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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. */ |
4be9f0d1 AL |
46 | const VMStateDescription *qdev_get_vmsd(DeviceState *dev) |
47 | { | |
6e008585 AL |
48 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
49 | return dc->vmsd; | |
4be9f0d1 AL |
50 | } |
51 | ||
52 | BusInfo *qdev_get_bus_info(DeviceState *dev) | |
53 | { | |
6e008585 AL |
54 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
55 | return dc->bus_info; | |
4be9f0d1 AL |
56 | } |
57 | ||
58 | Property *qdev_get_props(DeviceState *dev) | |
59 | { | |
6e008585 AL |
60 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
61 | return dc->props; | |
4be9f0d1 AL |
62 | } |
63 | ||
6acbe4c6 AL |
64 | /* |
65 | * Aliases were a bad idea from the start. Let's keep them | |
66 | * from spreading further. | |
67 | */ | |
68 | typedef struct QDevAlias | |
69 | { | |
70 | const char *typename; | |
71 | const char *alias; | |
72 | } QDevAlias; | |
73 | ||
74 | static const QDevAlias qdev_alias_table[] = { | |
75 | { "virtio-blk-pci", "virtio-blk" }, | |
76 | { "virtio-net-pci", "virtio-net" }, | |
77 | { "virtio-serial-pci", "virtio-serial" }, | |
78 | { "virtio-balloon-pci", "virtio-balloon" }, | |
79 | { "virtio-blk-s390", "virtio-blk" }, | |
80 | { "virtio-net-s390", "virtio-net" }, | |
81 | { "virtio-serial-s390", "virtio-serial" }, | |
82 | { "lsi53c895a", "lsi" }, | |
83 | { "ich9-ahci", "ahci" }, | |
84 | { } | |
85 | }; | |
86 | ||
87 | static const char *qdev_class_get_alias(DeviceClass *dc) | |
88 | { | |
89 | const char *typename = object_class_get_name(OBJECT_CLASS(dc)); | |
90 | int i; | |
91 | ||
92 | for (i = 0; qdev_alias_table[i].typename; i++) { | |
93 | if (strcmp(qdev_alias_table[i].typename, typename) == 0) { | |
94 | return qdev_alias_table[i].alias; | |
95 | } | |
96 | } | |
97 | ||
98 | return NULL; | |
99 | } | |
100 | ||
101 | static bool qdev_class_has_alias(DeviceClass *dc) | |
102 | { | |
103 | return (qdev_class_get_alias(dc) != NULL); | |
104 | } | |
105 | ||
4be9f0d1 AL |
106 | const char *qdev_fw_name(DeviceState *dev) |
107 | { | |
6e008585 | 108 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
4be9f0d1 | 109 | |
6e008585 AL |
110 | if (dc->fw_name) { |
111 | return dc->fw_name; | |
6acbe4c6 AL |
112 | } else if (qdev_class_has_alias(dc)) { |
113 | return qdev_class_get_alias(dc); | |
4be9f0d1 AL |
114 | } |
115 | ||
116 | return object_get_typename(OBJECT(dev)); | |
117 | } | |
118 | ||
a369da5f BS |
119 | bool qdev_exists(const char *name) |
120 | { | |
212ad111 | 121 | return !!object_class_by_name(name); |
a369da5f | 122 | } |
40021f08 | 123 | |
ca2cc788 PB |
124 | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
125 | Error **errp); | |
126 | ||
18b6dade | 127 | static DeviceState *qdev_create_from_info(BusState *bus, const char *typename) |
0c17542d MA |
128 | { |
129 | DeviceState *dev; | |
a5296ca9 | 130 | Property *prop; |
0c17542d | 131 | |
18b6dade | 132 | dev = DEVICE(object_new(typename)); |
0c17542d | 133 | dev->parent_bus = bus; |
6e008585 | 134 | qdev_prop_set_defaults(dev, qdev_get_props(dev)); |
0c17542d MA |
135 | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
136 | qdev_prop_set_globals(dev); | |
d8bb00d6 | 137 | QTAILQ_INSERT_HEAD(&bus->children, dev, sibling); |
0c17542d MA |
138 | if (qdev_hotplug) { |
139 | assert(bus->allow_hotplug); | |
140 | dev->hotplugged = 1; | |
0ac8ef71 | 141 | qdev_hot_added = true; |
0c17542d | 142 | } |
4d2ffa08 | 143 | dev->instance_id_alias = -1; |
44677ded | 144 | QTAILQ_INIT(&dev->properties); |
0c17542d | 145 | dev->state = DEV_STATE_CREATED; |
a5296ca9 | 146 | |
6e008585 | 147 | for (prop = qdev_get_props(dev); prop && prop->name; prop++) { |
a5296ca9 | 148 | qdev_property_add_legacy(dev, prop, NULL); |
ca2cc788 | 149 | qdev_property_add_static(dev, prop, NULL); |
a5296ca9 AL |
150 | } |
151 | ||
6e008585 | 152 | for (prop = qdev_get_bus_info(dev)->props; prop && prop->name; prop++) { |
a5296ca9 | 153 | qdev_property_add_legacy(dev, prop, NULL); |
ca2cc788 | 154 | qdev_property_add_static(dev, prop, NULL); |
a5296ca9 AL |
155 | } |
156 | ||
cd34d667 AL |
157 | qdev_property_add_str(dev, "type", qdev_get_type, NULL, NULL); |
158 | ||
0c17542d MA |
159 | return dev; |
160 | } | |
161 | ||
aae9460e PB |
162 | /* Create a new device. This only initializes the device state structure |
163 | and allows properties to be set. qdev_init should be called to | |
164 | initialize the actual device emulation. */ | |
02e2da45 | 165 | DeviceState *qdev_create(BusState *bus, const char *name) |
0bcdeda7 BS |
166 | { |
167 | DeviceState *dev; | |
168 | ||
169 | dev = qdev_try_create(bus, name); | |
170 | if (!dev) { | |
e92714c7 PM |
171 | if (bus) { |
172 | hw_error("Unknown device '%s' for bus '%s'\n", name, | |
173 | bus->info->name); | |
174 | } else { | |
175 | hw_error("Unknown device '%s' for default sysbus\n", name); | |
176 | } | |
0bcdeda7 BS |
177 | } |
178 | ||
179 | return dev; | |
180 | } | |
181 | ||
182 | DeviceState *qdev_try_create(BusState *bus, const char *name) | |
aae9460e | 183 | { |
10c4c98a | 184 | if (!bus) { |
68694897 | 185 | bus = sysbus_get_default(); |
10c4c98a GH |
186 | } |
187 | ||
18b6dade | 188 | return qdev_create_from_info(bus, name); |
aae9460e PB |
189 | } |
190 | ||
212ad111 | 191 | static void qdev_print_devinfo(ObjectClass *klass, void *opaque) |
1b524b04 | 192 | { |
212ad111 AL |
193 | DeviceClass *dc; |
194 | bool *show_no_user = opaque; | |
195 | ||
196 | dc = (DeviceClass *)object_class_dynamic_cast(klass, TYPE_DEVICE); | |
197 | ||
198 | if (!dc || (show_no_user && !*show_no_user && dc->no_user)) { | |
199 | return; | |
22f2e344 | 200 | } |
212ad111 AL |
201 | |
202 | error_printf("name \"%s\"", object_class_get_name(klass)); | |
203 | if (dc->bus_info) { | |
204 | error_printf(", bus %s", dc->bus_info->name); | |
22f2e344 | 205 | } |
6acbe4c6 AL |
206 | if (qdev_class_has_alias(dc)) { |
207 | error_printf(", alias \"%s\"", qdev_class_get_alias(dc)); | |
212ad111 AL |
208 | } |
209 | if (dc->desc) { | |
210 | error_printf(", desc \"%s\"", dc->desc); | |
211 | } | |
212 | if (dc->no_user) { | |
8a9662ca | 213 | error_printf(", no-user"); |
22f2e344 | 214 | } |
8a9662ca | 215 | error_printf("\n"); |
1b524b04 GH |
216 | } |
217 | ||
f31d07d1 | 218 | static int set_property(const char *name, const char *value, void *opaque) |
8ffb1bcf | 219 | { |
f31d07d1 GH |
220 | DeviceState *dev = opaque; |
221 | ||
222 | if (strcmp(name, "driver") == 0) | |
223 | return 0; | |
224 | if (strcmp(name, "bus") == 0) | |
225 | return 0; | |
226 | ||
3df04ac3 | 227 | if (qdev_prop_parse(dev, name, value) == -1) { |
f31d07d1 GH |
228 | return -1; |
229 | } | |
230 | return 0; | |
231 | } | |
232 | ||
6acbe4c6 AL |
233 | static const char *find_typename_by_alias(const char *alias) |
