]>
Commit | Line | Data |
---|---|---|
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 | ||
83c9f4ca | 28 | #include "hw/qdev.h" |
6b1566cb | 29 | #include "hw/fw-path-provider.h" |
9c17d615 | 30 | #include "sysemu/sysemu.h" |
7b1b5d19 | 31 | #include "qapi/error.h" |
b4a42f81 | 32 | #include "qapi/qmp/qerror.h" |
7b1b5d19 | 33 | #include "qapi/visitor.h" |
0402a5d6 | 34 | #include "qapi/qmp/qjson.h" |
0ee4de6c | 35 | #include "hw/hotplug.h" |
b7454548 | 36 | #include "hw/boards.h" |
24b699fb | 37 | #include "qapi-event.h" |
aae9460e | 38 | |
ee46d8a5 | 39 | int qdev_hotplug = 0; |
0ac8ef71 AW |
40 | static bool qdev_hot_added = false; |
41 | static bool qdev_hot_removed = false; | |
3418bd25 | 42 | |
4be9f0d1 AL |
43 | const VMStateDescription *qdev_get_vmsd(DeviceState *dev) |
44 | { | |
6e008585 AL |
45 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
46 | return dc->vmsd; | |
4be9f0d1 AL |
47 | } |
48 | ||
4be9f0d1 AL |
49 | const char *qdev_fw_name(DeviceState *dev) |
50 | { | |
6e008585 | 51 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
4be9f0d1 | 52 | |
6e008585 AL |
53 | if (dc->fw_name) { |
54 | return dc->fw_name; | |
4be9f0d1 AL |
55 | } |
56 | ||
57 | return object_get_typename(OBJECT(dev)); | |
58 | } | |
59 | ||
ca2cc788 PB |
60 | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
61 | Error **errp); | |
62 | ||
0866aca1 | 63 | static void bus_remove_child(BusState *bus, DeviceState *child) |
0c17542d | 64 | { |
0866aca1 AL |
65 | BusChild *kid; |
66 | ||
67 | QTAILQ_FOREACH(kid, &bus->children, sibling) { | |
68 | if (kid->child == child) { | |
69 | char name[32]; | |
70 | ||
71 | snprintf(name, sizeof(name), "child[%d]", kid->index); | |
72 | QTAILQ_REMOVE(&bus->children, kid, sibling); | |
9d127820 PB |
73 | |
74 | /* This gives back ownership of kid->child back to us. */ | |
0866aca1 | 75 | object_property_del(OBJECT(bus), name, NULL); |
9d127820 | 76 | object_unref(OBJECT(kid->child)); |
0866aca1 AL |
77 | g_free(kid); |
78 | return; | |
79 | } | |
80 | } | |
81 | } | |
82 | ||
83 | static void bus_add_child(BusState *bus, DeviceState *child) | |
84 | { | |
85 | char name[32]; | |
86 | BusChild *kid = g_malloc0(sizeof(*kid)); | |
0c17542d | 87 | |
0c17542d MA |
88 | if (qdev_hotplug) { |
89 | assert(bus->allow_hotplug); | |
0c17542d | 90 | } |
a5296ca9 | 91 | |
0866aca1 AL |
92 | kid->index = bus->max_index++; |
93 | kid->child = child; | |
9d127820 | 94 | object_ref(OBJECT(kid->child)); |
a5296ca9 | 95 | |
0866aca1 AL |
96 | QTAILQ_INSERT_HEAD(&bus->children, kid, sibling); |
97 | ||
9d127820 | 98 | /* This transfers ownership of kid->child to the property. */ |
0866aca1 AL |
99 | snprintf(name, sizeof(name), "child[%d]", kid->index); |
100 | object_property_add_link(OBJECT(bus), name, | |
101 | object_get_typename(OBJECT(child)), | |
39f72ef9 SH |
102 | (Object **)&kid->child, |
103 | NULL, /* read-only property */ | |
104 | 0, /* return ownership on prop deletion */ | |
105 | NULL); | |
0866aca1 AL |
106 | } |
107 | ||
108 | void qdev_set_parent_bus(DeviceState *dev, BusState *bus) | |
109 | { | |
9fbe6127 | 110 | dev->parent_bus = bus; |
62d7ba66 | 111 | object_ref(OBJECT(bus)); |
0866aca1 | 112 | bus_add_child(bus, dev); |
0c17542d MA |
113 | } |
114 | ||
aae9460e PB |
115 | /* Create a new device. This only initializes the device state structure |
116 | and allows properties to be set. qdev_init should be called to | |
117 | initialize the actual device emulation. */ | |
02e2da45 | 118 | DeviceState *qdev_create(BusState *bus, const char *name) |
0bcdeda7 BS |
119 | { |
120 | DeviceState *dev; | |
121 | ||
122 | dev = qdev_try_create(bus, name); | |
123 | if (!dev) { | |
