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, monitor_destroyed. */
267 static QemuMutex monitor_lock;
268 static GHashTable *monitor_qapi_event_state;
269 static QTAILQ_HEAD(mon_list, Monitor) mon_list;
270 static bool monitor_destroyed;
272 /* Protects mon_fdsets */
273 static QemuMutex mon_fdsets_lock;
274 static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
276 static int mon_refcount;
278 static mon_cmd_t mon_cmds[];
279 static mon_cmd_t info_cmds[];
281 QmpCommandList qmp_commands, qmp_cap_negotiation_commands;
283 __thread Monitor *cur_mon;
285 static void monitor_command_cb(void *opaque, const char *cmdline,
286 void *readline_opaque);
289 * Is @mon a QMP monitor?
291 static inline bool monitor_is_qmp(const Monitor *mon)
293 return (mon->flags & MONITOR_USE_CONTROL);
297 * Is @mon is using readline?
298 * Note: not all HMP monitors use readline, e.g., gdbserver has a
299 * non-interactive HMP monitor, so readline is not used there.
301 static inline bool monitor_uses_readline(const Monitor *mon)
303 return mon->flags & MONITOR_USE_READLINE;
306 static inline bool monitor_is_hmp_non_interactive(const Monitor *mon)
308 return !monitor_is_qmp(mon) && !monitor_uses_readline(mon);
312 * Return the clock to use for recording an event's time.
313 * It's QEMU_CLOCK_REALTIME, except for qtests it's
314 * QEMU_CLOCK_VIRTUAL, to support testing rate limits.
315 * Beware: result is invalid before configure_accelerator().
317 static inline QEMUClockType monitor_get_event_clock(void)
319 return qtest_enabled() ? QEMU_CLOCK_VIRTUAL : QEMU_CLOCK_REALTIME;
323 * Is the current monitor, if any, a QMP monitor?
325 bool monitor_cur_is_qmp(void)
327 return cur_mon && monitor_is_qmp(cur_mon);
330 void monitor_read_command(Monitor *mon, int show_prompt)
335 readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
337 readline_show_prompt(mon->rs);
340 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
344 readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
345 /* prompt is printed on return from the command handler */
348 monitor_printf(mon, "terminal does not support password prompting\n");
353 static void qmp_request_free(QMPRequest *req)
355 qobject_unref(req->id);
356 qobject_unref(req->req);
357 error_free(req->err);
361 /* Caller must hold mon->qmp.qmp_queue_lock */
362 static void monitor_qmp_cleanup_req_queue_locked(Monitor *mon)
364 while (!g_queue_is_empty(mon->qmp.qmp_requests)) {
365 qmp_request_free(g_queue_pop_head(mon->qmp.qmp_requests));
369 static void monitor_qmp_cleanup_queues(Monitor *mon)
371 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
372 monitor_qmp_cleanup_req_queue_locked(mon);
373 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
377 static void monitor_flush_locked(Monitor *mon);
379 static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
382 Monitor *mon = opaque;
384 qemu_mutex_lock(&mon->mon_lock);
386 monitor_flush_locked(mon);
387 qemu_mutex_unlock(&mon->mon_lock);
391 /* Caller must hold mon->mon_lock */
392 static void monitor_flush_locked(Monitor *mon)
398 if (mon->skip_flush) {
402 buf = qstring_get_str(mon->outbuf);
403 len = qstring_get_length(mon->outbuf);
405 if (len && !mon->mux_out) {
406 rc = qemu_chr_fe_write(&mon->chr, (const uint8_t *) buf, len);
407 if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
408 /* all flushed or error */
409 qobject_unref(mon->outbuf);
410 mon->outbuf = qstring_new();
415 QString *tmp = qstring_from_str(buf + rc);
416 qobject_unref(mon->outbuf);
419 if (mon->out_watch == 0) {
421 qemu_chr_fe_add_watch(&mon->chr, G_IO_OUT | G_IO_HUP,
422 monitor_unblocked, mon);
427 void monitor_flush(Monitor *mon)
429 qemu_mutex_lock(&mon->mon_lock);
430 monitor_flush_locked(mon);
431 qemu_mutex_unlock(&mon->mon_lock);
434 /* flush at every end of line */
435 static void monitor_puts(Monitor *mon, const char *str)
439 qemu_mutex_lock(&mon->mon_lock);
445 qstring_append_chr(mon->outbuf, '\r');
447 qstring_append_chr(mon->outbuf, c);
449 monitor_flush_locked(mon);
452 qemu_mutex_unlock(&mon->mon_lock);
455 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
462 if (monitor_is_qmp(mon)) {
466 buf = g_strdup_vprintf(fmt, ap);
467 monitor_puts(mon, buf);
471 void monitor_printf(Monitor *mon, const char *fmt, ...)
475 monitor_vprintf(mon, fmt, ap);
479 int monitor_fprintf(FILE *stream, const char *fmt, ...)
483 monitor_vprintf((Monitor *)stream, fmt, ap);
488 static void qmp_send_response(Monitor *mon, const QDict *rsp)
490 const QObject *data = QOBJECT(rsp);
493 json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
494 qobject_to_json(data);
495 assert(json != NULL);
497 qstring_append_chr(json, '\n');
498 monitor_puts(mon, qstring_get_str(json));
503 static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = {
504 /* Limit guest-triggerable events to 1 per second */
505 [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
506 [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
507 [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
508 [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
509 [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
510 [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
514 * Broadcast an event to all monitors.
515 * @qdict is the event object. Its member "event" must match @event.
516 * Caller must hold monitor_lock.
518 static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
522 trace_monitor_protocol_event_emit(event, qdict);
523 QTAILQ_FOREACH(mon, &mon_list, entry) {
524 if (monitor_is_qmp(mon)
525 && mon->qmp.commands != &qmp_cap_negotiation_commands) {
526 qmp_send_response(mon, qdict);
531 static void monitor_qapi_event_handler(void *opaque);
534 * Queue a new event for emission to Monitor instances,
535 * applying any rate limiting if required.
538 monitor_qapi_event_queue_no_reenter(QAPIEvent event, QDict *qdict)
540 MonitorQAPIEventConf *evconf;
541 MonitorQAPIEventState *evstate;
543 assert(event < QAPI_EVENT__MAX);
544 evconf = &monitor_qapi_event_conf[event];
545 trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
547 qemu_mutex_lock(&monitor_lock);
550 /* Unthrottled event */
551 monitor_qapi_event_emit(event, qdict);
553 QDict *data = qobject_to(QDict, qdict_get(qdict, "data"));
554 MonitorQAPIEventState key = { .event = event, .data = data };
556 evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
557 assert(!evstate || timer_pending(evstate->timer));
561 * Timer is pending for (at least) evconf->rate ns after
562 * last send. Store event for sending when timer fires,
563 * replacing a prior stored event if any.
565 qobject_unref(evstate->qdict);
566 evstate->qdict = qobject_ref(qdict);
569 * Last send was (at least) evconf->rate ns ago.
570 * Send immediately, and arm the timer to call
571 * monitor_qapi_event_handler() in evconf->rate ns. Any
572 * events arriving before then will be delayed until then.
574 int64_t now = qemu_clock_get_ns(monitor_get_event_clock());
576 monitor_qapi_event_emit(event, qdict);
578 evstate = g_new(MonitorQAPIEventState, 1);
579 evstate->event = event;
580 evstate->data = qobject_ref(data);
581 evstate->qdict = NULL;
582 evstate->timer = timer_new_ns(monitor_get_event_clock(),
583 monitor_qapi_event_handler,
585 g_hash_table_add(monitor_qapi_event_state, evstate);
586 timer_mod_ns(evstate->timer, now + evconf->rate);
590 qemu_mutex_unlock(&monitor_lock);
594 monitor_qapi_event_queue(QAPIEvent event, QDict *qdict)
597 * monitor_qapi_event_queue_no_reenter() is not reentrant: it
598 * would deadlock on monitor_lock. Work around by queueing
599 * events in thread-local storage.
600 * TODO: remove this, make it re-enter safe.
602 typedef struct MonitorQapiEvent {
605 QSIMPLEQ_ENTRY(MonitorQapiEvent) entry;
607 static __thread QSIMPLEQ_HEAD(, MonitorQapiEvent) event_queue;
608 static __thread bool reentered;
609 MonitorQapiEvent *ev;
612 QSIMPLEQ_INIT(&event_queue);
615 ev = g_new(MonitorQapiEvent, 1);
616 ev->qdict = qobject_ref(qdict);
618 QSIMPLEQ_INSERT_TAIL(&event_queue, ev, entry);
625 while ((ev = QSIMPLEQ_FIRST(&event_queue)) != NULL) {
626 QSIMPLEQ_REMOVE_HEAD(&event_queue, entry);
627 monitor_qapi_event_queue_no_reenter(ev->event, ev->qdict);
628 qobject_unref(ev->qdict);
636 * This function runs evconf->rate ns after sending a throttled
638 * If another event has since been stored, send it.
640 static void monitor_qapi_event_handler(void *opaque)
642 MonitorQAPIEventState *evstate = opaque;
643 MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
645 trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
646 qemu_mutex_lock(&monitor_lock);
648 if (evstate->qdict) {
649 int64_t now = qemu_clock_get_ns(monitor_get_event_clock());
651 monitor_qapi_event_emit(evstate->event, evstate->qdict);
652 qobject_unref(evstate->qdict);
653 evstate->qdict = NULL;
654 timer_mod_ns(evstate->timer, now + evconf->rate);
656 g_hash_table_remove(monitor_qapi_event_state, evstate);
657 qobject_unref(evstate->data);
658 timer_free(evstate->timer);
662 qemu_mutex_unlock(&monitor_lock);
665 static unsigned int qapi_event_throttle_hash(const void *key)
667 const MonitorQAPIEventState *evstate = key;
668 unsigned int hash = evstate->event * 255;
670 if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
671 hash += g_str_hash(qdict_get_str(evstate->data, "id"));
674 if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
675 hash += g_str_hash(qdict_get_str(evstate->data, "node-name"));
681 static gboolean qapi_event_throttle_equal(const void *a, const void *b)
683 const MonitorQAPIEventState *eva = a;
684 const MonitorQAPIEventState *evb = b;
686 if (eva->event != evb->event) {
690 if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
691 return !strcmp(qdict_get_str(eva->data, "id"),
692 qdict_get_str(evb->data, "id"));
695 if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
696 return !strcmp(qdict_get_str(eva->data, "node-name"),
697 qdict_get_str(evb->data, "node-name"));
703 static void monitor_qapi_event_init(void)
705 monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
706 qapi_event_throttle_equal);
707 qmp_event_set_func_emit(monitor_qapi_event_queue);
710 static void handle_hmp_command(Monitor *mon, const char *cmdline);
712 static void monitor_iothread_init(void);
714 static void monitor_data_init(Monitor *mon, bool skip_flush,
717 if (use_io_thread && !mon_iothread) {
718 monitor_iothread_init();
720 memset(mon, 0, sizeof(Monitor));
721 qemu_mutex_init(&mon->mon_lock);
722 qemu_mutex_init(&mon->qmp.qmp_queue_lock);
723 mon->outbuf = qstring_new();
724 /* Use *mon_cmds by default. */
725 mon->cmd_table = mon_cmds;
726 mon->skip_flush = skip_flush;
727 mon->use_io_thread = use_io_thread;
728 mon->qmp.qmp_requests = g_queue_new();
731 static void monitor_data_destroy(Monitor *mon)
733 g_free(mon->mon_cpu_path);
734 qemu_chr_fe_deinit(&mon->chr, false);
735 if (monitor_is_qmp(mon)) {
736 json_message_parser_destroy(&mon->qmp.parser);
738 readline_free(mon->rs);
739 qobject_unref(mon->outbuf);
740 qemu_mutex_destroy(&mon->mon_lock);
741 qemu_mutex_destroy(&mon->qmp.qmp_queue_lock);
742 monitor_qmp_cleanup_req_queue_locked(mon);
743 g_queue_free(mon->qmp.qmp_requests);
746 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
747 int64_t cpu_index, Error **errp)
750 Monitor *old_mon, hmp;
752 monitor_data_init(&hmp, true, false);
758 int ret = monitor_set_cpu(cpu_index);
761 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
767 handle_hmp_command(&hmp, command_line);
770 qemu_mutex_lock(&hmp.mon_lock);
771 if (qstring_get_length(hmp.outbuf) > 0) {
772 output = g_strdup(qstring_get_str(hmp.outbuf));
774 output = g_strdup("");
776 qemu_mutex_unlock(&hmp.mon_lock);
779 monitor_data_destroy(&hmp);
783 static int compare_cmd(const char *name, const char *list)
785 const char *p, *pstart;
791 p = qemu_strchrnul(p, '|');
792 if ((p - pstart) == len && !memcmp(pstart, name, len))
801 static int get_str(char *buf, int buf_size, const char **pp)
809 while (qemu_isspace(*p)) {
820 while (*p != '\0' && *p != '\"') {
836 printf("unsupported escape code: '\\%c'\n", c);
839 if ((q - buf) < buf_size - 1) {
843 if ((q - buf) < buf_size - 1) {
850 printf("unterminated string\n");
855 while (*p != '\0' && !qemu_isspace(*p)) {
856 if ((q - buf) < buf_size - 1) {
869 static void free_cmdline_args(char **args, int nb_args)
873 assert(nb_args <= MAX_ARGS);
875 for (i = 0; i < nb_args; i++) {
882 * Parse the command line to get valid args.
