617 readline_add_completion(rs, dev->id);
3624 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3627 ChardevInfoList *list, *start;
3633 readline_set_completion_index(rs, len);
3635 start = list = qmp_query_chardev(NULL);
3637 ChardevInfo *chr = list->value;
3639 if (!strncmp(chr->label, str, len)) {
3640 readline_add_completion(rs, chr->label);
3644 qapi_free_ChardevInfoList(start);
3647 static void ringbuf_completion(ReadLineState *rs, const char *str)
3650 ChardevInfoList *list, *start;
3653 readline_set_completion_index(rs, len);
3655 start = list = qmp_query_chardev(NULL);
3657 ChardevInfo *chr_info = list->value;
3659 if (!strncmp(chr_info->label, str, len)) {
3660 Chardev *chr = qemu_chr_find(chr_info->label);
3661 if (chr && CHARDEV_IS_RINGBUF(chr)) {
3662 readline_add_completion(rs, chr_info->label);
3667 qapi_free_ChardevInfoList(start);
3670 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3675 ringbuf_completion(rs, str);
3678 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3687 readline_set_completion_index(rs, len);
3688 peripheral_device_del_completion(rs, str, len);
3691 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3693 ObjectPropertyInfoList *list, *start;
3700 readline_set_completion_index(rs, len);
3702 start = list = qmp_qom_list("/objects", NULL);
3704 ObjectPropertyInfo *info = list->value;
3706 if (!strncmp(info->type, "child<", 5)
3707 && !strncmp(info->name, str, len)) {
3708 readline_add_completion(rs, info->name);
3712 qapi_free_ObjectPropertyInfoList(start);
3715 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3724 sep = strrchr(str, '-');
3729 readline_set_completion_index(rs, len);
3730 for (i = 0; i < Q_KEY_CODE__MAX; i++) {
3731 if (!strncmp(str, QKeyCode_str(i), len)) {
3732 readline_add_completion(rs, QKeyCode_str(i));
3737 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3742 readline_set_completion_index(rs, len);
3744 NetClientState *ncs[MAX_QUEUE_NUM];
3746 count = qemu_find_net_clients_except(NULL, ncs,
3747 NET_CLIENT_DRIVER_NONE,
3749 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3750 const char *name = ncs[i]->name;
3751 if (!strncmp(str, name, len)) {
3752 readline_add_completion(rs, name);
3755 } else if (nb_args == 3) {
3756 add_completion_option(rs, str, "on");
3757 add_completion_option(rs, str, "off");
3761 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3764 NetClientState *ncs[MAX_QUEUE_NUM];
3771 readline_set_completion_index(rs, len);
3772 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC,
3774 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3776 const char *name = ncs[i]->name;
3777 if (strncmp(str, name, len)) {
3780 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3782 readline_add_completion(rs, name);
3787 void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
3792 readline_set_completion_index(rs, len);
3794 TraceEventIter iter;
3796 char *pattern = g_strdup_printf("%s*", str);
3797 trace_event_iter_init(&iter, pattern);
3798 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3799 readline_add_completion(rs, trace_event_get_name(ev));
3805 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3810 readline_set_completion_index(rs, len);
3812 TraceEventIter iter;
3814 char *pattern = g_strdup_printf("%s*", str);
3815 trace_event_iter_init(&iter, pattern);
3816 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3817 readline_add_completion(rs, trace_event_get_name(ev));
3820 } else if (nb_args == 3) {
3821 add_completion_option(rs, str, "on");
3822 add_completion_option(rs, str, "off");
3826 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3833 readline_set_completion_index(rs, strlen(str));
3834 for (i = 0; i < WATCHDOG_ACTION__MAX; i++) {
3835 add_completion_option(rs, str, WatchdogAction_str(i));
3839 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3845 readline_set_completion_index(rs, len);
3848 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
3849 const char *name = MigrationCapability_str(i);
3850 if (!strncmp(str, name, len)) {
3851 readline_add_completion(rs, name);
