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"
87 #if defined(TARGET_S390X)
88 #include "hw/s390x/storage-keys.h"
89 #include "hw/s390x/storage-attributes.h"
96 * 'B' block device name
97 * 's' string (accept optional quote)
98 * 'S' it just appends the rest of the string (accept optional quote)
99 * 'O' option string of the form NAME=VALUE,...
100 * parsed according to QemuOptsList given by its name
101 * Example: 'device:O' uses qemu_device_opts.
102 * Restriction: only lists with empty desc are supported
103 * TODO lift the restriction
105 * 'l' target long (32 or 64 bit)
106 * 'M' Non-negative target long (32 or 64 bit), in user mode the
107 * value is multiplied by 2^20 (think Mebibyte)
108 * 'o' octets (aka bytes)
109 * user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
110 * K, k suffix, which multiplies the value by 2^60 for suffixes E
111 * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
112 * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
114 * user mode accepts an optional ms, us, ns suffix,
115 * which divides the value by 1e3, 1e6, 1e9, respectively
116 * '/' optional gdb-like print format (like "/10x")
118 * '?' optional type (for all types, except '/')
119 * '.' other form of optional type (for 'i' and 'l')
121 * user mode accepts "on" or "off"
122 * '-' optional parameter (eg. '-f')
126 typedef struct mon_cmd_t {
128 const char *args_type;
131 const char *flags; /* p=preconfig */
132 void (*cmd)(Monitor *mon, const QDict *qdict);
133 /* @sub_table is a list of 2nd level of commands. If it does not exist,
134 * cmd should be used. If it exists, sub_table[?].cmd should be
135 * used, and cmd of 1st level plays the role of help function.
137 struct mon_cmd_t *sub_table;
138 void (*command_completion)(ReadLineState *rs, int nb_args, const char *str);
141 /* file descriptors passed via SCM_RIGHTS */
142 typedef struct mon_fd_t mon_fd_t;
146 QLIST_ENTRY(mon_fd_t) next;
149 /* file descriptor associated with a file descriptor set */
150 typedef struct MonFdsetFd MonFdsetFd;
155 QLIST_ENTRY(MonFdsetFd) next;
158 /* file descriptor set containing fds passed via SCM_RIGHTS */
159 typedef struct MonFdset MonFdset;
162 QLIST_HEAD(, MonFdsetFd) fds;
163 QLIST_HEAD(, MonFdsetFd) dup_fds;
164 QLIST_ENTRY(MonFdset) next;
168 JSONMessageParser parser;
170 * When a client connects, we're in capabilities negotiation mode.
171 * @commands is &qmp_cap_negotiation_commands then. When command
172 * qmp_capabilities succeeds, we go into command mode, and
173 * @command becomes &qmp_commands.
175 QmpCommandList *commands;
176 bool capab_offered[QMP_CAPABILITY__MAX]; /* capabilities offered */
177 bool capab[QMP_CAPABILITY__MAX]; /* offered and accepted */
179 * Protects qmp request/response queue.
180 * Take monitor_lock first when you need both.
182 QemuMutex qmp_queue_lock;
183 /* Input queue that holds all the parsed QMP requests */
184 GQueue *qmp_requests;
188 * To prevent flooding clients, events can be throttled. The
189 * throttling is calculated globally, rather than per-Monitor
192 typedef struct MonitorQAPIEventState {
193 QAPIEvent event; /* Throttling state for this event type and... */
194 QDict *data; /* ... data, see qapi_event_throttle_equal() */
195 QEMUTimer *timer; /* Timer for handling delayed events */
196 QDict *qdict; /* Delayed event (if any) */
197 } MonitorQAPIEventState;
200 int64_t rate; /* Minimum time (in ns) between two events */
201 } MonitorQAPIEventConf;
207 int suspend_cnt; /* Needs to be accessed atomically */
212 * State used only in the thread "owning" the monitor.
213 * If @use_io_thread, this is @mon_iothread.
214 * Else, it's the main thread.
215 * These members can be safely accessed without locks.
221 BlockCompletionFunc *password_completion_cb;
222 void *password_opaque;
223 mon_cmd_t *cmd_table;
224 QTAILQ_ENTRY(Monitor) entry;
227 * The per-monitor lock. We can't access guest memory when holding
233 * Members that are protected by the per-monitor lock
235 QLIST_HEAD(, mon_fd_t) fds;
238 /* Read under either BQL or mon_lock, written with BQL+mon_lock. */
242 /* Shared monitor I/O thread */
243 IOThread *mon_iothread;
245 /* Bottom half to dispatch the requests received from I/O thread */
246 QEMUBH *qmp_dispatcher_bh;
249 /* Owner of the request */
251 /* "id" field of the request */
254 * Request object to be handled or Error to be reported
255 * (exactly one of them is non-null)
260 typedef struct QMPRequest QMPRequest;
262 /* QMP checker flags */
263 #define QMP_ACCEPT_UNKNOWNS 1
265 /* Protects mon_list, monitor_qapi_event_state. */
266 static QemuMutex monitor_lock;
267 static GHashTable *monitor_qapi_event_state;
268 static QTAILQ_HEAD(mon_list, Monitor) mon_list;
270 /* Protects mon_fdsets */
271 static QemuMutex mon_fdsets_lock;
272 static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
274 static int mon_refcount;
276 static mon_cmd_t mon_cmds[];
277 static mon_cmd_t info_cmds[];
279 QmpCommandList qmp_commands, qmp_cap_negotiation_commands;
281 __thread Monitor *cur_mon;
283 static void monitor_command_cb(void *opaque, const char *cmdline,
284 void *readline_opaque);
287 * Is @mon a QMP monitor?
289 static inline bool monitor_is_qmp(const Monitor *mon)
291 return (mon->flags & MONITOR_USE_CONTROL);
295 * Is @mon is using readline?
296 * Note: not all HMP monitors use readline, e.g., gdbserver has a
297 * non-interactive HMP monitor, so readline is not used there.
299 static inline bool monitor_uses_readline(const Monitor *mon)
301 return mon->flags & MONITOR_USE_READLINE;
304 static inline bool monitor_is_hmp_non_interactive(const Monitor *mon)
306 return !monitor_is_qmp(mon) && !monitor_uses_readline(mon);
310 * Return the clock to use for recording an event's time.
311 * It's QEMU_CLOCK_REALTIME, except for qtests it's
312 * QEMU_CLOCK_VIRTUAL, to support testing rate limits.
313 * Beware: result is invalid before configure_accelerator().
315 static inline QEMUClockType monitor_get_event_clock(void)
317 return qtest_enabled() ? QEMU_CLOCK_VIRTUAL : QEMU_CLOCK_REALTIME;
321 * Is the current monitor, if any, a QMP monitor?
323 bool monitor_cur_is_qmp(void)
325 return cur_mon && monitor_is_qmp(cur_mon);
328 void monitor_read_command(Monitor *mon, int show_prompt)
333 readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
335 readline_show_prompt(mon->rs);
338 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
342 readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
343 /* prompt is printed on return from the command handler */
346 monitor_printf(mon, "terminal does not support password prompting\n");
351 static void qmp_request_free(QMPRequest *req)
353 qobject_unref(req->id);
354 qobject_unref(req->req);
355 error_free(req->err);
359 /* Caller must hold mon->qmp.qmp_queue_lock */
360 static void monitor_qmp_cleanup_req_queue_locked(Monitor *mon)
362 while (!g_queue_is_empty(mon->qmp.qmp_requests)) {
363 qmp_request_free(g_queue_pop_head(mon->qmp.qmp_requests));
367 static void monitor_qmp_cleanup_queues(Monitor *mon)
369 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
370 monitor_qmp_cleanup_req_queue_locked(mon);
371 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
375 static void monitor_flush_locked(Monitor *mon);
377 static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
380 Monitor *mon = opaque;
382 qemu_mutex_lock(&mon->mon_lock);
384 monitor_flush_locked(mon);
385 qemu_mutex_unlock(&mon->mon_lock);
389 /* Caller must hold mon->mon_lock */
390 static void monitor_flush_locked(Monitor *mon)
396 if (mon->skip_flush) {
400 buf = qstring_get_str(mon->outbuf);
401 len = qstring_get_length(mon->outbuf);
403 if (len && !mon->mux_out) {
404 rc = qemu_chr_fe_write(&mon->chr, (const uint8_t *) buf, len);
405 if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
406 /* all flushed or error */
407 qobject_unref(mon->outbuf);
408 mon->outbuf = qstring_new();
413 QString *tmp = qstring_from_str(buf + rc);
414 qobject_unref(mon->outbuf);
417 if (mon->out_watch == 0) {
419 qemu_chr_fe_add_watch(&mon->chr, G_IO_OUT | G_IO_HUP,
420 monitor_unblocked, mon);
425 void monitor_flush(Monitor *mon)
427 qemu_mutex_lock(&mon->mon_lock);
428 monitor_flush_locked(mon);
429 qemu_mutex_unlock(&mon->mon_lock);
432 /* flush at every end of line */
433 static void monitor_puts(Monitor *mon, const char *str)
437 qemu_mutex_lock(&mon->mon_lock);
443 qstring_append_chr(mon->outbuf, '\r');
445 qstring_append_chr(mon->outbuf, c);
447 monitor_flush_locked(mon);
450 qemu_mutex_unlock(&mon->mon_lock);
453 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
460 if (monitor_is_qmp(mon)) {
464 buf = g_strdup_vprintf(fmt, ap);
465 monitor_puts(mon, buf);
469 void monitor_printf(Monitor *mon, const char *fmt, ...)
473 monitor_vprintf(mon, fmt, ap);
477 int monitor_fprintf(FILE *stream, const char *fmt, ...)
481 monitor_vprintf((Monitor *)stream, fmt, ap);
486 static void qmp_send_response(Monitor *mon, const QDict *rsp)
488 const QObject *data = QOBJECT(rsp);
491 json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
492 qobject_to_json(data);
493 assert(json != NULL);
495 qstring_append_chr(json, '\n');
496 monitor_puts(mon, qstring_get_str(json));
501 static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = {
502 /* Limit guest-triggerable events to 1 per second */
503 [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
504 [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
505 [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
506 [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
507 [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
508 [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
512 * Broadcast an event to all monitors.
513 * @qdict is the event object. Its member "event" must match @event.
514 * Caller must hold monitor_lock.
516 static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
520 trace_monitor_protocol_event_emit(event, qdict);
521 QTAILQ_FOREACH(mon, &mon_list, entry) {
522 if (monitor_is_qmp(mon)
523 && mon->qmp.commands != &qmp_cap_negotiation_commands) {
524 qmp_send_response(mon, qdict);
529 static void monitor_qapi_event_handler(void *opaque);
532 * Queue a new event for emission to Monitor instances,
533 * applying any rate limiting if required.
536 monitor_qapi_event_queue_no_reenter(QAPIEvent event, QDict *qdict)
538 MonitorQAPIEventConf *evconf;
539 MonitorQAPIEventState *evstate;
541 assert(event < QAPI_EVENT__MAX);
542 evconf = &monitor_qapi_event_conf[event];
543 trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
545 qemu_mutex_lock(&monitor_lock);
548 /* Unthrottled event */
549 monitor_qapi_event_emit(event, qdict);
551 QDict *data = qobject_to(QDict, qdict_get(qdict, "data"));
552 MonitorQAPIEventState key = { .event = event, .data = data };
554 evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
555 assert(!evstate || timer_pending(evstate->timer));
559 * Timer is pending for (at least) evconf->rate ns after
560 * last send. Store event for sending when timer fires,
561 * replacing a prior stored event if any.
563 qobject_unref(evstate->qdict);
564 evstate->qdict = qobject_ref(qdict);
567 * Last send was (at least) evconf->rate ns ago.
