4 * Copyright (c) 2003-2004 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 #include "qemu/osdep.h"
26 #include "qemu/units.h"
30 #include "monitor/qdev.h"
32 #include "hw/pci/pci.h"
33 #include "sysemu/watchdog.h"
34 #include "hw/loader.h"
35 #include "exec/gdbstub.h"
37 #include "net/slirp.h"
38 #include "chardev/char-fe.h"
39 #include "chardev/char-io.h"
40 #include "chardev/char-mux.h"
41 #include "ui/qemu-spice.h"
42 #include "sysemu/numa.h"
43 #include "monitor/monitor.h"
44 #include "qemu/config-file.h"
45 #include "qemu/readline.h"
46 #include "ui/console.h"
48 #include "sysemu/block-backend.h"
49 #include "audio/audio.h"
50 #include "disas/disas.h"
51 #include "sysemu/balloon.h"
52 #include "qemu/timer.h"
53 #include "sysemu/hw_accel.h"
55 #include "sysemu/tpm.h"
56 #include "qapi/qmp/qdict.h"
57 #include "qapi/qmp/qerror.h"
58 #include "qapi/qmp/qnum.h"
59 #include "qapi/qmp/qstring.h"
60 #include "qapi/qmp/qjson.h"
61 #include "qapi/qmp/json-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 const char *flags
; /* p=preconfig */
133 void (*cmd
)(Monitor
*mon
, const QDict
*qdict
);
134 /* @sub_table is a list of 2nd level of commands. If it does not exist,
135 * cmd should be used. If it exists, sub_table[?].cmd should be
136 * used, and cmd of 1st level plays the role of help function.
138 struct mon_cmd_t
*sub_table
;
139 void (*command_completion
)(ReadLineState
*rs
, int nb_args
, const char *str
);
142 /* file descriptors passed via SCM_RIGHTS */
143 typedef struct mon_fd_t mon_fd_t
;
147 QLIST_ENTRY(mon_fd_t
) next
;
150 /* file descriptor associated with a file descriptor set */
151 typedef struct MonFdsetFd MonFdsetFd
;
156 QLIST_ENTRY(MonFdsetFd
) next
;
159 /* file descriptor set containing fds passed via SCM_RIGHTS */
160 typedef struct MonFdset MonFdset
;
163 QLIST_HEAD(, MonFdsetFd
) fds
;
164 QLIST_HEAD(, MonFdsetFd
) dup_fds
;
165 QLIST_ENTRY(MonFdset
) next
;
169 JSONMessageParser parser
;
171 * When a client connects, we're in capabilities negotiation mode.
172 * When command qmp_capabilities succeeds, we go into command
175 QmpCommandList
*commands
;
176 bool qmp_caps
[QMP_CAPABILITY__MAX
];
178 * Protects qmp request/response queue. Please take monitor_lock
179 * first when used together.
181 QemuMutex qmp_queue_lock
;
182 /* Input queue that holds all the parsed QMP requests */
183 GQueue
*qmp_requests
;
184 /* Output queue contains all the QMP responses in order */
185 GQueue
*qmp_responses
;
189 * To prevent flooding clients, events can be throttled. The
190 * throttling is calculated globally, rather than per-Monitor
193 typedef struct MonitorQAPIEventState
{
194 QAPIEvent event
; /* Throttling state for this event type and... */
195 QDict
*data
; /* ... data, see qapi_event_throttle_equal() */
196 QEMUTimer
*timer
; /* Timer for handling delayed events */
197 QDict
*qdict
; /* Delayed event (if any) */
198 } MonitorQAPIEventState
;
201 int64_t rate
; /* Minimum time (in ns) between two events */
202 } MonitorQAPIEventConf
;
208 int suspend_cnt
; /* Needs to be accessed atomically */
213 * State used only in the thread "owning" the monitor.
214 * If @use_io_thr, this is mon_global.mon_iothread.
215 * Else, it's the main thread.
216 * These members can be safely accessed without locks.
222 BlockCompletionFunc
*password_completion_cb
;
223 void *password_opaque
;
224 mon_cmd_t
*cmd_table
;
225 QTAILQ_ENTRY(Monitor
) entry
;
228 * The per-monitor lock. We can't access guest memory when holding
234 * Fields that are protected by the per-monitor lock.
236 QLIST_HEAD(, mon_fd_t
) fds
;
239 /* Read under either BQL or mon_lock, written with BQL+mon_lock. */
243 /* Let's add monitor global variables to this struct. */
245 IOThread
*mon_iothread
;
246 /* Bottom half to dispatch the requests received from IO thread */
247 QEMUBH
*qmp_dispatcher_bh
;
248 /* Bottom half to deliver the responses back to clients */
249 QEMUBH
*qmp_respond_bh
;
253 /* Owner of the request */
255 /* "id" field of the request */
257 /* Request object to be handled */
260 * Whether we need to resume the monitor afterward. This flag is
261 * used to emulate the old QMP server behavior that the current
262 * command must be completed before execution of the next one.
266 typedef struct QMPRequest QMPRequest
;
268 /* QMP checker flags */
269 #define QMP_ACCEPT_UNKNOWNS 1
271 /* Protects mon_list, monitor_qapi_event_state. */
272 static QemuMutex monitor_lock
;
273 static GHashTable
*monitor_qapi_event_state
;
274 static QTAILQ_HEAD(mon_list
, Monitor
) mon_list
;
276 /* Protects mon_fdsets */
277 static QemuMutex mon_fdsets_lock
;
278 static QLIST_HEAD(mon_fdsets
, MonFdset
) mon_fdsets
;
280 static int mon_refcount
;
282 static mon_cmd_t mon_cmds
[];
283 static mon_cmd_t info_cmds
[];
285 QmpCommandList qmp_commands
, qmp_cap_negotiation_commands
;
289 static void monitor_command_cb(void *opaque
, const char *cmdline
,
290 void *readline_opaque
);
293 * Is @mon a QMP monitor?
295 static inline bool monitor_is_qmp(const Monitor
*mon
)
297 return (mon
->flags
& MONITOR_USE_CONTROL
);
301 * Whether @mon is using readline? Note: not all HMP monitors use
302 * readline, e.g., gdbserver has a non-interactive HMP monitor, so
303 * readline is not used there.
305 static inline bool monitor_uses_readline(const Monitor
*mon
)
307 return mon
->flags
& MONITOR_USE_READLINE
;
310 static inline bool monitor_is_hmp_non_interactive(const Monitor
*mon
)
312 return !monitor_is_qmp(mon
) && !monitor_uses_readline(mon
);
316 * Return the clock to use for recording an event's time.
317 * Beware: result is invalid before configure_accelerator().
319 static inline QEMUClockType
monitor_get_event_clock(void)
322 * This allows us to perform tests on the monitor queues to verify
323 * that the rate limits are enforced.
325 return qtest_enabled() ? QEMU_CLOCK_VIRTUAL
: QEMU_CLOCK_REALTIME
;
329 * Is the current monitor, if any, a QMP monitor?
331 bool monitor_cur_is_qmp(void)
333 return cur_mon
&& monitor_is_qmp(cur_mon
);
336 void monitor_read_command(Monitor
*mon
, int show_prompt
)
341 readline_start(mon
->rs
, "(qemu) ", 0, monitor_command_cb
, NULL
);
343 readline_show_prompt(mon
->rs
);
346 int monitor_read_password(Monitor
*mon
, ReadLineFunc
*readline_func
,
350 readline_start(mon
->rs
, "Password: ", 1, readline_func
, opaque
);
351 /* prompt is printed on return from the command handler */
354 monitor_printf(mon
, "terminal does not support password prompting\n");
359 static void qmp_request_free(QMPRequest
*req
)
361 qobject_unref(req
->id
);
362 qobject_unref(req
->req
);
366 /* Must with the mon->qmp.qmp_queue_lock held */
367 static void monitor_qmp_cleanup_req_queue_locked(Monitor
*mon
)
369 while (!g_queue_is_empty(mon
->qmp
.qmp_requests
)) {
370 qmp_request_free(g_queue_pop_head(mon
->qmp
.qmp_requests
));
374 /* Must with the mon->qmp.qmp_queue_lock held */
375 static void monitor_qmp_cleanup_resp_queue_locked(Monitor
*mon
)
377 while (!g_queue_is_empty(mon
->qmp
.qmp_responses
)) {
378 qobject_unref((QObject
*)g_queue_pop_head(mon
->qmp
.qmp_responses
));
382 static void monitor_qmp_cleanup_queues(Monitor
*mon
)
384 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
385 monitor_qmp_cleanup_req_queue_locked(mon
);
386 monitor_qmp_cleanup_resp_queue_locked(mon
);
387 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
391 static void monitor_flush_locked(Monitor
*mon
);
393 static gboolean
monitor_unblocked(GIOChannel
*chan
, GIOCondition cond
,
396 Monitor
*mon
= opaque
;
398 qemu_mutex_lock(&mon
->mon_lock
);
400 monitor_flush_locked(mon
);
401 qemu_mutex_unlock(&mon
->mon_lock
);
405 /* Called with mon->mon_lock held. */
406 static void monitor_flush_locked(Monitor
*mon
)
412 if (mon
->skip_flush
) {
416 buf
= qstring_get_str(mon
->outbuf
);
417 len
= qstring_get_length(mon
->outbuf
);
419 if (len
&& !mon
->mux_out
) {
420 rc
= qemu_chr_fe_write(&mon
->chr
, (const uint8_t *) buf
, len
);
421 if ((rc
< 0 && errno
!= EAGAIN
) || (rc
== len
)) {
422 /* all flushed or error */
423 qobject_unref(mon
->outbuf
);
424 mon
->outbuf
= qstring_new();
429 QString
*tmp
= qstring_from_str(buf
+ rc
);
430 qobject_unref(mon
->outbuf
);
433 if (mon
->out_watch
== 0) {
435 qemu_chr_fe_add_watch(&mon
->chr
, G_IO_OUT
| G_IO_HUP
,
436 monitor_unblocked
, mon
);
441 void monitor_flush(Monitor
*mon
)
443 qemu_mutex_lock(&mon
->mon_lock
);
444 monitor_flush_locked(mon
);
445 qemu_mutex_unlock(&mon
->mon_lock
);
448 /* flush at every end of line */
449 static void monitor_puts(Monitor
*mon
, const char *str
)
453 qemu_mutex_lock(&mon
->mon_lock
);
459 qstring_append_chr(mon
->outbuf
, '\r');
461 qstring_append_chr(mon
->outbuf
, c
);
463 monitor_flush_locked(mon
);
466 qemu_mutex_unlock(&mon
->mon_lock
);
469 void monitor_vprintf(Monitor
*mon
, const char *fmt
, va_list ap
)
476 if (monitor_is_qmp(mon
)) {
480 buf
= g_strdup_vprintf(fmt
, ap
);
481 monitor_puts(mon
, buf
);
485 void monitor_printf(Monitor
*mon
, const char *fmt
, ...)
489 monitor_vprintf(mon
, fmt
, ap
);
493 int monitor_fprintf(FILE *stream
, const char *fmt
, ...)
497 monitor_vprintf((Monitor
*)stream
, fmt
, ap
);
502 static void monitor_json_emitter_raw(Monitor
*mon
,
507 json
= mon
->flags
& MONITOR_USE_PRETTY
? qobject_to_json_pretty(data
) :
508 qobject_to_json(data
);
509 assert(json
!= NULL
);
511 qstring_append_chr(json
, '\n');
512 monitor_puts(mon
, qstring_get_str(json
));
517 static void monitor_json_emitter(Monitor
*mon
, QObject
*data
)
519 if (mon
->use_io_thr
) {
521 * If using IO thread, we need to queue the item so that IO
522 * thread will do the rest for us. Take refcount so that
523 * caller won't free the data (which will be finally freed in
526 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
527 g_queue_push_tail(mon
->qmp
.qmp_responses
, qobject_ref(data
));
528 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
529 qemu_bh_schedule(mon_global
.qmp_respond_bh
);
532 * If not using monitor IO thread, then we are in main thread.
533 * Do the emission right away.
535 monitor_json_emitter_raw(mon
, data
);
543 typedef struct QMPResponse QMPResponse
;
545 static QObject
*monitor_qmp_response_pop_one(Monitor
*mon
)
549 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
550 data
= g_queue_pop_head(mon
->qmp
.qmp_responses
);
551 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
556 static void monitor_qmp_response_flush(Monitor
*mon
)
560 while ((data
= monitor_qmp_response_pop_one(mon
))) {
561 monitor_json_emitter_raw(mon
, data
);
567 * Pop a QMPResponse from any monitor's response queue into @response.
568 * Return false if all the queues are empty; else true.
570 static bool monitor_qmp_response_pop_any(QMPResponse
*response
)
573 QObject
*data
= NULL
;
575 qemu_mutex_lock(&monitor_lock
);
576 QTAILQ_FOREACH(mon
, &mon_list
, entry
) {
577 data
= monitor_qmp_response_pop_one(mon
);
580 response
->data
= data
;
584 qemu_mutex_unlock(&monitor_lock
);
588 static void monitor_qmp_bh_responder(void *opaque
)
590 QMPResponse response
;
592 while (monitor_qmp_response_pop_any(&response
)) {
593 monitor_json_emitter_raw(response
.mon
, response
.data
);
594 qobject_unref(response
.data
);
598 static MonitorQAPIEventConf monitor_qapi_event_conf
[QAPI_EVENT__MAX
] = {
599 /* Limit guest-triggerable events to 1 per second */
600 [QAPI_EVENT_RTC_CHANGE
] = { 1000 * SCALE_MS
},
601 [QAPI_EVENT_WATCHDOG
] = { 1000 * SCALE_MS
},
602 [QAPI_EVENT_BALLOON_CHANGE
] = { 1000 * SCALE_MS
},
603 [QAPI_EVENT_QUORUM_REPORT_BAD
] = { 1000 * SCALE_MS
},
604 [QAPI_EVENT_QUORUM_FAILURE
] = { 1000 * SCALE_MS
},
605 [QAPI_EVENT_VSERPORT_CHANGE
] = { 1000 * SCALE_MS
},
609 * Emits the event to every monitor instance, @event is only used for trace
610 * Called with monitor_lock held.
612 static void monitor_qapi_event_emit(QAPIEvent event
, QDict
*qdict
)
616 trace_monitor_protocol_event_emit(event
, qdict
);
617 QTAILQ_FOREACH(mon
, &mon_list
, entry
) {
618 if (monitor_is_qmp(mon
)
619 && mon
->qmp
.commands
!= &qmp_cap_negotiation_commands
) {
620 monitor_json_emitter(mon
, QOBJECT(qdict
));
625 static void monitor_qapi_event_handler(void *opaque
);
628 * Queue a new event for emission to Monitor instances,
629 * applying any rate limiting if required.
632 monitor_qapi_event_queue(QAPIEvent event
, QDict
*qdict
, Error
**errp
)
634 MonitorQAPIEventConf
*evconf
;
635 MonitorQAPIEventState
*evstate
;
637 assert(event
< QAPI_EVENT__MAX
);
638 evconf
= &monitor_qapi_event_conf
[event
];
639 trace_monitor_protocol_event_queue(event
, qdict
, evconf
->rate
);
641 qemu_mutex_lock(&monitor_lock
);
644 /* Unthrottled event */
645 monitor_qapi_event_emit(event
, qdict
);
647 QDict
*data
= qobject_to(QDict
, qdict_get(qdict
, "data"));
648 MonitorQAPIEventState key
= { .event
= event
, .data
= data
};
650 evstate
= g_hash_table_lookup(monitor_qapi_event_state
, &key
);
651 assert(!evstate
|| timer_pending(evstate
->timer
));
655 * Timer is pending for (at least) evconf->rate ns after
656 * last send. Store event for sending when timer fires,
657 * replacing a prior stored event if any.
