hw/net: fix mcf_fec driver receiver
[qemu.git] / qdev-monitor.c
1 /*
2 * Dynamic device configuration and creation.
3 *
4 * Copyright (c) 2009 CodeSourcery
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "hw/qdev.h"
21 #include "hw/sysbus.h"
22 #include "monitor/monitor.h"
23 #include "monitor/qdev.h"
24 #include "qmp-commands.h"
25 #include "sysemu/arch_init.h"
26 #include "qapi/qmp/qerror.h"
27 #include "qemu/config-file.h"
28 #include "qemu/error-report.h"
29
30 /*
31 * Aliases were a bad idea from the start. Let's keep them
32 * from spreading further.
33 */
34 typedef struct QDevAlias
35 {
36 const char *typename;
37 const char *alias;
38 uint32_t arch_mask;
39 } QDevAlias;
40
41 static const QDevAlias qdev_alias_table[] = {
42 { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
43 { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
44 { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
45 { "virtio-balloon-pci", "virtio-balloon",
46 QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
47 { "virtio-blk-ccw", "virtio-blk", QEMU_ARCH_S390X },
48 { "virtio-net-ccw", "virtio-net", QEMU_ARCH_S390X },
49 { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_S390X },
50 { "lsi53c895a", "lsi" },
51 { "ich9-ahci", "ahci" },
52 { "kvm-pci-assign", "pci-assign" },
53 { }
54 };
55
56 static const char *qdev_class_get_alias(DeviceClass *dc)
57 {
58 const char *typename = object_class_get_name(OBJECT_CLASS(dc));
59 int i;
60
61 for (i = 0; qdev_alias_table[i].typename; i++) {
62 if (qdev_alias_table[i].arch_mask &&
63 !(qdev_alias_table[i].arch_mask & arch_type)) {
64 continue;
65 }
66
67 if (strcmp(qdev_alias_table[i].typename, typename) == 0) {
68 return qdev_alias_table[i].alias;
69 }
70 }
71
72 return NULL;
73 }
74
75 static bool qdev_class_has_alias(DeviceClass *dc)
76 {
77 return (qdev_class_get_alias(dc) != NULL);
78 }
79
80 static void qdev_print_devinfo(DeviceClass *dc)
81 {
82 error_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc)));
83 if (dc->bus_type) {
84 error_printf(", bus %s", dc->bus_type);
85 }
86 if (qdev_class_has_alias(dc)) {
87 error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
88 }
89 if (dc->desc) {
90 error_printf(", desc \"%s\"", dc->desc);
91 }
92 if (dc->cannot_instantiate_with_device_add_yet) {
93 error_printf(", no-user");
94 }
95 error_printf("\n");
96 }
97
98 static gint devinfo_cmp(gconstpointer a, gconstpointer b)
99 {
100 return strcasecmp(object_class_get_name((ObjectClass *)a),
101 object_class_get_name((ObjectClass *)b));
102 }
103
104 static void qdev_print_devinfos(bool show_no_user)
105 {
106 static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = {
107 [DEVICE_CATEGORY_BRIDGE] = "Controller/Bridge/Hub",
108 [DEVICE_CATEGORY_USB] = "USB",
109 [DEVICE_CATEGORY_STORAGE] = "Storage",
110 [DEVICE_CATEGORY_NETWORK] = "Network",
111 [DEVICE_CATEGORY_INPUT] = "Input",
112 [DEVICE_CATEGORY_DISPLAY] = "Display",
113 [DEVICE_CATEGORY_SOUND] = "Sound",
114 [DEVICE_CATEGORY_MISC] = "Misc",
115 [DEVICE_CATEGORY_MAX] = "Uncategorized",
116 };
117 GSList *list, *elt;
118 int i;
119 bool cat_printed;
120
121 list = g_slist_sort(object_class_get_list(TYPE_DEVICE, false),
122 devinfo_cmp);
123
124 for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) {
125 cat_printed = false;
126 for (elt = list; elt; elt = elt->next) {
127 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
128 TYPE_DEVICE);
129 if ((i < DEVICE_CATEGORY_MAX
130 ? !test_bit(i, dc->categories)
131 : !bitmap_empty(dc->categories, DEVICE_CATEGORY_MAX))
132 || (!show_no_user
133 && dc->cannot_instantiate_with_device_add_yet)) {