568 * Send immediately, and arm the timer to call
569 * monitor_qapi_event_handler() in evconf->rate ns. Any
570 * events arriving before then will be delayed until then.
572 int64_t now = qemu_clock_get_ns(monitor_get_event_clock());
574 monitor_qapi_event_emit(event, qdict);
576 evstate = g_new(MonitorQAPIEventState, 1);
577 evstate->event = event;
578 evstate->data = qobject_ref(data);
579 evstate->qdict = NULL;
580 evstate->timer = timer_new_ns(monitor_get_event_clock(),
581 monitor_qapi_event_handler,
583 g_hash_table_add(monitor_qapi_event_state, evstate);
584 timer_mod_ns(evstate->timer, now + evconf->rate);
588 qemu_mutex_unlock(&monitor_lock);
592 monitor_qapi_event_queue(QAPIEvent event, QDict *qdict)
595 * monitor_qapi_event_queue_no_reenter() is not reentrant: it
596 * would deadlock on monitor_lock. Work around by queueing
597 * events in thread-local storage.
598 * TODO: remove this, make it re-enter safe.
600 typedef struct MonitorQapiEvent {
603 QSIMPLEQ_ENTRY(MonitorQapiEvent) entry;
605 static __thread QSIMPLEQ_HEAD(, MonitorQapiEvent) event_queue;
606 static __thread bool reentered;
607 MonitorQapiEvent *ev;
610 QSIMPLEQ_INIT(&event_queue);
613 ev = g_new(MonitorQapiEvent, 1);
614 ev->qdict = qobject_ref(qdict);
616 QSIMPLEQ_INSERT_TAIL(&event_queue, ev, entry);
623 while ((ev = QSIMPLEQ_FIRST(&event_queue)) != NULL) {
624 QSIMPLEQ_REMOVE_HEAD(&event_queue, entry);
625 monitor_qapi_event_queue_no_reenter(ev->event, ev->qdict);
626 qobject_unref(ev->qdict);
634 * This function runs evconf->rate ns after sending a throttled
636 * If another event has since been stored, send it.
638 static void monitor_qapi_event_handler(void *opaque)
640 MonitorQAPIEventState *evstate = opaque;
641 MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
643 trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
644 qemu_mutex_lock(&monitor_lock);
646 if (evstate->qdict) {
647 int64_t now = qemu_clock_get_ns(monitor_get_event_clock());
649 monitor_qapi_event_emit(evstate->event, evstate->qdict);
650 qobject_unref(evstate->qdict);
651 evstate->qdict = NULL;
652 timer_mod_ns(evstate->timer, now + evconf->rate);
654 g_hash_table_remove(monitor_qapi_event_state, evstate);
655 qobject_unref(evstate->data);
656 timer_free(evstate->timer);
660 qemu_mutex_unlock(&monitor_lock);
663 static unsigned int qapi_event_throttle_hash(const void *key)
665 const MonitorQAPIEventState *evstate = key;
666 unsigned int hash = evstate->event * 255;
668 if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
669 hash += g_str_hash(qdict_get_str(evstate->data, "id"));
672 if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
673 hash += g_str_hash(qdict_get_str(evstate->data, "node-name"));
679 static gboolean qapi_event_throttle_equal(const void *a, const void *b)
681 const MonitorQAPIEventState *eva = a;
682 const MonitorQAPIEventState *evb = b;
684 if (eva->event != evb->event) {
688 if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
689 return !strcmp(qdict_get_str(eva->data, "id"),
690 qdict_get_str(evb->data, "id"));
693 if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
694 return !strcmp(qdict_get_str(eva->data, "node-name"),
695 qdict_get_str(evb->data, "node-name"));
701 static void monitor_qapi_event_init(void)
703 monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
704 qapi_event_throttle_equal);
705 qmp_event_set_func_emit(monitor_qapi_event_queue);
708 static void handle_hmp_command(Monitor *mon, const char *cmdline);
710 static void monitor_data_init(Monitor *mon, bool skip_flush,
713 memset(mon, 0, sizeof(Monitor));
714 qemu_mutex_init(&mon->mon_lock);
715 qemu_mutex_init(&mon->qmp.qmp_queue_lock);
716 mon->outbuf = qstring_new();
717 /* Use *mon_cmds by default. */
718 mon->cmd_table = mon_cmds;
719 mon->skip_flush = skip_flush;
720 mon->use_io_thread = use_io_thread;
721 mon->qmp.qmp_requests = g_queue_new();
724 static void monitor_data_destroy(Monitor *mon)
726 g_free(mon->mon_cpu_path);
727 qemu_chr_fe_deinit(&mon->chr, false);
728 if (monitor_is_qmp(mon)) {
729 json_message_parser_destroy(&mon->qmp.parser);
731 readline_free(mon->rs);
732 qobject_unref(mon->outbuf);
733 qemu_mutex_destroy(&mon->mon_lock);
734 qemu_mutex_destroy(&mon->qmp.qmp_queue_lock);
735 monitor_qmp_cleanup_req_queue_locked(mon);
736 g_queue_free(mon->qmp.qmp_requests);
739 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
740 int64_t cpu_index, Error **errp)
743 Monitor *old_mon, hmp;
745 monitor_data_init(&hmp, true, false);
751 int ret = monitor_set_cpu(cpu_index);
754 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
760 handle_hmp_command(&hmp, command_line);
763 qemu_mutex_lock(&hmp.mon_lock);
764 if (qstring_get_length(hmp.outbuf) > 0) {
765 output = g_strdup(qstring_get_str(hmp.outbuf));
767 output = g_strdup("");
769 qemu_mutex_unlock(&hmp.mon_lock);
772 monitor_data_destroy(&hmp);
776 static int compare_cmd(const char *name, const char *list)
778 const char *p, *pstart;
784 p = qemu_strchrnul(p, '|');
785 if ((p - pstart) == len && !memcmp(pstart, name, len))
794 static int get_str(char *buf, int buf_size, const char **pp)
802 while (qemu_isspace(*p)) {
813 while (*p != '\0' && *p != '\"') {
829 printf("unsupported escape code: '\\%c'\n", c);
832 if ((q - buf) < buf_size - 1) {
836 if ((q - buf) < buf_size - 1) {
843 printf("unterminated string\n");
848 while (*p != '\0' && !qemu_isspace(*p)) {
849 if ((q - buf) < buf_size - 1) {
862 static void free_cmdline_args(char **args, int nb_args)
866 assert(nb_args <= MAX_ARGS);
868 for (i = 0; i < nb_args; i++) {
875 * Parse the command line to get valid args.
876 * @cmdline: command line to be parsed.
877 * @pnb_args: location to store the number of args, must NOT be NULL.
878 * @args: location to store the args, which should be freed by caller, must
881 * Returns 0 on success, negative on failure.
883 * NOTE: this parser is an approximate form of the real command parser. Number
884 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
885 * return with failure.
887 static int parse_cmdline(const char *cmdline,
888 int *pnb_args, char **args)
897 while (qemu_isspace(*p)) {
903 if (nb_args >= MAX_ARGS) {
906 ret = get_str(buf, sizeof(buf), &p);
910 args[nb_args] = g_strdup(buf);
917 free_cmdline_args(args, nb_args);
922 * Can command @cmd be executed in preconfig state?
924 static bool cmd_can_preconfig(const mon_cmd_t *cmd)
930 return strchr(cmd->flags, 'p');
933 static void help_cmd_dump_one(Monitor *mon,
934 const mon_cmd_t *cmd,
940 if (runstate_check(RUN_STATE_PRECONFIG) && !cmd_can_preconfig(cmd)) {
944 for (i = 0; i < prefix_args_nb; i++) {
945 monitor_printf(mon, "%s ", prefix_args[i]);
947 monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
950 /* @args[@arg_index] is the valid command need to find in @cmds */
951 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
952 char **args, int nb_args, int arg_index)
954 const mon_cmd_t *cmd;
957 /* No valid arg need to compare with, dump all in *cmds */
958 if (arg_index >= nb_args) {
959 for (cmd = cmds; cmd->name != NULL; cmd++) {
960 help_cmd_dump_one(mon, cmd, args, arg_index);
965 /* Find one entry to dump */
966 for (cmd = cmds; cmd->name != NULL; cmd++) {
967 if (compare_cmd(args[arg_index], cmd->name) &&
968 ((!runstate_check(RUN_STATE_PRECONFIG) ||
969 cmd_can_preconfig(cmd)))) {
970 if (cmd->sub_table) {
971 /* continue with next arg */
972 help_cmd_dump(mon, cmd->sub_table,
973 args, nb_args, arg_index + 1);
975 help_cmd_dump_one(mon, cmd, args, arg_index);
981 /* Command not found */
982 monitor_printf(mon, "unknown command: '");
983 for (i = 0; i <= arg_index; i++) {
984 monitor_printf(mon, "%s%s", args[i], i == arg_index ? "'\n" : " ");
988 static void help_cmd(Monitor *mon, const char *name)
990 char *args[MAX_ARGS];
993 /* 1. parse user input */
995 /* special case for log, directly dump and return */
996 if (!strcmp(name, "log")) {
997 const QEMULogItem *item;
998 monitor_printf(mon, "Log items (comma separated):\n");
999 monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
1000 for (item = qemu_log_items; item->mask != 0; item++) {
1001 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
1006 if (parse_cmdline(name, &nb_args, args) < 0) {
1011 /* 2. dump the contents according to parsed args */
1012 help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
1014 free_cmdline_args(args, nb_args);
1017 static void do_help_cmd(Monitor *mon, const QDict *qdict)
1019 help_cmd(mon, qdict_get_try_str(qdict, "name"));
1022 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
1024 const char *tp_name = qdict_get_str(qdict, "name");
1025 bool new_state = qdict_get_bool(qdict, "option");
1026 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1027 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1028 Error *local_err = NULL;
1031 monitor_printf(mon, "argument vcpu must be positive");
1035 qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err);
1037 error_report_err(local_err);
1041 #ifdef CONFIG_TRACE_SIMPLE
1042 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
1044 const char *op = qdict_get_try_str(qdict, "op");
1045 const char *arg = qdict_get_try_str(qdict, "arg");
1048 st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
1049 } else if (!strcmp(op, "on")) {
1050 st_set_trace_file_enabled(true);
1051 } else if (!strcmp(op, "off")) {
1052 st_set_trace_file_enabled(false);
1053 } else if (!strcmp(op, "flush")) {
1054 st_flush_trace_buffer();
1055 } else if (!strcmp(op, "set")) {
1057 st_set_trace_file(arg);
1060 monitor_printf(mon, "unexpected argument \"%s\"\n", op);
1061 help_cmd(mon, "trace-file");
1066 static void hmp_info_help(Monitor *mon, const QDict *qdict)
1068 help_cmd(mon, "info");
1071 static void query_commands_cb(QmpCommand *cmd, void *opaque)
1073 CommandInfoList *info, **list = opaque;
1075 if (!cmd->enabled) {
1079 info = g_malloc0(sizeof(*info));
1080 info->value = g_malloc0(sizeof(*info->value));
1081 info->value->name = g_strdup(cmd->name);
1086 CommandInfoList *qmp_query_commands(Error **errp)
1088 CommandInfoList *list = NULL;
1090 qmp_for_each_command(cur_mon->qmp.commands, query_commands_cb, &list);
1095 EventInfoList *qmp_query_events(Error **errp)
1097 EventInfoList *info, *ev_list = NULL;
1100 for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
1101 const char *event_name = QAPIEvent_str(e);
1102 assert(event_name != NULL);
1103 info = g_malloc0(sizeof(*info));
1104 info->value = g_malloc0(sizeof(*info->value));
1105 info->value->name = g_strdup(event_name);
1107 info->next = ev_list;
1115 * Minor hack: generated marshalling suppressed for this command
1116 * ('gen': false in the schema) so we can parse the JSON string
1117 * directly into QObject instead of first parsing it with
1118 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
1119 * to QObject with generated output marshallers, every time. Instead,
1120 * we do it in test-qobject-input-visitor.c, just to make sure
1121 * qapi-gen.py's output actually conforms to the schema.