883 * @cmdline: command line to be parsed.
884 * @pnb_args: location to store the number of args, must NOT be NULL.
885 * @args: location to store the args, which should be freed by caller, must
888 * Returns 0 on success, negative on failure.
890 * NOTE: this parser is an approximate form of the real command parser. Number
891 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
892 * return with failure.
894 static int parse_cmdline(const char *cmdline,
895 int *pnb_args, char **args)
904 while (qemu_isspace(*p)) {
910 if (nb_args >= MAX_ARGS) {
913 ret = get_str(buf, sizeof(buf), &p);
917 args[nb_args] = g_strdup(buf);
924 free_cmdline_args(args, nb_args);
929 * Can command @cmd be executed in preconfig state?
931 static bool cmd_can_preconfig(const mon_cmd_t *cmd)
937 return strchr(cmd->flags, 'p');
940 static void help_cmd_dump_one(Monitor *mon,
941 const mon_cmd_t *cmd,
947 if (runstate_check(RUN_STATE_PRECONFIG) && !cmd_can_preconfig(cmd)) {
951 for (i = 0; i < prefix_args_nb; i++) {
952 monitor_printf(mon, "%s ", prefix_args[i]);
954 monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
957 /* @args[@arg_index] is the valid command need to find in @cmds */
958 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
959 char **args, int nb_args, int arg_index)
961 const mon_cmd_t *cmd;
964 /* No valid arg need to compare with, dump all in *cmds */
965 if (arg_index >= nb_args) {
966 for (cmd = cmds; cmd->name != NULL; cmd++) {
967 help_cmd_dump_one(mon, cmd, args, arg_index);
972 /* Find one entry to dump */
973 for (cmd = cmds; cmd->name != NULL; cmd++) {
974 if (compare_cmd(args[arg_index], cmd->name) &&
975 ((!runstate_check(RUN_STATE_PRECONFIG) ||
976 cmd_can_preconfig(cmd)))) {
977 if (cmd->sub_table) {
978 /* continue with next arg */
979 help_cmd_dump(mon, cmd->sub_table,
980 args, nb_args, arg_index + 1);
982 help_cmd_dump_one(mon, cmd, args, arg_index);
988 /* Command not found */
989 monitor_printf(mon, "unknown command: '");
990 for (i = 0; i <= arg_index; i++) {
991 monitor_printf(mon, "%s%s", args[i], i == arg_index ? "'\n" : " ");
995 static void help_cmd(Monitor *mon, const char *name)
997 char *args[MAX_ARGS];
1000 /* 1. parse user input */
1002 /* special case for log, directly dump and return */
1003 if (!strcmp(name, "log")) {
1004 const QEMULogItem *item;
1005 monitor_printf(mon, "Log items (comma separated):\n");
1006 monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
1007 for (item = qemu_log_items; item->mask != 0; item++) {
1008 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
1013 if (parse_cmdline(name, &nb_args, args) < 0) {
1018 /* 2. dump the contents according to parsed args */
1019 help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
1021 free_cmdline_args(args, nb_args);
1024 static void do_help_cmd(Monitor *mon, const QDict *qdict)
1026 help_cmd(mon, qdict_get_try_str(qdict, "name"));
1029 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
1031 const char *tp_name = qdict_get_str(qdict, "name");
1032 bool new_state = qdict_get_bool(qdict, "option");
1033 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1034 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1035 Error *local_err = NULL;
1038 monitor_printf(mon, "argument vcpu must be positive");
1042 qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err);
1044 error_report_err(local_err);
1048 #ifdef CONFIG_TRACE_SIMPLE
1049 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
1051 const char *op = qdict_get_try_str(qdict, "op");
1052 const char *arg = qdict_get_try_str(qdict, "arg");
1055 st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
1056 } else if (!strcmp(op, "on")) {
1057 st_set_trace_file_enabled(true);
1058 } else if (!strcmp(op, "off")) {
1059 st_set_trace_file_enabled(false);
1060 } else if (!strcmp(op, "flush")) {
1061 st_flush_trace_buffer();
1062 } else if (!strcmp(op, "set")) {
1064 st_set_trace_file(arg);
1067 monitor_printf(mon, "unexpected argument \"%s\"\n", op);
1068 help_cmd(mon, "trace-file");
1073 static void hmp_info_help(Monitor *mon, const QDict *qdict)
1075 help_cmd(mon, "info");
1078 static void query_commands_cb(QmpCommand *cmd, void *opaque)
1080 CommandInfoList *info, **list = opaque;
1082 if (!cmd->enabled) {
1086 info = g_malloc0(sizeof(*info));
1087 info->value = g_malloc0(sizeof(*info->value));
1088 info->value->name = g_strdup(cmd->name);
1093 CommandInfoList *qmp_query_commands(Error **errp)
1095 CommandInfoList *list = NULL;
1097 qmp_for_each_command(cur_mon->qmp.commands, query_commands_cb, &list);
1102 EventInfoList *qmp_query_events(Error **errp)
1104 EventInfoList *info, *ev_list = NULL;
1107 for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
1108 const char *event_name = QAPIEvent_str(e);
1109 assert(event_name != NULL);
1110 info = g_malloc0(sizeof(*info));
1111 info->value = g_malloc0(sizeof(*info->value));
1112 info->value->name = g_strdup(event_name);
1114 info->next = ev_list;
1122 * Minor hack: generated marshalling suppressed for this command
1123 * ('gen': false in the schema) so we can parse the JSON string
1124 * directly into QObject instead of first parsing it with
1125 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
1126 * to QObject with generated output marshallers, every time. Instead,
1127 * we do it in test-qobject-input-visitor.c, just to make sure
1128 * qapi-gen.py's output actually conforms to the schema.
1130 static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
1133 *ret_data = qobject_from_qlit(&qmp_schema_qlit);
1137 * We used to define commands in qmp-commands.hx in addition to the
1138 * QAPI schema. This permitted defining some of them only in certain
1139 * configurations. query-commands has always reflected that (good,
1140 * because it lets QMP clients figure out what's actually available),
1141 * while query-qmp-schema never did (not so good). This function is a
1142 * hack to keep the configuration-specific commands defined exactly as
1143 * before, even though qmp-commands.hx is gone.
1145 * FIXME Educate the QAPI schema on configuration-specific commands,
1146 * and drop this hack.
1148 static void qmp_unregister_commands_hack(void)
1150 #ifndef CONFIG_REPLICATION
1151 qmp_unregister_command(&qmp_commands, "xen-set-replication");
1152 qmp_unregister_command(&qmp_commands, "query-xen-replication-status");
1153 qmp_unregister_command(&qmp_commands, "xen-colo-do-checkpoint");
1156 qmp_unregister_command(&qmp_commands, "rtc-reset-reinjection");
1157 qmp_unregister_command(&qmp_commands, "query-sev");
1158 qmp_unregister_command(&qmp_commands, "query-sev-launch-measure");
1159 qmp_unregister_command(&qmp_commands, "query-sev-capabilities");
1161 #ifndef TARGET_S390X
1162 qmp_unregister_command(&qmp_commands, "dump-skeys");
1165 qmp_unregister_command(&qmp_commands, "query-gic-capabilities");
1167 #if !defined(TARGET_S390X) && !defined(TARGET_I386)
1168 qmp_unregister_command(&qmp_commands, "query-cpu-model-expansion");
1170 #if !defined(TARGET_S390X)
1171 qmp_unregister_command(&qmp_commands, "query-cpu-model-baseline");
1172 qmp_unregister_command(&qmp_commands, "query-cpu-model-comparison");
1174 #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
1175 && !defined(TARGET_S390X)
1176 qmp_unregister_command(&qmp_commands, "query-cpu-definitions");
1180 static void monitor_init_qmp_commands(void)
1183 * Two command lists:
1184 * - qmp_commands contains all QMP commands
1185 * - qmp_cap_negotiation_commands contains just
1186 * "qmp_capabilities", to enforce capability negotiation
1189 qmp_init_marshal(&qmp_commands);
1191 qmp_register_command(&qmp_commands, "query-qmp-schema",
1192 qmp_query_qmp_schema, QCO_ALLOW_PRECONFIG);
1193 qmp_register_command(&qmp_commands, "device_add", qmp_device_add,
1195 qmp_register_command(&qmp_commands, "netdev_add", qmp_netdev_add,
1198 qmp_unregister_commands_hack();
1200 QTAILQ_INIT(&qmp_cap_negotiation_commands);
1201 qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
1202 qmp_marshal_qmp_capabilities, QCO_ALLOW_PRECONFIG);
1205 static bool qmp_oob_enabled(Monitor *mon)
1207 return mon->qmp.capab[QMP_CAPABILITY_OOB];
1210 static void monitor_qmp_caps_reset(Monitor *mon)
1212 memset(mon->qmp.capab_offered, 0, sizeof(mon->qmp.capab_offered));
1213 memset(mon->qmp.capab, 0, sizeof(mon->qmp.capab));
1214 mon->qmp.capab_offered[QMP_CAPABILITY_OOB] = mon->use_io_thread;
1218 * Accept QMP capabilities in @list for @mon.