e92714c7 | 124 | if (bus) { |
312fd5f2 | 125 | error_report("Unknown device '%s' for bus '%s'", name, |
23e3fbec | 126 | object_get_typename(OBJECT(bus))); |
e92714c7 | 127 | } else { |
312fd5f2 | 128 | error_report("Unknown device '%s' for default sysbus", name); |
e92714c7 | 129 | } |
01ed1d52 | 130 | abort(); |
0bcdeda7 BS |
131 | } |
132 | ||
133 | return dev; | |
134 | } | |
135 | ||
da57febf | 136 | DeviceState *qdev_try_create(BusState *bus, const char *type) |
aae9460e | 137 | { |
9fbe6127 AL |
138 | DeviceState *dev; |
139 | ||
da57febf | 140 | if (object_class_by_name(type) == NULL) { |
4ed658ca AF |
141 | return NULL; |
142 | } | |
da57febf | 143 | dev = DEVICE(object_new(type)); |
9fbe6127 AL |
144 | if (!dev) { |
145 | return NULL; | |
146 | } | |
147 | ||
10c4c98a | 148 | if (!bus) { |
68694897 | 149 | bus = sysbus_get_default(); |
10c4c98a GH |
150 | } |
151 | ||
9fbe6127 | 152 | qdev_set_parent_bus(dev, bus); |
b09995ae | 153 | object_unref(OBJECT(dev)); |
9fbe6127 | 154 | return dev; |
aae9460e PB |
155 | } |
156 | ||
157 | /* Initialize a device. Device properties should be set before calling | |
158 | this function. IRQs and MMIO regions should be connected/mapped after | |
18cfeb52 MA |
159 | calling this function. |
160 | On failure, destroy the device and return negative value. | |
161 | Return 0 on success. */ | |
81a322d4 | 162 | int qdev_init(DeviceState *dev) |
aae9460e | 163 | { |
249d4172 | 164 | Error *local_err = NULL; |
959f733a | 165 | |
7983c8a3 | 166 | assert(!dev->realized); |
6e008585 | 167 | |
249d4172 AF |
168 | object_property_set_bool(OBJECT(dev), true, "realized", &local_err); |
169 | if (local_err != NULL) { | |
cffc5113 | 170 | qerror_report_err(local_err); |
249d4172 | 171 | error_free(local_err); |
02a5c4c9 | 172 | object_unparent(OBJECT(dev)); |
249d4172 | 173 | return -1; |
18cfeb52 | 174 | } |
249d4172 AF |
175 | return 0; |
176 | } | |
da57febf | 177 | |
a7737e44 | 178 | static void device_realize(DeviceState *dev, Error **errp) |
249d4172 AF |
179 | { |
180 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
da57febf | 181 | |
249d4172 AF |
182 | if (dc->init) { |
183 | int rc = dc->init(dev); | |
184 | if (rc < 0) { | |
a7737e44 | 185 | error_setg(errp, "Device initialization failed."); |
249d4172 AF |
186 | return; |
187 | } | |
5ab28c83 | 188 | } |
02e2da45 PB |
189 | } |
190 | ||
fe6c2117 AF |
191 | static void device_unrealize(DeviceState *dev, Error **errp) |
192 | { | |
193 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
194 | ||
195 | if (dc->exit) { | |
196 | int rc = dc->exit(dev); | |
197 | if (rc < 0) { | |
198 | error_setg(errp, "Device exit failed."); | |
199 | return; | |
200 | } | |
201 | } | |
202 | } | |
203 | ||
4d2ffa08 JK |
204 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
205 | int required_for_version) | |
206 | { | |
7983c8a3 | 207 | assert(!dev->realized); |
4d2ffa08 JK |
208 | dev->instance_id_alias = alias_id; |
209 | dev->alias_required_for_version = required_for_version; | |
210 | } | |
211 | ||
56f9107e | 212 | void qdev_unplug(DeviceState *dev, Error **errp) |
3418bd25 | 213 | { |
6e008585 AL |
214 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
215 | ||
120dc38f | 216 | if (dev->parent_bus && !dev->parent_bus->allow_hotplug) { |
56f9107e LC |
217 | error_set(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
218 | return; | |
3418bd25 | 219 | } |
593831de | 220 | |
1a37eca1 IM |
221 | if (!dc->hotpluggable) { |
222 | error_set(errp, QERR_DEVICE_NO_HOTPLUG, | |
223 | object_get_typename(OBJECT(dev))); | |
224 | return; | |
225 | } | |
226 | ||
0ac8ef71 AW |
227 | qdev_hot_removed = true; |
228 | ||
