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
;
238 /* QMP checker flags */
239 #define QMP_ACCEPT_UNKNOWNS 1
241 /* Protects mon_list, monitor_event_state. */
242 static QemuMutex monitor_lock
;
244 static QTAILQ_HEAD(mon_list
, Monitor
) mon_list
;
245 static QLIST_HEAD(mon_fdsets
, MonFdset
) mon_fdsets
;
246 static int mon_refcount
;
248 static mon_cmd_t mon_cmds
[];
249 static mon_cmd_t info_cmds
[];
251 QmpCommandList qmp_commands
, qmp_cap_negotiation_commands
;
255 static QEMUClockType event_clock_type
= QEMU_CLOCK_REALTIME
;
257 static void monitor_command_cb(void *opaque
, const char *cmdline
,
258 void *readline_opaque
);
261 * Is @mon a QMP monitor?
263 static inline bool monitor_is_qmp(const Monitor
*mon
)
265 return (mon
->flags
& MONITOR_USE_CONTROL
);
269 * Whether @mon is using readline? Note: not all HMP monitors use
270 * readline, e.g., gdbserver has a non-interactive HMP monitor, so
271 * readline is not used there.
273 static inline bool monitor_uses_readline(const Monitor
*mon
)
275 return mon
->flags
& MONITOR_USE_READLINE
;
278 static inline bool monitor_is_hmp_non_interactive(const Monitor
*mon
)
280 return !monitor_is_qmp(mon
) && !monitor_uses_readline(mon
);
284 * Is the current monitor, if any, a QMP monitor?
286 bool monitor_cur_is_qmp(void)
288 return cur_mon
&& monitor_is_qmp(cur_mon
);
291 void monitor_read_command(Monitor
*mon
, int show_prompt
)
296 readline_start(mon
->rs
, "(qemu) ", 0, monitor_command_cb
, NULL
);
298 readline_show_prompt(mon
->rs
);
301 int monitor_read_password(Monitor
*mon
, ReadLineFunc
*readline_func
,
305 readline_start(mon
->rs
, "Password: ", 1, readline_func
, opaque
);
306 /* prompt is printed on return from the command handler */
309 monitor_printf(mon
, "terminal does not support password prompting\n");
314 static void monitor_flush_locked(Monitor
*mon
);
316 static gboolean
monitor_unblocked(GIOChannel
*chan
, GIOCondition cond
,
319 Monitor
*mon
= opaque
;
321 qemu_mutex_lock(&mon
->out_lock
);
323 monitor_flush_locked(mon
);
324 qemu_mutex_unlock(&mon
->out_lock
);
328 /* Called with mon->out_lock held. */
329 static void monitor_flush_locked(Monitor
*mon
)
335 if (mon
->skip_flush
) {
339 buf
= qstring_get_str(mon
->outbuf
);
340 len
= qstring_get_length(mon
->outbuf
);
342 if (len
&& !mon
->mux_out
) {
343 rc
= qemu_chr_fe_write(&mon
->chr
, (const uint8_t *) buf
, len
);
344 if ((rc
< 0 && errno
!= EAGAIN
) || (rc
== len
)) {
345 /* all flushed or error */
346 QDECREF(mon
->outbuf
);
347 mon
->outbuf
= qstring_new();
352 QString
*tmp
= qstring_from_str(buf
+ rc
);
353 QDECREF(mon
->outbuf
);
356 if (mon
->out_watch
== 0) {
358 qemu_chr_fe_add_watch(&mon
->chr
, G_IO_OUT
| G_IO_HUP
,
359 monitor_unblocked
, mon
);
364 void monitor_flush(Monitor
*mon
)
366 qemu_mutex_lock(&mon
->out_lock
);
367 monitor_flush_locked(mon
);
368 qemu_mutex_unlock(&mon
->out_lock
);
371 /* flush at every end of line */
372 static void monitor_puts(Monitor
*mon
, const char *str
)
376 qemu_mutex_lock(&mon
->out_lock
);
382 qstring_append_chr(mon
->outbuf
, '\r');
384 qstring_append_chr(mon
->outbuf
, c
);
386 monitor_flush_locked(mon
);
389 qemu_mutex_unlock(&mon
->out_lock
);
392 void monitor_vprintf(Monitor
*mon
, const char *fmt
, va_list ap
)
399 if (monitor_is_qmp(mon
)) {
403 buf
= g_strdup_vprintf(fmt
, ap
);
404 monitor_puts(mon
, buf
);
408 void monitor_printf(Monitor
*mon
, const char *fmt
, ...)
412 monitor_vprintf(mon
, fmt
, ap
);
416 int monitor_fprintf(FILE *stream
, const char *fmt
, ...)
420 monitor_vprintf((Monitor
*)stream
, fmt
, ap
);
425 static void monitor_json_emitter_raw(Monitor
*mon
,
430 json
= mon
->flags
& MONITOR_USE_PRETTY
? qobject_to_json_pretty(data
) :
431 qobject_to_json(data
);
432 assert(json
!= NULL
);
434 qstring_append_chr(json
, '\n');
435 monitor_puts(mon
, qstring_get_str(json
));
440 static void monitor_json_emitter(Monitor
*mon
, QObject
*data
)
442 if (mon
->use_io_thr
) {
444 * If using IO thread, we need to queue the item so that IO
445 * thread will do the rest for us. Take refcount so that
446 * caller won't free the data (which will be finally freed in
449 qobject_incref(data
);
450 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
451 g_queue_push_tail(mon
->qmp
.qmp_responses
, (void *)data
);
452 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
453 qemu_bh_schedule(mon_global
.qmp_respond_bh
);
456 * If not using monitor IO thread, then we are in main thread.
457 * Do the emission right away.
459 monitor_json_emitter_raw(mon
, data
);
467 typedef struct QMPResponse QMPResponse
;
470 * Return one QMPResponse. The response is only valid if
471 * response.data is not NULL.
473 static QMPResponse
monitor_qmp_response_pop_one(void)
476 QObject
*data
= NULL
;
478 qemu_mutex_lock(&monitor_lock
);
479 QTAILQ_FOREACH(mon
, &mon_list
, entry
) {
480 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
481 data
= g_queue_pop_head(mon
->qmp
.qmp_responses
);
482 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
487 qemu_mutex_unlock(&monitor_lock
);
488 return (QMPResponse
) { .mon
= mon
, .data
= data
};
491 static void monitor_qmp_bh_responder(void *opaque
)
493 QMPResponse response
;
496 response
= monitor_qmp_response_pop_one();
497 if (!response
.data
) {
500 monitor_json_emitter_raw(response
.mon
, response
.data
);
501 qobject_decref(response
.data
);
505 static MonitorQAPIEventConf monitor_qapi_event_conf
[QAPI_EVENT__MAX
] = {
506 /* Limit guest-triggerable events to 1 per second */
507 [QAPI_EVENT_RTC_CHANGE
] = { 1000 * SCALE_MS
},
508 [QAPI_EVENT_WATCHDOG
] = { 1000 * SCALE_MS
},
509 [QAPI_EVENT_BALLOON_CHANGE
] = { 1000 * SCALE_MS
},
510 [QAPI_EVENT_QUORUM_REPORT_BAD
] = { 1000 * SCALE_MS
},
511 [QAPI_EVENT_QUORUM_FAILURE
] = { 1000 * SCALE_MS
},
512 [QAPI_EVENT_VSERPORT_CHANGE
] = { 1000 * SCALE_MS
},
515 GHashTable
*monitor_qapi_event_state
;
518 * Emits the event to every monitor instance, @event is only used for trace
519 * Called with monitor_lock held.
521 static void monitor_qapi_event_emit(QAPIEvent event
, QDict
*qdict
)
525 trace_monitor_protocol_event_emit(event
, qdict
);
526 QTAILQ_FOREACH(mon
, &mon_list
, entry
) {
527 if (monitor_is_qmp(mon
)
528 && mon
->qmp
.commands
!= &qmp_cap_negotiation_commands
) {
529 monitor_json_emitter(mon
, QOBJECT(qdict
));
534 static void monitor_qapi_event_handler(void *opaque
);
537 * Queue a new event for emission to Monitor instances,
538 * applying any rate limiting if required.
541 monitor_qapi_event_queue(QAPIEvent event
, QDict
*qdict
, Error
**errp
)
543 MonitorQAPIEventConf
*evconf
;
544 MonitorQAPIEventState
*evstate
;
546 assert(event
< QAPI_EVENT__MAX
);
547 evconf
= &monitor_qapi_event_conf
[event
];
548 trace_monitor_protocol_event_queue(event
, qdict
, evconf
->rate
);
550 qemu_mutex_lock(&monitor_lock
);
553 /* Unthrottled event */
554 monitor_qapi_event_emit(event
, qdict
);
556 QDict
*data
= qobject_to(QDict
, qdict_get(qdict
, "data"));
557 MonitorQAPIEventState key
= { .event
= event
, .data
= data
};
559 evstate
= g_hash_table_lookup(monitor_qapi_event_state
, &key
);
560 assert(!evstate
|| timer_pending(evstate
->timer
));
564 * Timer is pending for (at least) evconf->rate ns after
565 * last send. Store event for sending when timer fires,
566 * replacing a prior stored event if any.
568 QDECREF(evstate
->qdict
);
569 evstate
->qdict
= qdict
;
570 QINCREF(evstate
->qdict
);
573 * Last send was (at least) evconf->rate ns ago.
574 * Send immediately, and arm the timer to call
575 * monitor_qapi_event_handler() in evconf->rate ns. Any
576 * events arriving before then will be delayed until then.
578 int64_t now
= qemu_clock_get_ns(event_clock_type
);
580 monitor_qapi_event_emit(event
, qdict
);
582 evstate
= g_new(MonitorQAPIEventState
, 1);
583 evstate
->event
= event
;
584 evstate
->data
= data
;
585 QINCREF(evstate
->data
);
586 evstate
->qdict
= NULL
;
587 evstate
->timer
= timer_new_ns(event_clock_type
,
588 monitor_qapi_event_handler
,
590 g_hash_table_add(monitor_qapi_event_state
, evstate
);
591 timer_mod_ns(evstate
->timer
, now
+ evconf
->rate
);
595 qemu_mutex_unlock(&monitor_lock
);
599 * This function runs evconf->rate ns after sending a throttled
601 * If another event has since been stored, send it.
603 static void monitor_qapi_event_handler(void *opaque
)
605 MonitorQAPIEventState
*evstate
= opaque
;
606 MonitorQAPIEventConf
*evconf
= &monitor_qapi_event_conf
[evstate
->event
];
608 trace_monitor_protocol_event_handler(evstate
->event
, evstate
->qdict
);
609 qemu_mutex_lock(&monitor_lock
);
611 if (evstate
->qdict
) {
612 int64_t now
= qemu_clock_get_ns(event_clock_type
);
614 monitor_qapi_event_emit(evstate
->event
, evstate
->qdict
);
615 QDECREF(evstate
->qdict
);
616 evstate
->qdict
= NULL
;
617 timer_mod_ns(evstate
->timer
, now
+ evconf
->rate
);
619 g_hash_table_remove(monitor_qapi_event_state
, evstate
);
620 QDECREF(evstate
->data
);
621 timer_free(evstate
->timer
);
625 qemu_mutex_unlock(&monitor_lock
);
628 static unsigned int qapi_event_throttle_hash(const void *key
)
630 const MonitorQAPIEventState
*evstate
= key
;
631 unsigned int hash
= evstate
->event
* 255;
633 if (evstate
->event
== QAPI_EVENT_VSERPORT_CHANGE
) {
634 hash
+= g_str_hash(qdict_get_str(evstate
->data
, "id"));
637 if (evstate
->event
== QAPI_EVENT_QUORUM_REPORT_BAD
) {
638 hash
+= g_str_hash(qdict_get_str(evstate
->data
, "node-name"));
644 static gboolean
qapi_event_throttle_equal(const void *a
, const void *b
)
646 const MonitorQAPIEventState
*eva
= a
;
647 const MonitorQAPIEventState
*evb
= b
;
649 if (eva
->event
!= evb
->event
) {
653 if (eva
->event
== QAPI_EVENT_VSERPORT_CHANGE
) {
654 return !strcmp(qdict_get_str(eva
->data
, "id"),
655 qdict_get_str(evb
->data
, "id"));
658 if (eva
->event
== QAPI_EVENT_QUORUM_REPORT_BAD
) {
659 return !strcmp(qdict_get_str(eva
->data
, "node-name"),
660 qdict_get_str(evb
->data
, "node-name"));
666 static void monitor_qapi_event_init(void)
668 if (qtest_enabled()) {
669 event_clock_type
= QEMU_CLOCK_VIRTUAL
;
672 monitor_qapi_event_state
= g_hash_table_new(qapi_event_throttle_hash
,
673 qapi_event_throttle_equal
);
674 qmp_event_set_func_emit(monitor_qapi_event_queue
);
677 static void handle_hmp_command(Monitor
*mon
, const char *cmdline
);
679 static void monitor_data_init(Monitor
*mon
, bool skip_flush
,
682 memset(mon
, 0, sizeof(Monitor
));
683 qemu_mutex_init(&mon
->out_lock
);
684 qemu_mutex_init(&mon
->qmp
.qmp_queue_lock
);
685 mon
->outbuf
= qstring_new();
686 /* Use *mon_cmds by default. */
687 mon
->cmd_table
= mon_cmds
;
688 mon
->skip_flush
= skip_flush
;
689 mon
->use_io_thr
= use_io_thr
;
690 mon
->qmp
.qmp_requests
= g_queue_new();
691 mon
->qmp
.qmp_responses
= g_queue_new();
694 static void monitor_data_destroy(Monitor
*mon
)
696 g_free(mon
->mon_cpu_path
);
697 qemu_chr_fe_deinit(&mon
->chr
, false);
698 if (monitor_is_qmp(mon
)) {
699 json_message_parser_destroy(&mon
->qmp
.parser
);
701 readline_free(mon
->rs
);
702 QDECREF(mon
->outbuf
);
703 qemu_mutex_destroy(&mon
->out_lock
);
704 qemu_mutex_destroy(&mon
->qmp
.qmp_queue_lock
);
705 g_queue_free(mon
->qmp
.qmp_requests
);
706 g_queue_free(mon
->qmp
.qmp_responses
);
709 char *qmp_human_monitor_command(const char *command_line
, bool has_cpu_index
,
710 int64_t cpu_index
, Error
**errp
)
713 Monitor
*old_mon
, hmp
;
715 monitor_data_init(&hmp
, true, false);
721 int ret
= monitor_set_cpu(cpu_index
);
724 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "cpu-index",
730 handle_hmp_command(&hmp
, command_line
);
733 qemu_mutex_lock(&hmp
.out_lock
);
734 if (qstring_get_length(hmp
.outbuf
) > 0) {
735 output
= g_strdup(qstring_get_str(hmp
.outbuf
));
737 output
= g_strdup("");
739 qemu_mutex_unlock(&hmp
.out_lock
);
742 monitor_data_destroy(&hmp
);
746 static int compare_cmd(const char *name
, const char *list
)
748 const char *p
, *pstart
;
756 p
= pstart
+ strlen(pstart
);
757 if ((p
- pstart
) == len
&& !memcmp(pstart
, name
, len
))
766 static int get_str(char *buf
, int buf_size
, const char **pp
)
774 while (qemu_isspace(*p
)) {
785 while (*p
!= '\0' && *p
!= '\"') {
801 printf("unsupported escape code: '\\%c'\n", c
);
804 if ((q
- buf
) < buf_size
- 1) {
808 if ((q
- buf
) < buf_size
- 1) {
815 printf("unterminated string\n");
820 while (*p
!= '\0' && !qemu_isspace(*p
)) {
821 if ((q
- buf
) < buf_size
- 1) {
834 static void free_cmdline_args(char **args
, int nb_args
)
838 assert(nb_args
<= MAX_ARGS
);
840 for (i
= 0; i
< nb_args
; i
++) {
847 * Parse the command line to get valid args.