3854 } else if (nb_args == 3) {
3855 add_completion_option(rs, str, "on");
3856 add_completion_option(rs, str, "off");
3860 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3866 readline_set_completion_index(rs, len);
3869 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
3870 const char *name = MigrationParameter_str(i);
3871 if (!strncmp(str, name, len)) {
3872 readline_add_completion(rs, name);
3878 static void vm_completion(ReadLineState *rs, const char *str)
3881 BlockDriverState *bs;
3882 BdrvNextIterator it;
3885 readline_set_completion_index(rs, len);
3887 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
3888 SnapshotInfoList *snapshots, *snapshot;
3889 AioContext *ctx = bdrv_get_aio_context(bs);
3892 aio_context_acquire(ctx);
3893 if (bdrv_can_snapshot(bs)) {
3894 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
3896 aio_context_release(ctx);
3901 snapshot = snapshots;
3903 char *completion = snapshot->value->name;
3904 if (!strncmp(str, completion, len)) {
3905 readline_add_completion(rs, completion);
3907 completion = snapshot->value->id;
3908 if (!strncmp(str, completion, len)) {
3909 readline_add_completion(rs, completion);
3911 snapshot = snapshot->next;
3913 qapi_free_SnapshotInfoList(snapshots);
3918 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3921 vm_completion(rs, str);
3925 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3928 vm_completion(rs, str);
3932 static void monitor_find_completion_by_table(Monitor *mon,
3933 const mon_cmd_t *cmd_table,
3937 const char *cmdname;
3939 const char *ptype, *old_ptype, *str, *name;
3940 const mon_cmd_t *cmd;
3941 BlockBackend *blk = NULL;
3944 /* command completion */
3949 readline_set_completion_index(mon->rs, strlen(cmdname));
3950 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3951 if (!runstate_check(RUN_STATE_PRECONFIG) ||
3952 cmd_can_preconfig(cmd)) {
3953 cmd_completion(mon, cmdname, cmd->name);
3957 /* find the command */
3958 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3959 if (compare_cmd(args[0], cmd->name) &&
3960 (!runstate_check(RUN_STATE_PRECONFIG) ||
3961 cmd_can_preconfig(cmd))) {
3969 if (cmd->sub_table) {
3970 /* do the job again */
3971 monitor_find_completion_by_table(mon, cmd->sub_table,
3972 &args[1], nb_args - 1);
3975 if (cmd->command_completion) {
3976 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3980 ptype = next_arg_type(cmd->args_type);
3981 for(i = 0; i < nb_args - 2; i++) {
3982 if (*ptype != '\0') {
3983 ptype = next_arg_type(ptype);
3984 while (*ptype == '?')
3985 ptype = next_arg_type(ptype);
3988 str = args[nb_args - 1];
3990 while (*ptype == '-' && old_ptype != ptype) {
3992 ptype = next_arg_type(ptype);
3996 /* file completion */
3997 readline_set_completion_index(mon->rs, strlen(str));
3998 file_completion(mon, str);
4001 /* block device name completion */
4002 readline_set_completion_index(mon->rs, strlen(str));
4003 while ((blk = blk_next(blk)) != NULL) {
4004 name = blk_name(blk);
4005 if (str[0] == '\0' ||
4006 !strncmp(name, str, strlen(str))) {
4007 readline_add_completion(mon->rs, name);
4013 if (!strcmp(cmd->name, "help|?")) {
4014 monitor_find_completion_by_table(mon, cmd_table,
4015 &args[1], nb_args - 1);
4024 static void monitor_find_completion(void *opaque,
4025 const char *cmdline)
4027 Monitor *mon = opaque;
4028 char *args[MAX_ARGS];
4031 /* 1. parse the cmdline */
4032 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
4036 /* if the line ends with a space, it means we want to complete the
4038 len = strlen(cmdline);
4039 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
4040 if (nb_args >= MAX_ARGS) {
4043 args[nb_args++] = g_strdup("");
4046 /* 2. auto complete according to args */
4047 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
4050 free_cmdline_args(args, nb_args);
4053 static int monitor_can_read(void *opaque)
4055 Monitor *mon = opaque;
4057 return !atomic_mb_read(&mon->suspend_cnt);
4061 * Emit QMP response @rsp with ID @id to @mon.
4062 * Null @rsp can only happen for commands with QCO_NO_SUCCESS_RESP.
4063 * Nothing is emitted then.