1219 * On success, set mon->qmp.capab[], and return true.
1220 * On error, set @errp, and return false.
1222 static bool qmp_caps_accept(Monitor *mon, QMPCapabilityList *list,
1225 GString *unavailable = NULL;
1226 bool capab[QMP_CAPABILITY__MAX];
1228 memset(capab, 0, sizeof(capab));
1230 for (; list; list = list->next) {
1231 if (!mon->qmp.capab_offered[list->value]) {
1233 unavailable = g_string_new(QMPCapability_str(list->value));
1235 g_string_append_printf(unavailable, ", %s",
1236 QMPCapability_str(list->value));
1239 capab[list->value] = true;
1243 error_setg(errp, "Capability %s not available", unavailable->str);
1244 g_string_free(unavailable, true);
1248 memcpy(mon->qmp.capab, capab, sizeof(capab));
1252 void qmp_qmp_capabilities(bool has_enable, QMPCapabilityList *enable,
1255 if (cur_mon->qmp.commands == &qmp_commands) {
1256 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
1257 "Capabilities negotiation is already complete, command "
1262 if (!qmp_caps_accept(cur_mon, enable, errp)) {
1266 cur_mon->qmp.commands = &qmp_commands;
1269 /* Set the current CPU defined by the user. Callers must hold BQL. */
1270 int monitor_set_cpu(int cpu_index)
1274 cpu = qemu_get_cpu(cpu_index);
1278 g_free(cur_mon->mon_cpu_path);
1279 cur_mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu));
1283 /* Callers must hold BQL. */
1284 static CPUState *mon_get_cpu_sync(bool synchronize)
1288 if (cur_mon->mon_cpu_path) {
1289 cpu = (CPUState *) object_resolve_path_type(cur_mon->mon_cpu_path,
1292 g_free(cur_mon->mon_cpu_path);
1293 cur_mon->mon_cpu_path = NULL;
1296 if (!cur_mon->mon_cpu_path) {
1300 monitor_set_cpu(first_cpu->cpu_index);
1304 cpu_synchronize_state(cpu);
1309 CPUState *mon_get_cpu(void)
1311 return mon_get_cpu_sync(true);
1314 CPUArchState *mon_get_cpu_env(void)
1316 CPUState *cs = mon_get_cpu();
1318 return cs ? cs->env_ptr : NULL;
1321 int monitor_get_cpu_index(void)
1323 CPUState *cs = mon_get_cpu_sync(false);
1325 return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX;
1328 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
1330 bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false);
1335 monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index);
1336 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1342 monitor_printf(mon, "No CPU available\n");
1346 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1351 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
1353 if (!tcg_enabled()) {
1354 error_report("JIT information is only available with accel=tcg");
1358 dump_exec_info((FILE *)mon, monitor_fprintf);
1359 dump_drift_info((FILE *)mon, monitor_fprintf);
1362 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
1364 dump_opcount_info((FILE *)mon, monitor_fprintf);
1368 static void hmp_info_sync_profile(Monitor *mon, const QDict *qdict)
1370 int64_t max = qdict_get_try_int(qdict, "max", 10);
1371 bool mean = qdict_get_try_bool(qdict, "mean", false);
1372 bool coalesce = !qdict_get_try_bool(qdict, "no_coalesce", false);
1373 enum QSPSortBy sort_by;
1375 sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME;
1376 qsp_report((FILE *)mon, monitor_fprintf, max, sort_by, coalesce);
1379 static void hmp_info_history(Monitor *mon, const QDict *qdict)
1388 str = readline_get_history(mon->rs, i);
1391 monitor_printf(mon, "%d: '%s'\n", i, str);
1396 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
1398 CPUState *cs = mon_get_cpu();
1401 monitor_printf(mon, "No CPU available\n");
1404 cpu_dump_statistics(cs, (FILE *)mon, &monitor_fprintf, 0);
1407 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
1409 const char *name = qdict_get_try_str(qdict, "name");
1410 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1411 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1412 TraceEventInfoList *events;
1413 TraceEventInfoList *elem;
1414 Error *local_err = NULL;
1420 monitor_printf(mon, "argument vcpu must be positive");
1424 events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err);
1426 error_report_err(local_err);
1430 for (elem = events; elem != NULL; elem = elem->next) {
1431 monitor_printf(mon, "%s : state %u\n",
1433 elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
1435 qapi_free_TraceEventInfoList(events);
1438 void qmp_client_migrate_info(const char *protocol, const char *hostname,
1439 bool has_port, int64_t port,
1440 bool has_tls_port, int64_t tls_port,
1441 bool has_cert_subject, const char *cert_subject,
1444 if (strcmp(protocol, "spice") == 0) {
1445 if (!qemu_using_spice(errp)) {
1449 if (!has_port && !has_tls_port) {
1450 error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
1454 if (qemu_spice_migrate_info(hostname,
1455 has_port ? port : -1,
1456 has_tls_port ? tls_port : -1,
1458 error_setg(errp, QERR_UNDEFINED_ERROR);
1464 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
1467 static void hmp_logfile(Monitor *mon, const QDict *qdict)
1471 qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
1473 error_report_err(err);
1477 static void hmp_log(Monitor *mon, const QDict *qdict)
1480 const char *items = qdict_get_str(qdict, "items");
1482 if (!strcmp(items, "none")) {
1485 mask = qemu_str_to_log_mask(items);
1487 help_cmd(mon, "log");
1494 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
1496 const char *option = qdict_get_try_str(qdict, "option");
1497 if (!option || !strcmp(option, "on")) {
1499 } else if (!strcmp(option, "off")) {
1502 monitor_printf(mon, "unexpected option %s\n", option);
1506 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
1508 const char *device = qdict_get_try_str(qdict, "device");
1510 device = "tcp::" DEFAULT_GDBSTUB_PORT;
1511 if (gdbserver_start(device) < 0) {
1512 monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1514 } else if (strcmp(device, "none") == 0) {
1515 monitor_printf(mon, "Disabled gdbserver\n");
1517 monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1522 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
1524 const char *action = qdict_get_str(qdict, "action");
1525 if (select_watchdog_action(action) == -1) {
1526 monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1530 static void monitor_printc(Monitor *mon, int c)
1532 monitor_printf(mon, "'");
1535 monitor_printf(mon, "\\'");
1538 monitor_printf(mon, "\\\\");
1541 monitor_printf(mon, "\\n");
1544 monitor_printf(mon, "\\r");
1547 if (c >= 32 && c <= 126) {
1548 monitor_printf(mon, "%c", c);
1550 monitor_printf(mon, "\\x%02x", c);
1554 monitor_printf(mon, "'");
1557 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1558 hwaddr addr, int is_physical)
1560 int l, line_size, i, max_digits, len;
1563 CPUState *cs = mon_get_cpu();
1565 if (!cs && (format == 'i' || !is_physical)) {
1566 monitor_printf(mon, "Can not dump without CPU\n");
1570 if (format == 'i') {
1571 monitor_disas(mon, cs, addr, count, is_physical);
1575 len = wsize * count;
1584 max_digits = DIV_ROUND_UP(wsize * 8, 3);
1588 max_digits = (wsize * 8) / 4;
1592 max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33);
1601 monitor_printf(mon, TARGET_FMT_plx ":", addr);
1603 monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1608 cpu_physical_memory_read(addr, buf, l);
1610 if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) {
1611 monitor_printf(mon, " Cannot access memory\n");
1620 v = ldub_p(buf + i);
1623 v = lduw_p(buf + i);
1626 v = (uint32_t)ldl_p(buf + i);
1632 monitor_printf(mon, " ");
1635 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1638 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1641 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1644 monitor_printf(mon, "%*" PRId64, max_digits, v);
1647 monitor_printc(mon, v);
1652 monitor_printf(mon, "\n");
1658 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
1660 int count = qdict_get_int(qdict, "count");
1661 int format = qdict_get_int(qdict, "format");
1662 int size = qdict_get_int(qdict, "size");
1663 target_long addr = qdict_get_int(qdict, "addr");
1665 memory_dump(mon, count, format, size, addr, 0);
1668 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
1670 int count = qdict_get_int(qdict, "count");
1671 int format = qdict_get_int(qdict, "format");
1672 int size = qdict_get_int(qdict, "size");
1673 hwaddr addr = qdict_get_int(qdict, "addr");
1675 memory_dump(mon, count, format, size, addr, 1);
1678 static void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, Error **errp)
1680 MemoryRegionSection mrs = memory_region_find(get_system_memory(),
1684 error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr);
1688 if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) {
1689 error_setg(errp, "Memory at address 0x%" HWADDR_PRIx "is not RAM", addr);
1690 memory_region_unref(mrs.mr);
1695 return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region);
1698 static void hmp_gpa2hva(Monitor *mon, const QDict *qdict)
1700 hwaddr addr = qdict_get_int(qdict, "addr");
1701 Error *local_err = NULL;
1702 MemoryRegion *mr = NULL;
1705 ptr = gpa2hva(&mr, addr, &local_err);
1707 error_report_err(local_err);
1711 monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx
1713 addr, mr->name, ptr);
1715 memory_region_unref(mr);
1719 static uint64_t vtop(void *ptr, Error **errp)
1723 uintptr_t addr = (uintptr_t) ptr;
1724 uintptr_t pagesize = getpagesize();
1725 off_t offset = addr / pagesize * sizeof(pinfo);
1728 fd = open("/proc/self/pagemap", O_RDONLY);
1730 error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap");
1734 /* Force copy-on-write if necessary. */
1735 atomic_add((uint8_t *)ptr, 0);
1737 if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) {
1738 error_setg_errno(errp, errno, "Cannot read pagemap");
1741 if ((pinfo & (1ull << 63)) == 0) {
1742 error_setg(errp, "Page not present");
1745 ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1));
1752 static void hmp_gpa2hpa(Monitor *mon, const QDict *qdict)
1754 hwaddr addr = qdict_get_int(qdict, "addr");
1755 Error *local_err = NULL;
1756 MemoryRegion *mr = NULL;
1760 ptr = gpa2hva(&mr, addr, &local_err);
1762 error_report_err(local_err);
1766 physaddr = vtop(ptr, &local_err);
1768 error_report_err(local_err);
1770 monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx
1771 " (%s) is 0x%" PRIx64 "\n",
1772 addr, mr->name, (uint64_t) physaddr);
1775 memory_region_unref(mr);
1779 static void do_print(Monitor *mon, const QDict *qdict)
1781 int format = qdict_get_int(qdict, "format");
1782 hwaddr val = qdict_get_int(qdict, "val");
1786 monitor_printf(mon, "%#" HWADDR_PRIo, val);
1789 monitor_printf(mon, "%#" HWADDR_PRIx, val);
1792 monitor_printf(mon, "%" HWADDR_PRIu, val);
1796 monitor_printf(mon, "%" HWADDR_PRId, val);
1799 monitor_printc(mon, val);
1802 monitor_printf(mon, "\n");
1805 static void hmp_sum(Monitor *mon, const QDict *qdict)
1809 uint32_t start = qdict_get_int(qdict, "start");
1810 uint32_t size = qdict_get_int(qdict, "size");
1813 for(addr = start; addr < (start + size); addr++) {
1814 uint8_t val = address_space_ldub(&address_space_memory, addr,
1815 MEMTXATTRS_UNSPECIFIED, NULL);
1816 /* BSD sum algorithm ('sum' Unix command) */
