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"
29 #include "monitor/qdev.h"
31 #include "hw/pci/pci.h"
32 #include "sysemu/watchdog.h"
33 #include "hw/loader.h"
34 #include "exec/gdbstub.h"
36 #include "net/slirp.h"
37 #include "chardev/char-fe.h"
38 #include "chardev/char-io.h"
39 #include "chardev/char-mux.h"
40 #include "ui/qemu-spice.h"
41 #include "sysemu/numa.h"
42 #include "monitor/monitor.h"
43 #include "qemu/config-file.h"
44 #include "qemu/readline.h"
45 #include "ui/console.h"
47 #include "sysemu/blockdev.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-streamer.h"
62 #include "qapi/qmp/json-parser.h"
63 #include "qapi/qmp/qlist.h"
64 #include "qom/object_interfaces.h"
65 #include "trace-root.h"
66 #include "trace/control.h"
67 #include "monitor/hmp-target.h"
68 #ifdef CONFIG_TRACE_SIMPLE
69 #include "trace/simple.h"
71 #include "exec/memory.h"
72 #include "exec/exec-all.h"
74 #include "qemu/option.h"
76 #include "qemu/thread.h"
77 #include "block/qapi.h"
78 #include "qapi/qapi-commands.h"
79 #include "qapi/qapi-events.h"
80 #include "qapi/error.h"
81 #include "qapi/qmp-event.h"
82 #include "qapi/qapi-introspect.h"
83 #include "sysemu/qtest.h"
84 #include "sysemu/cpus.h"
85 #include "sysemu/iothread.h"
86 #include "qemu/cutils.h"
88 #if defined(TARGET_S390X)
89 #include "hw/s390x/storage-keys.h"
90 #include "hw/s390x/storage-attributes.h"
97 * 'B' block device name
98 * 's' string (accept optional quote)
99 * 'S' it just appends the rest of the string (accept optional quote)
100 * 'O' option string of the form NAME=VALUE,...
101 * parsed according to QemuOptsList given by its name
102 * Example: 'device:O' uses qemu_device_opts.
103 * Restriction: only lists with empty desc are supported
104 * TODO lift the restriction
106 * 'l' target long (32 or 64 bit)
107 * 'M' Non-negative target long (32 or 64 bit), in user mode the
108 * value is multiplied by 2^20 (think Mebibyte)
109 * 'o' octets (aka bytes)
110 * user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
111 * K, k suffix, which multiplies the value by 2^60 for suffixes E
112 * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
113 * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
115 * user mode accepts an optional ms, us, ns suffix,
116 * which divides the value by 1e3, 1e6, 1e9, respectively
117 * '/' optional gdb-like print format (like "/10x")
119 * '?' optional type (for all types, except '/')
120 * '.' other form of optional type (for 'i' and 'l')
122 * user mode accepts "on" or "off"
123 * '-' optional parameter (eg. '-f')
127 typedef struct mon_cmd_t {
129 const char *args_type;
132 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 * When command qmp_capabilities succeeds, we go into command
174 QmpCommandList *commands;
175 bool qmp_caps[QMP_CAPABILITY__MAX];
177 * Protects qmp request/response queue. Please take monitor_lock
178 * first when used together.
180 QemuMutex qmp_queue_lock;
181 /* Input queue that holds all the parsed QMP requests */
182 GQueue *qmp_requests;
183 /* Output queue contains all the QMP responses in order */
184 GQueue *qmp_responses;
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 */
211 /* We can't access guest memory when holding the lock */
216 /* Read under either BQL or out_lock, written with BQL+out_lock. */
222 BlockCompletionFunc *password_completion_cb;
223 void *password_opaque;
224 mon_cmd_t *cmd_table;
225 QLIST_HEAD(,mon_fd_t) fds;
226 QTAILQ_ENTRY(Monitor) entry;
229 /* Let's add monitor global variables to this struct. */
231 IOThread *mon_iothread;
232 /* Bottom half to dispatch the requests received from IO thread */
233 QEMUBH *qmp_dispatcher_bh;
234 /* Bottom half to deliver the responses back to clients */
235 QEMUBH *qmp_respond_bh;
239 /* Owner of the request */
241 /* "id" field of the request */
243 /* Request object to be handled */
246 * Whether we need to resume the monitor afterward. This flag is
247 * used to emulate the old QMP server behavior that the current
248 * command must be completed before execution of the next one.
252 typedef struct QMPRequest QMPRequest;
254 /* QMP checker flags */
255 #define QMP_ACCEPT_UNKNOWNS 1
257 /* Protects mon_list, monitor_event_state. */
258 static QemuMutex monitor_lock;
260 static QTAILQ_HEAD(mon_list, Monitor) mon_list;
261 static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
262 static int mon_refcount;
264 static mon_cmd_t mon_cmds[];
265 static mon_cmd_t info_cmds[];
267 QmpCommandList qmp_commands, qmp_cap_negotiation_commands;
271 static QEMUClockType event_clock_type = QEMU_CLOCK_REALTIME;
273 static void monitor_command_cb(void *opaque, const char *cmdline,
274 void *readline_opaque);
277 * Is @mon a QMP monitor?
279 static inline bool monitor_is_qmp(const Monitor *mon)
281 return (mon->flags & MONITOR_USE_CONTROL);
285 * Whether @mon is using readline? Note: not all HMP monitors use
286 * readline, e.g., gdbserver has a non-interactive HMP monitor, so
287 * readline is not used there.
289 static inline bool monitor_uses_readline(const Monitor *mon)
291 return mon->flags & MONITOR_USE_READLINE;
294 static inline bool monitor_is_hmp_non_interactive(const Monitor *mon)
296 return !monitor_is_qmp(mon) && !monitor_uses_readline(mon);
300 * Is the current monitor, if any, a QMP monitor?
302 bool monitor_cur_is_qmp(void)
304 return cur_mon && monitor_is_qmp(cur_mon);
307 void monitor_read_command(Monitor *mon, int show_prompt)
312 readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
314 readline_show_prompt(mon->rs);
317 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
321 readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
322 /* prompt is printed on return from the command handler */
325 monitor_printf(mon, "terminal does not support password prompting\n");
330 static void qmp_request_free(QMPRequest *req)
332 qobject_decref(req->id);
333 qobject_decref(req->req);
337 /* Must with the mon->qmp.qmp_queue_lock held */
338 static void monitor_qmp_cleanup_req_queue_locked(Monitor *mon)
340 while (!g_queue_is_empty(mon->qmp.qmp_requests)) {
341 qmp_request_free(g_queue_pop_head(mon->qmp.qmp_requests));
345 /* Must with the mon->qmp.qmp_queue_lock held */
346 static void monitor_qmp_cleanup_resp_queue_locked(Monitor *mon)
348 while (!g_queue_is_empty(mon->qmp.qmp_responses)) {
349 qobject_decref(g_queue_pop_head(mon->qmp.qmp_responses));
353 static void monitor_qmp_cleanup_queues(Monitor *mon)
355 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
356 monitor_qmp_cleanup_req_queue_locked(mon);
357 monitor_qmp_cleanup_resp_queue_locked(mon);
358 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
362 static void monitor_flush_locked(Monitor *mon);
364 static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
367 Monitor *mon = opaque;
369 qemu_mutex_lock(&mon->out_lock);
371 monitor_flush_locked(mon);
372 qemu_mutex_unlock(&mon->out_lock);
376 /* Called with mon->out_lock held. */
377 static void monitor_flush_locked(Monitor *mon)
383 if (mon->skip_flush) {
387 buf = qstring_get_str(mon->outbuf);
388 len = qstring_get_length(mon->outbuf);
390 if (len && !mon->mux_out) {
391 rc = qemu_chr_fe_write(&mon->chr, (const uint8_t *) buf, len);
392 if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
393 /* all flushed or error */
394 QDECREF(mon->outbuf);
395 mon->outbuf = qstring_new();
400 QString *tmp = qstring_from_str(buf + rc);
401 QDECREF(mon->outbuf);
404 if (mon->out_watch == 0) {
406 qemu_chr_fe_add_watch(&mon->chr, G_IO_OUT | G_IO_HUP,
407 monitor_unblocked, mon);
412 void monitor_flush(Monitor *mon)
414 qemu_mutex_lock(&mon->out_lock);
415 monitor_flush_locked(mon);
416 qemu_mutex_unlock(&mon->out_lock);
419 /* flush at every end of line */
420 static void monitor_puts(Monitor *mon, const char *str)
424 qemu_mutex_lock(&mon->out_lock);
430 qstring_append_chr(mon->outbuf, '\r');
432 qstring_append_chr(mon->outbuf, c);
434 monitor_flush_locked(mon);
437 qemu_mutex_unlock(&mon->out_lock);
440 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
447 if (monitor_is_qmp(mon)) {
451 buf = g_strdup_vprintf(fmt, ap);
452 monitor_puts(mon, buf);
456 void monitor_printf(Monitor *mon, const char *fmt, ...)
460 monitor_vprintf(mon, fmt, ap);
464 int monitor_fprintf(FILE *stream, const char *fmt, ...)
468 monitor_vprintf((Monitor *)stream, fmt, ap);
473 static void monitor_json_emitter_raw(Monitor *mon,
478 json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
479 qobject_to_json(data);
480 assert(json != NULL);
482 qstring_append_chr(json, '\n');
483 monitor_puts(mon, qstring_get_str(json));
488 static void monitor_json_emitter(Monitor *mon, QObject *data)
490 if (mon->use_io_thr) {
492 * If using IO thread, we need to queue the item so that IO
493 * thread will do the rest for us. Take refcount so that
494 * caller won't free the data (which will be finally freed in
497 qobject_incref(data);
498 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
499 g_queue_push_tail(mon->qmp.qmp_responses, (void *)data);
500 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
501 qemu_bh_schedule(mon_global.qmp_respond_bh);
504 * If not using monitor IO thread, then we are in main thread.
505 * Do the emission right away.
507 monitor_json_emitter_raw(mon, data);
515 typedef struct QMPResponse QMPResponse;
518 * Return one QMPResponse. The response is only valid if
519 * response.data is not NULL.
521 static QMPResponse monitor_qmp_response_pop_one(void)
524 QObject *data = NULL;
526 qemu_mutex_lock(&monitor_lock);
527 QTAILQ_FOREACH(mon, &mon_list, entry) {
528 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
529 data = g_queue_pop_head(mon->qmp.qmp_responses);
530 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
535 qemu_mutex_unlock(&monitor_lock);
536 return (QMPResponse) { .mon = mon, .data = data };
539 static void monitor_qmp_bh_responder(void *opaque)
541 QMPResponse response;
544 response = monitor_qmp_response_pop_one();
545 if (!response.data) {
548 monitor_json_emitter_raw(response.mon, response.data);
549 qobject_decref(response.data);
553 static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = {
554 /* Limit guest-triggerable events to 1 per second */
555 [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
556 [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
557 [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
558 [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
559 [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
560 [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
563 GHashTable *monitor_qapi_event_state;
566 * Emits the event to every monitor instance, @event is only used for trace
567 * Called with monitor_lock held.