1123 static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
1126 *ret_data = qobject_from_qlit(&qmp_schema_qlit);
1130 * We used to define commands in qmp-commands.hx in addition to the
1131 * QAPI schema. This permitted defining some of them only in certain
1132 * configurations. query-commands has always reflected that (good,
1133 * because it lets QMP clients figure out what's actually available),
1134 * while query-qmp-schema never did (not so good). This function is a
1135 * hack to keep the configuration-specific commands defined exactly as
1136 * before, even though qmp-commands.hx is gone.
1138 * FIXME Educate the QAPI schema on configuration-specific commands,
1139 * and drop this hack.
1141 static void qmp_unregister_commands_hack(void)
1143 #ifndef CONFIG_REPLICATION
1144 qmp_unregister_command(&qmp_commands, "xen-set-replication");
1145 qmp_unregister_command(&qmp_commands, "query-xen-replication-status");
1146 qmp_unregister_command(&qmp_commands, "xen-colo-do-checkpoint");
1149 qmp_unregister_command(&qmp_commands, "rtc-reset-reinjection");
1150 qmp_unregister_command(&qmp_commands, "query-sev");
1151 qmp_unregister_command(&qmp_commands, "query-sev-launch-measure");
1152 qmp_unregister_command(&qmp_commands, "query-sev-capabilities");
1154 #ifndef TARGET_S390X
1155 qmp_unregister_command(&qmp_commands, "dump-skeys");
1158 qmp_unregister_command(&qmp_commands, "query-gic-capabilities");
1160 #if !defined(TARGET_S390X) && !defined(TARGET_I386)
1161 qmp_unregister_command(&qmp_commands, "query-cpu-model-expansion");
1163 #if !defined(TARGET_S390X)
1164 qmp_unregister_command(&qmp_commands, "query-cpu-model-baseline");
1165 qmp_unregister_command(&qmp_commands, "query-cpu-model-comparison");
1167 #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
1168 && !defined(TARGET_S390X)
1169 qmp_unregister_command(&qmp_commands, "query-cpu-definitions");
1173 static void monitor_init_qmp_commands(void)
1176 * Two command lists:
1177 * - qmp_commands contains all QMP commands
1178 * - qmp_cap_negotiation_commands contains just
1179 * "qmp_capabilities", to enforce capability negotiation
1182 qmp_init_marshal(&qmp_commands);
1184 qmp_register_command(&qmp_commands, "query-qmp-schema",
1185 qmp_query_qmp_schema, QCO_ALLOW_PRECONFIG);
1186 qmp_register_command(&qmp_commands, "device_add", qmp_device_add,
1188 qmp_register_command(&qmp_commands, "netdev_add", qmp_netdev_add,
1191 qmp_unregister_commands_hack();
1193 QTAILQ_INIT(&qmp_cap_negotiation_commands);
1194 qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
1195 qmp_marshal_qmp_capabilities, QCO_ALLOW_PRECONFIG);
1198 static bool qmp_oob_enabled(Monitor *mon)
1200 return mon->qmp.capab[QMP_CAPABILITY_OOB];
1203 static void monitor_qmp_caps_reset(Monitor *mon)
1205 memset(mon->qmp.capab_offered, 0, sizeof(mon->qmp.capab_offered));
1206 memset(mon->qmp.capab, 0, sizeof(mon->qmp.capab));
1207 mon->qmp.capab_offered[QMP_CAPABILITY_OOB] = mon->use_io_thread;
1211 * Accept QMP capabilities in @list for @mon.
1212 * On success, set mon->qmp.capab[], and return true.
1213 * On error, set @errp, and return false.
1215 static bool qmp_caps_accept(Monitor *mon, QMPCapabilityList *list,
1218 GString *unavailable = NULL;
1219 bool capab[QMP_CAPABILITY__MAX];
1221 memset(capab, 0, sizeof(capab));
1223 for (; list; list = list->next) {
1224 if (!mon->qmp.capab_offered[list->value]) {
1226 unavailable = g_string_new(QMPCapability_str(list->value));
1228 g_string_append_printf(unavailable, ", %s",
1229 QMPCapability_str(list->value));
1232 capab[list->value] = true;
1236 error_setg(errp, "Capability %s not available", unavailable->str);
1237 g_string_free(unavailable, true);
1241 memcpy(mon->qmp.capab, capab, sizeof(capab));
1245 void qmp_qmp_capabilities(bool has_enable, QMPCapabilityList *enable,
1248 if (cur_mon->qmp.commands == &qmp_commands) {
1249 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
1250 "Capabilities negotiation is already complete, command "
1255 if (!qmp_caps_accept(cur_mon, enable, errp)) {
1259 cur_mon->qmp.commands = &qmp_commands;
1262 /* Set the current CPU defined by the user. Callers must hold BQL. */
1263 int monitor_set_cpu(int cpu_index)
1267 cpu = qemu_get_cpu(cpu_index);
1271 g_free(cur_mon->mon_cpu_path);
1272 cur_mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu));
1276 /* Callers must hold BQL. */
1277 static CPUState *mon_get_cpu_sync(bool synchronize)
1281 if (cur_mon->mon_cpu_path) {
1282 cpu = (CPUState *) object_resolve_path_type(cur_mon->mon_cpu_path,
1285 g_free(cur_mon->mon_cpu_path);
1286 cur_mon->mon_cpu_path = NULL;
1289 if (!cur_mon->mon_cpu_path) {
1293 monitor_set_cpu(first_cpu->cpu_index);
1297 cpu_synchronize_state(cpu);
1302 CPUState *mon_get_cpu(void)
1304 return mon_get_cpu_sync(true);
1307 CPUArchState *mon_get_cpu_env(void)
1309 CPUState *cs = mon_get_cpu();
1311 return cs ? cs->env_ptr : NULL;
1314 int monitor_get_cpu_index(void)
1316 CPUState *cs = mon_get_cpu_sync(false);
1318 return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX;
1321 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
1323 bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false);
1328 monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index);
1329 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1335 monitor_printf(mon, "No CPU available\n");
1339 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1344 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
1346 if (!tcg_enabled()) {
1347 error_report("JIT information is only available with accel=tcg");
1351 dump_exec_info((FILE *)mon, monitor_fprintf);
1352 dump_drift_info((FILE *)mon, monitor_fprintf);
1355 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
1357 dump_opcount_info((FILE *)mon, monitor_fprintf);
1361 static void hmp_info_sync_profile(Monitor *mon, const QDict *qdict)
1363 int64_t max = qdict_get_try_int(qdict, "max", 10);
1364 bool mean = qdict_get_try_bool(qdict, "mean", false);
1365 bool coalesce = !qdict_get_try_bool(qdict, "no_coalesce", false);
1366 enum QSPSortBy sort_by;
1368 sort_by = mean ? QSP_SORT_BY_AVG_WAIT_TIME : QSP_SORT_BY_TOTAL_WAIT_TIME;
1369 qsp_report((FILE *)mon, monitor_fprintf, max, sort_by, coalesce);
1372 static void hmp_info_history(Monitor *mon, const QDict *qdict)
1381 str = readline_get_history(mon->rs, i);
1384 monitor_printf(mon, "%d: '%s'\n", i, str);
1389 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
1391 CPUState *cs = mon_get_cpu();
1394 monitor_printf(mon, "No CPU available\n");
1397 cpu_dump_statistics(cs, (FILE *)mon, &monitor_fprintf, 0);
1400 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
1402 const char *name = qdict_get_try_str(qdict, "name");
1403 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1404 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1405 TraceEventInfoList *events;
1406 TraceEventInfoList *elem;
1407 Error *local_err = NULL;
1413 monitor_printf(mon, "argument vcpu must be positive");
1417 events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err);
1419 error_report_err(local_err);
1423 for (elem = events; elem != NULL; elem = elem->next) {
1424 monitor_printf(mon, "%s : state %u\n",
1426 elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
1428 qapi_free_TraceEventInfoList(events);
1431 void qmp_client_migrate_info(const char *protocol, const char *hostname,
1432 bool has_port, int64_t port,
1433 bool has_tls_port, int64_t tls_port,
1434 bool has_cert_subject, const char *cert_subject,
1437 if (strcmp(protocol, "spice") == 0) {
1438 if (!qemu_using_spice(errp)) {
1442 if (!has_port && !has_tls_port) {
1443 error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
1447 if (qemu_spice_migrate_info(hostname,
1448 has_port ? port : -1,
1449 has_tls_port ? tls_port : -1,
1451 error_setg(errp, QERR_UNDEFINED_ERROR);
1457 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
1460 static void hmp_logfile(Monitor *mon, const QDict *qdict)
1464 qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
1466 error_report_err(err);
1470 static void hmp_log(Monitor *mon, const QDict *qdict)
1473 const char *items = qdict_get_str(qdict, "items");
1475 if (!strcmp(items, "none")) {
1478 mask = qemu_str_to_log_mask(items);
1480 help_cmd(mon, "log");
1487 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
1489 const char *option = qdict_get_try_str(qdict, "option");
1490 if (!option || !strcmp(option, "on")) {
1492 } else if (!strcmp(option, "off")) {
1495 monitor_printf(mon, "unexpected option %s\n", option);
1499 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
1501 const char *device = qdict_get_try_str(qdict, "device");
1503 device = "tcp::" DEFAULT_GDBSTUB_PORT;
1504 if (gdbserver_start(device) < 0) {
1505 monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1507 } else if (strcmp(device, "none") == 0) {
1508 monitor_printf(mon, "Disabled gdbserver\n");
1510 monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1515 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
1517 const char *action = qdict_get_str(qdict, "action");
1518 if (select_watchdog_action(action) == -1) {
1519 monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1523 static void monitor_printc(Monitor *mon, int c)
1525 monitor_printf(mon, "'");
1528 monitor_printf(mon, "\\'");
1531 monitor_printf(mon, "\\\\");
1534 monitor_printf(mon, "\\n");
1537 monitor_printf(mon, "\\r");
1540 if (c >= 32 && c <= 126) {
1541 monitor_printf(mon, "%c", c);
1543 monitor_printf(mon, "\\x%02x", c);
1547 monitor_printf(mon, "'");
1550 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1551 hwaddr addr, int is_physical)
1553 int l, line_size, i, max_digits, len;
1556 CPUState *cs = mon_get_cpu();
1558 if (!cs && (format == 'i' || !is_physical)) {
1559 monitor_printf(mon, "Can not dump without CPU\n");
1563 if (format == 'i') {
1564 monitor_disas(mon, cs, addr, count, is_physical);
1568 len = wsize * count;
1577 max_digits = DIV_ROUND_UP(wsize * 8, 3);
1581 max_digits = (wsize * 8) / 4;
1585 max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33);
1594 monitor_printf(mon, TARGET_FMT_plx ":", addr);
1596 monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1601 cpu_physical_memory_read(addr, buf, l);
1603 if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) {
1604 monitor_printf(mon, " Cannot access memory\n");
1613 v = ldub_p(buf + i);
1616 v = lduw_p(buf + i);
1619 v = (uint32_t)ldl_p(buf + i);
1625 monitor_printf(mon, " ");
1628 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1631 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1634 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1637 monitor_printf(mon, "%*" PRId64, max_digits, v);
1640 monitor_printc(mon, v);
1645 monitor_printf(mon, "\n");
1651 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
1653 int count = qdict_get_int(qdict, "count");
1654 int format = qdict_get_int(qdict, "format");
1655 int size = qdict_get_int(qdict, "size");
1656 target_long addr = qdict_get_int(qdict, "addr");
1658 memory_dump(mon, count, format, size, addr, 0);
1661 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
1663 int count = qdict_get_int(qdict, "count");
1664 int format = qdict_get_int(qdict, "format");
1665 int size = qdict_get_int(qdict, "size");
1666 hwaddr addr = qdict_get_int(qdict, "addr");