4065 static void monitor_qmp_respond(Monitor *mon, QDict *rsp, QObject *id)
4069 qdict_put_obj(rsp, "id", qobject_ref(id));
4072 qmp_send_response(mon, rsp);
4076 static void monitor_qmp_dispatch(Monitor *mon, QObject *req, QObject *id)
4085 rsp = qmp_dispatch(mon->qmp.commands, req, qmp_oob_enabled(mon));
4089 if (mon->qmp.commands == &qmp_cap_negotiation_commands) {
4090 error = qdict_get_qdict(rsp, "error");
4092 && !g_strcmp0(qdict_get_try_str(error, "class"),
4093 QapiErrorClass_str(ERROR_CLASS_COMMAND_NOT_FOUND))) {
4094 /* Provide a more useful error message */
4095 qdict_del(error, "desc");
4096 qdict_put_str(error, "desc", "Expecting capabilities negotiation"
4097 " with 'qmp_capabilities'");
4101 monitor_qmp_respond(mon, rsp, id);
4106 * Pop a QMP request from a monitor request queue.
4107 * Return the request, or NULL all request queues are empty.
4108 * We are using round-robin fashion to pop the request, to avoid
4109 * processing commands only on a very busy monitor. To achieve that,
4110 * when we process one request on a specific monitor, we put that
4111 * monitor to the end of mon_list queue.
4113 static QMPRequest *monitor_qmp_requests_pop_any(void)
4115 QMPRequest *req_obj = NULL;
4118 qemu_mutex_lock(&monitor_lock);
4120 QTAILQ_FOREACH(mon, &mon_list, entry) {
4121 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4122 req_obj = g_queue_pop_head(mon->qmp.qmp_requests);
4123 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4131 * We found one request on the monitor. Degrade this monitor's
4132 * priority to lowest by re-inserting it to end of queue.
4134 QTAILQ_REMOVE(&mon_list, mon, entry);
4135 QTAILQ_INSERT_TAIL(&mon_list, mon, entry);
4138 qemu_mutex_unlock(&monitor_lock);
4143 static void monitor_qmp_bh_dispatcher(void *data)
4145 QMPRequest *req_obj = monitor_qmp_requests_pop_any();
4153 /* qmp_oob_enabled() might change after "qmp_capabilities" */
4154 need_resume = !qmp_oob_enabled(req_obj->mon);
4156 trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj->id) ?: "");
4157 monitor_qmp_dispatch(req_obj->mon, req_obj->req, req_obj->id);
4159 assert(req_obj->err);
4160 rsp = qmp_error_response(req_obj->err);
4161 req_obj->err = NULL;
4162 monitor_qmp_respond(req_obj->mon, rsp, NULL);
4167 /* Pairs with the monitor_suspend() in handle_qmp_command() */
4168 monitor_resume(req_obj->mon);
4170 qmp_request_free(req_obj);
4172 /* Reschedule instead of looping so the main loop stays responsive */
4173 qemu_bh_schedule(qmp_dispatcher_bh);
4176 #define QMP_REQ_QUEUE_LEN_MAX (8)
4178 static void handle_qmp_command(void *opaque, QObject *req, Error *err)
4180 Monitor *mon = opaque;
4183 QMPRequest *req_obj;
4185 assert(!req != !err);
4187 qdict = qobject_to(QDict, req);
4189 id = qobject_ref(qdict_get(qdict, "id"));
4190 qdict_del(qdict, "id");
4191 } /* else will fail qmp_dispatch() */
4193 if (req && trace_event_get_state_backends(TRACE_HANDLE_QMP_COMMAND)) {
4194 QString *req_json = qobject_to_json(req);
4195 trace_handle_qmp_command(mon, qstring_get_str(req_json));
4196 qobject_unref(req_json);
4199 if (qdict && qmp_is_oob(qdict)) {
4200 /* OOB commands are executed immediately */
4201 trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(id)
4203 monitor_qmp_dispatch(mon, req, id);
4209 req_obj = g_new0(QMPRequest, 1);
4215 /* Protect qmp_requests and fetching its length. */
4216 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4219 * If OOB is not enabled on the current monitor, we'll emulate the
4220 * old behavior that we won't process the current monitor any more
4221 * until it has responded. This helps make sure that as long as
4222 * OOB is not enabled, the server will never drop any command.