569 static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
573 trace_monitor_protocol_event_emit(event, qdict);
574 QTAILQ_FOREACH(mon, &mon_list, entry) {
575 if (monitor_is_qmp(mon)
576 && mon->qmp.commands != &qmp_cap_negotiation_commands) {
577 monitor_json_emitter(mon, QOBJECT(qdict));
582 static void monitor_qapi_event_handler(void *opaque);
585 * Queue a new event for emission to Monitor instances,
586 * applying any rate limiting if required.
589 monitor_qapi_event_queue(QAPIEvent event, QDict *qdict, Error **errp)
591 MonitorQAPIEventConf *evconf;
592 MonitorQAPIEventState *evstate;
594 assert(event < QAPI_EVENT__MAX);
595 evconf = &monitor_qapi_event_conf[event];
596 trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
598 qemu_mutex_lock(&monitor_lock);
601 /* Unthrottled event */
602 monitor_qapi_event_emit(event, qdict);
604 QDict *data = qobject_to(QDict, qdict_get(qdict, "data"));
605 MonitorQAPIEventState key = { .event = event, .data = data };
607 evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
608 assert(!evstate || timer_pending(evstate->timer));
612 * Timer is pending for (at least) evconf->rate ns after
613 * last send. Store event for sending when timer fires,
614 * replacing a prior stored event if any.
616 QDECREF(evstate->qdict);
617 evstate->qdict = qdict;
618 QINCREF(evstate->qdict);
621 * Last send was (at least) evconf->rate ns ago.
622 * Send immediately, and arm the timer to call
623 * monitor_qapi_event_handler() in evconf->rate ns. Any
624 * events arriving before then will be delayed until then.
626 int64_t now = qemu_clock_get_ns(event_clock_type);
628 monitor_qapi_event_emit(event, qdict);
630 evstate = g_new(MonitorQAPIEventState, 1);
631 evstate->event = event;
632 evstate->data = data;
633 QINCREF(evstate->data);
634 evstate->qdict = NULL;
635 evstate->timer = timer_new_ns(event_clock_type,
636 monitor_qapi_event_handler,
638 g_hash_table_add(monitor_qapi_event_state, evstate);
639 timer_mod_ns(evstate->timer, now + evconf->rate);
643 qemu_mutex_unlock(&monitor_lock);
647 * This function runs evconf->rate ns after sending a throttled
649 * If another event has since been stored, send it.
651 static void monitor_qapi_event_handler(void *opaque)
653 MonitorQAPIEventState *evstate = opaque;
654 MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
656 trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
657 qemu_mutex_lock(&monitor_lock);
659 if (evstate->qdict) {
660 int64_t now = qemu_clock_get_ns(event_clock_type);
662 monitor_qapi_event_emit(evstate->event, evstate->qdict);
663 QDECREF(evstate->qdict);
664 evstate->qdict = NULL;
665 timer_mod_ns(evstate->timer, now + evconf->rate);
667 g_hash_table_remove(monitor_qapi_event_state, evstate);
668 QDECREF(evstate->data);
669 timer_free(evstate->timer);
673 qemu_mutex_unlock(&monitor_lock);
676 static unsigned int qapi_event_throttle_hash(const void *key)
678 const MonitorQAPIEventState *evstate = key;
679 unsigned int hash = evstate->event * 255;
681 if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
682 hash += g_str_hash(qdict_get_str(evstate->data, "id"));
685 if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
686 hash += g_str_hash(qdict_get_str(evstate->data, "node-name"));
692 static gboolean qapi_event_throttle_equal(const void *a, const void *b)
694 const MonitorQAPIEventState *eva = a;
695 const MonitorQAPIEventState *evb = b;
697 if (eva->event != evb->event) {
701 if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
702 return !strcmp(qdict_get_str(eva->data, "id"),
703 qdict_get_str(evb->data, "id"));
706 if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
707 return !strcmp(qdict_get_str(eva->data, "node-name"),
708 qdict_get_str(evb->data, "node-name"));
714 static void monitor_qapi_event_init(void)
716 if (qtest_enabled()) {
717 event_clock_type = QEMU_CLOCK_VIRTUAL;
720 monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
721 qapi_event_throttle_equal);
722 qmp_event_set_func_emit(monitor_qapi_event_queue);
725 static void handle_hmp_command(Monitor *mon, const char *cmdline);
727 static void monitor_data_init(Monitor *mon, bool skip_flush,
730 memset(mon, 0, sizeof(Monitor));
731 qemu_mutex_init(&mon->out_lock);
732 qemu_mutex_init(&mon->qmp.qmp_queue_lock);
733 mon->outbuf = qstring_new();
734 /* Use *mon_cmds by default. */
735 mon->cmd_table = mon_cmds;
736 mon->skip_flush = skip_flush;
737 mon->use_io_thr = use_io_thr;
738 mon->qmp.qmp_requests = g_queue_new();
739 mon->qmp.qmp_responses = g_queue_new();
742 static void monitor_data_destroy(Monitor *mon)
744 g_free(mon->mon_cpu_path);
745 qemu_chr_fe_deinit(&mon->chr, false);
746 if (monitor_is_qmp(mon)) {
747 json_message_parser_destroy(&mon->qmp.parser);
749 readline_free(mon->rs);
750 QDECREF(mon->outbuf);
751 qemu_mutex_destroy(&mon->out_lock);
752 qemu_mutex_destroy(&mon->qmp.qmp_queue_lock);
753 monitor_qmp_cleanup_req_queue_locked(mon);
754 monitor_qmp_cleanup_resp_queue_locked(mon);
755 g_queue_free(mon->qmp.qmp_requests);
756 g_queue_free(mon->qmp.qmp_responses);
759 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
760 int64_t cpu_index, Error **errp)
763 Monitor *old_mon, hmp;
765 monitor_data_init(&hmp, true, false);
771 int ret = monitor_set_cpu(cpu_index);
774 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
780 handle_hmp_command(&hmp, command_line);
783 qemu_mutex_lock(&hmp.out_lock);
784 if (qstring_get_length(hmp.outbuf) > 0) {
785 output = g_strdup(qstring_get_str(hmp.outbuf));
787 output = g_strdup("");
789 qemu_mutex_unlock(&hmp.out_lock);
792 monitor_data_destroy(&hmp);
796 static int compare_cmd(const char *name, const char *list)
798 const char *p, *pstart;
806 p = pstart + strlen(pstart);
807 if ((p - pstart) == len && !memcmp(pstart, name, len))
816 static int get_str(char *buf, int buf_size, const char **pp)
824 while (qemu_isspace(*p)) {
835 while (*p != '\0' && *p != '\"') {
851 printf("unsupported escape code: '\\%c'\n", c);
854 if ((q - buf) < buf_size - 1) {
858 if ((q - buf) < buf_size - 1) {
865 printf("unterminated string\n");
870 while (*p != '\0' && !qemu_isspace(*p)) {
871 if ((q - buf) < buf_size - 1) {
884 static void free_cmdline_args(char **args, int nb_args)
888 assert(nb_args <= MAX_ARGS);
890 for (i = 0; i < nb_args; i++) {
897 * Parse the command line to get valid args.
898 * @cmdline: command line to be parsed.
899 * @pnb_args: location to store the number of args, must NOT be NULL.
900 * @args: location to store the args, which should be freed by caller, must
903 * Returns 0 on success, negative on failure.
905 * NOTE: this parser is an approximate form of the real command parser. Number
906 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
907 * return with failure.
909 static int parse_cmdline(const char *cmdline,
910 int *pnb_args, char **args)
919 while (qemu_isspace(*p)) {
925 if (nb_args >= MAX_ARGS) {
928 ret = get_str(buf, sizeof(buf), &p);
932 args[nb_args] = g_strdup(buf);
939 free_cmdline_args(args, nb_args);
943 static void help_cmd_dump_one(Monitor *mon,
944 const mon_cmd_t *cmd,
950 for (i = 0; i < prefix_args_nb; i++) {
951 monitor_printf(mon, "%s ", prefix_args[i]);
953 monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
956 /* @args[@arg_index] is the valid command need to find in @cmds */
957 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
958 char **args, int nb_args, int arg_index)
960 const mon_cmd_t *cmd;
962 /* No valid arg need to compare with, dump all in *cmds */
963 if (arg_index >= nb_args) {
964 for (cmd = cmds; cmd->name != NULL; cmd++) {
965 help_cmd_dump_one(mon, cmd, args, arg_index);
970 /* Find one entry to dump */
971 for (cmd = cmds; cmd->name != NULL; cmd++) {
972 if (compare_cmd(args[arg_index], cmd->name)) {
973 if (cmd->sub_table) {
974 /* continue with next arg */
975 help_cmd_dump(mon, cmd->sub_table,
976 args, nb_args, arg_index + 1);
978 help_cmd_dump_one(mon, cmd, args, arg_index);
985 static void help_cmd(Monitor *mon, const char *name)
987 char *args[MAX_ARGS];
990 /* 1. parse user input */
992 /* special case for log, directly dump and return */
993 if (!strcmp(name, "log")) {
994 const QEMULogItem *item;
995 monitor_printf(mon, "Log items (comma separated):\n");
996 monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
997 for (item = qemu_log_items; item->mask != 0; item++) {
998 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
1003 if (parse_cmdline(name, &nb_args, args) < 0) {
1008 /* 2. dump the contents according to parsed args */
1009 help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
1011 free_cmdline_args(args, nb_args);
1014 static void do_help_cmd(Monitor *mon, const QDict *qdict)
1016 help_cmd(mon, qdict_get_try_str(qdict, "name"));
1019 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
1021 const char *tp_name = qdict_get_str(qdict, "name");
1022 bool new_state = qdict_get_bool(qdict, "option");
1023 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1024 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1025 Error *local_err = NULL;
1028 monitor_printf(mon, "argument vcpu must be positive");
1032 qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err);
1034 error_report_err(local_err);
1038 #ifdef CONFIG_TRACE_SIMPLE
1039 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
1041 const char *op = qdict_get_try_str(qdict, "op");
1042 const char *arg = qdict_get_try_str(qdict, "arg");
1045 st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
1046 } else if (!strcmp(op, "on")) {
1047 st_set_trace_file_enabled(true);
1048 } else if (!strcmp(op, "off")) {
1049 st_set_trace_file_enabled(false);
1050 } else if (!strcmp(op, "flush")) {
1051 st_flush_trace_buffer();
1052 } else if (!strcmp(op, "set")) {
1054 st_set_trace_file(arg);
1057 monitor_printf(mon, "unexpected argument \"%s\"\n", op);
1058 help_cmd(mon, "trace-file");
1063 static void hmp_info_help(Monitor *mon, const QDict *qdict)
1065 help_cmd(mon, "info");
1068 static void query_commands_cb(QmpCommand *cmd, void *opaque)
1070 CommandInfoList *info, **list = opaque;
1072 if (!cmd->enabled) {
1076 info = g_malloc0(sizeof(*info));
1077 info->value = g_malloc0(sizeof(*info->value));
1078 info->value->name = g_strdup(cmd->name);
1083 CommandInfoList *qmp_query_commands(Error **errp)
1085 CommandInfoList *list = NULL;
1087 qmp_for_each_command(cur_mon->qmp.commands, query_commands_cb, &list);
1092 EventInfoList *qmp_query_events(Error **errp)
1094 EventInfoList *info, *ev_list = NULL;
1097 for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
1098 const char *event_name = QAPIEvent_str(e);
1099 assert(event_name != NULL);
1100 info = g_malloc0(sizeof(*info));
1101 info->value = g_malloc0(sizeof(*info->value));
1102 info->value->name = g_strdup(event_name);
1104 info->next = ev_list;
1112 * Minor hack: generated marshalling suppressed for this command
1113 * ('gen': false in the schema) so we can parse the JSON string
1114 * directly into QObject instead of first parsing it with
1115 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
1116 * to QObject with generated output marshallers, every time. Instead,
1117 * we do it in test-qobject-input-visitor.c, just to make sure
1118 * qapi-gen.py's output actually conforms to the schema.