5e954943 IM |
229 | if (dev->parent_bus && dev->parent_bus->hotplug_handler) { |
230 | hotplug_handler_unplug(dev->parent_bus->hotplug_handler, dev, errp); | |
231 | } else { | |
232 | assert(dc->unplug != NULL); | |
233 | if (dc->unplug(dev) < 0) { /* legacy handler */ | |
234 | error_set(errp, QERR_UNDEFINED_ERROR); | |
235 | } | |
56f9107e | 236 | } |
3418bd25 GH |
237 | } |
238 | ||
ec990eb6 AL |
239 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
240 | { | |
94afdadc | 241 | device_reset(dev); |
ec990eb6 AL |
242 | |
243 | return 0; | |
244 | } | |
245 | ||
b4694b7c IY |
246 | static int qbus_reset_one(BusState *bus, void *opaque) |
247 | { | |
0d936928 AL |
248 | BusClass *bc = BUS_GET_CLASS(bus); |
249 | if (bc->reset) { | |
dcc20931 | 250 | bc->reset(bus); |
b4694b7c IY |
251 | } |
252 | return 0; | |
253 | } | |
254 | ||
5af0a04b IY |
255 | void qdev_reset_all(DeviceState *dev) |
256 | { | |
dcc20931 | 257 | qdev_walk_children(dev, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL); |
5af0a04b IY |
258 | } |
259 | ||
d0508c36 PB |
260 | void qbus_reset_all(BusState *bus) |
261 | { | |
dcc20931 | 262 | qbus_walk_children(bus, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL); |
d0508c36 PB |
263 | } |
264 | ||
80376c3f IY |
265 | void qbus_reset_all_fn(void *opaque) |
266 | { | |
267 | BusState *bus = opaque; | |
d0508c36 | 268 | qbus_reset_all(bus); |
80376c3f IY |
269 | } |
270 | ||
3418bd25 GH |
271 | /* can be used as ->unplug() callback for the simple cases */ |
272 | int qdev_simple_unplug_cb(DeviceState *dev) | |
273 | { | |
274 | /* just zap it */ | |
02a5c4c9 | 275 | object_unparent(OBJECT(dev)); |
3418bd25 GH |
276 | return 0; |
277 | } | |
278 | ||
3b29a101 MT |
279 | |
280 | /* Like qdev_init(), but terminate program via error_report() instead of | |
e23a1b33 MA |
281 | returning an error value. This is okay during machine creation. |
282 | Don't use for hotplug, because there callers need to recover from | |
283 | failure. Exception: if you know the device's init() callback can't | |
284 | fail, then qdev_init_nofail() can't fail either, and is therefore | |
285 | usable even then. But relying on the device implementation that | |
286 | way is somewhat unclean, and best avoided. */ | |
287 | void qdev_init_nofail(DeviceState *dev) | |
288 | { | |
7de3abe5 AL |
289 | const char *typename = object_get_typename(OBJECT(dev)); |
290 | ||
bd6c9a61 | 291 | if (qdev_init(dev) < 0) { |
7de3abe5 | 292 | error_report("Initialization of device %s failed", typename); |
bd6c9a61 MA |
293 | exit(1); |
294 | } | |
e23a1b33 MA |
295 | } |
296 | ||
3418bd25 GH |
297 | void qdev_machine_creation_done(void) |
298 | { | |
299 | /* | |
300 | * ok, initial machine setup is done, starting from now we can | |
301 | * only create hotpluggable devices | |
302 | */ | |
303 | qdev_hotplug = 1; | |
304 | } | |
305 | ||
0ac8ef71 AW |
306 | bool qdev_machine_modified(void) |
307 | { | |
308 | return qdev_hot_added || qdev_hot_removed; | |
309 | } | |
310 | ||
02e2da45 | 311 | BusState *qdev_get_parent_bus(DeviceState *dev) |
aae9460e | 312 | { |
02e2da45 | 313 | return dev->parent_bus; |
aae9460e PB |
314 | } |
315 | ||
a5f54290 PC |
316 | static NamedGPIOList *qdev_get_named_gpio_list(DeviceState *dev, |
317 | const char *name) | |
318 | { | |
319 | NamedGPIOList *ngl; | |
320 | ||
321 | QLIST_FOREACH(ngl, &dev->gpios, node) { | |
322 | /* NULL is a valid and matchable name, otherwise do a normal | |
323 | * strcmp match. | |
324 | */ | |
325 | if ((!ngl->name && !name) || | |
326 | (name && ngl->name && strcmp(name, ngl->name) == 0)) { | |
327 | return ngl; | |
328 | } | |
329 | } | |
330 | ||