234 | { | |
235 | int i; | |
236 | ||
237 | for (i = 0; qdev_alias_table[i].alias; i++) { | |
238 | if (strcmp(qdev_alias_table[i].alias, alias) == 0) { | |
239 | return qdev_alias_table[i].typename; | |
240 | } | |
241 | } | |
242 | ||
243 | return NULL; | |
244 | } | |
245 | ||
ff952ba2 MA |
246 | int qdev_device_help(QemuOpts *opts) |
247 | { | |
248 | const char *driver; | |
08350cf0 | 249 | Property *prop; |
212ad111 AL |
250 | ObjectClass *klass; |
251 | DeviceClass *info; | |
ff952ba2 MA |
252 | |
253 | driver = qemu_opt_get(opts, "driver"); | |
254 | if (driver && !strcmp(driver, "?")) { | |
212ad111 AL |
255 | bool show_no_user = false; |
256 | object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, &show_no_user); | |
ff952ba2 MA |
257 | return 1; |
258 | } | |
259 | ||
542379f4 | 260 | if (!driver || !qemu_opt_get(opts, "?")) { |
08350cf0 MA |
261 | return 0; |
262 | } | |
263 | ||
212ad111 | 264 | klass = object_class_by_name(driver); |
6acbe4c6 AL |
265 | if (!klass) { |
266 | const char *typename = find_typename_by_alias(driver); | |
267 | ||
268 | if (typename) { | |
269 | driver = typename; | |
270 | klass = object_class_by_name(driver); | |
271 | } | |
272 | } | |
273 | ||
212ad111 | 274 | if (!klass) { |
08350cf0 MA |
275 | return 0; |
276 | } | |
212ad111 | 277 | info = DEVICE_CLASS(klass); |
08350cf0 MA |
278 | |
279 | for (prop = info->props; prop && prop->name; prop++) { | |
036f7166 MA |
280 | /* |
281 | * TODO Properties without a parser are just for dirty hacks. | |
282 | * qdev_prop_ptr is the only such PropertyInfo. It's marked | |
283 | * for removal. This conditional should be removed along with | |
284 | * it. | |
285 | */ | |
286 | if (!prop->info->parse) { | |
287 | continue; /* no way to set it, don't show */ | |
288 | } | |
212ad111 | 289 | error_printf("%s.%s=%s\n", driver, prop->name, |
cafe5bdb | 290 | prop->info->legacy_name ?: prop->info->name); |
a8467c7a GH |
291 | } |
292 | for (prop = info->bus_info->props; prop && prop->name; prop++) { | |
293 | if (!prop->info->parse) { | |
294 | continue; /* no way to set it, don't show */ | |
295 | } | |
212ad111 | 296 | error_printf("%s.%s=%s\n", driver, prop->name, |
cafe5bdb | 297 | prop->info->legacy_name ?: prop->info->name); |
08350cf0 MA |
298 | } |
299 | return 1; | |
ff952ba2 MA |
300 | } |
301 | ||
1bdaacb1 AL |
302 | static DeviceState *qdev_get_peripheral(void) |
303 | { | |
304 | static DeviceState *dev; | |
305 | ||
306 | if (dev == NULL) { | |
307 | dev = qdev_create(NULL, "container"); | |
308 | qdev_property_add_child(qdev_get_root(), "peripheral", dev, NULL); | |
309 | qdev_init_nofail(dev); | |
310 | } | |
311 | ||
312 | return dev; | |
313 | } | |
314 | ||
8eb02831 AL |
315 | static DeviceState *qdev_get_peripheral_anon(void) |
316 | { | |
317 | static DeviceState *dev; | |
318 | ||
319 | if (dev == NULL) { | |
320 | dev = qdev_create(NULL, "container"); | |
321 | qdev_property_add_child(qdev_get_root(), "peripheral-anon", dev, NULL); | |
322 | qdev_init_nofail(dev); | |
323 | } | |
324 | ||
325 | return dev; | |
326 | } | |
327 | ||
f31d07d1 GH |
328 | DeviceState *qdev_device_add(QemuOpts *opts) |
329 | { | |
6acbe4c6 | 330 | ObjectClass *obj; |
18b6dade | 331 | DeviceClass *k; |
f31d07d1 | 332 | const char *driver, *path, *id; |
8ffb1bcf GH |
333 | DeviceState *qdev; |
334 | BusState *bus; | |
8ffb1bcf | 335 | |
f31d07d1 GH |
336 | driver = qemu_opt_get(opts, "driver"); |
337 | if (!driver) { | |
0204276b | 338 | qerror_report(QERR_MISSING_PARAMETER, "driver"); |
8ffb1bcf GH |
339 | return NULL; |
340 | } | |
f31d07d1 GH |
341 | |
342 | /* find driver */ | |
6acbe4c6 AL |
343 | obj = object_class_by_name(driver); |
344 | if (!obj) { | |
345 | const char *typename = find_typename_by_alias(driver); | |
346 | ||
347 | if (typename) { | |
348 | driver = typename; | |
349 | obj = object_class_by_name(driver); | |
350 | } | |
351 | } | |
352 | ||
353 | if (!obj) { | |
354 | qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "device type"); | |
355 | return NULL; | |
356 | } | |
357 | ||
358 | k = DEVICE_CLASS(obj); | |
8ffb1bcf | 359 | |
f31d07d1 GH |
360 | /* find bus */ |
361 | path = qemu_opt_get(opts, "bus"); | |
362 | if (path != NULL) { | |
8ffb1bcf | 363 | bus = qbus_find(path); |
ac8dae67 MA |
364 | if (!bus) { |
365 | return NULL; | |
366 | } | |
18b6dade | 367 | if (bus->info != k->bus_info) { |
0204276b MA |
368 | qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
369 | driver, bus->info->name); | |
327867b6 MA |
370 | return NULL; |
371 | } | |
8ffb1bcf | 372 | } else { |
18b6dade | 373 | bus = qbus_find_recursive(main_system_bus, NULL, k->bus_info); |
ac8dae67 | 374 | if (!bus) { |
0204276b | 375 | qerror_report(QERR_NO_BUS_FOR_DEVICE, |
18b6dade | 376 | driver, k->bus_info->name); |
ac8dae67 MA |
377 | return NULL; |
378 | } | |
75570088 | 379 | } |
3418bd25 | 380 | if (qdev_hotplug && !bus->allow_hotplug) { |
0204276b | 381 | qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
3418bd25 GH |
382 | return NULL; |
383 | } | |
8ffb1bcf | 384 | |
f31d07d1 | 385 | /* create device, set properties */ |
18b6dade | 386 | qdev = qdev_create_from_info(bus, driver); |
f31d07d1 GH |
387 | id = qemu_opts_id(opts); |
388 | if (id) { | |
389 | qdev->id = id; | |
1bdaacb1 | 390 | qdev_property_add_child(qdev_get_peripheral(), qdev->id, qdev, NULL); |
8eb02831 AL |
391 | } else { |
392 | static int anon_count; | |
393 | gchar *name = g_strdup_printf("device[%d]", anon_count++); | |
394 | qdev_property_add_child(qdev_get_peripheral_anon(), name, | |
395 | qdev, NULL); | |
396 | g_free(name); | |
397 | } | |
f31d07d1 GH |
398 | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
399 | qdev_free(qdev); | |
400 | return NULL; | |
8ffb1bcf | 401 | } |
5c17ca25 | 402 | if (qdev_init(qdev) < 0) { |
0204276b | 403 | qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
81a322d4 GH |
404 | return NULL; |
405 | } | |
ef80b466 | 406 | qdev->opts = opts; |
8ffb1bcf GH |
407 | return qdev; |
408 | } | |
409 | ||
aae9460e PB |
410 | /* Initialize a device. Device properties should be set before calling |
411 | this function. IRQs and MMIO regions should be connected/mapped after | |
18cfeb52 MA |
412 | calling this function. |
413 | On failure, destroy the device and return negative value. | |
414 | Return 0 on success. */ | |
81a322d4 | 415 | int qdev_init(DeviceState *dev) |
aae9460e | 416 | { |
6e008585 | 417 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
959f733a GH |
418 | int rc; |
419 | ||
131ec1bd | 420 | assert(dev->state == DEV_STATE_CREATED); |
6e008585 | 421 | |
d307af79 | 422 | rc = dc->init(dev); |
18cfeb52 MA |
423 | if (rc < 0) { |
424 | qdev_free(dev); | |
959f733a | 425 | return rc; |
18cfeb52 | 426 | } |
6e008585 AL |
427 | if (qdev_get_vmsd(dev)) { |