1120 static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
1123 *ret_data = qobject_from_qlit(&qmp_schema_qlit);
1127 * We used to define commands in qmp-commands.hx in addition to the
1128 * QAPI schema. This permitted defining some of them only in certain
1129 * configurations. query-commands has always reflected that (good,
1130 * because it lets QMP clients figure out what's actually available),
1131 * while query-qmp-schema never did (not so good). This function is a
1132 * hack to keep the configuration-specific commands defined exactly as
1133 * before, even though qmp-commands.hx is gone.
1135 * FIXME Educate the QAPI schema on configuration-specific commands,
1136 * and drop this hack.
1138 static void qmp_unregister_commands_hack(void)
1140 #ifndef CONFIG_SPICE
1141 qmp_unregister_command(&qmp_commands, "query-spice");
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,
1187 qmp_register_command(&qmp_commands, "device_add", qmp_device_add,
1189 qmp_register_command(&qmp_commands, "netdev_add", qmp_netdev_add,
1192 qmp_unregister_commands_hack();
1194 QTAILQ_INIT(&qmp_cap_negotiation_commands);
1195 qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
1196 qmp_marshal_qmp_capabilities, QCO_NO_OPTIONS);
1199 static bool qmp_cap_enabled(Monitor *mon, QMPCapability cap)
1201 return mon->qmp.qmp_caps[cap];
1204 static bool qmp_oob_enabled(Monitor *mon)
1206 return qmp_cap_enabled(mon, QMP_CAPABILITY_OOB);
1209 static void qmp_caps_check(Monitor *mon, QMPCapabilityList *list,
1212 for (; list; list = list->next) {
1213 assert(list->value < QMP_CAPABILITY__MAX);
1214 switch (list->value) {
1215 case QMP_CAPABILITY_OOB:
1216 if (!mon->use_io_thr) {
1218 * Out-Of-Band only works with monitors that are
1219 * running on dedicated IOThread.
1221 error_setg(errp, "This monitor does not support "
1222 "Out-Of-Band (OOB)");
1232 /* This function should only be called after capabilities are checked. */
1233 static void qmp_caps_apply(Monitor *mon, QMPCapabilityList *list)
1235 for (; list; list = list->next) {
1236 mon->qmp.qmp_caps[list->value] = true;
1241 * Return true if check successful, or false otherwise. When false is
1242 * returned, detailed error will be in errp if provided.
1244 static bool qmp_cmd_oob_check(Monitor *mon, QDict *req, Error **errp)
1246 const char *command;
1249 command = qdict_get_try_str(req, "execute");
1251 error_setg(errp, "Command field 'execute' missing");
1255 cmd = qmp_find_command(mon->qmp.commands, command);
1257 if (mon->qmp.commands == &qmp_cap_negotiation_commands) {
1258 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
1259 "Expecting capabilities negotiation "
1260 "with 'qmp_capabilities'");
1262 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
1263 "The command %s has not been found", command);
1268 if (qmp_is_oob(req)) {
1269 if (!qmp_oob_enabled(mon)) {
1270 error_setg(errp, "Please enable Out-Of-Band first "
1271 "for the session during capabilities negotiation");
1274 if (!(cmd->options & QCO_ALLOW_OOB)) {
1275 error_setg(errp, "The command %s does not support OOB",
1284 void qmp_qmp_capabilities(bool has_enable, QMPCapabilityList *enable,
1287 Error *local_err = NULL;
1289 if (cur_mon->qmp.commands == &qmp_commands) {
1290 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
1291 "Capabilities negotiation is already complete, command "
1296 /* Enable QMP capabilities provided by the client if applicable. */
1298 qmp_caps_check(cur_mon, enable, &local_err);
1301 * Failed check on any of the capabilities will fail the
1302 * entire command (and thus not apply any of the other
1303 * capabilities that were also requested).
1305 error_propagate(errp, local_err);
1308 qmp_caps_apply(cur_mon, enable);
1311 cur_mon->qmp.commands = &qmp_commands;
1314 /* set the current CPU defined by the user */
1315 int monitor_set_cpu(int cpu_index)
1319 cpu = qemu_get_cpu(cpu_index);
1323 g_free(cur_mon->mon_cpu_path);
1324 cur_mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu));
1328 static CPUState *mon_get_cpu_sync(bool synchronize)
1332 if (cur_mon->mon_cpu_path) {
1333 cpu = (CPUState *) object_resolve_path_type(cur_mon->mon_cpu_path,
1336 g_free(cur_mon->mon_cpu_path);
1337 cur_mon->mon_cpu_path = NULL;
1340 if (!cur_mon->mon_cpu_path) {
1344 monitor_set_cpu(first_cpu->cpu_index);
1348 cpu_synchronize_state(cpu);
1353 CPUState *mon_get_cpu(void)
1355 return mon_get_cpu_sync(true);
1358 CPUArchState *mon_get_cpu_env(void)
1360 CPUState *cs = mon_get_cpu();
1362 return cs ? cs->env_ptr : NULL;
1365 int monitor_get_cpu_index(void)
1367 CPUState *cs = mon_get_cpu_sync(false);
1369 return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX;
1372 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
1374 bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false);
1379 monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index);
1380 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1386 monitor_printf(mon, "No CPU available\n");
1390 cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1395 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
1397 if (!tcg_enabled()) {
1398 error_report("JIT information is only available with accel=tcg");
1402 dump_exec_info((FILE *)mon, monitor_fprintf);
1403 dump_drift_info((FILE *)mon, monitor_fprintf);
1406 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
1408 dump_opcount_info((FILE *)mon, monitor_fprintf);
1412 static void hmp_info_history(Monitor *mon, const QDict *qdict)
1421 str = readline_get_history(mon->rs, i);
1424 monitor_printf(mon, "%d: '%s'\n", i, str);
1429 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
1431 CPUState *cs = mon_get_cpu();
1434 monitor_printf(mon, "No CPU available\n");
1437 cpu_dump_statistics(cs, (FILE *)mon, &monitor_fprintf, 0);
1440 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
1442 const char *name = qdict_get_try_str(qdict, "name");
1443 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1444 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1445 TraceEventInfoList *events;
1446 TraceEventInfoList *elem;
1447 Error *local_err = NULL;
1453 monitor_printf(mon, "argument vcpu must be positive");
1457 events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err);
1459 error_report_err(local_err);
1463 for (elem = events; elem != NULL; elem = elem->next) {
1464 monitor_printf(mon, "%s : state %u\n",
1466 elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
1468 qapi_free_TraceEventInfoList(events);
1471 void qmp_client_migrate_info(const char *protocol, const char *hostname,
1472 bool has_port, int64_t port,
1473 bool has_tls_port, int64_t tls_port,
1474 bool has_cert_subject, const char *cert_subject,
1477 if (strcmp(protocol, "spice") == 0) {
1478 if (!qemu_using_spice(errp)) {
1482 if (!has_port && !has_tls_port) {
1483 error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
1487 if (qemu_spice_migrate_info(hostname,
1488 has_port ? port : -1,
1489 has_tls_port ? tls_port : -1,
1491 error_setg(errp, QERR_UNDEFINED_ERROR);
1497 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
1500 static void hmp_logfile(Monitor *mon, const QDict *qdict)
1504 qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
1506 error_report_err(err);
1510 static void hmp_log(Monitor *mon, const QDict *qdict)
1513 const char *items = qdict_get_str(qdict, "items");
1515 if (!strcmp(items, "none")) {
1518 mask = qemu_str_to_log_mask(items);
1520 help_cmd(mon, "log");
1527 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
1529 const char *option = qdict_get_try_str(qdict, "option");
1530 if (!option || !strcmp(option, "on")) {
1532 } else if (!strcmp(option, "off")) {
1535 monitor_printf(mon, "unexpected option %s\n", option);
1539 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
1541 const char *device = qdict_get_try_str(qdict, "device");
1543 device = "tcp::" DEFAULT_GDBSTUB_PORT;
1544 if (gdbserver_start(device) < 0) {
1545 monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1547 } else if (strcmp(device, "none") == 0) {
1548 monitor_printf(mon, "Disabled gdbserver\n");
1550 monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1555 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
1557 const char *action = qdict_get_str(qdict, "action");
1558 if (select_watchdog_action(action) == -1) {
1559 monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1563 static void monitor_printc(Monitor *mon, int c)
1565 monitor_printf(mon, "'");
1568 monitor_printf(mon, "\\'");
1571 monitor_printf(mon, "\\\\");
1574 monitor_printf(mon, "\\n");
1577 monitor_printf(mon, "\\r");
1580 if (c >= 32 && c <= 126) {
1581 monitor_printf(mon, "%c", c);
1583 monitor_printf(mon, "\\x%02x", c);
1587 monitor_printf(mon, "'");
1590 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1591 hwaddr addr, int is_physical)
1593 int l, line_size, i, max_digits, len;
1596 CPUState *cs = mon_get_cpu();
1598 if (!cs && (format == 'i' || !is_physical)) {
1599 monitor_printf(mon, "Can not dump without CPU\n");
1603 if (format == 'i') {
1604 monitor_disas(mon, cs, addr, count, is_physical);
1608 len = wsize * count;
1617 max_digits = DIV_ROUND_UP(wsize * 8, 3);
1621 max_digits = (wsize * 8) / 4;
1625 max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33);
1634 monitor_printf(mon, TARGET_FMT_plx ":", addr);
1636 monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1641 cpu_physical_memory_read(addr, buf, l);
1643 if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) {
1644 monitor_printf(mon, " Cannot access memory\n");
1653 v = ldub_p(buf + i);
1656 v = lduw_p(buf + i);
1659 v = (uint32_t)ldl_p(buf + i);
1665 monitor_printf(mon, " ");
1668 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1671 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1674 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1677 monitor_printf(mon, "%*" PRId64, max_digits, v);
1680 monitor_printc(mon, v);
1685 monitor_printf(mon, "\n");
1691 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
1693 int count = qdict_get_int(qdict, "count");
1694 int format = qdict_get_int(qdict, "format");
1695 int size = qdict_get_int(qdict, "size");
1696 target_long addr = qdict_get_int(qdict, "addr");
1698 memory_dump(mon, count, format, size, addr, 0);
1701 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
1703 int count = qdict_get_int(qdict, "count");
1704 int format = qdict_get_int(qdict, "format");
1705 int size = qdict_get_int(qdict, "size");
1706 hwaddr addr = qdict_get_int(qdict, "addr");
1708 memory_dump(mon, count, format, size, addr, 1);
1711 static void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, Error **errp)
1713 MemoryRegionSection mrs = memory_region_find(get_system_memory(),
1717 error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr);
1721 if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) {
1722 error_setg(errp, "Memory at address 0x%" HWADDR_PRIx "is not RAM", addr);
1723 memory_region_unref(mrs.mr);
1728 return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region);
1731 static void hmp_gpa2hva(Monitor *mon, const QDict *qdict)
1733 hwaddr addr = qdict_get_int(qdict, "addr");
1734 Error *local_err = NULL;