848 * @cmdline: command line to be parsed.
849 * @pnb_args: location to store the number of args, must NOT be NULL.
850 * @args: location to store the args, which should be freed by caller, must
853 * Returns 0 on success, negative on failure.
855 * NOTE: this parser is an approximate form of the real command parser. Number
856 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
857 * return with failure.
859 static int parse_cmdline(const char *cmdline
,
860 int *pnb_args
, char **args
)
869 while (qemu_isspace(*p
)) {
875 if (nb_args
>= MAX_ARGS
) {
878 ret
= get_str(buf
, sizeof(buf
), &p
);
882 args
[nb_args
] = g_strdup(buf
);
889 free_cmdline_args(args
, nb_args
);
893 static void help_cmd_dump_one(Monitor
*mon
,
894 const mon_cmd_t
*cmd
,
900 for (i
= 0; i
< prefix_args_nb
; i
++) {
901 monitor_printf(mon
, "%s ", prefix_args
[i
]);
903 monitor_printf(mon
, "%s %s -- %s\n", cmd
->name
, cmd
->params
, cmd
->help
);
906 /* @args[@arg_index] is the valid command need to find in @cmds */
907 static void help_cmd_dump(Monitor
*mon
, const mon_cmd_t
*cmds
,
908 char **args
, int nb_args
, int arg_index
)
910 const mon_cmd_t
*cmd
;
912 /* No valid arg need to compare with, dump all in *cmds */
913 if (arg_index
>= nb_args
) {
914 for (cmd
= cmds
; cmd
->name
!= NULL
; cmd
++) {
915 help_cmd_dump_one(mon
, cmd
, args
, arg_index
);
920 /* Find one entry to dump */
921 for (cmd
= cmds
; cmd
->name
!= NULL
; cmd
++) {
922 if (compare_cmd(args
[arg_index
], cmd
->name
)) {
923 if (cmd
->sub_table
) {
924 /* continue with next arg */
925 help_cmd_dump(mon
, cmd
->sub_table
,
926 args
, nb_args
, arg_index
+ 1);
928 help_cmd_dump_one(mon
, cmd
, args
, arg_index
);
935 static void help_cmd(Monitor
*mon
, const char *name
)
937 char *args
[MAX_ARGS
];
940 /* 1. parse user input */
942 /* special case for log, directly dump and return */
943 if (!strcmp(name
, "log")) {
944 const QEMULogItem
*item
;
945 monitor_printf(mon
, "Log items (comma separated):\n");
946 monitor_printf(mon
, "%-10s %s\n", "none", "remove all logs");
947 for (item
= qemu_log_items
; item
->mask
!= 0; item
++) {
948 monitor_printf(mon
, "%-10s %s\n", item
->name
, item
->help
);
953 if (parse_cmdline(name
, &nb_args
, args
) < 0) {
958 /* 2. dump the contents according to parsed args */
959 help_cmd_dump(mon
, mon
->cmd_table
, args
, nb_args
, 0);
961 free_cmdline_args(args
, nb_args
);
964 static void do_help_cmd(Monitor
*mon
, const QDict
*qdict
)
966 help_cmd(mon
, qdict_get_try_str(qdict
, "name"));
969 static void hmp_trace_event(Monitor
*mon
, const QDict
*qdict
)
971 const char *tp_name
= qdict_get_str(qdict
, "name");
972 bool new_state
= qdict_get_bool(qdict
, "option");
973 bool has_vcpu
= qdict_haskey(qdict
, "vcpu");
974 int vcpu
= qdict_get_try_int(qdict
, "vcpu", 0);
975 Error
*local_err
= NULL
;
978 monitor_printf(mon
, "argument vcpu must be positive");
982 qmp_trace_event_set_state(tp_name
, new_state
, true, true, has_vcpu
, vcpu
, &local_err
);
984 error_report_err(local_err
);
988 #ifdef CONFIG_TRACE_SIMPLE
989 static void hmp_trace_file(Monitor
*mon
, const QDict
*qdict
)
991 const char *op
= qdict_get_try_str(qdict
, "op");
992 const char *arg
= qdict_get_try_str(qdict
, "arg");
995 st_print_trace_file_status((FILE *)mon
, &monitor_fprintf
);
996 } else if (!strcmp(op
, "on")) {
997 st_set_trace_file_enabled(true);
998 } else if (!strcmp(op
, "off")) {
999 st_set_trace_file_enabled(false);
1000 } else if (!strcmp(op
, "flush")) {
1001 st_flush_trace_buffer();
1002 } else if (!strcmp(op
, "set")) {
1004 st_set_trace_file(arg
);
1007 monitor_printf(mon
, "unexpected argument \"%s\"\n", op
);
1008 help_cmd(mon
, "trace-file");
1013 static void hmp_info_help(Monitor
*mon
, const QDict
*qdict
)
1015 help_cmd(mon
, "info");
1018 static void query_commands_cb(QmpCommand
*cmd
, void *opaque
)
1020 CommandInfoList
*info
, **list
= opaque
;
1022 if (!cmd
->enabled
) {
1026 info
= g_malloc0(sizeof(*info
));
1027 info
->value
= g_malloc0(sizeof(*info
->value
));
1028 info
->value
->name
= g_strdup(cmd
->name
);
1033 CommandInfoList
*qmp_query_commands(Error
**errp
)
1035 CommandInfoList
*list
= NULL
;
1037 qmp_for_each_command(cur_mon
->qmp
.commands
, query_commands_cb
, &list
);
1042 EventInfoList
*qmp_query_events(Error
**errp
)
1044 EventInfoList
*info
, *ev_list
= NULL
;
1047 for (e
= 0 ; e
< QAPI_EVENT__MAX
; e
++) {
1048 const char *event_name
= QAPIEvent_str(e
);
1049 assert(event_name
!= NULL
);
1050 info
= g_malloc0(sizeof(*info
));
1051 info
->value
= g_malloc0(sizeof(*info
->value
));
1052 info
->value
->name
= g_strdup(event_name
);
1054 info
->next
= ev_list
;
1062 * Minor hack: generated marshalling suppressed for this command
1063 * ('gen': false in the schema) so we can parse the JSON string
1064 * directly into QObject instead of first parsing it with
1065 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
1066 * to QObject with generated output marshallers, every time. Instead,
1067 * we do it in test-qobject-input-visitor.c, just to make sure
1068 * qapi-gen.py's output actually conforms to the schema.
1070 static void qmp_query_qmp_schema(QDict
*qdict
, QObject
**ret_data
,
1073 *ret_data
= qobject_from_qlit(&qmp_schema_qlit
);
1077 * We used to define commands in qmp-commands.hx in addition to the
1078 * QAPI schema. This permitted defining some of them only in certain
1079 * configurations. query-commands has always reflected that (good,
1080 * because it lets QMP clients figure out what's actually available),
1081 * while query-qmp-schema never did (not so good). This function is a
1082 * hack to keep the configuration-specific commands defined exactly as
1083 * before, even though qmp-commands.hx is gone.
1085 * FIXME Educate the QAPI schema on configuration-specific commands,
1086 * and drop this hack.
1088 static void qmp_unregister_commands_hack(void)
1090 #ifndef CONFIG_SPICE
1091 qmp_unregister_command(&qmp_commands
, "query-spice");
1093 #ifndef CONFIG_REPLICATION
1094 qmp_unregister_command(&qmp_commands
, "xen-set-replication");
1095 qmp_unregister_command(&qmp_commands
, "query-xen-replication-status");
1096 qmp_unregister_command(&qmp_commands
, "xen-colo-do-checkpoint");
1099 qmp_unregister_command(&qmp_commands
, "rtc-reset-reinjection");
1100 qmp_unregister_command(&qmp_commands
, "query-sev");
1101 qmp_unregister_command(&qmp_commands
, "query-sev-launch-measure");
1102 qmp_unregister_command(&qmp_commands
, "query-sev-capabilities");
1104 #ifndef TARGET_S390X
1105 qmp_unregister_command(&qmp_commands
, "dump-skeys");
1108 qmp_unregister_command(&qmp_commands
, "query-gic-capabilities");
1110 #if !defined(TARGET_S390X) && !defined(TARGET_I386)
1111 qmp_unregister_command(&qmp_commands
, "query-cpu-model-expansion");
1113 #if !defined(TARGET_S390X)
1114 qmp_unregister_command(&qmp_commands
, "query-cpu-model-baseline");
1115 qmp_unregister_command(&qmp_commands
, "query-cpu-model-comparison");
1117 #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
1118 && !defined(TARGET_S390X)
1119 qmp_unregister_command(&qmp_commands
, "query-cpu-definitions");
1123 static void monitor_init_qmp_commands(void)
1126 * Two command lists:
1127 * - qmp_commands contains all QMP commands
1128 * - qmp_cap_negotiation_commands contains just
1129 * "qmp_capabilities", to enforce capability negotiation
1132 qmp_init_marshal(&qmp_commands
);
1134 qmp_register_command(&qmp_commands
, "query-qmp-schema",
1135 qmp_query_qmp_schema
,
1137 qmp_register_command(&qmp_commands
, "device_add", qmp_device_add
,
1139 qmp_register_command(&qmp_commands
, "netdev_add", qmp_netdev_add
,
1142 qmp_unregister_commands_hack();
1144 QTAILQ_INIT(&qmp_cap_negotiation_commands
);
1145 qmp_register_command(&qmp_cap_negotiation_commands
, "qmp_capabilities",
1146 qmp_marshal_qmp_capabilities
, QCO_NO_OPTIONS
);
1149 static bool qmp_cap_enabled(Monitor
*mon
, QMPCapability cap
)
1151 return mon
->qmp
.qmp_caps
[cap
];
1154 static bool qmp_oob_enabled(Monitor
*mon
)
1156 return qmp_cap_enabled(mon
, QMP_CAPABILITY_OOB
);
1159 static void qmp_caps_check(Monitor
*mon
, QMPCapabilityList
*list
,
1162 for (; list
; list
= list
->next
) {
1163 assert(list
->value
< QMP_CAPABILITY__MAX
);
1164 switch (list
->value
) {
1165 case QMP_CAPABILITY_OOB
:
1166 if (!mon
->use_io_thr
) {
1168 * Out-Of-Band only works with monitors that are
1169 * running on dedicated IOThread.
1171 error_setg(errp
, "This monitor does not support "
1172 "Out-Of-Band (OOB)");
1182 /* This function should only be called after capabilities are checked. */
1183 static void qmp_caps_apply(Monitor
*mon
, QMPCapabilityList
*list
)
1185 for (; list
; list
= list
->next
) {
1186 mon
->qmp
.qmp_caps
[list
->value
] = true;
1191 * Return true if check successful, or false otherwise. When false is
1192 * returned, detailed error will be in errp if provided.
1194 static bool qmp_cmd_oob_check(Monitor
*mon
, QDict
*req
, Error
**errp
)
1196 const char *command
;
1199 command
= qdict_get_try_str(req
, "execute");
1201 error_setg(errp
, "Command field 'execute' missing");
1205 cmd
= qmp_find_command(mon
->qmp
.commands
, command
);
1207 error_set(errp
, ERROR_CLASS_COMMAND_NOT_FOUND
,
1208 "The command %s has not been found", command
);
1212 if (qmp_is_oob(req
)) {
1213 if (!qmp_oob_enabled(mon
)) {
1214 error_setg(errp
, "Please enable Out-Of-Band first "
1215 "for the session during capabilities negotiation");
1218 if (!(cmd
->options
& QCO_ALLOW_OOB
)) {
1219 error_setg(errp
, "The command %s does not support OOB",
1228 void qmp_qmp_capabilities(bool has_enable
, QMPCapabilityList
*enable
,
1231 Error
*local_err
= NULL
;
1233 if (cur_mon
->qmp
.commands
== &qmp_commands
) {
1234 error_set(errp
, ERROR_CLASS_COMMAND_NOT_FOUND
,
1235 "Capabilities negotiation is already complete, command "
1240 /* Enable QMP capabilities provided by the client if applicable. */
1242 qmp_caps_check(cur_mon
, enable
, &local_err
);
1245 * Failed check on any of the capabilities will fail the
1246 * entire command (and thus not apply any of the other
1247 * capabilities that were also requested).