428 | vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev, | |
4d2ffa08 JK |
429 | dev->instance_id_alias, |
430 | dev->alias_required_for_version); | |
431 | } | |
131ec1bd | 432 | dev->state = DEV_STATE_INITIALIZED; |
94afdadc AL |
433 | if (dev->hotplugged) { |
434 | device_reset(dev); | |
5ab28c83 | 435 | } |
959f733a | 436 | return 0; |
02e2da45 PB |
437 | } |
438 | ||
4d2ffa08 JK |
439 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
440 | int required_for_version) | |
441 | { | |
442 | assert(dev->state == DEV_STATE_CREATED); | |
443 | dev->instance_id_alias = alias_id; | |
444 | dev->alias_required_for_version = required_for_version; | |
445 | } | |
446 | ||
3418bd25 GH |
447 | int qdev_unplug(DeviceState *dev) |
448 | { | |
6e008585 AL |
449 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
450 | ||
3418bd25 | 451 | if (!dev->parent_bus->allow_hotplug) { |
cc601cb7 | 452 | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
3418bd25 GH |
453 | return -1; |
454 | } | |
6e008585 | 455 | assert(dc->unplug != NULL); |
593831de | 456 | |
0ac8ef71 AW |
457 | qdev_hot_removed = true; |
458 | ||
6e008585 | 459 | return dc->unplug(dev); |
3418bd25 GH |
460 | } |
461 | ||
ec990eb6 AL |
462 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
463 | { | |
94afdadc | 464 | device_reset(dev); |
ec990eb6 AL |
465 | |
466 | return 0; | |
467 | } | |
468 | ||
469 | BusState *sysbus_get_default(void) | |
470 | { | |
68694897 | 471 | if (!main_system_bus) { |
2da8bb92 | 472 | main_system_bus_create(); |
68694897 | 473 | } |
ec990eb6 AL |
474 | return main_system_bus; |
475 | } | |
476 | ||
b4694b7c IY |
477 | static int qbus_reset_one(BusState *bus, void *opaque) |
478 | { | |
479 | if (bus->info->reset) { | |
480 | return bus->info->reset(bus); | |
481 | } | |
482 | return 0; | |
483 | } | |
484 | ||
5af0a04b IY |
485 | void qdev_reset_all(DeviceState *dev) |
486 | { | |
487 | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL); | |
488 | } | |
489 | ||
80376c3f IY |
490 | void qbus_reset_all_fn(void *opaque) |
491 | { | |
492 | BusState *bus = opaque; | |
f530cce3 | 493 | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL); |
80376c3f IY |
494 | } |
495 | ||
3418bd25 GH |
496 | /* can be used as ->unplug() callback for the simple cases */ |
497 | int qdev_simple_unplug_cb(DeviceState *dev) | |
498 | { | |
499 | /* just zap it */ | |
500 | qdev_free(dev); | |
501 | return 0; | |
502 | } | |
503 | ||
3b29a101 MT |
504 | |
505 | /* Like qdev_init(), but terminate program via error_report() instead of | |
e23a1b33 MA |
506 | returning an error value. This is okay during machine creation. |
507 | Don't use for hotplug, because there callers need to recover from | |
508 | failure. Exception: if you know the device's init() callback can't | |
509 | fail, then qdev_init_nofail() can't fail either, and is therefore | |
510 | usable even then. But relying on the device implementation that | |
511 | way is somewhat unclean, and best avoided. */ | |
512 | void qdev_init_nofail(DeviceState *dev) | |
513 | { | |
bd6c9a61 | 514 | if (qdev_init(dev) < 0) { |
6e008585 AL |
515 | error_report("Initialization of device %s failed", |
516 | object_get_typename(OBJECT(dev))); | |
bd6c9a61 MA |
517 | exit(1); |
518 | } | |
e23a1b33 MA |
519 | } |
520 | ||
44677ded AL |
521 | static void qdev_property_del_all(DeviceState *dev) |
522 | { | |
523 | while (!QTAILQ_EMPTY(&dev->properties)) { | |
524 | DeviceProperty *prop = QTAILQ_FIRST(&dev->properties); | |
525 | ||
526 | QTAILQ_REMOVE(&dev->properties, prop, node); | |
527 | ||
528 | if (prop->release) { | |
529 | prop->release(dev, prop->name, prop->opaque); | |
530 | } | |
531 | ||
532 | g_free(prop->name); | |
533 | g_free(prop->type); | |
534 | g_free(prop); | |
535 | } | |
536 | } | |
537 | ||
024a6fbd AL |
538 | static void qdev_property_del_child(DeviceState *dev, DeviceState *child, Error **errp) |
539 | { | |
540 | DeviceProperty *prop; | |
541 | ||
542 | QTAILQ_FOREACH(prop, &dev->properties, node) { | |
543 | if (strstart(prop->type, "child<", NULL) && prop->opaque == child) { | |
544 | break; | |
545 | } | |
546 | } | |
547 | ||
548 | g_assert(prop != NULL); | |
549 | ||
550 | QTAILQ_REMOVE(&dev->properties, prop, node); | |
551 | ||
552 | if (prop->release) { | |
553 | prop->release(dev, prop->name, prop->opaque); | |
554 | } | |
555 | ||
556 | g_free(prop->name); | |
557 | g_free(prop->type); | |
558 | g_free(prop); | |
559 | } | |
560 | ||
02e2da45 PB |
561 | /* Unlink device from bus and free the structure. */ |
562 | void qdev_free(DeviceState *dev) | |
563 | { | |
131ec1bd | 564 | BusState *bus; |
d21357df | 565 | Property *prop; |
6e008585 | 566 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
131ec1bd | 567 | |
44677ded AL |
568 | qdev_property_del_all(dev); |
569 | ||
131ec1bd GH |
570 | if (dev->state == DEV_STATE_INITIALIZED) { |
571 | while (dev->num_child_bus) { | |
572 | bus = QLIST_FIRST(&dev->child_bus); | |
573 | qbus_free(bus); | |
574 | } | |
6e008585 AL |
575 | if (qdev_get_vmsd(dev)) { |
576 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); | |
577 | } | |
578 | if (dc->exit) { | |
579 | dc->exit(dev); | |
580 | } | |
581 | if (dev->opts) { | |
ef80b466 | 582 | qemu_opts_del(dev->opts); |
6e008585 | 583 | } |
131ec1bd | 584 | } |
d8bb00d6 | 585 | QTAILQ_REMOVE(&dev->parent_bus->children, dev, sibling); |
6e008585 | 586 | for (prop = qdev_get_props(dev); prop && prop->name; prop++) { |
d21357df MA |
587 | if (prop->info->free) { |
588 | prop->info->free(dev, prop); | |
589 | } | |
590 | } | |
024a6fbd AL |
591 | if (dev->parent) { |
592 | qdev_property_del_child(dev->parent, dev, NULL); | |
593 | } | |
594 | if (dev->ref != 0) { | |
595 | qerror_report(QERR_DEVICE_IN_USE, dev->id?:""); | |
596 | } | |
32fea402 | 597 | object_delete(OBJECT(dev)); |
aae9460e PB |
598 | } |
599 | ||
3418bd25 GH |
600 | void qdev_machine_creation_done(void) |
601 | { | |
602 | /* | |
603 | * ok, initial machine setup is done, starting from now we can | |
604 | * only create hotpluggable devices | |
605 | */ | |
606 | qdev_hotplug = 1; | |
607 | } | |
608 | ||
0ac8ef71 AW |
609 | bool qdev_machine_modified(void) |
610 | { | |
611 | return qdev_hot_added || qdev_hot_removed; | |
612 | } | |
613 | ||
aae9460e PB |
614 | /* Get a character (serial) device interface. */ |
615 | CharDriverState *qdev_init_chardev(DeviceState *dev) | |
616 | { | |
617 | static int next_serial; | |
98b19252 AS |
618 | |
619 | /* FIXME: This function needs to go away: use chardev properties! */ | |
620 | return serial_hds[next_serial++]; | |
aae9460e PB |
621 | } |
622 | ||
02e2da45 | 623 | BusState *qdev_get_parent_bus(DeviceState *dev) |
aae9460e | 624 | { |
02e2da45 | 625 | return dev->parent_bus; |
aae9460e PB |
626 | } |
627 | ||
aae9460e PB |