1735 MemoryRegion *mr = NULL;
1738 ptr = gpa2hva(&mr, addr, &local_err);
1740 error_report_err(local_err);
1744 monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx
1746 addr, mr->name, ptr);
1748 memory_region_unref(mr);
1752 static uint64_t vtop(void *ptr, Error **errp)
1756 uintptr_t addr = (uintptr_t) ptr;
1757 uintptr_t pagesize = getpagesize();
1758 off_t offset = addr / pagesize * sizeof(pinfo);
1761 fd = open("/proc/self/pagemap", O_RDONLY);
1763 error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap");
1767 /* Force copy-on-write if necessary. */
1768 atomic_add((uint8_t *)ptr, 0);
1770 if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) {
1771 error_setg_errno(errp, errno, "Cannot read pagemap");
1774 if ((pinfo & (1ull << 63)) == 0) {
1775 error_setg(errp, "Page not present");
1778 ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1));
1785 static void hmp_gpa2hpa(Monitor *mon, const QDict *qdict)
1787 hwaddr addr = qdict_get_int(qdict, "addr");
1788 Error *local_err = NULL;
1789 MemoryRegion *mr = NULL;
1793 ptr = gpa2hva(&mr, addr, &local_err);
1795 error_report_err(local_err);
1799 physaddr = vtop(ptr, &local_err);
1801 error_report_err(local_err);
1803 monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx
1804 " (%s) is 0x%" PRIx64 "\n",
1805 addr, mr->name, (uint64_t) physaddr);
1808 memory_region_unref(mr);
1812 static void do_print(Monitor *mon, const QDict *qdict)
1814 int format = qdict_get_int(qdict, "format");
1815 hwaddr val = qdict_get_int(qdict, "val");
1819 monitor_printf(mon, "%#" HWADDR_PRIo, val);
1822 monitor_printf(mon, "%#" HWADDR_PRIx, val);
1825 monitor_printf(mon, "%" HWADDR_PRIu, val);
1829 monitor_printf(mon, "%" HWADDR_PRId, val);
1832 monitor_printc(mon, val);
1835 monitor_printf(mon, "\n");
1838 static void hmp_sum(Monitor *mon, const QDict *qdict)
1842 uint32_t start = qdict_get_int(qdict, "start");
1843 uint32_t size = qdict_get_int(qdict, "size");
1846 for(addr = start; addr < (start + size); addr++) {
1847 uint8_t val = address_space_ldub(&address_space_memory, addr,
1848 MEMTXATTRS_UNSPECIFIED, NULL);
1849 /* BSD sum algorithm ('sum' Unix command) */
1850 sum = (sum >> 1) | (sum << 15);
1853 monitor_printf(mon, "%05d\n", sum);
1856 static int mouse_button_state;
1858 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
1860 int dx, dy, dz, button;
1861 const char *dx_str = qdict_get_str(qdict, "dx_str");
1862 const char *dy_str = qdict_get_str(qdict, "dy_str");
1863 const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1865 dx = strtol(dx_str, NULL, 0);
1866 dy = strtol(dy_str, NULL, 0);
1867 qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
1868 qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
1871 dz = strtol(dz_str, NULL, 0);
1873 button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
1874 qemu_input_queue_btn(NULL, button, true);
1875 qemu_input_event_sync();
1876 qemu_input_queue_btn(NULL, button, false);
1879 qemu_input_event_sync();
1882 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
1884 static uint32_t bmap[INPUT_BUTTON__MAX] = {
1885 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
1886 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
1887 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
1889 int button_state = qdict_get_int(qdict, "button_state");
1891 if (mouse_button_state == button_state) {
1894 qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
1895 qemu_input_event_sync();
1896 mouse_button_state = button_state;
1899 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
1901 int size = qdict_get_int(qdict, "size");
1902 int addr = qdict_get_int(qdict, "addr");
1903 int has_index = qdict_haskey(qdict, "index");
1908 int index = qdict_get_int(qdict, "index");
1909 cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1917 val = cpu_inb(addr);
1921 val = cpu_inw(addr);
1925 val = cpu_inl(addr);
1929 monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1930 suffix, addr, size * 2, val);
1933 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
1935 int size = qdict_get_int(qdict, "size");
1936 int addr = qdict_get_int(qdict, "addr");
1937 int val = qdict_get_int(qdict, "val");
1939 addr &= IOPORTS_MASK;
1944 cpu_outb(addr, val);
1947 cpu_outw(addr, val);
1950 cpu_outl(addr, val);
1955 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
1957 Error *local_err = NULL;
1958 const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1960 qemu_boot_set(bootdevice, &local_err);
1962 error_report_err(local_err);
1964 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1968 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1970 bool flatview = qdict_get_try_bool(qdict, "flatview", false);
1971 bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
1973 mtree_info((fprintf_function)monitor_printf, mon, flatview, dispatch_tree);
1976 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1979 NumaNodeMem *node_mem;
1980 CpuInfoList *cpu_list, *cpu;
1982 cpu_list = qmp_query_cpus(&error_abort);
1983 node_mem = g_new0(NumaNodeMem, nb_numa_nodes);
1985 query_numa_node_mem(node_mem);
1986 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1987 for (i = 0; i < nb_numa_nodes; i++) {
1988 monitor_printf(mon, "node %d cpus:", i);
1989 for (cpu = cpu_list; cpu; cpu = cpu->next) {
1990 if (cpu->value->has_props && cpu->value->props->has_node_id &&
1991 cpu->value->props->node_id == i) {
1992 monitor_printf(mon, " %" PRIi64, cpu->value->CPU);
1995 monitor_printf(mon, "\n");
1996 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1997 node_mem[i].node_mem >> 20);
1998 monitor_printf(mon, "node %d plugged: %" PRId64 " MB\n", i,
1999 node_mem[i].node_plugged_mem >> 20);
2001 qapi_free_CpuInfoList(cpu_list);
2005 #ifdef CONFIG_PROFILER
2010 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
2012 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
2013 dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
2014 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
2015 tcg_time, tcg_time / (double)NANOSECONDS_PER_SECOND);
2020 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
2022 monitor_printf(mon, "Internal profiler not compiled\n");
2026 /* Capture support */
2027 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2029 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
2034 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2035 monitor_printf(mon, "[%d]: ", i);
2036 s->ops.info (s->opaque);
2040 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
2043 int n = qdict_get_int(qdict, "n");
2046 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2048 s->ops.destroy (s->opaque);
2049 QLIST_REMOVE (s, entries);
2056 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
2058 const char *path = qdict_get_str(qdict, "path");
2059 int has_freq = qdict_haskey(qdict, "freq");
2060 int freq = qdict_get_try_int(qdict, "freq", -1);
2061 int has_bits = qdict_haskey(qdict, "bits");
2062 int bits = qdict_get_try_int(qdict, "bits", -1);
2063 int has_channels = qdict_haskey(qdict, "nchannels");
2064 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2067 s = g_malloc0 (sizeof (*s));
2069 freq = has_freq ? freq : 44100;
2070 bits = has_bits ? bits : 16;
2071 nchannels = has_channels ? nchannels : 2;
2073 if (wav_start_capture (s, path, freq, bits, nchannels)) {
2074 monitor_printf(mon, "Failed to add wave capture\n");
2078 QLIST_INSERT_HEAD (&capture_head, s, entries);
2081 static qemu_acl *find_acl(Monitor *mon, const char *name)
2083 qemu_acl *acl = qemu_acl_find(name);
2086 monitor_printf(mon, "acl: unknown list '%s'\n", name);
2091 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
2093 const char *aclname = qdict_get_str(qdict, "aclname");
2094 qemu_acl *acl = find_acl(mon, aclname);
2095 qemu_acl_entry *entry;
2099 monitor_printf(mon, "policy: %s\n",
2100 acl->defaultDeny ? "deny" : "allow");
2101 QTAILQ_FOREACH(entry, &acl->entries, next) {
2103 monitor_printf(mon, "%d: %s %s\n", i,
2104 entry->deny ? "deny" : "allow", entry->match);
2109 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
2111 const char *aclname = qdict_get_str(qdict, "aclname");
2112 qemu_acl *acl = find_acl(mon, aclname);
2115 qemu_acl_reset(acl);
2116 monitor_printf(mon, "acl: removed all rules\n");
2120 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
2122 const char *aclname = qdict_get_str(qdict, "aclname");
2123 const char *policy = qdict_get_str(qdict, "policy");
2124 qemu_acl *acl = find_acl(mon, aclname);
2127 if (strcmp(policy, "allow") == 0) {
2128 acl->defaultDeny = 0;
2129 monitor_printf(mon, "acl: policy set to 'allow'\n");
2130 } else if (strcmp(policy, "deny") == 0) {
2131 acl->defaultDeny = 1;
2132 monitor_printf(mon, "acl: policy set to 'deny'\n");
2134 monitor_printf(mon, "acl: unknown policy '%s', "
2135 "expected 'deny' or 'allow'\n", policy);
2140 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
2142 const char *aclname = qdict_get_str(qdict, "aclname");
2143 const char *match = qdict_get_str(qdict, "match");
2144 const char *policy = qdict_get_str(qdict, "policy");
2145 int has_index = qdict_haskey(qdict, "index");
2146 int index = qdict_get_try_int(qdict, "index", -1);
2147 qemu_acl *acl = find_acl(mon, aclname);
2151 if (strcmp(policy, "allow") == 0) {
2153 } else if (strcmp(policy, "deny") == 0) {
2156 monitor_printf(mon, "acl: unknown policy '%s', "
2157 "expected 'deny' or 'allow'\n", policy);
2161 ret = qemu_acl_insert(acl, deny, match, index);
2163 ret = qemu_acl_append(acl, deny, match);
2165 monitor_printf(mon, "acl: unable to add acl entry\n");
2167 monitor_printf(mon, "acl: added rule at position %d\n", ret);
2171 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
2173 const char *aclname = qdict_get_str(qdict, "aclname");
2174 const char *match = qdict_get_str(qdict, "match");
2175 qemu_acl *acl = find_acl(mon, aclname);
2179 ret = qemu_acl_remove(acl, match);
2181 monitor_printf(mon, "acl: no matching acl entry\n");
2183 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2187 void qmp_getfd(const char *fdname, Error **errp)
2192 fd = qemu_chr_fe_get_msgfd(&cur_mon->chr);
2194 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2198 if (qemu_isdigit(fdname[0])) {
2200 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
2201 "a name not starting with a digit");
2205 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2206 if (strcmp(monfd->name, fdname) != 0) {
2215 monfd = g_malloc0(sizeof(mon_fd_t));
2216 monfd->name = g_strdup(fdname);
2219 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
2222 void qmp_closefd(const char *fdname, Error **errp)
2226 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
2227 if (strcmp(monfd->name, fdname) != 0) {
2231 QLIST_REMOVE(monfd, next);
2233 g_free(monfd->name);
2238 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
2241 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
2245 QLIST_FOREACH(monfd, &mon->fds, next) {
2248 if (strcmp(monfd->name, fdname) != 0) {
2254 /* caller takes ownership of fd */
2255 QLIST_REMOVE(monfd, next);
2256 g_free(monfd->name);
2262 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
2266 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