659 qobject_unref(evstate
->qdict
);
660 evstate
->qdict
= qobject_ref(qdict
);
663 * Last send was (at least) evconf->rate ns ago.
664 * Send immediately, and arm the timer to call
665 * monitor_qapi_event_handler() in evconf->rate ns. Any
666 * events arriving before then will be delayed until then.
668 int64_t now
= qemu_clock_get_ns(monitor_get_event_clock());
670 monitor_qapi_event_emit(event
, qdict
);
672 evstate
= g_new(MonitorQAPIEventState
, 1);
673 evstate
->event
= event
;
674 evstate
->data
= qobject_ref(data
);
675 evstate
->qdict
= NULL
;
676 evstate
->timer
= timer_new_ns(monitor_get_event_clock(),
677 monitor_qapi_event_handler
,
679 g_hash_table_add(monitor_qapi_event_state
, evstate
);
680 timer_mod_ns(evstate
->timer
, now
+ evconf
->rate
);
684 qemu_mutex_unlock(&monitor_lock
);
688 * This function runs evconf->rate ns after sending a throttled
690 * If another event has since been stored, send it.
692 static void monitor_qapi_event_handler(void *opaque
)
694 MonitorQAPIEventState
*evstate
= opaque
;
695 MonitorQAPIEventConf
*evconf
= &monitor_qapi_event_conf
[evstate
->event
];
697 trace_monitor_protocol_event_handler(evstate
->event
, evstate
->qdict
);
698 qemu_mutex_lock(&monitor_lock
);
700 if (evstate
->qdict
) {
701 int64_t now
= qemu_clock_get_ns(monitor_get_event_clock());
703 monitor_qapi_event_emit(evstate
->event
, evstate
->qdict
);
704 qobject_unref(evstate
->qdict
);
705 evstate
->qdict
= NULL
;
706 timer_mod_ns(evstate
->timer
, now
+ evconf
->rate
);
708 g_hash_table_remove(monitor_qapi_event_state
, evstate
);
709 qobject_unref(evstate
->data
);
710 timer_free(evstate
->timer
);
714 qemu_mutex_unlock(&monitor_lock
);
717 static unsigned int qapi_event_throttle_hash(const void *key
)
719 const MonitorQAPIEventState
*evstate
= key
;
720 unsigned int hash
= evstate
->event
* 255;
722 if (evstate
->event
== QAPI_EVENT_VSERPORT_CHANGE
) {
723 hash
+= g_str_hash(qdict_get_str(evstate
->data
, "id"));
726 if (evstate
->event
== QAPI_EVENT_QUORUM_REPORT_BAD
) {
727 hash
+= g_str_hash(qdict_get_str(evstate
->data
, "node-name"));
733 static gboolean
qapi_event_throttle_equal(const void *a
, const void *b
)
735 const MonitorQAPIEventState
*eva
= a
;
736 const MonitorQAPIEventState
*evb
= b
;
738 if (eva
->event
!= evb
->event
) {
742 if (eva
->event
== QAPI_EVENT_VSERPORT_CHANGE
) {
743 return !strcmp(qdict_get_str(eva
->data
, "id"),
744 qdict_get_str(evb
->data
, "id"));
747 if (eva
->event
== QAPI_EVENT_QUORUM_REPORT_BAD
) {
748 return !strcmp(qdict_get_str(eva
->data
, "node-name"),
749 qdict_get_str(evb
->data
, "node-name"));
755 static void monitor_qapi_event_init(void)
757 monitor_qapi_event_state
= g_hash_table_new(qapi_event_throttle_hash
,
758 qapi_event_throttle_equal
);
759 qmp_event_set_func_emit(monitor_qapi_event_queue
);
762 static void handle_hmp_command(Monitor
*mon
, const char *cmdline
);
764 static void monitor_data_init(Monitor
*mon
, bool skip_flush
,
767 memset(mon
, 0, sizeof(Monitor
));
768 qemu_mutex_init(&mon
->mon_lock
);
769 qemu_mutex_init(&mon
->qmp
.qmp_queue_lock
);
770 mon
->outbuf
= qstring_new();
771 /* Use *mon_cmds by default. */
772 mon
->cmd_table
= mon_cmds
;
773 mon
->skip_flush
= skip_flush
;
774 mon
->use_io_thr
= use_io_thr
;
775 mon
->qmp
.qmp_requests
= g_queue_new();
776 mon
->qmp
.qmp_responses
= g_queue_new();
779 static void monitor_data_destroy(Monitor
*mon
)
781 g_free(mon
->mon_cpu_path
);
782 qemu_chr_fe_deinit(&mon
->chr
, false);
783 if (monitor_is_qmp(mon
)) {
784 json_message_parser_destroy(&mon
->qmp
.parser
);
786 readline_free(mon
->rs
);
787 qobject_unref(mon
->outbuf
);
788 qemu_mutex_destroy(&mon
->mon_lock
);
789 qemu_mutex_destroy(&mon
->qmp
.qmp_queue_lock
);
790 monitor_qmp_cleanup_req_queue_locked(mon
);
791 monitor_qmp_cleanup_resp_queue_locked(mon
);
792 g_queue_free(mon
->qmp
.qmp_requests
);
793 g_queue_free(mon
->qmp
.qmp_responses
);
796 char *qmp_human_monitor_command(const char *command_line
, bool has_cpu_index
,
797 int64_t cpu_index
, Error
**errp
)
800 Monitor
*old_mon
, hmp
;
802 monitor_data_init(&hmp
, true, false);
808 int ret
= monitor_set_cpu(cpu_index
);
811 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "cpu-index",
817 handle_hmp_command(&hmp
, command_line
);
820 qemu_mutex_lock(&hmp
.mon_lock
);
821 if (qstring_get_length(hmp
.outbuf
) > 0) {
822 output
= g_strdup(qstring_get_str(hmp
.outbuf
));
824 output
= g_strdup("");
826 qemu_mutex_unlock(&hmp
.mon_lock
);
829 monitor_data_destroy(&hmp
);
833 static int compare_cmd(const char *name
, const char *list
)
835 const char *p
, *pstart
;
841 p
= qemu_strchrnul(p
, '|');
842 if ((p
- pstart
) == len
&& !memcmp(pstart
, name
, len
))
851 static int get_str(char *buf
, int buf_size
, const char **pp
)
859 while (qemu_isspace(*p
)) {
870 while (*p
!= '\0' && *p
!= '\"') {
886 printf("unsupported escape code: '\\%c'\n", c
);
889 if ((q
- buf
) < buf_size
- 1) {
893 if ((q
- buf
) < buf_size
- 1) {
900 printf("unterminated string\n");
905 while (*p
!= '\0' && !qemu_isspace(*p
)) {
906 if ((q
- buf
) < buf_size
- 1) {
919 static void free_cmdline_args(char **args
, int nb_args
)
923 assert(nb_args
<= MAX_ARGS
);
925 for (i
= 0; i
< nb_args
; i
++) {
932 * Parse the command line to get valid args.
933 * @cmdline: command line to be parsed.
934 * @pnb_args: location to store the number of args, must NOT be NULL.
935 * @args: location to store the args, which should be freed by caller, must
938 * Returns 0 on success, negative on failure.
940 * NOTE: this parser is an approximate form of the real command parser. Number
941 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
942 * return with failure.
944 static int parse_cmdline(const char *cmdline
,
945 int *pnb_args
, char **args
)
954 while (qemu_isspace(*p
)) {
960 if (nb_args
>= MAX_ARGS
) {
963 ret
= get_str(buf
, sizeof(buf
), &p
);
967 args
[nb_args
] = g_strdup(buf
);
974 free_cmdline_args(args
, nb_args
);
979 * Returns true if the command can be executed in preconfig mode
980 * i.e. it has the 'p' flag.
982 static bool cmd_can_preconfig(const mon_cmd_t
*cmd
)
988 return strchr(cmd
->flags
, 'p');
991 static void help_cmd_dump_one(Monitor
*mon
,
992 const mon_cmd_t
*cmd
,
998 if (runstate_check(RUN_STATE_PRECONFIG
) && !cmd_can_preconfig(cmd
)) {
1002 for (i
= 0; i
< prefix_args_nb
; i
++) {
1003 monitor_printf(mon
, "%s ", prefix_args
[i
]);
1005 monitor_printf(mon
, "%s %s -- %s\n", cmd
->name
, cmd
->params
, cmd
->help
);
1008 /* @args[@arg_index] is the valid command need to find in @cmds */
1009 static void help_cmd_dump(Monitor
*mon
, const mon_cmd_t
*cmds
,
1010 char **args
, int nb_args
, int arg_index
)
1012 const mon_cmd_t
*cmd
;
1014 /* No valid arg need to compare with, dump all in *cmds */
1015 if (arg_index
>= nb_args
) {
1016 for (cmd
= cmds
; cmd
->name
!= NULL
; cmd
++) {
1017 help_cmd_dump_one(mon
, cmd
, args
, arg_index
);
1022 /* Find one entry to dump */
1023 for (cmd
= cmds
; cmd
->name
!= NULL
; cmd
++) {
1024 if (compare_cmd(args
[arg_index
], cmd
->name
) &&
1025 ((!runstate_check(RUN_STATE_PRECONFIG
) ||
1026 cmd_can_preconfig(cmd
)))) {
1027 if (cmd
->sub_table
) {
1028 /* continue with next arg */
1029 help_cmd_dump(mon
, cmd
->sub_table
,
1030 args
, nb_args
, arg_index
+ 1);
1032 help_cmd_dump_one(mon
, cmd
, args
, arg_index
);
1039 static void help_cmd(Monitor
*mon
, const char *name
)
1041 char *args
[MAX_ARGS
];
1044 /* 1. parse user input */
1046 /* special case for log, directly dump and return */
1047 if (!strcmp(name
, "log")) {
1048 const QEMULogItem
*item
;
1049 monitor_printf(mon
, "Log items (comma separated):\n");
1050 monitor_printf(mon
, "%-10s %s\n", "none", "remove all logs");
1051 for (item
= qemu_log_items
; item
->mask
!= 0; item
++) {
1052 monitor_printf(mon
, "%-10s %s\n", item
->name
, item
->help
);
1057 if (parse_cmdline(name
, &nb_args
, args
) < 0) {
1062 /* 2. dump the contents according to parsed args */
1063 help_cmd_dump(mon
, mon
->cmd_table
, args
, nb_args
, 0);
1065 free_cmdline_args(args
, nb_args
);
1068 static void do_help_cmd(Monitor
*mon
, const QDict
*qdict
)
1070 help_cmd(mon
, qdict_get_try_str(qdict
, "name"));
1073 static void hmp_trace_event(Monitor
*mon
, const QDict
*qdict
)
1075 const char *tp_name
= qdict_get_str(qdict
, "name");
1076 bool new_state
= qdict_get_bool(qdict
, "option");
1077 bool has_vcpu
= qdict_haskey(qdict
, "vcpu");
1078 int vcpu
= qdict_get_try_int(qdict
, "vcpu", 0);
1079 Error
*local_err
= NULL
;
1082 monitor_printf(mon
, "argument vcpu must be positive");
1086 qmp_trace_event_set_state(tp_name
, new_state
, true, true, has_vcpu
, vcpu
, &local_err
);
1088 error_report_err(local_err
);
1092 #ifdef CONFIG_TRACE_SIMPLE
1093 static void hmp_trace_file(Monitor
*mon
, const QDict
*qdict
)
1095 const char *op
= qdict_get_try_str(qdict
, "op");
1096 const char *arg
= qdict_get_try_str(qdict
, "arg");
1099 st_print_trace_file_status((FILE *)mon
, &monitor_fprintf
);
1100 } else if (!strcmp(op
, "on")) {
1101 st_set_trace_file_enabled(true);
1102 } else if (!strcmp(op
, "off")) {
1103 st_set_trace_file_enabled(false);
1104 } else if (!strcmp(op
, "flush")) {
1105 st_flush_trace_buffer();
1106 } else if (!strcmp(op
, "set")) {
1108 st_set_trace_file(arg
);
1111 monitor_printf(mon
, "unexpected argument \"%s\"\n", op
);
1112 help_cmd(mon
, "trace-file");
1117 static void hmp_info_help(Monitor
*mon
, const QDict
*qdict
)
1119 help_cmd(mon
, "info");
1122 static void query_commands_cb(QmpCommand
*cmd
, void *opaque
)
1124 CommandInfoList
*info
, **list
= opaque
;
1126 if (!cmd
->enabled
) {
1130 info
= g_malloc0(sizeof(*info
));
1131 info
->value
= g_malloc0(sizeof(*info
->value
));
1132 info
->value
->name
= g_strdup(cmd
->name
);
1137 CommandInfoList
*qmp_query_commands(Error
**errp
)
1139 CommandInfoList
*list
= NULL
;
1141 qmp_for_each_command(cur_mon
->qmp
.commands
, query_commands_cb
, &list
);
1146 EventInfoList
*qmp_query_events(Error
**errp
)
1148 EventInfoList
*info
, *ev_list
= NULL
;
1151 for (e
= 0 ; e
< QAPI_EVENT__MAX
; e
++) {
1152 const char *event_name
= QAPIEvent_str(e
);
1153 assert(event_name
!= NULL
);
1154 info
= g_malloc0(sizeof(*info
));
1155 info
->value
= g_malloc0(sizeof(*info
->value
));
1156 info
->value
->name
= g_strdup(event_name
);
1158 info
->next
= ev_list
;
1166 * Minor hack: generated marshalling suppressed for this command
1167 * ('gen': false in the schema) so we can parse the JSON string
1168 * directly into QObject instead of first parsing it with
1169 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
1170 * to QObject with generated output marshallers, every time. Instead,
1171 * we do it in test-qobject-input-visitor.c, just to make sure
1172 * qapi-gen.py's output actually conforms to the schema.
1174 static void qmp_query_qmp_schema(QDict
*qdict
, QObject
**ret_data
,
1177 *ret_data
= qobject_from_qlit(&qmp_schema_qlit
);
1181 * We used to define commands in qmp-commands.hx in addition to the
1182 * QAPI schema. This permitted defining some of them only in certain
1183 * configurations. query-commands has always reflected that (good,
1184 * because it lets QMP clients figure out what's actually available),
1185 * while query-qmp-schema never did (not so good). This function is a
1186 * hack to keep the configuration-specific commands defined exactly as
1187 * before, even though qmp-commands.hx is gone.
1189 * FIXME Educate the QAPI schema on configuration-specific commands,
1190 * and drop this hack.