331 | ngl = g_malloc0(sizeof(*ngl)); | |
332 | ngl->name = g_strdup(name); | |
333 | QLIST_INSERT_HEAD(&dev->gpios, ngl, node); | |
334 | return ngl; | |
335 | } | |
336 | ||
337 | void qdev_init_gpio_in_named(DeviceState *dev, qemu_irq_handler handler, | |
338 | const char *name, int n) | |
339 | { | |
340 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); | |
341 | ||
342 | gpio_list->in = qemu_extend_irqs(gpio_list->in, gpio_list->num_in, handler, | |
343 | dev, n); | |
344 | gpio_list->num_in += n; | |
345 | } | |
346 | ||
aae9460e PB |
347 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
348 | { | |
a5f54290 PC |
349 | qdev_init_gpio_in_named(dev, handler, NULL, n); |
350 | } | |
351 | ||
352 | void qdev_init_gpio_out_named(DeviceState *dev, qemu_irq *pins, | |
353 | const char *name, int n) | |
354 | { | |
355 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); | |
356 | ||
357 | assert(gpio_list->num_out == 0); | |
358 | gpio_list->num_out = n; | |
359 | gpio_list->out = pins; | |
aae9460e PB |
360 | } |
361 | ||
362 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) | |
363 | { | |
a5f54290 PC |
364 | qdev_init_gpio_out_named(dev, pins, NULL, n); |
365 | } | |
366 | ||
367 | qemu_irq qdev_get_gpio_in_named(DeviceState *dev, const char *name, int n) | |
368 | { | |
369 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); | |
370 | ||
371 | assert(n >= 0 && n < gpio_list->num_in); | |
372 | return gpio_list->in[n]; | |
aae9460e PB |
373 | } |
374 | ||
375 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) | |
376 | { | |
a5f54290 PC |
377 | return qdev_get_gpio_in_named(dev, NULL, n); |
378 | } | |
379 | ||
380 | void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n, | |
381 | qemu_irq pin) | |
382 | { | |
383 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); | |
384 | ||
385 | assert(n >= 0 && n < gpio_list->num_out); | |
386 | gpio_list->out[n] = pin; | |
aae9460e PB |
387 | } |
388 | ||
389 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) | |
390 | { | |
a5f54290 | 391 | qdev_connect_gpio_out_named(dev, NULL, n, pin); |
aae9460e PB |
392 | } |
393 | ||
02e2da45 | 394 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
4d6ae674 | 395 | { |
02e2da45 | 396 | BusState *bus; |
4d6ae674 | 397 | |
72cf2d4f | 398 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
4d6ae674 | 399 | if (strcmp(name, bus->name) == 0) { |
02e2da45 | 400 | return bus; |
4d6ae674 PB |
401 | } |
402 | } | |
403 | return NULL; | |
404 | } | |
405 | ||
0293214b PB |
406 | int qbus_walk_children(BusState *bus, |
407 | qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn, | |
408 | qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn, | |
409 | void *opaque) | |
81699d8a | 410 | { |
0866aca1 | 411 | BusChild *kid; |
81699d8a AL |
412 | int err; |
413 | ||
0293214b PB |
414 | if (pre_busfn) { |
415 | err = pre_busfn(bus, opaque); | |
81699d8a AL |
416 | if (err) { |
417 | return err; | |
418 | } | |
419 | } | |
420 | ||
0866aca1 | 421 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
0293214b PB |
422 | err = qdev_walk_children(kid->child, |
423 | pre_devfn, pre_busfn, | |
424 | post_devfn, post_busfn, opaque); | |
81699d8a AL |
425 | if (err < 0) { |
426 | return err; | |
427 | } | |
428 | } | |
429 | ||
0293214b PB |
430 | if (post_busfn) { |
431 | err = post_busfn(bus, opaque); | |
432 | if (err) { | |
433 | return err; | |
434 | } | |
435 | } | |
436 | ||
81699d8a AL |
437 | return 0; |
438 | } | |
439 | ||
0293214b PB |
440 | int qdev_walk_children(DeviceState *dev, |
441 | qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn, | |
442 | qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn, | |
