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aae9460e PB |
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 | |
8167ee88 | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
aae9460e PB |
18 | */ |
19 | ||
20 | /* The theory here is that it should be possible to create a machine without | |
21 | knowledge of specific devices. Historically board init routines have | |
22 | passed a bunch of arguments to each device, requiring the board know | |
23 | exactly which device it is dealing with. This file provides an abstract | |
24 | API for device configuration and initialization. Devices will generally | |
25 | inherit from a particular bus (e.g. PCI or I2C) rather than | |
26 | this API directly. */ | |
27 | ||
9d07d757 | 28 | #include "net.h" |
aae9460e PB |
29 | #include "qdev.h" |
30 | #include "sysemu.h" | |
cae4956e | 31 | #include "monitor.h" |
aae9460e | 32 | |
3418bd25 | 33 | static int qdev_hotplug = 0; |
0ac8ef71 AW |
34 | static bool qdev_hot_added = false; |
35 | static bool qdev_hot_removed = false; | |
3418bd25 | 36 | |
cdaed7c7 | 37 | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */ |
b9aaf7f8 | 38 | static BusState *main_system_bus; |
2da8bb92 | 39 | static void main_system_bus_create(void); |
4d6ae674 | 40 | |
8ffb1bcf GH |
41 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
42 | const BusInfo *info); | |
43 | static BusState *qbus_find(const char *path); | |
44 | ||
aae9460e | 45 | /* Register a new device type. */ |
30fbb9fc AL |
46 | static void qdev_subclass_init(ObjectClass *klass, void *data) |
47 | { | |
48 | DeviceClass *dc = DEVICE_CLASS(klass); | |
6e008585 | 49 | DeviceInfo *info = data; |
94afdadc | 50 | |
d253e096 AL |
51 | if (info->fw_name) { |
52 | dc->fw_name = info->fw_name; | |
53 | } | |
54 | if (info->alias) { | |
55 | dc->alias = info->alias; | |
56 | } | |
57 | if (info->desc) { | |
58 | dc->desc = info->desc; | |
59 | } | |
60 | if (info->props) { | |
61 | dc->props = info->props; | |
62 | } | |
63 | if (info->no_user) { | |
64 | dc->no_user = info->no_user; | |
65 | } | |
66 | if (info->reset) { | |
67 | dc->reset = info->reset; | |
68 | } | |
69 | if (info->vmsd) { | |
70 | dc->vmsd = info->vmsd; | |
71 | } | |
72 | if (info->init) { | |
73 | dc->init = info->init; | |
74 | } | |
75 | if (info->unplug) { | |
76 | dc->unplug = info->unplug; | |
77 | } | |
78 | if (info->exit) { | |
79 | dc->exit = info->exit; | |
80 | } | |
81 | if (info->bus_info) { | |
82 | dc->bus_info = info->bus_info; | |
83 | } | |
6e008585 AL |
84 | if (info->class_init) { |
85 | info->class_init(klass, data); | |
86 | } | |
30fbb9fc AL |
87 | } |
88 | ||
4be9f0d1 AL |
89 | const VMStateDescription *qdev_get_vmsd(DeviceState *dev) |
90 | { | |
6e008585 AL |
91 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
92 | return dc->vmsd; | |
4be9f0d1 AL |
93 | } |
94 | ||
95 | BusInfo *qdev_get_bus_info(DeviceState *dev) | |
96 | { | |
6e008585 AL |
97 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
98 | return dc->bus_info; | |
4be9f0d1 AL |
99 | } |
100 | ||
101 | Property *qdev_get_props(DeviceState *dev) | |
102 | { | |
6e008585 AL |
103 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
104 | return dc->props; | |
4be9f0d1 AL |
105 | } |
106 | ||
107 | const char *qdev_fw_name(DeviceState *dev) | |
108 | { | |
6e008585 | 109 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
4be9f0d1 | 110 | |
6e008585 AL |
111 | if (dc->fw_name) { |
112 | return dc->fw_name; | |
113 | } else if (dc->alias) { | |
114 | return dc->alias; | |
4be9f0d1 AL |
115 | } |
116 | ||
117 | return object_get_typename(OBJECT(dev)); | |
118 | } | |
119 | ||
18b6dade AL |
120 | static void qdev_do_register_subclass(DeviceInfo *info, const char *parent, |
121 | const char *name) | |
aae9460e | 122 | { |
32fea402 AL |
123 | TypeInfo type_info = {}; |
124 | ||
074f2fff | 125 | assert(info->size >= sizeof(DeviceState)); |
aae9460e | 126 | |
18b6dade | 127 | type_info.name = name; |
3cc90eb2 | 128 | type_info.parent = parent; |
32fea402 | 129 | type_info.instance_size = info->size; |
30fbb9fc AL |
130 | type_info.class_init = qdev_subclass_init; |
131 | type_info.class_data = info; | |
32fea402 AL |
132 | |
133 | type_register_static(&type_info); | |
18b6dade | 134 | } |
32fea402 | 135 | |
18b6dade AL |
136 | void qdev_register_subclass(DeviceInfo *info, const char *parent) |
137 | { | |
138 | qdev_do_register_subclass(info, parent, info->name); | |
139 | if (info->alias) { | |
140 | qdev_do_register_subclass(info, parent, info->alias); | |
141 | } | |
81ebb98b GH |
142 | } |
143 | ||
a369da5f BS |
144 | bool qdev_exists(const char *name) |
145 | { | |
212ad111 | 146 | return !!object_class_by_name(name); |
a369da5f | 147 | } |
40021f08 | 148 | |
ca2cc788 PB |
149 | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
150 | Error **errp); | |
151 | ||
18b6dade | 152 | static DeviceState *qdev_create_from_info(BusState *bus, const char *typename) |
0c17542d MA |
153 | { |
154 | DeviceState *dev; | |
a5296ca9 | 155 | Property *prop; |
0c17542d | 156 | |
18b6dade | 157 | dev = DEVICE(object_new(typename)); |
0c17542d | 158 | dev->parent_bus = bus; |
6e008585 | 159 | qdev_prop_set_defaults(dev, qdev_get_props(dev)); |
0c17542d MA |
160 | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
161 | qdev_prop_set_globals(dev); | |
d8bb00d6 | 162 | QTAILQ_INSERT_HEAD(&bus->children, dev, sibling); |
0c17542d MA |
163 | if (qdev_hotplug) { |
164 | assert(bus->allow_hotplug); | |
165 | dev->hotplugged = 1; | |
0ac8ef71 | 166 | qdev_hot_added = true; |
0c17542d | 167 | } |
4d2ffa08 | 168 | dev->instance_id_alias = -1; |
44677ded | 169 | QTAILQ_INIT(&dev->properties); |
0c17542d | 170 | dev->state = DEV_STATE_CREATED; |
a5296ca9 | 171 | |
6e008585 | 172 | for (prop = qdev_get_props(dev); prop && prop->name; prop++) { |
a5296ca9 | 173 | qdev_property_add_legacy(dev, prop, NULL); |
ca2cc788 | 174 | qdev_property_add_static(dev, prop, NULL); |
a5296ca9 AL |
175 | } |
176 | ||
6e008585 | 177 | for (prop = qdev_get_bus_info(dev)->props; prop && prop->name; prop++) { |
a5296ca9 | 178 | qdev_property_add_legacy(dev, prop, NULL); |
ca2cc788 | 179 | qdev_property_add_static(dev, prop, NULL); |
a5296ca9 AL |
180 | } |
181 | ||
cd34d667 AL |
182 | qdev_property_add_str(dev, "type", qdev_get_type, NULL, NULL); |
183 | ||
0c17542d MA |
184 | return dev; |
185 | } | |
186 | ||
aae9460e PB |
187 | /* Create a new device. This only initializes the device state structure |
188 | and allows properties to be set. qdev_init should be called to | |
189 | initialize the actual device emulation. */ | |
02e2da45 | 190 | DeviceState *qdev_create(BusState *bus, const char *name) |
0bcdeda7 BS |
191 | { |
192 | DeviceState *dev; | |
193 | ||
194 | dev = qdev_try_create(bus, name); | |
195 | if (!dev) { | |
e92714c7 PM |
196 | if (bus) { |
197 | hw_error("Unknown device '%s' for bus '%s'\n", name, | |
198 | bus->info->name); | |