1249 error_propagate(errp
, local_err
);
1252 qmp_caps_apply(cur_mon
, enable
);
1255 cur_mon
->qmp
.commands
= &qmp_commands
;
1258 /* set the current CPU defined by the user */
1259 int monitor_set_cpu(int cpu_index
)
1263 cpu
= qemu_get_cpu(cpu_index
);
1267 g_free(cur_mon
->mon_cpu_path
);
1268 cur_mon
->mon_cpu_path
= object_get_canonical_path(OBJECT(cpu
));
1272 static CPUState
*mon_get_cpu_sync(bool synchronize
)
1276 if (cur_mon
->mon_cpu_path
) {
1277 cpu
= (CPUState
*) object_resolve_path_type(cur_mon
->mon_cpu_path
,
1280 g_free(cur_mon
->mon_cpu_path
);
1281 cur_mon
->mon_cpu_path
= NULL
;
1284 if (!cur_mon
->mon_cpu_path
) {
1288 monitor_set_cpu(first_cpu
->cpu_index
);
1292 cpu_synchronize_state(cpu
);
1297 CPUState
*mon_get_cpu(void)
1299 return mon_get_cpu_sync(true);
1302 CPUArchState
*mon_get_cpu_env(void)
1304 CPUState
*cs
= mon_get_cpu();
1306 return cs
? cs
->env_ptr
: NULL
;
1309 int monitor_get_cpu_index(void)
1311 CPUState
*cs
= mon_get_cpu_sync(false);
1313 return cs
? cs
->cpu_index
: UNASSIGNED_CPU_INDEX
;
1316 static void hmp_info_registers(Monitor
*mon
, const QDict
*qdict
)
1318 bool all_cpus
= qdict_get_try_bool(qdict
, "cpustate_all", false);
1323 monitor_printf(mon
, "\nCPU#%d\n", cs
->cpu_index
);
1324 cpu_dump_state(cs
, (FILE *)mon
, monitor_fprintf
, CPU_DUMP_FPU
);
1330 monitor_printf(mon
, "No CPU available\n");
1334 cpu_dump_state(cs
, (FILE *)mon
, monitor_fprintf
, CPU_DUMP_FPU
);
1339 static void hmp_info_jit(Monitor
*mon
, const QDict
*qdict
)
1341 if (!tcg_enabled()) {
1342 error_report("JIT information is only available with accel=tcg");
1346 dump_exec_info((FILE *)mon
, monitor_fprintf
);
1347 dump_drift_info((FILE *)mon
, monitor_fprintf
);
1350 static void hmp_info_opcount(Monitor
*mon
, const QDict
*qdict
)
1352 dump_opcount_info((FILE *)mon
, monitor_fprintf
);
1356 static void hmp_info_history(Monitor
*mon
, const QDict
*qdict
)
1365 str
= readline_get_history(mon
->rs
, i
);
1368 monitor_printf(mon
, "%d: '%s'\n", i
, str
);
1373 static void hmp_info_cpustats(Monitor
*mon
, const QDict
*qdict
)
1375 CPUState
*cs
= mon_get_cpu();
1378 monitor_printf(mon
, "No CPU available\n");
1381 cpu_dump_statistics(cs
, (FILE *)mon
, &monitor_fprintf
, 0);
1384 static void hmp_info_trace_events(Monitor
*mon
, const QDict
*qdict
)
1386 const char *name
= qdict_get_try_str(qdict
, "name");
1387 bool has_vcpu
= qdict_haskey(qdict
, "vcpu");
1388 int vcpu
= qdict_get_try_int(qdict
, "vcpu", 0);
1389 TraceEventInfoList
*events
;
1390 TraceEventInfoList
*elem
;
1391 Error
*local_err
= NULL
;
1397 monitor_printf(mon
, "argument vcpu must be positive");
1401 events
= qmp_trace_event_get_state(name
, has_vcpu
, vcpu
, &local_err
);
1403 error_report_err(local_err
);
1407 for (elem
= events
; elem
!= NULL
; elem
= elem
->next
) {
1408 monitor_printf(mon
, "%s : state %u\n",
1410 elem
->value
->state
== TRACE_EVENT_STATE_ENABLED
? 1 : 0);
1412 qapi_free_TraceEventInfoList(events
);
1415 void qmp_client_migrate_info(const char *protocol
, const char *hostname
,
1416 bool has_port
, int64_t port
,
1417 bool has_tls_port
, int64_t tls_port
,
1418 bool has_cert_subject
, const char *cert_subject
,
1421 if (strcmp(protocol
, "spice") == 0) {
1422 if (!qemu_using_spice(errp
)) {
1426 if (!has_port
&& !has_tls_port
) {
1427 error_setg(errp
, QERR_MISSING_PARAMETER
, "port/tls-port");
1431 if (qemu_spice_migrate_info(hostname
,
1432 has_port
? port
: -1,
1433 has_tls_port
? tls_port
: -1,
1435 error_setg(errp
, QERR_UNDEFINED_ERROR
);
1441 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "protocol", "spice");
1444 static void hmp_logfile(Monitor
*mon
, const QDict
*qdict
)
1448 qemu_set_log_filename(qdict_get_str(qdict
, "filename"), &err
);
1450 error_report_err(err
);
1454 static void hmp_log(Monitor
*mon
, const QDict
*qdict
)
1457 const char *items
= qdict_get_str(qdict
, "items");
1459 if (!strcmp(items
, "none")) {
1462 mask
= qemu_str_to_log_mask(items
);
1464 help_cmd(mon
, "log");
1471 static void hmp_singlestep(Monitor
*mon
, const QDict
*qdict
)
1473 const char *option
= qdict_get_try_str(qdict
, "option");
1474 if (!option
|| !strcmp(option
, "on")) {
1476 } else if (!strcmp(option
, "off")) {
1479 monitor_printf(mon
, "unexpected option %s\n", option
);
1483 static void hmp_gdbserver(Monitor
*mon
, const QDict
*qdict
)
1485 const char *device
= qdict_get_try_str(qdict
, "device");
1487 device
= "tcp::" DEFAULT_GDBSTUB_PORT
;
1488 if (gdbserver_start(device
) < 0) {
1489 monitor_printf(mon
, "Could not open gdbserver on device '%s'\n",
1491 } else if (strcmp(device
, "none") == 0) {
1492 monitor_printf(mon
, "Disabled gdbserver\n");
1494 monitor_printf(mon
, "Waiting for gdb connection on device '%s'\n",
1499 static void hmp_watchdog_action(Monitor
*mon
, const QDict
*qdict
)
1501 const char *action
= qdict_get_str(qdict
, "action");
1502 if (select_watchdog_action(action
) == -1) {
1503 monitor_printf(mon
, "Unknown watchdog action '%s'\n", action
);
1507 static void monitor_printc(Monitor
*mon
, int c
)
1509 monitor_printf(mon
, "'");
1512 monitor_printf(mon
, "\\'");
1515 monitor_printf(mon
, "\\\\");
1518 monitor_printf(mon
, "\\n");
1521 monitor_printf(mon
, "\\r");
1524 if (c
>= 32 && c
<= 126) {
1525 monitor_printf(mon
, "%c", c
);
1527 monitor_printf(mon
, "\\x%02x", c
);
1531 monitor_printf(mon
, "'");
1534 static void memory_dump(Monitor
*mon
, int count
, int format
, int wsize
,
1535 hwaddr addr
, int is_physical
)
1537 int l
, line_size
, i
, max_digits
, len
;
1540 CPUState
*cs
= mon_get_cpu();
1542 if (!cs
&& (format
== 'i' || !is_physical
)) {
1543 monitor_printf(mon
, "Can not dump without CPU\n");
1547 if (format
== 'i') {
1548 monitor_disas(mon
, cs
, addr
, count
, is_physical
);
1552 len
= wsize
* count
;
1561 max_digits
= DIV_ROUND_UP(wsize
* 8, 3);
1565 max_digits
= (wsize
* 8) / 4;
1569 max_digits
= DIV_ROUND_UP(wsize
* 8 * 10, 33);
1578 monitor_printf(mon
, TARGET_FMT_plx
":", addr
);
1580 monitor_printf(mon
, TARGET_FMT_lx
":", (target_ulong
)addr
);
1585 cpu_physical_memory_read(addr
, buf
, l
);
1587 if (cpu_memory_rw_debug(cs
, addr
, buf
, l
, 0) < 0) {
1588 monitor_printf(mon
, " Cannot access memory\n");
1597 v
= ldub_p(buf
+ i
);
1600 v
= lduw_p(buf
+ i
);
1603 v
= (uint32_t)ldl_p(buf
+ i
);
1609 monitor_printf(mon
, " ");
1612 monitor_printf(mon
, "%#*" PRIo64
, max_digits
, v
);
1615 monitor_printf(mon
, "0x%0*" PRIx64
, max_digits
, v
);
1618 monitor_printf(mon
, "%*" PRIu64
, max_digits
, v
);
1621 monitor_printf(mon
, "%*" PRId64
, max_digits
, v
);
1624 monitor_printc(mon
, v
);
1629 monitor_printf(mon
, "\n");
1635 static void hmp_memory_dump(Monitor
*mon
, const QDict
*qdict
)
1637 int count
= qdict_get_int(qdict
, "count");
1638 int format
= qdict_get_int(qdict
, "format");
1639 int size
= qdict_get_int(qdict
, "size");
1640 target_long addr
= qdict_get_int(qdict
, "addr");
1642 memory_dump(mon
, count
, format
, size
, addr
, 0);
1645 static void hmp_physical_memory_dump(Monitor
*mon
, const QDict
*qdict
)
1647 int count
= qdict_get_int(qdict
, "count");
1648 int format
= qdict_get_int(qdict
, "format");
1649 int size
= qdict_get_int(qdict
, "size");
1650 hwaddr addr
= qdict_get_int(qdict
, "addr");
1652 memory_dump(mon
, count
, format
, size
, addr
, 1);
1655 static void *gpa2hva(MemoryRegion
**p_mr
, hwaddr addr
, Error
**errp
)
1657 MemoryRegionSection mrs
= memory_region_find(get_system_memory(),
1661 error_setg(errp
, "No memory is mapped at address 0x%" HWADDR_PRIx
, addr
);
1665 if (!memory_region_is_ram(mrs
.mr
) && !memory_region_is_romd(mrs
.mr
)) {
1666 error_setg(errp
, "Memory at address 0x%" HWADDR_PRIx
"is not RAM", addr
);
1667 memory_region_unref(mrs
.mr
);
1672 return qemu_map_ram_ptr(mrs
.mr
->ram_block
, mrs
.offset_within_region
);
1675 static void hmp_gpa2hva(Monitor
*mon
, const QDict
*qdict
)
1677 hwaddr addr
= qdict_get_int(qdict
, "addr");
1678 Error
*local_err
= NULL
;
1679 MemoryRegion
*mr
= NULL
;
1682 ptr
= gpa2hva(&mr
, addr
, &local_err
);
1684 error_report_err(local_err
);
1688 monitor_printf(mon
, "Host virtual address for 0x%" HWADDR_PRIx
1690 addr
, mr
->name
, ptr
);
1692 memory_region_unref(mr
);
1696 static uint64_t vtop(void *ptr
, Error
**errp
)
1700 uintptr_t addr
= (uintptr_t) ptr
;
1701 uintptr_t pagesize
= getpagesize();
1702 off_t offset
= addr
/ pagesize
* sizeof(pinfo
);
1705 fd
= open("/proc/self/pagemap", O_RDONLY
);
1707 error_setg_errno(errp
, errno
, "Cannot open /proc/self/pagemap");
1711 /* Force copy-on-write if necessary. */
1712 atomic_add((uint8_t *)ptr
, 0);
1714 if (pread(fd
, &pinfo
, sizeof(pinfo
), offset
) != sizeof(pinfo
)) {
1715 error_setg_errno(errp
, errno
, "Cannot read pagemap");
1718 if ((pinfo
& (1ull << 63)) == 0) {
1719 error_setg(errp
, "Page not present");
1722 ret
= ((pinfo
& 0x007fffffffffffffull
) * pagesize
) | (addr
& (pagesize
- 1));
1729 static void hmp_gpa2hpa(Monitor
*mon
, const QDict
*qdict
)
1731 hwaddr addr
= qdict_get_int(qdict
, "addr");
1732 Error
*local_err
= NULL
;
1733 MemoryRegion
*mr
= NULL
;
1737 ptr
= gpa2hva(&mr
, addr
, &local_err
);
1739 error_report_err(local_err
);
1743 physaddr
= vtop(ptr
, &local_err
);
1745 error_report_err(local_err
);
1747 monitor_printf(mon
, "Host physical address for 0x%" HWADDR_PRIx
1748 " (%s) is 0x%" PRIx64
"\n",
1749 addr
, mr
->name
, (uint64_t) physaddr
);
1752 memory_region_unref(mr
);
1756 static void do_print(Monitor
*mon
, const QDict
*qdict
)
1758 int format
= qdict_get_int(qdict
, "format");
1759 hwaddr val
= qdict_get_int(qdict
, "val");
1763 monitor_printf(mon
, "%#" HWADDR_PRIo
, val
);
1766 monitor_printf(mon
, "%#" HWADDR_PRIx
, val
);
1769 monitor_printf(mon
, "%" HWADDR_PRIu
, val
);
1773 monitor_printf(mon
, "%" HWADDR_PRId
, val
);
1776 monitor_printc(mon
, val
);
1779 monitor_printf(mon
, "\n");
1782 static void hmp_sum(Monitor
*mon
, const QDict
*qdict
)
1786 uint32_t start
= qdict_get_int(qdict
, "start");
1787 uint32_t size
= qdict_get_int(qdict
, "size");
1790 for(addr
= start
; addr
< (start
+ size
); addr
++) {
1791 uint8_t val
= address_space_ldub(&address_space_memory
, addr
,
1792 MEMTXATTRS_UNSPECIFIED
, NULL
);
1793 /* BSD sum algorithm ('sum' Unix command) */
1794 sum
= (sum
>> 1) | (sum
<< 15);
1797 monitor_printf(mon
, "%05d\n", sum
);
1800 static int mouse_button_state
;
1802 static void hmp_mouse_move(Monitor