2268 MonFdsetFd *mon_fdset_fd;
2269 MonFdsetFd *mon_fdset_fd_next;
2271 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
2272 if ((mon_fdset_fd->removed ||
2273 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
2274 runstate_is_running()) {
2275 close(mon_fdset_fd->fd);
2276 g_free(mon_fdset_fd->opaque);
2277 QLIST_REMOVE(mon_fdset_fd, next);
2278 g_free(mon_fdset_fd);
2282 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
2283 QLIST_REMOVE(mon_fdset, next);
2288 static void monitor_fdsets_cleanup(void)
2290 MonFdset *mon_fdset;
2291 MonFdset *mon_fdset_next;
2293 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
2294 monitor_fdset_cleanup(mon_fdset);
2298 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
2299 const char *opaque, Error **errp)
2302 Monitor *mon = cur_mon;
2305 fd = qemu_chr_fe_get_msgfd(&mon->chr);
2307 error_setg(errp, QERR_FD_NOT_SUPPLIED);
2311 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
2312 has_opaque, opaque, errp);
2324 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
2326 MonFdset *mon_fdset;
2327 MonFdsetFd *mon_fdset_fd;
2330 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2331 if (mon_fdset->id != fdset_id) {
2334 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2336 if (mon_fdset_fd->fd != fd) {
2339 mon_fdset_fd->removed = true;
2342 mon_fdset_fd->removed = true;
2345 if (has_fd && !mon_fdset_fd) {
2348 monitor_fdset_cleanup(mon_fdset);
2354 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
2357 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
2359 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
2362 FdsetInfoList *qmp_query_fdsets(Error **errp)
2364 MonFdset *mon_fdset;
2365 MonFdsetFd *mon_fdset_fd;
2366 FdsetInfoList *fdset_list = NULL;
2368 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2369 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
2370 FdsetFdInfoList *fdsetfd_list = NULL;
2372 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
2373 fdset_info->value->fdset_id = mon_fdset->id;
2375 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2376 FdsetFdInfoList *fdsetfd_info;
2378 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
2379 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
2380 fdsetfd_info->value->fd = mon_fdset_fd->fd;
2381 if (mon_fdset_fd->opaque) {
2382 fdsetfd_info->value->has_opaque = true;
2383 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
2385 fdsetfd_info->value->has_opaque = false;
2388 fdsetfd_info->next = fdsetfd_list;
2389 fdsetfd_list = fdsetfd_info;
2392 fdset_info->value->fds = fdsetfd_list;
2394 fdset_info->next = fdset_list;
2395 fdset_list = fdset_info;
2401 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
2402 bool has_opaque, const char *opaque,
2405 MonFdset *mon_fdset = NULL;
2406 MonFdsetFd *mon_fdset_fd;
2410 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2411 /* Break if match found or match impossible due to ordering by ID */
2412 if (fdset_id <= mon_fdset->id) {
2413 if (fdset_id < mon_fdset->id) {
2421 if (mon_fdset == NULL) {
2422 int64_t fdset_id_prev = -1;
2423 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
2427 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
2428 "a non-negative value");
2431 /* Use specified fdset ID */
2432 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2433 mon_fdset_cur = mon_fdset;
2434 if (fdset_id < mon_fdset_cur->id) {
2439 /* Use first available fdset ID */
2440 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2441 mon_fdset_cur = mon_fdset;
2442 if (fdset_id_prev == mon_fdset_cur->id - 1) {
2443 fdset_id_prev = mon_fdset_cur->id;
2450 mon_fdset = g_malloc0(sizeof(*mon_fdset));
2452 mon_fdset->id = fdset_id;
2454 mon_fdset->id = fdset_id_prev + 1;
2457 /* The fdset list is ordered by fdset ID */
2458 if (!mon_fdset_cur) {
2459 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
2460 } else if (mon_fdset->id < mon_fdset_cur->id) {
2461 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
2463 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
2467 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
2468 mon_fdset_fd->fd = fd;
2469 mon_fdset_fd->removed = false;
2471 mon_fdset_fd->opaque = g_strdup(opaque);
2473 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
2475 fdinfo = g_malloc0(sizeof(*fdinfo));
2476 fdinfo->fdset_id = mon_fdset->id;
2477 fdinfo->fd = mon_fdset_fd->fd;
2482 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
2485 MonFdset *mon_fdset;
2486 MonFdsetFd *mon_fdset_fd;
2489 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2490 if (mon_fdset->id != fdset_id) {
2493 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2494 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2495 if (mon_fd_flags == -1) {
2499 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2500 return mon_fdset_fd->fd;
2512 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2514 MonFdset *mon_fdset;
2515 MonFdsetFd *mon_fdset_fd_dup;
2517 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2518 if (mon_fdset->id != fdset_id) {
2521 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2522 if (mon_fdset_fd_dup->fd == dup_fd) {
2526 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2527 mon_fdset_fd_dup->fd = dup_fd;
2528 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2534 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2536 MonFdset *mon_fdset;
2537 MonFdsetFd *mon_fdset_fd_dup;
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 return mon_fdset->id;
2557 int monitor_fdset_dup_fd_find(int dup_fd)
2559 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2562 void monitor_fdset_dup_fd_remove(int dup_fd)
2564 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2567 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2570 Error *local_err = NULL;
2572 if (!qemu_isdigit(fdname[0]) && mon) {
2573 fd = monitor_get_fd(mon, fdname, &local_err);
2575 fd = qemu_parse_fd(fdname);
2577 error_setg(&local_err, "Invalid file descriptor number '%s'",
2582 error_propagate(errp, local_err);
2591 /* Please update hmp-commands.hx when adding or changing commands */
2592 static mon_cmd_t info_cmds[] = {
2593 #include "hmp-commands-info.h"
2597 /* mon_cmds and info_cmds would be sorted at runtime */
2598 static mon_cmd_t mon_cmds[] = {
2599 #include "hmp-commands.h"
2603 /*******************************************************************/
2605 static const char *pch;
2606 static sigjmp_buf expr_env;
2609 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2610 expr_error(Monitor *mon, const char *fmt, ...)
2614 monitor_vprintf(mon, fmt, ap);
2615 monitor_printf(mon, "\n");
2617 siglongjmp(expr_env, 1);
2620 /* return 0 if OK, -1 if not found */
2621 static int get_monitor_def(target_long *pval, const char *name)
2623 const MonitorDef *md = target_monitor_defs();
2624 CPUState *cs = mon_get_cpu();
2629 if (cs == NULL || md == NULL) {
2633 for(; md->name != NULL; md++) {
2634 if (compare_cmd(name, md->name)) {
2635 if (md->get_value) {
2636 *pval = md->get_value(md, md->offset);
2638 CPUArchState *env = mon_get_cpu_env();
2639 ptr = (uint8_t *)env + md->offset;
2642 *pval = *(int32_t *)ptr;
2645 *pval = *(target_long *)ptr;
2656 ret = target_get_monitor_def(cs, name, &tmp);
2658 *pval = (target_long) tmp;
2664 static void next(void)
2668 while (qemu_isspace(*pch))
2673 static int64_t expr_sum(Monitor *mon);
2675 static int64_t expr_unary(Monitor *mon)
2684 n = expr_unary(mon);
2688 n = -expr_unary(mon);
2692 n = ~expr_unary(mon);
2698 expr_error(mon, "')' expected");
2705 expr_error(mon, "character constant expected");
2709 expr_error(mon, "missing terminating \' character");
2719 while ((*pch >= 'a' && *pch <= 'z') ||
2720 (*pch >= 'A' && *pch <= 'Z') ||
2721 (*pch >= '0' && *pch <= '9') ||
2722 *pch == '_' || *pch == '.') {
2723 if ((q - buf) < sizeof(buf) - 1)
2727 while (qemu_isspace(*pch))
2730 ret = get_monitor_def(®, buf);
2732 expr_error(mon, "unknown register");
2737 expr_error(mon, "unexpected end of expression");
2742 n = strtoull(pch, &p, 0);
2743 if (errno == ERANGE) {
2744 expr_error(mon, "number too large");
2747 expr_error(mon, "invalid char '%c' in expression", *p);
2750 while (qemu_isspace(*pch))
2758 static int64_t expr_prod(Monitor *mon)
2763 val = expr_unary(mon);
2766 if (op != '*' && op != '/' && op != '%')
2769 val2 = expr_unary(mon);
2778 expr_error(mon, "division by zero");
2789 static int64_t expr_logic(Monitor *mon)
2794 val = expr_prod(mon);
2797 if (op != '&' && op != '|' && op != '^')
2800 val2 = expr_prod(mon);
2817 static int64_t expr_sum(Monitor *mon)
2822 val = expr_logic(mon);
2825 if (op != '+' && op != '-')
2828 val2 = expr_logic(mon);
2837 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2840 if (sigsetjmp(expr_env, 0)) {
2844 while (qemu_isspace(*pch))
2846 *pval = expr_sum(mon);
2851 static int get_double(Monitor *mon, double *pval, const char **pp)
2853 const char *p = *pp;
2857 d = strtod(p, &tailp);
2859 monitor_printf(mon, "Number expected\n");
2862 if (d != d || d - d != 0) {
2863 /* NaN or infinity */
2864 monitor_printf(mon, "Bad number\n");
2873 * Store the command-name in cmdname, and return a pointer to
2874 * the remaining of the command string.
2876 static const char *get_command_name(const char *cmdline,
2877 char *cmdname, size_t nlen)
2880 const char *p, *pstart;
2883 while (qemu_isspace(*p))
2888 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2893 memcpy(cmdname, pstart, len);
2894 cmdname[len] = '\0';
2899 * Read key of 'type' into 'key' and return the current
2902 static char *key_get_info(const char *type, char **key)
2910 p = strchr(type, ':');
2917 str = g_malloc(len + 1);
2918 memcpy(str, type, len);
2925 static int default_fmt_format = 'x';
2926 static int default_fmt_size = 4;
2928 static int is_valid_option(const char *c, const char *typestr)
2936 typestr = strstr(typestr, option);
2937 return (typestr != NULL);
2940 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2941 const char *cmdname)
2943 const mon_cmd_t *cmd;
2945 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2946 if (compare_cmd(cmdname, cmd->name)) {
2955 * Parse command name from @cmdp according to command table @table.
2956 * If blank, return NULL.
2957 * Else, if no valid command can be found, report to @mon, and return
2959 * Else, change @cmdp to point right behind the name, and return its
2960 * command table entry.
2961 * Do not assume the return value points into @table! It doesn't when
2962 * the command is found in a sub-command table.
2964 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2965 const char *cmdp_start,
2970 const mon_cmd_t *cmd;
2973 /* extract the command name */
2974 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2978 cmd = search_dispatch_table(table, cmdname);
2980 monitor_printf(mon, "unknown command: '%.*s'\n",
2981 (int)(p - cmdp_start), cmdp_start);
2985 /* filter out following useless space */
2986 while (qemu_isspace(*p)) {
2991 /* search sub command */
2992 if (cmd->sub_table != NULL && *p != '\0') {
2993 return monitor_parse_command(mon, cmdp_start, cmdp, cmd->sub_table);
3000 * Parse arguments for @cmd.