199 | } else { | |
200 | hw_error("Unknown device '%s' for default sysbus\n", name); | |
201 | } | |
0bcdeda7 BS |
202 | } |
203 | ||
204 | return dev; | |
205 | } | |
206 | ||
207 | DeviceState *qdev_try_create(BusState *bus, const char *name) | |
aae9460e | 208 | { |
10c4c98a | 209 | if (!bus) { |
68694897 | 210 | bus = sysbus_get_default(); |
10c4c98a GH |
211 | } |
212 | ||
18b6dade | 213 | return qdev_create_from_info(bus, name); |
aae9460e PB |
214 | } |
215 | ||
212ad111 | 216 | static void qdev_print_devinfo(ObjectClass *klass, void *opaque) |
1b524b04 | 217 | { |
212ad111 AL |
218 | DeviceClass *dc; |
219 | bool *show_no_user = opaque; | |
220 | ||
221 | dc = (DeviceClass *)object_class_dynamic_cast(klass, TYPE_DEVICE); | |
222 | ||
223 | if (!dc || (show_no_user && !*show_no_user && dc->no_user)) { | |
224 | return; | |
22f2e344 | 225 | } |
212ad111 AL |
226 | |
227 | error_printf("name \"%s\"", object_class_get_name(klass)); | |
228 | if (dc->bus_info) { | |
229 | error_printf(", bus %s", dc->bus_info->name); | |
22f2e344 | 230 | } |
212ad111 AL |
231 | if (dc->alias) { |
232 | error_printf(", alias \"%s\"", dc->alias); | |
233 | } | |
234 | if (dc->desc) { | |
235 | error_printf(", desc \"%s\"", dc->desc); | |
236 | } | |
237 | if (dc->no_user) { | |
8a9662ca | 238 | error_printf(", no-user"); |
22f2e344 | 239 | } |
8a9662ca | 240 | error_printf("\n"); |
1b524b04 GH |
241 | } |
242 | ||
f31d07d1 | 243 | static int set_property(const char *name, const char *value, void *opaque) |
8ffb1bcf | 244 | { |
f31d07d1 GH |
245 | DeviceState *dev = opaque; |
246 | ||
247 | if (strcmp(name, "driver") == 0) | |
248 | return 0; | |
249 | if (strcmp(name, "bus") == 0) | |
250 | return 0; | |
251 | ||
3df04ac3 | 252 | if (qdev_prop_parse(dev, name, value) == -1) { |
f31d07d1 GH |
253 | return -1; |
254 | } | |
255 | return 0; | |
256 | } | |
257 | ||
ff952ba2 MA |
258 | int qdev_device_help(QemuOpts *opts) |
259 | { | |
260 | const char *driver; | |
08350cf0 | 261 | Property *prop; |
212ad111 AL |
262 | ObjectClass *klass; |
263 | DeviceClass *info; | |
ff952ba2 MA |
264 | |
265 | driver = qemu_opt_get(opts, "driver"); | |
266 | if (driver && !strcmp(driver, "?")) { | |
212ad111 AL |
267 | bool show_no_user = false; |
268 | object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, &show_no_user); | |
ff952ba2 MA |
269 | return 1; |
270 | } | |
271 | ||
542379f4 | 272 | if (!driver || !qemu_opt_get(opts, "?")) { |
08350cf0 MA |
273 | return 0; |
274 | } | |
275 | ||
212ad111 AL |
276 | klass = object_class_by_name(driver); |
277 | if (!klass) { | |
08350cf0 MA |
278 | return 0; |
279 | } | |
212ad111 | 280 | info = DEVICE_CLASS(klass); |
08350cf0 MA |
281 | |
282 | for (prop = info->props; prop && prop->name; prop++) { | |
036f7166 MA |
283 | /* |
284 | * TODO Properties without a parser are just for dirty hacks. | |
285 | * qdev_prop_ptr is the only such PropertyInfo. It's marked | |
286 | * for removal. This conditional should be removed along with | |
287 | * it. | |
288 | */ | |
289 | if (!prop->info->parse) { | |
290 | continue; /* no way to set it, don't show */ | |
291 | } | |
212ad111 | 292 | error_printf("%s.%s=%s\n", driver, prop->name, |
cafe5bdb | 293 | prop->info->legacy_name ?: prop->info->name); |
a8467c7a GH |
294 | } |
295 | for (prop = info->bus_info->props; prop && prop->name; prop++) { | |
296 | if (!prop->info->parse) { | |
297 | continue; /* no way to set it, don't show */ | |
298 | } | |
212ad111 | 299 | error_printf("%s.%s=%s\n", driver, prop->name, |
cafe5bdb | 300 | prop->info->legacy_name ?: prop->info->name); |
08350cf0 MA |
301 | } |
302 | return 1; | |
ff952ba2 MA |
303 | } |
304 | ||
1bdaacb1 AL |
305 | static DeviceState *qdev_get_peripheral(void) |
306 | { | |
307 | static DeviceState *dev; | |
308 | ||
309 | if (dev == NULL) { | |
310 | dev = qdev_create(NULL, "container"); | |
311 | qdev_property_add_child(qdev_get_root(), "peripheral", dev, NULL); | |
312 | qdev_init_nofail(dev); | |
313 | } | |
314 | ||
315 | return dev; | |
316 | } | |
317 | ||
8eb02831 AL |
318 | static DeviceState *qdev_get_peripheral_anon(void) |
319 | { | |
320 | static DeviceState *dev; | |
321 | ||
322 | if (dev == NULL) { | |
323 | dev = qdev_create(NULL, "container"); | |
324 | qdev_property_add_child(qdev_get_root(), "peripheral-anon", dev, NULL); | |
325 | qdev_init_nofail(dev); | |
326 | } | |
327 | ||
328 | return dev; | |
329 | } | |
330 | ||
f31d07d1 GH |
331 | DeviceState *qdev_device_add(QemuOpts *opts) |
332 | { | |
18b6dade | 333 | DeviceClass *k; |
f31d07d1 | 334 | const char *driver, *path, *id; |
8ffb1bcf GH |
335 | DeviceState *qdev; |
336 | BusState *bus; | |
8ffb1bcf | 337 | |
f31d07d1 GH |
338 | driver = qemu_opt_get(opts, "driver"); |
339 | if (!driver) { | |
0204276b | 340 | qerror_report(QERR_MISSING_PARAMETER, "driver"); |
8ffb1bcf GH |
341 | return NULL; |
342 | } | |
f31d07d1 GH |
343 | |
344 | /* find driver */ | |
18b6dade | 345 | k = DEVICE_CLASS(object_class_by_name(driver)); |
8ffb1bcf | 346 | |
f31d07d1 GH |
347 | /* find bus */ |
348 | path = qemu_opt_get(opts, "bus"); | |
349 | if (path != NULL) { | |
8ffb1bcf | 350 | bus = qbus_find(path); |
ac8dae67 MA |
351 | if (!bus) { |
352 | return NULL; | |
353 | } | |
18b6dade | 354 | if (bus->info != k->bus_info) { |
0204276b MA |
355 | qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
356 | driver, bus->info->name); | |
327867b6 MA |
357 | return NULL; |
358 | } | |
8ffb1bcf | 359 | } else { |
18b6dade | 360 | bus = qbus_find_recursive(main_system_bus, NULL, k->bus_info); |
ac8dae67 | 361 | if (!bus) { |
0204276b | 362 | qerror_report(QERR_NO_BUS_FOR_DEVICE, |
18b6dade | 363 | driver, k->bus_info->name); |
ac8dae67 MA |
364 | return NULL; |
365 | } | |
75570088 | 366 | } |
3418bd25 | 367 | if (qdev_hotplug && !bus->allow_hotplug) { |
0204276b | 368 | qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
3418bd25 GH |
369 | return NULL; |
370 | } | |
8ffb1bcf | 371 | |
f31d07d1 | 372 | /* create device, set properties */ |
18b6dade | 373 | qdev = qdev_create_from_info(bus, driver); |
f31d07d1 GH |
374 | id = qemu_opts_id(opts); |
375 | if (id) { | |
376 | qdev->id = id; | |
1bdaacb1 | 377 | qdev_property_add_child(qdev_get_peripheral(), qdev->id, qdev, NULL); |
8eb02831 AL |
378 | } else { |
379 | static int anon_count; | |
380 | gchar *name = g_strdup_printf("device[%d]", anon_count++); | |
381 | qdev_property_add_child(qdev_get_peripheral_anon(), name, | |
382 | qdev, NULL); | |
383 | g_free(name); | |
384 | } | |
f31d07d1 GH |
385 | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
386 | qdev_free(qdev); | |
387 | return NULL; | |
8ffb1bcf | 388 | } |
5c17ca25 | 389 | if (qdev_init(qdev) < 0) { |
0204276b | 390 | qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
81a322d4 GH |
391 | return NULL; |
392 | } | |
ef80b466 | 393 | qdev->opts = opts; |
8ffb1bcf GH |
394 | return qdev; |
395 | } | |
396 | ||
aae9460e PB |