134 continue;
135 }
136 if (!cat_printed) {
137 error_printf("%s%s devices:\n", i ? "\n" : "",
138 cat_name[i]);
139 cat_printed = true;
140 }
141 qdev_print_devinfo(dc);
142 }
143 }
144
145 g_slist_free(list);
146 }
147
148 static int set_property(void *opaque, const char *name, const char *value,
149 Error **errp)
150 {
151 Object *obj = opaque;
152 Error *err = NULL;
153
154 if (strcmp(name, "driver") == 0)
155 return 0;
156 if (strcmp(name, "bus") == 0)
157 return 0;
158
159 object_property_parse(obj, value, name, &err);
160 if (err != NULL) {
161 error_propagate(errp, err);
162 return -1;
163 }
164 return 0;
165 }
166
167 static const char *find_typename_by_alias(const char *alias)
168 {
169 int i;
170
171 for (i = 0; qdev_alias_table[i].alias; i++) {
172 if (qdev_alias_table[i].arch_mask &&
173 !(qdev_alias_table[i].arch_mask & arch_type)) {
174 continue;
175 }
176
177 if (strcmp(qdev_alias_table[i].alias, alias) == 0) {
178 return qdev_alias_table[i].typename;
179 }
180 }
181
182 return NULL;
183 }
184
185 static DeviceClass *qdev_get_device_class(const char **driver, Error **errp)
186 {
187 ObjectClass *oc;
188 DeviceClass *dc;
189
190 oc = object_class_by_name(*driver);
191 if (!oc) {
192 const char *typename = find_typename_by_alias(*driver);
193
194 if (typename) {
195 *driver = typename;
196 oc = object_class_by_name(*driver);
197 }
198 }
199
200 if (!object_class_dynamic_cast(oc, TYPE_DEVICE)) {
201 error_setg(errp, "'%s' is not a valid device model name", *driver);
202 return NULL;
203 }
204
205 if (object_class_is_abstract(oc)) {
206 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
207 "non-abstract device type");
208 return NULL;
209 }
210
211 dc = DEVICE_CLASS(oc);
212 if (dc->cannot_instantiate_with_device_add_yet ||
213 (qdev_hotplug && !dc->hotpluggable)) {
214 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
215 "pluggable device type");
216 return NULL;
217 }
218
219 return dc;
220 }
221
222
223 int qdev_device_help(QemuOpts *opts)
224 {
225 Error *local_err = NULL;
226 const char *driver;
227 DevicePropertyInfoList *prop_list;
228 DevicePropertyInfoList *prop;
229
230 driver = qemu_opt_get(opts, "driver");
231 if (driver && is_help_option(driver)) {
232 qdev_print_devinfos(false);
233 return 1;
234 }
235
236 if (!driver || !qemu_opt_has_help_opt(opts)) {
237 return 0;
238 }
239
240 qdev_get_device_class(&driver, &local_err);
241 if (local_err) {
242 goto error;
243 }
244
245 prop_list = qmp_device_list_properties(driver, &local_err);
246 if (local_err) {
247 goto error;
248 }
249
250 for (prop = prop_list; prop; prop = prop->next) {
251 error_printf("%s.%s=%s", driver,
252 prop->value->name,
253 prop->value->type);
254 if (prop->value->has_description) {
255 error_printf(" (%s)\n", prop->value->description);
256 } else {
257 error_printf("\n");
258 }
259 }
260
261 qapi_free_DevicePropertyInfoList(prop_list);
262 return 1;
263
264 error:
265 error_printf("%s\n", error_get_pretty(local_err));
266 error_free(local_err);
267 return 1;
268 }
269
270 static Object *qdev_get_peripheral(void)
271 {
272 static Object *dev;
273
274 if (dev == NULL) {
275 dev = container_get(qdev_get_machine(), "/peripheral");
276 }
277
278 return dev;
279 }
280
281 static Object *qdev_get_peripheral_anon(void)
282 {
283 static Object *dev;
284
285 if (dev == NULL) {
286 dev = container_get(qdev_get_machine(), "/peripheral-anon");
287 }
288
289 return dev;
290 }
291
292 #if 0 /* conversion from qerror_report() to error_set() broke their use */
293 static void qbus_list_bus(DeviceState *dev)
294 {
295 BusState *child;
296 const char *sep = " ";