3001 * If it can't be parsed, report to @mon, and return NULL.
3002 * Else, insert command arguments into a QDict, and return it.
3003 * Note: On success, caller has to free the QDict structure.
3006 static QDict *monitor_parse_arguments(Monitor *mon,
3008 const mon_cmd_t *cmd)
3010 const char *typestr;
3013 const char *p = *endp;
3015 QDict *qdict = qdict_new();
3017 /* parse the parameters */
3018 typestr = cmd->args_type;
3020 typestr = key_get_info(typestr, &key);
3032 while (qemu_isspace(*p))
3034 if (*typestr == '?') {
3037 /* no optional string: NULL argument */
3041 ret = get_str(buf, sizeof(buf), &p);
3045 monitor_printf(mon, "%s: filename expected\n",
3049 monitor_printf(mon, "%s: block device name expected\n",
3053 monitor_printf(mon, "%s: string expected\n", cmd->name);
3058 qdict_put_str(qdict, key, buf);
3063 QemuOptsList *opts_list;
3066 opts_list = qemu_find_opts(key);
3067 if (!opts_list || opts_list->desc->name) {
3070 while (qemu_isspace(*p)) {
3075 if (get_str(buf, sizeof(buf), &p) < 0) {
3078 opts = qemu_opts_parse_noisily(opts_list, buf, true);
3082 qemu_opts_to_qdict(opts, qdict);
3083 qemu_opts_del(opts);
3088 int count, format, size;
3090 while (qemu_isspace(*p))
3096 if (qemu_isdigit(*p)) {
3098 while (qemu_isdigit(*p)) {
3099 count = count * 10 + (*p - '0');
3137 if (*p != '\0' && !qemu_isspace(*p)) {
3138 monitor_printf(mon, "invalid char in format: '%c'\n",
3143 format = default_fmt_format;
3144 if (format != 'i') {
3145 /* for 'i', not specifying a size gives -1 as size */
3147 size = default_fmt_size;
3148 default_fmt_size = size;
3150 default_fmt_format = format;
3153 format = default_fmt_format;
3154 if (format != 'i') {
3155 size = default_fmt_size;
3160 qdict_put_int(qdict, "count", count);
3161 qdict_put_int(qdict, "format", format);
3162 qdict_put_int(qdict, "size", size);
3171 while (qemu_isspace(*p))
3173 if (*typestr == '?' || *typestr == '.') {
3174 if (*typestr == '?') {
3182 while (qemu_isspace(*p))
3191 if (get_expr(mon, &val, &p))
3193 /* Check if 'i' is greater than 32-bit */
3194 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3195 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
3196 monitor_printf(mon, "integer is for 32-bit values\n");
3198 } else if (c == 'M') {
3200 monitor_printf(mon, "enter a positive value\n");
3205 qdict_put_int(qdict, key, val);
3214 while (qemu_isspace(*p)) {
3217 if (*typestr == '?') {
3223 ret = qemu_strtosz_MiB(p, &end, &val);
3224 if (ret < 0 || val > INT64_MAX) {
3225 monitor_printf(mon, "invalid size\n");
3228 qdict_put_int(qdict, key, val);
3236 while (qemu_isspace(*p))
3238 if (*typestr == '?') {
3244 if (get_double(mon, &val, &p) < 0) {
3247 if (p[0] && p[1] == 's') {
3250 val /= 1e3; p += 2; break;
3252 val /= 1e6; p += 2; break;
3254 val /= 1e9; p += 2; break;
3257 if (*p && !qemu_isspace(*p)) {
3258 monitor_printf(mon, "Unknown unit suffix\n");
3261 qdict_put(qdict, key, qnum_from_double(val));
3269 while (qemu_isspace(*p)) {
3273 while (qemu_isgraph(*p)) {
3276 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3278 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3281 monitor_printf(mon, "Expected 'on' or 'off'\n");
3284 qdict_put_bool(qdict, key, val);
3289 const char *tmp = p;
3296 while (qemu_isspace(*p))
3301 if(!is_valid_option(p, typestr)) {
3303 monitor_printf(mon, "%s: unsupported option -%c\n",
3315 qdict_put_bool(qdict, key, true);
3322 /* package all remaining string */
3325 while (qemu_isspace(*p)) {
3328 if (*typestr == '?') {
3331 /* no remaining string: NULL argument */
3337 monitor_printf(mon, "%s: string expected\n",
3341 qdict_put_str(qdict, key, p);
3347 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
3353 /* check that all arguments were parsed */
3354 while (qemu_isspace(*p))
3357 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3370 static void handle_hmp_command(Monitor *mon, const char *cmdline)
3373 const mon_cmd_t *cmd;
3375 trace_handle_hmp_command(mon, cmdline);
3377 cmd = monitor_parse_command(mon, cmdline, &cmdline, mon->cmd_table);
3382 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
3384 monitor_printf(mon, "Try \"help %s\" for more information\n",
3389 cmd->cmd(mon, qdict);
3393 static void cmd_completion(Monitor *mon, const char *name, const char *list)
3395 const char *p, *pstart;
3404 p = pstart + strlen(pstart);
3406 if (len > sizeof(cmd) - 2)
3407 len = sizeof(cmd) - 2;
3408 memcpy(cmd, pstart, len);
3410 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3411 readline_add_completion(mon->rs, cmd);
3419 static void file_completion(Monitor *mon, const char *input)
3424 char file[1024], file_prefix[1024];
3428 p = strrchr(input, '/');
3431 pstrcpy(file_prefix, sizeof(file_prefix), input);
3432 pstrcpy(path, sizeof(path), ".");
3434 input_path_len = p - input + 1;
3435 memcpy(path, input, input_path_len);
3436 if (input_path_len > sizeof(path) - 1)
3437 input_path_len = sizeof(path) - 1;
3438 path[input_path_len] = '\0';
3439 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3442 ffs = opendir(path);
3451 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
3455 if (strstart(d->d_name, file_prefix, NULL)) {
3456 memcpy(file, input, input_path_len);
3457 if (input_path_len < sizeof(file))
3458 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3460 /* stat the file to find out if it's a directory.
3461 * In that case add a slash to speed up typing long paths
3463 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
3464 pstrcat(file, sizeof(file), "/");
3466 readline_add_completion(mon->rs, file);
3472 static const char *next_arg_type(const char *typestr)
3474 const char *p = strchr(typestr, ':');
3475 return (p != NULL ? ++p : typestr);
3478 static void add_completion_option(ReadLineState *rs, const char *str,
3481 if (!str || !option) {
3484 if (!strncmp(option, str, strlen(str))) {
3485 readline_add_completion(rs, option);
3489 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3492 ChardevBackendInfoList *list, *start;
3498 readline_set_completion_index(rs, len);
3500 start = list = qmp_query_chardev_backends(NULL);
3502 const char *chr_name = list->value->name;
3504 if (!strncmp(chr_name, str, len)) {
3505 readline_add_completion(rs, chr_name);
3509 qapi_free_ChardevBackendInfoList(start);
3512 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3521 readline_set_completion_index(rs, len);
3522 for (i = 0; i < NET_CLIENT_DRIVER__MAX; i++) {
3523 add_completion_option(rs, str, NetClientDriver_str(i));
3527 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3537 readline_set_completion_index(rs, len);
3538 list = elt = object_class_get_list(TYPE_DEVICE, false);
3541 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3543 name = object_class_get_name(OBJECT_CLASS(dc));
3545 if (dc->user_creatable
3546 && !strncmp(name, str, len)) {
3547 readline_add_completion(rs, name);
3554 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3564 readline_set_completion_index(rs, len);
3565 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3569 name = object_class_get_name(OBJECT_CLASS(elt->data));
3570 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3571 readline_add_completion(rs, name);
3578 static void peripheral_device_del_completion(ReadLineState *rs,
3579 const char *str, size_t len)
3581 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3582 GSList *list, *item;
3584 list = qdev_build_hotpluggable_device_list(peripheral);
3589 for (item = list; item; item = g_slist_next(item)) {
3590 DeviceState *dev = item->data;
3592 if (dev->id && !strncmp(str, dev->id, len)) {
3593 readline_add_completion(rs, dev->id);
3600 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3603 ChardevInfoList *list, *start;
3609 readline_set_completion_index(rs, len);
3611 start = list = qmp_query_chardev(NULL);
3613 ChardevInfo *chr = list->value;
3615 if (!strncmp(chr->label, str, len)) {
3616 readline_add_completion(rs, chr->label);
3620 qapi_free_ChardevInfoList(start);
3623 static void ringbuf_completion(ReadLineState *rs, const char *str)
3626 ChardevInfoList *list, *start;
3629 readline_set_completion_index(rs, len);
3631 start = list = qmp_query_chardev(NULL);
3633 ChardevInfo *chr_info = list->value;
3635 if (!strncmp(chr_info->label, str, len)) {
3636 Chardev *chr = qemu_chr_find(chr_info->label);
3637 if (chr && CHARDEV_IS_RINGBUF(chr)) {
3638 readline_add_completion(rs, chr_info->label);
3643 qapi_free_ChardevInfoList(start);
3646 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3651 ringbuf_completion(rs, str);
3654 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3663 readline_set_completion_index(rs, len);
3664 peripheral_device_del_completion(rs, str, len);
3667 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3669 ObjectPropertyInfoList *list, *start;
3676 readline_set_completion_index(rs, len);
3678 start = list = qmp_qom_list("/objects", NULL);
3680 ObjectPropertyInfo *info = list->value;
3682 if (!strncmp(info->type, "child<", 5)
3683 && !strncmp(info->name, str, len)) {
3684 readline_add_completion(rs, info->name);
3688 qapi_free_ObjectPropertyInfoList(start);
3691 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3700 sep = strrchr(str, '-');
3705 readline_set_completion_index(rs, len);
3706 for (i = 0; i < Q_KEY_CODE__MAX; i++) {
3707 if (!strncmp(str, QKeyCode_str(i), len)) {
3708 readline_add_completion(rs, QKeyCode_str(i));
3713 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3718 readline_set_completion_index(rs, len);
3720 NetClientState *ncs[MAX_QUEUE_NUM];
3722 count = qemu_find_net_clients_except(NULL, ncs,
3723 NET_CLIENT_DRIVER_NONE,
3725 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3726 const char *name = ncs[i]->name;
3727 if (!strncmp(str, name, len)) {
3728 readline_add_completion(rs, name);
3731 } else if (nb_args == 3) {
3732 add_completion_option(rs, str, "on");
3733 add_completion_option(rs, str, "off");
3737 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3740 NetClientState *ncs[MAX_QUEUE_NUM];
3747 readline_set_completion_index(rs, len);
3748 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC,
3750 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3752 const char *name = ncs[i]->name;
3753 if (strncmp(str, name, len)) {
3756 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3758 readline_add_completion(rs, name);
3763 void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
3768 readline_set_completion_index(rs, len);
3770 TraceEventIter iter;
3772 char *pattern = g_strdup_printf("%s*", str);
3773 trace_event_iter_init(&iter, pattern);
3774 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3775 readline_add_completion(rs, trace_event_get_name(ev));
3781 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3786 readline_set_completion_index(rs, len);
3788 TraceEventIter iter;
3790 char *pattern = g_strdup_printf("%s*", str);
3791 trace_event_iter_init(&iter, pattern);
3792 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3793 readline_add_completion(rs, trace_event_get_name(ev));
3796 } else if (nb_args == 3) {
3797 add_completion_option(rs, str, "on");
3798 add_completion_option(rs, str, "off");
3802 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3809 readline_set_completion_index(rs, strlen(str));
3810 for (i = 0; i < WATCHDOG_ACTION__MAX; i++) {
3811 add_completion_option(rs, str, WatchdogAction_str(i));
3815 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3821 readline_set_completion_index(rs, len);
3824 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
3825 const char *name = MigrationCapability_str(i);
3826 if (!strncmp(str, name, len)) {
3827 readline_add_completion(rs, name);
3830 } else if (nb_args == 3) {
3831 add_completion_option(rs, str, "on");
3832 add_completion_option(rs, str, "off");
3836 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3842 readline_set_completion_index(rs, len);
3845 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
3846 const char *name = MigrationParameter_str(i);
3847 if (!strncmp(str, name, len)) {
3848 readline_add_completion(rs, name);
3854 static void vm_completion(ReadLineState *rs, const char *str)
3857 BlockDriverState *bs;
3858 BdrvNextIterator it;
3861 readline_set_completion_index(rs, len);
3863 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
3864 SnapshotInfoList *snapshots, *snapshot;
3865 AioContext *ctx = bdrv_get_aio_context(bs);
3868 aio_context_acquire(ctx);
3869 if (bdrv_can_snapshot(bs)) {
3870 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
3872 aio_context_release(ctx);
3877 snapshot = snapshots;
3879 char *completion = snapshot->value->name;
3880 if (!strncmp(str, completion, len)) {
3881 readline_add_completion(rs, completion);
3883 completion = snapshot->value->id;
3884 if (!strncmp(str, completion, len)) {
3885 readline_add_completion(rs, completion);
3887 snapshot = snapshot->next;
3889 qapi_free_SnapshotInfoList(snapshots);
3894 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3897 vm_completion(rs, str);
3901 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3904 vm_completion(rs, str);
3908 static void monitor_find_completion_by_table(Monitor *mon,
3909 const mon_cmd_t *cmd_table,
3913 const char *cmdname;
3915 const char *ptype, *old_ptype, *str, *name;
3916 const mon_cmd_t *cmd;
3917 BlockBackend *blk = NULL;
3920 /* command completion */
3925 readline_set_completion_index(mon->rs, strlen(cmdname));
3926 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3927 cmd_completion(mon, cmdname, cmd->name);
3930 /* find the command */
3931 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3932 if (compare_cmd(args[0], cmd->name)) {
3940 if (cmd->sub_table) {
3941 /* do the job again */
3942 monitor_find_completion_by_table(mon, cmd->sub_table,
3943 &args[1], nb_args - 1);
3946 if (cmd->command_completion) {
3947 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3951 ptype = next_arg_type(cmd->args_type);
3952 for(i = 0; i < nb_args - 2; i++) {
3953 if (*ptype != '\0') {
3954 ptype = next_arg_type(ptype);
3955 while (*ptype == '?')