397 | /* Initialize a device. Device properties should be set before calling |
398 | this function. IRQs and MMIO regions should be connected/mapped after | |
18cfeb52 MA |
399 | calling this function. |
400 | On failure, destroy the device and return negative value. | |
401 | Return 0 on success. */ | |
81a322d4 | 402 | int qdev_init(DeviceState *dev) |
aae9460e | 403 | { |
6e008585 | 404 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
959f733a GH |
405 | int rc; |
406 | ||
131ec1bd | 407 | assert(dev->state == DEV_STATE_CREATED); |
6e008585 AL |
408 | |
409 | /* FIXME hopefully this doesn't break anything */ | |
410 | rc = dc->init(dev, NULL); | |
18cfeb52 MA |
411 | if (rc < 0) { |
412 | qdev_free(dev); | |
959f733a | 413 | return rc; |
18cfeb52 | 414 | } |
6e008585 AL |
415 | if (qdev_get_vmsd(dev)) { |
416 | vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev, | |
4d2ffa08 JK |
417 | dev->instance_id_alias, |
418 | dev->alias_required_for_version); | |
419 | } | |
131ec1bd | 420 | dev->state = DEV_STATE_INITIALIZED; |
94afdadc AL |
421 | if (dev->hotplugged) { |
422 | device_reset(dev); | |
5ab28c83 | 423 | } |
959f733a | 424 | return 0; |
02e2da45 PB |
425 | } |
426 | ||
4d2ffa08 JK |
427 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
428 | int required_for_version) | |
429 | { | |
430 | assert(dev->state == DEV_STATE_CREATED); | |
431 | dev->instance_id_alias = alias_id; | |
432 | dev->alias_required_for_version = required_for_version; | |
433 | } | |
434 | ||
3418bd25 GH |
435 | int qdev_unplug(DeviceState *dev) |
436 | { | |
6e008585 AL |
437 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
438 | ||
3418bd25 | 439 | if (!dev->parent_bus->allow_hotplug) { |
cc601cb7 | 440 | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
3418bd25 GH |
441 | return -1; |
442 | } | |
6e008585 | 443 | assert(dc->unplug != NULL); |
593831de | 444 | |
0ac8ef71 AW |
445 | qdev_hot_removed = true; |
446 | ||
6e008585 | 447 | return dc->unplug(dev); |
3418bd25 GH |
448 | } |
449 | ||
ec990eb6 AL |
450 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
451 | { | |
94afdadc | 452 | device_reset(dev); |
ec990eb6 AL |
453 | |
454 | return 0; | |
455 | } | |
456 | ||
457 | BusState *sysbus_get_default(void) | |
458 | { | |
68694897 | 459 | if (!main_system_bus) { |
2da8bb92 | 460 | main_system_bus_create(); |
68694897 | 461 | } |
ec990eb6 AL |
462 | return main_system_bus; |
463 | } | |
464 | ||
b4694b7c IY |
465 | static int qbus_reset_one(BusState *bus, void *opaque) |
466 | { | |
467 | if (bus->info->reset) { | |
468 | return bus->info->reset(bus); | |
469 | } | |
470 | return 0; | |
471 | } | |
472 | ||
5af0a04b IY |
473 | void qdev_reset_all(DeviceState *dev) |
474 | { | |
475 | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL); | |
476 | } | |
477 | ||
80376c3f IY |
478 | void qbus_reset_all_fn(void *opaque) |
479 | { | |
480 | BusState *bus = opaque; | |
f530cce3 | 481 | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL); |
80376c3f IY |
482 | } |
483 | ||
3418bd25 GH |
484 | /* can be used as ->unplug() callback for the simple cases */ |
485 | int qdev_simple_unplug_cb(DeviceState *dev) | |
486 | { | |
487 | /* just zap it */ | |
488 | qdev_free(dev); | |
489 | return 0; | |
490 | } | |
491 | ||
3b29a101 MT |
492 | |
493 | /* Like qdev_init(), but terminate program via error_report() instead of | |
e23a1b33 MA |
494 | returning an error value. This is okay during machine creation. |
495 | Don't use for hotplug, because there callers need to recover from | |
496 | failure. Exception: if you know the device's init() callback can't | |
497 | fail, then qdev_init_nofail() can't fail either, and is therefore | |
498 | usable even then. But relying on the device implementation that | |
499 | way is somewhat unclean, and best avoided. */ | |
500 | void qdev_init_nofail(DeviceState *dev) | |
501 | { | |
bd6c9a61 | 502 | if (qdev_init(dev) < 0) { |
6e008585 AL |
503 | error_report("Initialization of device %s failed", |
504 | object_get_typename(OBJECT(dev))); | |
bd6c9a61 MA |
505 | exit(1); |
506 | } | |
e23a1b33 MA |
507 | } |
508 | ||
44677ded AL |
509 | static void qdev_property_del_all(DeviceState *dev) |
510 | { | |
511 | while (!QTAILQ_EMPTY(&dev->properties)) { | |
512 | DeviceProperty *prop = QTAILQ_FIRST(&dev->properties); | |
513 | ||
514 | QTAILQ_REMOVE(&dev->properties, prop, node); | |
515 | ||
516 | if (prop->release) { | |
517 | prop->release(dev, prop->name, prop->opaque); | |
518 | } | |
519 | ||
520 | g_free(prop->name); | |
521 | g_free(prop->type); | |
522 | g_free(prop); | |
523 | } | |
524 | } | |
525 | ||
024a6fbd AL |
526 | static void qdev_property_del_child(DeviceState *dev, DeviceState *child, Error **errp) |
527 | { | |
528 | DeviceProperty *prop; | |
529 | ||
530 | QTAILQ_FOREACH(prop, &dev->properties, node) { | |
531 | if (strstart(prop->type, "child<", NULL) && prop->opaque == child) { | |
532 | break; | |
533 | } | |
534 | } | |
535 | ||
536 | g_assert(prop != NULL); | |
537 | ||
538 | QTAILQ_REMOVE(&dev->properties, prop, node); | |
539 | ||
540 | if (prop->release) { | |
541 | prop->release(dev, prop->name, prop->opaque); | |
542 | } | |
543 | ||
544 | g_free(prop->name); | |
545 | g_free(prop->type); | |
546 | g_free(prop); | |
547 | } | |
548 | ||
02e2da45 PB |
549 | /* Unlink device from bus and free the structure. */ |
550 | void qdev_free(DeviceState *dev) | |
551 | { | |
131ec1bd | 552 | BusState *bus; |
d21357df | 553 | Property *prop; |
6e008585 | 554 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
131ec1bd | 555 | |
44677ded AL |
556 | qdev_property_del_all(dev); |
557 | ||
131ec1bd GH |
558 | if (dev->state == DEV_STATE_INITIALIZED) { |
559 | while (dev->num_child_bus) { | |
560 | bus = QLIST_FIRST(&dev->child_bus); | |
561 | qbus_free(bus); | |
562 | } | |
6e008585 AL |
563 | if (qdev_get_vmsd(dev)) { |
564 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); | |
565 | } | |
566 | if (dc->exit) { | |
567 | dc->exit(dev); | |
568 | } | |
569 | if (dev->opts) { | |
ef80b466 | 570 | qemu_opts_del(dev->opts); |
6e008585 | 571 | } |
131ec1bd | 572 | } |
d8bb00d6 | 573 | QTAILQ_REMOVE(&dev->parent_bus->children, dev, sibling); |
6e008585 | 574 | for (prop = qdev_get_props(dev); prop && prop->name; prop++) { |
d21357df MA |
575 | if (prop->info->free) { |
576 | prop->info->free(dev, prop); | |
577 | } | |
578 | } | |
024a6fbd AL |
579 | if (dev->parent) { |
580 | qdev_property_del_child(dev->parent, dev, NULL); | |
581 | } | |
582 | if (dev->ref != 0) { | |
583 | qerror_report(QERR_DEVICE_IN_USE, dev->id?:""); | |
584 | } | |
32fea402 | 585 | object_delete(OBJECT(dev)); |
aae9460e PB |
586 | } |
587 | ||
3418bd25 GH |
588 | void qdev_machine_creation_done(void) |
589 | { | |
590 | /* | |
591 | * ok, initial machine setup is done, starting from now we can | |
592 | * only create hotpluggable devices | |
593 | */ | |
594 | qdev_hotplug = 1; | |