297
298 error_printf("child buses at \"%s\":",
299 dev->id ? dev->id : object_get_typename(OBJECT(dev)));
300 QLIST_FOREACH(child, &dev->child_bus, sibling) {
301 error_printf("%s\"%s\"", sep, child->name);
302 sep = ", ";
303 }
304 error_printf("\n");
305 }
306
307 static void qbus_list_dev(BusState *bus)
308 {
309 BusChild *kid;
310 const char *sep = " ";
311
312 error_printf("devices at \"%s\":", bus->name);
313 QTAILQ_FOREACH(kid, &bus->children, sibling) {
314 DeviceState *dev = kid->child;
315 error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev)));
316 if (dev->id)
317 error_printf("/\"%s\"", dev->id);
318 sep = ", ";
319 }
320 error_printf("\n");
321 }
322 #endif
323
324 static BusState *qbus_find_bus(DeviceState *dev, char *elem)
325 {
326 BusState *child;
327
328 QLIST_FOREACH(child, &dev->child_bus, sibling) {
329 if (strcmp(child->name, elem) == 0) {
330 return child;
331 }
332 }
333 return NULL;
334 }
335
336 static DeviceState *qbus_find_dev(BusState *bus, char *elem)
337 {
338 BusChild *kid;
339
340 /*
341 * try to match in order:
342 * (1) instance id, if present
343 * (2) driver name
344 * (3) driver alias, if present
345 */
346 QTAILQ_FOREACH(kid, &bus->children, sibling) {
347 DeviceState *dev = kid->child;
348 if (dev->id && strcmp(dev->id, elem) == 0) {
349 return dev;
350 }
351 }
352 QTAILQ_FOREACH(kid, &bus->children, sibling) {
353 DeviceState *dev = kid->child;
354 if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) {
355 return dev;
356 }
357 }
358 QTAILQ_FOREACH(kid, &bus->children, sibling) {
359 DeviceState *dev = kid->child;
360 DeviceClass *dc = DEVICE_GET_CLASS(dev);
361
362 if (qdev_class_has_alias(dc) &&
363 strcmp(qdev_class_get_alias(dc), elem) == 0) {
364 return dev;
365 }
366 }
367 return NULL;
368 }
369
370 static inline bool qbus_is_full(BusState *bus)
371 {
372 BusClass *bus_class = BUS_GET_CLASS(bus);
373 return bus_class->max_dev && bus->max_index >= bus_class->max_dev;
374 }
375
376 /*
377 * Search the tree rooted at @bus for a bus.
378 * If @name, search for a bus with that name. Note that bus names
379 * need not be unique. Yes, that's screwed up.
380 * Else search for a bus that is a subtype of @bus_typename.
381 * If more than one exists, prefer one that can take another device.
382 * Return the bus if found, else %NULL.
383 */
384 static BusState *qbus_find_recursive(BusState *bus, const char *name,
385 const char *bus_typename)
386 {
387 BusChild *kid;
388 BusState *pick, *child, *ret;
389 bool match;
390
391 assert(name || bus_typename);
392 if (name) {
393 match = !strcmp(bus->name, name);
394 } else {
395 match = !!object_dynamic_cast(OBJECT(bus), bus_typename);
396 }
397
398 if (match && !qbus_is_full(bus)) {
399 return bus; /* root matches and isn't full */
400 }
401
402 pick = match ? bus : NULL;
403
404 QTAILQ_FOREACH(kid, &bus->children, sibling) {
405 DeviceState *dev = kid->child;
406 QLIST_FOREACH(child, &dev->child_bus, sibling) {
407 ret = qbus_find_recursive(child, name, bus_typename);
408 if (ret && !qbus_is_full(ret)) {
409 return ret; /* a descendant matches and isn't full */
410 }
411 if (ret && !pick) {
412 pick = ret;
413 }
414 }
415 }
416
417 /* root or a descendant matches, but is full */
418 return pick;
419 }
420
421 static BusState *qbus_find(const char *path, Error **errp)
422 {
423 DeviceState *dev;
424 BusState *bus;
425 char elem[128];
426 int pos, len;
427
428 /* find start element */
429 if (path[0] == '/') {
430 bus = sysbus_get_default();
431 pos = 0;
432 } else {
433 if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
434 assert(!path[0]);