443 | void *opaque) | |
81699d8a AL |
444 | { |
445 | BusState *bus; | |
446 | int err; | |
447 | ||
0293214b PB |
448 | if (pre_devfn) { |
449 | err = pre_devfn(dev, opaque); | |
81699d8a AL |
450 | if (err) { |
451 | return err; | |
452 | } | |
453 | } | |
454 | ||
455 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
0293214b PB |
456 | err = qbus_walk_children(bus, pre_devfn, pre_busfn, |
457 | post_devfn, post_busfn, opaque); | |
81699d8a AL |
458 | if (err < 0) { |
459 | return err; | |
460 | } | |
461 | } | |
462 | ||
0293214b PB |
463 | if (post_devfn) { |
464 | err = post_devfn(dev, opaque); | |
465 | if (err) { | |
466 | return err; | |
467 | } | |
468 | } | |
469 | ||
81699d8a AL |
470 | return 0; |
471 | } | |
472 | ||
a2ee6b4f | 473 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
3418bd25 | 474 | { |
0866aca1 AL |
475 | BusChild *kid; |
476 | DeviceState *ret; | |
3418bd25 GH |
477 | BusState *child; |
478 | ||
0866aca1 AL |
479 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
480 | DeviceState *dev = kid->child; | |
481 | ||
482 | if (dev->id && strcmp(dev->id, id) == 0) { | |
3418bd25 | 483 | return dev; |
0866aca1 AL |
484 | } |
485 | ||
3418bd25 GH |
486 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
487 | ret = qdev_find_recursive(child, id); | |
488 | if (ret) { | |
489 | return ret; | |
490 | } | |
491 | } | |
492 | } | |
493 | return NULL; | |
494 | } | |
495 | ||
013e1182 | 496 | static void qbus_realize(BusState *bus, DeviceState *parent, const char *name) |
02e2da45 | 497 | { |
ac7d1ba6 | 498 | const char *typename = object_get_typename(OBJECT(bus)); |
61de3676 | 499 | BusClass *bc; |
d271de9f | 500 | char *buf; |
61de3676 | 501 | int i, len, bus_id; |
02e2da45 | 502 | |
013e1182 PB |
503 | bus->parent = parent; |
504 | ||
505 | if (name) { | |
506 | bus->name = g_strdup(name); | |
ac7d1ba6 | 507 | } else if (bus->parent && bus->parent->id) { |
61de3676 AG |
508 | /* parent device has id -> use it plus parent-bus-id for bus name */ |
509 | bus_id = bus->parent->num_child_bus; | |
510 | ||
ac7d1ba6 | 511 | len = strlen(bus->parent->id) + 16; |
7267c094 | 512 | buf = g_malloc(len); |
61de3676 | 513 | snprintf(buf, len, "%s.%d", bus->parent->id, bus_id); |
d271de9f GH |
514 | bus->name = buf; |
515 | } else { | |
61de3676 AG |
516 | /* no id -> use lowercase bus type plus global bus-id for bus name */ |
517 | bc = BUS_GET_CLASS(bus); | |
518 | bus_id = bc->automatic_ids++; | |
519 | ||
0d936928 | 520 | len = strlen(typename) + 16; |
7267c094 | 521 | buf = g_malloc(len); |
61de3676 AG |
522 | len = snprintf(buf, len, "%s.%d", typename, bus_id); |
523 | for (i = 0; i < len; i++) { | |
bb87ece5 | 524 | buf[i] = qemu_tolower(buf[i]); |
61de3676 | 525 | } |
d271de9f GH |
526 | bus->name = buf; |
527 | } | |
528 | ||
ac7d1ba6 AL |
529 | if (bus->parent) { |
530 | QLIST_INSERT_HEAD(&bus->parent->child_bus, bus, sibling); | |
531 | bus->parent->num_child_bus++; | |
532 | object_property_add_child(OBJECT(bus->parent), bus->name, OBJECT(bus), NULL); | |
b09995ae | 533 | object_unref(OBJECT(bus)); |
8185d216 | 534 | } else if (bus != sysbus_get_default()) { |
80376c3f IY |
535 | /* TODO: once all bus devices are qdevified, |
536 | only reset handler for main_system_bus should be registered here. */ | |
537 | qemu_register_reset(qbus_reset_all_fn, bus); | |
02e2da45 | 538 | } |
cd739fb6 GH |
539 | } |
540 | ||
6853d27a PB |
541 | static void bus_unparent(Object *obj) |
542 | { | |
543 | BusState *bus = BUS(obj); | |
544 | BusChild *kid; | |
545 | ||
546 | while ((kid = QTAILQ_FIRST(&bus->children)) != NULL) { | |
547 | DeviceState *dev = kid->child; | |
02a5c4c9 | 548 | object_unparent(OBJECT(dev)); |