628 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
629 | { | |
630 | assert(dev->num_gpio_in == 0); | |
631 | dev->num_gpio_in = n; | |
632 | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); | |
633 | } | |
634 | ||
635 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) | |
636 | { | |
637 | assert(dev->num_gpio_out == 0); | |
638 | dev->num_gpio_out = n; | |
639 | dev->gpio_out = pins; | |
640 | } | |
641 | ||
642 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) | |
643 | { | |
644 | assert(n >= 0 && n < dev->num_gpio_in); | |
645 | return dev->gpio_in[n]; | |
646 | } | |
647 | ||
648 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) | |
649 | { | |
650 | assert(n >= 0 && n < dev->num_gpio_out); | |
651 | dev->gpio_out[n] = pin; | |
652 | } | |
653 | ||
ed16ab5a GH |
654 | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd) |
655 | { | |
6eed1856 | 656 | qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a); |
ed16ab5a GH |
657 | if (nd->vlan) |
658 | qdev_prop_set_vlan(dev, "vlan", nd->vlan); | |
659 | if (nd->netdev) | |
660 | qdev_prop_set_netdev(dev, "netdev", nd->netdev); | |
75422b0d | 661 | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && |
97b15621 GH |
662 | qdev_prop_exists(dev, "vectors")) { |
663 | qdev_prop_set_uint32(dev, "vectors", nd->nvectors); | |
664 | } | |
48e2faf2 | 665 | nd->instantiated = 1; |
ed16ab5a GH |
666 | } |
667 | ||
02e2da45 | 668 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
4d6ae674 | 669 | { |
02e2da45 | 670 | BusState *bus; |
4d6ae674 | 671 | |
72cf2d4f | 672 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
4d6ae674 | 673 | if (strcmp(name, bus->name) == 0) { |
02e2da45 | 674 | return bus; |
4d6ae674 PB |
675 | } |
676 | } | |
677 | return NULL; | |
678 | } | |
679 | ||
81699d8a AL |
680 | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn, |
681 | qbus_walkerfn *busfn, void *opaque) | |
682 | { | |
683 | DeviceState *dev; | |
684 | int err; | |
685 | ||
686 | if (busfn) { | |
687 | err = busfn(bus, opaque); | |
688 | if (err) { | |
689 | return err; | |
690 | } | |
691 | } | |
692 | ||
d8bb00d6 | 693 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
81699d8a AL |
694 | err = qdev_walk_children(dev, devfn, busfn, opaque); |
695 | if (err < 0) { | |
696 | return err; | |
697 | } | |
698 | } | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
703 | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn, | |
704 | qbus_walkerfn *busfn, void *opaque) | |
705 | { | |
706 | BusState *bus; | |
707 | int err; | |
708 | ||
709 | if (devfn) { | |
710 | err = devfn(dev, opaque); | |
711 | if (err) { | |
712 | return err; | |
713 | } | |
714 | } | |
715 | ||
716 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
717 | err = qbus_walk_children(bus, devfn, busfn, opaque); | |
718 | if (err < 0) { | |
719 | return err; | |
720 | } | |
721 | } | |
722 | ||
723 | return 0; | |
724 | } | |
725 | ||
8ffb1bcf GH |
726 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
727 | const BusInfo *info) | |
728 | { | |
729 | DeviceState *dev; | |
730 | BusState *child, *ret; | |
731 | int match = 1; | |
732 | ||
733 | if (name && (strcmp(bus->name, name) != 0)) { | |
734 | match = 0; | |
735 | } | |
736 | if (info && (bus->info != info)) { | |
737 | match = 0; | |
738 | } | |
739 | if (match) { | |
740 | return bus; | |
741 | } | |
742 | ||
d8bb00d6 | 743 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
72cf2d4f | 744 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
8ffb1bcf GH |
745 | ret = qbus_find_recursive(child, name, info); |
746 | if (ret) { | |
747 | return ret; | |
748 | } | |
749 | } | |
750 | } | |
751 | return NULL; | |
752 | } | |
753 | ||
a2ee6b4f | 754 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
3418bd25 GH |
755 | { |
756 | DeviceState *dev, *ret; | |
757 | BusState *child; | |
758 | ||
d8bb00d6 | 759 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
3418bd25 GH |
760 | if (dev->id && strcmp(dev->id, id) == 0) |
761 | return dev; | |
762 | QLIST_FOREACH(child, &dev->child_bus, sibling) { | |
763 | ret = qdev_find_recursive(child, id); | |
764 | if (ret) { | |
765 | return ret; | |
766 | } | |
767 | } | |
768 | } | |
769 | return NULL; | |
770 | } | |
771 | ||
53db16b5 | 772 | static void qbus_list_bus(DeviceState *dev) |
8ffb1bcf GH |
773 | { |
774 | BusState *child; | |
775 | const char *sep = " "; | |
8ffb1bcf | 776 | |
53db16b5 | 777 | error_printf("child busses at \"%s\":", |
f79f2bfc | 778 | dev->id ? dev->id : object_get_typename(OBJECT(dev))); |
72cf2d4f | 779 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
53db16b5 | 780 | error_printf("%s\"%s\"", sep, child->name); |
8ffb1bcf GH |
781 | sep = ", "; |
782 | } | |
53db16b5 | 783 | error_printf("\n"); |
8ffb1bcf GH |
784 | } |
785 | ||
53db16b5 | 786 | static void qbus_list_dev(BusState *bus) |
8ffb1bcf GH |
787 | { |
788 | DeviceState *dev; | |
789 | const char *sep = " "; | |
8ffb1bcf | 790 | |
53db16b5 | 791 | error_printf("devices at \"%s\":", bus->name); |
d8bb00d6 | 792 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
f79f2bfc | 793 | error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev))); |
8ffb1bcf | 794 | if (dev->id) |
53db16b5 | 795 | error_printf("/\"%s\"", dev->id); |
8ffb1bcf GH |
796 | sep = ", "; |
797 | } | |
53db16b5 | 798 | error_printf("\n"); |
8ffb1bcf GH |
799 | } |
800 | ||
801 | static BusState *qbus_find_bus(DeviceState *dev, char *elem) | |
802 | { | |
803 | BusState *child; | |
804 | ||
72cf2d4f | 805 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
8ffb1bcf GH |
806 | if (strcmp(child->name, elem) == 0) { |
807 | return child; | |
808 | } | |
809 | } | |
810 | return NULL; | |
811 | } | |
812 | ||
813 | static DeviceState *qbus_find_dev(BusState *bus, char *elem) | |
814 | { | |
815 | DeviceState *dev; | |
816 | ||
817 | /* | |
818 | * try to match in order: | |
819 | * (1) instance id, if present | |
820 | * (2) driver name | |
821 | * (3) driver alias, if present | |
822 | */ | |
d8bb00d6 | 823 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
8ffb1bcf GH |
824 | if (dev->id && strcmp(dev->id, elem) == 0) { |
825 | return dev; | |
826 | } | |
827 | } | |
d8bb00d6 | 828 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
f79f2bfc | 829 | if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) { |
8ffb1bcf GH |
830 | return dev; |
831 | } | |
832 | } | |
d8bb00d6 | 833 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
6e008585 AL |
834 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
835 | ||
6acbe4c6 AL |
836 | if (qdev_class_has_alias(dc) && |
837 | strcmp(qdev_class_get_alias(dc), elem) == 0) { | |
8ffb1bcf GH |
838 | return dev; |
839 | } | |
840 | } | |
841 | return NULL; | |
842 | } | |
843 | ||
844 | static BusState *qbus_find(const char *path) | |