1668 memory_dump(mon, count, format, size, addr, 1);
1671 static void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, Error **errp)
1673 MemoryRegionSection mrs = memory_region_find(get_system_memory(),
1677 error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr);
1681 if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) {
1682 error_setg(errp, "Memory at address 0x%" HWADDR_PRIx "is not RAM", addr);
1683 memory_region_unref(mrs.mr);
1688 return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region);
1691 static void hmp_gpa2hva(Monitor *mon, const QDict *qdict)
1693 hwaddr addr = qdict_get_int(qdict, "addr");
1694 Error *local_err = NULL;
1695 MemoryRegion *mr = NULL;
1698 ptr = gpa2hva(&mr, addr, &local_err);
1700 error_report_err(local_err);
1704 monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx
1706 addr, mr->name, ptr);
1708 memory_region_unref(mr);
1712 static uint64_t vtop(void *ptr, Error **errp)
1716 uintptr_t addr = (uintptr_t) ptr;
1717 uintptr_t pagesize = getpagesize();
1718 off_t offset = addr / pagesize * sizeof(pinfo);
1721 fd = open("/proc/self/pagemap", O_RDONLY);
1723 error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap");
1727 /* Force copy-on-write if necessary. */
1728 atomic_add((uint8_t *)ptr, 0);
1730 if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) {
1731 error_setg_errno(errp, errno, "Cannot read pagemap");
1734 if ((pinfo & (1ull << 63)) == 0) {
1735 error_setg(errp, "Page not present");
1738 ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1));
1745 static void hmp_gpa2hpa(Monitor *mon, const QDict *qdict)
1747 hwaddr addr = qdict_get_int(qdict, "addr");
1748 Error *local_err = NULL;
1749 MemoryRegion *mr = NULL;
1753 ptr = gpa2hva(&mr, addr, &local_err);
1755 error_report_err(local_err);
1759 physaddr = vtop(ptr, &local_err);
1761 error_report_err(local_err);
1763 monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx
1764 " (%s) is 0x%" PRIx64 "\n",
1765 addr, mr->name, (uint64_t) physaddr);
1768 memory_region_unref(mr);
1772 static void do_print(Monitor *mon, const QDict *qdict)
1774 int format = qdict_get_int(qdict, "format");
1775 hwaddr val = qdict_get_int(qdict, "val");
1779 monitor_printf(mon, "%#" HWADDR_PRIo, val);
1782 monitor_printf(mon, "%#" HWADDR_PRIx, val);
1785 monitor_printf(mon, "%" HWADDR_PRIu, val);
1789 monitor_printf(mon, "%" HWADDR_PRId, val);
1792 monitor_printc(mon, val);
1795 monitor_printf(mon, "\n");
1798 static void hmp_sum(Monitor *mon, const QDict *qdict)
1802 uint32_t start = qdict_get_int(qdict, "start");
1803 uint32_t size = qdict_get_int(qdict, "size");
1806 for(addr = start; addr < (start + size); addr++) {
1807 uint8_t val = address_space_ldub(&address_space_memory, addr,
1808 MEMTXATTRS_UNSPECIFIED, NULL);
1809 /* BSD sum algorithm ('sum' Unix command) */
1810 sum = (sum >> 1) | (sum << 15);
1813 monitor_printf(mon, "%05d\n", sum);
1816 static int mouse_button_state;
1818 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
1820 int dx, dy, dz, button;
1821 const char *dx_str = qdict_get_str(qdict, "dx_str");
1822 const char *dy_str = qdict_get_str(qdict, "dy_str");
1823 const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1825 dx = strtol(dx_str, NULL, 0);
1826 dy = strtol(dy_str, NULL, 0);
1827 qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
1828 qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
1831 dz = strtol(dz_str, NULL, 0);
1833 button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
1834 qemu_input_queue_btn(NULL, button, true);
1835 qemu_input_event_sync();
1836 qemu_input_queue_btn(NULL, button, false);
1839 qemu_input_event_sync();
1842 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
1844 static uint32_t bmap[INPUT_BUTTON__MAX] = {
1845 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
1846 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
1847 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
1849 int button_state = qdict_get_int(qdict, "button_state");
1851 if (mouse_button_state == button_state) {
1854 qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
1855 qemu_input_event_sync();
1856 mouse_button_state = button_state;
1859 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
1861 int size = qdict_get_int(qdict, "size");
1862 int addr = qdict_get_int(qdict, "addr");
1863 int has_index = qdict_haskey(qdict, "index");
1868 int index = qdict_get_int(qdict, "index");
1869 cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1877 val = cpu_inb(addr);
1881 val = cpu_inw(addr);
1885 val = cpu_inl(addr);
1889 monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1890 suffix, addr, size * 2, val);
1893 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
1895 int size = qdict_get_int(qdict, "size");
1896 int addr = qdict_get_int(qdict, "addr");
1897 int val = qdict_get_int(qdict, "val");
1899 addr &= IOPORTS_MASK;
1904 cpu_outb(addr, val);
1907 cpu_outw(addr, val);
1910 cpu_outl(addr, val);
1915 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
1917 Error *local_err = NULL;
1918 const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1920 qemu_boot_set(bootdevice, &local_err);
1922 error_report_err(local_err);
1924 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1928 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1930 bool flatview = qdict_get_try_bool(qdict, "flatview", false);
1931 bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
1932 bool owner = qdict_get_try_bool(qdict, "owner", false);
1934 mtree_info((fprintf_function)monitor_printf, mon, flatview, dispatch_tree,
1938 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1941 NumaNodeMem *node_mem;
1942 CpuInfoList *cpu_list, *cpu;
1944 cpu_list = qmp_query_cpus(&error_abort);
1945 node_mem = g_new0(NumaNodeMem, nb_numa_nodes);
1947 query_numa_node_mem(node_mem);
1948 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1949 for (i = 0; i < nb_numa_nodes; i++) {
1950 monitor_printf(mon, "node %d cpus:", i);
1951 for (cpu = cpu_list; cpu; cpu = cpu->next) {
1952 if (cpu->value->has_props && cpu->value->props->has_node_id &&
1953 cpu->value->props->node_id == i) {
1954 monitor_printf(mon, " %" PRIi64, cpu->value->CPU);
1957 monitor_printf(mon, "\n");
1958 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1959 node_mem[i].node_mem >> 20);
1960 monitor_printf(mon, "node %d plugged: %" PRId64 " MB\n", i,
1961 node_mem[i].node_plugged_mem >> 20);
1963 qapi_free_CpuInfoList(cpu_list);
1967 #ifdef CONFIG_PROFILER
1972 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1974 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
1975 dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
1976 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
1977 tcg_time, tcg_time / (double)NANOSECONDS_PER_SECOND);
1982 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1984 monitor_printf(mon, "Internal profiler not compiled\n");
1988 /* Capture support */
1989 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
1991 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
1996 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1997 monitor_printf(mon, "[%d]: ", i);
1998 s->ops.info (s->opaque);
2002 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
2005 int n = qdict_get_int(qdict, "n");
2008 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2010 s->ops.destroy (s->opaque);
2011 QLIST_REMOVE (s, entries);
2018 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
2020 const char *path = qdict_get_str(qdict, "path");
2021 int has_freq = qdict_haskey(qdict, "freq");
2022 int freq = qdict_get_try_int(qdict, "freq", -1);
2023 int has_bits = qdict_haskey(qdict, "bits");
2024 int bits = qdict_get_try_int(qdict, "bits", -1);
2025 int has_channels = qdict_haskey(qdict, "nchannels");
2026 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2029 s = g_malloc0 (sizeof (*s));
2031 freq = has_freq ? freq : 44100;
2032 bits = has_bits ? bits : 16;
2033 nchannels = has_channels ? nchannels : 2;
2035 if (wav_start_capture (s, path, freq, bits, nchannels)) {
2036 monitor_printf(mon, "Failed to add wave capture\n");
2040 QLIST_INSERT_HEAD (&capture_head, s, entries);
2043 static qemu_acl *find_acl(Monitor *mon, const char *name)
2045 qemu_acl *acl = qemu_acl_find(name);
2048 monitor_printf(mon, "acl: unknown list '%s'\n", name);
2053 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
2055 const char *aclname = qdict_get_str(qdict, "aclname");
2056 qemu_acl *acl = find_acl(mon, aclname);
2057 qemu_acl_entry *entry;
2061 monitor_printf(mon, "policy: %s\n",
2062 acl->defaultDeny ? "deny" : "allow");
2063 QTAILQ_FOREACH(entry, &acl->entries, next) {
2065 monitor_printf(mon, "%d: %s %s\n", i,
2066 entry->deny ? "deny" : "allow", entry->match);
2071 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
2073 const char *aclname = qdict_get_str(qdict, "aclname");
2074 qemu_acl *acl = find_acl(mon, aclname);
2077 qemu_acl_reset(acl);
2078 monitor_printf(mon, "acl: removed all rules\n");
2082 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
2084 const char *aclname = qdict_get_str(qdict, "aclname");
2085 const char *policy = qdict_get_str(qdict, "policy");
2086 qemu_acl *acl = find_acl(mon, aclname);
2089 if (strcmp(policy, "allow") == 0) {
2090 acl->defaultDeny = 0;
2091 monitor_printf(mon, "acl: policy set to 'allow'\n");
2092 } else if (strcmp(policy, "deny") == 0) {
2093 acl->defaultDeny = 1;
2094 monitor_printf(mon, "acl: policy set to 'deny'\n");
2096 monitor_printf(mon, "acl: unknown policy '%s', "
2097 "expected 'deny' or 'allow'\n", policy);
2102 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
2104 const char *aclname = qdict_get_str(qdict, "aclname");
2105 const char *match = qdict_get_str(qdict, "match");
2106 const char *policy = qdict_get_str(qdict, "policy");
2107 int has_index = qdict_haskey(qdict, "index");
2108 int index = qdict_get_try_int(qdict, "index", -1);
2109 qemu_acl *acl = find_acl(mon, aclname);
2113 if (strcmp(policy, "allow") == 0) {
2115 } else if (strcmp(policy, "deny") == 0) {
2118 monitor_printf(mon, "acl: unknown policy '%s', "
2119 "expected 'deny' or 'allow'\n", policy);
2123 ret = qemu_acl_insert(acl, deny, match, index);
2125 ret = qemu_acl_append(acl, deny, match);
2127 monitor_printf(mon, "acl: unable to add acl entry\n");
2129 monitor_printf(mon, "acl: added rule at position %d\n", ret);
2133 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
2135 const char *aclname = qdict_get_str(qdict, "aclname");
2136 const char *match = qdict_get_str(qdict, "match");
2137 qemu_acl *acl = find_acl(mon, aclname);
2141 ret = qemu_acl_remove(acl, match);
2143 monitor_printf(mon, "acl: no matching acl entry\n");
2145 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2149 void qmp_getfd(const char *fdname, Error **errp)
2154 fd = qemu_chr_fe_get_msgfd(&cur_mon->chr);
2156 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2160 if (qemu_isdigit(fdname[0])) {
2162 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
2163 "a name not starting with a digit");
2167 qemu_mutex_lock(&cur_mon->mon_lock);
2168 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2169 if (strcmp(monfd->name, fdname) != 0) {
2175 qemu_mutex_unlock(&cur_mon->mon_lock);
2176 /* Make sure close() is outside critical section */
2181 monfd = g_malloc0(sizeof(mon_fd_t));