1817 sum = (sum >> 1) | (sum << 15);
1820 monitor_printf(mon, "%05d\n", sum);
1823 static int mouse_button_state;
1825 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
1827 int dx, dy, dz, button;
1828 const char *dx_str = qdict_get_str(qdict, "dx_str");
1829 const char *dy_str = qdict_get_str(qdict, "dy_str");
1830 const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1832 dx = strtol(dx_str, NULL, 0);
1833 dy = strtol(dy_str, NULL, 0);
1834 qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
1835 qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
1838 dz = strtol(dz_str, NULL, 0);
1840 button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
1841 qemu_input_queue_btn(NULL, button, true);
1842 qemu_input_event_sync();
1843 qemu_input_queue_btn(NULL, button, false);
1846 qemu_input_event_sync();
1849 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
1851 static uint32_t bmap[INPUT_BUTTON__MAX] = {
1852 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
1853 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
1854 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
1856 int button_state = qdict_get_int(qdict, "button_state");
1858 if (mouse_button_state == button_state) {
1861 qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
1862 qemu_input_event_sync();
1863 mouse_button_state = button_state;
1866 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
1868 int size = qdict_get_int(qdict, "size");
1869 int addr = qdict_get_int(qdict, "addr");
1870 int has_index = qdict_haskey(qdict, "index");
1875 int index = qdict_get_int(qdict, "index");
1876 cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1884 val = cpu_inb(addr);
1888 val = cpu_inw(addr);
1892 val = cpu_inl(addr);
1896 monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1897 suffix, addr, size * 2, val);
1900 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
1902 int size = qdict_get_int(qdict, "size");
1903 int addr = qdict_get_int(qdict, "addr");
1904 int val = qdict_get_int(qdict, "val");
1906 addr &= IOPORTS_MASK;
1911 cpu_outb(addr, val);
1914 cpu_outw(addr, val);
1917 cpu_outl(addr, val);
1922 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
1924 Error *local_err = NULL;
1925 const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1927 qemu_boot_set(bootdevice, &local_err);
1929 error_report_err(local_err);
1931 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1935 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1937 bool flatview = qdict_get_try_bool(qdict, "flatview", false);
1938 bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
1939 bool owner = qdict_get_try_bool(qdict, "owner", false);
1941 mtree_info((fprintf_function)monitor_printf, mon, flatview, dispatch_tree,
1945 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1948 NumaNodeMem *node_mem;
1949 CpuInfoList *cpu_list, *cpu;
1951 cpu_list = qmp_query_cpus(&error_abort);
1952 node_mem = g_new0(NumaNodeMem, nb_numa_nodes);
1954 query_numa_node_mem(node_mem);
1955 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1956 for (i = 0; i < nb_numa_nodes; i++) {
1957 monitor_printf(mon, "node %d cpus:", i);
1958 for (cpu = cpu_list; cpu; cpu = cpu->next) {
1959 if (cpu->value->has_props && cpu->value->props->has_node_id &&
1960 cpu->value->props->node_id == i) {
1961 monitor_printf(mon, " %" PRIi64, cpu->value->CPU);
1964 monitor_printf(mon, "\n");
1965 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1966 node_mem[i].node_mem >> 20);
1967 monitor_printf(mon, "node %d plugged: %" PRId64 " MB\n", i,
1968 node_mem[i].node_plugged_mem >> 20);
1970 qapi_free_CpuInfoList(cpu_list);
1974 #ifdef CONFIG_PROFILER
1978 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1980 static int64_t last_cpu_exec_time;
1981 int64_t cpu_exec_time;
1984 cpu_exec_time = tcg_cpu_exec_time();
1985 delta = cpu_exec_time - last_cpu_exec_time;
1987 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
1988 dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
1989 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
1990 delta, delta / (double)NANOSECONDS_PER_SECOND);
1991 last_cpu_exec_time = cpu_exec_time;
1995 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1997 monitor_printf(mon, "Internal profiler not compiled\n");
2001 /* Capture support */
2002 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2004 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
2009 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2010 monitor_printf(mon, "[%d]: ", i);
2011 s->ops.info (s->opaque);
2015 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
2018 int n = qdict_get_int(qdict, "n");
2021 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2023 s->ops.destroy (s->opaque);
2024 QLIST_REMOVE (s, entries);
2031 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
2033 const char *path = qdict_get_str(qdict, "path");
2034 int has_freq = qdict_haskey(qdict, "freq");
2035 int freq = qdict_get_try_int(qdict, "freq", -1);
2036 int has_bits = qdict_haskey(qdict, "bits");
2037 int bits = qdict_get_try_int(qdict, "bits", -1);
2038 int has_channels = qdict_haskey(qdict, "nchannels");
2039 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2042 s = g_malloc0 (sizeof (*s));
2044 freq = has_freq ? freq : 44100;
2045 bits = has_bits ? bits : 16;
2046 nchannels = has_channels ? nchannels : 2;
2048 if (wav_start_capture (s, path, freq, bits, nchannels)) {
2049 monitor_printf(mon, "Failed to add wave capture\n");
2053 QLIST_INSERT_HEAD (&capture_head, s, entries);
2056 static qemu_acl *find_acl(Monitor *mon, const char *name)
2058 qemu_acl *acl = qemu_acl_find(name);
2061 monitor_printf(mon, "acl: unknown list '%s'\n", name);
2066 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
2068 const char *aclname = qdict_get_str(qdict, "aclname");
2069 qemu_acl *acl = find_acl(mon, aclname);
2070 qemu_acl_entry *entry;
2074 monitor_printf(mon, "policy: %s\n",
2075 acl->defaultDeny ? "deny" : "allow");
2076 QTAILQ_FOREACH(entry, &acl->entries, next) {
2078 monitor_printf(mon, "%d: %s %s\n", i,
2079 entry->deny ? "deny" : "allow", entry->match);
2084 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
2086 const char *aclname = qdict_get_str(qdict, "aclname");
2087 qemu_acl *acl = find_acl(mon, aclname);
2090 qemu_acl_reset(acl);
2091 monitor_printf(mon, "acl: removed all rules\n");
2095 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
2097 const char *aclname = qdict_get_str(qdict, "aclname");
2098 const char *policy = qdict_get_str(qdict, "policy");
2099 qemu_acl *acl = find_acl(mon, aclname);
2102 if (strcmp(policy, "allow") == 0) {
2103 acl->defaultDeny = 0;
2104 monitor_printf(mon, "acl: policy set to 'allow'\n");
2105 } else if (strcmp(policy, "deny") == 0) {
2106 acl->defaultDeny = 1;
2107 monitor_printf(mon, "acl: policy set to 'deny'\n");
2109 monitor_printf(mon, "acl: unknown policy '%s', "
2110 "expected 'deny' or 'allow'\n", policy);
2115 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
2117 const char *aclname = qdict_get_str(qdict, "aclname");
2118 const char *match = qdict_get_str(qdict, "match");
2119 const char *policy = qdict_get_str(qdict, "policy");
2120 int has_index = qdict_haskey(qdict, "index");
2121 int index = qdict_get_try_int(qdict, "index", -1);
2122 qemu_acl *acl = find_acl(mon, aclname);
2126 if (strcmp(policy, "allow") == 0) {
2128 } else if (strcmp(policy, "deny") == 0) {
2131 monitor_printf(mon, "acl: unknown policy '%s', "
2132 "expected 'deny' or 'allow'\n", policy);
2136 ret = qemu_acl_insert(acl, deny, match, index);
2138 ret = qemu_acl_append(acl, deny, match);
2140 monitor_printf(mon, "acl: unable to add acl entry\n");
2142 monitor_printf(mon, "acl: added rule at position %d\n", ret);
2146 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
2148 const char *aclname = qdict_get_str(qdict, "aclname");
2149 const char *match = qdict_get_str(qdict, "match");
2150 qemu_acl *acl = find_acl(mon, aclname);
2154 ret = qemu_acl_remove(acl, match);
2156 monitor_printf(mon, "acl: no matching acl entry\n");
2158 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2162 void qmp_getfd(const char *fdname, Error **errp)
2167 fd = qemu_chr_fe_get_msgfd(&cur_mon->chr);
2169 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2173 if (qemu_isdigit(fdname[0])) {
2175 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
2176 "a name not starting with a digit");
2180 qemu_mutex_lock(&cur_mon->mon_lock);
2181 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2182 if (strcmp(monfd->name, fdname) != 0) {
2188 qemu_mutex_unlock(&cur_mon->mon_lock);
2189 /* Make sure close() is outside critical section */
2194 monfd = g_malloc0(sizeof(mon_fd_t));
2195 monfd->name = g_strdup(fdname);
2198 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
2199 qemu_mutex_unlock(&cur_mon->mon_lock);
2202 void qmp_closefd(const char *fdname, Error **errp)
2207 qemu_mutex_lock(&cur_mon->mon_lock);
2208 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2209 if (strcmp(monfd->name, fdname) != 0) {
2213 QLIST_REMOVE(monfd, next);
2215 g_free(monfd->name);
2217 qemu_mutex_unlock(&cur_mon->mon_lock);
2218 /* Make sure close() is outside critical section */
2223 qemu_mutex_unlock(&cur_mon->mon_lock);
2224 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
2227 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
2231 qemu_mutex_lock(&mon->mon_lock);
2232 QLIST_FOREACH(monfd, &mon->fds, next) {
2235 if (strcmp(monfd->name, fdname) != 0) {
2241 /* caller takes ownership of fd */
2242 QLIST_REMOVE(monfd, next);
2243 g_free(monfd->name);
2245 qemu_mutex_unlock(&mon->mon_lock);
2250 qemu_mutex_unlock(&mon->mon_lock);
2251 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
2255 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
2257 MonFdsetFd *mon_fdset_fd;
2258 MonFdsetFd *mon_fdset_fd_next;
2260 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
2261 if ((mon_fdset_fd->removed ||
2262 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
2263 runstate_is_running()) {
2264 close(mon_fdset_fd->fd);
2265 g_free(mon_fdset_fd->opaque);
2266 QLIST_REMOVE(mon_fdset_fd, next);
2267 g_free(mon_fdset_fd);
2271 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
2272 QLIST_REMOVE(mon_fdset, next);
2277 static void monitor_fdsets_cleanup(void)
2279 MonFdset *mon_fdset;
2280 MonFdset *mon_fdset_next;
2282 qemu_mutex_lock(&mon_fdsets_lock);
2283 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
2284 monitor_fdset_cleanup(mon_fdset);
2286 qemu_mutex_unlock(&mon_fdsets_lock);
2289 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
2290 const char *opaque, Error **errp)
2293 Monitor *mon = cur_mon;
2296 fd = qemu_chr_fe_get_msgfd(&mon->chr);
2298 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2302 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
2303 has_opaque, opaque, errp);
2315 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
2317 MonFdset *mon_fdset;
2318 MonFdsetFd *mon_fdset_fd;
2321 qemu_mutex_lock(&mon_fdsets_lock);
2322 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2323 if (mon_fdset->id != fdset_id) {