6853d27a PB |
549 | } |
550 | if (bus->parent) { | |
551 | QLIST_REMOVE(bus, sibling); | |
552 | bus->parent->num_child_bus--; | |
553 | bus->parent = NULL; | |
554 | } else { | |
555 | assert(bus != sysbus_get_default()); /* main_system_bus is never freed */ | |
556 | qemu_unregister_reset(qbus_reset_all_fn, bus); | |
557 | } | |
558 | } | |
559 | ||
a7737e44 | 560 | static bool bus_get_realized(Object *obj, Error **errp) |
02e7f85d BD |
561 | { |
562 | BusState *bus = BUS(obj); | |
563 | ||
564 | return bus->realized; | |
565 | } | |
566 | ||
a7737e44 | 567 | static void bus_set_realized(Object *obj, bool value, Error **errp) |
02e7f85d BD |
568 | { |
569 | BusState *bus = BUS(obj); | |
570 | BusClass *bc = BUS_GET_CLASS(bus); | |
5942a190 | 571 | BusChild *kid; |
02e7f85d BD |
572 | Error *local_err = NULL; |
573 | ||
574 | if (value && !bus->realized) { | |
575 | if (bc->realize) { | |
576 | bc->realize(bus, &local_err); | |
02e7f85d | 577 | } |
5942a190 PB |
578 | |
579 | /* TODO: recursive realization */ | |
02e7f85d | 580 | } else if (!value && bus->realized) { |
5942a190 PB |
581 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
582 | DeviceState *dev = kid->child; | |
583 | object_property_set_bool(OBJECT(dev), false, "realized", | |
584 | &local_err); | |
585 | if (local_err != NULL) { | |
586 | break; | |
587 | } | |
588 | } | |
589 | if (bc->unrealize && local_err == NULL) { | |
02e7f85d | 590 | bc->unrealize(bus, &local_err); |
02e7f85d BD |
591 | } |
592 | } | |
593 | ||
b7b34d05 PB |
594 | if (local_err != NULL) { |
595 | error_propagate(errp, local_err); | |
596 | return; | |
597 | } | |
02e7f85d | 598 | |
b7b34d05 | 599 | bus->realized = value; |
02e7f85d BD |
600 | } |
601 | ||
fb17dfe0 | 602 | void qbus_create_inplace(void *bus, size_t size, const char *typename, |
0d936928 | 603 | DeviceState *parent, const char *name) |
cd739fb6 | 604 | { |
213f0c4f | 605 | object_initialize(bus, size, typename); |
013e1182 | 606 | qbus_realize(bus, parent, name); |
02e2da45 | 607 | } |
cae4956e | 608 | |
0d936928 | 609 | BusState *qbus_create(const char *typename, DeviceState *parent, const char *name) |
2da8bb92 | 610 | { |
cd739fb6 GH |
611 | BusState *bus; |
612 | ||
0d936928 | 613 | bus = BUS(object_new(typename)); |
013e1182 | 614 | qbus_realize(bus, parent, name); |
ac7d1ba6 | 615 | |
02e2da45 | 616 | return bus; |
2da8bb92 IY |
617 | } |
618 | ||
0d936928 AL |
619 | static char *bus_get_fw_dev_path(BusState *bus, DeviceState *dev) |
620 | { | |
621 | BusClass *bc = BUS_GET_CLASS(bus); | |
622 | ||
623 | if (bc->get_fw_dev_path) { | |
624 | return bc->get_fw_dev_path(dev); | |
131ec1bd | 625 | } |
0d936928 AL |
626 | |
627 | return NULL; | |
131ec1bd GH |
628 | } |
629 | ||
6b1566cb PB |
630 | static char *qdev_get_fw_dev_path_from_handler(BusState *bus, DeviceState *dev) |
631 | { | |
632 | Object *obj = OBJECT(dev); | |
633 | char *d = NULL; | |
634 | ||
635 | while (!d && obj->parent) { | |
636 | obj = obj->parent; | |
637 | d = fw_path_provider_try_get_dev_path(obj, bus, dev); | |
638 | } | |
639 | return d; | |
640 | } | |
641 | ||
1ca4d09a GN |
642 | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
643 | { | |
644 | int l = 0; | |
645 | ||
646 | if (dev && dev->parent_bus) { | |
647 | char *d; | |
648 | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); | |
6b1566cb PB |
649 | d = qdev_get_fw_dev_path_from_handler(dev->parent_bus, dev); |
650 | if (!d) { | |
651 | d = bus_get_fw_dev_path(dev->parent_bus, dev); | |
652 | } | |
0d936928 | 653 | if (d) { |
1ca4d09a | 654 | l += snprintf(p + l, size - l, "%s", d); |
7267c094 | 655 | g_free(d); |
1ca4d09a | 656 | } else { |