4224 if (!qmp_oob_enabled(mon)) {
4225 monitor_suspend(mon);
4227 /* Drop the request if queue is full. */
4228 if (mon->qmp.qmp_requests->length >= QMP_REQ_QUEUE_LEN_MAX) {
4229 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4231 * FIXME @id's scope is just @mon, and broadcasting it is
4232 * wrong. If another monitor's client has a command with
4233 * the same ID in flight, the event will incorrectly claim
4234 * that command was dropped.
4236 qapi_event_send_command_dropped(id,
4237 COMMAND_DROP_REASON_QUEUE_FULL);
4238 qmp_request_free(req_obj);
4244 * Put the request to the end of queue so that requests will be
4245 * handled in time order. Ownership for req_obj, req, id,
4246 * etc. will be delivered to the handler side.
4248 g_queue_push_tail(mon->qmp.qmp_requests, req_obj);
4249 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4251 /* Kick the dispatcher routine */
4252 qemu_bh_schedule(qmp_dispatcher_bh);
4255 static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
4257 Monitor *mon = opaque;
4259 json_message_parser_feed(&mon->qmp.parser, (const char *) buf, size);
4262 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4264 Monitor *old_mon = cur_mon;
4270 for (i = 0; i < size; i++)
4271 readline_handle_byte(cur_mon->rs, buf[i]);
4273 if (size == 0 || buf[size - 1] != 0)
4274 monitor_printf(cur_mon, "corrupted command\n");
4276 handle_hmp_command(cur_mon, (char *)buf);
4282 static void monitor_command_cb(void *opaque, const char *cmdline,
4283 void *readline_opaque)
4285 Monitor *mon = opaque;
4287 monitor_suspend(mon);
4288 handle_hmp_command(mon, cmdline);
4289 monitor_resume(mon);
4292 int monitor_suspend(Monitor *mon)
4294 if (monitor_is_hmp_non_interactive(mon)) {
4298 atomic_inc(&mon->suspend_cnt);
4300 if (monitor_is_qmp(mon) && mon->use_io_thread) {
4302 * Kick I/O thread to make sure this takes effect. It'll be
4303 * evaluated again in prepare() of the watch object.
4305 aio_notify(iothread_get_aio_context(mon_iothread));
4308 trace_monitor_suspend(mon, 1);
4312 void monitor_resume(Monitor *mon)
4314 if (monitor_is_hmp_non_interactive(mon)) {
4318 if (atomic_dec_fetch(&mon->suspend_cnt) == 0) {
4319 if (monitor_is_qmp(mon)) {
4321 * For QMP monitors that are running in the I/O thread,
4322 * let's kick the thread in case it's sleeping.
4324 if (mon->use_io_thread) {
4325 aio_notify(iothread_get_aio_context(mon_iothread));
4329 readline_show_prompt(mon->rs);
4331 qemu_chr_fe_accept_input(&mon->chr);
4333 trace_monitor_suspend(mon, -1);
4336 static QDict *qmp_greeting(Monitor *mon)
4338 QList *cap_list = qlist_new();
4339 QObject *ver = NULL;
4342 qmp_marshal_query_version(NULL, &ver, NULL);
4344 for (cap = 0; cap < QMP_CAPABILITY__MAX; cap++) {
4345 if (mon->qmp.capab_offered[cap]) {
4346 qlist_append_str(cap_list, QMPCapability_str(cap));
4350 return qdict_from_jsonf_nofail(
4351 "{'QMP': {'version': %p, 'capabilities': %p}}",
4355 static void monitor_qmp_event(void *opaque, int event)
4358 Monitor *mon = opaque;
4361 case CHR_EVENT_OPENED:
4362 mon->qmp.commands = &qmp_cap_negotiation_commands;
4363 monitor_qmp_caps_reset(mon);
4364 data = qmp_greeting(mon);
4365 qmp_send_response(mon, data);
4366 qobject_unref(data);
4369 case CHR_EVENT_CLOSED:
4371 * Note: this is only useful when the output of the chardev
4372 * backend is still open. For example, when the backend is