2182 monfd->name = g_strdup(fdname);
2185 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
2186 qemu_mutex_unlock(&cur_mon->mon_lock);
2189 void qmp_closefd(const char *fdname, Error **errp)
2194 qemu_mutex_lock(&cur_mon->mon_lock);
2195 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2196 if (strcmp(monfd->name, fdname) != 0) {
2200 QLIST_REMOVE(monfd, next);
2202 g_free(monfd->name);
2204 qemu_mutex_unlock(&cur_mon->mon_lock);
2205 /* Make sure close() is outside critical section */
2210 qemu_mutex_unlock(&cur_mon->mon_lock);
2211 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
2214 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
2218 qemu_mutex_lock(&mon->mon_lock);
2219 QLIST_FOREACH(monfd, &mon->fds, next) {
2222 if (strcmp(monfd->name, fdname) != 0) {
2228 /* caller takes ownership of fd */
2229 QLIST_REMOVE(monfd, next);
2230 g_free(monfd->name);
2232 qemu_mutex_unlock(&mon->mon_lock);
2237 qemu_mutex_unlock(&mon->mon_lock);
2238 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
2242 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
2244 MonFdsetFd *mon_fdset_fd;
2245 MonFdsetFd *mon_fdset_fd_next;
2247 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
2248 if ((mon_fdset_fd->removed ||
2249 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
2250 runstate_is_running()) {
2251 close(mon_fdset_fd->fd);
2252 g_free(mon_fdset_fd->opaque);
2253 QLIST_REMOVE(mon_fdset_fd, next);
2254 g_free(mon_fdset_fd);
2258 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
2259 QLIST_REMOVE(mon_fdset, next);
2264 static void monitor_fdsets_cleanup(void)
2266 MonFdset *mon_fdset;
2267 MonFdset *mon_fdset_next;
2269 qemu_mutex_lock(&mon_fdsets_lock);
2270 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
2271 monitor_fdset_cleanup(mon_fdset);
2273 qemu_mutex_unlock(&mon_fdsets_lock);
2276 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
2277 const char *opaque, Error **errp)
2280 Monitor *mon = cur_mon;
2283 fd = qemu_chr_fe_get_msgfd(&mon->chr);
2285 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2289 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
2290 has_opaque, opaque, errp);
2302 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
2304 MonFdset *mon_fdset;
2305 MonFdsetFd *mon_fdset_fd;
2308 qemu_mutex_lock(&mon_fdsets_lock);
2309 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2310 if (mon_fdset->id != fdset_id) {
2313 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2315 if (mon_fdset_fd->fd != fd) {
2318 mon_fdset_fd->removed = true;
2321 mon_fdset_fd->removed = true;
2324 if (has_fd && !mon_fdset_fd) {
2327 monitor_fdset_cleanup(mon_fdset);
2328 qemu_mutex_unlock(&mon_fdsets_lock);
2333 qemu_mutex_unlock(&mon_fdsets_lock);
2335 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
2338 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
2340 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
2343 FdsetInfoList *qmp_query_fdsets(Error **errp)
2345 MonFdset *mon_fdset;
2346 MonFdsetFd *mon_fdset_fd;
2347 FdsetInfoList *fdset_list = NULL;
2349 qemu_mutex_lock(&mon_fdsets_lock);
2350 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2351 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
2352 FdsetFdInfoList *fdsetfd_list = NULL;
2354 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
2355 fdset_info->value->fdset_id = mon_fdset->id;
2357 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2358 FdsetFdInfoList *fdsetfd_info;
2360 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
2361 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
2362 fdsetfd_info->value->fd = mon_fdset_fd->fd;
2363 if (mon_fdset_fd->opaque) {
2364 fdsetfd_info->value->has_opaque = true;
2365 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
2367 fdsetfd_info->value->has_opaque = false;
2370 fdsetfd_info->next = fdsetfd_list;
2371 fdsetfd_list = fdsetfd_info;
2374 fdset_info->value->fds = fdsetfd_list;
2376 fdset_info->next = fdset_list;
2377 fdset_list = fdset_info;
2379 qemu_mutex_unlock(&mon_fdsets_lock);
2384 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
2385 bool has_opaque, const char *opaque,
2388 MonFdset *mon_fdset = NULL;
2389 MonFdsetFd *mon_fdset_fd;
2392 qemu_mutex_lock(&mon_fdsets_lock);
2394 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2395 /* Break if match found or match impossible due to ordering by ID */
2396 if (fdset_id <= mon_fdset->id) {
2397 if (fdset_id < mon_fdset->id) {
2405 if (mon_fdset == NULL) {
2406 int64_t fdset_id_prev = -1;
2407 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
2411 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
2412 "a non-negative value");
2413 qemu_mutex_unlock(&mon_fdsets_lock);
2416 /* Use specified fdset ID */
2417 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2418 mon_fdset_cur = mon_fdset;
2419 if (fdset_id < mon_fdset_cur->id) {
2424 /* Use first available fdset ID */
2425 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2426 mon_fdset_cur = mon_fdset;
2427 if (fdset_id_prev == mon_fdset_cur->id - 1) {
2428 fdset_id_prev = mon_fdset_cur->id;
2435 mon_fdset = g_malloc0(sizeof(*mon_fdset));
2437 mon_fdset->id = fdset_id;
2439 mon_fdset->id = fdset_id_prev + 1;
2442 /* The fdset list is ordered by fdset ID */
2443 if (!mon_fdset_cur) {
2444 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
2445 } else if (mon_fdset->id < mon_fdset_cur->id) {
2446 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
2448 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
2452 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
2453 mon_fdset_fd->fd = fd;
2454 mon_fdset_fd->removed = false;
2456 mon_fdset_fd->opaque = g_strdup(opaque);
2458 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
2460 fdinfo = g_malloc0(sizeof(*fdinfo));
2461 fdinfo->fdset_id = mon_fdset->id;
2462 fdinfo->fd = mon_fdset_fd->fd;
2464 qemu_mutex_unlock(&mon_fdsets_lock);
2468 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
2473 MonFdset *mon_fdset;
2474 MonFdsetFd *mon_fdset_fd;
2478 qemu_mutex_lock(&mon_fdsets_lock);
2479 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2480 if (mon_fdset->id != fdset_id) {
2483 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2484 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2485 if (mon_fd_flags == -1) {
2490 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2491 ret = mon_fdset_fd->fd;
2501 qemu_mutex_unlock(&mon_fdsets_lock);
2506 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2508 MonFdset *mon_fdset;
2509 MonFdsetFd *mon_fdset_fd_dup;
2511 qemu_mutex_lock(&mon_fdsets_lock);
2512 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2513 if (mon_fdset->id != fdset_id) {
2516 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2517 if (mon_fdset_fd_dup->fd == dup_fd) {
2521 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2522 mon_fdset_fd_dup->fd = dup_fd;
2523 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2524 qemu_mutex_unlock(&mon_fdsets_lock);
2529 qemu_mutex_unlock(&mon_fdsets_lock);
2533 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2535 MonFdset *mon_fdset;
2536 MonFdsetFd *mon_fdset_fd_dup;
2538 qemu_mutex_lock(&mon_fdsets_lock);
2539 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2540 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2541 if (mon_fdset_fd_dup->fd == dup_fd) {
2543 QLIST_REMOVE(mon_fdset_fd_dup, next);
2544 if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
2545 monitor_fdset_cleanup(mon_fdset);
2549 qemu_mutex_unlock(&mon_fdsets_lock);
2550 return mon_fdset->id;
2557 qemu_mutex_unlock(&mon_fdsets_lock);
2561 int monitor_fdset_dup_fd_find(int dup_fd)
2563 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2566 void monitor_fdset_dup_fd_remove(int dup_fd)
2568 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2571 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2574 Error *local_err = NULL;
2576 if (!qemu_isdigit(fdname[0]) && mon) {
2577 fd = monitor_get_fd(mon, fdname, &local_err);
2579 fd = qemu_parse_fd(fdname);
2581 error_setg(&local_err, "Invalid file descriptor number '%s'",
2586 error_propagate(errp, local_err);
2595 /* Please update hmp-commands.hx when adding or changing commands */
2596 static mon_cmd_t info_cmds[] = {
2597 #include "hmp-commands-info.h"
2601 /* mon_cmds and info_cmds would be sorted at runtime */
2602 static mon_cmd_t mon_cmds[] = {
2603 #include "hmp-commands.h"
2607 /*******************************************************************/
2609 static const char *pch;
2610 static sigjmp_buf expr_env;
2613 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2614 expr_error(Monitor *mon, const char *fmt, ...)
2618 monitor_vprintf(mon, fmt, ap);
2619 monitor_printf(mon, "\n");
2621 siglongjmp(expr_env, 1);
2624 /* return 0 if OK, -1 if not found */
2625 static int get_monitor_def(target_long *pval, const char *name)
2627 const MonitorDef *md = target_monitor_defs();
2628 CPUState *cs = mon_get_cpu();
2633 if (cs == NULL || md == NULL) {
2637 for(; md->name != NULL; md++) {
2638 if (compare_cmd(name, md->name)) {
2639 if (md->get_value) {
2640 *pval = md->get_value(md, md->offset);
2642 CPUArchState *env = mon_get_cpu_env();
2643 ptr = (uint8_t *)env + md->offset;
2646 *pval = *(int32_t *)ptr;
2649 *pval = *(target_long *)ptr;
2660 ret = target_get_monitor_def(cs, name, &tmp);
2662 *pval = (target_long) tmp;
2668 static void next(void)
2672 while (qemu_isspace(*pch))
2677 static int64_t expr_sum(Monitor *mon);
2679 static int64_t expr_unary(Monitor *mon)
2688 n = expr_unary(mon);
2692 n = -expr_unary(mon);
2696 n = ~expr_unary(mon);
2702 expr_error(mon, "')' expected");
2709 expr_error(mon, "character constant expected");
2713 expr_error(mon, "missing terminating \' character");
2723 while ((*pch >= 'a' && *pch <= 'z') ||
2724 (*pch >= 'A' && *pch <= 'Z') ||
2725 (*pch >= '0' && *pch <= '9') ||
2726 *pch == '_' || *pch == '.') {
2727 if ((q - buf) < sizeof(buf) - 1)
2731 while (qemu_isspace(*pch))
2734 ret = get_monitor_def(®, buf);
2736 expr_error(mon, "unknown register");
2741 expr_error(mon, "unexpected end of expression");
2746 n = strtoull(pch, &p, 0);
2747 if (errno == ERANGE) {
2748 expr_error(mon, "number too large");
2751 expr_error(mon, "invalid char '%c' in expression", *p);
2754 while (qemu_isspace(*pch))
2762 static int64_t expr_prod(Monitor *mon)
2767 val = expr_unary(mon);
2770 if (op != '*' && op != '/' && op != '%')
2773 val2 = expr_unary(mon);
2782 expr_error(mon, "division by zero");
2793 static int64_t expr_logic(Monitor *mon)
2798 val = expr_prod(mon);
2801 if (op != '&' && op != '|' && op != '^')
2804 val2 = expr_prod(mon);
2821 static int64_t expr_sum(Monitor *mon)
2826 val = expr_logic(mon);
2829 if (op != '+' && op != '-')
2832 val2 = expr_logic(mon);
2841 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2844 if (sigsetjmp(expr_env, 0)) {
2848 while (qemu_isspace(*pch))
2850 *pval = expr_sum(mon);
2855 static int get_double(Monitor *mon, double *pval, const char **pp)
2857 const char *p = *pp;
2861 d = strtod(p, &tailp);
2863 monitor_printf(mon, "Number expected\n");
2866 if (d != d || d - d != 0) {
2867 /* NaN or infinity */
2868 monitor_printf(mon, "Bad number\n");
2877 * Store the command-name in cmdname, and return a pointer to
2878 * the remaining of the command string.