3956 ptype = next_arg_type(ptype);
3959 str = args[nb_args - 1];
3961 while (*ptype == '-' && old_ptype != ptype) {
3963 ptype = next_arg_type(ptype);
3967 /* file completion */
3968 readline_set_completion_index(mon->rs, strlen(str));
3969 file_completion(mon, str);
3972 /* block device name completion */
3973 readline_set_completion_index(mon->rs, strlen(str));
3974 while ((blk = blk_next(blk)) != NULL) {
3975 name = blk_name(blk);
3976 if (str[0] == '\0' ||
3977 !strncmp(name, str, strlen(str))) {
3978 readline_add_completion(mon->rs, name);
3984 if (!strcmp(cmd->name, "help|?")) {
3985 monitor_find_completion_by_table(mon, cmd_table,
3986 &args[1], nb_args - 1);
3995 static void monitor_find_completion(void *opaque,
3996 const char *cmdline)
3998 Monitor *mon = opaque;
3999 char *args[MAX_ARGS];
4002 /* 1. parse the cmdline */
4003 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
4007 /* if the line ends with a space, it means we want to complete the
4009 len = strlen(cmdline);
4010 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
4011 if (nb_args >= MAX_ARGS) {
4014 args[nb_args++] = g_strdup("");
4017 /* 2. auto complete according to args */
4018 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
4021 free_cmdline_args(args, nb_args);
4024 static int monitor_can_read(void *opaque)
4026 Monitor *mon = opaque;
4028 return !atomic_mb_read(&mon->suspend_cnt);
4032 * 1. This function takes ownership of rsp, err, and id.
4033 * 2. rsp, err, and id may be NULL.
4034 * 3. If err != NULL then rsp must be NULL.
4036 static void monitor_qmp_respond(Monitor *mon, QObject *rsp,
4037 Error *err, QObject *id)
4039 QDict *qdict = NULL;
4043 qdict = qdict_new();
4044 qdict_put_obj(qdict, "error", qmp_build_error_object(err));
4046 rsp = QOBJECT(qdict);
4051 /* This is for the qdict below. */
4053 qdict_put_obj(qobject_to(QDict, rsp), "id", id);
4056 monitor_json_emitter(mon, rsp);
4060 qobject_decref(rsp);
4064 * Dispatch one single QMP request. The function will free the req_obj
4065 * and objects inside it before return.
4067 static void monitor_qmp_dispatch_one(QMPRequest *req_obj)
4069 Monitor *mon, *old_mon;
4070 QObject *req, *rsp = NULL, *id;
4076 need_resume = req_obj->need_resume;
4080 if (trace_event_get_state_backends(TRACE_HANDLE_QMP_COMMAND)) {
4081 QString *req_json = qobject_to_json(req);
4082 trace_handle_qmp_command(mon, qstring_get_str(req_json));
4089 rsp = qmp_dispatch(mon->qmp.commands, req);
4093 /* Respond if necessary */
4094 monitor_qmp_respond(mon, rsp, NULL, id);
4096 /* This pairs with the monitor_suspend() in handle_qmp_command(). */
4098 monitor_resume(mon);
4101 qobject_decref(req);
4105 * Pop one QMP request from monitor queues, return NULL if not found.
4106 * We are using round-robin fashion to pop the request, to avoid
4107 * processing commands only on a very busy monitor. To achieve that,
4108 * when we process one request on a specific monitor, we put that
4109 * monitor to the end of mon_list queue.
4111 static QMPRequest *monitor_qmp_requests_pop_one(void)
4113 QMPRequest *req_obj = NULL;
4116 qemu_mutex_lock(&monitor_lock);
4118 QTAILQ_FOREACH(mon, &mon_list, entry) {
4119 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4120 req_obj = g_queue_pop_head(mon->qmp.qmp_requests);
4121 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4129 * We found one request on the monitor. Degrade this monitor's
4130 * priority to lowest by re-inserting it to end of queue.
4132 QTAILQ_REMOVE(&mon_list, mon, entry);
4133 QTAILQ_INSERT_TAIL(&mon_list, mon, entry);
4136 qemu_mutex_unlock(&monitor_lock);
4141 static void monitor_qmp_bh_dispatcher(void *data)
4143 QMPRequest *req_obj = monitor_qmp_requests_pop_one();
4146 trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj->id) ?: "");
4147 monitor_qmp_dispatch_one(req_obj);
4148 /* Reschedule instead of looping so the main loop stays responsive */
4149 qemu_bh_schedule(mon_global.qmp_dispatcher_bh);
4153 #define QMP_REQ_QUEUE_LEN_MAX (8)
4155 static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
4157 QObject *req, *id = NULL;
4158 QDict *qdict = NULL;
4159 MonitorQMP *mon_qmp = container_of(parser, MonitorQMP, parser);
4160 Monitor *mon = container_of(mon_qmp, Monitor, qmp);
4162 QMPRequest *req_obj;
4164 req = json_parser_parse_err(tokens, NULL, &err);
4166 /* json_parser_parse_err() sucks: can fail without setting @err */
4167 error_setg(&err, QERR_JSON_PARSING);
4173 /* Check against the request in general layout */
4174 qdict = qmp_dispatch_check_obj(req, &err);
4179 /* Check against OOB specific */
4180 if (!qmp_cmd_oob_check(mon, qdict, &err)) {
4184 id = qdict_get(qdict, "id");
4186 /* When OOB is enabled, the "id" field is mandatory. */
4187 if (qmp_oob_enabled(mon) && !id) {
4188 error_setg(&err, "Out-Of-Band capability requires that "
4189 "every command contains an 'id' field");
4194 qdict_del(qdict, "id");
4196 req_obj = g_new0(QMPRequest, 1);
4200 req_obj->need_resume = false;
4202 if (qmp_is_oob(qdict)) {
4203 /* Out-Of-Band (OOB) requests are executed directly in parser. */
4204 trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(req_obj->id)
4206 monitor_qmp_dispatch_one(req_obj);
4210 /* Protect qmp_requests and fetching its length. */
4211 qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
4214 * If OOB is not enabled on the current monitor, we'll emulate the
4215 * old behavior that we won't process the current monitor any more
4216 * until it has responded. This helps make sure that as long as
4217 * OOB is not enabled, the server will never drop any command.
4219 if (!qmp_oob_enabled(mon)) {
4220 monitor_suspend(mon);
4221 req_obj->need_resume = true;
4223 /* Drop the request if queue is full. */
4224 if (mon->qmp.qmp_requests->length >= QMP_REQ_QUEUE_LEN_MAX) {
4225 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4226 qapi_event_send_command_dropped(id,
4227 COMMAND_DROP_REASON_QUEUE_FULL,
4229 qmp_request_free(req_obj);
4235 * Put the request to the end of queue so that requests will be
4236 * handled in time order. Ownership for req_obj, req, id,
4237 * etc. will be delivered to the handler side.
4239 g_queue_push_tail(mon->qmp.qmp_requests, req_obj);
4240 qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
4242 /* Kick the dispatcher routine */
4243 qemu_bh_schedule(mon_global.qmp_dispatcher_bh);
4247 monitor_qmp_respond(mon, NULL, err, NULL);
4248 qobject_decref(req);
4251 static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
4253 Monitor *mon = opaque;
4255 json_message_parser_feed(&mon->qmp.parser, (const char *) buf, size);
4258 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4260 Monitor *old_mon = cur_mon;
4266 for (i = 0; i < size; i++)
4267 readline_handle_byte(cur_mon->rs, buf[i]);
4269 if (size == 0 || buf[size - 1] != 0)
4270 monitor_printf(cur_mon, "corrupted command\n");
4272 handle_hmp_command(cur_mon, (char *)buf);
4278 static void monitor_command_cb(void *opaque, const char *cmdline,
4279 void *readline_opaque)
4281 Monitor *mon = opaque;
4283 monitor_suspend(mon);
4284 handle_hmp_command(mon, cmdline);
4285 monitor_resume(mon);
4288 int monitor_suspend(Monitor *mon)
4290 if (monitor_is_hmp_non_interactive(mon)) {
4294 atomic_inc(&mon->suspend_cnt);
4296 if (monitor_is_qmp(mon)) {
4298 * Kick iothread to make sure this takes effect. It'll be
4299 * evaluated again in prepare() of the watch object.