4373 * stdio, it's possible that stdout is still open when stdin
4376 monitor_qmp_cleanup_queues(mon);
4377 json_message_parser_destroy(&mon->qmp.parser);
4378 json_message_parser_init(&mon->qmp.parser, handle_qmp_command,
4381 monitor_fdsets_cleanup();
4386 static void monitor_event(void *opaque, int event)
4388 Monitor *mon = opaque;
4391 case CHR_EVENT_MUX_IN:
4392 qemu_mutex_lock(&mon->mon_lock);
4394 qemu_mutex_unlock(&mon->mon_lock);
4395 if (mon->reset_seen) {
4396 readline_restart(mon->rs);
4397 monitor_resume(mon);
4400 atomic_mb_set(&mon->suspend_cnt, 0);
4404 case CHR_EVENT_MUX_OUT:
4405 if (mon->reset_seen) {
4406 if (atomic_mb_read(&mon->suspend_cnt) == 0) {
4407 monitor_printf(mon, "\n");
4410 monitor_suspend(mon);
4412 atomic_inc(&mon->suspend_cnt);
4414 qemu_mutex_lock(&mon->mon_lock);
4416 qemu_mutex_unlock(&mon->mon_lock);
4419 case CHR_EVENT_OPENED:
4420 monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4421 "information\n", QEMU_VERSION);
4422 if (!mon->mux_out) {
4423 readline_restart(mon->rs);
4424 readline_show_prompt(mon->rs);
4426 mon->reset_seen = 1;
4430 case CHR_EVENT_CLOSED:
4432 monitor_fdsets_cleanup();
4438 compare_mon_cmd(const void *a, const void *b)
4440 return strcmp(((const mon_cmd_t *)a)->name,
4441 ((const mon_cmd_t *)b)->name);
4444 static void sortcmdlist(void)
4447 int elem_size = sizeof(mon_cmd_t);
4449 array_num = sizeof(mon_cmds)/elem_size-1;
4450 qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
4452 array_num = sizeof(info_cmds)/elem_size-1;
4453 qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
4456 static GMainContext *monitor_get_io_context(void)
4458 return iothread_get_g_main_context(mon_iothread);
4461 static AioContext *monitor_get_aio_context(void)
4463 return iothread_get_aio_context(mon_iothread);
4466 static void monitor_iothread_init(void)
4468 mon_iothread = iothread_create("mon_iothread", &error_abort);
4471 void monitor_init_globals(void)
4473 monitor_init_qmp_commands();
4474 monitor_qapi_event_init();
4476 qemu_mutex_init(&monitor_lock);
4477 qemu_mutex_init(&mon_fdsets_lock);
4480 * The dispatcher BH must run in the main loop thread, since we
4481 * have commands assuming that context. It would be nice to get
4482 * rid of those assumptions.
4484 qmp_dispatcher_bh = aio_bh_new(iohandler_get_aio_context(),
4485 monitor_qmp_bh_dispatcher,
4489 /* These functions just adapt the readline interface in a typesafe way. We
4490 * could cast function pointers but that discards compiler checks.
4492 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
4493 const char *fmt, ...)
4497 monitor_vprintf(opaque, fmt, ap);
4501 static void monitor_readline_flush(void *opaque)
4503 monitor_flush(opaque);
4507 * Print to current monitor if we have one, else to stream.
4508 * TODO should return int, so callers can calculate width, but that
4509 * requires surgery to monitor_vprintf(). Left for another day.
4511 void monitor_vfprintf(FILE *stream, const char *fmt, va_list ap)
4513 if (cur_mon && !monitor_cur_is_qmp()) {
4514 monitor_vprintf(cur_mon, fmt, ap);
4516 vfprintf(stream, fmt, ap);
4521 * Print to current monitor if we have one, else to stderr.
4522 * TODO should return int, so callers can calculate width, but that
4523 * requires surgery to monitor_vprintf(). Left for another day.