2880 static const char *get_command_name(const char *cmdline,
2881 char *cmdname, size_t nlen)
2884 const char *p, *pstart;
2887 while (qemu_isspace(*p))
2892 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2897 memcpy(cmdname, pstart, len);
2898 cmdname[len] = '\0';
2903 * Read key of 'type' into 'key' and return the current
2906 static char *key_get_info(const char *type, char **key)
2914 p = strchr(type, ':');
2921 str = g_malloc(len + 1);
2922 memcpy(str, type, len);
2929 static int default_fmt_format = 'x';
2930 static int default_fmt_size = 4;
2932 static int is_valid_option(const char *c, const char *typestr)
2940 typestr = strstr(typestr, option);
2941 return (typestr != NULL);
2944 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2945 const char *cmdname)
2947 const mon_cmd_t *cmd;
2949 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2950 if (compare_cmd(cmdname, cmd->name)) {
2959 * Parse command name from @cmdp according to command table @table.
2960 * If blank, return NULL.
2961 * Else, if no valid command can be found, report to @mon, and return
2963 * Else, change @cmdp to point right behind the name, and return its
2964 * command table entry.
2965 * Do not assume the return value points into @table! It doesn't when
2966 * the command is found in a sub-command table.
2968 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2969 const char *cmdp_start,
2974 const mon_cmd_t *cmd;
2977 /* extract the command name */
2978 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2982 cmd = search_dispatch_table(table, cmdname);
2984 monitor_printf(mon, "unknown command: '%.*s'\n",
2985 (int)(p - cmdp_start), cmdp_start);
2988 if (runstate_check(RUN_STATE_PRECONFIG) && !cmd_can_preconfig(cmd)) {
2989 monitor_printf(mon, "Command '%.*s' not available with -preconfig "
2990 "until after exit_preconfig.\n",
2991 (int)(p - cmdp_start), cmdp_start);
2995 /* filter out following useless space */
2996 while (qemu_isspace(*p)) {
3001 /* search sub command */
3002 if (cmd->sub_table != NULL && *p != '\0') {
3003 return monitor_parse_command(mon, cmdp_start, cmdp, cmd->sub_table);
3010 * Parse arguments for @cmd.
3011 * If it can't be parsed, report to @mon, and return NULL.
3012 * Else, insert command arguments into a QDict, and return it.
3013 * Note: On success, caller has to free the QDict structure.
3016 static QDict *monitor_parse_arguments(Monitor *mon,
3018 const mon_cmd_t *cmd)
3020 const char *typestr;
3023 const char *p = *endp;
3025 QDict *qdict = qdict_new();
3027 /* parse the parameters */
3028 typestr = cmd->args_type;
3030 typestr = key_get_info(typestr, &key);
3042 while (qemu_isspace(*p))
3044 if (*typestr == '?') {
3047 /* no optional string: NULL argument */
3051 ret = get_str(buf, sizeof(buf), &p);
3055 monitor_printf(mon, "%s: filename expected\n",
3059 monitor_printf(mon, "%s: block device name expected\n",
3063 monitor_printf(mon, "%s: string expected\n", cmd->name);
3068 qdict_put_str(qdict, key, buf);
3073 QemuOptsList *opts_list;
3076 opts_list = qemu_find_opts(key);
3077 if (!opts_list || opts_list->desc->name) {
3080 while (qemu_isspace(*p)) {
3085 if (get_str(buf, sizeof(buf), &p) < 0) {
3088 opts = qemu_opts_parse_noisily(opts_list, buf, true);
3092 qemu_opts_to_qdict(opts, qdict);
3093 qemu_opts_del(opts);
3098 int count, format, size;
3100 while (qemu_isspace(*p))
3106 if (qemu_isdigit(*p)) {
3108 while (qemu_isdigit(*p)) {
3109 count = count * 10 + (*p - '0');
3147 if (*p != '\0' && !qemu_isspace(*p)) {
3148 monitor_printf(mon, "invalid char in format: '%c'\n",
3153 format = default_fmt_format;
3154 if (format != 'i') {
3155 /* for 'i', not specifying a size gives -1 as size */
3157 size = default_fmt_size;
3158 default_fmt_size = size;
3160 default_fmt_format = format;
3163 format = default_fmt_format;
3164 if (format != 'i') {
3165 size = default_fmt_size;
3170 qdict_put_int(qdict, "count", count);
3171 qdict_put_int(qdict, "format", format);
3172 qdict_put_int(qdict, "size", size);
3181 while (qemu_isspace(*p))
3183 if (*typestr == '?' || *typestr == '.') {
3184 if (*typestr == '?') {
3192 while (qemu_isspace(*p))
3201 if (get_expr(mon, &val, &p))
3203 /* Check if 'i' is greater than 32-bit */
3204 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3205 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
3206 monitor_printf(mon, "integer is for 32-bit values\n");
3208 } else if (c == 'M') {
3210 monitor_printf(mon, "enter a positive value\n");
3215 qdict_put_int(qdict, key, val);
3224 while (qemu_isspace(*p)) {
3227 if (*typestr == '?') {
3233 ret = qemu_strtosz_MiB(p, &end, &val);
3234 if (ret < 0 || val > INT64_MAX) {
3235 monitor_printf(mon, "invalid size\n");
3238 qdict_put_int(qdict, key, val);
3246 while (qemu_isspace(*p))
3248 if (*typestr == '?') {
3254 if (get_double(mon, &val, &p) < 0) {
3257 if (p[0] && p[1] == 's') {
3260 val /= 1e3; p += 2; break;
3262 val /= 1e6; p += 2; break;
3264 val /= 1e9; p += 2; break;
3267 if (*p && !qemu_isspace(*p)) {
3268 monitor_printf(mon, "Unknown unit suffix\n");
3271 qdict_put(qdict, key, qnum_from_double(val));
3279 while (qemu_isspace(*p)) {
3283 while (qemu_isgraph(*p)) {
3286 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3288 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3291 monitor_printf(mon, "Expected 'on' or 'off'\n");
3294 qdict_put_bool(qdict, key, val);
3299 const char *tmp = p;
3306 while (qemu_isspace(*p))
3311 if(!is_valid_option(p, typestr)) {
3313 monitor_printf(mon, "%s: unsupported option -%c\n",
3325 qdict_put_bool(qdict, key, true);
3332 /* package all remaining string */
3335 while (qemu_isspace(*p)) {
3338 if (*typestr == '?') {
3341 /* no remaining string: NULL argument */
3347 monitor_printf(mon, "%s: string expected\n",
3351 qdict_put_str(qdict, key, p);
3357 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
3363 /* check that all arguments were parsed */
3364 while (qemu_isspace(*p))
3367 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3375 qobject_unref(qdict);
3380 static void handle_hmp_command(Monitor *mon, const char *cmdline)
3383 const mon_cmd_t *cmd;
3384 const char *cmd_start = cmdline;
3386 trace_handle_hmp_command(mon, cmdline);
3388 cmd = monitor_parse_command(mon, cmdline, &cmdline, mon->cmd_table);
3393 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
3395 while (cmdline > cmd_start && qemu_isspace(cmdline[-1])) {
3398 monitor_printf(mon, "Try \"help %.*s\" for more information\n",
3399 (int)(cmdline - cmd_start), cmd_start);
3403 cmd->cmd(mon, qdict);
3404 qobject_unref(qdict);
3407 static void cmd_completion(Monitor *mon, const char *name, const char *list)
3409 const char *p, *pstart;
3416 p = qemu_strchrnul(p, '|');
3418 if (len > sizeof(cmd) - 2)
3419 len = sizeof(cmd) - 2;
3420 memcpy(cmd, pstart, len);
3422 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3423 readline_add_completion(mon->rs, cmd);
3431 static void file_completion(Monitor *mon, const char *input)
3436 char file[1024], file_prefix[1024];
3440 p = strrchr(input, '/');
3443 pstrcpy(file_prefix, sizeof(file_prefix), input);
3444 pstrcpy(path, sizeof(path), ".");
3446 input_path_len = p - input + 1;
3447 memcpy(path, input, input_path_len);
3448 if (input_path_len > sizeof(path) - 1)
3449 input_path_len = sizeof(path) - 1;
3450 path[input_path_len] = '\0';
3451 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3454 ffs = opendir(path);
3463 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
3467 if (strstart(d->d_name, file_prefix, NULL)) {
3468 memcpy(file, input, input_path_len);
3469 if (input_path_len < sizeof(file))
3470 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3472 /* stat the file to find out if it's a directory.