435 elem[0] = len = 0;
436 }
437 bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
438 if (!bus) {
439 error_setg(errp, "Bus '%s' not found", elem);
440 return NULL;
441 }
442 pos = len;
443 }
444
445 for (;;) {
446 assert(path[pos] == '/' || !path[pos]);
447 while (path[pos] == '/') {
448 pos++;
449 }
450 if (path[pos] == '\0') {
451 break;
452 }
453
454 /* find device */
455 if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
456 g_assert_not_reached();
457 elem[0] = len = 0;
458 }
459 pos += len;
460 dev = qbus_find_dev(bus, elem);
461 if (!dev) {
462 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
463 "Device '%s' not found", elem);
464 #if 0 /* conversion from qerror_report() to error_set() broke this: */
465 if (!monitor_cur_is_qmp()) {
466 qbus_list_dev(bus);
467 }
468 #endif
469 return NULL;
470 }
471
472 assert(path[pos] == '/' || !path[pos]);
473 while (path[pos] == '/') {
474 pos++;
475 }
476 if (path[pos] == '\0') {
477 /* last specified element is a device. If it has exactly
478 * one child bus accept it nevertheless */
479 if (dev->num_child_bus == 1) {
480 bus = QLIST_FIRST(&dev->child_bus);
481 break;
482 }
483 if (dev->num_child_bus) {
484 error_setg(errp, "Device '%s' has multiple child buses",
485 elem);
486 #if 0 /* conversion from qerror_report() to error_set() broke this: */
487 if (!monitor_cur_is_qmp()) {
488 qbus_list_bus(dev);
489 }
490 #endif
491 } else {
492 error_setg(errp, "Device '%s' has no child bus", elem);
493 }
494 return NULL;
495 }
496
497 /* find bus */
498 if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
499 g_assert_not_reached();
500 elem[0] = len = 0;
501 }
502 pos += len;
503 bus = qbus_find_bus(dev, elem);
504 if (!bus) {
505 error_setg(errp, "Bus '%s' not found", elem);
506 #if 0 /* conversion from qerror_report() to error_set() broke this: */
507 if (!monitor_cur_is_qmp()) {
508 qbus_list_bus(dev);
509 }
510 #endif
511 return NULL;
512 }
513 }
514
515 if (qbus_is_full(bus)) {
516 error_setg(errp, "Bus '%s' is full", path);
517 return NULL;
518 }
519 return bus;
520 }
521
522 DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
523 {
524 DeviceClass *dc;
525 const char *driver, *path, *id;
526 DeviceState *dev;
527 BusState *bus = NULL;
528 Error *err = NULL;
529
530 driver = qemu_opt_get(opts, "driver");
531 if (!driver) {
532 error_setg(errp, QERR_MISSING_PARAMETER, "driver");
533 return NULL;
534 }
535
536 /* find driver */
537 dc = qdev_get_device_class(&driver, errp);
538 if (!dc) {
539 return NULL;
540 }
541
542 /* find bus */
543 path = qemu_opt_get(opts, "bus");
544 if (path != NULL) {
545 bus = qbus_find(path, errp);
546 if (!bus) {
547 return NULL;
548 }
549 if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) {
550 error_setg(errp, "Device '%s' can't go on %s bus",
551 driver, object_get_typename(OBJECT(bus)));
552 return NULL;
553 }
554 } else if (dc->bus_type != NULL) {
555 bus = qbus_find_recursive(sysbus_get_default(), NULL, dc->bus_type);
556 if (!bus || qbus_is_full(bus)) {
557 error_setg(errp, "No '%s' bus found for device '%s'",
558 dc->bus_type, driver);
559 return NULL;
560 }
561 }
562 if (qdev_hotplug && bus && !qbus_is_hotpluggable(bus)) {
563 error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name);
564 return NULL;
565 }
566
567 /* create device */
568 dev = DEVICE(object_new(driver));
569
570 if (bus) {
571 qdev_set_parent_bus(dev, bus);
572 }
573
574 id = qemu_opts_id(opts);
575 if (id) {
576 dev->id = id;
577 }
578
579 if (dev->id) {
580 object_property_add_child(qdev_get_peripheral(), dev->id,
581 OBJECT(dev), NULL);
582 } else {