*mon
, const QDict
*qdict
)
1804 int dx
, dy
, dz
, button
;
1805 const char *dx_str
= qdict_get_str(qdict
, "dx_str");
1806 const char *dy_str
= qdict_get_str(qdict
, "dy_str");
1807 const char *dz_str
= qdict_get_try_str(qdict
, "dz_str");
1809 dx
= strtol(dx_str
, NULL
, 0);
1810 dy
= strtol(dy_str
, NULL
, 0);
1811 qemu_input_queue_rel(NULL
, INPUT_AXIS_X
, dx
);
1812 qemu_input_queue_rel(NULL
, INPUT_AXIS_Y
, dy
);
1815 dz
= strtol(dz_str
, NULL
, 0);
1817 button
= (dz
> 0) ? INPUT_BUTTON_WHEEL_UP
: INPUT_BUTTON_WHEEL_DOWN
;
1818 qemu_input_queue_btn(NULL
, button
, true);
1819 qemu_input_event_sync();
1820 qemu_input_queue_btn(NULL
, button
, false);
1823 qemu_input_event_sync();
1826 static void hmp_mouse_button(Monitor
*mon
, const QDict
*qdict
)
1828 static uint32_t bmap
[INPUT_BUTTON__MAX
] = {
1829 [INPUT_BUTTON_LEFT
] = MOUSE_EVENT_LBUTTON
,
1830 [INPUT_BUTTON_MIDDLE
] = MOUSE_EVENT_MBUTTON
,
1831 [INPUT_BUTTON_RIGHT
] = MOUSE_EVENT_RBUTTON
,
1833 int button_state
= qdict_get_int(qdict
, "button_state");
1835 if (mouse_button_state
== button_state
) {
1838 qemu_input_update_buttons(NULL
, bmap
, mouse_button_state
, button_state
);
1839 qemu_input_event_sync();
1840 mouse_button_state
= button_state
;
1843 static void hmp_ioport_read(Monitor
*mon
, const QDict
*qdict
)
1845 int size
= qdict_get_int(qdict
, "size");
1846 int addr
= qdict_get_int(qdict
, "addr");
1847 int has_index
= qdict_haskey(qdict
, "index");
1852 int index
= qdict_get_int(qdict
, "index");
1853 cpu_outb(addr
& IOPORTS_MASK
, index
& 0xff);
1861 val
= cpu_inb(addr
);
1865 val
= cpu_inw(addr
);
1869 val
= cpu_inl(addr
);
1873 monitor_printf(mon
, "port%c[0x%04x] = %#0*x\n",
1874 suffix
, addr
, size
* 2, val
);
1877 static void hmp_ioport_write(Monitor
*mon
, const QDict
*qdict
)
1879 int size
= qdict_get_int(qdict
, "size");
1880 int addr
= qdict_get_int(qdict
, "addr");
1881 int val
= qdict_get_int(qdict
, "val");
1883 addr
&= IOPORTS_MASK
;
1888 cpu_outb(addr
, val
);
1891 cpu_outw(addr
, val
);
1894 cpu_outl(addr
, val
);
1899 static void hmp_boot_set(Monitor
*mon
, const QDict
*qdict
)
1901 Error
*local_err
= NULL
;
1902 const char *bootdevice
= qdict_get_str(qdict
, "bootdevice");
1904 qemu_boot_set(bootdevice
, &local_err
);
1906 error_report_err(local_err
);
1908 monitor_printf(mon
, "boot device list now set to %s\n", bootdevice
);
1912 static void hmp_info_mtree(Monitor
*mon
, const QDict
*qdict
)
1914 bool flatview
= qdict_get_try_bool(qdict
, "flatview", false);
1915 bool dispatch_tree
= qdict_get_try_bool(qdict
, "dispatch_tree", false);
1917 mtree_info((fprintf_function
)monitor_printf
, mon
, flatview
, dispatch_tree
);
1920 static void hmp_info_numa(Monitor
*mon
, const QDict
*qdict
)
1923 NumaNodeMem
*node_mem
;
1924 CpuInfoList
*cpu_list
, *cpu
;
1926 cpu_list
= qmp_query_cpus(&error_abort
);
1927 node_mem
= g_new0(NumaNodeMem
, nb_numa_nodes
);
1929 query_numa_node_mem(node_mem
);
1930 monitor_printf(mon
, "%d nodes\n", nb_numa_nodes
);
1931 for (i
= 0; i
< nb_numa_nodes
; i
++) {
1932 monitor_printf(mon
, "node %d cpus:", i
);
1933 for (cpu
= cpu_list
; cpu
; cpu
= cpu
->next
) {
1934 if (cpu
->value
->has_props
&& cpu
->value
->props
->has_node_id
&&
1935 cpu
->value
->props
->node_id
== i
) {
1936 monitor_printf(mon
, " %" PRIi64
, cpu
->value
->CPU
);
1939 monitor_printf(mon
, "\n");
1940 monitor_printf(mon
, "node %d size: %" PRId64
" MB\n", i
,
1941 node_mem
[i
].node_mem
>> 20);
1942 monitor_printf(mon
, "node %d plugged: %" PRId64
" MB\n", i
,
1943 node_mem
[i
].node_plugged_mem
>> 20);
1945 qapi_free_CpuInfoList(cpu_list
);
1949 #ifdef CONFIG_PROFILER
1954 static void hmp_info_profile(Monitor
*mon
, const QDict
*qdict
)
1956 monitor_printf(mon
, "async time %" PRId64
" (%0.3f)\n",
1957 dev_time
, dev_time
/ (double)NANOSECONDS_PER_SECOND
);
1958 monitor_printf(mon
, "qemu time %" PRId64
" (%0.3f)\n",
1959 tcg_time
, tcg_time
/ (double)NANOSECONDS_PER_SECOND
);
1964 static void hmp_info_profile(Monitor
*mon
, const QDict
*qdict
)
1966 monitor_printf(mon
, "Internal profiler not compiled\n");
1970 /* Capture support */
1971 static QLIST_HEAD (capture_list_head
, CaptureState
) capture_head
;
1973 static void hmp_info_capture(Monitor
*mon
, const QDict
*qdict
)
1978 for (s
= capture_head
.lh_first
, i
= 0; s
; s
= s
->entries
.le_next
, ++i
) {
1979 monitor_printf(mon
, "[%d]: ", i
);
1980 s
->ops
.info (s
->opaque
);
1984 static void hmp_stopcapture(Monitor
*mon
, const QDict
*qdict
)
1987 int n
= qdict_get_int(qdict
, "n");
1990 for (s
= capture_head
.lh_first
, i
= 0; s
; s
= s
->entries
.le_next
, ++i
) {
1992 s
->ops
.destroy (s
->opaque
);
1993 QLIST_REMOVE (s
, entries
);
2000 static void hmp_wavcapture(Monitor
*mon
, const QDict
*qdict
)
2002 const char *path
= qdict_get_str(qdict
, "path");
2003 int has_freq
= qdict_haskey(qdict
, "freq");
2004 int freq
= qdict_get_try_int(qdict
, "freq", -1);
2005 int has_bits
= qdict_haskey(qdict
, "bits");
2006 int bits
= qdict_get_try_int(qdict
, "bits", -1);
2007 int has_channels
= qdict_haskey(qdict
, "nchannels");
2008 int nchannels
= qdict_get_try_int(qdict
, "nchannels", -1);
2011 s
= g_malloc0 (sizeof (*s
));
2013 freq
= has_freq
? freq
: 44100;
2014 bits
= has_bits
? bits
: 16;
2015 nchannels
= has_channels
? nchannels
: 2;
2017 if (wav_start_capture (s
, path
, freq
, bits
, nchannels
)) {
2018 monitor_printf(mon
, "Failed to add wave capture\n");
2022 QLIST_INSERT_HEAD (&capture_head
, s
, entries
);
2025 static qemu_acl
*find_acl(Monitor
*mon
, const char *name
)
2027 qemu_acl
*acl
= qemu_acl_find(name
);
2030 monitor_printf(mon
, "acl: unknown list '%s'\n", name
);
2035 static void hmp_acl_show(Monitor
*mon
, const QDict
*qdict
)
2037 const char *aclname
= qdict_get_str(qdict
, "aclname");
2038 qemu_acl
*acl
= find_acl(mon
, aclname
);
2039 qemu_acl_entry
*entry
;
2043 monitor_printf(mon
, "policy: %s\n",
2044 acl
->defaultDeny
? "deny" : "allow");
2045 QTAILQ_FOREACH(entry
, &acl
->entries
, next
) {
2047 monitor_printf(mon
, "%d: %s %s\n", i
,
2048 entry
->deny
? "deny" : "allow", entry
->match
);
2053 static void hmp_acl_reset(Monitor
*mon
, const QDict
*qdict
)
2055 const char *aclname
= qdict_get_str(qdict
, "aclname");
2056 qemu_acl
*acl
= find_acl(mon
, aclname
);
2059 qemu_acl_reset(acl
);
2060 monitor_printf(mon
, "acl: removed all rules\n");
2064 static void hmp_acl_policy(Monitor
*mon
, const QDict
*qdict
)
2066 const char *aclname
= qdict_get_str(qdict
, "aclname");
2067 const char *policy
= qdict_get_str(qdict
, "policy");
2068 qemu_acl
*acl
= find_acl(mon
, aclname
);
2071 if (strcmp(policy
, "allow") == 0) {
2072 acl
->defaultDeny
= 0;
2073 monitor_printf(mon
, "acl: policy set to 'allow'\n");
2074 } else if (strcmp(policy
, "deny") == 0) {
2075 acl
->defaultDeny
= 1;
2076 monitor_printf(mon
, "acl: policy set to 'deny'\n");
2078 monitor_printf(mon
, "acl: unknown policy '%s', "
2079 "expected 'deny' or 'allow'\n", policy
);
2084 static void hmp_acl_add(Monitor
*mon
, const QDict
*qdict
)
2086 const char *aclname
= qdict_get_str(qdict
, "aclname");
2087 const char *match
= qdict_get_str(qdict
, "match");
2088 const char *policy
= qdict_get_str(qdict
, "policy");
2089 int has_index
= qdict_haskey(qdict
, "index");
2090 int index
= qdict_get_try_int(qdict
, "index", -1);
2091 qemu_acl
*acl
= find_acl(mon
, aclname
);
2095 if (strcmp(policy
, "allow") == 0) {
2097 } else if (strcmp(policy
, "deny") == 0) {
2100 monitor_printf(mon
, "acl: unknown policy '%s', "
2101 "expected 'deny' or 'allow'\n", policy
);
2105 ret
= qemu_acl_insert(acl
, deny
, match
, index
);
2107 ret
= qemu_acl_append(acl
, deny
, match
);
2109 monitor_printf(mon
, "acl: unable to add acl entry\n");
2111 monitor_printf(mon
, "acl: added rule at position %d\n", ret
);
2115 static void hmp_acl_remove(Monitor
*mon
, const QDict
*qdict
)
2117 const char *aclname
= qdict_get_str(qdict
, "aclname");
2118 const char *match
= qdict_get_str(qdict
, "match");
2119 qemu_acl
*acl
= find_acl(mon
, aclname
);
2123 ret
= qemu_acl_remove(acl
, match
);
2125 monitor_printf(mon
, "acl: no matching acl entry\n");
2127 monitor_printf(mon
, "acl: removed rule at position %d\n", ret
);
2131 void qmp_getfd(const char *fdname
, Error
**errp
)
2136 fd
= qemu_chr_fe_get_msgfd(&cur_mon
->chr
);
2138 error_setg(errp
, QERR_FD_NOT_SUPPLIED
);
2142 if (qemu_isdigit(fdname
[0])) {
2144 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "fdname",
2145 "a name not starting with a digit");
2149 QLIST_FOREACH(monfd
, &cur_mon
->fds
, next
) {
2150 if (strcmp(monfd
->name
, fdname
) != 0) {
2159 monfd
= g_malloc0(sizeof(mon_fd_t
));
2160 monfd
->name
= g_strdup(fdname
);
2163 QLIST_INSERT_HEAD(&cur_mon
->fds
, monfd
, next
);
2166 void qmp_closefd(const char *fdname
, Error
**errp
)
2170 QLIST_FOREACH(monfd
, &cur_mon
->fds
, next
) {
2171 if (strcmp(monfd
->name
, fdname
) != 0) {
2175 QLIST_REMOVE(monfd
, next
);
2177 g_free(monfd
->name
);
2182 error_setg(errp
, QERR_FD_NOT_FOUND
, fdname
);
2185 int monitor_get_fd(Monitor
*mon
, const char *fdname
, Error
**errp
)
2189 QLIST_FOREACH(monfd
, &mon
->fds
, next
) {
2192 if (strcmp(monfd
->name
, fdname
) != 0) {
2198 /* caller takes ownership of fd */
2199 QLIST_REMOVE(monfd
, next
);
2200 g_free(monfd
->name
);
2206 error_setg(errp
, "File descriptor named '%s' has not been found", fdname
);
2210 static void monitor_fdset_cleanup(MonFdset
*mon_fdset
)
2212 MonFdsetFd
*mon_fdset_fd
;
2213 MonFdsetFd
*mon_fdset_fd_next
;
2215 QLIST_FOREACH_SAFE(mon_fdset_fd
, &mon_fdset
->fds
, next
, mon_fdset_fd_next
) {
2216 if ((mon_fdset_fd
->removed
||
2217 (QLIST_EMPTY(&mon_fdset
->dup_fds
) && mon_refcount
== 0)) &&
2218 runstate_is_running()) {
2219 close(mon_fdset_fd
->fd
);
2220 g_free(mon_fdset_fd
->opaque
);
2221 QLIST_REMOVE(mon_fdset_fd
, next
);
2222 g_free(mon_fdset_fd
);
2226 if (QLIST_EMPTY(&mon_fdset
->fds
) && QLIST_EMPTY(&mon_fdset
->dup_fds
)) {
2227 QLIST_REMOVE(mon_fdset
, next
);
2232 static void monitor_fdsets_cleanup(void)
2234 MonFdset
*mon_fdset
;
2235 MonFdset
*mon_fdset_next
;
2237 QLIST_FOREACH_SAFE(mon_fdset
, &mon_fdsets
, next
, mon_fdset_next
) {
2238 monitor_fdset_cleanup(mon_fdset
);
2242 AddfdInfo
*qmp_add_fd(bool has_fdset_id
, int64_t fdset_id
, bool has_opaque
,
2243 const char *opaque
, Error
**errp
)
2246 Monitor
*mon
= cur_mon
;