3473 * In that case add a slash to speed up typing long paths
3475 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
3476 pstrcat(file, sizeof(file), "/");
3478 readline_add_completion(mon->rs, file);
3484 static const char *next_arg_type(const char *typestr)
3486 const char *p = strchr(typestr, ':');
3487 return (p != NULL ? ++p : typestr);
3490 static void add_completion_option(ReadLineState *rs, const char *str,
3493 if (!str || !option) {
3496 if (!strncmp(option, str, strlen(str))) {
3497 readline_add_completion(rs, option);
3501 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3504 ChardevBackendInfoList *list, *start;
3510 readline_set_completion_index(rs, len);
3512 start = list = qmp_query_chardev_backends(NULL);
3514 const char *chr_name = list->value->name;
3516 if (!strncmp(chr_name, str, len)) {
3517 readline_add_completion(rs, chr_name);
3521 qapi_free_ChardevBackendInfoList(start);
3524 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3533 readline_set_completion_index(rs, len);
3534 for (i = 0; i < NET_CLIENT_DRIVER__MAX; i++) {
3535 add_completion_option(rs, str, NetClientDriver_str(i));
3539 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3549 readline_set_completion_index(rs, len);
3550 list = elt = object_class_get_list(TYPE_DEVICE, false);
3553 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3555 name = object_class_get_name(OBJECT_CLASS(dc));
3557 if (dc->user_creatable
3558 && !strncmp(name, str, len)) {
3559 readline_add_completion(rs, name);
3566 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3576 readline_set_completion_index(rs, len);
3577 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3581 name = object_class_get_name(OBJECT_CLASS(elt->data));
3582 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3583 readline_add_completion(rs, name);
3590 static void peripheral_device_del_completion(ReadLineState *rs,
3591 const char *str, size_t len)
3593 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3594 GSList *list, *item;
3596 list = qdev_build_hotpluggable_device_list(peripheral);
3601 for (item = list; item; item = g_slist_next(item)) {
3602 DeviceState *dev = item->data;
3604 if (dev->id && !strncmp(str, dev->id, len)) {
3605 readline_add_completion(rs, dev->id);
3612 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3615 ChardevInfoList *list, *start;
3621 readline_set_completion_index(rs, len);
3623 start = list = qmp_query_chardev(NULL);
3625 ChardevInfo *chr = list->value;
3627 if (!strncmp(chr->label, str, len)) {
3628 readline_add_completion(rs, chr->label);
3632 qapi_free_ChardevInfoList(start);
3635 static void ringbuf_completion(ReadLineState *rs, const char *str)
3638 ChardevInfoList *list, *start;
3641 readline_set_completion_index(rs, len);
3643 start = list = qmp_query_chardev(NULL);
3645 ChardevInfo *chr_info = list->value;
3647 if (!strncmp(chr_info->label, str, len)) {
3648 Chardev *chr = qemu_chr_find(chr_info->label);
3649 if (chr && CHARDEV_IS_RINGBUF(chr)) {
3650 readline_add_completion(rs, chr_info->label);
3655 qapi_free_ChardevInfoList(start);
3658 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3663 ringbuf_completion(rs, str);
3666 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3675 readline_set_completion_index(rs, len);
3676 peripheral_device_del_completion(rs, str, len);
3679 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3681 ObjectPropertyInfoList *list, *start;
3688 readline_set_completion_index(rs, len);
3690 start = list = qmp_qom_list("/objects", NULL);
3692 ObjectPropertyInfo *info = list->value;
3694 if (!strncmp(info->type, "child<", 5)
3695 && !strncmp(info->name, str, len)) {
3696 readline_add_completion(rs, info->name);
3700 qapi_free_ObjectPropertyInfoList(start);
3703 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3712 sep = strrchr(str, '-');
3717 readline_set_completion_index(rs, len);
3718 for (i = 0; i < Q_KEY_CODE__MAX; i++) {
3719 if (!strncmp(str, QKeyCode_str(i), len)) {
3720 readline_add_completion(rs, QKeyCode_str(i));
3725 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3730 readline_set_completion_index(rs, len);
3732 NetClientState *ncs[MAX_QUEUE_NUM];
3734 count = qemu_find_net_clients_except(NULL, ncs,
3735 NET_CLIENT_DRIVER_NONE,
3737 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3738 const char *name = ncs[i]->name;
3739 if (!strncmp(str, name, len)) {
3740 readline_add_completion(rs, name);
3743 } else if (nb_args == 3) {
3744 add_completion_option(rs, str, "on");
3745 add_completion_option(rs, str, "off");
3749 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3752 NetClientState *ncs[MAX_QUEUE_NUM];
3759 readline_set_completion_index(rs, len);
3760 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC,
3762 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3764 const char *name = ncs[i]->name;
3765 if (strncmp(str, name, len)) {
3768 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3770 readline_add_completion(rs, name);
3775 void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
3780 readline_set_completion_index(rs, len);
3782 TraceEventIter iter;
3784 char *pattern = g_strdup_printf("%s*", str);
3785 trace_event_iter_init(&iter, pattern);
3786 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3787 readline_add_completion(rs, trace_event_get_name(ev));
3793 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3798 readline_set_completion_index(rs, len);
3800 TraceEventIter iter;
3802 char *pattern = g_strdup_printf("%s*", str);
3803 trace_event_iter_init(&iter, pattern);
3804 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3805 readline_add_completion(rs, trace_event_get_name(ev));
3808 } else if (nb_args == 3) {
3809 add_completion_option(rs, str, "on");
3810 add_completion_option(rs, str, "off");
3814 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3821 readline_set_completion_index(rs, strlen(str));
3822 for (i = 0; i < WATCHDOG_ACTION__MAX; i++) {
3823 add_completion_option(rs, str, WatchdogAction_str(i));
3827 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3833 readline_set_completion_index(rs, len);
3836 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
3837 const char *name = MigrationCapability_str(i);
3838 if (!strncmp(str, name, len)) {
3839 readline_add_completion(rs, name);
3842 } else if (nb_args == 3) {
3843 add_completion_option(rs, str, "on");
3844 add_completion_option(rs, str, "off");
3848 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3854 readline_set_completion_index(rs, len);
3857 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
3858 const char *name = MigrationParameter_str(i);
3859 if (!strncmp(str, name, len)) {
3860 readline_add_completion(rs, name);
3866 static void vm_completion(ReadLineState *rs, const char *str)
3869 BlockDriverState *bs;
3870 BdrvNextIterator it;
3873 readline_set_completion_index(rs, len);
3875 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
3876 SnapshotInfoList *snapshots, *snapshot;
3877 AioContext *ctx = bdrv_get_aio_context(bs);
3880 aio_context_acquire(ctx);
3881 if (bdrv_can_snapshot(bs)) {
3882 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
3884 aio_context_release(ctx);
3889 snapshot = snapshots;
3891 char *completion = snapshot->value->name;
3892 if (!strncmp(str, completion, len)) {
3893 readline_add_completion(rs, completion);
3895 completion = snapshot->value->id;
3896 if (!strncmp(str, completion, len)) {
3897 readline_add_completion(rs, completion);
3899 snapshot = snapshot->next;
3901 qapi_free_SnapshotInfoList(snapshots);
3906 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3909 vm_completion(rs, str);
3913 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3916 vm_completion(rs, str);
3920 static void monitor_find_completion_by_table(Monitor *mon,
3921 const mon_cmd_t *cmd_table,
3925 const char *cmdname;
3927 const char *ptype, *old_ptype, *str, *name;
3928 const mon_cmd_t *cmd;
3929 BlockBackend *blk = NULL;
3932 /* command completion */
3937 readline_set_completion_index(mon->rs, strlen(cmdname));
3938 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3939 if (!runstate_check(RUN_STATE_PRECONFIG) ||
3940 cmd_can_preconfig(cmd)) {
3941 cmd_completion(mon, cmdname, cmd->name);
3945 /* find the command */
3946 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3947 if (compare_cmd(args[0], cmd->name) &&
3948 (!runstate_check(RUN_STATE_PRECONFIG) ||
3949 cmd_can_preconfig(cmd))) {
3957 if (cmd->sub_table) {
3958 /* do the job again */
3959 monitor_find_completion_by_table(mon, cmd->sub_table,
3960 &args[1], nb_args - 1);
3963 if (cmd->command_completion) {
3964 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3968 ptype = next_arg_type(cmd->args_type);
3969 for(i = 0; i < nb_args - 2; i++) {
3970 if (*ptype != '\0') {
3971 ptype = next_arg_type(ptype);
3972 while (*ptype == '?')
3973 ptype = next_arg_type(ptype);
3976 str = args[nb_args - 1];
3978 while (*ptype == '-' && old_ptype != ptype) {
3980 ptype = next_arg_type(ptype);
3984 /* file completion */
3985 readline_set_completion_index(mon->rs, strlen(str));
3986 file_completion(mon, str);
3989 /* block device name completion */
3990 readline_set_completion_index(mon->rs, strlen(str));
3991 while ((blk = blk_next(blk)) != NULL) {
3992 name = blk_name(blk);
3993 if (str[0] == '\0' ||
3994 !strncmp(name, str, strlen(str))) {
3995 readline_add_completion(mon->rs, name);
4001 if (!strcmp(cmd->name, "help|?")) {
4002 monitor_find_completion_by_table(mon, cmd_table,
4003 &args[1], nb_args - 1);
4012 static void monitor_find_completion(void *opaque,
4013 const char *cmdline)
4015 Monitor *mon = opaque;
4016 char *args[MAX_ARGS];
4019 /* 1. parse the cmdline */
4020 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
4024 /* if the line ends with a space, it means we want to complete the
4026 len = strlen(cmdline);
4027 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
4028 if (nb_args >= MAX_ARGS) {
4031 args[nb_args++] = g_strdup("");
4034 /* 2. auto complete according to args */
4035 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
4038 free_cmdline_args(args, nb_args);
4041 static int monitor_can_read(void *opaque)
4043 Monitor *mon = opaque;
4045 return !atomic_mb_read(&mon->suspend_cnt);
4049 * Emit QMP response @rsp with ID @id to @mon.
4050 * Null @rsp can only happen for commands with QCO_NO_SUCCESS_RESP.
4051 * Nothing is emitted then.
4053 static void monitor_qmp_respond(Monitor *mon, QDict *rsp, QObject *id)
4057 qdict_put_obj(rsp, "id", qobject_ref(id));
4060 qmp_send_response(mon, rsp);
4064 static void monitor_qmp_dispatch(Monitor *mon, QObject *req, QObject *id)
4073 rsp = qmp_dispatch(mon->qmp.commands, req, qmp_oob_enabled(mon));
4077 if (mon->qmp.commands == &qmp_cap_negotiation_commands) {
4078 error = qdict_get_qdict(rsp, "error");
4080 && !g_strcmp0(qdict_get_try_str(error, "class"),
4081 QapiErrorClass_str(ERROR_CLASS_COMMAND_NOT_FOUND))) {
4082 /* Provide a more useful error message */
4083 qdict_del(error, "desc");
4084 qdict_put_str(error, "desc", "Expecting capabilities negotiation"
4085 " with 'qmp_capabilities'");
4089 monitor_qmp_respond(mon, rsp, id);
4094 * Pop a QMP request from a monitor request queue.
4095 * Return the request, or NULL all request queues are empty.
4096 * We are using round-robin fashion to pop the request, to avoid
4097 * processing commands only on a very busy monitor. To achieve that,
4098 * when we process one request on a specific monitor, we put that
4099 * monitor to the end of mon_list queue.
4101 static QMPRequest *monitor_qmp_requests_pop_any(void)
4103 QMPRequest *req_obj = NULL;
4106 qemu_mutex_lock(&monitor_lock);
4108 QTAILQ_FOREACH(mon, &mon_list, entry) {
4109 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4110 req_obj = g_queue_pop_head(mon->qmp.qmp_requests);
4111 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4119 * We found one request on the monitor. Degrade this monitor's
4120 * priority to lowest by re-inserting it to end of queue.
4122 QTAILQ_REMOVE(&mon_list, mon, entry);
4123 QTAILQ_INSERT_TAIL(&mon_list, mon, entry);
4126 qemu_mutex_unlock(&monitor_lock);
4131 static void monitor_qmp_bh_dispatcher(void *data)
4133 QMPRequest *req_obj = monitor_qmp_requests_pop_any();
4141 /* qmp_oob_enabled() might change after "qmp_capabilities" */
4142 need_resume = !qmp_oob_enabled(req_obj->mon);
4144 trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj->id) ?: "");
4145 monitor_qmp_dispatch(req_obj->mon, req_obj->req, req_obj->id);
4147 assert(req_obj->err);
4148 rsp = qmp_error_response(req_obj->err);
4149 req_obj->err = NULL;
4150 monitor_qmp_respond(req_obj->mon, rsp, NULL);
4155 /* Pairs with the monitor_suspend() in handle_qmp_command() */
4156 monitor_resume(req_obj->mon);
4158 qmp_request_free(req_obj);
4160 /* Reschedule instead of looping so the main loop stays responsive */
4161 qemu_bh_schedule(qmp_dispatcher_bh);
4164 #define QMP_REQ_QUEUE_LEN_MAX (8)
4166 static void handle_qmp_command(void *opaque, QObject *req, Error *err)
4168 Monitor *mon = opaque;
4171 QMPRequest *req_obj;
4173 assert(!req != !err);
4175 qdict = qobject_to(QDict, req);
4177 id = qobject_ref(qdict_get(qdict, "id"));
4178 qdict_del(qdict, "id");
4179 } /* else will fail qmp_dispatch() */
4181 if (req && trace_event_get_state_backends(TRACE_HANDLE_QMP_COMMAND)) {
4182 QString *req_json = qobject_to_json(req);
4183 trace_handle_qmp_command(mon, qstring_get_str(req_json));
4184 qobject_unref(req_json);
4187 if (qdict && qmp_is_oob(qdict)) {
4188 /* OOB commands are executed immediately */
4189 trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(id)
4191 monitor_qmp_dispatch(mon, req, id);
4197 req_obj = g_new0(QMPRequest, 1);
4203 /* Protect qmp_requests and fetching its length. */
4204 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4207 * If OOB is not enabled on the current monitor, we'll emulate the
4208 * old behavior that we won't process the current monitor any more
4209 * until it has responded. This helps make sure that as long as
4210 * OOB is not enabled, the server will never drop any command.
4212 if (!qmp_oob_enabled(mon)) {
4213 monitor_suspend(mon);
4215 /* Drop the request if queue is full. */
4216 if (mon->qmp.qmp_requests->length >= QMP_REQ_QUEUE_LEN_MAX) {
4217 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4219 * FIXME @id's scope is just @mon, and broadcasting it is
4220 * wrong. If another monitor's client has a command with
4221 * the same ID in flight, the event will incorrectly claim
4222 * that command was dropped.
4224 qapi_event_send_command_dropped(id,
4225 COMMAND_DROP_REASON_QUEUE_FULL);
4226 qmp_request_free(req_obj);
4232 * Put the request to the end of queue so that requests will be
4233 * handled in time order. Ownership for req_obj, req, id,
4234 * etc. will be delivered to the handler side.