1192 static void qmp_unregister_commands_hack(void)
1194 #ifndef CONFIG_SPICE
1195 qmp_unregister_command(&qmp_commands
, "query-spice");
1197 #ifndef CONFIG_REPLICATION
1198 qmp_unregister_command(&qmp_commands
, "xen-set-replication");
1199 qmp_unregister_command(&qmp_commands
, "query-xen-replication-status");
1200 qmp_unregister_command(&qmp_commands
, "xen-colo-do-checkpoint");
1203 qmp_unregister_command(&qmp_commands
, "rtc-reset-reinjection");
1204 qmp_unregister_command(&qmp_commands
, "query-sev");
1205 qmp_unregister_command(&qmp_commands
, "query-sev-launch-measure");
1206 qmp_unregister_command(&qmp_commands
, "query-sev-capabilities");
1208 #ifndef TARGET_S390X
1209 qmp_unregister_command(&qmp_commands
, "dump-skeys");
1212 qmp_unregister_command(&qmp_commands
, "query-gic-capabilities");
1214 #if !defined(TARGET_S390X) && !defined(TARGET_I386)
1215 qmp_unregister_command(&qmp_commands
, "query-cpu-model-expansion");
1217 #if !defined(TARGET_S390X)
1218 qmp_unregister_command(&qmp_commands
, "query-cpu-model-baseline");
1219 qmp_unregister_command(&qmp_commands
, "query-cpu-model-comparison");
1221 #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
1222 && !defined(TARGET_S390X)
1223 qmp_unregister_command(&qmp_commands
, "query-cpu-definitions");
1227 static void monitor_init_qmp_commands(void)
1230 * Two command lists:
1231 * - qmp_commands contains all QMP commands
1232 * - qmp_cap_negotiation_commands contains just
1233 * "qmp_capabilities", to enforce capability negotiation
1236 qmp_init_marshal(&qmp_commands
);
1238 qmp_register_command(&qmp_commands
, "query-qmp-schema",
1239 qmp_query_qmp_schema
, QCO_ALLOW_PRECONFIG
);
1240 qmp_register_command(&qmp_commands
, "device_add", qmp_device_add
,
1242 qmp_register_command(&qmp_commands
, "netdev_add", qmp_netdev_add
,
1245 qmp_unregister_commands_hack();
1247 QTAILQ_INIT(&qmp_cap_negotiation_commands
);
1248 qmp_register_command(&qmp_cap_negotiation_commands
, "qmp_capabilities",
1249 qmp_marshal_qmp_capabilities
, QCO_ALLOW_PRECONFIG
);
1252 static bool qmp_cap_enabled(Monitor
*mon
, QMPCapability cap
)
1254 return mon
->qmp
.qmp_caps
[cap
];
1257 static bool qmp_oob_enabled(Monitor
*mon
)
1259 return qmp_cap_enabled(mon
, QMP_CAPABILITY_OOB
);
1262 static void qmp_caps_check(Monitor
*mon
, QMPCapabilityList
*list
,
1265 for (; list
; list
= list
->next
) {
1266 assert(list
->value
< QMP_CAPABILITY__MAX
);
1267 switch (list
->value
) {
1268 case QMP_CAPABILITY_OOB
:
1269 if (!mon
->use_io_thr
) {
1271 * Out-of-band only works with monitors that are
1272 * running on dedicated IOThread.
1274 error_setg(errp
, "This monitor does not support "
1275 "out-of-band (OOB)");
1285 /* This function should only be called after capabilities are checked. */
1286 static void qmp_caps_apply(Monitor
*mon
, QMPCapabilityList
*list
)
1288 for (; list
; list
= list
->next
) {
1289 mon
->qmp
.qmp_caps
[list
->value
] = true;
1294 * Return true if check successful, or false otherwise. When false is
1295 * returned, detailed error will be in errp if provided.
1297 static bool qmp_cmd_oob_check(Monitor
*mon
, QDict
*req
, Error
**errp
)
1299 const char *command
;
1302 command
= qdict_get_try_str(req
, "execute");
1304 error_setg(errp
, "Command field 'execute' missing");
1308 cmd
= qmp_find_command(mon
->qmp
.commands
, command
);
1310 if (mon
->qmp
.commands
== &qmp_cap_negotiation_commands
) {
1311 error_set(errp
, ERROR_CLASS_COMMAND_NOT_FOUND
,
1312 "Expecting capabilities negotiation "
1313 "with 'qmp_capabilities'");
1315 error_set(errp
, ERROR_CLASS_COMMAND_NOT_FOUND
,
1316 "The command %s has not been found", command
);
1321 if (qmp_is_oob(req
)) {
1322 if (!qmp_oob_enabled(mon
)) {
1323 error_setg(errp
, "Please enable out-of-band first "
1324 "for the session during capabilities negotiation");
1327 if (!(cmd
->options
& QCO_ALLOW_OOB
)) {
1328 error_setg(errp
, "The command %s does not support OOB",
1337 void qmp_qmp_capabilities(bool has_enable
, QMPCapabilityList
*enable
,
1340 Error
*local_err
= NULL
;
1342 if (cur_mon
->qmp
.commands
== &qmp_commands
) {
1343 error_set(errp
, ERROR_CLASS_COMMAND_NOT_FOUND
,
1344 "Capabilities negotiation is already complete, command "
1349 /* Enable QMP capabilities provided by the client if applicable. */
1351 qmp_caps_check(cur_mon
, enable
, &local_err
);
1354 * Failed check on any of the capabilities will fail the
1355 * entire command (and thus not apply any of the other
1356 * capabilities that were also requested).
1358 error_propagate(errp
, local_err
);
1361 qmp_caps_apply(cur_mon
, enable
);
1364 cur_mon
->qmp
.commands
= &qmp_commands
;
1367 /* Set the current CPU defined by the user. Callers must hold BQL. */
1368 int monitor_set_cpu(int cpu_index
)
1372 cpu
= qemu_get_cpu(cpu_index
);
1376 g_free(cur_mon
->mon_cpu_path
);
1377 cur_mon
->mon_cpu_path
= object_get_canonical_path(OBJECT(cpu
));
1381 /* Callers must hold BQL. */
1382 static CPUState
*mon_get_cpu_sync(bool synchronize
)
1386 if (cur_mon
->mon_cpu_path
) {
1387 cpu
= (CPUState
*) object_resolve_path_type(cur_mon
->mon_cpu_path
,
1390 g_free(cur_mon
->mon_cpu_path
);
1391 cur_mon
->mon_cpu_path
= NULL
;
1394 if (!cur_mon
->mon_cpu_path
) {
1398 monitor_set_cpu(first_cpu
->cpu_index
);
1402 cpu_synchronize_state(cpu
);
1407 CPUState
*mon_get_cpu(void)
1409 return mon_get_cpu_sync(true);
1412 CPUArchState
*mon_get_cpu_env(void)
1414 CPUState
*cs
= mon_get_cpu();
1416 return cs
? cs
->env_ptr
: NULL
;
1419 int monitor_get_cpu_index(void)
1421 CPUState
*cs
= mon_get_cpu_sync(false);
1423 return cs
? cs
->cpu_index
: UNASSIGNED_CPU_INDEX
;
1426 static void hmp_info_registers(Monitor
*mon
, const QDict
*qdict
)
1428 bool all_cpus
= qdict_get_try_bool(qdict
, "cpustate_all", false);
1433 monitor_printf(mon
, "\nCPU#%d\n", cs
->cpu_index
);
1434 cpu_dump_state(cs
, (FILE *)mon
, monitor_fprintf
, CPU_DUMP_FPU
);
1440 monitor_printf(mon
, "No CPU available\n");
1444 cpu_dump_state(cs
, (FILE *)mon
, monitor_fprintf
, CPU_DUMP_FPU
);
1449 static void hmp_info_jit(Monitor
*mon
, const QDict
*qdict
)
1451 if (!tcg_enabled()) {
1452 error_report("JIT information is only available with accel=tcg");
1456 dump_exec_info((FILE *)mon
, monitor_fprintf
);
1457 dump_drift_info((FILE *)mon
, monitor_fprintf
);
1460 static void hmp_info_opcount(Monitor
*mon
, const QDict
*qdict
)
1462 dump_opcount_info((FILE *)mon
, monitor_fprintf
);
1466 static void hmp_info_history(Monitor
*mon
, const QDict
*qdict
)
1475 str
= readline_get_history(mon
->rs
, i
);
1478 monitor_printf(mon
, "%d: '%s'\n", i
, str
);
1483 static void hmp_info_cpustats(Monitor
*mon
, const QDict
*qdict
)
1485 CPUState
*cs
= mon_get_cpu();
1488 monitor_printf(mon
, "No CPU available\n");
1491 cpu_dump_statistics(cs
, (FILE *)mon
, &monitor_fprintf
, 0);
1494 static void hmp_info_trace_events(Monitor
*mon
, const QDict
*qdict
)
1496 const char *name
= qdict_get_try_str(qdict
, "name");
1497 bool has_vcpu
= qdict_haskey(qdict
, "vcpu");
1498 int vcpu
= qdict_get_try_int(qdict
, "vcpu", 0);
1499 TraceEventInfoList
*events
;
1500 TraceEventInfoList
*elem
;
1501 Error
*local_err
= NULL
;
1507 monitor_printf(mon
, "argument vcpu must be positive");
1511 events
= qmp_trace_event_get_state(name
, has_vcpu
, vcpu
, &local_err
);
1513 error_report_err(local_err
);
1517 for (elem
= events
; elem
!= NULL
; elem
= elem
->next
) {
1518 monitor_printf(mon
, "%s : state %u\n",
1520 elem
->value
->state
== TRACE_EVENT_STATE_ENABLED
? 1 : 0);
1522 qapi_free_TraceEventInfoList(events
);
1525 void qmp_client_migrate_info(const char *protocol
, const char *hostname
,
1526 bool has_port
, int64_t port
,
1527 bool has_tls_port
, int64_t tls_port
,
1528 bool has_cert_subject
, const char *cert_subject
,
1531 if (strcmp(protocol
, "spice") == 0) {
1532 if (!qemu_using_spice(errp
)) {
1536 if (!has_port
&& !has_tls_port
) {
1537 error_setg(errp
, QERR_MISSING_PARAMETER
, "port/tls-port");
1541 if (qemu_spice_migrate_info(hostname
,
1542 has_port
? port
: -1,
1543 has_tls_port
? tls_port
: -1,
1545 error_setg(errp
, QERR_UNDEFINED_ERROR
);
1551 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "protocol", "spice");
1554 static void hmp_logfile(Monitor
*mon
, const QDict
*qdict
)
1558 qemu_set_log_filename(qdict_get_str(qdict
, "filename"), &err
);
1560 error_report_err(err
);
1564 static void hmp_log(Monitor
*mon
, const QDict
*qdict
)
1567 const char *items
= qdict_get_str(qdict
, "items");
1569 if (!strcmp(items
, "none")) {
1572 mask
= qemu_str_to_log_mask(items
);
1574 help_cmd(mon
, "log");
1581 static void hmp_singlestep(Monitor
*mon
, const QDict
*qdict
)
1583 const char *option
= qdict_get_try_str(qdict
, "option");
1584 if (!option
|| !strcmp(option
, "on")) {
1586 } else if (!strcmp(option
, "off")) {
1589 monitor_printf(mon
, "unexpected option %s\n", option
);
1593 static void hmp_gdbserver(Monitor
*mon
, const QDict
*qdict
)
1595 const char *device
= qdict_get_try_str(qdict
, "device");
1597 device
= "tcp::" DEFAULT_GDBSTUB_PORT
;
1598 if (gdbserver_start(device
) < 0) {
1599 monitor_printf(mon
, "Could not open gdbserver on device '%s'\n",
1601 } else if (strcmp(device
, "none") == 0) {
1602 monitor_printf(mon
, "Disabled gdbserver\n");
1604 monitor_printf(mon
, "Waiting for gdb connection on device '%s'\n",
1609 static void hmp_watchdog_action(Monitor
*mon
, const QDict
*qdict
)
1611 const char *action
= qdict_get_str(qdict
, "action");
1612 if (select_watchdog_action(action
) == -1) {
1613 monitor_printf(mon
, "Unknown watchdog action '%s'\n", action
);
1617 static void monitor_printc(Monitor
*mon
, int c
)
1619 monitor_printf(mon
, "'");
1622 monitor_printf(mon
, "\\'");
1625 monitor_printf(mon
, "\\\\");
1628 monitor_printf(mon
, "\\n");
1631 monitor_printf(mon
, "\\r");
1634 if (c
>= 32 && c
<= 126) {
1635 monitor_printf(mon
, "%c", c
);
1637 monitor_printf(mon
, "\\x%02x", c
);
1641 monitor_printf(mon
, "'");
1644 static void memory_dump(Monitor
*mon
, int count
, int format
, int wsize
,
1645 hwaddr addr
, int is_physical
)
1647 int l
, line_size
, i
, max_digits
, len
;
1650 CPUState
*cs
= mon_get_cpu();
1652 if (!cs
&& (format
== 'i' || !is_physical
)) {
1653 monitor_printf(mon
, "Can not dump without CPU\n");
1657 if (format
== 'i') {
1658 monitor_disas(mon
, cs
, addr
, count
, is_physical
);
1662 len
= wsize
* count
;
1671 max_digits
= DIV_ROUND_UP(wsize
* 8, 3);
1675 max_digits
= (wsize
* 8) / 4;
1679 max_digits
= DIV_ROUND_UP(wsize
* 8 * 10, 33);
1688 monitor_printf(mon
, TARGET_FMT_plx
":", addr
);
1690 monitor_printf(mon
, TARGET_FMT_lx
":", (target_ulong
)addr
);
1695 cpu_physical_memory_read(addr
, buf
, l
);
1697 if (cpu_memory_rw_debug(cs
, addr
, buf
, l
, 0) < 0) {
1698 monitor_printf(mon
, " Cannot access memory\n");
1707 v
= ldub_p(buf
+ i
);
1710 v
= lduw_p(buf
+ i
);
1713 v
= (uint32_t)ldl_p(buf
+ i
);
1719 monitor_printf(mon
, " ");
1722 monitor_printf(mon
, "%#*" PRIo64
, max_digits
, v
);
1725 monitor_printf(mon
, "0x%0*" PRIx64
, max_digits
, v
);
1728 monitor_printf(mon
, "%*" PRIu64
, max_digits
, v
);
1731 monitor_printf(mon
, "%*" PRId64
, max_digits
, v
);
1734 monitor_printc(mon
, v
);
1739 monitor_printf(mon
, "\n");
1745 static void hmp_memory_dump(Monitor
*mon
, const QDict
*qdict
)
1747 int count
= qdict_get_int(qdict
, "count");
1748 int format
= qdict_get_int(qdict
, "format");
1749 int size
= qdict_get_int(qdict
, "size");
1750 target_long addr
= qdict_get_int(qdict
, "addr");
1752 memory_dump(mon
, count
, format
, size
, addr
, 0);
1755 static void hmp_physical_memory_dump(Monitor
*mon
, const QDict
*qdict
)
1757 int count
= qdict_get_int(qdict
, "count");
1758 int format
= qdict_get_int(qdict
, "format");
1759 int size
= qdict_get_int(qdict
, "size");
1760 hwaddr addr
= qdict_get_int(qdict
, "addr");
1762 memory_dump(mon
, count
, format
, size
, addr
, 1);
1765 static void *gpa2hva(MemoryRegion
**p_mr
, hwaddr addr