595 | } | |
596 | ||
0ac8ef71 AW |
597 | bool qdev_machine_modified(void) |
598 | { | |
599 | return qdev_hot_added || qdev_hot_removed; | |
600 | } | |
601 | ||
aae9460e PB |
602 | /* Get a character (serial) device interface. */ |
603 | CharDriverState *qdev_init_chardev(DeviceState *dev) | |
604 | { | |
605 | static int next_serial; | |
98b19252 AS |
606 | |
607 | /* FIXME: This function needs to go away: use chardev properties! */ | |
608 | return serial_hds[next_serial++]; | |
aae9460e PB |
609 | } |
610 | ||
02e2da45 | 611 | BusState *qdev_get_parent_bus(DeviceState *dev) |
aae9460e | 612 | { |
02e2da45 | 613 | return dev->parent_bus; |
aae9460e PB |
614 | } |
615 | ||
aae9460e PB |
616 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
617 | { | |
618 | assert(dev->num_gpio_in == 0); | |
619 | dev->num_gpio_in = n; | |
620 | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); | |
621 | } | |
622 | ||
623 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) | |
624 | { | |
625 | assert(dev->num_gpio_out == 0); | |
626 | dev->num_gpio_out = n; | |
627 | dev->gpio_out = pins; | |
628 | } | |
629 | ||
630 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) | |
631 | { | |
632 | assert(n >= 0 && n < dev->num_gpio_in); | |
633 | return dev->gpio_in[n]; | |
634 | } | |
635 | ||
636 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) | |
637 | { | |
638 | assert(n >= 0 && n < dev->num_gpio_out); | |
639 | dev->gpio_out[n] = pin; | |
640 | } | |
641 | ||
ed16ab5a GH |
642 | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd) |
643 | { | |
6eed1856 | 644 | qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a); |
ed16ab5a GH |
645 | if (nd->vlan) |
646 | qdev_prop_set_vlan(dev, "vlan", nd->vlan); | |
647 | if (nd->netdev) | |
648 | qdev_prop_set_netdev(dev, "netdev", nd->netdev); | |
75422b0d | 649 | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && |
97b15621 GH |
650 | qdev_prop_exists(dev, "vectors")) { |
651 | qdev_prop_set_uint32(dev, "vectors", nd->nvectors); | |
652 | } | |
48e2faf2 | 653 | nd->instantiated = 1; |
ed16ab5a GH |
654 | } |
655 | ||
02e2da45 | 656 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
4d6ae674 | 657 | { |
02e2da45 | 658 | BusState *bus; |
4d6ae674 | 659 | |
72cf2d4f | 660 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
4d6ae674 | 661 | if (strcmp(name, bus->name) == 0) { |
02e2da45 | 662 | return bus; |
4d6ae674 PB |
663 | } |
664 | } | |
665 | return NULL; | |
666 | } | |
667 | ||
81699d8a AL |
668 | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn, |
669 | qbus_walkerfn *busfn, void *opaque) | |
670 | { | |
671 | DeviceState *dev; | |
672 | int err; | |
673 | ||
674 | if (busfn) { | |
675 | err = busfn(bus, opaque); | |
676 | if (err) { | |
677 | return err; | |
678 | } | |
679 | } | |
680 | ||
d8bb00d6 | 681 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
81699d8a AL |
682 | err = qdev_walk_children(dev, devfn, busfn, opaque); |
683 | if (err < 0) { | |
684 | return err; | |
685 | } | |
686 | } | |
687 | ||
688 | return 0; | |
689 | } | |
690 | ||
691 | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn, | |
692 | qbus_walkerfn *busfn, void *opaque) | |
693 | { | |
694 | BusState *bus; | |
695 | int err; | |
696 | ||
697 | if (devfn) { | |
698 | err = devfn(dev, opaque); | |
699 | if (err) { | |
700 | return err; | |
701 | } | |
702 | } | |
703 | ||
704 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
705 | err = qbus_walk_children(bus, devfn, busfn, opaque); | |
706 | if (err < 0) { | |
707 | return err; | |
708 | } | |
709 | } | |
710 | ||
711 | return 0; | |
712 | } | |
713 | ||
8ffb1bcf GH |
714 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
715 | const BusInfo *info) | |
716 | { | |
717 | DeviceState *dev; | |
718 | BusState *child, *ret; | |
719 | int match = 1; | |
720 | ||
721 | if (name && (strcmp(bus->name, name) != 0)) { | |
722 | match = 0; | |
723 | } | |
724 | if (info && (bus->info != info)) { | |
725 | match = 0; | |
726 | } | |
727 | if (match) { | |
728 | return bus; | |
729 | } | |
730 | ||
d8bb00d6 | 731 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
72cf2d4f | 732 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
8ffb1bcf GH |
733 | ret = qbus_find_recursive(child, name, info); |
734 | if (ret) { | |
735 | return ret; | |
736 | } | |
737 | } | |
738 | } | |
739 | return NULL; | |
740 | } | |
741 | ||
a2ee6b4f | 742 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
3418bd25 GH |
743 | { |
744 | DeviceState *dev, *ret; | |
745 | BusState *child; | |
746 | ||
d8bb00d6 | 747 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
3418bd25 GH |
748 | if (dev->id && strcmp(dev->id, id) == 0) |
749 | return dev; | |
750 | QLIST_FOREACH(child, &dev->child_bus, sibling) { | |
751 | ret = qdev_find_recursive(child, id); | |
752 | if (ret) { | |
753 | return ret; | |
754 | } | |
755 | } | |
756 | } | |
757 | return NULL; | |
758 | } | |
759 | ||
53db16b5 | 760 | static void qbus_list_bus(DeviceState *dev) |
8ffb1bcf GH |
761 | { |
762 | BusState *child; | |
763 | const char *sep = " "; | |
8ffb1bcf | 764 | |
53db16b5 | 765 | error_printf("child busses at \"%s\":", |
f79f2bfc | 766 | dev->id ? dev->id : object_get_typename(OBJECT(dev))); |
72cf2d4f | 767 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
53db16b5 | 768 | error_printf("%s\"%s\"", sep, child->name); |
8ffb1bcf GH |
769 | sep = ", "; |
770 | } | |
53db16b5 | 771 | error_printf("\n"); |
8ffb1bcf GH |
772 | } |
773 | ||
53db16b5 | 774 | static void qbus_list_dev(BusState *bus) |
8ffb1bcf GH |
775 | { |
776 | DeviceState *dev; | |
777 | const char *sep = " "; | |
8ffb1bcf | 778 | |
53db16b5 | 779 | error_printf("devices at \"%s\":", bus->name); |
d8bb00d6 | 780 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
f79f2bfc | 781 | error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev))); |
8ffb1bcf | 782 | if (dev->id) |
53db16b5 | 783 | error_printf("/\"%s\"", dev->id); |
8ffb1bcf GH |
784 | sep = ", "; |
785 | } | |
53db16b5 | 786 | error_printf("\n"); |
8ffb1bcf GH |
787 | } |
788 | ||
789 | static BusState *qbus_find_bus(DeviceState *dev, char *elem) | |
790 | { | |
791 | BusState *child; | |
792 | ||
72cf2d4f | 793 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
8ffb1bcf GH |
794 | if (strcmp(child->name, elem) == 0) { |
795 | return child; | |
796 | } | |
797 | } | |
798 | return NULL; | |
799 | } | |
800 | ||
801 | static DeviceState *qbus_find_dev(BusState *bus, char *elem) | |
802 | { | |
803 | DeviceState *dev; | |
804 | ||
805 | /* | |
806 | * try to match in order: | |
807 | * (1) instance id, if present | |
808 | * (2) driver name | |
809 | * (3) driver alias, if present | |
810 | */ | |
d8bb00d6 | 811 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
8ffb1bcf GH |
812 | if (dev->id && strcmp(dev->id, elem) == 0) { |
813 | return dev; | |
814 | } | |
815 | } | |
d8bb00d6 | 816 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