845 | { | |
846 | DeviceState *dev; | |
847 | BusState *bus; | |
53db16b5 | 848 | char elem[128]; |
8ffb1bcf GH |
849 | int pos, len; |
850 | ||
851 | /* find start element */ | |
852 | if (path[0] == '/') { | |
853 | bus = main_system_bus; | |
854 | pos = 0; | |
855 | } else { | |
856 | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { | |
fc98eb43 MA |
857 | assert(!path[0]); |
858 | elem[0] = len = 0; | |
8ffb1bcf GH |
859 | } |
860 | bus = qbus_find_recursive(main_system_bus, elem, NULL); | |
861 | if (!bus) { | |
ac8dae67 | 862 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
8ffb1bcf GH |
863 | return NULL; |
864 | } | |
865 | pos = len; | |
866 | } | |
867 | ||
868 | for (;;) { | |
fc98eb43 MA |
869 | assert(path[pos] == '/' || !path[pos]); |
870 | while (path[pos] == '/') { | |
871 | pos++; | |
872 | } | |
8ffb1bcf | 873 | if (path[pos] == '\0') { |
8ffb1bcf GH |
874 | return bus; |
875 | } | |
876 | ||
877 | /* find device */ | |
fc98eb43 MA |
878 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
879 | assert(0); | |
880 | elem[0] = len = 0; | |
8ffb1bcf GH |
881 | } |
882 | pos += len; | |
883 | dev = qbus_find_dev(bus, elem); | |
884 | if (!dev) { | |
ac8dae67 | 885 | qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
8bc27249 MA |
886 | if (!monitor_cur_is_qmp()) { |
887 | qbus_list_dev(bus); | |
888 | } | |
8ffb1bcf GH |
889 | return NULL; |
890 | } | |
fc98eb43 MA |
891 | |
892 | assert(path[pos] == '/' || !path[pos]); | |
893 | while (path[pos] == '/') { | |
894 | pos++; | |
895 | } | |
8ffb1bcf GH |
896 | if (path[pos] == '\0') { |
897 | /* last specified element is a device. If it has exactly | |
898 | * one child bus accept it nevertheless */ | |
899 | switch (dev->num_child_bus) { | |
900 | case 0: | |
ac8dae67 | 901 | qerror_report(QERR_DEVICE_NO_BUS, elem); |
8ffb1bcf GH |
902 | return NULL; |
903 | case 1: | |
72cf2d4f | 904 | return QLIST_FIRST(&dev->child_bus); |
8ffb1bcf | 905 | default: |
ac8dae67 | 906 | qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
8bc27249 MA |
907 | if (!monitor_cur_is_qmp()) { |
908 | qbus_list_bus(dev); | |
909 | } | |
8ffb1bcf GH |
910 | return NULL; |
911 | } | |
912 | } | |
913 | ||
914 | /* find bus */ | |
fc98eb43 MA |
915 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
916 | assert(0); | |
917 | elem[0] = len = 0; | |
8ffb1bcf GH |
918 | } |
919 | pos += len; | |
920 | bus = qbus_find_bus(dev, elem); | |
921 | if (!bus) { | |
ac8dae67 | 922 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
8bc27249 MA |
923 | if (!monitor_cur_is_qmp()) { |
924 | qbus_list_bus(dev); | |
925 | } | |
8ffb1bcf GH |
926 | return NULL; |
927 | } | |
928 | } | |
929 | } | |
930 | ||
cd739fb6 GH |
931 | void qbus_create_inplace(BusState *bus, BusInfo *info, |
932 | DeviceState *parent, const char *name) | |
02e2da45 | 933 | { |
d271de9f GH |
934 | char *buf; |
935 | int i,len; | |
02e2da45 | 936 | |
10c4c98a | 937 | bus->info = info; |
02e2da45 | 938 | bus->parent = parent; |
d271de9f GH |
939 | |
940 | if (name) { | |
941 | /* use supplied name */ | |
7267c094 | 942 | bus->name = g_strdup(name); |
d271de9f GH |
943 | } else if (parent && parent->id) { |
944 | /* parent device has id -> use it for bus name */ | |
945 | len = strlen(parent->id) + 16; | |
7267c094 | 946 | buf = g_malloc(len); |
d271de9f GH |
947 | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus); |
948 | bus->name = buf; | |
949 | } else { | |
950 | /* no id -> use lowercase bus type for bus name */ | |
951 | len = strlen(info->name) + 16; | |
7267c094 | 952 | buf = g_malloc(len); |
d271de9f GH |
953 | len = snprintf(buf, len, "%s.%d", info->name, |
954 | parent ? parent->num_child_bus : 0); | |
955 | for (i = 0; i < len; i++) | |
bb87ece5 | 956 | buf[i] = qemu_tolower(buf[i]); |
d271de9f GH |
957 | bus->name = buf; |
958 | } | |
959 | ||
d8bb00d6 | 960 | QTAILQ_INIT(&bus->children); |
02e2da45 | 961 | if (parent) { |
72cf2d4f | 962 | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
d271de9f | 963 | parent->num_child_bus++; |
80376c3f IY |
964 | } else if (bus != main_system_bus) { |
965 | /* TODO: once all bus devices are qdevified, | |
966 | only reset handler for main_system_bus should be registered here. */ | |
967 | qemu_register_reset(qbus_reset_all_fn, bus); | |
02e2da45 | 968 | } |
cd739fb6 GH |
969 | } |
970 | ||
971 | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) | |
972 | { | |
973 | BusState *bus; | |
974 | ||
7267c094 | 975 | bus = g_malloc0(info->size); |
cd739fb6 GH |
976 | bus->qdev_allocated = 1; |
977 | qbus_create_inplace(bus, info, parent, name); | |
02e2da45 PB |
978 | return bus; |
979 | } | |
cae4956e | 980 | |
2da8bb92 IY |
981 | static void main_system_bus_create(void) |
982 | { | |
983 | /* assign main_system_bus before qbus_create_inplace() | |
984 | * in order to make "if (bus != main_system_bus)" work */ | |
7267c094 | 985 | main_system_bus = g_malloc0(system_bus_info.size); |
2da8bb92 IY |
986 | main_system_bus->qdev_allocated = 1; |
987 | qbus_create_inplace(main_system_bus, &system_bus_info, NULL, | |
988 | "main-system-bus"); | |
989 | } | |
990 | ||
131ec1bd GH |
991 | void qbus_free(BusState *bus) |
992 | { | |
993 | DeviceState *dev; | |
994 | ||
d8bb00d6 | 995 | while ((dev = QTAILQ_FIRST(&bus->children)) != NULL) { |
131ec1bd GH |
996 | qdev_free(dev); |
997 | } | |
998 | if (bus->parent) { | |
999 | QLIST_REMOVE(bus, sibling); | |
1000 | bus->parent->num_child_bus--; | |
80376c3f IY |
1001 | } else { |
1002 | assert(bus != main_system_bus); /* main_system_bus is never freed */ | |
1003 | qemu_unregister_reset(qbus_reset_all_fn, bus); | |
131ec1bd | 1004 | } |
7267c094 | 1005 | g_free((void*)bus->name); |
131ec1bd | 1006 | if (bus->qdev_allocated) { |
7267c094 | 1007 | g_free(bus); |
131ec1bd GH |
1008 | } |
1009 | } | |
1010 | ||
cae4956e GH |
1011 | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
1012 | static void qbus_print(Monitor *mon, BusState *bus, int indent); | |
1013 | ||
ee6847d1 GH |
1014 | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
1015 | const char *prefix, int indent) | |
1016 | { | |
1017 | char buf[64]; | |
1018 | ||
1019 | if (!props) | |
1020 | return; | |
1021 | while (props->name) { | |
036f7166 MA |
1022 | /* |
1023 | * TODO Properties without a print method are just for dirty | |
1024 | * hacks. qdev_prop_ptr is the only such PropertyInfo. It's | |
1025 | * marked for removal. The test props->info->print should be | |
1026 | * removed along with it. | |
1027 | */ | |
ee6847d1 GH |
1028 | if (props->info->print) { |
1029 | props->info->print(dev, props, buf, sizeof(buf)); | |
1030 | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf); | |
1031 | } | |
1032 | props++; | |
1033 | } | |
1034 | } | |
1035 | ||
cae4956e GH |
1036 | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