4301 aio_notify(iothread_get_aio_context(mon_global.mon_iothread));
4304 trace_monitor_suspend(mon, 1);
4308 void monitor_resume(Monitor *mon)
4310 if (monitor_is_hmp_non_interactive(mon)) {
4314 if (atomic_dec_fetch(&mon->suspend_cnt) == 0) {
4315 if (monitor_is_qmp(mon)) {
4317 * For QMP monitors that are running in IOThread, let's
4318 * kick the thread in case it's sleeping.
4320 if (mon->use_io_thr) {
4321 aio_notify(iothread_get_aio_context(mon_global.mon_iothread));
4325 readline_show_prompt(mon->rs);
4328 trace_monitor_suspend(mon, -1);
4331 static QObject *get_qmp_greeting(Monitor *mon)
4333 QList *cap_list = qlist_new();
4334 QObject *ver = NULL;
4337 qmp_marshal_query_version(NULL, &ver, NULL);
4339 for (cap = 0; cap < QMP_CAPABILITY__MAX; cap++) {
4340 if (!mon->use_io_thr && cap == QMP_CAPABILITY_OOB) {
4341 /* Monitors that are not using IOThread won't support OOB */
4344 qlist_append_str(cap_list, QMPCapability_str(cap));
4347 return qobject_from_jsonf("{'QMP': {'version': %p, 'capabilities': %p}}",
4351 static void monitor_qmp_caps_reset(Monitor *mon)
4353 memset(mon->qmp.qmp_caps, 0, sizeof(mon->qmp.qmp_caps));
4356 static void monitor_qmp_event(void *opaque, int event)
4359 Monitor *mon = opaque;
4362 case CHR_EVENT_OPENED:
4363 mon->qmp.commands = &qmp_cap_negotiation_commands;
4364 monitor_qmp_caps_reset(mon);
4365 data = get_qmp_greeting(mon);
4366 monitor_json_emitter(mon, data);
4367 qobject_decref(data);
4370 case CHR_EVENT_CLOSED:
4371 monitor_qmp_cleanup_queues(mon);
4372 json_message_parser_destroy(&mon->qmp.parser);
4373 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
4375 monitor_fdsets_cleanup();
4380 static void monitor_event(void *opaque, int event)
4382 Monitor *mon = opaque;
4385 case CHR_EVENT_MUX_IN:
4386 qemu_mutex_lock(&mon->out_lock);
4388 qemu_mutex_unlock(&mon->out_lock);
4389 if (mon->reset_seen) {
4390 readline_restart(mon->rs);
4391 monitor_resume(mon);
4394 atomic_mb_set(&mon->suspend_cnt, 0);
4398 case CHR_EVENT_MUX_OUT:
4399 if (mon->reset_seen) {
4400 if (atomic_mb_read(&mon->suspend_cnt) == 0) {
4401 monitor_printf(mon, "\n");
4404 monitor_suspend(mon);
4406 atomic_inc(&mon->suspend_cnt);
4408 qemu_mutex_lock(&mon->out_lock);
4410 qemu_mutex_unlock(&mon->out_lock);
4413 case CHR_EVENT_OPENED:
4414 monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4415 "information\n", QEMU_VERSION);
4416 if (!mon->mux_out) {
4417 readline_restart(mon->rs);
4418 readline_show_prompt(mon->rs);
4420 mon->reset_seen = 1;
4424 case CHR_EVENT_CLOSED:
4426 monitor_fdsets_cleanup();
4432 compare_mon_cmd(const void *a, const void *b)
4434 return strcmp(((const mon_cmd_t *)a)->name,
4435 ((const mon_cmd_t *)b)->name);
4438 static void sortcmdlist(void)
4441 int elem_size = sizeof(mon_cmd_t);
4443 array_num = sizeof(mon_cmds)/elem_size-1;
4444 qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
4446 array_num = sizeof(info_cmds)/elem_size-1;
4447 qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
4450 static GMainContext *monitor_get_io_context(void)
4452 return iothread_get_g_main_context(mon_global.mon_iothread);
4455 static AioContext *monitor_get_aio_context(void)
4457 return iothread_get_aio_context(mon_global.mon_iothread);
4460 static void monitor_iothread_init(void)
4462 mon_global.mon_iothread = iothread_create("mon_iothread",
4466 * This MUST be on main loop thread since we have commands that
4467 * have assumption to be run on main loop thread. It would be
4468 * nice that one day we can remove this assumption in the future.
4470 mon_global.qmp_dispatcher_bh = aio_bh_new(iohandler_get_aio_context(),
4471 monitor_qmp_bh_dispatcher,
4475 * Unlike the dispatcher BH, this must be run on the monitor IO
4476 * thread, so that monitors that are using IO thread will make
4477 * sure read/write operations are all done on the IO thread.
4479 mon_global.qmp_respond_bh = aio_bh_new(monitor_get_aio_context(),
4480 monitor_qmp_bh_responder,
4484 void monitor_init_globals(void)
4486 monitor_init_qmp_commands();
4487 monitor_qapi_event_init();
4489 qemu_mutex_init(&monitor_lock);
4490 monitor_iothread_init();
4493 /* These functions just adapt the readline interface in a typesafe way. We
4494 * could cast function pointers but that discards compiler checks.
4496 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
4497 const char *fmt, ...)
4501 monitor_vprintf(opaque, fmt, ap);
4505 static void monitor_readline_flush(void *opaque)
4507 monitor_flush(opaque);
4511 * Print to current monitor if we have one, else to stderr.
4512 * TODO should return int, so callers can calculate width, but that
4513 * requires surgery to monitor_vprintf(). Left for another day.
4515 void error_vprintf(const char *fmt, va_list ap)
4517 if (cur_mon && !monitor_cur_is_qmp()) {
4518 monitor_vprintf(cur_mon, fmt, ap);
4520 vfprintf(stderr, fmt, ap);
4524 void error_vprintf_unless_qmp(const char *fmt, va_list ap)
4526 if (cur_mon && !monitor_cur_is_qmp()) {
4527 monitor_vprintf(cur_mon, fmt, ap);
4528 } else if (!cur_mon) {
4529 vfprintf(stderr, fmt, ap);
4533 static void monitor_list_append(Monitor *mon)
4535 qemu_mutex_lock(&monitor_lock);
4536 QTAILQ_INSERT_HEAD(&mon_list, mon, entry);
4537 qemu_mutex_unlock(&monitor_lock);
4540 static void monitor_qmp_setup_handlers_bh(void *opaque)
4542 Monitor *mon = opaque;
4543 GMainContext *context;
4545 if (mon->use_io_thr) {
4547 * When use_io_thr is set, we use the global shared dedicated
4548 * IO thread for this monitor to handle input/output.
4550 context = monitor_get_io_context();
4551 /* We should have inited globals before reaching here. */
4554 /* The default main loop, which is the main thread */
4558 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read,
4559 monitor_qmp_event, NULL, mon, context, true);
4560 monitor_list_append(mon);
4563 void monitor_init(Chardev *chr, int flags)
4565 Monitor *mon = g_malloc(sizeof(*mon));
4566 bool use_readline = flags & MONITOR_USE_READLINE;
4567 bool use_oob = flags & MONITOR_USE_OOB;
4570 if (CHARDEV_IS_MUX(chr)) {
4571 error_report("Monitor Out-Of-Band is not supported with "
4572 "MUX typed chardev backend");
4576 error_report("Monitor Out-Of-band is only supported by QMP");
4581 monitor_data_init(mon, false, use_oob);
4583 qemu_chr_fe_init(&mon->chr, chr, &error_abort);
4586 mon->rs = readline_init(monitor_readline_printf,
4587 monitor_readline_flush,
4589 monitor_find_completion);
4590 monitor_read_command(mon, 0);
4593 if (monitor_is_qmp(mon)) {
4594 qemu_chr_fe_set_echo(&mon->chr, true);
4595 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
4596 if (mon->use_io_thr) {
4598 * Make sure the old iowatch is gone. It's possible when
4599 * e.g. the chardev is in client mode, with wait=on.
4601 remove_fd_in_watch(chr);
4603 * We can't call qemu_chr_fe_set_handlers() directly here
4604 * since during the procedure the chardev will be active
4605 * and running in monitor iothread, while we'll still do
4606 * something before returning from it, which is a possible
4607 * race too. To avoid that, we just create a BH to setup
4610 aio_bh_schedule_oneshot(monitor_get_aio_context(),
4611 monitor_qmp_setup_handlers_bh, mon);
4612 /* We'll add this to mon_list in the BH when setup done */
4615 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read,
4616 monitor_qmp_read, monitor_qmp_event,
4617 NULL, mon, NULL, true);
4620 qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read,
4621 monitor_event, NULL, mon, NULL, true);
4624 monitor_list_append(mon);
4627 void monitor_cleanup(void)
4629 Monitor *mon, *next;
4632 * We need to explicitly stop the iothread (but not destroy it),
4633 * cleanup the monitor resources, then destroy the iothread since
4634 * we need to unregister from chardev below in
4635 * monitor_data_destroy(), and chardev is not thread-safe yet
4637 iothread_stop(mon_global.mon_iothread);
4640 * After we have IOThread to send responses, it's possible that
4641 * when we stop the IOThread there are still replies queued in the
4642 * responder queue. Flush all of them. Note that even after this
4643 * flush it's still possible that out buffer is not flushed.
4644 * It'll be done in below monitor_flush() as the last resort.
4646 monitor_qmp_bh_responder(NULL);
4648 qemu_mutex_lock(&monitor_lock);
4649 QTAILQ_FOREACH_SAFE(mon, &mon_list, entry, next) {
4650 QTAILQ_REMOVE(&mon_list, mon, entry);
4652 monitor_data_destroy(mon);
4655 qemu_mutex_unlock(&monitor_lock);
4657 /* QEMUBHs needs to be deleted before destroying the IOThread. */
4658 qemu_bh_delete(mon_global.qmp_dispatcher_bh);
4659 mon_global.qmp_dispatcher_bh = NULL;
4660 qemu_bh_delete(mon_global.qmp_respond_bh);
4661 mon_global.qmp_respond_bh = NULL;
4663 iothread_destroy(mon_global.mon_iothread);
4664 mon_global.mon_iothread = NULL;
4667 QemuOptsList qemu_mon_opts = {
4669 .implied_opt_name = "chardev",
4670 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4674 .type = QEMU_OPT_STRING,
4677 .type = QEMU_OPT_STRING,
4680 .type = QEMU_OPT_BOOL,
4683 .type = QEMU_OPT_BOOL,
4685 { /* end of list */ }
4690 void qmp_rtc_reset_reinjection(Error **errp)
4692 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4695 SevInfo *qmp_query_sev(Error **errp)
4697 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev");
4701 SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp)
4703 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-launch-measure");
4707 SevCapability *qmp_query_sev_capabilities(Error **errp)
4709 error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-capabilities");
4714 #ifndef TARGET_S390X
4715 void qmp_dump_skeys(const char *filename, Error **errp)
4717 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4722 GICCapabilityList *qmp_query_gic_capabilities(Error **errp)
4724 error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities");
4729 HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
4731 MachineState *ms = MACHINE(qdev_get_machine());
4732 MachineClass *mc = MACHINE_GET_CLASS(ms);
4734 if (!mc->has_hotpluggable_cpus) {
4735 error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus");
4739 return machine_query_hotpluggable_cpus(ms);