2249 fd
= qemu_chr_fe_get_msgfd(&mon
->chr
);
2251 error_setg(errp
, QERR_FD_NOT_SUPPLIED
);
2255 fdinfo
= monitor_fdset_add_fd(fd
, has_fdset_id
, fdset_id
,
2256 has_opaque
, opaque
, errp
);
2268 void qmp_remove_fd(int64_t fdset_id
, bool has_fd
, int64_t fd
, Error
**errp
)
2270 MonFdset
*mon_fdset
;
2271 MonFdsetFd
*mon_fdset_fd
;
2274 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2275 if (mon_fdset
->id
!= fdset_id
) {
2278 QLIST_FOREACH(mon_fdset_fd
, &mon_fdset
->fds
, next
) {
2280 if (mon_fdset_fd
->fd
!= fd
) {
2283 mon_fdset_fd
->removed
= true;
2286 mon_fdset_fd
->removed
= true;
2289 if (has_fd
&& !mon_fdset_fd
) {
2292 monitor_fdset_cleanup(mon_fdset
);
2298 snprintf(fd_str
, sizeof(fd_str
), "fdset-id:%" PRId64
", fd:%" PRId64
,
2301 snprintf(fd_str
, sizeof(fd_str
), "fdset-id:%" PRId64
, fdset_id
);
2303 error_setg(errp
, QERR_FD_NOT_FOUND
, fd_str
);
2306 FdsetInfoList
*qmp_query_fdsets(Error
**errp
)
2308 MonFdset
*mon_fdset
;
2309 MonFdsetFd
*mon_fdset_fd
;
2310 FdsetInfoList
*fdset_list
= NULL
;
2312 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2313 FdsetInfoList
*fdset_info
= g_malloc0(sizeof(*fdset_info
));
2314 FdsetFdInfoList
*fdsetfd_list
= NULL
;
2316 fdset_info
->value
= g_malloc0(sizeof(*fdset_info
->value
));
2317 fdset_info
->value
->fdset_id
= mon_fdset
->id
;
2319 QLIST_FOREACH(mon_fdset_fd
, &mon_fdset
->fds
, next
) {
2320 FdsetFdInfoList
*fdsetfd_info
;
2322 fdsetfd_info
= g_malloc0(sizeof(*fdsetfd_info
));
2323 fdsetfd_info
->value
= g_malloc0(sizeof(*fdsetfd_info
->value
));
2324 fdsetfd_info
->value
->fd
= mon_fdset_fd
->fd
;
2325 if (mon_fdset_fd
->opaque
) {
2326 fdsetfd_info
->value
->has_opaque
= true;
2327 fdsetfd_info
->value
->opaque
= g_strdup(mon_fdset_fd
->opaque
);
2329 fdsetfd_info
->value
->has_opaque
= false;
2332 fdsetfd_info
->next
= fdsetfd_list
;
2333 fdsetfd_list
= fdsetfd_info
;
2336 fdset_info
->value
->fds
= fdsetfd_list
;
2338 fdset_info
->next
= fdset_list
;
2339 fdset_list
= fdset_info
;
2345 AddfdInfo
*monitor_fdset_add_fd(int fd
, bool has_fdset_id
, int64_t fdset_id
,
2346 bool has_opaque
, const char *opaque
,
2349 MonFdset
*mon_fdset
= NULL
;
2350 MonFdsetFd
*mon_fdset_fd
;
2354 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2355 /* Break if match found or match impossible due to ordering by ID */
2356 if (fdset_id
<= mon_fdset
->id
) {
2357 if (fdset_id
< mon_fdset
->id
) {
2365 if (mon_fdset
== NULL
) {
2366 int64_t fdset_id_prev
= -1;
2367 MonFdset
*mon_fdset_cur
= QLIST_FIRST(&mon_fdsets
);
2371 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "fdset-id",
2372 "a non-negative value");
2375 /* Use specified fdset ID */
2376 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2377 mon_fdset_cur
= mon_fdset
;
2378 if (fdset_id
< mon_fdset_cur
->id
) {
2383 /* Use first available fdset ID */
2384 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2385 mon_fdset_cur
= mon_fdset
;
2386 if (fdset_id_prev
== mon_fdset_cur
->id
- 1) {
2387 fdset_id_prev
= mon_fdset_cur
->id
;
2394 mon_fdset
= g_malloc0(sizeof(*mon_fdset
));
2396 mon_fdset
->id
= fdset_id
;
2398 mon_fdset
->id
= fdset_id_prev
+ 1;
2401 /* The fdset list is ordered by fdset ID */
2402 if (!mon_fdset_cur
) {
2403 QLIST_INSERT_HEAD(&mon_fdsets
, mon_fdset
, next
);
2404 } else if (mon_fdset
->id
< mon_fdset_cur
->id
) {
2405 QLIST_INSERT_BEFORE(mon_fdset_cur
, mon_fdset
, next
);
2407 QLIST_INSERT_AFTER(mon_fdset_cur
, mon_fdset
, next
);
2411 mon_fdset_fd
= g_malloc0(sizeof(*mon_fdset_fd
));
2412 mon_fdset_fd
->fd
= fd
;
2413 mon_fdset_fd
->removed
= false;
2415 mon_fdset_fd
->opaque
= g_strdup(opaque
);
2417 QLIST_INSERT_HEAD(&mon_fdset
->fds
, mon_fdset_fd
, next
);
2419 fdinfo
= g_malloc0(sizeof(*fdinfo
));
2420 fdinfo
->fdset_id
= mon_fdset
->id
;
2421 fdinfo
->fd
= mon_fdset_fd
->fd
;
2426 int monitor_fdset_get_fd(int64_t fdset_id
, int flags
)
2429 MonFdset
*mon_fdset
;
2430 MonFdsetFd
*mon_fdset_fd
;
2433 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2434 if (mon_fdset
->id
!= fdset_id
) {
2437 QLIST_FOREACH(mon_fdset_fd
, &mon_fdset
->fds
, next
) {
2438 mon_fd_flags
= fcntl(mon_fdset_fd
->fd
, F_GETFL
);
2439 if (mon_fd_flags
== -1) {
2443 if ((flags
& O_ACCMODE
) == (mon_fd_flags
& O_ACCMODE
)) {
2444 return mon_fdset_fd
->fd
;
2456 int monitor_fdset_dup_fd_add(int64_t fdset_id
, int dup_fd
)
2458 MonFdset
*mon_fdset
;
2459 MonFdsetFd
*mon_fdset_fd_dup
;
2461 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2462 if (mon_fdset
->id
!= fdset_id
) {
2465 QLIST_FOREACH(mon_fdset_fd_dup
, &mon_fdset
->dup_fds
, next
) {
2466 if (mon_fdset_fd_dup
->fd
== dup_fd
) {
2470 mon_fdset_fd_dup
= g_malloc0(sizeof(*mon_fdset_fd_dup
));
2471 mon_fdset_fd_dup
->fd
= dup_fd
;
2472 QLIST_INSERT_HEAD(&mon_fdset
->dup_fds
, mon_fdset_fd_dup
, next
);
2478 static int monitor_fdset_dup_fd_find_remove(int dup_fd
, bool remove
)
2480 MonFdset
*mon_fdset
;
2481 MonFdsetFd
*mon_fdset_fd_dup
;
2483 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2484 QLIST_FOREACH(mon_fdset_fd_dup
, &mon_fdset
->dup_fds
, next
) {
2485 if (mon_fdset_fd_dup
->fd
== dup_fd
) {
2487 QLIST_REMOVE(mon_fdset_fd_dup
, next
);
2488 if (QLIST_EMPTY(&mon_fdset
->dup_fds
)) {
2489 monitor_fdset_cleanup(mon_fdset
);
2493 return mon_fdset
->id
;
2501 int monitor_fdset_dup_fd_find(int dup_fd
)
2503 return monitor_fdset_dup_fd_find_remove(dup_fd
, false);
2506 void monitor_fdset_dup_fd_remove(int dup_fd
)
2508 monitor_fdset_dup_fd_find_remove(dup_fd
, true);
2511 int monitor_fd_param(Monitor
*mon
, const char *fdname
, Error
**errp
)
2514 Error
*local_err
= NULL
;
2516 if (!qemu_isdigit(fdname
[0]) && mon
) {
2517 fd
= monitor_get_fd(mon
, fdname
, &local_err
);
2519 fd
= qemu_parse_fd(fdname
);
2521 error_setg(&local_err
, "Invalid file descriptor number '%s'",
2526 error_propagate(errp
, local_err
);
2535 /* Please update hmp-commands.hx when adding or changing commands */
2536 static mon_cmd_t info_cmds
[] = {
2537 #include "hmp-commands-info.h"
2541 /* mon_cmds and info_cmds would be sorted at runtime */
2542 static mon_cmd_t mon_cmds
[] = {
2543 #include "hmp-commands.h"
2547 /*******************************************************************/
2549 static const char *pch
;
2550 static sigjmp_buf expr_env
;
2553 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2554 expr_error(Monitor
*mon
, const char *fmt
, ...)
2558 monitor_vprintf(mon
, fmt
, ap
);
2559 monitor_printf(mon
, "\n");
2561 siglongjmp(expr_env
, 1);
2564 /* return 0 if OK, -1 if not found */
2565 static int get_monitor_def(target_long
*pval
, const char *name
)
2567 const MonitorDef
*md
= target_monitor_defs();
2568 CPUState
*cs
= mon_get_cpu();
2573 if (cs
== NULL
|| md
== NULL
) {
2577 for(; md
->name
!= NULL
; md
++) {
2578 if (compare_cmd(name
, md
->name
)) {
2579 if (md
->get_value
) {
2580 *pval
= md
->get_value(md
, md
->offset
);
2582 CPUArchState
*env
= mon_get_cpu_env();
2583 ptr
= (uint8_t *)env
+ md
->offset
;
2586 *pval
= *(int32_t *)ptr
;
2589 *pval
= *(target_long
*)ptr
;
2600 ret
= target_get_monitor_def(cs
, name
, &tmp
);
2602 *pval
= (target_long
) tmp
;
2608 static void next(void)
2612 while (qemu_isspace(*pch
))
2617 static int64_t expr_sum(Monitor
*mon
);
2619 static int64_t expr_unary(Monitor
*mon
)
2628 n
= expr_unary(mon
);
2632 n
= -expr_unary(mon
);
2636 n
= ~expr_unary(mon
);
2642 expr_error(mon
, "')' expected");
2649 expr_error(mon
, "character constant expected");
2653 expr_error(mon
, "missing terminating \' character");
2663 while ((*pch
>= 'a' && *pch
<= 'z') ||
2664 (*pch
>= 'A' && *pch
<= 'Z') ||
2665 (*pch
>= '0' && *pch
<= '9') ||
2666 *pch
== '_' || *pch
== '.') {
2667 if ((q
- buf
) < sizeof(buf
) - 1)
2671 while (qemu_isspace(*pch
))
2674 ret
= get_monitor_def(®
, buf
);
2676 expr_error(mon
, "unknown register");
2681 expr_error(mon
, "unexpected end of expression");
2686 n
= strtoull(pch
, &p
, 0);
2687 if (errno
== ERANGE
) {
2688 expr_error(mon
, "number too large");
2691 expr_error(mon
, "invalid char '%c' in expression", *p
);
2694 while (qemu_isspace(*pch
))
2702 static int64_t expr_prod(Monitor
*mon
)
2707 val
= expr_unary(mon
);
2710 if (op
!= '*' && op
!= '/' && op
!= '%')
2713 val2
= expr_unary(mon
);
2722 expr_error(mon
, "division by zero");
2733 static int64_t expr_logic(Monitor
*mon
)
2738 val
= expr_prod(mon
);
2741 if (op
!= '&' && op
!= '|' && op
!= '^')
2744 val2
= expr_prod(mon
);
2761 static int64_t expr_sum(Monitor
*mon
)
2766 val
= expr_logic(mon
);
2769 if (op
!= '+' && op
!= '-')
2772 val2
= expr_logic(mon
);
2781 static int get_expr(Monitor
*mon
, int64_t *pval
, const char **pp
)
2784 if (sigsetjmp(expr_env
, 0)) {
2788 while (qemu_isspace(*pch
))
2790 *pval
= expr_sum(mon
);
2795 static int get_double(Monitor
*mon
, double *pval
, const char **pp
)
2797 const char *p
= *pp
;
2801 d
= strtod(p
, &tailp
);
2803 monitor_printf(mon
, "Number expected\n");
2806 if (d
!= d
|| d
- d
!= 0) {
2807 /* NaN or infinity */
2808 monitor_printf(mon
, "Bad number\n");
2817 * Store the command-name in cmdname, and return a pointer to
2818 * the remaining of the command string.
2820 static const char *get_command_name(const char *cmdline
,
2821 char *cmdname
, size_t nlen
)
2824 const char *p
, *pstart
;
2827 while (qemu_isspace(*p
))
2832 while (*p
!= '\0' && *p
!= '/' && !qemu_isspace(*p
))
2837 memcpy(cmdname
, pstart
, len
);
2838 cmdname
[len
] = '\0';
2843 * Read key of 'type' into 'key' and return the current
2846 static char *key_get_info(const char *type
, char **key
)
2854 p
= strchr(type
, ':');
2861 str
= g_malloc(len
+ 1);
2862 memcpy(str
, type
, len
);
2869 static int default_fmt_format
= 'x';
2870 static int default_fmt_size
= 4;
2872 static int is_valid_option(const char *c
, const char *typestr
)
2880 typestr
= strstr(typestr
, option
);
2881 return (typestr
!= NULL
);
2884 static const mon_cmd_t
*search_dispatch_table(const mon_cmd_t
*disp_table
,
2885 const char *cmdname
)
2887 const mon_cmd_t
*cmd
;
2889 for (cmd
= disp_table
; cmd
->name
!= NULL
; cmd
++) {
2890 if (compare_cmd(cmdname
, cmd
->name
)) {
2899 * Parse command name from @cmdp according to command table @table.
2900 * If blank, return NULL.
2901 * Else, if no valid command can be found, report to @mon, and return
2903 * Else, change @cmdp to point right behind the name, and return its
2904 * command table entry.