1037 | { | |
cae4956e | 1038 | BusState *child; |
f79f2bfc | 1039 | qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)), |
ccb63de3 | 1040 | dev->id ? dev->id : ""); |
cae4956e GH |
1041 | indent += 2; |
1042 | if (dev->num_gpio_in) { | |
1043 | qdev_printf("gpio-in %d\n", dev->num_gpio_in); | |
1044 | } | |
1045 | if (dev->num_gpio_out) { | |
1046 | qdev_printf("gpio-out %d\n", dev->num_gpio_out); | |
1047 | } | |
6e008585 | 1048 | qdev_print_props(mon, dev, qdev_get_props(dev), "dev", indent); |
ee6847d1 | 1049 | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent); |
10c4c98a GH |
1050 | if (dev->parent_bus->info->print_dev) |
1051 | dev->parent_bus->info->print_dev(mon, dev, indent); | |
72cf2d4f | 1052 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
cae4956e GH |
1053 | qbus_print(mon, child, indent); |
1054 | } | |
1055 | } | |
1056 | ||
1057 | static void qbus_print(Monitor *mon, BusState *bus, int indent) | |
1058 | { | |
1059 | struct DeviceState *dev; | |
1060 | ||
1061 | qdev_printf("bus: %s\n", bus->name); | |
1062 | indent += 2; | |
10c4c98a | 1063 | qdev_printf("type %s\n", bus->info->name); |
d8bb00d6 | 1064 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
cae4956e GH |
1065 | qdev_print(mon, dev, indent); |
1066 | } | |
1067 | } | |
1068 | #undef qdev_printf | |
1069 | ||
1070 | void do_info_qtree(Monitor *mon) | |
1071 | { | |
1072 | if (main_system_bus) | |
1073 | qbus_print(mon, main_system_bus, 0); | |
1074 | } | |
9316d30f | 1075 | |
f6c64e0e | 1076 | void do_info_qdm(Monitor *mon) |
9316d30f | 1077 | { |
212ad111 | 1078 | object_class_foreach(qdev_print_devinfo, TYPE_DEVICE, false, NULL); |
9316d30f | 1079 | } |
3418bd25 | 1080 | |
8bc27249 | 1081 | int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
3418bd25 GH |
1082 | { |
1083 | QemuOpts *opts; | |
1084 | ||
3329f07b | 1085 | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict); |
8bc27249 MA |
1086 | if (!opts) { |
1087 | return -1; | |
1088 | } | |
1089 | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) { | |
1090 | qemu_opts_del(opts); | |
1091 | return 0; | |
0f853a38 | 1092 | } |
8bc27249 MA |
1093 | if (!qdev_device_add(opts)) { |
1094 | qemu_opts_del(opts); | |
1095 | return -1; | |
1096 | } | |
1097 | return 0; | |
3418bd25 GH |
1098 | } |
1099 | ||
17a38eaa | 1100 | int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
3418bd25 GH |
1101 | { |
1102 | const char *id = qdict_get_str(qdict, "id"); | |
1103 | DeviceState *dev; | |
1104 | ||
1105 | dev = qdev_find_recursive(main_system_bus, id); | |
1106 | if (NULL == dev) { | |
17a38eaa MA |
1107 | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
1108 | return -1; | |
3418bd25 | 1109 | } |
17a38eaa | 1110 | return qdev_unplug(dev); |
3418bd25 | 1111 | } |
1ca4d09a GN |
1112 | |
1113 | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) | |
1114 | { | |
1115 | int l = 0; | |
1116 | ||
1117 | if (dev && dev->parent_bus) { | |
1118 | char *d; | |
1119 | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); | |
1120 | if (dev->parent_bus->info->get_fw_dev_path) { | |
1121 | d = dev->parent_bus->info->get_fw_dev_path(dev); | |
1122 | l += snprintf(p + l, size - l, "%s", d); | |
7267c094 | 1123 | g_free(d); |
1ca4d09a | 1124 | } else { |
f79f2bfc | 1125 | l += snprintf(p + l, size - l, "%s", object_get_typename(OBJECT(dev))); |
1ca4d09a GN |
1126 | } |
1127 | } | |
1128 | l += snprintf(p + l , size - l, "/"); | |
1129 | ||
1130 | return l; | |
1131 | } | |
1132 | ||
1133 | char* qdev_get_fw_dev_path(DeviceState *dev) | |
1134 | { | |
1135 | char path[128]; | |
1136 | int l; | |
1137 | ||
1138 | l = qdev_get_fw_dev_path_helper(dev, path, 128); | |
1139 | ||
1140 | path[l-1] = '\0'; | |
1141 | ||
1142 | return strdup(path); | |
1143 | } | |
85ed303b | 1144 | |
cd34d667 AL |
1145 | char *qdev_get_type(DeviceState *dev, Error **errp) |
1146 | { | |
f79f2bfc | 1147 | return g_strdup(object_get_typename(OBJECT(dev))); |
cd34d667 AL |
1148 | } |
1149 | ||
85ed303b AL |
1150 | void qdev_ref(DeviceState *dev) |
1151 | { | |
1152 | dev->ref++; | |
1153 | } | |
1154 | ||
1155 | void qdev_unref(DeviceState *dev) | |
1156 | { | |
1157 | g_assert(dev->ref > 0); | |
1158 | dev->ref--; | |
1159 | } | |
44677ded AL |
1160 | |
1161 | void qdev_property_add(DeviceState *dev, const char *name, const char *type, | |
1162 | DevicePropertyAccessor *get, DevicePropertyAccessor *set, | |
1163 | DevicePropertyRelease *release, | |
1164 | void *opaque, Error **errp) | |
1165 | { | |
1166 | DeviceProperty *prop = g_malloc0(sizeof(*prop)); | |
1167 | ||
1168 | prop->name = g_strdup(name); | |
1169 | prop->type = g_strdup(type); | |
1170 | ||
1171 | prop->get = get; | |
1172 | prop->set = set; | |
1173 | prop->release = release; | |
1174 | prop->opaque = opaque; | |
1175 | ||
1176 | QTAILQ_INSERT_TAIL(&dev->properties, prop, node); | |
1177 | } | |
1178 | ||
1179 | static DeviceProperty *qdev_property_find(DeviceState *dev, const char *name) | |
1180 | { | |
1181 | DeviceProperty *prop; | |
1182 | ||
1183 | QTAILQ_FOREACH(prop, &dev->properties, node) { | |
1184 | if (strcmp(prop->name, name) == 0) { | |
1185 | return prop; | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | return NULL; | |
1190 | } | |
1191 | ||
1192 | void qdev_property_get(DeviceState *dev, Visitor *v, const char *name, | |
1193 | Error **errp) | |
1194 | { | |
1195 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1196 | ||
1197 | if (prop == NULL) { | |
1198 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1199 | return; | |
1200 | } | |
1201 | ||
1202 | if (!prop->get) { | |
1203 | error_set(errp, QERR_PERMISSION_DENIED); | |
1204 | } else { | |
1205 | prop->get(dev, v, prop->opaque, name, errp); | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | void qdev_property_set(DeviceState *dev, Visitor *v, const char *name, | |
1210 | Error **errp) | |
1211 | { | |
1212 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1213 | ||
1214 | if (prop == NULL) { | |
1215 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1216 | return; | |
1217 | } | |
1218 | ||
1219 | if (!prop->set) { | |
1220 | error_set(errp, QERR_PERMISSION_DENIED); | |
1221 | } else { | |
0d41d9aa | 1222 | prop->set(dev, v, prop->opaque, name, errp); |
44677ded AL |
1223 | } |
1224 | } | |
1225 | ||
1226 | const char *qdev_property_get_type(DeviceState *dev, const char *name, Error **errp) | |
1227 | { | |
1228 | DeviceProperty *prop = qdev_property_find(dev, name); | |
1229 | ||
1230 | if (prop == NULL) { | |
1231 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); | |
1232 | return NULL; | |
1233 | } | |
1234 | ||
1235 | return prop->type; | |
1236 | } | |
a5296ca9 AL |
1237 | |
1238 | /** | |
1239 | * Legacy property handling | |
1240 | */ | |
1241 | ||