583 static int anon_count;
584 gchar *name = g_strdup_printf("device[%d]", anon_count++);
585 object_property_add_child(qdev_get_peripheral_anon(), name,
586 OBJECT(dev), NULL);
587 g_free(name);
588 }
589
590 /* set properties */
591 if (qemu_opt_foreach(opts, set_property, dev, &err)) {
592 error_propagate(errp, err);
593 object_unparent(OBJECT(dev));
594 object_unref(OBJECT(dev));
595 return NULL;
596 }
597
598 dev->opts = opts;
599 object_property_set_bool(OBJECT(dev), true, "realized", &err);
600 if (err != NULL) {
601 error_propagate(errp, err);
602 dev->opts = NULL;
603 object_unparent(OBJECT(dev));
604 object_unref(OBJECT(dev));
605 return NULL;
606 }
607 return dev;
608 }
609
610
611 #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
612 static void qbus_print(Monitor *mon, BusState *bus, int indent);
613
614 static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
615 int indent)
616 {
617 if (!props)
618 return;
619 for (; props->name; props++) {
620 Error *err = NULL;
621 char *value;
622 char *legacy_name = g_strdup_printf("legacy-%s", props->name);
623 if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) {
624 value = object_property_get_str(OBJECT(dev), legacy_name, &err);
625 } else {
626 value = object_property_print(OBJECT(dev), props->name, true, &err);
627 }
628 g_free(legacy_name);
629
630 if (err) {
631 error_free(err);
632 continue;
633 }
634 qdev_printf("%s = %s\n", props->name,
635 value && *value ? value : "<null>");
636 g_free(value);
637 }
638 }
639
640 static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent)
641 {
642 BusClass *bc = BUS_GET_CLASS(bus);
643
644 if (bc->print_dev) {
645 bc->print_dev(mon, dev, indent);
646 }
647 }
648
649 static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
650 {
651 ObjectClass *class;
652 BusState *child;
653 NamedGPIOList *ngl;
654
655 qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
656 dev->id ? dev->id : "");
657 indent += 2;
658 QLIST_FOREACH(ngl, &dev->gpios, node) {
659 if (ngl->num_in) {
660 qdev_printf("gpio-in \"%s\" %d\n", ngl->name ? ngl->name : "",
661 ngl->num_in);
662 }
663 if (ngl->num_out) {
664 qdev_printf("gpio-out \"%s\" %d\n", ngl->name ? ngl->name : "",
665 ngl->num_out);
666 }
667 }
668 class = object_get_class(OBJECT(dev));
669 do {
670 qdev_print_props(mon, dev, DEVICE_CLASS(class)->props, indent);
671 class = object_class_get_parent(class);
672 } while (class != object_class_by_name(TYPE_DEVICE));
673 bus_print_dev(dev->parent_bus, mon, dev, indent);
674 QLIST_FOREACH(child, &dev->child_bus, sibling) {
675 qbus_print(mon, child, indent);
676 }
677 }
678
679 static void qbus_print(Monitor *mon, BusState *bus, int indent)
680 {
681 BusChild *kid;
682
683 qdev_printf("bus: %s\n", bus->name);
684 indent += 2;
685 qdev_printf("type %s\n", object_get_typename(OBJECT(bus)));
686 QTAILQ_FOREACH(kid, &bus->children, sibling) {
687 DeviceState *dev = kid->child;
688 qdev_print(mon, dev, indent);
689 }
690 }
691 #undef qdev_printf
692
693 void hmp_info_qtree(Monitor *mon, const QDict *qdict)
694 {
695 if (sysbus_get_default())
696 qbus_print(mon, sysbus_get_default(), 0);
697 }
698
699 void hmp_info_qdm(Monitor *mon, const QDict *qdict)
700 {
701 qdev_print_devinfos(true);
702 }
703
704 typedef struct QOMCompositionState {
705 Monitor *mon;
706 int indent;
707 } QOMCompositionState;
708
709 static void print_qom_composition(Monitor *mon, Object *obj, int indent);
710
711 static int print_qom_composition_child(Object *obj, void *opaque)
712 {
713 QOMCompositionState *s = opaque;
714
715 print_qom_composition(s->mon, obj, s->indent);