4236 g_queue_push_tail(mon->qmp.qmp_requests, req_obj);
4237 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4239 /* Kick the dispatcher routine */
4240 qemu_bh_schedule(qmp_dispatcher_bh);
4243 static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
4245 Monitor *mon = opaque;
4247 json_message_parser_feed(&mon->qmp.parser, (const char *) buf, size);
4250 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4252 Monitor *old_mon = cur_mon;
4258 for (i = 0; i < size; i++)
4259 readline_handle_byte(cur_mon->rs, buf[i]);
4261 if (size == 0 || buf[size - 1] != 0)
4262 monitor_printf(cur_mon, "corrupted command\n");
4264 handle_hmp_command(cur_mon, (char *)buf);
4270 static void monitor_command_cb(void *opaque, const char *cmdline,
4271 void *readline_opaque)
4273 Monitor *mon = opaque;
4275 monitor_suspend(mon);
4276 handle_hmp_command(mon, cmdline);
4277 monitor_resume(mon);
4280 int monitor_suspend(Monitor *mon)
4282 if (monitor_is_hmp_non_interactive(mon)) {
4286 atomic_inc(&mon->suspend_cnt);
4288 if (monitor_is_qmp(mon)) {
4290 * Kick I/O thread to make sure this takes effect. It'll be
4291 * evaluated again in prepare() of the watch object.
4293 aio_notify(iothread_get_aio_context(mon_iothread));
4296 trace_monitor_suspend(mon, 1);
4300 void monitor_resume(Monitor *mon)
4302 if (monitor_is_hmp_non_interactive(mon)) {
4306 if (atomic_dec_fetch(&mon->suspend_cnt) == 0) {
4307 if (monitor_is_qmp(mon)) {
4309 * For QMP monitors that are running in the I/O thread,
4310 * let's kick the thread in case it's sleeping.
4312 if (mon->use_io_thread) {
4313 aio_notify(iothread_get_aio_context(mon_iothread));
4317 readline_show_prompt(mon->rs);
4319 qemu_chr_fe_accept_input(&mon->chr);
4321 trace_monitor_suspend(mon, -1);
4324 static QDict *qmp_greeting(Monitor *mon)
4326 QList *cap_list = qlist_new();
4327 QObject *ver = NULL;
4330 qmp_marshal_query_version(NULL, &ver, NULL);
4332 for (cap = 0; cap < QMP_CAPABILITY__MAX; cap++) {
4333 if (mon->qmp.capab_offered[cap]) {
4334 qlist_append_str(cap_list, QMPCapability_str(cap));
4338 return qdict_from_jsonf_nofail(
4339 "{'QMP': {'version': %p, 'capabilities': %p}}",
4343 static void monitor_qmp_event(void *opaque, int event)
4346 Monitor *mon = opaque;
4349 case CHR_EVENT_OPENED:
4350 mon->qmp.commands = &qmp_cap_negotiation_commands;
4351 monitor_qmp_caps_reset(mon);
4352 data = qmp_greeting(mon);
4353 qmp_send_response(mon, data);
4354 qobject_unref(data);
4357 case CHR_EVENT_CLOSED:
4359 * Note: this is only useful when the output of the chardev
4360 * backend is still open. For example, when the backend is
4361 * stdio, it's possible that stdout is still open when stdin
4364 monitor_qmp_cleanup_queues(mon);
4365 json_message_parser_destroy(&mon->qmp.parser);
4366 json_message_parser_init(&mon->qmp.parser, handle_qmp_command,
4369 monitor_fdsets_cleanup();
4374 static void monitor_event(void *opaque, int event)
4376 Monitor *mon = opaque;
4379 case CHR_EVENT_MUX_IN:
4380 qemu_mutex_lock(&mon->mon_lock);
4382 qemu_mutex_unlock(&mon->mon_lock);
4383 if (mon->reset_seen) {
4384 readline_restart(mon->rs);
4385 monitor_resume(mon);
4388 atomic_mb_set(&mon->suspend_cnt, 0);
4392 case CHR_EVENT_MUX_OUT:
4393 if (mon->reset_seen) {
4394 if (atomic_mb_read(&mon->suspend_cnt) == 0) {
4395 monitor_printf(mon, "\n");
4398 monitor_suspend(mon);
4400 atomic_inc(&mon->suspend_cnt);
4402 qemu_mutex_lock(&mon->mon_lock);
4404 qemu_mutex_unlock(&mon->mon_lock);
4407 case CHR_EVENT_OPENED:
4408 monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4409 "information\n", QEMU_VERSION);
4410 if (!mon->mux_out) {
4411 readline_restart(mon->rs);
4412 readline_show_prompt(mon->rs);
4414 mon->reset_seen = 1;
4418 case CHR_EVENT_CLOSED:
4420 monitor_fdsets_cleanup();
4426 compare_mon_cmd(const void *a, const void *b)
4428 return strcmp(((const mon_cmd_t *)a)->name,
4429 ((const mon_cmd_t *)b)->name);
4432 static void sortcmdlist(void)
4435 int elem_size = sizeof(mon_cmd_t);
4437 array_num = sizeof(mon_cmds)/elem_size-1;
4438 qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
4440 array_num = sizeof(info_cmds)/elem_size-1;
4441 qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
4444 static GMainContext *monitor_get_io_context(void)
4446 return iothread_get_g_main_context(mon_iothread);
4449 static AioContext *monitor_get_aio_context(void)
4451 return iothread_get_aio_context(mon_iothread);
4454 static void monitor_iothread_init(void)
4456 mon_iothread = iothread_create("mon_iothread", &error_abort);
4459 * The dispatcher BH must run in the main loop thread, since we
4460 * have commands assuming that context. It would be nice to get
4461 * rid of those assumptions.
4463 qmp_dispatcher_bh = aio_bh_new(iohandler_get_aio_context(),
4464 monitor_qmp_bh_dispatcher,
4468 void monitor_init_globals(void)
4470 monitor_init_qmp_commands();
4471 monitor_qapi_event_init();
4473 qemu_mutex_init(&monitor_lock);
4474 qemu_mutex_init(&mon_fdsets_lock);
4475 monitor_iothread_init();
4478 /* These functions just adapt the readline interface in a typesafe way. We
4479 * could cast function pointers but that discards compiler checks.
4481 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
4482 const char *fmt, ...)
4486 monitor_vprintf(opaque, fmt, ap);
4490 static void monitor_readline_flush(void *opaque)
4492 monitor_flush(opaque);
4496 * Print to current monitor if we have one, else to stderr.
4497 * TODO should return int, so callers can calculate width, but that
4498 * requires surgery to monitor_vprintf(). Left for another day.
4500 void error_vprintf(const char *fmt, va_list ap)
4502 if (cur_mon && !monitor_cur_is_qmp()) {
4503 monitor_vprintf(cur_mon, fmt, ap);
4505 vfprintf(stderr, fmt, ap);
4509 void error_vprintf_unless_qmp(const char *fmt, va_list ap)
4511 if (cur_mon && !monitor_cur_is_qmp()) {
4512 monitor_vprintf(cur_mon, fmt, ap);
4513 } else if (!cur_mon) {
4514 vfprintf(stderr, fmt, ap);
4518 static void monitor_list_append(Monitor *mon)
4520 qemu_mutex_lock(&monitor_lock);
4521 QTAILQ_INSERT_HEAD(&mon_list, mon, entry);
4522 qemu_mutex_unlock(&monitor_lock);
4525 static void monitor_qmp_setup_handlers_bh(void *opaque)
4527 Monitor *mon = opaque;
4528 GMainContext *context;
4530 assert(mon->use_io_thread);
4531 context = monitor_get_io_context();
4533 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read,
4534 monitor_qmp_event, NULL, mon, context, true);
4535 monitor_list_append(mon);
4538 void monitor_init(Chardev *chr, int flags)
4540 Monitor *mon = g_malloc(sizeof(*mon));
4541 bool use_readline = flags & MONITOR_USE_READLINE;
4542 bool use_oob = flags & MONITOR_USE_OOB;
4545 if (CHARDEV_IS_MUX(chr)) {
4546 error_report("Monitor out-of-band is not supported with "
4547 "MUX typed chardev backend");
4551 error_report("Monitor out-of-band is only supported by QMP");
4556 monitor_data_init(mon, false, use_oob);
4558 qemu_chr_fe_init(&mon->chr, chr, &error_abort);
4561 mon->rs = readline_init(monitor_readline_printf,
4562 monitor_readline_flush,
4564 monitor_find_completion);
4565 monitor_read_command(mon, 0);
4568 if (monitor_is_qmp(mon)) {
4569 qemu_chr_fe_set_echo(&mon->chr, true);
4570 json_message_parser_init(&mon->qmp.parser, handle_qmp_command,
4572 if (mon->use_io_thread) {
4574 * Make sure the old iowatch is gone. It's possible when
4575 * e.g. the chardev is in client mode, with wait=on.
4577 remove_fd_in_watch(chr);
4579 * We can't call qemu_chr_fe_set_handlers() directly here
4580 * since chardev might be running in the monitor I/O
4581 * thread. Schedule a bottom half.
4583 aio_bh_schedule_oneshot(monitor_get_aio_context(),
4584 monitor_qmp_setup_handlers_bh, mon);
4585 /* The bottom half will add @mon to @mon_list */
4588 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read,
4589 monitor_qmp_read, monitor_qmp_event,
4590 NULL, mon, NULL, true);
4593 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read,
4594 monitor_event, NULL, mon, NULL, true);
4597 monitor_list_append(mon);
4600 void monitor_cleanup(void)
4602 Monitor *mon, *next;
4605 * We need to explicitly stop the I/O thread (but not destroy it),
4606 * clean up the monitor resources, then destroy the I/O thread since
4607 * we need to unregister from chardev below in
4608 * monitor_data_destroy(), and chardev is not thread-safe yet
4610 iothread_stop(mon_iothread);
4612 /* Flush output buffers and destroy monitors */
4613 qemu_mutex_lock(&monitor_lock);
4614 QTAILQ_FOREACH_SAFE(mon, &mon_list, entry, next) {
4615 QTAILQ_REMOVE(&mon_list, mon, entry);
4617 monitor_data_destroy(mon);
4620 qemu_mutex_unlock(&monitor_lock);
4622 /* QEMUBHs needs to be deleted before destroying the I/O thread */
4623 qemu_bh_delete(qmp_dispatcher_bh);
4624 qmp_dispatcher_bh = NULL;
4626 iothread_destroy(mon_iothread);
4627 mon_iothread = NULL;
4630 QemuOptsList qemu_mon_opts = {
4632 .implied_opt_name = "chardev",
4633 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4637 .type = QEMU_OPT_STRING,
4640 .type = QEMU_OPT_STRING,
4643 .type = QEMU_OPT_BOOL,
4646 .type = QEMU_OPT_BOOL,
4648 { /* end of list */ }
4653 void qmp_rtc_reset_reinjection(Error **errp)
4655 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4658 SevInfo *qmp_query_sev(Error **errp)
4660 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev");
4664 SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp)
4666 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-launch-measure");
4670 SevCapability *qmp_query_sev_capabilities(Error **errp)
4672 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-capabilities");
4677 #ifndef TARGET_S390X
4678 void qmp_dump_skeys(const char *filename, Error **errp)
4680 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4685 GICCapabilityList *qmp_query_gic_capabilities(Error **errp)
4687 error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities");
4692 HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
4694 MachineState *ms = MACHINE(qdev_get_machine());
4695 MachineClass *mc = MACHINE_GET_CLASS(ms);
4697 if (!mc->has_hotpluggable_cpus) {
4698 error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus");
4702 return machine_query_hotpluggable_cpus(ms);