1242 | static void qdev_get_legacy_property(DeviceState *dev, Visitor *v, void *opaque, | |
1243 | const char *name, Error **errp) | |
1244 | { | |
1245 | Property *prop = opaque; | |
1246 | ||
e3cb6ba6 PB |
1247 | char buffer[1024]; |
1248 | char *ptr = buffer; | |
a5296ca9 | 1249 | |
e3cb6ba6 PB |
1250 | prop->info->print(dev, prop, buffer, sizeof(buffer)); |
1251 | visit_type_str(v, &ptr, name, errp); | |
a5296ca9 AL |
1252 | } |
1253 | ||
1254 | static void qdev_set_legacy_property(DeviceState *dev, Visitor *v, void *opaque, | |
1255 | const char *name, Error **errp) | |
1256 | { | |
1257 | Property *prop = opaque; | |
e3cb6ba6 PB |
1258 | Error *local_err = NULL; |
1259 | char *ptr = NULL; | |
1260 | int ret; | |
a5296ca9 AL |
1261 | |
1262 | if (dev->state != DEV_STATE_CREATED) { | |
1263 | error_set(errp, QERR_PERMISSION_DENIED); | |
1264 | return; | |
1265 | } | |
1266 | ||
e3cb6ba6 PB |
1267 | visit_type_str(v, &ptr, name, &local_err); |
1268 | if (local_err) { | |
1269 | error_propagate(errp, local_err); | |
1270 | return; | |
1271 | } | |
a5296ca9 | 1272 | |
e3cb6ba6 | 1273 | ret = prop->info->parse(dev, prop, ptr); |
7db4c4e8 | 1274 | error_set_from_qdev_prop_error(errp, ret, dev, prop, ptr); |
e3cb6ba6 | 1275 | g_free(ptr); |
a5296ca9 AL |
1276 | } |
1277 | ||
1278 | /** | |
1279 | * @qdev_add_legacy_property - adds a legacy property | |
1280 | * | |
1281 | * Do not use this is new code! Properties added through this interface will | |
ca2cc788 | 1282 | * be given names and types in the "legacy" namespace. |
a5296ca9 AL |
1283 | * |
1284 | * Legacy properties are always processed as strings. The format of the string | |
1285 | * depends on the property type. | |
1286 | */ | |
1287 | void qdev_property_add_legacy(DeviceState *dev, Property *prop, | |
1288 | Error **errp) | |
1289 | { | |
ca2cc788 | 1290 | gchar *name, *type; |
a5296ca9 | 1291 | |
ca2cc788 | 1292 | name = g_strdup_printf("legacy-%s", prop->name); |
cafe5bdb PB |
1293 | type = g_strdup_printf("legacy<%s>", |
1294 | prop->info->legacy_name ?: prop->info->name); | |
a5296ca9 | 1295 | |
ca2cc788 | 1296 | qdev_property_add(dev, name, type, |
e3cb6ba6 PB |
1297 | prop->info->print ? qdev_get_legacy_property : NULL, |
1298 | prop->info->parse ? qdev_set_legacy_property : NULL, | |
a5296ca9 AL |
1299 | NULL, |
1300 | prop, errp); | |
1301 | ||
1302 | g_free(type); | |
ca2cc788 PB |
1303 | g_free(name); |
1304 | } | |
1305 | ||
1306 | /** | |
1307 | * @qdev_property_add_static - add a @Property to a device. | |
1308 | * | |
1309 | * Static properties access data in a struct. The actual type of the | |
1310 | * property and the field depends on the property type. | |
1311 | */ | |
1312 | void qdev_property_add_static(DeviceState *dev, Property *prop, | |
1313 | Error **errp) | |
1314 | { | |
1315 | qdev_property_add(dev, prop->name, prop->info->name, | |
1316 | prop->info->get, prop->info->set, | |
1317 | NULL, | |
1318 | prop, errp); | |
a5296ca9 | 1319 | } |
a10f07a7 AL |
1320 | |
1321 | DeviceState *qdev_get_root(void) | |
1322 | { | |
1323 | static DeviceState *qdev_root; | |
1324 | ||
1325 | if (!qdev_root) { | |
1326 | qdev_root = qdev_create(NULL, "container"); | |
1327 | qdev_init_nofail(qdev_root); | |
1328 | } | |
1329 | ||
1330 | return qdev_root; | |
1331 | } | |
f9fbd2fd | 1332 | |
3de1c3e8 AL |
1333 | static void qdev_get_child_property(DeviceState *dev, Visitor *v, void *opaque, |
1334 | const char *name, Error **errp) | |
1335 | { | |
1336 | DeviceState *child = opaque; | |
1337 | gchar *path; | |
1338 | ||
1339 | path = qdev_get_canonical_path(child); | |
1340 | visit_type_str(v, &path, name, errp); | |
1341 | g_free(path); | |
1342 | } | |
1343 | ||
024a6fbd AL |
1344 | static void qdev_release_child_property(DeviceState *dev, const char *name, |
1345 | void *opaque) | |
1346 | { | |
1347 | DeviceState *child = opaque; | |
1348 | ||
1349 | qdev_unref(child); | |
1350 | } | |
1351 | ||
3de1c3e8 AL |
1352 | void qdev_property_add_child(DeviceState *dev, const char *name, |
1353 | DeviceState *child, Error **errp) | |
1354 | { | |
1355 | gchar *type; | |
1356 | ||
f79f2bfc | 1357 | type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); |
3de1c3e8 AL |
1358 | |
1359 | qdev_property_add(dev, name, type, qdev_get_child_property, | |
024a6fbd AL |
1360 | NULL, qdev_release_child_property, |
1361 | child, errp); | |
3de1c3e8 AL |
1362 | |
1363 | qdev_ref(child); | |
b2b6c39a AL |
1364 | g_assert(child->parent == NULL); |
1365 | child->parent = dev; | |
3de1c3e8 AL |
1366 | |
1367 | g_free(type); | |
1368 | } | |
1369 | ||
83e94fb8 AL |
1370 | static void qdev_get_link_property(DeviceState *dev, Visitor *v, void *opaque, |
1371 | const char *name, Error **errp) | |
1372 | { | |
1373 | DeviceState **child = opaque; | |
1374 | gchar *path; | |
1375 | ||
1376 | if (*child) { | |
1377 | path = qdev_get_canonical_path(*child); | |
1378 | visit_type_str(v, &path, name, errp); | |
1379 | g_free(path); | |
1380 | } else { | |
1381 | path = (gchar *)""; | |
1382 | visit_type_str(v, &path, name, errp); | |
1383 | } | |
1384 | } | |
1385 | ||
1386 | static void qdev_set_link_property(DeviceState *dev, Visitor *v, void *opaque, | |
1387 | const char *name, Error **errp) | |
1388 | { | |
1389 | DeviceState **child = opaque; | |
1390 | bool ambiguous = false; | |
1391 | const char *type; | |
1392 | char *path; | |
1393 | ||
1394 | type = qdev_property_get_type(dev, name, NULL); | |
1395 | ||
1396 | visit_type_str(v, &path, name, errp); | |
1397 | ||
1398 | if (*child) { | |
1399 | qdev_unref(*child); | |
1400 | } | |
1401 | ||
1402 | if (strcmp(path, "") != 0) { | |
1403 | DeviceState *target; | |
1404 | ||
1405 | target = qdev_resolve_path(path, &ambiguous); | |
1406 | if (target) { | |
1407 | gchar *target_type; | |
1408 | ||
f79f2bfc | 1409 | target_type = g_strdup_printf("link<%s>", object_get_typename(OBJECT(target))); |
83e94fb8 AL |
1410 | if (strcmp(target_type, type) == 0) { |
1411 | *child = target; | |
1412 | qdev_ref(target); | |
1413 | } else { | |
1414 | error_set(errp, QERR_INVALID_PARAMETER_TYPE, name, type); | |
1415 | } | |
1416 | ||
1417 | g_free(target_type); | |
1418 | } else { | |
1419 | error_set(errp, QERR_DEVICE_NOT_FOUND, path); | |
1420 | } | |
1421 | } else { | |
1422 | *child = NULL; | |
1423 | } | |
1424 | ||
1425 | g_free(path); | |
1426 | } | |
1427 | ||
1428 | void qdev_property_add_link(DeviceState *dev, const char *name, | |
1429 | const char *type, DeviceState **child, | |
1430 | Error **errp) | |
1431 | { | |
1432 | gchar *full_type; | |
1433 | ||
1434 | full_type = g_strdup_printf("link<%s>", type); | |
1435 | ||
1436 | qdev_property_add(dev, name, full_type, | |
1437 | qdev_get_link_property, | |
1438 | qdev_set_link_property, | |
1439 | NULL, child, errp); | |
1440 | ||
1441 | g_free(full_type); | |
1442 | } | |
1443 | ||