716
717 return 0;
718 }
719
720 static void print_qom_composition(Monitor *mon, Object *obj, int indent)
721 {
722 QOMCompositionState s = {
723 .mon = mon,
724 .indent = indent + 2,
725 };
726 char *name;
727
728 if (obj == object_get_root()) {
729 name = g_strdup("");
730 } else {
731 name = object_get_canonical_path_component(obj);
732 }
733 monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name,
734 object_get_typename(obj));
735 g_free(name);
736 object_child_foreach(obj, print_qom_composition_child, &s);
737 }
738
739 void hmp_info_qom_tree(Monitor *mon, const QDict *dict)
740 {
741 const char *path = qdict_get_try_str(dict, "path");
742 Object *obj;
743 bool ambiguous = false;
744
745 if (path) {
746 obj = object_resolve_path(path, &ambiguous);
747 if (!obj) {
748 monitor_printf(mon, "Path '%s' could not be resolved.\n", path);
749 return;
750 }
751 if (ambiguous) {
752 monitor_printf(mon, "Warning: Path '%s' is ambiguous.\n", path);
753 return;
754 }
755 } else {
756 obj = qdev_get_machine();
757 }
758 print_qom_composition(mon, obj, 0);
759 }
760
761 void qmp_device_add(QDict *qdict, QObject **ret_data, Error **errp)
762 {
763 Error *local_err = NULL;
764 QemuOpts *opts;
765 DeviceState *dev;
766
767 opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, &local_err);
768 if (local_err) {
769 error_propagate(errp, local_err);
770 return;
771 }
772 if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
773 qemu_opts_del(opts);
774 return;
775 }
776 dev = qdev_device_add(opts, &local_err);
777 if (!dev) {
778 error_propagate(errp, local_err);
779 qemu_opts_del(opts);
780 return;
781 }
782 object_unref(OBJECT(dev));
783 }
784
785 void qmp_device_del(const char *id, Error **errp)
786 {
787 Object *obj;
788 char *root_path = object_get_canonical_path(qdev_get_peripheral());
789 char *path = g_strdup_printf("%s/%s", root_path, id);
790
791 g_free(root_path);
792 obj = object_resolve_path_type(path, TYPE_DEVICE, NULL);
793 g_free(path);
794
795 if (!obj) {
796 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
797 "Device '%s' not found", id);
798 return;
799 }
800
801 qdev_unplug(DEVICE(obj), errp);
802 }
803
804 void qdev_machine_init(void)
805 {
806 qdev_get_peripheral_anon();
807 qdev_get_peripheral();
808 }
809
810 QemuOptsList qemu_device_opts = {
811 .name = "device",
812 .implied_opt_name = "driver",
813 .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
814 .desc = {
815 /*
816 * no elements => accept any
817 * sanity checking will happen later
818 * when setting device properties
819 */
820 { /* end of list */ }
821 },
822 };
823
824 QemuOptsList qemu_global_opts = {
825 .name = "global",
826 .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
827 .desc = {
828 {
829 .name = "driver",
830 .type = QEMU_OPT_STRING,
831 },{
832 .name = "property",
833 .type = QEMU_OPT_STRING,
834 },{
835 .name = "value",
836 .type = QEMU_OPT_STRING,
837 },
838 { /* end of list */ }
839 },
840 };
841
842 int qemu_global_option(const char *str)
843 {
844 char driver[64], property[64];
845 QemuOpts *opts;
846 int rc, offset;
847
848 rc = sscanf(str, "%63[^.=].%63[^=]%n", driver, property, &offset);
849 if (rc == 2 && str[offset] == '=') {
850 opts = qemu_opts_create(&qemu_global_opts, NULL, 0, &error_abort);
851 qemu_opt_set(opts, "driver", driver, &error_abort);
852 qemu_opt_set(opts, "property", property, &error_abort);
853 qemu_opt_set(opts, "value", str + offset + 1, &error_abort);
854 return 0;
855 }
856
857 opts = qemu_opts_parse_noisily(&qemu_global_opts, str, false);
858 if (!opts) {
859 return -1;
860 }
861
862 return 0;
863 }