4525 void error_vprintf(const char *fmt, va_list ap)
4527 monitor_vfprintf(stderr, fmt, ap);
4530 void error_vprintf_unless_qmp(const char *fmt, va_list ap)
4532 if (cur_mon && !monitor_cur_is_qmp()) {
4533 monitor_vprintf(cur_mon, fmt, ap);
4534 } else if (!cur_mon) {
4535 vfprintf(stderr, fmt, ap);
4539 static void monitor_list_append(Monitor *mon)
4541 qemu_mutex_lock(&monitor_lock);
4542 QTAILQ_INSERT_HEAD(&mon_list, mon, entry);
4543 qemu_mutex_unlock(&monitor_lock);
4546 static void monitor_qmp_setup_handlers_bh(void *opaque)
4548 Monitor *mon = opaque;
4549 GMainContext *context;
4551 assert(mon->use_io_thread);
4552 context = monitor_get_io_context();
4554 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read,
4555 monitor_qmp_event, NULL, mon, context, true);
4556 monitor_list_append(mon);
4559 void monitor_init(Chardev *chr, int flags)
4561 Monitor *mon = g_malloc(sizeof(*mon));
4562 bool use_readline = flags & MONITOR_USE_READLINE;
4563 bool use_oob = flags & MONITOR_USE_OOB;
4566 if (CHARDEV_IS_MUX(chr)) {
4567 error_report("Monitor out-of-band is not supported with "
4568 "MUX typed chardev backend");
4572 error_report("Monitor out-of-band is only supported by QMP");
4577 monitor_data_init(mon, false, use_oob);
4579 qemu_chr_fe_init(&mon->chr, chr, &error_abort);
4582 mon->rs = readline_init(monitor_readline_printf,
4583 monitor_readline_flush,
4585 monitor_find_completion);
4586 monitor_read_command(mon, 0);
4589 if (monitor_is_qmp(mon)) {
4590 qemu_chr_fe_set_echo(&mon->chr, true);
4591 json_message_parser_init(&mon->qmp.parser, handle_qmp_command,
4593 if (mon->use_io_thread) {
4595 * Make sure the old iowatch is gone. It's possible when
4596 * e.g. the chardev is in client mode, with wait=on.
4598 remove_fd_in_watch(chr);
4600 * We can't call qemu_chr_fe_set_handlers() directly here
4601 * since chardev might be running in the monitor I/O
4602 * thread. Schedule a bottom half.
4604 aio_bh_schedule_oneshot(monitor_get_aio_context(),
4605 monitor_qmp_setup_handlers_bh, mon);
4606 /* The bottom half will add @mon to @mon_list */
4609 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read,
4610 monitor_qmp_read, monitor_qmp_event,
4611 NULL, mon, NULL, true);
4614 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read,
4615 monitor_event, NULL, mon, NULL, true);
4618 monitor_list_append(mon);
4621 void monitor_cleanup(void)
4623 Monitor *mon, *next;
4626 * We need to explicitly stop the I/O thread (but not destroy it),
4627 * clean up the monitor resources, then destroy the I/O thread since
4628 * we need to unregister from chardev below in
4629 * monitor_data_destroy(), and chardev is not thread-safe yet
4632 iothread_stop(mon_iothread);
4635 /* Flush output buffers and destroy monitors */
4636 qemu_mutex_lock(&monitor_lock);
4637 QTAILQ_FOREACH_SAFE(mon, &mon_list, entry, next) {
4638 QTAILQ_REMOVE(&mon_list, mon, entry);
4640 monitor_data_destroy(mon);
4643 qemu_mutex_unlock(&monitor_lock);
4645 /* QEMUBHs needs to be deleted before destroying the I/O thread */
4646 qemu_bh_delete(qmp_dispatcher_bh);
4647 qmp_dispatcher_bh = NULL;
4649 iothread_destroy(mon_iothread);
4650 mon_iothread = NULL;
4654 QemuOptsList qemu_mon_opts = {
4656 .implied_opt_name = "chardev",
4657 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4661 .type = QEMU_OPT_STRING,
4664 .type = QEMU_OPT_STRING,
4667 .type = QEMU_OPT_BOOL,
4670 .type = QEMU_OPT_BOOL,
4672 { /* end of list */ }
4677 void qmp_rtc_reset_reinjection(Error **errp)
4679 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4682 SevInfo *qmp_query_sev(Error **errp)
4684 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev");
4688 SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp)
4690 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-launch-measure");
4694 SevCapability *qmp_query_sev_capabilities(Error **errp)
4696 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-capabilities");
4701 #ifndef TARGET_S390X
4702 void qmp_dump_skeys(const char *filename, Error **errp)
4704 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4709 GICCapabilityList *qmp_query_gic_capabilities(Error **errp)
4711 error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities");
4716 HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
4718 MachineState *ms = MACHINE(qdev_get_machine());
4719 MachineClass *mc = MACHINE_GET_CLASS(ms);
4721 if (!mc->has_hotpluggable_cpus) {
4722 error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus");
4726 return machine_query_hotpluggable_cpus(ms);