, Error
**errp
)
1767 MemoryRegionSection mrs
= memory_region_find(get_system_memory(),
1771 error_setg(errp
, "No memory is mapped at address 0x%" HWADDR_PRIx
, addr
);
1775 if (!memory_region_is_ram(mrs
.mr
) && !memory_region_is_romd(mrs
.mr
)) {
1776 error_setg(errp
, "Memory at address 0x%" HWADDR_PRIx
"is not RAM", addr
);
1777 memory_region_unref(mrs
.mr
);
1782 return qemu_map_ram_ptr(mrs
.mr
->ram_block
, mrs
.offset_within_region
);
1785 static void hmp_gpa2hva(Monitor
*mon
, const QDict
*qdict
)
1787 hwaddr addr
= qdict_get_int(qdict
, "addr");
1788 Error
*local_err
= NULL
;
1789 MemoryRegion
*mr
= NULL
;
1792 ptr
= gpa2hva(&mr
, addr
, &local_err
);
1794 error_report_err(local_err
);
1798 monitor_printf(mon
, "Host virtual address for 0x%" HWADDR_PRIx
1800 addr
, mr
->name
, ptr
);
1802 memory_region_unref(mr
);
1806 static uint64_t vtop(void *ptr
, Error
**errp
)
1810 uintptr_t addr
= (uintptr_t) ptr
;
1811 uintptr_t pagesize
= getpagesize();
1812 off_t offset
= addr
/ pagesize
* sizeof(pinfo
);
1815 fd
= open("/proc/self/pagemap", O_RDONLY
);
1817 error_setg_errno(errp
, errno
, "Cannot open /proc/self/pagemap");
1821 /* Force copy-on-write if necessary. */
1822 atomic_add((uint8_t *)ptr
, 0);
1824 if (pread(fd
, &pinfo
, sizeof(pinfo
), offset
) != sizeof(pinfo
)) {
1825 error_setg_errno(errp
, errno
, "Cannot read pagemap");
1828 if ((pinfo
& (1ull << 63)) == 0) {
1829 error_setg(errp
, "Page not present");
1832 ret
= ((pinfo
& 0x007fffffffffffffull
) * pagesize
) | (addr
& (pagesize
- 1));
1839 static void hmp_gpa2hpa(Monitor
*mon
, const QDict
*qdict
)
1841 hwaddr addr
= qdict_get_int(qdict
, "addr");
1842 Error
*local_err
= NULL
;
1843 MemoryRegion
*mr
= NULL
;
1847 ptr
= gpa2hva(&mr
, addr
, &local_err
);
1849 error_report_err(local_err
);
1853 physaddr
= vtop(ptr
, &local_err
);
1855 error_report_err(local_err
);
1857 monitor_printf(mon
, "Host physical address for 0x%" HWADDR_PRIx
1858 " (%s) is 0x%" PRIx64
"\n",
1859 addr
, mr
->name
, (uint64_t) physaddr
);
1862 memory_region_unref(mr
);
1866 static void do_print(Monitor
*mon
, const QDict
*qdict
)
1868 int format
= qdict_get_int(qdict
, "format");
1869 hwaddr val
= qdict_get_int(qdict
, "val");
1873 monitor_printf(mon
, "%#" HWADDR_PRIo
, val
);
1876 monitor_printf(mon
, "%#" HWADDR_PRIx
, val
);
1879 monitor_printf(mon
, "%" HWADDR_PRIu
, val
);
1883 monitor_printf(mon
, "%" HWADDR_PRId
, val
);
1886 monitor_printc(mon
, val
);
1889 monitor_printf(mon
, "\n");
1892 static void hmp_sum(Monitor
*mon
, const QDict
*qdict
)
1896 uint32_t start
= qdict_get_int(qdict
, "start");
1897 uint32_t size
= qdict_get_int(qdict
, "size");
1900 for(addr
= start
; addr
< (start
+ size
); addr
++) {
1901 uint8_t val
= address_space_ldub(&address_space_memory
, addr
,
1902 MEMTXATTRS_UNSPECIFIED
, NULL
);
1903 /* BSD sum algorithm ('sum' Unix command) */
1904 sum
= (sum
>> 1) | (sum
<< 15);
1907 monitor_printf(mon
, "%05d\n", sum
);
1910 static int mouse_button_state
;
1912 static void hmp_mouse_move(Monitor
*mon
, const QDict
*qdict
)
1914 int dx
, dy
, dz
, button
;
1915 const char *dx_str
= qdict_get_str(qdict
, "dx_str");
1916 const char *dy_str
= qdict_get_str(qdict
, "dy_str");
1917 const char *dz_str
= qdict_get_try_str(qdict
, "dz_str");
1919 dx
= strtol(dx_str
, NULL
, 0);
1920 dy
= strtol(dy_str
, NULL
, 0);
1921 qemu_input_queue_rel(NULL
, INPUT_AXIS_X
, dx
);
1922 qemu_input_queue_rel(NULL
, INPUT_AXIS_Y
, dy
);
1925 dz
= strtol(dz_str
, NULL
, 0);
1927 button
= (dz
> 0) ? INPUT_BUTTON_WHEEL_UP
: INPUT_BUTTON_WHEEL_DOWN
;
1928 qemu_input_queue_btn(NULL
, button
, true);
1929 qemu_input_event_sync();
1930 qemu_input_queue_btn(NULL
, button
, false);
1933 qemu_input_event_sync();
1936 static void hmp_mouse_button(Monitor
*mon
, const QDict
*qdict
)
1938 static uint32_t bmap
[INPUT_BUTTON__MAX
] = {
1939 [INPUT_BUTTON_LEFT
] = MOUSE_EVENT_LBUTTON
,
1940 [INPUT_BUTTON_MIDDLE
] = MOUSE_EVENT_MBUTTON
,
1941 [INPUT_BUTTON_RIGHT
] = MOUSE_EVENT_RBUTTON
,
1943 int button_state
= qdict_get_int(qdict
, "button_state");
1945 if (mouse_button_state
== button_state
) {
1948 qemu_input_update_buttons(NULL
, bmap
, mouse_button_state
, button_state
);
1949 qemu_input_event_sync();
1950 mouse_button_state
= button_state
;
1953 static void hmp_ioport_read(Monitor
*mon
, const QDict
*qdict
)
1955 int size
= qdict_get_int(qdict
, "size");
1956 int addr
= qdict_get_int(qdict
, "addr");
1957 int has_index
= qdict_haskey(qdict
, "index");
1962 int index
= qdict_get_int(qdict
, "index");
1963 cpu_outb(addr
& IOPORTS_MASK
, index
& 0xff);
1971 val
= cpu_inb(addr
);
1975 val
= cpu_inw(addr
);
1979 val
= cpu_inl(addr
);
1983 monitor_printf(mon
, "port%c[0x%04x] = %#0*x\n",
1984 suffix
, addr
, size
* 2, val
);
1987 static void hmp_ioport_write(Monitor
*mon
, const QDict
*qdict
)
1989 int size
= qdict_get_int(qdict
, "size");
1990 int addr
= qdict_get_int(qdict
, "addr");
1991 int val
= qdict_get_int(qdict
, "val");
1993 addr
&= IOPORTS_MASK
;
1998 cpu_outb(addr
, val
);
2001 cpu_outw(addr
, val
);
2004 cpu_outl(addr
, val
);
2009 static void hmp_boot_set(Monitor
*mon
, const QDict
*qdict
)
2011 Error
*local_err
= NULL
;
2012 const char *bootdevice
= qdict_get_str(qdict
, "bootdevice");
2014 qemu_boot_set(bootdevice
, &local_err
);
2016 error_report_err(local_err
);
2018 monitor_printf(mon
, "boot device list now set to %s\n", bootdevice
);
2022 static void hmp_info_mtree(Monitor
*mon
, const QDict
*qdict
)
2024 bool flatview
= qdict_get_try_bool(qdict
, "flatview", false);
2025 bool dispatch_tree
= qdict_get_try_bool(qdict
, "dispatch_tree", false);
2026 bool owner
= qdict_get_try_bool(qdict
, "owner", false);
2028 mtree_info((fprintf_function
)monitor_printf
, mon
, flatview
, dispatch_tree
,
2032 static void hmp_info_numa(Monitor
*mon
, const QDict
*qdict
)
2035 NumaNodeMem
*node_mem
;
2036 CpuInfoList
*cpu_list
, *cpu
;
2038 cpu_list
= qmp_query_cpus(&error_abort
);
2039 node_mem
= g_new0(NumaNodeMem
, nb_numa_nodes
);
2041 query_numa_node_mem(node_mem
);
2042 monitor_printf(mon
, "%d nodes\n", nb_numa_nodes
);
2043 for (i
= 0; i
< nb_numa_nodes
; i
++) {
2044 monitor_printf(mon
, "node %d cpus:", i
);
2045 for (cpu
= cpu_list
; cpu
; cpu
= cpu
->next
) {
2046 if (cpu
->value
->has_props
&& cpu
->value
->props
->has_node_id
&&
2047 cpu
->value
->props
->node_id
== i
) {
2048 monitor_printf(mon
, " %" PRIi64
, cpu
->value
->CPU
);
2051 monitor_printf(mon
, "\n");
2052 monitor_printf(mon
, "node %d size: %" PRId64
" MB\n", i
,
2053 node_mem
[i
].node_mem
>> 20);
2054 monitor_printf(mon
, "node %d plugged: %" PRId64
" MB\n", i
,
2055 node_mem
[i
].node_plugged_mem
>> 20);
2057 qapi_free_CpuInfoList(cpu_list
);
2061 #ifdef CONFIG_PROFILER
2066 static void hmp_info_profile(Monitor
*mon
, const QDict
*qdict
)
2068 monitor_printf(mon
, "async time %" PRId64
" (%0.3f)\n",
2069 dev_time
, dev_time
/ (double)NANOSECONDS_PER_SECOND
);
2070 monitor_printf(mon
, "qemu time %" PRId64
" (%0.3f)\n",
2071 tcg_time
, tcg_time
/ (double)NANOSECONDS_PER_SECOND
);
2076 static void hmp_info_profile(Monitor
*mon
, const QDict
*qdict
)
2078 monitor_printf(mon
, "Internal profiler not compiled\n");
2082 /* Capture support */
2083 static QLIST_HEAD (capture_list_head
, CaptureState
) capture_head
;
2085 static void hmp_info_capture(Monitor
*mon
, const QDict
*qdict
)
2090 for (s
= capture_head
.lh_first
, i
= 0; s
; s
= s
->entries
.le_next
, ++i
) {
2091 monitor_printf(mon
, "[%d]: ", i
);
2092 s
->ops
.info (s
->opaque
);
2096 static void hmp_stopcapture(Monitor
*mon
, const QDict
*qdict
)
2099 int n
= qdict_get_int(qdict
, "n");
2102 for (s
= capture_head
.lh_first
, i
= 0; s
; s
= s
->entries
.le_next
, ++i
) {
2104 s
->ops
.destroy (s
->opaque
);
2105 QLIST_REMOVE (s
, entries
);
2112 static void hmp_wavcapture(Monitor
*mon
, const QDict
*qdict
)
2114 const char *path
= qdict_get_str(qdict
, "path");
2115 int has_freq
= qdict_haskey(qdict
, "freq");
2116 int freq
= qdict_get_try_int(qdict
, "freq", -1);
2117 int has_bits
= qdict_haskey(qdict
, "bits");
2118 int bits
= qdict_get_try_int(qdict
, "bits", -1);
2119 int has_channels
= qdict_haskey(qdict
, "nchannels");
2120 int nchannels
= qdict_get_try_int(qdict
, "nchannels", -1);
2123 s
= g_malloc0 (sizeof (*s
));
2125 freq
= has_freq
? freq
: 44100;
2126 bits
= has_bits
? bits
: 16;
2127 nchannels
= has_channels
? nchannels
: 2;
2129 if (wav_start_capture (s
, path
, freq
, bits
, nchannels
)) {
2130 monitor_printf(mon
, "Failed to add wave capture\n");
2134 QLIST_INSERT_HEAD (&capture_head
, s
, entries
);
2137 static qemu_acl
*find_acl(Monitor
*mon
, const char *name
)
2139 qemu_acl
*acl
= qemu_acl_find(name
);
2142 monitor_printf(mon
, "acl: unknown list '%s'\n", name
);
2147 static void hmp_acl_show(Monitor
*mon
, const QDict
*qdict
)
2149 const char *aclname
= qdict_get_str(qdict
, "aclname");
2150 qemu_acl
*acl
= find_acl(mon
, aclname
);
2151 qemu_acl_entry
*entry
;
2155 monitor_printf(mon
, "policy: %s\n",
2156 acl
->defaultDeny
? "deny" : "allow");
2157 QTAILQ_FOREACH(entry
, &acl
->entries
, next
) {
2159 monitor_printf(mon
, "%d: %s %s\n", i
,
2160 entry
->deny
? "deny" : "allow", entry
->match
);
2165 static void hmp_acl_reset(Monitor
*mon
, const QDict
*qdict
)
2167 const char *aclname
= qdict_get_str(qdict
, "aclname");
2168 qemu_acl
*acl
= find_acl(mon
, aclname
);
2171 qemu_acl_reset(acl
);
2172 monitor_printf(mon
, "acl: removed all rules\n");
2176 static void hmp_acl_policy(Monitor
*mon
, const QDict
*qdict
)
2178 const char *aclname
= qdict_get_str(qdict
, "aclname");
2179 const char *policy
= qdict_get_str(qdict
, "policy");
2180 qemu_acl
*acl
= find_acl(mon
, aclname
);
2183 if (strcmp(policy
, "allow") == 0) {
2184 acl
->defaultDeny
= 0;
2185 monitor_printf(mon
, "acl: policy set to 'allow'\n");
2186 } else if (strcmp(policy
, "deny") == 0) {
2187 acl
->defaultDeny
= 1;
2188 monitor_printf(mon
, "acl: policy set to 'deny'\n");
2190 monitor_printf(mon
, "acl: unknown policy '%s', "
2191 "expected 'deny' or 'allow'\n", policy
);
2196 static void hmp_acl_add(Monitor
*mon
, const QDict
*qdict
)
2198 const char *aclname
= qdict_get_str(qdict
, "aclname");
2199 const char *match
= qdict_get_str(qdict
, "match");
2200 const char *policy
= qdict_get_str(qdict
, "policy");
2201 int has_index
= qdict_haskey(qdict
, "index");
2202 int index
= qdict_get_try_int(qdict
, "index", -1);
2203 qemu_acl
*acl
= find_acl(mon
, aclname
);
2207 if (strcmp(policy
, "allow") == 0) {
2209 } else if (strcmp(policy
, "deny") == 0) {
2212 monitor_printf(mon
, "acl: unknown policy '%s', "
2213 "expected 'deny' or 'allow'\n", policy
);
2217 ret
= qemu_acl_insert(acl
, deny
, match
, index
);
2219 ret
= qemu_acl_append(acl
, deny
, match
);
2221 monitor_printf(mon
, "acl: unable to add acl entry\n");
2223 monitor_printf(mon
, "acl: added rule at position %d\n", ret
);
2227 static void hmp_acl_remove(Monitor
*mon
, const QDict
*qdict
)
2229 const char *aclname
= qdict_get_str(qdict
, "aclname");
2230 const char *match
= qdict_get_str(qdict
, "match");
2231 qemu_acl
*acl
= find_acl(mon
, aclname
);
2235 ret
= qemu_acl_remove(acl
, match
);
2237 monitor_printf(mon
, "acl: no matching acl entry\n");
2239 monitor_printf(mon
, "acl: removed rule at position %d\n", ret
);
2243 void qmp_getfd(const char *fdname
, Error
**errp
)
2248 fd
= qemu_chr_fe_get_msgfd(&cur_mon
->chr
);
2250 error_setg(errp
, QERR_FD_NOT_SUPPLIED
);
2254 if (qemu_isdigit(fdname
[0])) {
2256 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "fdname",
2257 "a name not starting with a digit");
2261 qemu_mutex_lock(&cur_mon
->mon_lock
);
2262 QLIST_FOREACH(monfd
, &cur_mon
->fds
, next
) {
2263 if (strcmp(monfd
->name
, fdname
) != 0) {
2269 qemu_mutex_unlock(&cur_mon
->mon_lock
);
2270 /* Make sure close() is out of critical section */
2275 monfd
= g_malloc0(sizeof(mon_fd_t
));
2276 monfd
->name
= g_strdup(fdname