2905 * Do not assume the return value points into @table! It doesn't when
2906 * the command is found in a sub-command table.
2908 static const mon_cmd_t
*monitor_parse_command(Monitor
*mon
,
2909 const char *cmdp_start
,
2914 const mon_cmd_t
*cmd
;
2917 /* extract the command name */
2918 p
= get_command_name(*cmdp
, cmdname
, sizeof(cmdname
));
2922 cmd
= search_dispatch_table(table
, cmdname
);
2924 monitor_printf(mon
, "unknown command: '%.*s'\n",
2925 (int)(p
- cmdp_start
), cmdp_start
);
2929 /* filter out following useless space */
2930 while (qemu_isspace(*p
)) {
2935 /* search sub command */
2936 if (cmd
->sub_table
!= NULL
&& *p
!= '\0') {
2937 return monitor_parse_command(mon
, cmdp_start
, cmdp
, cmd
->sub_table
);
2944 * Parse arguments for @cmd.
2945 * If it can't be parsed, report to @mon, and return NULL.
2946 * Else, insert command arguments into a QDict, and return it.
2947 * Note: On success, caller has to free the QDict structure.
2950 static QDict
*monitor_parse_arguments(Monitor
*mon
,
2952 const mon_cmd_t
*cmd
)
2954 const char *typestr
;
2957 const char *p
= *endp
;
2959 QDict
*qdict
= qdict_new();
2961 /* parse the parameters */
2962 typestr
= cmd
->args_type
;
2964 typestr
= key_get_info(typestr
, &key
);
2976 while (qemu_isspace(*p
))
2978 if (*typestr
== '?') {
2981 /* no optional string: NULL argument */
2985 ret
= get_str(buf
, sizeof(buf
), &p
);
2989 monitor_printf(mon
, "%s: filename expected\n",
2993 monitor_printf(mon
, "%s: block device name expected\n",
2997 monitor_printf(mon
, "%s: string expected\n", cmd
->name
);
3002 qdict_put_str(qdict
, key
, buf
);
3007 QemuOptsList
*opts_list
;
3010 opts_list
= qemu_find_opts(key
);
3011 if (!opts_list
|| opts_list
->desc
->name
) {
3014 while (qemu_isspace(*p
)) {
3019 if (get_str(buf
, sizeof(buf
), &p
) < 0) {
3022 opts
= qemu_opts_parse_noisily(opts_list
, buf
, true);
3026 qemu_opts_to_qdict(opts
, qdict
);
3027 qemu_opts_del(opts
);
3032 int count
, format
, size
;
3034 while (qemu_isspace(*p
))
3040 if (qemu_isdigit(*p
)) {
3042 while (qemu_isdigit(*p
)) {
3043 count
= count
* 10 + (*p
- '0');
3081 if (*p
!= '\0' && !qemu_isspace(*p
)) {
3082 monitor_printf(mon
, "invalid char in format: '%c'\n",
3087 format
= default_fmt_format
;
3088 if (format
!= 'i') {
3089 /* for 'i', not specifying a size gives -1 as size */
3091 size
= default_fmt_size
;
3092 default_fmt_size
= size
;
3094 default_fmt_format
= format
;
3097 format
= default_fmt_format
;
3098 if (format
!= 'i') {
3099 size
= default_fmt_size
;
3104 qdict_put_int(qdict
, "count", count
);
3105 qdict_put_int(qdict
, "format", format
);
3106 qdict_put_int(qdict
, "size", size
);
3115 while (qemu_isspace(*p
))
3117 if (*typestr
== '?' || *typestr
== '.') {
3118 if (*typestr
== '?') {
3126 while (qemu_isspace(*p
))
3135 if (get_expr(mon
, &val
, &p
))
3137 /* Check if 'i' is greater than 32-bit */
3138 if ((c
== 'i') && ((val
>> 32) & 0xffffffff)) {
3139 monitor_printf(mon
, "\'%s\' has failed: ", cmd
->name
);
3140 monitor_printf(mon
, "integer is for 32-bit values\n");
3142 } else if (c
== 'M') {
3144 monitor_printf(mon
, "enter a positive value\n");
3149 qdict_put_int(qdict
, key
, val
);
3158 while (qemu_isspace(*p
)) {
3161 if (*typestr
== '?') {
3167 ret
= qemu_strtosz_MiB(p
, &end
, &val
);
3168 if (ret
< 0 || val
> INT64_MAX
) {
3169 monitor_printf(mon
, "invalid size\n");
3172 qdict_put_int(qdict
, key
, val
);
3180 while (qemu_isspace(*p
))
3182 if (*typestr
== '?') {
3188 if (get_double(mon
, &val
, &p
) < 0) {
3191 if (p
[0] && p
[1] == 's') {
3194 val
/= 1e3
; p
+= 2; break;
3196 val
/= 1e6
; p
+= 2; break;
3198 val
/= 1e9
; p
+= 2; break;
3201 if (*p
&& !qemu_isspace(*p
)) {
3202 monitor_printf(mon
, "Unknown unit suffix\n");
3205 qdict_put(qdict
, key
, qnum_from_double(val
));
3213 while (qemu_isspace(*p
)) {
3217 while (qemu_isgraph(*p
)) {
3220 if (p
- beg
== 2 && !memcmp(beg
, "on", p
- beg
)) {
3222 } else if (p
- beg
== 3 && !memcmp(beg
, "off", p
- beg
)) {
3225 monitor_printf(mon
, "Expected 'on' or 'off'\n");
3228 qdict_put_bool(qdict
, key
, val
);
3233 const char *tmp
= p
;
3240 while (qemu_isspace(*p
))
3245 if(!is_valid_option(p
, typestr
)) {
3247 monitor_printf(mon
, "%s: unsupported option -%c\n",
3259 qdict_put_bool(qdict
, key
, true);
3266 /* package all remaining string */
3269 while (qemu_isspace(*p
)) {
3272 if (*typestr
== '?') {
3275 /* no remaining string: NULL argument */
3281 monitor_printf(mon
, "%s: string expected\n",
3285 qdict_put_str(qdict
, key
, p
);
3291 monitor_printf(mon
, "%s: unknown type '%c'\n", cmd
->name
, c
);
3297 /* check that all arguments were parsed */
3298 while (qemu_isspace(*p
))
3301 monitor_printf(mon
, "%s: extraneous characters at the end of line\n",
3314 static void handle_hmp_command(Monitor
*mon
, const char *cmdline
)
3317 const mon_cmd_t
*cmd
;
3319 trace_handle_hmp_command(mon
, cmdline
);
3321 cmd
= monitor_parse_command(mon
, cmdline
, &cmdline
, mon
->cmd_table
);
3326 qdict
= monitor_parse_arguments(mon
, &cmdline
, cmd
);
3328 monitor_printf(mon
, "Try \"help %s\" for more information\n",
3333 cmd
->cmd(mon
, qdict
);
3337 static void cmd_completion(Monitor
*mon
, const char *name
, const char *list
)
3339 const char *p
, *pstart
;
3348 p
= pstart
+ strlen(pstart
);
3350 if (len
> sizeof(cmd
) - 2)
3351 len
= sizeof(cmd
) - 2;
3352 memcpy(cmd
, pstart
, len
);
3354 if (name
[0] == '\0' || !strncmp(name
, cmd
, strlen(name
))) {
3355 readline_add_completion(mon
->rs
, cmd
);
3363 static void file_completion(Monitor
*mon
, const char *input
)
3368 char file
[1024], file_prefix
[1024];
3372 p
= strrchr(input
, '/');
3375 pstrcpy(file_prefix
, sizeof(file_prefix
), input
);
3376 pstrcpy(path
, sizeof(path
), ".");
3378 input_path_len
= p
- input
+ 1;
3379 memcpy(path
, input
, input_path_len
);
3380 if (input_path_len
> sizeof(path
) - 1)
3381 input_path_len
= sizeof(path
) - 1;
3382 path
[input_path_len
] = '\0';
3383 pstrcpy(file_prefix
, sizeof(file_prefix
), p
+ 1);
3386 ffs
= opendir(path
);
3395 if (strcmp(d
->d_name
, ".") == 0 || strcmp(d
->d_name
, "..") == 0) {
3399 if (strstart(d
->d_name
, file_prefix
, NULL
)) {
3400 memcpy(file
, input
, input_path_len
);
3401 if (input_path_len
< sizeof(file
))
3402 pstrcpy(file
+ input_path_len
, sizeof(file
) - input_path_len
,
3404 /* stat the file to find out if it's a directory.
3405 * In that case add a slash to speed up typing long paths
3407 if (stat(file
, &sb
) == 0 && S_ISDIR(sb
.st_mode
)) {
3408 pstrcat(file
, sizeof(file
), "/");
3410 readline_add_completion(mon
->rs
, file
);
3416 static const char *next_arg_type(const char *typestr
)
3418 const char *p
= strchr(typestr
, ':');
3419 return (p
!= NULL
? ++p
: typestr
);
3422 static void add_completion_option(ReadLineState
*rs
, const char *str
,
3425 if (!str
|| !option
) {
3428 if (!strncmp(option
, str
, strlen(str
))) {
3429 readline_add_completion(rs
, option
);
3433 void chardev_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3436 ChardevBackendInfoList
*list
, *start
;
3442 readline_set_completion_index(rs
, len
);
3444 start
= list
= qmp_query_chardev_backends(NULL
);
3446 const char *chr_name
= list
->value
->name
;
3448 if (!strncmp(chr_name
, str
, len
)) {
3449 readline_add_completion(rs
, chr_name
);
3453 qapi_free_ChardevBackendInfoList(start
);
3456 void netdev_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3465 readline_set_completion_index(rs
, len
);
3466 for (i
= 0; i
< NET_CLIENT_DRIVER__MAX
; i
++) {
3467 add_completion_option(rs
, str
, NetClientDriver_str(i
));
3471 void device_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3481 readline_set_completion_index(rs
, len
);
3482 list
= elt
= object_class_get_list(TYPE_DEVICE
, false);
3485 DeviceClass
*dc
= OBJECT_CLASS_CHECK(DeviceClass
, elt
->data
,
3487 name
= object_class_get_name(OBJECT_CLASS(dc
));
3489 if (dc
->user_creatable
3490 && !strncmp(name
, str
, len
)) {
3491 readline_add_completion(rs
, name
);
3498 void object_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3508 readline_set_completion_index(rs
, len
);
3509 list
= elt
= object_class_get_list(TYPE_USER_CREATABLE
, false);
3513 name
= object_class_get_name(OBJECT_CLASS(elt
->data
));
3514 if (!strncmp(name
, str
, len
) && strcmp(name
, TYPE_USER_CREATABLE
)) {
3515 readline_add_completion(rs
, name
);
3522 static void peripheral_device_del_completion(ReadLineState
*rs
,
3523 const char *str
, size_t len
)
3525 Object
*peripheral
= container_get(qdev_get_machine(), "/peripheral");
3526 GSList
*list
, *item
;
3528 list
= qdev_build_hotpluggable_device_list(peripheral
);
3533 for (item
= list
; item
; item
= g_slist_next(item
)) {
3534 DeviceState
*dev
= item
->data
;
3536 if (dev
->id
&& !strncmp(str
, dev
->id
, len
)) {
3537 readline_add_completion(rs
, dev
->id
);
3544 void chardev_remove_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3547 ChardevInfoList
*list
, *start
;
3553 readline_set_completion_index(rs
, len
);
3555 start
= list
= qmp_query_chardev(NULL
);
3557 ChardevInfo
*chr
= list
->value
;
3559 if (!strncmp(chr
->label
, str
, len
)) {
3560 readline_add_completion(rs
, chr
->label
);
3564 qapi_free_ChardevInfoList(start
);
3567 static void ringbuf_completion(ReadLineState
*rs
, const char *str
)
3570 ChardevInfoList
*list
, *start
;
3573 readline_set_completion_index(rs
, len
);
3575 start
= list
= qmp_query_chardev(NULL
);
3577 ChardevInfo
*chr_info
= list
->value
;
3579 if (!strncmp(chr_info
->label
, str
, len
)) {
3580 Chardev
*chr
= qemu_chr_find(chr_info
->label
);
3581 if (chr
&& CHARDEV_IS_RINGBUF(chr
)) {
3582 readline_add_completion(rs
, chr_info
->label
);
3587 qapi_free_ChardevInfoList(start
);
3590 void ringbuf_write_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3595 ringbuf_completion(rs
, str
);
3598 void device_del_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3607 readline_set_completion_index(rs
, len
);
3608 peripheral_device_del_completion(rs
, str
, len
);
3611 void object_del_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3613 ObjectPropertyInfoList
*list
, *start
;
3620 readline_set_completion_index(rs
, len
);
3622 start
= list
= qmp_qom_list("/objects", NULL
);
3624 ObjectPropertyInfo
*info
= list
->value
;
3626 if (!strncmp(info
->type
, "child<", 5)
3627 && !strncmp(info
->name
, str
, len
)) {
3628 readline_add_completion(rs
, info
->name
);
3632 qapi_free_ObjectPropertyInfoList(start
);
3635 void sendkey_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3644 sep
= strrchr(str
, '-');
3649 readline_set_completion_index(rs
, len
);
3650 for (i
= 0; i
< Q_KEY_CODE__MAX
; i
++) {
3651 if (!strncmp(str
, QKeyCode_str(i
), len
)) {
3652 readline_add_completion(rs
, QKeyCode_str(i
));
3657 void set_link_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3662 readline_set_completion_index(rs
, len
);
3664 NetClientState
*ncs
[MAX_QUEUE_NUM
];
3666 count
= qemu_find_net_clients_except(NULL
, ncs
,
3667 NET_CLIENT_DRIVER_NONE
,
3669 for (i
= 0; i
< MIN(count
, MAX_QUEUE_NUM
); i
++) {
3670 const char *name
= ncs
[i
]->name
;
3671 if (!strncmp(str
, name
, len
)) {
3672 readline_add_completion(rs
, name
);
3675 } else if (nb_args
== 3) {
3676 add_completion_option(rs
, str
, "on");
3677 add_completion_option(rs
, str
, "off");
3681 void netdev_del_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3684 NetClientState
*ncs
[MAX_QUEUE_NUM
];
3691 readline_set_completion_index(rs