b2b6c39a | 1444 | gchar *qdev_get_canonical_path(DeviceState *dev) |
f9fbd2fd | 1445 | { |
b2b6c39a AL |
1446 | DeviceState *root = qdev_get_root(); |
1447 | char *newpath = NULL, *path = NULL; | |
f9fbd2fd | 1448 | |
b2b6c39a AL |
1449 | while (dev != root) { |
1450 | DeviceProperty *prop = NULL; | |
f9fbd2fd | 1451 | |
b2b6c39a | 1452 | g_assert(dev->parent != NULL); |
f9fbd2fd | 1453 | |
b2b6c39a AL |
1454 | QTAILQ_FOREACH(prop, &dev->parent->properties, node) { |
1455 | if (!strstart(prop->type, "child<", NULL)) { | |
1456 | continue; | |
1457 | } | |
f9fbd2fd | 1458 | |
b2b6c39a AL |
1459 | if (prop->opaque == dev) { |
1460 | if (path) { | |
1461 | newpath = g_strdup_printf("%s/%s", prop->name, path); | |
1462 | g_free(path); | |
1463 | path = newpath; | |
1464 | } else { | |
1465 | path = g_strdup(prop->name); | |
1466 | } | |
1467 | break; | |
1468 | } | |
f9fbd2fd AL |
1469 | } |
1470 | ||
b2b6c39a | 1471 | g_assert(prop != NULL); |
f9fbd2fd | 1472 | |
b2b6c39a | 1473 | dev = dev->parent; |
f9fbd2fd AL |
1474 | } |
1475 | ||
f9fbd2fd AL |
1476 | newpath = g_strdup_printf("/%s", path); |
1477 | g_free(path); | |
1478 | ||
1479 | return newpath; | |
1480 | } | |
dc45c21f AL |
1481 | |
1482 | static DeviceState *qdev_resolve_abs_path(DeviceState *parent, | |
1483 | gchar **parts, | |
1484 | int index) | |
1485 | { | |
1486 | DeviceProperty *prop; | |
1487 | DeviceState *child; | |
1488 | ||
1489 | if (parts[index] == NULL) { | |
1490 | return parent; | |
1491 | } | |
1492 | ||
1493 | if (strcmp(parts[index], "") == 0) { | |
1494 | return qdev_resolve_abs_path(parent, parts, index + 1); | |
1495 | } | |
1496 | ||
1497 | prop = qdev_property_find(parent, parts[index]); | |
1498 | if (prop == NULL) { | |
1499 | return NULL; | |
1500 | } | |
1501 | ||
1502 | child = NULL; | |
1503 | if (strstart(prop->type, "link<", NULL)) { | |
1504 | DeviceState **pchild = prop->opaque; | |
1505 | if (*pchild) { | |
1506 | child = *pchild; | |
1507 | } | |
1508 | } else if (strstart(prop->type, "child<", NULL)) { | |
1509 | child = prop->opaque; | |
1510 | } | |
1511 | ||
1512 | if (!child) { | |
1513 | return NULL; | |
1514 | } | |
1515 | ||
1516 | return qdev_resolve_abs_path(child, parts, index + 1); | |
1517 | } | |
1518 | ||
1519 | static DeviceState *qdev_resolve_partial_path(DeviceState *parent, | |
1520 | gchar **parts, | |
1521 | bool *ambiguous) | |
1522 | { | |
1523 | DeviceState *dev; | |
1524 | DeviceProperty *prop; | |
1525 | ||
1526 | dev = qdev_resolve_abs_path(parent, parts, 0); | |
1527 | ||
1528 | QTAILQ_FOREACH(prop, &parent->properties, node) { | |
1529 | DeviceState *found; | |
1530 | ||
1531 | if (!strstart(prop->type, "child<", NULL)) { | |
1532 | continue; | |
1533 | } | |
1534 | ||
1535 | found = qdev_resolve_partial_path(prop->opaque, parts, ambiguous); | |
1536 | if (found) { | |
1537 | if (dev) { | |
1538 | if (ambiguous) { | |
1539 | *ambiguous = true; | |
1540 | } | |
1541 | return NULL; | |
1542 | } | |
1543 | dev = found; | |
1544 | } | |
1545 | ||
1546 | if (ambiguous && *ambiguous) { | |
1547 | return NULL; | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | return dev; | |
1552 | } | |
1553 | ||
1554 | DeviceState *qdev_resolve_path(const char *path, bool *ambiguous) | |
1555 | { | |
1556 | bool partial_path = true; | |
1557 | DeviceState *dev; | |
1558 | gchar **parts; | |
1559 | ||
1560 | parts = g_strsplit(path, "/", 0); | |
1561 | if (parts == NULL || parts[0] == NULL) { | |
1562 | g_strfreev(parts); | |
1563 | return qdev_get_root(); | |
1564 | } | |
1565 | ||
1566 | if (strcmp(parts[0], "") == 0) { | |
1567 | partial_path = false; | |
1568 | } | |
1569 | ||
1570 | if (partial_path) { | |
1571 | if (ambiguous) { | |
1572 | *ambiguous = false; | |
1573 | } | |
1574 | dev = qdev_resolve_partial_path(qdev_get_root(), parts, ambiguous); | |
1575 | } else { | |
1576 | dev = qdev_resolve_abs_path(qdev_get_root(), parts, 1); | |
1577 | } | |
1578 | ||
1579 | g_strfreev(parts); | |
1580 | ||
1581 | return dev; | |
1582 | } | |
1583 | ||
6a146eba AL |
1584 | typedef struct StringProperty |
1585 | { | |
1586 | char *(*get)(DeviceState *, Error **); | |
1587 | void (*set)(DeviceState *, const char *, Error **); | |
1588 | } StringProperty; | |
1589 | ||
1590 | static void qdev_property_get_str(DeviceState *dev, Visitor *v, void *opaque, | |
1591 | const char *name, Error **errp) | |
1592 | { | |
1593 | StringProperty *prop = opaque; | |
1594 | char *value; | |
1595 | ||
1596 | value = prop->get(dev, errp); | |
1597 | if (value) { | |
1598 | visit_type_str(v, &value, name, errp); | |
1599 | g_free(value); | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | static void qdev_property_set_str(DeviceState *dev, Visitor *v, void *opaque, | |
1604 | const char *name, Error **errp) | |
1605 | { | |
1606 | StringProperty *prop = opaque; | |
1607 | char *value; | |
1608 | Error *local_err = NULL; | |
1609 | ||
1610 | visit_type_str(v, &value, name, &local_err); | |
1611 | if (local_err) { | |
1612 | error_propagate(errp, local_err); | |
1613 | return; | |
1614 | } | |
1615 | ||
1616 | prop->set(dev, value, errp); | |
1617 | g_free(value); | |
1618 | } | |
1619 | ||
1620 | static void qdev_property_release_str(DeviceState *dev, const char *name, | |
1621 | void *opaque) | |
1622 | { | |
1623 | StringProperty *prop = opaque; | |
1624 | g_free(prop); | |
1625 | } | |
1626 | ||
1627 | void qdev_property_add_str(DeviceState *dev, const char *name, | |
1628 | char *(*get)(DeviceState *, Error **), | |
1629 | void (*set)(DeviceState *, const char *, Error **), | |
1630 | Error **errp) | |
1631 | { | |
1632 | StringProperty *prop = g_malloc0(sizeof(*prop)); | |
1633 | ||
1634 | prop->get = get; | |
1635 | prop->set = set; | |
1636 | ||
1637 | qdev_property_add(dev, name, "string", | |
1638 | get ? qdev_property_get_str : NULL, | |
1639 | set ? qdev_property_set_str : NULL, | |
1640 | qdev_property_release_str, | |
1641 | prop, errp); | |
1642 | } | |
1de81d28 AL |
1643 | |
1644 | void qdev_machine_init(void) | |
1645 | { | |
1646 | qdev_get_peripheral_anon(); | |
1647 | qdev_get_peripheral(); | |
1648 | } | |
32fea402 | 1649 | |
94afdadc AL |
1650 | void device_reset(DeviceState *dev) |
1651 | { | |
1652 | DeviceClass *klass = DEVICE_GET_CLASS(dev); | |
1653 | ||
1654 | if (klass->reset) { | |
1655 | klass->reset(dev); | |
1656 | } | |
1657 | } | |
1658 | ||
32fea402 AL |
1659 | static TypeInfo device_type_info = { |
1660 | .name = TYPE_DEVICE, | |
1661 | .parent = TYPE_OBJECT, | |
1662 | .instance_size = sizeof(DeviceState), | |
1663 | .abstract = true, | |
1664 | .class_size = sizeof(DeviceClass), | |
1665 | }; | |
1666 | ||
1667 | static void init_qdev(void) | |
1668 | { | |
1669 | type_register_static(&device_type_info); | |
1670 | } | |
1671 | ||
1672 | device_init(init_qdev); |