);
2279 QLIST_INSERT_HEAD(&cur_mon
->fds
, monfd
, next
);
2280 qemu_mutex_unlock(&cur_mon
->mon_lock
);
2283 void qmp_closefd(const char *fdname
, Error
**errp
)
2288 qemu_mutex_lock(&cur_mon
->mon_lock
);
2289 QLIST_FOREACH(monfd
, &cur_mon
->fds
, next
) {
2290 if (strcmp(monfd
->name
, fdname
) != 0) {
2294 QLIST_REMOVE(monfd
, next
);
2296 g_free(monfd
->name
);
2298 qemu_mutex_unlock(&cur_mon
->mon_lock
);
2299 /* Make sure close() is out of critical section */
2304 qemu_mutex_unlock(&cur_mon
->mon_lock
);
2305 error_setg(errp
, QERR_FD_NOT_FOUND
, fdname
);
2308 int monitor_get_fd(Monitor
*mon
, const char *fdname
, Error
**errp
)
2312 qemu_mutex_lock(&mon
->mon_lock
);
2313 QLIST_FOREACH(monfd
, &mon
->fds
, next
) {
2316 if (strcmp(monfd
->name
, fdname
) != 0) {
2322 /* caller takes ownership of fd */
2323 QLIST_REMOVE(monfd
, next
);
2324 g_free(monfd
->name
);
2326 qemu_mutex_unlock(&mon
->mon_lock
);
2331 qemu_mutex_unlock(&mon
->mon_lock
);
2332 error_setg(errp
, "File descriptor named '%s' has not been found", fdname
);
2336 static void monitor_fdset_cleanup(MonFdset
*mon_fdset
)
2338 MonFdsetFd
*mon_fdset_fd
;
2339 MonFdsetFd
*mon_fdset_fd_next
;
2341 QLIST_FOREACH_SAFE(mon_fdset_fd
, &mon_fdset
->fds
, next
, mon_fdset_fd_next
) {
2342 if ((mon_fdset_fd
->removed
||
2343 (QLIST_EMPTY(&mon_fdset
->dup_fds
) && mon_refcount
== 0)) &&
2344 runstate_is_running()) {
2345 close(mon_fdset_fd
->fd
);
2346 g_free(mon_fdset_fd
->opaque
);
2347 QLIST_REMOVE(mon_fdset_fd
, next
);
2348 g_free(mon_fdset_fd
);
2352 if (QLIST_EMPTY(&mon_fdset
->fds
) && QLIST_EMPTY(&mon_fdset
->dup_fds
)) {
2353 QLIST_REMOVE(mon_fdset
, next
);
2358 static void monitor_fdsets_cleanup(void)
2360 MonFdset
*mon_fdset
;
2361 MonFdset
*mon_fdset_next
;
2363 qemu_mutex_lock(&mon_fdsets_lock
);
2364 QLIST_FOREACH_SAFE(mon_fdset
, &mon_fdsets
, next
, mon_fdset_next
) {
2365 monitor_fdset_cleanup(mon_fdset
);
2367 qemu_mutex_unlock(&mon_fdsets_lock
);
2370 AddfdInfo
*qmp_add_fd(bool has_fdset_id
, int64_t fdset_id
, bool has_opaque
,
2371 const char *opaque
, Error
**errp
)
2374 Monitor
*mon
= cur_mon
;
2377 fd
= qemu_chr_fe_get_msgfd(&mon
->chr
);
2379 error_setg(errp
, QERR_FD_NOT_SUPPLIED
);
2383 fdinfo
= monitor_fdset_add_fd(fd
, has_fdset_id
, fdset_id
,
2384 has_opaque
, opaque
, errp
);
2396 void qmp_remove_fd(int64_t fdset_id
, bool has_fd
, int64_t fd
, Error
**errp
)
2398 MonFdset
*mon_fdset
;
2399 MonFdsetFd
*mon_fdset_fd
;
2402 qemu_mutex_lock(&mon_fdsets_lock
);
2403 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2404 if (mon_fdset
->id
!= fdset_id
) {
2407 QLIST_FOREACH(mon_fdset_fd
, &mon_fdset
->fds
, next
) {
2409 if (mon_fdset_fd
->fd
!= fd
) {
2412 mon_fdset_fd
->removed
= true;
2415 mon_fdset_fd
->removed
= true;
2418 if (has_fd
&& !mon_fdset_fd
) {
2421 monitor_fdset_cleanup(mon_fdset
);
2422 qemu_mutex_unlock(&mon_fdsets_lock
);
2427 qemu_mutex_unlock(&mon_fdsets_lock
);
2429 snprintf(fd_str
, sizeof(fd_str
), "fdset-id:%" PRId64
", fd:%" PRId64
,
2432 snprintf(fd_str
, sizeof(fd_str
), "fdset-id:%" PRId64
, fdset_id
);
2434 error_setg(errp
, QERR_FD_NOT_FOUND
, fd_str
);
2437 FdsetInfoList
*qmp_query_fdsets(Error
**errp
)
2439 MonFdset
*mon_fdset
;
2440 MonFdsetFd
*mon_fdset_fd
;
2441 FdsetInfoList
*fdset_list
= NULL
;
2443 qemu_mutex_lock(&mon_fdsets_lock
);
2444 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2445 FdsetInfoList
*fdset_info
= g_malloc0(sizeof(*fdset_info
));
2446 FdsetFdInfoList
*fdsetfd_list
= NULL
;
2448 fdset_info
->value
= g_malloc0(sizeof(*fdset_info
->value
));
2449 fdset_info
->value
->fdset_id
= mon_fdset
->id
;
2451 QLIST_FOREACH(mon_fdset_fd
, &mon_fdset
->fds
, next
) {
2452 FdsetFdInfoList
*fdsetfd_info
;
2454 fdsetfd_info
= g_malloc0(sizeof(*fdsetfd_info
));
2455 fdsetfd_info
->value
= g_malloc0(sizeof(*fdsetfd_info
->value
));
2456 fdsetfd_info
->value
->fd
= mon_fdset_fd
->fd
;
2457 if (mon_fdset_fd
->opaque
) {
2458 fdsetfd_info
->value
->has_opaque
= true;
2459 fdsetfd_info
->value
->opaque
= g_strdup(mon_fdset_fd
->opaque
);
2461 fdsetfd_info
->value
->has_opaque
= false;
2464 fdsetfd_info
->next
= fdsetfd_list
;
2465 fdsetfd_list
= fdsetfd_info
;
2468 fdset_info
->value
->fds
= fdsetfd_list
;
2470 fdset_info
->next
= fdset_list
;
2471 fdset_list
= fdset_info
;
2473 qemu_mutex_unlock(&mon_fdsets_lock
);
2478 AddfdInfo
*monitor_fdset_add_fd(int fd
, bool has_fdset_id
, int64_t fdset_id
,
2479 bool has_opaque
, const char *opaque
,
2482 MonFdset
*mon_fdset
= NULL
;
2483 MonFdsetFd
*mon_fdset_fd
;
2486 qemu_mutex_lock(&mon_fdsets_lock
);
2488 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2489 /* Break if match found or match impossible due to ordering by ID */
2490 if (fdset_id
<= mon_fdset
->id
) {
2491 if (fdset_id
< mon_fdset
->id
) {
2499 if (mon_fdset
== NULL
) {
2500 int64_t fdset_id_prev
= -1;
2501 MonFdset
*mon_fdset_cur
= QLIST_FIRST(&mon_fdsets
);
2505 error_setg(errp
, QERR_INVALID_PARAMETER_VALUE
, "fdset-id",
2506 "a non-negative value");
2507 qemu_mutex_unlock(&mon_fdsets_lock
);
2510 /* Use specified fdset ID */
2511 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2512 mon_fdset_cur
= mon_fdset
;
2513 if (fdset_id
< mon_fdset_cur
->id
) {
2518 /* Use first available fdset ID */
2519 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2520 mon_fdset_cur
= mon_fdset
;
2521 if (fdset_id_prev
== mon_fdset_cur
->id
- 1) {
2522 fdset_id_prev
= mon_fdset_cur
->id
;
2529 mon_fdset
= g_malloc0(sizeof(*mon_fdset
));
2531 mon_fdset
->id
= fdset_id
;
2533 mon_fdset
->id
= fdset_id_prev
+ 1;
2536 /* The fdset list is ordered by fdset ID */
2537 if (!mon_fdset_cur
) {
2538 QLIST_INSERT_HEAD(&mon_fdsets
, mon_fdset
, next
);
2539 } else if (mon_fdset
->id
< mon_fdset_cur
->id
) {
2540 QLIST_INSERT_BEFORE(mon_fdset_cur
, mon_fdset
, next
);
2542 QLIST_INSERT_AFTER(mon_fdset_cur
, mon_fdset
, next
);
2546 mon_fdset_fd
= g_malloc0(sizeof(*mon_fdset_fd
));
2547 mon_fdset_fd
->fd
= fd
;
2548 mon_fdset_fd
->removed
= false;
2550 mon_fdset_fd
->opaque
= g_strdup(opaque
);
2552 QLIST_INSERT_HEAD(&mon_fdset
->fds
, mon_fdset_fd
, next
);
2554 fdinfo
= g_malloc0(sizeof(*fdinfo
));
2555 fdinfo
->fdset_id
= mon_fdset
->id
;
2556 fdinfo
->fd
= mon_fdset_fd
->fd
;
2558 qemu_mutex_unlock(&mon_fdsets_lock
);
2562 int monitor_fdset_get_fd(int64_t fdset_id
, int flags
)
2567 MonFdset
*mon_fdset
;
2568 MonFdsetFd
*mon_fdset_fd
;
2572 qemu_mutex_lock(&mon_fdsets_lock
);
2573 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2574 if (mon_fdset
->id
!= fdset_id
) {
2577 QLIST_FOREACH(mon_fdset_fd
, &mon_fdset
->fds
, next
) {
2578 mon_fd_flags
= fcntl(mon_fdset_fd
->fd
, F_GETFL
);
2579 if (mon_fd_flags
== -1) {
2584 if ((flags
& O_ACCMODE
) == (mon_fd_flags
& O_ACCMODE
)) {
2585 ret
= mon_fdset_fd
->fd
;
2595 qemu_mutex_unlock(&mon_fdsets_lock
);
2600 int monitor_fdset_dup_fd_add(int64_t fdset_id
, int dup_fd
)
2602 MonFdset
*mon_fdset
;
2603 MonFdsetFd
*mon_fdset_fd_dup
;
2605 qemu_mutex_lock(&mon_fdsets_lock
);
2606 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2607 if (mon_fdset
->id
!= fdset_id
) {
2610 QLIST_FOREACH(mon_fdset_fd_dup
, &mon_fdset
->dup_fds
, next
) {
2611 if (mon_fdset_fd_dup
->fd
== dup_fd
) {
2615 mon_fdset_fd_dup
= g_malloc0(sizeof(*mon_fdset_fd_dup
));
2616 mon_fdset_fd_dup
->fd
= dup_fd
;
2617 QLIST_INSERT_HEAD(&mon_fdset
->dup_fds
, mon_fdset_fd_dup
, next
);
2618 qemu_mutex_unlock(&mon_fdsets_lock
);
2623 qemu_mutex_unlock(&mon_fdsets_lock
);
2627 static int monitor_fdset_dup_fd_find_remove(int dup_fd
, bool remove
)
2629 MonFdset
*mon_fdset
;
2630 MonFdsetFd
*mon_fdset_fd_dup
;
2632 qemu_mutex_lock(&mon_fdsets_lock
);
2633 QLIST_FOREACH(mon_fdset
, &mon_fdsets
, next
) {
2634 QLIST_FOREACH(mon_fdset_fd_dup
, &mon_fdset
->dup_fds
, next
) {
2635 if (mon_fdset_fd_dup
->fd
== dup_fd
) {
2637 QLIST_REMOVE(mon_fdset_fd_dup
, next
);
2638 if (QLIST_EMPTY(&mon_fdset
->dup_fds
)) {
2639 monitor_fdset_cleanup(mon_fdset
);
2643 qemu_mutex_unlock(&mon_fdsets_lock
);
2644 return mon_fdset
->id
;
2651 qemu_mutex_unlock(&mon_fdsets_lock
);
2655 int monitor_fdset_dup_fd_find(int dup_fd
)
2657 return monitor_fdset_dup_fd_find_remove(dup_fd
, false);
2660 void monitor_fdset_dup_fd_remove(int dup_fd
)
2662 monitor_fdset_dup_fd_find_remove(dup_fd
, true);
2665 int monitor_fd_param(Monitor
*mon
, const char *fdname
, Error
**errp
)
2668 Error
*local_err
= NULL
;
2670 if (!qemu_isdigit(fdname
[0]) && mon
) {
2671 fd
= monitor_get_fd(mon
, fdname
, &local_err
);
2673 fd
= qemu_parse_fd(fdname
);
2675 error_setg(&local_err
, "Invalid file descriptor number '%s'",
2680 error_propagate(errp
, local_err
);
2689 /* Please update hmp-commands.hx when adding or changing commands */
2690 static mon_cmd_t info_cmds
[] = {
2691 #include "hmp-commands-info.h"
2695 /* mon_cmds and info_cmds would be sorted at runtime */
2696 static mon_cmd_t mon_cmds
[] = {
2697 #include "hmp-commands.h"
2701 /*******************************************************************/
2703 static const char *pch
;
2704 static sigjmp_buf expr_env
;
2707 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2708 expr_error(Monitor
*mon
, const char *fmt
, ...)
2712 monitor_vprintf(mon
, fmt
, ap
);
2713 monitor_printf(mon
, "\n");
2715 siglongjmp(expr_env
, 1);
2718 /* return 0 if OK, -1 if not found */
2719 static int get_monitor_def(target_long
*pval
, const char *name
)
2721 const MonitorDef
*md
= target_monitor_defs();
2722 CPUState
*cs
= mon_get_cpu();
2727 if (cs
== NULL
|| md
== NULL
) {
2731 for(; md
->name
!= NULL
; md
++) {
2732 if (compare_cmd(name
, md
->name
)) {
2733 if (md
->get_value
) {
2734 *pval
= md
->get_value(md
, md
->offset
);
2736 CPUArchState
*env
= mon_get_cpu_env();
2737 ptr
= (uint8_t *)env
+ md
->offset
;
2740 *pval
= *(int32_t *)ptr
;
2743 *pval
= *(target_long
*)ptr
;
2754 ret
= target_get_monitor_def(cs
, name
, &tmp
);
2756 *pval
= (target_long
) tmp
;
2762 static void next(void)
2766 while (qemu_isspace(*pch
))
2771 static int64_t expr_sum(Monitor
*mon
);
2773 static int64_t expr_unary(Monitor
*mon
)
2782 n
= expr_unary(mon
);
2786 n
= -expr_unary(mon
);
2790 n
= ~expr_unary(mon
);
2796 expr_error(mon
, "')' expected");
2803 expr_error(mon
, "character constant expected");
2807 expr_error(mon
, "missing terminating \' character");
2817 while ((*pch
>= 'a' && *pch
<= 'z') ||
2818 (*pch
>= 'A' && *pch
<= 'Z') ||
2819 (*pch
>= '0' && *pch
<= '9') ||
2820 *pch
== '_' || *pch
== '.') {
2821 if ((q
- buf
) < sizeof(buf
) - 1)
2825 while (qemu_isspace(*pch
))
2828 ret
= get_monitor_def(®
, buf
);
2830 expr_error(mon
, "unknown register");
2835 expr_error(mon
, "unexpected end of expression");
2840 n
= strtoull(pch
, &p
, 0);
2841 if (errno
== ERANGE
) {
2842 expr_error(mon
, "number too large");
2845 expr_error(mon
, "invalid char '%c' in expression", *p
);
2848 while (qemu_isspace(*pch
))
2856 static int64_t expr_prod(Monitor
*mon
)
2861 val
= expr_unary(mon
);
2864 if (op
!= '*' && op
!= '/' && op
!= '%')
2867 val2
= expr_unary(mon
);
2876 expr_error(mon
, "division by zero");
2887 static int64_t expr_logic(Monitor
*mon
)
2892 val
= expr_prod(mon
);
2895 if (op
!= '&' && op
!= '|' && op
!= '^')
2898 val2
= expr_prod(mon
);
2915 static int64_t expr_sum(Monitor
*mon
)
2920 val
= expr_logic(mon
);
2923 if (op
!= '+' && op
!= '-')
2926 val2
= expr_logic(mon
);
2935 static int get_expr(Monitor
*mon
, int64_t *pval
, const char **pp
)
2938 if (sigsetjmp(expr_env
, 0)) {
2942 while (qemu_isspace(*pch
))
2944 *pval
= expr_sum(mon
);
2949 static int get_double(Monitor
*mon
, double *pval
, const char **pp
)
2951 const char *p
= *pp
;
2955 d
= strtod(p
, &tailp
);
2957 monitor_printf(mon
, "Number expected\n");
2960 if (d
!= d
|| d
- d
!= 0) {
2961 /* NaN or infinity */
2962 monitor_printf(mon
, "Bad number\n");
2971 * Store the command-name in cmdname, and return a pointer to
2972 * the remaining of the command string.