f79f2bfc | 817 | if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) { |
8ffb1bcf GH |
818 | return dev; |
819 | } | |
820 | } | |
d8bb00d6 | 821 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
6e008585 AL |
822 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
823 | ||
824 | if (dc->alias && strcmp(dc->alias, elem) == 0) { | |
8ffb1bcf GH |
825 | return dev; |
826 | } | |
827 | } | |
828 | return NULL; | |
829 | } | |
830 | ||
831 | static BusState *qbus_find(const char *path) | |
832 | { | |
833 | DeviceState *dev; | |
834 | BusState *bus; | |
53db16b5 | 835 | char elem[128]; |
8ffb1bcf GH |
836 | int pos, len; |
837 | ||
838 | /* find start element */ | |
839 | if (path[0] == '/') { | |
840 | bus = main_system_bus; | |
841 | pos = 0; | |
842 | } else { | |
843 | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { | |
fc98eb43 MA |
844 | assert(!path[0]); |
845 | elem[0] = len = 0; | |
8ffb1bcf GH |
846 | } |
847 | bus = qbus_find_recursive(main_system_bus, elem, NULL); | |
848 | if (!bus) { | |
ac8dae67 | 849 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
8ffb1bcf GH |
850 | return NULL; |
851 | } | |
852 | pos = len; | |
853 | } | |
854 | ||
855 | for (;;) { | |
fc98eb43 MA |
856 | assert(path[pos] == '/' || !path[pos]); |
857 | while (path[pos] == '/') { | |
858 | pos++; | |
859 | } | |
8ffb1bcf | 860 | if (path[pos] == '\0') { |
8ffb1bcf GH |
861 | return bus; |
862 | } | |
863 | ||
864 | /* find device */ | |
fc98eb43 MA |
865 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
866 | assert(0); | |
867 | elem[0] = len = 0; | |
8ffb1bcf GH |
868 | } |
869 | pos += len; | |
870 | dev = qbus_find_dev(bus, elem); | |
871 | if (!dev) { | |
ac8dae67 | 872 | qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
8bc27249 MA |
873 | if (!monitor_cur_is_qmp()) { |
874 | qbus_list_dev(bus); | |
875 | } | |
8ffb1bcf GH |
876 | return NULL; |
877 | } | |
fc98eb43 MA |
878 | |
879 | assert(path[pos] == '/' || !path[pos]); | |
880 | while (path[pos] == '/') { | |
881 | pos++; | |
882 | } | |
8ffb1bcf GH |
883 | if (path[pos] == '\0') { |
884 | /* last specified element is a device. If it has exactly | |
885 | * one child bus accept it nevertheless */ | |
886 | switch (dev->num_child_bus) { | |
887 | case 0: | |
ac8dae67 | 888 | qerror_report(QERR_DEVICE_NO_BUS, elem); |
8ffb1bcf GH |
889 | return NULL; |
890 | case 1: | |
72cf2d4f | 891 | return QLIST_FIRST(&dev->child_bus); |
8ffb1bcf | 892 | default: |
ac8dae67 | 893 | qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
8bc27249 MA |
894 | if (!monitor_cur_is_qmp()) { |
895 | qbus_list_bus(dev); | |
896 | } | |
8ffb1bcf GH |
897 | return NULL; |
898 | } | |
899 | } | |
900 | ||
901 | /* find bus */ | |
fc98eb43 MA |
902 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
903 | assert(0); | |
904 | elem[0] = len = 0; | |
8ffb1bcf GH |
905 | } |
906 | pos += len; | |
907 | bus = qbus_find_bus(dev, elem); | |
908 | if (!bus) { | |
ac8dae67 | 909 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
8bc27249 MA |
910 | if (!monitor_cur_is_qmp()) { |
911 | qbus_list_bus(dev); | |
912 | } | |
8ffb1bcf GH |
913 | return NULL; |
914 | } | |
915 | } | |
916 | } | |
917 | ||
cd739fb6 GH |
918 | void qbus_create_inplace(BusState *bus, BusInfo *info, |
919 | DeviceState *parent, const char *name) | |
02e2da45 | 920 | { |
d271de9f GH |
921 | char *buf; |
922 | int i,len; | |
02e2da45 | 923 | |
10c4c98a | 924 | bus->info = info; |
02e2da45 | 925 | bus->parent = parent; |
d271de9f GH |
926 | |
927 | if (name) { | |
928 | /* use supplied name */ | |
7267c094 | 929 | bus->name = g_strdup(name); |
d271de9f GH |
930 | } else if (parent && parent->id) { |
931 | /* parent device has id -> use it for bus name */ | |
932 | len = strlen(parent->id) + 16; | |
7267c094 | 933 | buf = g_malloc(len); |
d271de9f GH |
934 | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus); |
935 | bus->name = buf; | |
936 | } else { | |
937 | /* no id -> use lowercase bus type for bus name */ | |
938 | len = strlen(info->name) + 16; | |
7267c094 | 939 | buf = g_malloc(len); |
d271de9f GH |
940 | len = snprintf(buf, len, "%s.%d", info->name, |
941 | parent ? parent->num_child_bus : 0); | |
942 | for (i = 0; i < len; i++) | |
bb87ece5 | 943 | buf[i] = qemu_tolower(buf[i]); |
d271de9f GH |
944 | bus->name = buf; |
945 | } | |
946 | ||
d8bb00d6 | 947 | QTAILQ_INIT(&bus->children); |
02e2da45 | 948 | if (parent) { |
72cf2d4f | 949 | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
d271de9f | 950 | parent->num_child_bus++; |
80376c3f IY |
951 | } else if (bus != main_system_bus) { |
952 | /* TODO: once all bus devices are qdevified, | |
953 | only reset handler for main_system_bus should be registered here. */ | |
954 | qemu_register_reset(qbus_reset_all_fn, bus); | |
02e2da45 | 955 | } |
cd739fb6 GH |
956 | } |
957 | ||
958 | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) | |
959 | { | |
960 | BusState *bus; | |
961 | ||
7267c094 | 962 | bus = g_malloc0(info->size); |
cd739fb6 GH |
963 | bus->qdev_allocated = 1; |
964 | qbus_create_inplace(bus, info, parent, name); | |
02e2da45 PB |
965 | return bus; |
966 | } | |
cae4956e | 967 | |
2da8bb92 IY |
968 | static void main_system_bus_create(void) |
969 | { | |
970 | /* assign main_system_bus before qbus_create_inplace() | |
971 | * in order to make "if (bus != main_system_bus)" work */ | |
7267c094 | 972 | main_system_bus = g_malloc0(system_bus_info.size); |
2da8bb92 IY |
973 | main_system_bus->qdev_allocated = 1; |
974 | qbus_create_inplace(main_system_bus, &system_bus_info, NULL, | |
975 | "main-system-bus"); | |
976 | } | |
977 | ||
131ec1bd GH |
978 | void qbus_free(BusState *bus) |
979 | { | |
980 | DeviceState *dev; | |
981 | ||
d8bb00d6 | 982 | while ((dev = QTAILQ_FIRST(&bus->children)) != NULL) { |
131ec1bd GH |
983 | qdev_free(dev); |
984 | } | |
985 | if (bus->parent) { | |
986 | QLIST_REMOVE(bus, sibling); | |
987 | bus->parent->num_child_bus--; | |
80376c3f IY |
988 | } else { |
989 | assert(bus != main_system_bus); /* main_system_bus is never freed */ | |
990 | qemu_unregister_reset(qbus_reset_all_fn, bus); | |
131ec1bd | 991 | } |
7267c094 | 992 | g_free((void*)bus->name); |
131ec1bd | 993 | if (bus->qdev_allocated) { |
7267c094 | 994 | g_free(bus); |
131ec1bd GH |
995 | } |
996 | } | |
997 | ||
cae4956e GH |
998 | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
999 | static void qbus_print(Monitor *mon, BusState *bus, int indent); | |
1000 | ||
ee6847d1 GH |
1001 | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
1002 | const char *prefix, int indent) | |
1003 | { | |
1004 | char buf[64]; | |
1005 | ||
1006 | if (!props) | |
1007 | return; | |
1008 | while (props->name) { | |
036f7166 MA |
1009 | /* |
1010 | * TODO Properties without a print method are just for dirty | |
1011 | * hacks. qdev_prop_ptr is the only such PropertyInfo. It's | |