2326 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2328 if (mon_fdset_fd->fd != fd) {
2331 mon_fdset_fd->removed = true;
2334 mon_fdset_fd->removed = true;
2337 if (has_fd && !mon_fdset_fd) {
2340 monitor_fdset_cleanup(mon_fdset);
2341 qemu_mutex_unlock(&mon_fdsets_lock);
2346 qemu_mutex_unlock(&mon_fdsets_lock);
2348 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
2351 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
2353 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
2356 FdsetInfoList *qmp_query_fdsets(Error **errp)
2358 MonFdset *mon_fdset;
2359 MonFdsetFd *mon_fdset_fd;
2360 FdsetInfoList *fdset_list = NULL;
2362 qemu_mutex_lock(&mon_fdsets_lock);
2363 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2364 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
2365 FdsetFdInfoList *fdsetfd_list = NULL;
2367 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
2368 fdset_info->value->fdset_id = mon_fdset->id;
2370 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2371 FdsetFdInfoList *fdsetfd_info;
2373 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
2374 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
2375 fdsetfd_info->value->fd = mon_fdset_fd->fd;
2376 if (mon_fdset_fd->opaque) {
2377 fdsetfd_info->value->has_opaque = true;
2378 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
2380 fdsetfd_info->value->has_opaque = false;
2383 fdsetfd_info->next = fdsetfd_list;
2384 fdsetfd_list = fdsetfd_info;
2387 fdset_info->value->fds = fdsetfd_list;
2389 fdset_info->next = fdset_list;
2390 fdset_list = fdset_info;
2392 qemu_mutex_unlock(&mon_fdsets_lock);
2397 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
2398 bool has_opaque, const char *opaque,
2401 MonFdset *mon_fdset = NULL;
2402 MonFdsetFd *mon_fdset_fd;
2405 qemu_mutex_lock(&mon_fdsets_lock);
2407 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2408 /* Break if match found or match impossible due to ordering by ID */
2409 if (fdset_id <= mon_fdset->id) {
2410 if (fdset_id < mon_fdset->id) {
2418 if (mon_fdset == NULL) {
2419 int64_t fdset_id_prev = -1;
2420 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
2424 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
2425 "a non-negative value");
2426 qemu_mutex_unlock(&mon_fdsets_lock);
2429 /* Use specified fdset ID */
2430 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2431 mon_fdset_cur = mon_fdset;
2432 if (fdset_id < mon_fdset_cur->id) {
2437 /* Use first available fdset ID */
2438 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2439 mon_fdset_cur = mon_fdset;
2440 if (fdset_id_prev == mon_fdset_cur->id - 1) {
2441 fdset_id_prev = mon_fdset_cur->id;
2448 mon_fdset = g_malloc0(sizeof(*mon_fdset));
2450 mon_fdset->id = fdset_id;
2452 mon_fdset->id = fdset_id_prev + 1;
2455 /* The fdset list is ordered by fdset ID */
2456 if (!mon_fdset_cur) {
2457 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
2458 } else if (mon_fdset->id < mon_fdset_cur->id) {
2459 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
2461 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
2465 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
2466 mon_fdset_fd->fd = fd;
2467 mon_fdset_fd->removed = false;
2469 mon_fdset_fd->opaque = g_strdup(opaque);
2471 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
2473 fdinfo = g_malloc0(sizeof(*fdinfo));
2474 fdinfo->fdset_id = mon_fdset->id;
2475 fdinfo->fd = mon_fdset_fd->fd;
2477 qemu_mutex_unlock(&mon_fdsets_lock);
2481 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
2486 MonFdset *mon_fdset;
2487 MonFdsetFd *mon_fdset_fd;
2491 qemu_mutex_lock(&mon_fdsets_lock);
2492 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2493 if (mon_fdset->id != fdset_id) {
2496 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2497 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2498 if (mon_fd_flags == -1) {
2503 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2504 ret = mon_fdset_fd->fd;
2514 qemu_mutex_unlock(&mon_fdsets_lock);
2519 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2521 MonFdset *mon_fdset;
2522 MonFdsetFd *mon_fdset_fd_dup;
2524 qemu_mutex_lock(&mon_fdsets_lock);
2525 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2526 if (mon_fdset->id != fdset_id) {
2529 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2530 if (mon_fdset_fd_dup->fd == dup_fd) {
2534 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2535 mon_fdset_fd_dup->fd = dup_fd;
2536 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2537 qemu_mutex_unlock(&mon_fdsets_lock);
2542 qemu_mutex_unlock(&mon_fdsets_lock);
2546 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2548 MonFdset *mon_fdset;
2549 MonFdsetFd *mon_fdset_fd_dup;
2551 qemu_mutex_lock(&mon_fdsets_lock);
2552 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2553 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2554 if (mon_fdset_fd_dup->fd == dup_fd) {
2556 QLIST_REMOVE(mon_fdset_fd_dup, next);
2557 if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
2558 monitor_fdset_cleanup(mon_fdset);
2562 qemu_mutex_unlock(&mon_fdsets_lock);
2563 return mon_fdset->id;
2570 qemu_mutex_unlock(&mon_fdsets_lock);
2574 int monitor_fdset_dup_fd_find(int dup_fd)
2576 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2579 void monitor_fdset_dup_fd_remove(int dup_fd)
2581 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2584 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2587 Error *local_err = NULL;
2589 if (!qemu_isdigit(fdname[0]) && mon) {
2590 fd = monitor_get_fd(mon, fdname, &local_err);
2592 fd = qemu_parse_fd(fdname);
2594 error_setg(&local_err, "Invalid file descriptor number '%s'",
2599 error_propagate(errp, local_err);
2608 /* Please update hmp-commands.hx when adding or changing commands */
2609 static mon_cmd_t info_cmds[] = {
2610 #include "hmp-commands-info.h"
2614 /* mon_cmds and info_cmds would be sorted at runtime */
2615 static mon_cmd_t mon_cmds[] = {
2616 #include "hmp-commands.h"
2620 /*******************************************************************/
2622 static const char *pch;
2623 static sigjmp_buf expr_env;
2626 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2627 expr_error(Monitor *mon, const char *fmt, ...)
2631 monitor_vprintf(mon, fmt, ap);
2632 monitor_printf(mon, "\n");
2634 siglongjmp(expr_env, 1);
2637 /* return 0 if OK, -1 if not found */
2638 static int get_monitor_def(target_long *pval, const char *name)
2640 const MonitorDef *md = target_monitor_defs();
2641 CPUState *cs = mon_get_cpu();
2646 if (cs == NULL || md == NULL) {
2650 for(; md->name != NULL; md++) {
2651 if (compare_cmd(name, md->name)) {
2652 if (md->get_value) {
2653 *pval = md->get_value(md, md->offset);
2655 CPUArchState *env = mon_get_cpu_env();
2656 ptr = (uint8_t *)env + md->offset;
2659 *pval = *(int32_t *)ptr;
2662 *pval = *(target_long *)ptr;
2673 ret = target_get_monitor_def(cs, name, &tmp);
2675 *pval = (target_long) tmp;
2681 static void next(void)
2685 while (qemu_isspace(*pch))
2690 static int64_t expr_sum(Monitor *mon);
2692 static int64_t expr_unary(Monitor *mon)
2701 n = expr_unary(mon);
2705 n = -expr_unary(mon);
2709 n = ~expr_unary(mon);
2715 expr_error(mon, "')' expected");
2722 expr_error(mon, "character constant expected");
2726 expr_error(mon, "missing terminating \' character");
2736 while ((*pch >= 'a' && *pch <= 'z') ||
2737 (*pch >= 'A' && *pch <= 'Z') ||
2738 (*pch >= '0' && *pch <= '9') ||
2739 *pch == '_' || *pch == '.') {
2740 if ((q - buf) < sizeof(buf) - 1)
2744 while (qemu_isspace(*pch))
2747 ret = get_monitor_def(®, buf);
2749 expr_error(mon, "unknown register");
2754 expr_error(mon, "unexpected end of expression");
2759 n = strtoull(pch, &p, 0);
2760 if (errno == ERANGE) {
2761 expr_error(mon, "number too large");
2764 expr_error(mon, "invalid char '%c' in expression", *p);
2767 while (qemu_isspace(*pch))
2775 static int64_t expr_prod(Monitor *mon)
2780 val = expr_unary(mon);
2783 if (op != '*' && op != '/' && op != '%')
2786 val2 = expr_unary(mon);
2795 expr_error(mon, "division by zero");
2806 static int64_t expr_logic(Monitor *mon)
2811 val = expr_prod(mon);
2814 if (op != '&' && op != '|' && op != '^')
2817 val2 = expr_prod(mon);
2834 static int64_t expr_sum(Monitor *mon)
2839 val = expr_logic(mon);
2842 if (op != '+' && op != '-')
2845 val2 = expr_logic(mon);
2854 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2857 if (sigsetjmp(expr_env, 0)) {
2861 while (qemu_isspace(*pch))
2863 *pval = expr_sum(mon);
2868 static int get_double(Monitor *mon, double *pval, const char **pp)
2870 const char *p = *pp;
2874 d = strtod(p, &tailp);
2876 monitor_printf(mon, "Number expected\n");
2879 if (d != d || d - d != 0) {
2880 /* NaN or infinity */
2881 monitor_printf(mon, "Bad number\n");
2890 * Store the command-name in cmdname, and return a pointer to
2891 * the remaining of the command string.
2893 static const char *get_command_name(const char *cmdline,
2894 char *cmdname, size_t nlen)
2897 const char *p, *pstart;
2900 while (qemu_isspace(*p))
2905 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2910 memcpy(cmdname, pstart, len);
2911 cmdname[len] = '\0';
2916 * Read key of 'type' into 'key' and return the current
2919 static char *key_get_info(const char *type, char **key)
2927 p = strchr(type, ':');
2934 str = g_malloc(len + 1);
2935 memcpy(str, type, len);
2942 static int default_fmt_format = 'x';
2943 static int default_fmt_size = 4;
2945 static int is_valid_option(const char *c, const char *typestr)
2953 typestr = strstr(typestr, option);
2954 return (typestr != NULL);
2957 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2958 const char *cmdname)
2960 const mon_cmd_t *cmd;
2962 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2963 if (compare_cmd(cmdname, cmd->name)) {
2972 * Parse command name from @cmdp according to command table @table.
2973 * If blank, return NULL.
2974 * Else, if no valid command can be found, report to @mon, and return
2976 * Else, change @cmdp to point right behind the name, and return its
2977 * command table entry.
2978 * Do not assume the return value points into @table! It doesn't when
2979 * the command is found in a sub-command table.
2981 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2982 const char *cmdp_start,
2987 const mon_cmd_t *cmd;
2990 /* extract the command name */
2991 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2995 cmd = search_dispatch_table(table, cmdname);
2997 monitor_printf(mon, "unknown command: '%.*s'\n",
2998 (int)(p - cmdp_start), cmdp_start);
3001 if (runstate_check(RUN_STATE_PRECONFIG) && !cmd_can_preconfig(cmd)) {
3002 monitor_printf(mon, "Command '%.*s' not available with -preconfig "
3003 "until after exit_preconfig.\n",
3004 (int)(p - cmdp_start), cmdp_start);
3008 /* filter out following useless space */
3009 while (qemu_isspace(*p)) {
3014 /* search sub command */
3015 if (cmd->sub_table != NULL && *p != '\0') {
3016 return monitor_parse_command(mon, cmdp_start, cmdp, cmd->sub_table);
3023 * Parse arguments for @cmd.