bbfa18fc | 657 | return l; |
1ca4d09a GN |
658 | } |
659 | } | |
660 | l += snprintf(p + l , size - l, "/"); | |
661 | ||
662 | return l; | |
663 | } | |
664 | ||
665 | char* qdev_get_fw_dev_path(DeviceState *dev) | |
666 | { | |
667 | char path[128]; | |
668 | int l; | |
669 | ||
670 | l = qdev_get_fw_dev_path_helper(dev, path, 128); | |
671 | ||
672 | path[l-1] = '\0'; | |
673 | ||
a5cf8262 | 674 | return g_strdup(path); |
1ca4d09a | 675 | } |
85ed303b | 676 | |
09e5ab63 | 677 | char *qdev_get_dev_path(DeviceState *dev) |
85ed303b | 678 | { |
0d936928 | 679 | BusClass *bc; |
09e5ab63 AL |
680 | |
681 | if (!dev || !dev->parent_bus) { | |
682 | return NULL; | |
683 | } | |
684 | ||
0d936928 AL |
685 | bc = BUS_GET_CLASS(dev->parent_bus); |
686 | if (bc->get_dev_path) { | |
687 | return bc->get_dev_path(dev); | |
09e5ab63 AL |
688 | } |
689 | ||
690 | return NULL; | |
44677ded | 691 | } |
a5296ca9 AL |
692 | |
693 | /** | |
694 | * Legacy property handling | |
695 | */ | |
696 | ||
57c9fafe | 697 | static void qdev_get_legacy_property(Object *obj, Visitor *v, void *opaque, |
a5296ca9 AL |
698 | const char *name, Error **errp) |
699 | { | |
57c9fafe | 700 | DeviceState *dev = DEVICE(obj); |
a5296ca9 AL |
701 | Property *prop = opaque; |
702 | ||
e3cb6ba6 PB |
703 | char buffer[1024]; |
704 | char *ptr = buffer; | |
a5296ca9 | 705 | |
e3cb6ba6 PB |
706 | prop->info->print(dev, prop, buffer, sizeof(buffer)); |
707 | visit_type_str(v, &ptr, name, errp); | |
a5296ca9 AL |
708 | } |
709 | ||
a5296ca9 AL |
710 | /** |
711 | * @qdev_add_legacy_property - adds a legacy property | |
712 | * | |
713 | * Do not use this is new code! Properties added through this interface will | |
ca2cc788 | 714 | * be given names and types in the "legacy" namespace. |
a5296ca9 | 715 | * |
68ee3569 PB |
716 | * Legacy properties are string versions of other OOM properties. The format |
717 | * of the string depends on the property type. | |
a5296ca9 | 718 | */ |
f5a014d2 SW |
719 | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
720 | Error **errp) | |
a5296ca9 | 721 | { |
7ce7ffe0 | 722 | gchar *name; |
a5296ca9 | 723 | |
f3be016d | 724 | /* Register pointer properties as legacy properties */ |
03ff7770 | 725 | if (!prop->info->print && prop->info->get) { |
68ee3569 PB |
726 | return; |
727 | } | |
f3be016d | 728 | |
ca2cc788 | 729 | name = g_strdup_printf("legacy-%s", prop->name); |
7ce7ffe0 | 730 | object_property_add(OBJECT(dev), name, "str", |
68ee3569 | 731 | prop->info->print ? qdev_get_legacy_property : prop->info->get, |
03ff7770 | 732 | NULL, |
57c9fafe AL |
733 | NULL, |
734 | prop, errp); | |
a5296ca9 | 735 | |
ca2cc788 PB |
736 | g_free(name); |
737 | } | |
738 | ||
739 | /** | |
740 | * @qdev_property_add_static - add a @Property to a device. | |
741 | * | |
742 | * Static properties access data in a struct. The actual type of the | |
743 | * property and the field depends on the property type. | |
744 | */ | |
745 | void qdev_property_add_static(DeviceState *dev, Property *prop, | |
746 | Error **errp) | |
747 | { | |
fdae245f PB |
748 | Error *local_err = NULL; |
749 | Object *obj = OBJECT(dev); | |
750 | ||
d822979b PB |
751 | /* |
752 | * TODO qdev_prop_ptr does not have getters or setters. It must | |
753 | * go now that it can be replaced with links. The test should be | |
754 | * removed along with it: all static properties are read/write. | |
755 | */ | |
756 | if (!prop->info->get && !prop->info->set) { | |
757 | return; | |
758 | } | |
759 | ||
fdae245f | 760 | object_property_add(obj, prop->name, prop->info->name, |
57c9fafe | 761 | prop->info->get, prop->info->set, |
dd0ba250 | 762 | prop->info->release, |