1012 | * marked for removal. The test props->info->print should be | |
1013 | * removed along with it. | |
1014 | */ | |
ee6847d1 GH |
1015 | if (props->info->print) { |
1016 | props->info->print(dev, props, buf, sizeof(buf)); | |
1017 | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf); | |
1018 | } | |
1019 | props++; | |
1020 | } | |
1021 | } | |
1022 | ||
cae4956e GH |
1023 | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
1024 | { | |
cae4956e | 1025 | BusState *child; |
f79f2bfc | 1026 | qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)), |
ccb63de3 | 1027 | dev->id ? dev->id : ""); |
cae4956e GH |
1028 | indent += 2; |
1029 | if (dev->num_gpio_in) { | |
1030 | qdev_printf("gpio-in %d\n", dev->num_gpio_in); | |
1031 | } | |
1032 | if (dev->num_gpio_out) { | |
1033 | qdev_printf("gpio-out %d\n", dev->num_gpio_out); | |
1034 | } | |
6e008585 | 1035 | qdev_print_props(mon, dev, qdev_get_props(dev), "dev", indent); |
ee6847d1 | 1036 | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent); |
10c4c98a GH |
1037 | if (dev->parent_bus->info->print_dev) |
1038 | dev->parent_bus->info->print_dev(mon, dev, indent); | |
72cf2d4f | 1039 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
cae4956e GH |
1040 | qbus_print(mon, child, indent); |
1041 | } | |
1042 | } | |
1043 | ||
1044 | static void qbus_print(Monitor *mon, BusState *bus, int indent) | |
1045 | { | |
1046 | struct DeviceState *dev; | |
1047 | ||
1048 | qdev_printf("bus: %s\n", bus->name); | |
1049 | indent += 2; | |
10c4c98a | 1050 | qdev_printf("type %s\n", bus->info->name); |
d8bb00d6 | 1051 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
cae4956e GH |
1052 | qdev_print(mon, dev, indent); |
1053 | } | |
1054 | } | |
1055 | #undef qdev_printf | |
1056 | ||
1057 | void do_info_qtree(Monitor *mon) | |
1058 | { | |
1059 | if (main_system_bus) | |
1060 | qbus_print(mon, main_system_bus, 0); | |
1061 | } | |
9316d30f | 1062 | |
f6c64e0e | 1063 | void do_info_qdm(Monitor *mon) |
9316d30f | 1064 | { |
212ad111 | 1065 | object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, NULL); |
9316d30f | 1066 | } |
3418bd25 | 1067 | |
8bc27249 | 1068 | int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
3418bd25 GH |
1069 | { |
1070 | QemuOpts *opts; | |
1071 | ||
3329f07b | 1072 | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict); |
8bc27249 MA |
1073 | if (!opts) { |
1074 | return -1; | |
1075 | } | |
1076 | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) { | |
1077 | qemu_opts_del(opts); | |
1078 | return 0; | |
0f853a38 | 1079 | } |
8bc27249 MA |
1080 | if (!qdev_device_add(opts)) { |
1081 | qemu_opts_del(opts); | |
1082 | return -1; | |
1083 | } | |
1084 | return 0; | |
3418bd25 GH |
1085 | } |
1086 | ||
17a38eaa | 1087 | int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
3418bd25 GH |
1088 | { |
1089 | const char *id = qdict_get_str(qdict, "id"); | |
1090 | DeviceState *dev; | |
1091 | ||
1092 | dev = qdev_find_recursive(main_system_bus, id); | |
1093 | if (NULL == dev) { | |
17a38eaa MA |
1094 | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
1095 | return -1; | |
3418bd25 | 1096 | } |
17a38eaa | 1097 | return qdev_unplug(dev); |
3418bd25 | 1098 | } |
1ca4d09a GN |
1099 | |
1100 | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) | |
1101 | { | |
1102 | int l = 0; | |
1103 | ||
1104 | if (dev && dev->parent_bus) { | |
1105 | char *d; | |
1106 | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); | |
1107 | if (dev->parent_bus->info->get_fw_dev_path) { | |
1108 | d = dev->parent_bus->info->get_fw_dev_path(dev); | |
1109 | l += snprintf(p + l, size - l, "%s", d); | |
7267c094 | 1110 | g_free(d); |
1ca4d09a | 1111 | } else { |
f79f2bfc | 1112 | l += snprintf(p + l, size - l, "%s", object_get_typename(OBJECT(dev))); |
1ca4d09a GN |
1113 | } |
1114 | } | |
1115 | l += snprintf(p + l , size - l, "/"); | |
1116 | ||
1117 | return l; | |
1118 | } | |
1119 | ||
1120 | char* qdev_get_fw_dev_path(DeviceState *dev) | |
1121 | { | |
1122 | char path[128]; | |
1123 | int l; | |
1124 | ||
1125 | l = qdev_get_fw_dev_path_helper(dev, path, 128); | |
1126 | ||
1127 | path[l-1] = '\0'; | |
1128 | ||
1129 | return strdup(path); | |
1130 | } | |
85ed303b | 1131 | |
cd34d667 AL |
1132 | char *qdev_get_type(DeviceState *dev, Error **errp) |
1133 | { | |
f79f2bfc | 1134 | return g_strdup(object_get_typename(OBJECT(dev))); |
cd34d667 AL |
1135 | } |
1136 | ||
85ed303b AL |
1137 | void qdev_ref(DeviceState *dev) |
1138 | { | |
1139 | dev->ref++; | |
1140 | } | |
1141 | ||
1142 | void qdev_unref(DeviceState *dev) | |
1143 | { | |
1144 | g_assert(dev->ref > 0); | |
1145 | dev->ref--; | |
1146 | } | |
44677ded AL |
1147 | |
1148 | void qdev_property_add(DeviceState *dev, const char *name, const char *type, | |
1149 | DevicePropertyAccessor *get, DevicePropertyAccessor *set, | |
1150 | DevicePropertyRelease *release, | |
1151 | void *opaque, Error **errp) | |
1152 | { | |
1153 | DeviceProperty *prop = g_malloc0(sizeof(*prop)); | |
1154 | ||
1155 | prop->name = g_strdup(name); | |
1156 | prop->type = g_strdup(type); | |
1157 | ||
1158 | prop->get = get; | |
1159 | prop->set = set; | |
1160 | prop->release = release; | |
1161 | prop->opaque = opaque; | |
1162 | ||
1163 | QTAILQ_INSERT_TAIL(&dev->properties, prop, node); | |
1164 | } | |
1165 | ||
1166 | static DeviceProperty *qdev_property_find(DeviceState *dev, const char *name) | |
1167 | { | |
1168 | DeviceProperty *prop; | |
1169 | ||
1170 | QTAILQ_FOREACH(prop, &dev->properties, node) { | |
1171 | if (strcmp(prop->name, name) == 0) { | |
1172 | return prop; | |
1173 | } | |
1174 | } | |
1175 | ||
1176 | return NULL; | |
1177 | } | |
1178 | ||
1179 | void qdev_property_get(DeviceState *dev, Visitor *v, const char *name, | |
1180 | Error **errp) | |
1181 | { | |
1182 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1183 | ||
1184 | if (prop == NULL) { | |
1185 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1186 | return; | |
1187 | } | |
1188 | ||
1189 | if (!prop->get) { | |
1190 | error_set(errp, QERR_PERMISSION_DENIED); | |
1191 | } else { | |
1192 | prop->get(dev, v, prop->opaque, name, errp); | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | void qdev_property_set(DeviceState *dev, Visitor *v, const char *name, | |
1197 | Error **errp) | |
1198 | { | |
1199 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1200 | ||
1201 | if (prop == NULL) { | |
1202 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1203 | return; | |
1204 | } | |
1205 | ||
1206 | if (!prop->set) { | |
1207 | error_set(errp, QERR_PERMISSION_DENIED); | |
1208 | } else { | |
0d41d9aa | 1209 | prop->set(dev, v, prop->opaque, name, errp); |
44677ded AL |
1210 | } |
1211 | } | |
1212 | ||
1213 | const char *qdev_property_get_type(DeviceState *dev, const char *name, Error **errp) | |
1214 | { | |
1215 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1216 | ||
1217 | if (prop == NULL) { | |