3024 * If it can't be parsed, report to @mon, and return NULL.
3025 * Else, insert command arguments into a QDict, and return it.
3026 * Note: On success, caller has to free the QDict structure.
3029 static QDict *monitor_parse_arguments(Monitor *mon,
3031 const mon_cmd_t *cmd)
3033 const char *typestr;
3036 const char *p = *endp;
3038 QDict *qdict = qdict_new();
3040 /* parse the parameters */
3041 typestr = cmd->args_type;
3043 typestr = key_get_info(typestr, &key);
3055 while (qemu_isspace(*p))
3057 if (*typestr == '?') {
3060 /* no optional string: NULL argument */
3064 ret = get_str(buf, sizeof(buf), &p);
3068 monitor_printf(mon, "%s: filename expected\n",
3072 monitor_printf(mon, "%s: block device name expected\n",
3076 monitor_printf(mon, "%s: string expected\n", cmd->name);
3081 qdict_put_str(qdict, key, buf);
3086 QemuOptsList *opts_list;
3089 opts_list = qemu_find_opts(key);
3090 if (!opts_list || opts_list->desc->name) {
3093 while (qemu_isspace(*p)) {
3098 if (get_str(buf, sizeof(buf), &p) < 0) {
3101 opts = qemu_opts_parse_noisily(opts_list, buf, true);
3105 qemu_opts_to_qdict(opts, qdict);
3106 qemu_opts_del(opts);
3111 int count, format, size;
3113 while (qemu_isspace(*p))
3119 if (qemu_isdigit(*p)) {
3121 while (qemu_isdigit(*p)) {
3122 count = count * 10 + (*p - '0');
3160 if (*p != '\0' && !qemu_isspace(*p)) {
3161 monitor_printf(mon, "invalid char in format: '%c'\n",
3166 format = default_fmt_format;
3167 if (format != 'i') {
3168 /* for 'i', not specifying a size gives -1 as size */
3170 size = default_fmt_size;
3171 default_fmt_size = size;
3173 default_fmt_format = format;
3176 format = default_fmt_format;
3177 if (format != 'i') {
3178 size = default_fmt_size;
3183 qdict_put_int(qdict, "count", count);
3184 qdict_put_int(qdict, "format", format);
3185 qdict_put_int(qdict, "size", size);
3194 while (qemu_isspace(*p))
3196 if (*typestr == '?' || *typestr == '.') {
3197 if (*typestr == '?') {
3205 while (qemu_isspace(*p))
3214 if (get_expr(mon, &val, &p))
3216 /* Check if 'i' is greater than 32-bit */
3217 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3218 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
3219 monitor_printf(mon, "integer is for 32-bit values\n");
3221 } else if (c == 'M') {
3223 monitor_printf(mon, "enter a positive value\n");
3228 qdict_put_int(qdict, key, val);
3237 while (qemu_isspace(*p)) {
3240 if (*typestr == '?') {
3246 ret = qemu_strtosz_MiB(p, &end, &val);
3247 if (ret < 0 || val > INT64_MAX) {
3248 monitor_printf(mon, "invalid size\n");
3251 qdict_put_int(qdict, key, val);
3259 while (qemu_isspace(*p))
3261 if (*typestr == '?') {
3267 if (get_double(mon, &val, &p) < 0) {
3270 if (p[0] && p[1] == 's') {
3273 val /= 1e3; p += 2; break;
3275 val /= 1e6; p += 2; break;
3277 val /= 1e9; p += 2; break;
3280 if (*p && !qemu_isspace(*p)) {
3281 monitor_printf(mon, "Unknown unit suffix\n");
3284 qdict_put(qdict, key, qnum_from_double(val));
3292 while (qemu_isspace(*p)) {
3296 while (qemu_isgraph(*p)) {
3299 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3301 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3304 monitor_printf(mon, "Expected 'on' or 'off'\n");
3307 qdict_put_bool(qdict, key, val);
3312 const char *tmp = p;
3319 while (qemu_isspace(*p))
3324 if(!is_valid_option(p, typestr)) {
3326 monitor_printf(mon, "%s: unsupported option -%c\n",
3338 qdict_put_bool(qdict, key, true);
3345 /* package all remaining string */
3348 while (qemu_isspace(*p)) {
3351 if (*typestr == '?') {
3354 /* no remaining string: NULL argument */
3360 monitor_printf(mon, "%s: string expected\n",
3364 qdict_put_str(qdict, key, p);
3370 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
3376 /* check that all arguments were parsed */
3377 while (qemu_isspace(*p))
3380 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3388 qobject_unref(qdict);
3393 static void handle_hmp_command(Monitor *mon, const char *cmdline)
3396 const mon_cmd_t *cmd;
3397 const char *cmd_start = cmdline;
3399 trace_handle_hmp_command(mon, cmdline);
3401 cmd = monitor_parse_command(mon, cmdline, &cmdline, mon->cmd_table);
3406 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
3408 while (cmdline > cmd_start && qemu_isspace(cmdline[-1])) {
3411 monitor_printf(mon, "Try \"help %.*s\" for more information\n",
3412 (int)(cmdline - cmd_start), cmd_start);
3416 cmd->cmd(mon, qdict);
3417 qobject_unref(qdict);
3420 static void cmd_completion(Monitor *mon, const char *name, const char *list)
3422 const char *p, *pstart;
3429 p = qemu_strchrnul(p, '|');
3431 if (len > sizeof(cmd) - 2)
3432 len = sizeof(cmd) - 2;
3433 memcpy(cmd, pstart, len);
3435 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3436 readline_add_completion(mon->rs, cmd);
3444 static void file_completion(Monitor *mon, const char *input)
3449 char file[1024], file_prefix[1024];
3453 p = strrchr(input, '/');
3456 pstrcpy(file_prefix, sizeof(file_prefix), input);
3457 pstrcpy(path, sizeof(path), ".");
3459 input_path_len = p - input + 1;
3460 memcpy(path, input, input_path_len);
3461 if (input_path_len > sizeof(path) - 1)
3462 input_path_len = sizeof(path) - 1;
3463 path[input_path_len] = '\0';
3464 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3467 ffs = opendir(path);
3476 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
3480 if (strstart(d->d_name, file_prefix, NULL)) {
3481 memcpy(file, input, input_path_len);
3482 if (input_path_len < sizeof(file))
3483 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3485 /* stat the file to find out if it's a directory.
3486 * In that case add a slash to speed up typing long paths
3488 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
3489 pstrcat(file, sizeof(file), "/");
3491 readline_add_completion(mon->rs, file);
3497 static const char *next_arg_type(const char *typestr)
3499 const char *p = strchr(typestr, ':');
3500 return (p != NULL ? ++p : typestr);
3503 static void add_completion_option(ReadLineState *rs, const char *str,
3506 if (!str || !option) {
3509 if (!strncmp(option, str, strlen(str))) {
3510 readline_add_completion(rs, option);
3514 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3517 ChardevBackendInfoList *list, *start;
3523 readline_set_completion_index(rs, len);
3525 start = list = qmp_query_chardev_backends(NULL);
3527 const char *chr_name = list->value->name;
3529 if (!strncmp(chr_name, str, len)) {
3530 readline_add_completion(rs, chr_name);
3534 qapi_free_ChardevBackendInfoList(start);
3537 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3546 readline_set_completion_index(rs, len);
3547 for (i = 0; i < NET_CLIENT_DRIVER__MAX; i++) {
3548 add_completion_option(rs, str, NetClientDriver_str(i));
3552 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3562 readline_set_completion_index(rs, len);
3563 list = elt = object_class_get_list(TYPE_DEVICE, false);
3566 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3568 name = object_class_get_name(OBJECT_CLASS(dc));
3570 if (dc->user_creatable
3571 && !strncmp(name, str, len)) {
3572 readline_add_completion(rs, name);
3579 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3589 readline_set_completion_index(rs, len);
3590 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3594 name = object_class_get_name(OBJECT_CLASS(elt->data));
3595 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3596 readline_add_completion(rs, name);
3603 static void peripheral_device_del_completion(ReadLineState *rs,
3604 const char *str, size_t len)
3606 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3607 GSList *list, *item;
3609 list = qdev_build_hotpluggable_device_list(peripheral);
3614 for (item = list; item; item = g_slist_next(item)) {
3615 DeviceState *dev = item->data;
3617 if (dev->id && !strncmp(str, dev->id, len)) {
3618 readline_add_completion(rs, dev->id);
3625 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3628 ChardevInfoList *list, *start;
3634 readline_set_completion_index(rs, len);
3636 start = list = qmp_query_chardev(NULL);
3638 ChardevInfo *chr = list->value;
3640 if (!strncmp(chr->label, str, len)) {
3641 readline_add_completion(rs, chr->label);
3645 qapi_free_ChardevInfoList(start);
3648 static void ringbuf_completion(ReadLineState *rs, const char *str)
3651 ChardevInfoList *list, *start;
3654 readline_set_completion_index(rs, len);
3656 start = list = qmp_query_chardev(NULL);
3658 ChardevInfo *chr_info = list->value;
3660 if (!strncmp(chr_info->label, str, len)) {
3661 Chardev *chr = qemu_chr_find(chr_info->label);
3662 if (chr && CHARDEV_IS_RINGBUF(chr)) {
3663 readline_add_completion(rs, chr_info->label);
3668 qapi_free_ChardevInfoList(start);
3671 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3676 ringbuf_completion(rs, str);
3679 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3688 readline_set_completion_index(rs, len);
3689 peripheral_device_del_completion(rs, str, len);
3692 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3694 ObjectPropertyInfoList *list, *start;
3701 readline_set_completion_index(rs, len);
3703 start = list = qmp_qom_list("/objects", NULL);
3705 ObjectPropertyInfo *info = list->value;
3707 if (!strncmp(info->type, "child<", 5)
3708 && !strncmp(info->name, str, len)) {
3709 readline_add_completion(rs, info->name);
3713 qapi_free_ObjectPropertyInfoList(start);
3716 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3725 sep = strrchr(str, '-');
3730 readline_set_completion_index(rs, len);
3731 for (i = 0; i < Q_KEY_CODE__MAX; i++) {
3732 if (!strncmp(str, QKeyCode_str(i), len)) {
3733 readline_add_completion(rs, QKeyCode_str(i));
3738 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3743 readline_set_completion_index(rs, len);
3745 NetClientState *ncs[MAX_QUEUE_NUM];
3747 count = qemu_find_net_clients_except(NULL, ncs,
3748 NET_CLIENT_DRIVER_NONE,
3750 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3751 const char *name = ncs[i]->name;
3752 if (!strncmp(str, name, len)) {
3753 readline_add_completion(rs, name);
3756 } else if (nb_args == 3) {
3757 add_completion_option(rs, str, "on");
3758 add_completion_option(rs, str, "off");
3762 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3765 NetClientState *ncs[MAX_QUEUE_NUM];
3772 readline_set_completion_index(rs, len);
3773 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC,
3775 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3777 const char *name = ncs[i]->name;
3778 if (strncmp(str, name, len)) {
3781 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3783 readline_add_completion(rs, name);
3788 void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
3793 readline_set_completion_index(rs, len);
3795 TraceEventIter iter;
3797 char *pattern = g_strdup_printf("%s*", str);