2974 static const char *get_command_name(const char *cmdline
,
2975 char *cmdname
, size_t nlen
)
2978 const char *p
, *pstart
;
2981 while (qemu_isspace(*p
))
2986 while (*p
!= '\0' && *p
!= '/' && !qemu_isspace(*p
))
2991 memcpy(cmdname
, pstart
, len
);
2992 cmdname
[len
] = '\0';
2997 * Read key of 'type' into 'key' and return the current
3000 static char *key_get_info(const char *type
, char **key
)
3008 p
= strchr(type
, ':');
3015 str
= g_malloc(len
+ 1);
3016 memcpy(str
, type
, len
);
3023 static int default_fmt_format
= 'x';
3024 static int default_fmt_size
= 4;
3026 static int is_valid_option(const char *c
, const char *typestr
)
3034 typestr
= strstr(typestr
, option
);
3035 return (typestr
!= NULL
);
3038 static const mon_cmd_t
*search_dispatch_table(const mon_cmd_t
*disp_table
,
3039 const char *cmdname
)
3041 const mon_cmd_t
*cmd
;
3043 for (cmd
= disp_table
; cmd
->name
!= NULL
; cmd
++) {
3044 if (compare_cmd(cmdname
, cmd
->name
)) {
3053 * Parse command name from @cmdp according to command table @table.
3054 * If blank, return NULL.
3055 * Else, if no valid command can be found, report to @mon, and return
3057 * Else, change @cmdp to point right behind the name, and return its
3058 * command table entry.
3059 * Do not assume the return value points into @table! It doesn't when
3060 * the command is found in a sub-command table.
3062 static const mon_cmd_t
*monitor_parse_command(Monitor
*mon
,
3063 const char *cmdp_start
,
3068 const mon_cmd_t
*cmd
;
3071 /* extract the command name */
3072 p
= get_command_name(*cmdp
, cmdname
, sizeof(cmdname
));
3076 cmd
= search_dispatch_table(table
, cmdname
);
3078 monitor_printf(mon
, "unknown command: '%.*s'\n",
3079 (int)(p
- cmdp_start
), cmdp_start
);
3082 if (runstate_check(RUN_STATE_PRECONFIG
) && !cmd_can_preconfig(cmd
)) {
3083 monitor_printf(mon
, "Command '%.*s' not available with -preconfig "
3084 "until after exit_preconfig.\n",
3085 (int)(p
- cmdp_start
), cmdp_start
);
3089 /* filter out following useless space */
3090 while (qemu_isspace(*p
)) {
3095 /* search sub command */
3096 if (cmd
->sub_table
!= NULL
&& *p
!= '\0') {
3097 return monitor_parse_command(mon
, cmdp_start
, cmdp
, cmd
->sub_table
);
3104 * Parse arguments for @cmd.
3105 * If it can't be parsed, report to @mon, and return NULL.
3106 * Else, insert command arguments into a QDict, and return it.
3107 * Note: On success, caller has to free the QDict structure.
3110 static QDict
*monitor_parse_arguments(Monitor
*mon
,
3112 const mon_cmd_t
*cmd
)
3114 const char *typestr
;
3117 const char *p
= *endp
;
3119 QDict
*qdict
= qdict_new();
3121 /* parse the parameters */
3122 typestr
= cmd
->args_type
;
3124 typestr
= key_get_info(typestr
, &key
);
3136 while (qemu_isspace(*p
))
3138 if (*typestr
== '?') {
3141 /* no optional string: NULL argument */
3145 ret
= get_str(buf
, sizeof(buf
), &p
);
3149 monitor_printf(mon
, "%s: filename expected\n",
3153 monitor_printf(mon
, "%s: block device name expected\n",
3157 monitor_printf(mon
, "%s: string expected\n", cmd
->name
);
3162 qdict_put_str(qdict
, key
, buf
);
3167 QemuOptsList
*opts_list
;
3170 opts_list
= qemu_find_opts(key
);
3171 if (!opts_list
|| opts_list
->desc
->name
) {
3174 while (qemu_isspace(*p
)) {
3179 if (get_str(buf
, sizeof(buf
), &p
) < 0) {
3182 opts
= qemu_opts_parse_noisily(opts_list
, buf
, true);
3186 qemu_opts_to_qdict(opts
, qdict
);
3187 qemu_opts_del(opts
);
3192 int count
, format
, size
;
3194 while (qemu_isspace(*p
))
3200 if (qemu_isdigit(*p
)) {
3202 while (qemu_isdigit(*p
)) {
3203 count
= count
* 10 + (*p
- '0');
3241 if (*p
!= '\0' && !qemu_isspace(*p
)) {
3242 monitor_printf(mon
, "invalid char in format: '%c'\n",
3247 format
= default_fmt_format
;
3248 if (format
!= 'i') {
3249 /* for 'i', not specifying a size gives -1 as size */
3251 size
= default_fmt_size
;
3252 default_fmt_size
= size
;
3254 default_fmt_format
= format
;
3257 format
= default_fmt_format
;
3258 if (format
!= 'i') {
3259 size
= default_fmt_size
;
3264 qdict_put_int(qdict
, "count", count
);
3265 qdict_put_int(qdict
, "format", format
);
3266 qdict_put_int(qdict
, "size", size
);
3275 while (qemu_isspace(*p
))
3277 if (*typestr
== '?' || *typestr
== '.') {
3278 if (*typestr
== '?') {
3286 while (qemu_isspace(*p
))
3295 if (get_expr(mon
, &val
, &p
))
3297 /* Check if 'i' is greater than 32-bit */
3298 if ((c
== 'i') && ((val
>> 32) & 0xffffffff)) {
3299 monitor_printf(mon
, "\'%s\' has failed: ", cmd
->name
);
3300 monitor_printf(mon
, "integer is for 32-bit values\n");
3302 } else if (c
== 'M') {
3304 monitor_printf(mon
, "enter a positive value\n");
3309 qdict_put_int(qdict
, key
, val
);
3318 while (qemu_isspace(*p
)) {
3321 if (*typestr
== '?') {
3327 ret
= qemu_strtosz_MiB(p
, &end
, &val
);
3328 if (ret
< 0 || val
> INT64_MAX
) {
3329 monitor_printf(mon
, "invalid size\n");
3332 qdict_put_int(qdict
, key
, val
);
3340 while (qemu_isspace(*p
))
3342 if (*typestr
== '?') {
3348 if (get_double(mon
, &val
, &p
) < 0) {
3351 if (p
[0] && p
[1] == 's') {
3354 val
/= 1e3
; p
+= 2; break;
3356 val
/= 1e6
; p
+= 2; break;
3358 val
/= 1e9
; p
+= 2; break;
3361 if (*p
&& !qemu_isspace(*p
)) {
3362 monitor_printf(mon
, "Unknown unit suffix\n");
3365 qdict_put(qdict
, key
, qnum_from_double(val
));
3373 while (qemu_isspace(*p
)) {
3377 while (qemu_isgraph(*p
)) {
3380 if (p
- beg
== 2 && !memcmp(beg
, "on", p
- beg
)) {
3382 } else if (p
- beg
== 3 && !memcmp(beg
, "off", p
- beg
)) {
3385 monitor_printf(mon
, "Expected 'on' or 'off'\n");
3388 qdict_put_bool(qdict
, key
, val
);
3393 const char *tmp
= p
;
3400 while (qemu_isspace(*p
))
3405 if(!is_valid_option(p
, typestr
)) {
3407 monitor_printf(mon
, "%s: unsupported option -%c\n",
3419 qdict_put_bool(qdict
, key
, true);
3426 /* package all remaining string */
3429 while (qemu_isspace(*p
)) {
3432 if (*typestr
== '?') {
3435 /* no remaining string: NULL argument */
3441 monitor_printf(mon
, "%s: string expected\n",
3445 qdict_put_str(qdict
, key
, p
);
3451 monitor_printf(mon
, "%s: unknown type '%c'\n", cmd
->name
, c
);
3457 /* check that all arguments were parsed */
3458 while (qemu_isspace(*p
))
3461 monitor_printf(mon
, "%s: extraneous characters at the end of line\n",
3469 qobject_unref(qdict
);
3474 static void handle_hmp_command(Monitor
*mon
, const char *cmdline
)
3477 const mon_cmd_t
*cmd
;
3478 const char *cmd_start
= cmdline
;
3480 trace_handle_hmp_command(mon
, cmdline
);
3482 cmd
= monitor_parse_command(mon
, cmdline
, &cmdline
, mon
->cmd_table
);
3487 qdict
= monitor_parse_arguments(mon
, &cmdline
, cmd
);
3489 while (cmdline
> cmd_start
&& qemu_isspace(cmdline
[-1])) {
3492 monitor_printf(mon
, "Try \"help %.*s\" for more information\n",
3493 (int)(cmdline
- cmd_start
), cmd_start
);
3497 cmd
->cmd(mon
, qdict
);
3498 qobject_unref(qdict
);
3501 static void cmd_completion(Monitor
*mon
, const char *name
, const char *list
)
3503 const char *p
, *pstart
;
3510 p
= qemu_strchrnul(p
, '|');
3512 if (len
> sizeof(cmd
) - 2)
3513 len
= sizeof(cmd
) - 2;
3514 memcpy(cmd
, pstart
, len
);
3516 if (name
[0] == '\0' || !strncmp(name
, cmd
, strlen(name
))) {
3517 readline_add_completion(mon
->rs
, cmd
);
3525 static void file_completion(Monitor
*mon
, const char *input
)
3530 char file
[1024], file_prefix
[1024];
3534 p
= strrchr(input
, '/');
3537 pstrcpy(file_prefix
, sizeof(file_prefix
), input
);
3538 pstrcpy(path
, sizeof(path
), ".");
3540 input_path_len
= p
- input
+ 1;
3541 memcpy(path
, input
, input_path_len
);
3542 if (input_path_len
> sizeof(path
) - 1)
3543 input_path_len
= sizeof(path
) - 1;
3544 path
[input_path_len
] = '\0';
3545 pstrcpy(file_prefix
, sizeof(file_prefix
), p
+ 1);
3548 ffs
= opendir(path
);
3557 if (strcmp(d
->d_name
, ".") == 0 || strcmp(d
->d_name
, "..") == 0) {
3561 if (strstart(d
->d_name
, file_prefix
, NULL
)) {
3562 memcpy(file
, input
, input_path_len
);
3563 if (input_path_len
< sizeof(file
))
3564 pstrcpy(file
+ input_path_len
, sizeof(file
) - input_path_len
,
3566 /* stat the file to find out if it's a directory.