1218 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1219 | return NULL; | |
1220 | } | |
1221 | ||
1222 | return prop->type; | |
1223 | } | |
a5296ca9 AL |
1224 | |
1225 | /** | |
1226 | * Legacy property handling | |
1227 | */ | |
1228 | ||
1229 | static void qdev_get_legacy_property(DeviceState *dev, Visitor *v, void *opaque, | |
1230 | const char *name, Error **errp) | |
1231 | { | |
1232 | Property *prop = opaque; | |
1233 | ||
e3cb6ba6 PB |
1234 | char buffer[1024]; |
1235 | char *ptr = buffer; | |
a5296ca9 | 1236 | |
e3cb6ba6 PB |
1237 | prop->info->print(dev, prop, buffer, sizeof(buffer)); |
1238 | visit_type_str(v, &ptr, name, errp); | |
a5296ca9 AL |
1239 | } |
1240 | ||
1241 | static void qdev_set_legacy_property(DeviceState *dev, Visitor *v, void *opaque, | |
1242 | const char *name, Error **errp) | |
1243 | { | |
1244 | Property *prop = opaque; | |
e3cb6ba6 PB |
1245 | Error *local_err = NULL; |
1246 | char *ptr = NULL; | |
1247 | int ret; | |
a5296ca9 AL |
1248 | |
1249 | if (dev->state != DEV_STATE_CREATED) { | |
1250 | error_set(errp, QERR_PERMISSION_DENIED); | |
1251 | return; | |
1252 | } | |
1253 | ||
e3cb6ba6 PB |
1254 | visit_type_str(v, &ptr, name, &local_err); |
1255 | if (local_err) { | |
1256 | error_propagate(errp, local_err); | |
1257 | return; | |
1258 | } | |
a5296ca9 | 1259 | |
e3cb6ba6 | 1260 | ret = prop->info->parse(dev, prop, ptr); |
7db4c4e8 | 1261 | error_set_from_qdev_prop_error(errp, ret, dev, prop, ptr); |
e3cb6ba6 | 1262 | g_free(ptr); |
a5296ca9 AL |
1263 | } |
1264 | ||
1265 | /** | |
1266 | * @qdev_add_legacy_property - adds a legacy property | |
1267 | * | |
1268 | * Do not use this is new code! Properties added through this interface will | |
ca2cc788 | 1269 | * be given names and types in the "legacy" namespace. |
a5296ca9 AL |
1270 | * |
1271 | * Legacy properties are always processed as strings. The format of the string | |
1272 | * depends on the property type. | |
1273 | */ | |
1274 | void qdev_property_add_legacy(DeviceState *dev, Property *prop, | |
1275 | Error **errp) | |
1276 | { | |
ca2cc788 | 1277 | gchar *name, *type; |
a5296ca9 | 1278 | |
ca2cc788 | 1279 | name = g_strdup_printf("legacy-%s", prop->name); |
cafe5bdb PB |
1280 | type = g_strdup_printf("legacy<%s>", |
1281 | prop->info->legacy_name ?: prop->info->name); | |
a5296ca9 | 1282 | |
ca2cc788 | 1283 | qdev_property_add(dev, name, type, |
e3cb6ba6 PB |
1284 | prop->info->print ? qdev_get_legacy_property : NULL, |
1285 | prop->info->parse ? qdev_set_legacy_property : NULL, | |
a5296ca9 AL |
1286 | NULL, |
1287 | prop, errp); | |
1288 | ||
1289 | g_free(type); | |
ca2cc788 PB |
1290 | g_free(name); |
1291 | } | |
1292 | ||
1293 | /** | |
1294 | * @qdev_property_add_static - add a @Property to a device. | |
1295 | * | |
1296 | * Static properties access data in a struct. The actual type of the | |
1297 | * property and the field depends on the property type. | |
1298 | */ | |
1299 | void qdev_property_add_static(DeviceState *dev, Property *prop, | |
1300 | Error **errp) | |
1301 | { | |
1302 | qdev_property_add(dev, prop->name, prop->info->name, | |
1303 | prop->info->get, prop->info->set, | |
1304 | NULL, | |
1305 | prop, errp); | |
a5296ca9 | 1306 | } |
a10f07a7 AL |
1307 | |
1308 | DeviceState *qdev_get_root(void) | |
1309 | { | |
1310 | static DeviceState *qdev_root; | |
1311 | ||
1312 | if (!qdev_root) { | |
1313 | qdev_root = qdev_create(NULL, "container"); | |
1314 | qdev_init_nofail(qdev_root); | |
1315 | } | |
1316 | ||
1317 | return qdev_root; | |
1318 | } | |
f9fbd2fd | 1319 | |
3de1c3e8 AL |
1320 | static void qdev_get_child_property(DeviceState *dev, Visitor *v, void *opaque, |
1321 | const char *name, Error **errp) | |
1322 | { | |
1323 | DeviceState *child = opaque; | |
1324 | gchar *path; | |
1325 | ||
1326 | path = qdev_get_canonical_path(child); | |
1327 | visit_type_str(v, &path, name, errp); | |
1328 | g_free(path); | |
1329 | } | |
1330 | ||
024a6fbd AL |
1331 | static void qdev_release_child_property(DeviceState *dev, const char *name, |
1332 | void *opaque) | |
1333 | { | |
1334 | DeviceState *child = opaque; | |
1335 | ||
1336 | qdev_unref(child); | |
1337 | } | |
1338 | ||
3de1c3e8 AL |
1339 | void qdev_property_add_child(DeviceState *dev, const char *name, |
1340 | DeviceState *child, Error **errp) | |
1341 | { | |
1342 | gchar *type; | |
1343 | ||
f79f2bfc | 1344 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
3de1c3e8 AL |
1345 | |
1346 | qdev_property_add(dev, name, type, qdev_get_child_property, | |
024a6fbd AL |
1347 | NULL, qdev_release_child_property, |
1348 | child, errp); | |
3de1c3e8 AL |
1349 | |
1350 | qdev_ref(child); | |
b2b6c39a AL |
1351 | g_assert(child->parent == NULL); |
1352 | child->parent = dev; | |
3de1c3e8 AL |
1353 | |
1354 | g_free(type); | |
1355 | } | |
1356 | ||
83e94fb8 AL |
1357 | static void qdev_get_link_property(DeviceState *dev, Visitor *v, void *opaque, |
1358 | const char *name, Error **errp) | |
1359 | { | |
1360 | DeviceState **child = opaque; | |
1361 | gchar *path; | |
1362 | ||
1363 | if (*child) { | |
1364 | path = qdev_get_canonical_path(*child); | |
1365 | visit_type_str(v, &path, name, errp); | |
1366 | g_free(path); | |
1367 | } else { | |
1368 | path = (gchar *)""; | |
1369 | visit_type_str(v, &path, name, errp); | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | static void qdev_set_link_property(DeviceState *dev, Visitor *v, void *opaque, | |
1374 | const char *name, Error **errp) | |
1375 | { | |
1376 | DeviceState **child = opaque; | |
1377 | bool ambiguous = false; | |
1378 | const char *type; | |
1379 | char *path; | |
1380 | ||
1381 | type = qdev_property_get_type(dev, name, NULL); | |
1382 | ||
1383 | visit_type_str(v, &path, name, errp); | |
1384 | ||
1385 | if (*child) { | |
1386 | qdev_unref(*child); | |
1387 | } | |
1388 | ||
1389 | if (strcmp(path, "") != 0) { | |
1390 | DeviceState *target; | |
1391 | ||
1392 | target = qdev_resolve_path(path, &ambiguous); | |
1393 | if (target) { | |
1394 | gchar *target_type; | |
1395 | ||
f79f2bfc | 1396 | target_type = g_strdup_printf("link<%s>", object_get_typename(OBJECT(target))); |
83e94fb8 AL |
1397 | if (strcmp(target_type, type) == 0) { |
1398 | *child = target; | |
1399 | qdev_ref(target); | |
1400 | } else { | |
1401 | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, type); | |
1402 | } | |
1403 | ||
1404 | g_free(target_type); | |
1405 | } else { | |
1406 | error_set(errp, QERR_DEVICE_NOT_FOUND, path); | |
1407 | } | |
1408 | } else { | |
1409 | *child = NULL; | |
1410 | } | |
1411 | ||
1412 | g_free(path); | |
1413 | } | |
1414 | ||
1415 | void qdev_property_add_link(DeviceState *dev, const char *name, | |
1416 | const char *type, DeviceState **child, | |
1417 | Error **errp) | |
1418 | { | |
1419 | gchar *full_type; | |
1420 | ||
1421 | full_type = g_strdup_printf("link<%s>", type); | |
1422 | ||
1423 | qdev_property_add(dev, name, full_type, | |
1424 | qdev_get_link_property, | |