3798 trace_event_iter_init(&iter, pattern);
3799 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3800 readline_add_completion(rs, trace_event_get_name(ev));
3806 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3811 readline_set_completion_index(rs, len);
3813 TraceEventIter iter;
3815 char *pattern = g_strdup_printf("%s*", str);
3816 trace_event_iter_init(&iter, pattern);
3817 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3818 readline_add_completion(rs, trace_event_get_name(ev));
3821 } else if (nb_args == 3) {
3822 add_completion_option(rs, str, "on");
3823 add_completion_option(rs, str, "off");
3827 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3834 readline_set_completion_index(rs, strlen(str));
3835 for (i = 0; i < WATCHDOG_ACTION__MAX; i++) {
3836 add_completion_option(rs, str, WatchdogAction_str(i));
3840 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3846 readline_set_completion_index(rs, len);
3849 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
3850 const char *name = MigrationCapability_str(i);
3851 if (!strncmp(str, name, len)) {
3852 readline_add_completion(rs, name);
3855 } else if (nb_args == 3) {
3856 add_completion_option(rs, str, "on");
3857 add_completion_option(rs, str, "off");
3861 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3867 readline_set_completion_index(rs, len);
3870 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
3871 const char *name = MigrationParameter_str(i);
3872 if (!strncmp(str, name, len)) {
3873 readline_add_completion(rs, name);
3879 static void vm_completion(ReadLineState *rs, const char *str)
3882 BlockDriverState *bs;
3883 BdrvNextIterator it;
3886 readline_set_completion_index(rs, len);
3888 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
3889 SnapshotInfoList *snapshots, *snapshot;
3890 AioContext *ctx = bdrv_get_aio_context(bs);
3893 aio_context_acquire(ctx);
3894 if (bdrv_can_snapshot(bs)) {
3895 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
3897 aio_context_release(ctx);
3902 snapshot = snapshots;
3904 char *completion = snapshot->value->name;
3905 if (!strncmp(str, completion, len)) {
3906 readline_add_completion(rs, completion);
3908 completion = snapshot->value->id;
3909 if (!strncmp(str, completion, len)) {
3910 readline_add_completion(rs, completion);
3912 snapshot = snapshot->next;
3914 qapi_free_SnapshotInfoList(snapshots);
3919 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3922 vm_completion(rs, str);
3926 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3929 vm_completion(rs, str);
3933 static void monitor_find_completion_by_table(Monitor *mon,
3934 const mon_cmd_t *cmd_table,
3938 const char *cmdname;
3940 const char *ptype, *old_ptype, *str, *name;
3941 const mon_cmd_t *cmd;
3942 BlockBackend *blk = NULL;
3945 /* command completion */
3950 readline_set_completion_index(mon->rs, strlen(cmdname));
3951 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3952 if (!runstate_check(RUN_STATE_PRECONFIG) ||
3953 cmd_can_preconfig(cmd)) {
3954 cmd_completion(mon, cmdname, cmd->name);
3958 /* find the command */
3959 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3960 if (compare_cmd(args[0], cmd->name) &&
3961 (!runstate_check(RUN_STATE_PRECONFIG) ||
3962 cmd_can_preconfig(cmd))) {
3970 if (cmd->sub_table) {
3971 /* do the job again */
3972 monitor_find_completion_by_table(mon, cmd->sub_table,
3973 &args[1], nb_args - 1);
3976 if (cmd->command_completion) {
3977 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3981 ptype = next_arg_type(cmd->args_type);
3982 for(i = 0; i < nb_args - 2; i++) {
3983 if (*ptype != '\0') {
3984 ptype = next_arg_type(ptype);
3985 while (*ptype == '?')
3986 ptype = next_arg_type(ptype);
3989 str = args[nb_args - 1];
3991 while (*ptype == '-' && old_ptype != ptype) {
3993 ptype = next_arg_type(ptype);
3997 /* file completion */
3998 readline_set_completion_index(mon->rs, strlen(str));
3999 file_completion(mon, str);
4002 /* block device name completion */
4003 readline_set_completion_index(mon->rs, strlen(str));
4004 while ((blk = blk_next(blk)) != NULL) {
4005 name = blk_name(blk);
4006 if (str[0] == '\0' ||
4007 !strncmp(name, str, strlen(str))) {
4008 readline_add_completion(mon->rs, name);
4014 if (!strcmp(cmd->name, "help|?")) {
4015 monitor_find_completion_by_table(mon, cmd_table,
4016 &args[1], nb_args - 1);
4025 static void monitor_find_completion(void *opaque,
4026 const char *cmdline)
4028 Monitor *mon = opaque;
4029 char *args[MAX_ARGS];
4032 /* 1. parse the cmdline */
4033 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
4037 /* if the line ends with a space, it means we want to complete the
4039 len = strlen(cmdline);
4040 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
4041 if (nb_args >= MAX_ARGS) {
4044 args[nb_args++] = g_strdup("");
4047 /* 2. auto complete according to args */
4048 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
4051 free_cmdline_args(args, nb_args);
4054 static int monitor_can_read(void *opaque)
4056 Monitor *mon = opaque;
4058 return !atomic_mb_read(&mon->suspend_cnt);
4062 * Emit QMP response @rsp with ID @id to @mon.
4063 * Null @rsp can only happen for commands with QCO_NO_SUCCESS_RESP.
4064 * Nothing is emitted then.
4066 static void monitor_qmp_respond(Monitor *mon, QDict *rsp, QObject *id)
4070 qdict_put_obj(rsp, "id", qobject_ref(id));
4073 qmp_send_response(mon, rsp);
4077 static void monitor_qmp_dispatch(Monitor *mon, QObject *req, QObject *id)
4086 rsp = qmp_dispatch(mon->qmp.commands, req, qmp_oob_enabled(mon));
4090 if (mon->qmp.commands == &qmp_cap_negotiation_commands) {
4091 error = qdict_get_qdict(rsp, "error");
4093 && !g_strcmp0(qdict_get_try_str(error, "class"),
4094 QapiErrorClass_str(ERROR_CLASS_COMMAND_NOT_FOUND))) {
4095 /* Provide a more useful error message */
4096 qdict_del(error, "desc");
4097 qdict_put_str(error, "desc", "Expecting capabilities negotiation"
4098 " with 'qmp_capabilities'");
4102 monitor_qmp_respond(mon, rsp, id);
4107 * Pop a QMP request from a monitor request queue.
4108 * Return the request, or NULL all request queues are empty.
4109 * We are using round-robin fashion to pop the request, to avoid
4110 * processing commands only on a very busy monitor. To achieve that,
4111 * when we process one request on a specific monitor, we put that
4112 * monitor to the end of mon_list queue.
4114 * Note: if the function returned with non-NULL, then the caller will
4115 * be with mon->qmp.qmp_queue_lock held, and the caller is responsible
4118 static QMPRequest *monitor_qmp_requests_pop_any_with_lock(void)
4120 QMPRequest *req_obj = NULL;
4123 qemu_mutex_lock(&monitor_lock);
4125 QTAILQ_FOREACH(mon, &mon_list, entry) {
4126 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4127 req_obj = g_queue_pop_head(mon->qmp.qmp_requests);
4129 /* With the lock of corresponding queue held */
4132 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4137 * We found one request on the monitor. Degrade this monitor's
4138 * priority to lowest by re-inserting it to end of queue.
4140 QTAILQ_REMOVE(&mon_list, mon, entry);
4141 QTAILQ_INSERT_TAIL(&mon_list, mon, entry);
4144 qemu_mutex_unlock(&monitor_lock);
4149 static void monitor_qmp_bh_dispatcher(void *data)
4151 QMPRequest *req_obj = monitor_qmp_requests_pop_any_with_lock();
4161 /* qmp_oob_enabled() might change after "qmp_capabilities" */
4162 need_resume = !qmp_oob_enabled(mon) ||
4163 mon->qmp.qmp_requests->length == QMP_REQ_QUEUE_LEN_MAX - 1;
4164 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4166 trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj->id) ?: "");
4167 monitor_qmp_dispatch(mon, req_obj->req, req_obj->id);
4169 assert(req_obj->err);
4170 rsp = qmp_error_response(req_obj->err);
4171 req_obj->err = NULL;
4172 monitor_qmp_respond(mon, rsp, NULL);
4177 /* Pairs with the monitor_suspend() in handle_qmp_command() */
4178 monitor_resume(mon);
4180 qmp_request_free(req_obj);
4182 /* Reschedule instead of looping so the main loop stays responsive */
4183 qemu_bh_schedule(qmp_dispatcher_bh);
4186 static void handle_qmp_command(void *opaque, QObject *req, Error *err)
4188 Monitor *mon = opaque;
4191 QMPRequest *req_obj;
4193 assert(!req != !err);
4195 qdict = qobject_to(QDict, req);
4197 id = qobject_ref(qdict_get(qdict, "id"));
4198 qdict_del(qdict, "id");
4199 } /* else will fail qmp_dispatch() */
4201 if (req && trace_event_get_state_backends(TRACE_HANDLE_QMP_COMMAND)) {
4202 QString *req_json = qobject_to_json(req);
4203 trace_handle_qmp_command(mon, qstring_get_str(req_json));
4204 qobject_unref(req_json);
4207 if (qdict && qmp_is_oob(qdict)) {
4208 /* OOB commands are executed immediately */
4209 trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(id)
4211 monitor_qmp_dispatch(mon, req, id);
4217 req_obj = g_new0(QMPRequest, 1);
4223 /* Protect qmp_requests and fetching its length. */
4224 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4227 * Suspend the monitor when we can't queue more requests after
4228 * this one. Dequeuing in monitor_qmp_bh_dispatcher() will resume
4229 * it. Note that when OOB is disabled, we queue at most one
4230 * command, for backward compatibility.
4232 if (!qmp_oob_enabled(mon) ||
4233 mon->qmp.qmp_requests->length == QMP_REQ_QUEUE_LEN_MAX - 1) {
4234 monitor_suspend(mon);
4238 * Put the request to the end of queue so that requests will be
4239 * handled in time order. Ownership for req_obj, req, id,
4240 * etc. will be delivered to the handler side.
4242 assert(mon->qmp.qmp_requests->length < QMP_REQ_QUEUE_LEN_MAX);
4243 g_queue_push_tail(mon->qmp.qmp_requests, req_obj);
4244 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4246 /* Kick the dispatcher routine */
4247 qemu_bh_schedule(qmp_dispatcher_bh);
4250 static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
4252 Monitor *mon = opaque;
4254 json_message_parser_feed(&mon->qmp.parser, (const char *) buf, size);
4257 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4259 Monitor *old_mon = cur_mon;
4265 for (i = 0; i < size; i++)
4266 readline_handle_byte(cur_mon->rs, buf[i]);
4268 if (size == 0 || buf[size - 1] != 0)
4269 monitor_printf(cur_mon, "corrupted command\n");
4271 handle_hmp_command(cur_mon, (char *)buf);
4277 static void monitor_command_cb(void *opaque, const char *cmdline,
4278 void *readline_opaque)
4280 Monitor *mon = opaque;
4282 monitor_suspend(mon);
4283 handle_hmp_command(mon, cmdline);
4284 monitor_resume(mon);
4287 int monitor_suspend(Monitor *mon)
4289 if (monitor_is_hmp_non_interactive(mon)) {
4293 atomic_inc(&mon->suspend_cnt);
4295 if (mon->use_io_thread) {
4297 * Kick I/O thread to make sure this takes effect. It'll be
4298 * evaluated again in prepare() of the watch object.