3567 * In that case add a slash to speed up typing long paths
3569 if (stat(file
, &sb
) == 0 && S_ISDIR(sb
.st_mode
)) {
3570 pstrcat(file
, sizeof(file
), "/");
3572 readline_add_completion(mon
->rs
, file
);
3578 static const char *next_arg_type(const char *typestr
)
3580 const char *p
= strchr(typestr
, ':');
3581 return (p
!= NULL
? ++p
: typestr
);
3584 static void add_completion_option(ReadLineState
*rs
, const char *str
,
3587 if (!str
|| !option
) {
3590 if (!strncmp(option
, str
, strlen(str
))) {
3591 readline_add_completion(rs
, option
);
3595 void chardev_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3598 ChardevBackendInfoList
*list
, *start
;
3604 readline_set_completion_index(rs
, len
);
3606 start
= list
= qmp_query_chardev_backends(NULL
);
3608 const char *chr_name
= list
->value
->name
;
3610 if (!strncmp(chr_name
, str
, len
)) {
3611 readline_add_completion(rs
, chr_name
);
3615 qapi_free_ChardevBackendInfoList(start
);
3618 void netdev_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3627 readline_set_completion_index(rs
, len
);
3628 for (i
= 0; i
< NET_CLIENT_DRIVER__MAX
; i
++) {
3629 add_completion_option(rs
, str
, NetClientDriver_str(i
));
3633 void device_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3643 readline_set_completion_index(rs
, len
);
3644 list
= elt
= object_class_get_list(TYPE_DEVICE
, false);
3647 DeviceClass
*dc
= OBJECT_CLASS_CHECK(DeviceClass
, elt
->data
,
3649 name
= object_class_get_name(OBJECT_CLASS(dc
));
3651 if (dc
->user_creatable
3652 && !strncmp(name
, str
, len
)) {
3653 readline_add_completion(rs
, name
);
3660 void object_add_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3670 readline_set_completion_index(rs
, len
);
3671 list
= elt
= object_class_get_list(TYPE_USER_CREATABLE
, false);
3675 name
= object_class_get_name(OBJECT_CLASS(elt
->data
));
3676 if (!strncmp(name
, str
, len
) && strcmp(name
, TYPE_USER_CREATABLE
)) {
3677 readline_add_completion(rs
, name
);
3684 static void peripheral_device_del_completion(ReadLineState
*rs
,
3685 const char *str
, size_t len
)
3687 Object
*peripheral
= container_get(qdev_get_machine(), "/peripheral");
3688 GSList
*list
, *item
;
3690 list
= qdev_build_hotpluggable_device_list(peripheral
);
3695 for (item
= list
; item
; item
= g_slist_next(item
)) {
3696 DeviceState
*dev
= item
->data
;
3698 if (dev
->id
&& !strncmp(str
, dev
->id
, len
)) {
3699 readline_add_completion(rs
, dev
->id
);
3706 void chardev_remove_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3709 ChardevInfoList
*list
, *start
;
3715 readline_set_completion_index(rs
, len
);
3717 start
= list
= qmp_query_chardev(NULL
);
3719 ChardevInfo
*chr
= list
->value
;
3721 if (!strncmp(chr
->label
, str
, len
)) {
3722 readline_add_completion(rs
, chr
->label
);
3726 qapi_free_ChardevInfoList(start
);
3729 static void ringbuf_completion(ReadLineState
*rs
, const char *str
)
3732 ChardevInfoList
*list
, *start
;
3735 readline_set_completion_index(rs
, len
);
3737 start
= list
= qmp_query_chardev(NULL
);
3739 ChardevInfo
*chr_info
= list
->value
;
3741 if (!strncmp(chr_info
->label
, str
, len
)) {
3742 Chardev
*chr
= qemu_chr_find(chr_info
->label
);
3743 if (chr
&& CHARDEV_IS_RINGBUF(chr
)) {
3744 readline_add_completion(rs
, chr_info
->label
);
3749 qapi_free_ChardevInfoList(start
);
3752 void ringbuf_write_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3757 ringbuf_completion(rs
, str
);
3760 void device_del_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3769 readline_set_completion_index(rs
, len
);
3770 peripheral_device_del_completion(rs
, str
, len
);
3773 void object_del_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3775 ObjectPropertyInfoList
*list
, *start
;
3782 readline_set_completion_index(rs
, len
);
3784 start
= list
= qmp_qom_list("/objects", NULL
);
3786 ObjectPropertyInfo
*info
= list
->value
;
3788 if (!strncmp(info
->type
, "child<", 5)
3789 && !strncmp(info
->name
, str
, len
)) {
3790 readline_add_completion(rs
, info
->name
);
3794 qapi_free_ObjectPropertyInfoList(start
);
3797 void sendkey_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3806 sep
= strrchr(str
, '-');
3811 readline_set_completion_index(rs
, len
);
3812 for (i
= 0; i
< Q_KEY_CODE__MAX
; i
++) {
3813 if (!strncmp(str
, QKeyCode_str(i
), len
)) {
3814 readline_add_completion(rs
, QKeyCode_str(i
));
3819 void set_link_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3824 readline_set_completion_index(rs
, len
);
3826 NetClientState
*ncs
[MAX_QUEUE_NUM
];
3828 count
= qemu_find_net_clients_except(NULL
, ncs
,
3829 NET_CLIENT_DRIVER_NONE
,
3831 for (i
= 0; i
< MIN(count
, MAX_QUEUE_NUM
); i
++) {
3832 const char *name
= ncs
[i
]->name
;
3833 if (!strncmp(str
, name
, len
)) {
3834 readline_add_completion(rs
, name
);
3837 } else if (nb_args
== 3) {
3838 add_completion_option(rs
, str
, "on");
3839 add_completion_option(rs
, str
, "off");
3843 void netdev_del_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3846 NetClientState
*ncs
[MAX_QUEUE_NUM
];
3853 readline_set_completion_index(rs
, len
);
3854 count
= qemu_find_net_clients_except(NULL
, ncs
, NET_CLIENT_DRIVER_NIC
,
3856 for (i
= 0; i
< MIN(count
, MAX_QUEUE_NUM
); i
++) {
3858 const char *name
= ncs
[i
]->name
;
3859 if (strncmp(str
, name
, len
)) {
3862 opts
= qemu_opts_find(qemu_find_opts_err("netdev", NULL
), name
);
3864 readline_add_completion(rs
, name
);
3869 void info_trace_events_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3874 readline_set_completion_index(rs
, len
);
3876 TraceEventIter iter
;
3878 char *pattern
= g_strdup_printf("%s*", str
);
3879 trace_event_iter_init(&iter
, pattern
);
3880 while ((ev
= trace_event_iter_next(&iter
)) != NULL
) {
3881 readline_add_completion(rs
, trace_event_get_name(ev
));
3887 void trace_event_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3892 readline_set_completion_index(rs
, len
);
3894 TraceEventIter iter
;
3896 char *pattern
= g_strdup_printf("%s*", str
);
3897 trace_event_iter_init(&iter
, pattern
);
3898 while ((ev
= trace_event_iter_next(&iter
)) != NULL
) {
3899 readline_add_completion(rs
, trace_event_get_name(ev
));
3902 } else if (nb_args
== 3) {
3903 add_completion_option(rs
, str
, "on");
3904 add_completion_option(rs
, str
, "off");
3908 void watchdog_action_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
3915 readline_set_completion_index(rs
, strlen(str
));
3916 for (i
= 0; i
< WATCHDOG_ACTION__MAX
; i
++) {
3917 add_completion_option(rs
, str
, WatchdogAction_str(i
));
3921 void migrate_set_capability_completion(ReadLineState
*rs
, int nb_args
,
3927 readline_set_completion_index(rs
, len
);
3930 for (i
= 0; i
< MIGRATION_CAPABILITY__MAX
; i
++) {
3931 const char *name
= MigrationCapability_str(i
);
3932 if (!strncmp(str
, name
, len
)) {
3933 readline_add_completion(rs
, name
);
3936 } else if (nb_args
== 3) {
3937 add_completion_option(rs
, str
, "on");
3938 add_completion_option(rs
, str
, "off");
3942 void migrate_set_parameter_completion(ReadLineState
*rs
, int nb_args
,
3948 readline_set_completion_index(rs
, len
);
3951 for (i
= 0; i
< MIGRATION_PARAMETER__MAX
; i
++) {
3952 const char *name
= MigrationParameter_str(i
);
3953 if (!strncmp(str
, name
, len
)) {
3954 readline_add_completion(rs
, name
);
3960 static void vm_completion(ReadLineState
*rs
, const char *str
)
3963 BlockDriverState
*bs
;
3964 BdrvNextIterator it
;
3967 readline_set_completion_index(rs
, len
);
3969 for (bs
= bdrv_first(&it
); bs
; bs
= bdrv_next(&it
)) {
3970 SnapshotInfoList
*snapshots
, *snapshot
;
3971 AioContext
*ctx
= bdrv_get_aio_context(bs
);
3974 aio_context_acquire(ctx
);
3975 if (bdrv_can_snapshot(bs
)) {
3976 ok
= bdrv_query_snapshot_info_list(bs
, &snapshots
, NULL
) == 0;
3978 aio_context_release(ctx
);
3983 snapshot
= snapshots
;
3985 char *completion
= snapshot
->value
->name
;
3986 if (!strncmp(str
, completion
, len
)) {
3987 readline_add_completion(rs
, completion
);
3989 completion
= snapshot
->value
->id
;
3990 if (!strncmp(str
, completion
, len
)) {
3991 readline_add_completion(rs
, completion
);
3993 snapshot
= snapshot
->next
;
3995 qapi_free_SnapshotInfoList(snapshots
);
4000 void delvm_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
4003 vm_completion(rs
, str
);
4007 void loadvm_completion(ReadLineState
*rs
, int nb_args
, const char *str
)
4010 vm_completion(rs
, str
);
4014 static void monitor_find_completion_by_table(Monitor
*mon
,
4015 const mon_cmd_t
*cmd_table
,
4019 const char *cmdname
;
4021 const char *ptype
, *old_ptype
, *str
, *name
;
4022 const mon_cmd_t
*cmd
;
4023 BlockBackend
*blk
= NULL
;
4026 /* command completion */
4031 readline_set_completion_index(mon
->rs
, strlen(cmdname
));
4032 for (cmd
= cmd_table
; cmd
->name
!= NULL
; cmd
++) {
4033 if (!runstate_check(RUN_STATE_PRECONFIG
) ||
4034 cmd_can_preconfig(cmd
)) {
4035 cmd_completion(mon
, cmdname
, cmd
->name
);
4039 /* find the command */
4040 for (cmd
= cmd_table
; cmd
->name
!= NULL
; cmd
++) {
4041 if (compare_cmd(args
[0], cmd
->name
) &&
4042 (!runstate_check(RUN_STATE_PRECONFIG
) ||
4043 cmd_can_preconfig(cmd
))) {
4051 if (cmd
->sub_table
) {
4052 /* do the job again */
4053 monitor_find_completion_by_table(mon
, cmd
->sub_table
,
4054 &args
[1], nb_args
- 1);
4057 if (cmd
->command_completion
) {
4058 cmd
->command_completion(mon
->rs
, nb_args
, args
[nb_args
- 1]);
4062 ptype
= next_arg_type(cmd
->args_type
);
4063 for(i
= 0; i
< nb_args
- 2; i
++) {
4064 if (*ptype
!= '\0') {
4065 ptype
= next_arg_type(ptype
);
4066 while (*ptype
== '?')
4067 ptype
= next_arg_type(ptype
);
4070 str
= args
[nb_args
- 1];
4072 while (*ptype
== '-' && old_ptype
!= ptype
) {
4074 ptype
= next_arg_type(ptype
);
4078 /* file completion */
4079 readline_set_completion_index(mon
->rs
, strlen(str
));
4080 file_completion(mon
, str
);
4083 /* block device name completion */
4084 readline_set_completion_index(mon
->rs
, strlen(str
));
4085 while ((blk
= blk_next(blk
)) != NULL
) {
4086 name
= blk_name(blk
);
4087 if (str
[0] == '\0' ||
4088 !strncmp(name
, str
, strlen(str
))) {
4089 readline_add_completion(mon
->rs
, name
);
4095 if (!strcmp(cmd
->name
, "help|?")) {
4096 monitor_find_completion_by_table(mon
, cmd_table
,
4097 &args
[1], nb_args
- 1);
4106 static void monitor_find_completion(void *opaque
,
4107 const char *cmdline
)
4109 Monitor
*mon
= opaque
;
4110 char *args
[MAX_ARGS
];
4113 /* 1. parse the cmdline */
4114 if (parse_cmdline(cmdline
, &nb_args
, args
) < 0) {
4118 /* if the line ends with a space, it means we want to complete the
4120 len
= strlen(cmdline
);
4121 if (len
> 0 && qemu_isspace(cmdline
[len
- 1])) {
4122 if (nb_args
>= MAX_ARGS
) {
4125 args
[nb_args
++] = g_strdup("");
4128 /* 2. auto complete according to args */
4129 monitor_find_completion_by_table(mon
, mon
->cmd_table
, args
, nb_args
);
4132 free_cmdline_args(args
, nb_args
);
4135 static int monitor_can_read(void *opaque
)
4137 Monitor
*mon
= opaque
;
4139 return !atomic_mb_read(&mon
->suspend_cnt
);
4143 * 1. This function takes ownership of rsp, err, and id.
4144 * 2. rsp, err, and id may be NULL.
4145 * 3. If err != NULL then rsp must be NULL.
4147 static void monitor_qmp_respond(Monitor
*mon
, QObject
*rsp
,
4148 Error
*err
, QObject
*id
)
4150 QDict
*qdict
= NULL
;
4154 qdict
= qdict_new();
4155 qdict_put_obj(qdict
, "error", qmp_build_error_object(err
));
4157 rsp
= QOBJECT(qdict
);
4162 qdict_put_obj(qobject_to(QDict
, rsp
), "id", qobject_ref(id
));
4165 monitor_json_emitter(mon
, rsp
);
4173 * Dispatch one single QMP request. The function will free the req_obj
4174 * and objects inside it before return.
4176 static void monitor_qmp_dispatch_one(QMPRequest
*req_obj
)
4178 Monitor
*mon
, *old_mon
;
4179 QObject
*req
, *rsp
= NULL
, *id
;
4185 need_resume
= req_obj
->need_resume
;
4189 if (trace_event_get_state_backends(TRACE_HANDLE_QMP_COMMAND
)) {
4190 QString
*req_json
= qobject_to_json(req
);
4191 trace_handle_qmp_command(mon
, qstring_get_str(req_json
));
4192 qobject_unref(req_json
);
4198 rsp
= qmp_dispatch(mon
->qmp
.commands
, req
);
4202 /* Respond if necessary */
4203 monitor_qmp_respond(mon
, rsp
, NULL
, id
);
4205 /* This pairs with the monitor_suspend() in handle_qmp_command(). */
4207 monitor_resume(mon
);
4214 * Pop one QMP request from monitor queues, return NULL if not found.
4215 * We are using round-robin fashion to pop the request, to avoid
4216 * processing commands only on a very busy monitor. To achieve that,
4217 * when we process one request on a specific monitor, we put that
4218 * monitor to the end of mon_list queue.
4220 static QMPRequest
*monitor_qmp_requests_pop_any(void)
4222 QMPRequest
*req_obj
= NULL
;
4225 qemu_mutex_lock(&monitor_lock
);
4227 QTAILQ_FOREACH(mon
, &mon_list
, entry
) {
4228 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
4229 req_obj
= g_queue_pop_head(mon
->qmp
.qmp_requests
);
4230 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
4238 * We found one request on the monitor. Degrade this monitor's
4239 * priority to lowest by re-inserting it to end of queue.
4241 QTAILQ_REMOVE(&mon_list
, mon
, entry
);
4242 QTAILQ_INSERT_TAIL(&mon_list
, mon
, entry
);
4245 qemu_mutex_unlock(&monitor_lock
);
4250 static void monitor_qmp_bh_dispatcher(void *data
)
4252 QMPRequest
*req_obj
= monitor_qmp_requests_pop_any();
4255 trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj
->id
) ?: "");
4256 monitor_qmp_dispatch_one(req_obj
);
4257 /* Reschedule instead of looping so the main loop stays responsive */
4258 qemu_bh_schedule(mon_global
.qmp_dispatcher_bh
);
4262 #define QMP_REQ_QUEUE_LEN_MAX (8)
4264 static void handle_qmp_command(JSONMessageParser
*parser
, GQueue
*tokens
)
4266 QObject
*req
, *id
= NULL
;
4267 QDict
*qdict
= NULL
;
4268 MonitorQMP
*mon_qmp
= container_of(parser
, MonitorQMP
, parser
);
4269 Monitor
*mon
= container_of(mon_qmp
, Monitor
, qmp
);
4271 QMPRequest
*req_obj
;
4273 req
= json_parser_parse_err(tokens
, NULL
, &err
);
4275 /* json_parser_parse_err() sucks: can fail without setting @err */
4276 error_setg(&err
, QERR_JSON_PARSING
);
4282 /* Check against the request in general layout */
4283 qdict
= qmp_dispatch_check_obj(req
, &err
);
4288 /* Check against OOB specific */
4289 if (!qmp_cmd_oob_check(mon
, qdict
, &err
)) {
4293 id
= qdict_get(qdict
, "id");
4295 /* When OOB is enabled, the "id" field is mandatory. */
4296 if (qmp_oob_enabled(mon
) && !id
) {
4297 error_setg(&err
, "Out-of-band capability requires that "
4298 "every command contains an 'id' field");
4302 req_obj
= g_new0(QMPRequest
, 1);
4304 req_obj
->id
= qobject_ref(id
);
4306 req_obj
->need_resume
= false;
4308 qdict_del(qdict
, "id");
4310 if (qmp_is_oob(qdict
)) {
4311 /* Out-of-band (OOB) requests are executed directly in parser. */
4312 trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(req_obj
->id
)
4314 monitor_qmp_dispatch_one(req_obj
);
4318 /* Protect qmp_requests and fetching its length. */
4319 qemu_mutex_lock(&mon
->qmp
.qmp_queue_lock
);
4322 * If OOB is not enabled on the current monitor, we'll emulate the
4323 * old behavior that we won't process the current monitor any more
4324 * until it has responded. This helps make sure that as long as
4325 * OOB is not enabled, the server will never drop any command.
4327 if (!qmp_oob_enabled(mon
)) {
4328 monitor_suspend(mon
);
4329 req_obj
->need_resume
= true;
4331 /* Drop the request if queue is full. */
4332 if (mon
->qmp
.qmp_requests
->length
>= QMP_REQ_QUEUE_LEN_MAX
) {
4333 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
4334 qapi_event_send_command_dropped(id
,
4335 COMMAND_DROP_REASON_QUEUE_FULL
,
4337 qmp_request_free(req_obj
);
4343 * Put the request to the end of queue so that requests will be
4344 * handled in time order. Ownership for req_obj, req, id,
4345 * etc. will be delivered to the handler side.