1425 | qdev_set_link_property, | |
1426 | NULL, child, errp); | |
1427 | ||
1428 | g_free(full_type); | |
1429 | } | |
1430 | ||
b2b6c39a | 1431 | gchar *qdev_get_canonical_path(DeviceState *dev) |
f9fbd2fd | 1432 | { |
b2b6c39a AL |
1433 | DeviceState *root = qdev_get_root(); |
1434 | char *newpath = NULL, *path = NULL; | |
f9fbd2fd | 1435 | |
b2b6c39a AL |
1436 | while (dev != root) { |
1437 | DeviceProperty *prop = NULL; | |
f9fbd2fd | 1438 | |
b2b6c39a | 1439 | g_assert(dev->parent != NULL); |
f9fbd2fd | 1440 | |
b2b6c39a AL |
1441 | QTAILQ_FOREACH(prop, &dev->parent->properties, node) { |
1442 | if (!strstart(prop->type, "child<", NULL)) { | |
1443 | continue; | |
1444 | } | |
f9fbd2fd | 1445 | |
b2b6c39a AL |
1446 | if (prop->opaque == dev) { |
1447 | if (path) { | |
1448 | newpath = g_strdup_printf("%s/%s", prop->name, path); | |
1449 | g_free(path); | |
1450 | path = newpath; | |
1451 | } else { | |
1452 | path = g_strdup(prop->name); | |
1453 | } | |
1454 | break; | |
1455 | } | |
f9fbd2fd AL |
1456 | } |
1457 | ||
b2b6c39a | 1458 | g_assert(prop != NULL); |
f9fbd2fd | 1459 | |
b2b6c39a | 1460 | dev = dev->parent; |
f9fbd2fd AL |
1461 | } |
1462 | ||
f9fbd2fd AL |
1463 | newpath = g_strdup_printf("/%s", path); |
1464 | g_free(path); | |
1465 | ||
1466 | return newpath; | |
1467 | } | |
dc45c21f AL |
1468 | |
1469 | static DeviceState *qdev_resolve_abs_path(DeviceState *parent, | |
1470 | gchar **parts, | |
1471 | int index) | |
1472 | { | |
1473 | DeviceProperty *prop; | |
1474 | DeviceState *child; | |
1475 | ||
1476 | if (parts[index] == NULL) { | |
1477 | return parent; | |
1478 | } | |
1479 | ||
1480 | if (strcmp(parts[index], "") == 0) { | |
1481 | return qdev_resolve_abs_path(parent, parts, index + 1); | |
1482 | } | |
1483 | ||
1484 | prop = qdev_property_find(parent, parts[index]); | |
1485 | if (prop == NULL) { | |
1486 | return NULL; | |
1487 | } | |
1488 | ||
1489 | child = NULL; | |
1490 | if (strstart(prop->type, "link<", NULL)) { | |
1491 | DeviceState **pchild = prop->opaque; | |
1492 | if (*pchild) { | |
1493 | child = *pchild; | |
1494 | } | |
1495 | } else if (strstart(prop->type, "child<", NULL)) { | |
1496 | child = prop->opaque; | |
1497 | } | |
1498 | ||
1499 | if (!child) { | |
1500 | return NULL; | |
1501 | } | |
1502 | ||
1503 | return qdev_resolve_abs_path(child, parts, index + 1); | |
1504 | } | |
1505 | ||
1506 | static DeviceState *qdev_resolve_partial_path(DeviceState *parent, | |
1507 | gchar **parts, | |
1508 | bool *ambiguous) | |
1509 | { | |
1510 | DeviceState *dev; | |
1511 | DeviceProperty *prop; | |
1512 | ||
1513 | dev = qdev_resolve_abs_path(parent, parts, 0); | |
1514 | ||
1515 | QTAILQ_FOREACH(prop, &parent->properties, node) { | |
1516 | DeviceState *found; | |
1517 | ||
1518 | if (!strstart(prop->type, "child<", NULL)) { | |
1519 | continue; | |
1520 | } | |
1521 | ||
1522 | found = qdev_resolve_partial_path(prop->opaque, parts, ambiguous); | |
1523 | if (found) { | |
1524 | if (dev) { | |
1525 | if (ambiguous) { | |
1526 | *ambiguous = true; | |
1527 | } | |
1528 | return NULL; | |
1529 | } | |
1530 | dev = found; | |
1531 | } | |
1532 | ||
1533 | if (ambiguous && *ambiguous) { | |
1534 | return NULL; | |
1535 | } | |
1536 | } | |
1537 | ||
1538 | return dev; | |
1539 | } | |
1540 | ||
1541 | DeviceState *qdev_resolve_path(const char *path, bool *ambiguous) | |
1542 | { | |
1543 | bool partial_path = true; | |
1544 | DeviceState *dev; | |
1545 | gchar **parts; | |
1546 | ||
1547 | parts = g_strsplit(path, "/", 0); | |
1548 | if (parts == NULL || parts[0] == NULL) { | |
1549 | g_strfreev(parts); | |
1550 | return qdev_get_root(); | |
1551 | } | |
1552 | ||
1553 | if (strcmp(parts[0], "") == 0) { | |
1554 | partial_path = false; | |
1555 | } | |
1556 | ||
1557 | if (partial_path) { | |
1558 | if (ambiguous) { | |
1559 | *ambiguous = false; | |
1560 | } | |
1561 | dev = qdev_resolve_partial_path(qdev_get_root(), parts, ambiguous); | |
1562 | } else { | |
1563 | dev = qdev_resolve_abs_path(qdev_get_root(), parts, 1); | |
1564 | } | |
1565 | ||
1566 | g_strfreev(parts); | |
1567 | ||
1568 | return dev; | |
1569 | } | |
1570 | ||
6a146eba AL |
1571 | typedef struct StringProperty |
1572 | { | |
1573 | char *(*get)(DeviceState *, Error **); | |
1574 | void (*set)(DeviceState *, const char *, Error **); | |
1575 | } StringProperty; | |
1576 | ||
1577 | static void qdev_property_get_str(DeviceState *dev, Visitor *v, void *opaque, | |
1578 | const char *name, Error **errp) | |
1579 | { | |
1580 | StringProperty *prop = opaque; | |
1581 | char *value; | |
1582 | ||
1583 | value = prop->get(dev, errp); | |
1584 | if (value) { | |
1585 | visit_type_str(v, &value, name, errp); | |
1586 | g_free(value); | |
1587 | } | |
1588 | } | |
1589 | ||
1590 | static void qdev_property_set_str(DeviceState *dev, Visitor *v, void *opaque, | |
1591 | const char *name, Error **errp) | |
1592 | { | |
1593 | StringProperty *prop = opaque; | |
1594 | char *value; | |
1595 | Error *local_err = NULL; | |
1596 | ||
1597 | visit_type_str(v, &value, name, &local_err); | |
1598 | if (local_err) { | |
1599 | error_propagate(errp, local_err); | |
1600 | return; | |
1601 | } | |
1602 | ||
1603 | prop->set(dev, value, errp); | |
1604 | g_free(value); | |
1605 | } | |
1606 | ||
1607 | static void qdev_property_release_str(DeviceState *dev, const char *name, | |
1608 | void *opaque) | |
1609 | { | |
1610 | StringProperty *prop = opaque; | |
1611 | g_free(prop); | |
1612 | } | |
1613 | ||
1614 | void qdev_property_add_str(DeviceState *dev, const char *name, | |
1615 | char *(*get)(DeviceState *, Error **), | |
1616 | void (*set)(DeviceState *, const char *, Error **), | |
1617 | Error **errp) | |
1618 | { | |
1619 | StringProperty *prop = g_malloc0(sizeof(*prop)); | |
1620 | ||
1621 | prop->get = get; | |
1622 | prop->set = set; | |
1623 | ||
1624 | qdev_property_add(dev, name, "string", | |
1625 | get ? qdev_property_get_str : NULL, | |
1626 | set ? qdev_property_set_str : NULL, | |
1627 | qdev_property_release_str, | |
1628 | prop, errp); | |
1629 | } | |
1de81d28 AL |
1630 | |
1631 | void qdev_machine_init(void) | |
1632 | { | |
1633 | qdev_get_peripheral_anon(); | |
1634 | qdev_get_peripheral(); | |
1635 | } | |
32fea402 | 1636 | |
94afdadc AL |
1637 | void device_reset(DeviceState *dev) |
1638 | { | |
1639 | DeviceClass *klass = DEVICE_GET_CLASS(dev); | |
1640 | ||
1641 | if (klass->reset) { | |
1642 | klass->reset(dev); | |
1643 | } | |
1644 | } | |
1645 | ||
32fea402 AL |
1646 | static TypeInfo device_type_info = { |
1647 | .name = TYPE_DEVICE, | |
1648 | .parent = TYPE_OBJECT, | |
1649 | .instance_size = sizeof(DeviceState), | |
1650 | .abstract = true, | |
1651 | .class_size = sizeof(DeviceClass), | |
1652 | }; | |
1653 | ||
1654 | static void init_qdev(void) | |
1655 | { | |
1656 | type_register_static(&device_type_info); | |
1657 | } | |
1658 | ||
1659 | device_init(init_qdev); |