, len
);
3692 count
= qemu_find_net_clients_except(NULL
, ncs
, NET_CLIENT_DRIVER_NIC
,
3694 for (i
= 0; i
< MIN(count
, MAX_QUEUE_NUM
); i
++) {
3696 const char *name
= ncs
[i
]->name
;
3697 if (strncmp(str
, name
, len
)) {
3700 opts
= qemu_opts_find(qemu_find_opts_err("netdev", NULL
), name
);
3702 readline_add_completion(rs
, name
);
3707 void info_trace_events_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3712 readline_set_completion_index(rs
, len
);
3714 TraceEventIter iter
;
3716 char *pattern
= g_strdup_printf("%s*", str
);
3717 trace_event_iter_init(&iter
, pattern
);
3718 while ((ev
= trace_event_iter_next(&iter
)) != NULL
) {
3719 readline_add_completion(rs
, trace_event_get_name(ev
));
3725 void trace_event_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3730 readline_set_completion_index(rs
, len
);
3732 TraceEventIter iter
;
3734 char *pattern
= g_strdup_printf("%s*", str
);
3735 trace_event_iter_init(&iter
, pattern
);
3736 while ((ev
= trace_event_iter_next(&iter
)) != NULL
) {
3737 readline_add_completion(rs
, trace_event_get_name(ev
));
3740 } else if (nb_args
== 3) {
3741 add_completion_option(rs
, str
, "on");
3742 add_completion_option(rs
, str
, "off");
3746 void watchdog_action_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3753 readline_set_completion_index(rs
, strlen(str
));
3754 for (i
= 0; i
< WATCHDOG_ACTION__MAX
; i
++) {
3755 add_completion_option(rs
, str
, WatchdogAction_str(i
));
3759 void migrate_set_capability_completion(ReadLineState
*rs
, int nb_args
,
3765 readline_set_completion_index(rs
, len
);
3768 for (i
= 0; i
< MIGRATION_CAPABILITY__MAX
; i
++) {
3769 const char *name
= MigrationCapability_str(i
);
3770 if (!strncmp(str
, name
, len
)) {
3771 readline_add_completion(rs
, name
);
3774 } else if (nb_args
== 3) {
3775 add_completion_option(rs
, str
, "on");
3776 add_completion_option(rs
, str
, "off");
3780 void migrate_set_parameter_completion(ReadLineState
*rs
, int nb_args
,
3786 readline_set_completion_index(rs
, len
);
3789 for (i
= 0; i
< MIGRATION_PARAMETER__MAX
; i
++) {
3790 const char *name
= MigrationParameter_str(i
);
3791 if (!strncmp(str
, name
, len
)) {
3792 readline_add_completion(rs
, name
);
3798 static void vm_completion(ReadLineState
*rs
, const char *str
)
3801 BlockDriverState
*bs
;
3802 BdrvNextIterator it
;
3805 readline_set_completion_index(rs
, len
);
3807 for (bs
= bdrv_first(&it
); bs
; bs
= bdrv_next(&it
)) {
3808 SnapshotInfoList
*snapshots
, *snapshot
;
3809 AioContext
*ctx
= bdrv_get_aio_context(bs
);
3812 aio_context_acquire(ctx
);
3813 if (bdrv_can_snapshot(bs
)) {
3814 ok
= bdrv_query_snapshot_info_list(bs
, &snapshots
, NULL
) == 0;
3816 aio_context_release(ctx
);
3821 snapshot
= snapshots
;
3823 char *completion
= snapshot
->value
->name
;
3824 if (!strncmp(str
, completion
, len
)) {
3825 readline_add_completion(rs
, completion
);
3827 completion
= snapshot
->value
->id
;
3828 if (!strncmp(str
, completion
, len
)) {
3829 readline_add_completion(rs
, completion
);
3831 snapshot
= snapshot
->next
;
3833 qapi_free_SnapshotInfoList(snapshots
);
3838 void delvm_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3841 vm_completion(rs
, str
);
3845 void loadvm_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3848 vm_completion(rs
, str
);
3852 static void monitor_find_completion_by_table(Monitor
*mon
,
3853 const mon_cmd_t
*cmd_table
,
3857 const char *cmdname
;
3859 const char *ptype
, *old_ptype
, *str
, *name
;
3860 const mon_cmd_t
*cmd
;
3861 BlockBackend
*blk
= NULL
;
3864 /* command completion */
3869 readline_set_completion_index(mon
->rs
, strlen(cmdname
));
3870 for (cmd
= cmd_table
; cmd
->name
!= NULL
; cmd
++) {
3871 cmd_completion(mon
, cmdname
, cmd
->name
);
3874 /* find the command */
3875 for (cmd
= cmd_table
; cmd
->name
!= NULL
; cmd
++) {
3876 if (compare_cmd(args
[0], cmd
->name
)) {
3884 if (cmd
->sub_table
) {
3885 /* do the job again */
3886 monitor_find_completion_by_table(mon
, cmd
->sub_table
,
3887 &args
[1], nb_args
- 1);
3890 if (cmd
->command_completion
) {
3891 cmd
->command_completion(mon
->rs
, nb_args
, args
[nb_args
- 1]);
3895 ptype
= next_arg_type(cmd
->args_type
);
3896 for(i
= 0; i
< nb_args
- 2; i
++) {
3897 if (*ptype
!= '\0') {
3898 ptype
= next_arg_type(ptype
);
3899 while (*ptype
== '?')
3900 ptype
= next_arg_type(ptype
);
3903 str
= args
[nb_args
- 1];
3905 while (*ptype
== '-' && old_ptype
!= ptype
) {
3907 ptype
= next_arg_type(ptype
);
3911 /* file completion */
3912 readline_set_completion_index(mon
->rs
, strlen(str
));
3913 file_completion(mon
, str
);
3916 /* block device name completion */
3917 readline_set_completion_index(mon
->rs
, strlen(str
));
3918 while ((blk
= blk_next(blk
)) != NULL
) {
3919 name
= blk_name(blk
);
3920 if (str
[0] == '\0' ||
3921 !strncmp(name
, str
, strlen(str
))) {
3922 readline_add_completion(mon
->rs
, name
);
3928 if (!strcmp(cmd
->name
, "help|?")) {
3929 monitor_find_completion_by_table(mon
, cmd_table
,
3930 &args
[1], nb_args
- 1);
3939 static void monitor_find_completion(void *opaque
,
3940 const char *cmdline
)
3942 Monitor
*mon
= opaque
;
3943 char *args
[MAX_ARGS
];
3946 /* 1. parse the cmdline */
3947 if (parse_cmdline(cmdline
, &nb_args
, args
) < 0) {
3951 /* if the line ends with a space, it means we want to complete the
3953 len
= strlen(cmdline
);
3954 if (len
> 0 && qemu_isspace(cmdline
[len
- 1])) {
3955 if (nb_args
>= MAX_ARGS
) {
3958 args
[nb_args
++] = g_strdup("");
3961 /* 2. auto complete according to args */
3962 monitor_find_completion_by_table(mon
, mon
->cmd_table
, args
, nb_args
);
3965 free_cmdline_args(args
, nb_args
);
3968 static int monitor_can_read(void *opaque
)
3970 Monitor
*mon
= opaque
;
3972 return !atomic_mb_read(&mon
->suspend_cnt
);
3976 * 1. This function takes ownership of rsp, err, and id.
3977 * 2. rsp, err, and id may be NULL.
3978 * 3. If err != NULL then rsp must be NULL.
3980 static void monitor_qmp_respond(Monitor
*mon
, QObject
*rsp
,
3981 Error
*err
, QObject
*id
)
3983 QDict
*qdict
= NULL
;
3987 qdict
= qdict_new();
3988 qdict_put_obj(qdict
, "error", qmp_build_error_object(err
));
3990 rsp
= QOBJECT(qdict
);
3995 /* This is for the qdict below. */
3997 qdict_put_obj(qobject_to(QDict
, rsp
), "id", id
);
4000 monitor_json_emitter(mon
, rsp
);
4004 qobject_decref(rsp
);
4008 /* Owner of the request */
4010 /* "id" field of the request */
4012 /* Request object to be handled */
4015 * Whether we need to resume the monitor afterward. This flag is
4016 * used to emulate the old QMP server behavior that the current
4017 * command must be completed before execution of the next one.
4021 typedef struct QMPRequest QMPRequest
;
4024 * Dispatch one single QMP request. The function will free the req_obj
4025 * and objects inside it before return.
4027 static void monitor_qmp_dispatch_one(QMPRequest
*req_obj
)
4029 Monitor
*mon
, *old_mon
;
4030 QObject
*req
, *rsp
= NULL
, *id
;
4031 QDict
*qdict
= NULL
;
4037 need_resume
= req_obj
->need_resume
;
4041 if (trace_event_get_state_backends(TRACE_HANDLE_QMP_COMMAND
)) {
4042 QString
*req_json
= qobject_to_json(req
);
4043 trace_handle_qmp_command(mon
, qstring_get_str(req_json
));
4050 rsp
= qmp_dispatch(mon
->qmp
.commands
, req
);
4054 if (mon
->qmp
.commands
== &qmp_cap_negotiation_commands
) {
4055 qdict
= qdict_get_qdict(qobject_to(QDict
, rsp
), "error");
4057 && !g_strcmp0(qdict_get_try_str(qdict
, "class"),
4058 QapiErrorClass_str(ERROR_CLASS_COMMAND_NOT_FOUND
))) {
4059 /* Provide a more useful error message */
4060 qdict_del(qdict
, "desc");
4061 qdict_put_str(qdict
, "desc", "Expecting capabilities negotiation"
4062 " with 'qmp_capabilities'");
4066 /* Respond if necessary */
4067 monitor_qmp_respond(mon
, rsp
, NULL
, id
);
4069 /* This pairs with the monitor_suspend() in handle_qmp_command(). */
4071 monitor_resume(mon
);
4074 qobject_decref(req
);
4078 * Pop one QMP request from monitor queues, return NULL if not found.
4079 * We are using round-robin fashion to pop the request, to avoid
4080 * processing commands only on a very busy monitor. To achieve that,
4081 * when we process one request on a specific monitor, we put that
4082 * monitor to the end of mon_list queue.
4084 static QMPRequest
*monitor_qmp_requests_pop_one(void)
4086 QMPRequest
*req_obj
= NULL
;
4089 qemu_mutex_lock(&monitor_lock
);
4091 QTAILQ_FOREACH(mon
, &mon_list
, entry
) {
4092 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
4093 req_obj
= g_queue_pop_head(mon
->qmp
.qmp_requests
);
4094 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
4102 * We found one request on the monitor. Degrade this monitor's
4103 * priority to lowest by re-inserting it to end of queue.
4105 QTAILQ_REMOVE(&mon_list
, mon
, entry
);
4106 QTAILQ_INSERT_TAIL(&mon_list
, mon
, entry
);
4109 qemu_mutex_unlock(&monitor_lock
);
4114 static void monitor_qmp_bh_dispatcher(void *data
)
4116 QMPRequest
*req_obj
= monitor_qmp_requests_pop_one();
4119 trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj
->id
) ?: "");
4120 monitor_qmp_dispatch_one(req_obj
);
4121 /* Reschedule instead of looping so the main loop stays responsive */
4122 qemu_bh_schedule(mon_global
.qmp_dispatcher_bh
);
4126 #define QMP_REQ_QUEUE_LEN_MAX (8)
4128 static void handle_qmp_command(JSONMessageParser
*parser
, GQueue
*tokens
)
4130 QObject
*req
, *id
= NULL
;
4131 QDict
*qdict
= NULL
;
4132 MonitorQMP
*mon_qmp
= container_of(parser
, MonitorQMP
, parser
);
4133 Monitor
*mon
= container_of(mon_qmp
, Monitor
, qmp
);
4135 QMPRequest
*req_obj
;
4137 req
= json_parser_parse_err(tokens
, NULL
, &err
);
4139 /* json_parser_parse_err() sucks: can fail without setting @err */
4140 error_setg(&err
, QERR_JSON_PARSING
);
4146 /* Check against the request in general layout */
4147 qdict
= qmp_dispatch_check_obj(req
, &err
);
4152 /* Check against OOB specific */
4153 if (!qmp_cmd_oob_check(mon
, qdict
, &err
)) {
4157 id
= qdict_get(qdict
, "id");
4159 /* When OOB is enabled, the "id" field is mandatory. */
4160 if (qmp_oob_enabled(mon
) && !id
) {
4161 error_setg(&err
, "Out-Of-Band capability requires that "
4162 "every command contains an 'id' field");
4167 qdict_del(qdict
, "id");
4169 req_obj
= g_new0(QMPRequest
, 1);
4173 req_obj
->need_resume
= false;
4175 if (qmp_is_oob(qdict
)) {
4176 /* Out-Of-Band (OOB) requests are executed directly in parser. */
4177 trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(req_obj
->id
)
4179 monitor_qmp_dispatch_one(req_obj
);
4183 /* Protect qmp_requests and fetching its length. */
4184 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
4187 * If OOB is not enabled on the current monitor, we'll emulate the
4188 * old behavior that we won't process the current monitor any more
4189 * until it has responded. This helps make sure that as long as
4190 * OOB is not enabled, the server will never drop any command.
4192 if (!qmp_oob_enabled(mon
)) {
4193 monitor_suspend(mon
);
4194 req_obj
->need_resume
= true;
4196 /* Drop the request if queue is full. */
4197 if (mon
->qmp
.qmp_requests
->length
>= QMP_REQ_QUEUE_LEN_MAX
) {
4198 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
4199 qapi_event_send_command_dropped(id
,
4200 COMMAND_DROP_REASON_QUEUE_FULL
,
4203 qobject_decref(req
);
4210 * Put the request to the end of queue so that requests will be
4211 * handled in time order. Ownership for req_obj, req, id,
4212 * etc. will be delivered to the handler side.