4300 aio_notify(iothread_get_aio_context(mon_iothread));
4303 trace_monitor_suspend(mon, 1);
4307 static void monitor_accept_input(void *opaque)
4309 Monitor *mon = opaque;
4311 qemu_chr_fe_accept_input(&mon->chr);
4314 void monitor_resume(Monitor *mon)
4316 if (monitor_is_hmp_non_interactive(mon)) {
4320 if (atomic_dec_fetch(&mon->suspend_cnt) == 0) {
4323 if (mon->use_io_thread) {
4324 ctx = iothread_get_aio_context(mon_iothread);
4326 ctx = qemu_get_aio_context();
4329 if (!monitor_is_qmp(mon)) {
4331 readline_show_prompt(mon->rs);
4334 aio_bh_schedule_oneshot(ctx, monitor_accept_input, mon);
4337 trace_monitor_suspend(mon, -1);
4340 static QDict *qmp_greeting(Monitor *mon)
4342 QList *cap_list = qlist_new();
4343 QObject *ver = NULL;
4346 qmp_marshal_query_version(NULL, &ver, NULL);
4348 for (cap = 0; cap < QMP_CAPABILITY__MAX; cap++) {
4349 if (mon->qmp.capab_offered[cap]) {
4350 qlist_append_str(cap_list, QMPCapability_str(cap));
4354 return qdict_from_jsonf_nofail(
4355 "{'QMP': {'version': %p, 'capabilities': %p}}",
4359 static void monitor_qmp_event(void *opaque, int event)
4362 Monitor *mon = opaque;
4365 case CHR_EVENT_OPENED:
4366 mon->qmp.commands = &qmp_cap_negotiation_commands;
4367 monitor_qmp_caps_reset(mon);
4368 data = qmp_greeting(mon);
4369 qmp_send_response(mon, data);
4370 qobject_unref(data);
4373 case CHR_EVENT_CLOSED:
4375 * Note: this is only useful when the output of the chardev
4376 * backend is still open. For example, when the backend is
4377 * stdio, it's possible that stdout is still open when stdin
4380 monitor_qmp_cleanup_queues(mon);
4381 json_message_parser_destroy(&mon->qmp.parser);
4382 json_message_parser_init(&mon->qmp.parser, handle_qmp_command,
4385 monitor_fdsets_cleanup();
4390 static void monitor_event(void *opaque, int event)
4392 Monitor *mon = opaque;
4395 case CHR_EVENT_MUX_IN:
4396 qemu_mutex_lock(&mon->mon_lock);
4398 qemu_mutex_unlock(&mon->mon_lock);
4399 if (mon->reset_seen) {
4400 readline_restart(mon->rs);
4401 monitor_resume(mon);
4404 atomic_mb_set(&mon->suspend_cnt, 0);
4408 case CHR_EVENT_MUX_OUT:
4409 if (mon->reset_seen) {
4410 if (atomic_mb_read(&mon->suspend_cnt) == 0) {
4411 monitor_printf(mon, "\n");
4414 monitor_suspend(mon);
4416 atomic_inc(&mon->suspend_cnt);
4418 qemu_mutex_lock(&mon->mon_lock);
4420 qemu_mutex_unlock(&mon->mon_lock);
4423 case CHR_EVENT_OPENED:
4424 monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4425 "information\n", QEMU_VERSION);
4426 if (!mon->mux_out) {
4427 readline_restart(mon->rs);
4428 readline_show_prompt(mon->rs);
4430 mon->reset_seen = 1;
4434 case CHR_EVENT_CLOSED:
4436 monitor_fdsets_cleanup();
4442 compare_mon_cmd(const void *a, const void *b)
4444 return strcmp(((const mon_cmd_t *)a)->name,
4445 ((const mon_cmd_t *)b)->name);
4448 static void sortcmdlist(void)
4451 int elem_size = sizeof(mon_cmd_t);
4453 array_num = sizeof(mon_cmds)/elem_size-1;
4454 qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
4456 array_num = sizeof(info_cmds)/elem_size-1;
4457 qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
4460 static void monitor_iothread_init(void)
4462 mon_iothread = iothread_create("mon_iothread", &error_abort);
4465 void monitor_init_globals(void)
4467 monitor_init_qmp_commands();
4468 monitor_qapi_event_init();
4470 qemu_mutex_init(&monitor_lock);
4471 qemu_mutex_init(&mon_fdsets_lock);
4474 * The dispatcher BH must run in the main loop thread, since we
4475 * have commands assuming that context. It would be nice to get
4476 * rid of those assumptions.
4478 qmp_dispatcher_bh = aio_bh_new(iohandler_get_aio_context(),
4479 monitor_qmp_bh_dispatcher,
4483 /* These functions just adapt the readline interface in a typesafe way. We
4484 * could cast function pointers but that discards compiler checks.
4486 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
4487 const char *fmt, ...)
4491 monitor_vprintf(opaque, fmt, ap);
4495 static void monitor_readline_flush(void *opaque)
4497 monitor_flush(opaque);
4501 * Print to current monitor if we have one, else to stream.
4502 * TODO should return int, so callers can calculate width, but that
4503 * requires surgery to monitor_vprintf(). Left for another day.
4505 void monitor_vfprintf(FILE *stream, const char *fmt, va_list ap)
4507 if (cur_mon && !monitor_cur_is_qmp()) {
4508 monitor_vprintf(cur_mon, fmt, ap);
4510 vfprintf(stream, fmt, ap);
4515 * Print to current monitor if we have one, else to stderr.
4516 * TODO should return int, so callers can calculate width, but that
4517 * requires surgery to monitor_vprintf(). Left for another day.
4519 void error_vprintf(const char *fmt, va_list ap)
4521 monitor_vfprintf(stderr, fmt, ap);
4524 void error_vprintf_unless_qmp(const char *fmt, va_list ap)
4526 if (cur_mon && !monitor_cur_is_qmp()) {
4527 monitor_vprintf(cur_mon, fmt, ap);
4528 } else if (!cur_mon) {
4529 vfprintf(stderr, fmt, ap);
4533 static void monitor_list_append(Monitor *mon)
4535 qemu_mutex_lock(&monitor_lock);
4537 * This prevents inserting new monitors during monitor_cleanup().
4538 * A cleaner solution would involve the main thread telling other
4539 * threads to terminate, waiting for their termination.
4541 if (!monitor_destroyed) {
4542 QTAILQ_INSERT_HEAD(&mon_list, mon, entry);
4545 qemu_mutex_unlock(&monitor_lock);
4548 monitor_data_destroy(mon);
4553 static void monitor_qmp_setup_handlers_bh(void *opaque)
4555 Monitor *mon = opaque;
4556 GMainContext *context;
4558 assert(mon->use_io_thread);
4559 context = iothread_get_g_main_context(mon_iothread);
4561 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read,
4562 monitor_qmp_event, NULL, mon, context, true);
4563 monitor_list_append(mon);
4566 void monitor_init(Chardev *chr, int flags)
4568 Monitor *mon = g_malloc(sizeof(*mon));
4569 bool use_readline = flags & MONITOR_USE_READLINE;
4571 /* Note: we run QMP monitor in I/O thread when @chr supports that */
4572 monitor_data_init(mon, false,
4573 (flags & MONITOR_USE_CONTROL)
4574 && qemu_chr_has_feature(chr,
4575 QEMU_CHAR_FEATURE_GCONTEXT));
4577 qemu_chr_fe_init(&mon->chr, chr, &error_abort);
4580 mon->rs = readline_init(monitor_readline_printf,
4581 monitor_readline_flush,
4583 monitor_find_completion);
4584 monitor_read_command(mon, 0);
4587 if (monitor_is_qmp(mon)) {
4588 qemu_chr_fe_set_echo(&mon->chr, true);
4589 json_message_parser_init(&mon->qmp.parser, handle_qmp_command,
4591 if (mon->use_io_thread) {
4593 * Make sure the old iowatch is gone. It's possible when
4594 * e.g. the chardev is in client mode, with wait=on.
4596 remove_fd_in_watch(chr);
4598 * We can't call qemu_chr_fe_set_handlers() directly here
4599 * since chardev might be running in the monitor I/O
4600 * thread. Schedule a bottom half.
4602 aio_bh_schedule_oneshot(iothread_get_aio_context(mon_iothread),
4603 monitor_qmp_setup_handlers_bh, mon);
4604 /* The bottom half will add @mon to @mon_list */
4607 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read,
4608 monitor_qmp_read, monitor_qmp_event,
4609 NULL, mon, NULL, true);
4612 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read,
4613 monitor_event, NULL, mon, NULL, true);
4616 monitor_list_append(mon);
4619 void monitor_cleanup(void)
4621 Monitor *mon, *next;
4624 * We need to explicitly stop the I/O thread (but not destroy it),
4625 * clean up the monitor resources, then destroy the I/O thread since
4626 * we need to unregister from chardev below in
4627 * monitor_data_destroy(), and chardev is not thread-safe yet
4630 iothread_stop(mon_iothread);
4633 /* Flush output buffers and destroy monitors */
4634 qemu_mutex_lock(&monitor_lock);
4635 monitor_destroyed = true;
4636 QTAILQ_FOREACH_SAFE(mon, &mon_list, entry, next) {
4637 QTAILQ_REMOVE(&mon_list, mon, entry);
4638 /* Permit QAPI event emission from character frontend release */
4639 qemu_mutex_unlock(&monitor_lock);
4641 monitor_data_destroy(mon);
4642 qemu_mutex_lock(&monitor_lock);
4645 qemu_mutex_unlock(&monitor_lock);
4647 /* QEMUBHs needs to be deleted before destroying the I/O thread */
4648 qemu_bh_delete(qmp_dispatcher_bh);
4649 qmp_dispatcher_bh = NULL;
4651 iothread_destroy(mon_iothread);
4652 mon_iothread = NULL;
4656 QemuOptsList qemu_mon_opts = {
4658 .implied_opt_name = "chardev",
4659 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4663 .type = QEMU_OPT_STRING,
4666 .type = QEMU_OPT_STRING,
4669 .type = QEMU_OPT_BOOL,
4671 { /* end of list */ }
4676 void qmp_rtc_reset_reinjection(Error **errp)
4678 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4681 SevInfo *qmp_query_sev(Error **errp)
4683 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev");
4687 SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp)
4689 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-launch-measure");
4693 SevCapability *qmp_query_sev_capabilities(Error **errp)
4695 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-capabilities");
4700 #ifndef TARGET_S390X
4701 void qmp_dump_skeys(const char *filename, Error **errp)
4703 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4708 GICCapabilityList *qmp_query_gic_capabilities(Error **errp)
4710 error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities");
4715 HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
4717 MachineState *ms = MACHINE(qdev_get_machine());
4718 MachineClass *mc = MACHINE_GET_CLASS(ms);
4720 if (!mc->has_hotpluggable_cpus) {
4721 error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus");
4725 return machine_query_hotpluggable_cpus(ms);