4347 g_queue_push_tail(mon
->qmp
.qmp_requests
, req_obj
);
4348 qemu_mutex_unlock(&mon
->qmp
.qmp_queue_lock
);
4350 /* Kick the dispatcher routine */
4351 qemu_bh_schedule(mon_global
.qmp_dispatcher_bh
);
4355 monitor_qmp_respond(mon
, NULL
, err
, NULL
);
4359 static void monitor_qmp_read(void *opaque
, const uint8_t *buf
, int size
)
4361 Monitor
*mon
= opaque
;
4363 json_message_parser_feed(&mon
->qmp
.parser
, (const char *) buf
, size
);
4366 static void monitor_read(void *opaque
, const uint8_t *buf
, int size
)
4368 Monitor
*old_mon
= cur_mon
;
4374 for (i
= 0; i
< size
; i
++)
4375 readline_handle_byte(cur_mon
->rs
, buf
[i
]);
4377 if (size
== 0 || buf
[size
- 1] != 0)
4378 monitor_printf(cur_mon
, "corrupted command\n");
4380 handle_hmp_command(cur_mon
, (char *)buf
);
4386 static void monitor_command_cb(void *opaque
, const char *cmdline
,
4387 void *readline_opaque
)
4389 Monitor
*mon
= opaque
;
4391 monitor_suspend(mon
);
4392 handle_hmp_command(mon
, cmdline
);
4393 monitor_resume(mon
);
4396 int monitor_suspend(Monitor
*mon
)
4398 if (monitor_is_hmp_non_interactive(mon
)) {
4402 atomic_inc(&mon
->suspend_cnt
);
4404 if (monitor_is_qmp(mon
)) {
4406 * Kick iothread to make sure this takes effect. It'll be
4407 * evaluated again in prepare() of the watch object.
4409 aio_notify(iothread_get_aio_context(mon_global
.mon_iothread
));
4412 trace_monitor_suspend(mon
, 1);
4416 void monitor_resume(Monitor
*mon
)
4418 if (monitor_is_hmp_non_interactive(mon
)) {
4422 if (atomic_dec_fetch(&mon
->suspend_cnt
) == 0) {
4423 if (monitor_is_qmp(mon
)) {
4425 * For QMP monitors that are running in IOThread, let's
4426 * kick the thread in case it's sleeping.
4428 if (mon
->use_io_thr
) {
4429 aio_notify(iothread_get_aio_context(mon_global
.mon_iothread
));
4433 readline_show_prompt(mon
->rs
);
4436 trace_monitor_suspend(mon
, -1);
4439 static QObject
*get_qmp_greeting(Monitor
*mon
)
4441 QList
*cap_list
= qlist_new();
4442 QObject
*ver
= NULL
;
4445 qmp_marshal_query_version(NULL
, &ver
, NULL
);
4447 for (cap
= 0; cap
< QMP_CAPABILITY__MAX
; cap
++) {
4448 if (!mon
->use_io_thr
&& cap
== QMP_CAPABILITY_OOB
) {
4449 /* Monitors that are not using IOThread won't support OOB */
4452 qlist_append_str(cap_list
, QMPCapability_str(cap
));
4455 return qobject_from_jsonf("{'QMP': {'version': %p, 'capabilities': %p}}",
4459 static void monitor_qmp_caps_reset(Monitor
*mon
)
4461 memset(mon
->qmp
.qmp_caps
, 0, sizeof(mon
->qmp
.qmp_caps
));
4464 static void monitor_qmp_event(void *opaque
, int event
)
4467 Monitor
*mon
= opaque
;
4470 case CHR_EVENT_OPENED
:
4471 mon
->qmp
.commands
= &qmp_cap_negotiation_commands
;
4472 monitor_qmp_caps_reset(mon
);
4473 data
= get_qmp_greeting(mon
);
4474 monitor_json_emitter(mon
, data
);
4475 qobject_unref(data
);
4478 case CHR_EVENT_CLOSED
:
4480 * Note: this is only useful when the output of the chardev
4481 * backend is still open. For example, when the backend is
4482 * stdio, it's possible that stdout is still open when stdin
4485 monitor_qmp_response_flush(mon
);
4486 monitor_qmp_cleanup_queues(mon
);
4487 json_message_parser_destroy(&mon
->qmp
.parser
);
4488 json_message_parser_init(&mon
->qmp
.parser
, handle_qmp_command
);
4490 monitor_fdsets_cleanup();
4495 static void monitor_event(void *opaque
, int event
)
4497 Monitor
*mon
= opaque
;
4500 case CHR_EVENT_MUX_IN
:
4501 qemu_mutex_lock(&mon
->mon_lock
);
4503 qemu_mutex_unlock(&mon
->mon_lock
);
4504 if (mon
->reset_seen
) {
4505 readline_restart(mon
->rs
);
4506 monitor_resume(mon
);
4509 atomic_mb_set(&mon
->suspend_cnt
, 0);
4513 case CHR_EVENT_MUX_OUT
:
4514 if (mon
->reset_seen
) {
4515 if (atomic_mb_read(&mon
->suspend_cnt
) == 0) {
4516 monitor_printf(mon
, "\n");
4519 monitor_suspend(mon
);
4521 atomic_inc(&mon
->suspend_cnt
);
4523 qemu_mutex_lock(&mon
->mon_lock
);
4525 qemu_mutex_unlock(&mon
->mon_lock
);
4528 case CHR_EVENT_OPENED
:
4529 monitor_printf(mon
, "QEMU %s monitor - type 'help' for more "
4530 "information\n", QEMU_VERSION
);
4531 if (!mon
->mux_out
) {
4532 readline_restart(mon
->rs
);
4533 readline_show_prompt(mon
->rs
);
4535 mon
->reset_seen
= 1;
4539 case CHR_EVENT_CLOSED
:
4541 monitor_fdsets_cleanup();
4547 compare_mon_cmd(const void *a
, const void *b
)
4549 return strcmp(((const mon_cmd_t
*)a
)->name
,
4550 ((const mon_cmd_t
*)b
)->name
);
4553 static void sortcmdlist(void)
4556 int elem_size
= sizeof(mon_cmd_t
);
4558 array_num
= sizeof(mon_cmds
)/elem_size
-1;
4559 qsort((void *)mon_cmds
, array_num
, elem_size
, compare_mon_cmd
);
4561 array_num
= sizeof(info_cmds
)/elem_size
-1;
4562 qsort((void *)info_cmds
, array_num
, elem_size
, compare_mon_cmd
);
4565 static GMainContext
*monitor_get_io_context(void)
4567 return iothread_get_g_main_context(mon_global
.mon_iothread
);
4570 static AioContext
*monitor_get_aio_context(void)
4572 return iothread_get_aio_context(mon_global
.mon_iothread
);
4575 static void monitor_iothread_init(void)
4577 mon_global
.mon_iothread
= iothread_create("mon_iothread",
4581 * This MUST be on main loop thread since we have commands that
4582 * have assumption to be run on main loop thread. It would be
4583 * nice that one day we can remove this assumption in the future.
4585 mon_global
.qmp_dispatcher_bh
= aio_bh_new(iohandler_get_aio_context(),
4586 monitor_qmp_bh_dispatcher
,
4590 * Unlike the dispatcher BH, this must be run on the monitor IO
4591 * thread, so that monitors that are using IO thread will make
4592 * sure read/write operations are all done on the IO thread.
4594 mon_global
.qmp_respond_bh
= aio_bh_new(monitor_get_aio_context(),
4595 monitor_qmp_bh_responder
,
4599 void monitor_init_globals(void)
4601 monitor_init_qmp_commands();
4602 monitor_qapi_event_init();
4604 qemu_mutex_init(&monitor_lock
);
4605 qemu_mutex_init(&mon_fdsets_lock
);
4606 monitor_iothread_init();
4609 /* These functions just adapt the readline interface in a typesafe way. We
4610 * could cast function pointers but that discards compiler checks.
4612 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque
,
4613 const char *fmt
, ...)
4617 monitor_vprintf(opaque
, fmt
, ap
);
4621 static void monitor_readline_flush(void *opaque
)
4623 monitor_flush(opaque
);
4627 * Print to current monitor if we have one, else to stderr.
4628 * TODO should return int, so callers can calculate width, but that
4629 * requires surgery to monitor_vprintf(). Left for another day.
4631 void error_vprintf(const char *fmt
, va_list ap
)
4633 if (cur_mon
&& !monitor_cur_is_qmp()) {
4634 monitor_vprintf(cur_mon
, fmt
, ap
);
4636 vfprintf(stderr
, fmt
, ap
);
4640 void error_vprintf_unless_qmp(const char *fmt
, va_list ap
)
4642 if (cur_mon
&& !monitor_cur_is_qmp()) {
4643 monitor_vprintf(cur_mon
, fmt
, ap
);
4644 } else if (!cur_mon
) {
4645 vfprintf(stderr
, fmt
, ap
);
4649 static void monitor_list_append(Monitor
*mon
)
4651 qemu_mutex_lock(&monitor_lock
);
4652 QTAILQ_INSERT_HEAD(&mon_list
, mon
, entry
);
4653 qemu_mutex_unlock(&monitor_lock
);
4656 static void monitor_qmp_setup_handlers_bh(void *opaque
)
4658 Monitor
*mon
= opaque
;
4659 GMainContext
*context
;
4661 if (mon
->use_io_thr
) {
4663 * When use_io_thr is set, we use the global shared dedicated
4664 * IO thread for this monitor to handle input/output.
4666 context
= monitor_get_io_context();
4667 /* We should have inited globals before reaching here. */
4670 /* The default main loop, which is the main thread */
4674 qemu_chr_fe_set_handlers(&mon
->chr
, monitor_can_read
, monitor_qmp_read
,
4675 monitor_qmp_event
, NULL
, mon
, context
, true);
4676 monitor_list_append(mon
);
4679 void monitor_init(Chardev
*chr
, int flags
)
4681 Monitor
*mon
= g_malloc(sizeof(*mon
));
4682 bool use_readline
= flags
& MONITOR_USE_READLINE
;
4683 bool use_oob
= flags
& MONITOR_USE_OOB
;
4686 if (CHARDEV_IS_MUX(chr
)) {
4687 error_report("Monitor out-of-band is not supported with "
4688 "MUX typed chardev backend");
4692 error_report("Monitor out-of-band is only supported by QMP");
4697 monitor_data_init(mon
, false, use_oob
);
4699 qemu_chr_fe_init(&mon
->chr
, chr
, &error_abort
);
4702 mon
->rs
= readline_init(monitor_readline_printf
,
4703 monitor_readline_flush
,
4705 monitor_find_completion
);
4706 monitor_read_command(mon
, 0);
4709 if (monitor_is_qmp(mon
)) {
4710 qemu_chr_fe_set_echo(&mon
->chr
, true);
4711 json_message_parser_init(&mon
->qmp
.parser
, handle_qmp_command
);
4712 if (mon
->use_io_thr
) {
4714 * Make sure the old iowatch is gone. It's possible when
4715 * e.g. the chardev is in client mode, with wait=on.
4717 remove_fd_in_watch(chr
);
4719 * We can't call qemu_chr_fe_set_handlers() directly here
4720 * since during the procedure the chardev will be active
4721 * and running in monitor iothread, while we'll still do
4722 * something before returning from it, which is a possible
4723 * race too. To avoid that, we just create a BH to setup
4726 aio_bh_schedule_oneshot(monitor_get_aio_context(),
4727 monitor_qmp_setup_handlers_bh
, mon
);
4728 /* We'll add this to mon_list in the BH when setup done */
4731 qemu_chr_fe_set_handlers(&mon
->chr
, monitor_can_read
,
4732 monitor_qmp_read
, monitor_qmp_event
,
4733 NULL
, mon
, NULL
, true);
4736 qemu_chr_fe_set_handlers(&mon
->chr
, monitor_can_read
, monitor_read
,
4737 monitor_event
, NULL
, mon
, NULL
, true);
4740 monitor_list_append(mon
);
4743 void monitor_cleanup(void)
4745 Monitor
*mon
, *next
;
4748 * We need to explicitly stop the iothread (but not destroy it),
4749 * cleanup the monitor resources, then destroy the iothread since
4750 * we need to unregister from chardev below in
4751 * monitor_data_destroy(), and chardev is not thread-safe yet
4753 iothread_stop(mon_global
.mon_iothread
);
4756 * After we have IOThread to send responses, it's possible that
4757 * when we stop the IOThread there are still replies queued in the
4758 * responder queue. Flush all of them. Note that even after this
4759 * flush it's still possible that out buffer is not flushed.
4760 * It'll be done in below monitor_flush() as the last resort.
4762 monitor_qmp_bh_responder(NULL
);
4764 qemu_mutex_lock(&monitor_lock
);
4765 QTAILQ_FOREACH_SAFE(mon
, &mon_list
, entry
, next
) {
4766 QTAILQ_REMOVE(&mon_list
, mon
, entry
);
4768 monitor_data_destroy(mon
);
4771 qemu_mutex_unlock(&monitor_lock
);
4773 /* QEMUBHs needs to be deleted before destroying the IOThread. */
4774 qemu_bh_delete(mon_global
.qmp_dispatcher_bh
);
4775 mon_global
.qmp_dispatcher_bh
= NULL
;
4776 qemu_bh_delete(mon_global
.qmp_respond_bh
);
4777 mon_global
.qmp_respond_bh
= NULL
;
4779 iothread_destroy(mon_global
.mon_iothread
);
4780 mon_global
.mon_iothread
= NULL
;
4783 QemuOptsList qemu_mon_opts
= {
4785 .implied_opt_name
= "chardev",
4786 .head
= QTAILQ_HEAD_INITIALIZER(qemu_mon_opts
.head
),
4790 .type
= QEMU_OPT_STRING
,
4793 .type
= QEMU_OPT_STRING
,
4796 .type
= QEMU_OPT_BOOL
,
4799 .type
= QEMU_OPT_BOOL
,
4801 { /* end of list */ }
4806 void qmp_rtc_reset_reinjection(Error
**errp
)
4808 error_setg(errp
, QERR_FEATURE_DISABLED
, "rtc-reset-reinjection");
4811 SevInfo
*qmp_query_sev(Error
**errp
)
4813 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-sev");
4817 SevLaunchMeasureInfo
*qmp_query_sev_launch_measure(Error
**errp
)
4819 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-sev-launch-measure");
4823 SevCapability
*qmp_query_sev_capabilities(Error
**errp
)
4825 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-sev-capabilities");
4830 #ifndef TARGET_S390X
4831 void qmp_dump_skeys(const char *filename
, Error
**errp
)
4833 error_setg(errp
, QERR_FEATURE_DISABLED
, "dump-skeys");
4838 GICCapabilityList
*qmp_query_gic_capabilities(Error
**errp
)
4840 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-gic-capabilities");
4845 HotpluggableCPUList
*qmp_query_hotpluggable_cpus(Error
**errp
)
4847 MachineState
*ms
= MACHINE(qdev_get_machine());
4848 MachineClass
*mc
= MACHINE_GET_CLASS(ms
);
4850 if (!mc
->has_hotpluggable_cpus
) {
4851 error_setg(errp
, QERR_FEATURE_DISABLED
, "query-hotpluggable-cpus");
4855 return machine_query_hotpluggable_cpus(ms
);