4214 g_queue_push_tail(mon
->qmp
.qmp_requests
, req_obj
);
4215 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
4217 /* Kick the dispatcher routine */
4218 qemu_bh_schedule(mon_global
.qmp_dispatcher_bh
);
4222 monitor_qmp_respond(mon
, NULL
, err
, NULL
);
4223 qobject_decref(req
);
4226 static void monitor_qmp_read(void *opaque
, const uint8_t *buf
, int size
)
4228 Monitor
*mon
= opaque
;
4230 json_message_parser_feed(&mon
->qmp
.parser
, (const char *) buf
, size
);
4233 static void monitor_read(void *opaque
, const uint8_t *buf
, int size
)
4235 Monitor
*old_mon
= cur_mon
;
4241 for (i
= 0; i
< size
; i
++)
4242 readline_handle_byte(cur_mon
->rs
, buf
[i
]);
4244 if (size
== 0 || buf
[size
- 1] != 0)
4245 monitor_printf(cur_mon
, "corrupted command\n");
4247 handle_hmp_command(cur_mon
, (char *)buf
);
4253 static void monitor_command_cb(void *opaque
, const char *cmdline
,
4254 void *readline_opaque
)
4256 Monitor
*mon
= opaque
;
4258 monitor_suspend(mon
);
4259 handle_hmp_command(mon
, cmdline
);
4260 monitor_resume(mon
);
4263 int monitor_suspend(Monitor
*mon
)
4265 if (monitor_is_hmp_non_interactive(mon
)) {
4269 atomic_inc(&mon
->suspend_cnt
);
4271 if (monitor_is_qmp(mon
)) {
4273 * Kick iothread to make sure this takes effect. It'll be
4274 * evaluated again in prepare() of the watch object.
4276 aio_notify(iothread_get_aio_context(mon_global
.mon_iothread
));
4279 trace_monitor_suspend(mon
, 1);
4283 void monitor_resume(Monitor
*mon
)
4285 if (monitor_is_hmp_non_interactive(mon
)) {
4289 if (atomic_dec_fetch(&mon
->suspend_cnt
) == 0) {
4290 if (monitor_is_qmp(mon
)) {
4292 * For QMP monitors that are running in IOThread, let's
4293 * kick the thread in case it's sleeping.
4295 if (mon
->use_io_thr
) {
4296 aio_notify(iothread_get_aio_context(mon_global
.mon_iothread
));
4300 readline_show_prompt(mon
->rs
);
4303 trace_monitor_suspend(mon
, -1);
4306 static QObject
*get_qmp_greeting(Monitor
*mon
)
4308 QList
*cap_list
= qlist_new();
4309 QObject
*ver
= NULL
;
4312 qmp_marshal_query_version(NULL
, &ver
, NULL
);
4314 for (cap
= 0; cap
< QMP_CAPABILITY__MAX
; cap
++) {
4315 if (!mon
->use_io_thr
&& cap
== QMP_CAPABILITY_OOB
) {
4316 /* Monitors that are not using IOThread won't support OOB */
4319 qlist_append(cap_list
, qstring_from_str(QMPCapability_str(cap
)));
4322 return qobject_from_jsonf("{'QMP': {'version': %p, 'capabilities': %p}}",
4326 static void monitor_qmp_caps_reset(Monitor
*mon
)
4328 memset(mon
->qmp
.qmp_caps
, 0, sizeof(mon
->qmp
.qmp_caps
));
4331 static void monitor_qmp_event(void *opaque
, int event
)
4334 Monitor
*mon
= opaque
;
4337 case CHR_EVENT_OPENED
:
4338 mon
->qmp
.commands
= &qmp_cap_negotiation_commands
;
4339 monitor_qmp_caps_reset(mon
);
4340 data
= get_qmp_greeting(mon
);
4341 monitor_json_emitter(mon
, data
);
4342 qobject_decref(data
);
4345 case CHR_EVENT_CLOSED
:
4346 json_message_parser_destroy(&mon
->qmp
.parser
);
4347 json_message_parser_init(&mon
->qmp
.parser
, handle_qmp_command
);
4349 monitor_fdsets_cleanup();
4354 static void monitor_event(void *opaque
, int event
)
4356 Monitor
*mon
= opaque
;
4359 case CHR_EVENT_MUX_IN
:
4360 qemu_mutex_lock(&mon
->out_lock
);
4362 qemu_mutex_unlock(&mon
->out_lock
);
4363 if (mon
->reset_seen
) {
4364 readline_restart(mon
->rs
);
4365 monitor_resume(mon
);
4368 atomic_mb_set(&mon
->suspend_cnt
, 0);
4372 case CHR_EVENT_MUX_OUT
:
4373 if (mon
->reset_seen
) {
4374 if (atomic_mb_read(&mon
->suspend_cnt
) == 0) {
4375 monitor_printf(mon
, "\n");
4378 monitor_suspend(mon
);
4380 atomic_inc(&mon
->suspend_cnt
);
4382 qemu_mutex_lock(&mon
->out_lock
);
4384 qemu_mutex_unlock(&mon
->out_lock
);
4387 case CHR_EVENT_OPENED
:
4388 monitor_printf(mon
, "QEMU %s monitor - type 'help' for more "
4389 "information\n", QEMU_VERSION
);
4390 if (!mon
->mux_out
) {
4391 readline_restart(mon
->rs
);
4392 readline_show_prompt(mon
->rs
);
4394 mon
->reset_seen
= 1;
4398 case CHR_EVENT_CLOSED
:
4400 monitor_fdsets_cleanup();
4406 compare_mon_cmd(const void *a
, const void *b
)
4408 return strcmp(((const mon_cmd_t
*)a
)->name
,
4409 ((const mon_cmd_t
*)b
)->name
);
4412 static void sortcmdlist(void)
4415 int elem_size
= sizeof(mon_cmd_t
);
4417 array_num
= sizeof(mon_cmds
)/elem_size
-1;
4418 qsort((void *)mon_cmds
, array_num
, elem_size
, compare_mon_cmd
);
4420 array_num
= sizeof(info_cmds
)/elem_size
-1;
4421 qsort((void *)info_cmds
, array_num
, elem_size
, compare_mon_cmd
);
4424 static GMainContext
*monitor_get_io_context(void)
4426 return iothread_get_g_main_context(mon_global
.mon_iothread
);
4429 static AioContext
*monitor_get_aio_context(void)
4431 return iothread_get_aio_context(mon_global
.mon_iothread
);
4434 static void monitor_iothread_init(void)
4436 mon_global
.mon_iothread
= iothread_create("mon_iothread",
4440 * This MUST be on main loop thread since we have commands that
4441 * have assumption to be run on main loop thread. It would be
4442 * nice that one day we can remove this assumption in the future.
4444 mon_global
.qmp_dispatcher_bh
= aio_bh_new(qemu_get_aio_context(),
4445 monitor_qmp_bh_dispatcher
,
4449 * Unlike the dispatcher BH, this must be run on the monitor IO
4450 * thread, so that monitors that are using IO thread will make
4451 * sure read/write operations are all done on the IO thread.
4453 mon_global
.qmp_respond_bh
= aio_bh_new(monitor_get_aio_context(),
4454 monitor_qmp_bh_responder
,
4458 void monitor_init_globals(void)
4460 monitor_init_qmp_commands();
4461 monitor_qapi_event_init();
4463 qemu_mutex_init(&monitor_lock
);
4464 monitor_iothread_init();
4467 /* These functions just adapt the readline interface in a typesafe way. We
4468 * could cast function pointers but that discards compiler checks.
4470 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque
,
4471 const char *fmt
, ...)
4475 monitor_vprintf(opaque
, fmt
, ap
);
4479 static void monitor_readline_flush(void *opaque
)
4481 monitor_flush(opaque
);
4485 * Print to current monitor if we have one, else to stderr.
4486 * TODO should return int, so callers can calculate width, but that
4487 * requires surgery to monitor_vprintf(). Left for another day.
4489 void error_vprintf(const char *fmt
, va_list ap
)
4491 if (cur_mon
&& !monitor_cur_is_qmp()) {
4492 monitor_vprintf(cur_mon
, fmt
, ap
);
4494 vfprintf(stderr
, fmt
, ap
);
4498 void error_vprintf_unless_qmp(const char *fmt
, va_list ap
)
4500 if (cur_mon
&& !monitor_cur_is_qmp()) {
4501 monitor_vprintf(cur_mon
, fmt
, ap
);
4502 } else if (!cur_mon
) {
4503 vfprintf(stderr
, fmt
, ap
);
4507 static void monitor_list_append(Monitor
*mon
)
4509 qemu_mutex_lock(&monitor_lock
);
4510 QTAILQ_INSERT_HEAD(&mon_list
, mon
, entry
);
4511 qemu_mutex_unlock(&monitor_lock
);
4514 static void monitor_qmp_setup_handlers_bh(void *opaque
)
4516 Monitor
*mon
= opaque
;
4517 GMainContext
*context
;
4519 if (mon
->use_io_thr
) {
4521 * When use_io_thr is set, we use the global shared dedicated
4522 * IO thread for this monitor to handle input/output.
4524 context
= monitor_get_io_context();
4525 /* We should have inited globals before reaching here. */
4528 /* The default main loop, which is the main thread */
4532 qemu_chr_fe_set_handlers(&mon
->chr
, monitor_can_read
, monitor_qmp_read
,
4533 monitor_qmp_event
, NULL
, mon
, context
, true);
4534 monitor_list_append(mon
);
4537 void monitor_init(Chardev
*chr
, int flags
)
4539 Monitor
*mon
= g_malloc(sizeof(*mon
));
4540 /* Enable IOThread for QMPs that are not using MUX chardev backends. */
4541 bool use_io_thr
= (!CHARDEV_IS_MUX(chr
)) && (flags
& MONITOR_USE_CONTROL
);
4543 monitor_data_init(mon
, false, use_io_thr
);
4545 qemu_chr_fe_init(&mon
->chr
, chr
, &error_abort
);
4547 if (flags
& MONITOR_USE_READLINE
) {
4548 mon
->rs
= readline_init(monitor_readline_printf
,
4549 monitor_readline_flush
,
4551 monitor_find_completion
);
4552 monitor_read_command(mon
, 0);
4555 if (monitor_is_qmp(mon
)) {
4556 qemu_chr_fe_set_echo(&mon
->chr
, true);
4557 json_message_parser_init(&mon
->qmp
.parser
, handle_qmp_command
);
4558 if (mon
->use_io_thr
) {
4560 * Make sure the old iowatch is gone. It's possible when
4561 * e.g. the chardev is in client mode, with wait=on.
4563 remove_fd_in_watch(chr
);
4565 * We can't call qemu_chr_fe_set_handlers() directly here
4566 * since during the procedure the chardev will be active
4567 * and running in monitor iothread, while we'll still do
4568 * something before returning from it, which is a possible
4569 * race too. To avoid that, we just create a BH to setup
4572 aio_bh_schedule_oneshot(monitor_get_aio_context(),
4573 monitor_qmp_setup_handlers_bh
, mon
);
4574 /* We'll add this to mon_list in the BH when setup done */
4577 qemu_chr_fe_set_handlers(&mon
->chr
, monitor_can_read
,
4578 monitor_qmp_read
, monitor_qmp_event
,
4579 NULL
, mon
, NULL
, true);
4582 qemu_chr_fe_set_handlers(&mon
->chr
, monitor_can_read
, monitor_read
,
4583 monitor_event
, NULL
, mon
, NULL
, true);
4586 monitor_list_append(mon
);
4589 void monitor_cleanup(void)
4591 Monitor
*mon
, *next
;
4594 * We need to explicitly stop the iothread (but not destroy it),
4595 * cleanup the monitor resources, then destroy the iothread since
4596 * we need to unregister from chardev below in
4597 * monitor_data_destroy(), and chardev is not thread-safe yet
4599 iothread_stop(mon_global
.mon_iothread
);
4602 * After we have IOThread to send responses, it's possible that
4603 * when we stop the IOThread there are still replies queued in the
4604 * responder queue. Flush all of them. Note that even after this
4605 * flush it's still possible that out buffer is not flushed.
4606 * It'll be done in below monitor_flush() as the last resort.
4608 monitor_qmp_bh_responder(NULL
);
4610 qemu_mutex_lock(&monitor_lock
);
4611 QTAILQ_FOREACH_SAFE(mon
, &mon_list
, entry
, next
) {
4612 QTAILQ_REMOVE(&mon_list
, mon
, entry
);
4614 monitor_data_destroy(mon
);
4617 qemu_mutex_unlock(&monitor_lock
);
4619 /* QEMUBHs needs to be deleted before destroying the IOThread. */
4620 qemu_bh_delete(mon_global
.qmp_dispatcher_bh
);
4621 mon_global
.qmp_dispatcher_bh
= NULL
;
4622 qemu_bh_delete(mon_global
.qmp_respond_bh
);
4623 mon_global
.qmp_respond_bh
= NULL
;
4625 iothread_destroy(mon_global
.mon_iothread
);
4626 mon_global
.mon_iothread
= NULL
;
4629 QemuOptsList qemu_mon_opts
= {
4631 .implied_opt_name
= "chardev",
4632 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mon_opts
.head
),
4636 .type
= QEMU_OPT_STRING
,
4639 .type
= QEMU_OPT_STRING
,
4642 .type
= QEMU_OPT_BOOL
,
4644 { /* end of list */ }
4649 void qmp_rtc_reset_reinjection(Error
**errp
)
4651 error_setg(errp
, QERR_FEATURE_DISABLED
, "rtc-reset-reinjection");
4654 SevInfo
*qmp_query_sev(Error
**errp
)
4656 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-sev");
4660 SevLaunchMeasureInfo
*qmp_query_sev_launch_measure(Error
**errp
)
4662 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-sev-launch-measure");
4666 SevCapability
*qmp_query_sev_capabilities(Error
**errp
)
4668 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-sev-capabilities");
4673 #ifndef TARGET_S390X
4674 void qmp_dump_skeys(const char *filename
, Error
**errp
)
4676 error_setg(errp
, QERR_FEATURE_DISABLED
, "dump-skeys");
4681 GICCapabilityList
*qmp_query_gic_capabilities(Error
**errp
)
4683 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-gic-capabilities");
4688 HotpluggableCPUList
*qmp_query_hotpluggable_cpus(Error
**errp
)
4690 MachineState
*ms
= MACHINE(qdev_get_machine());
4691 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
4693 if (!mc
->has_hotpluggable_cpus
) {
4694 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-hotpluggable-cpus");
4698 return machine_query_hotpluggable_cpus(ms
);