fdae245f PB |
763 | prop, &local_err); |
764 | ||
765 | if (local_err) { | |
766 | error_propagate(errp, local_err); | |
767 | return; | |
768 | } | |
769 | if (prop->qtype == QTYPE_NONE) { | |
770 | return; | |
771 | } | |
772 | ||
773 | if (prop->qtype == QTYPE_QBOOL) { | |
5433a0a8 | 774 | object_property_set_bool(obj, prop->defval, prop->name, &error_abort); |
fdae245f PB |
775 | } else if (prop->info->enum_table) { |
776 | object_property_set_str(obj, prop->info->enum_table[prop->defval], | |
5433a0a8 | 777 | prop->name, &error_abort); |
fdae245f | 778 | } else if (prop->qtype == QTYPE_QINT) { |
5433a0a8 | 779 | object_property_set_int(obj, prop->defval, prop->name, &error_abort); |
fdae245f | 780 | } |
6a146eba | 781 | } |
1de81d28 | 782 | |
67cc7e0a SH |
783 | /* @qdev_alias_all_properties - Add alias properties to the source object for |
784 | * all qdev properties on the target DeviceState. | |
785 | */ | |
786 | void qdev_alias_all_properties(DeviceState *target, Object *source) | |
787 | { | |
788 | ObjectClass *class; | |
789 | Property *prop; | |
790 | ||
791 | class = object_get_class(OBJECT(target)); | |
792 | do { | |
793 | DeviceClass *dc = DEVICE_CLASS(class); | |
794 | ||
795 | for (prop = dc->props; prop && prop->name; prop++) { | |
796 | object_property_add_alias(source, prop->name, | |
797 | OBJECT(target), prop->name, | |
798 | &error_abort); | |
799 | } | |
800 | class = object_class_get_parent(class); | |
801 | } while (class != object_class_by_name(TYPE_DEVICE)); | |
802 | } | |
803 | ||
a7737e44 | 804 | static bool device_get_realized(Object *obj, Error **errp) |
249d4172 AF |
805 | { |
806 | DeviceState *dev = DEVICE(obj); | |
807 | return dev->realized; | |
808 | } | |
809 | ||
a7737e44 | 810 | static void device_set_realized(Object *obj, bool value, Error **errp) |
249d4172 AF |
811 | { |
812 | DeviceState *dev = DEVICE(obj); | |
813 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
5c21ce77 | 814 | BusState *bus; |
249d4172 AF |
815 | Error *local_err = NULL; |
816 | ||
1a37eca1 | 817 | if (dev->hotplugged && !dc->hotpluggable) { |
a7737e44 | 818 | error_set(errp, QERR_DEVICE_NO_HOTPLUG, object_get_typename(obj)); |
1a37eca1 IM |
819 | return; |
820 | } | |
821 | ||
249d4172 | 822 | if (value && !dev->realized) { |
d578029e | 823 | if (!obj->parent) { |
249d4172 AF |
824 | static int unattached_count; |
825 | gchar *name = g_strdup_printf("device[%d]", unattached_count++); | |
826 | ||
827 | object_property_add_child(container_get(qdev_get_machine(), | |
828 | "/unattached"), | |
d578029e | 829 | name, obj, &error_abort); |
249d4172 AF |
830 | g_free(name); |
831 | } | |
832 | ||
a7ddba52 IM |
833 | if (dc->realize) { |
834 | dc->realize(dev, &local_err); | |
835 | } | |
836 | ||
1d45a705 GA |
837 | if (local_err != NULL) { |
838 | goto fail; | |
839 | } | |
840 | ||
841 | if (dev->parent_bus && dev->parent_bus->hotplug_handler) { | |
5e954943 IM |
842 | hotplug_handler_plug(dev->parent_bus->hotplug_handler, |
843 | dev, &local_err); | |
1d45a705 | 844 | } else if (object_dynamic_cast(qdev_get_machine(), TYPE_MACHINE)) { |
b7454548 IM |
845 | HotplugHandler *hotplug_ctrl; |
846 | MachineState *machine = MACHINE(qdev_get_machine()); | |
847 | MachineClass *mc = MACHINE_GET_CLASS(machine); | |
848 | ||
849 | if (mc->get_hotplug_handler) { | |
850 | hotplug_ctrl = mc->get_hotplug_handler(machine, dev); | |
851 | if (hotplug_ctrl) { | |
852 | hotplug_handler_plug(hotplug_ctrl, dev, &local_err); | |
853 | } | |
854 | } | |
5e954943 IM |
855 | } |
856 | ||
1d45a705 GA |
857 | if (local_err != NULL) { |
858 | goto post_realize_fail; | |
859 | } | |
860 | ||
861 | if (qdev_get_vmsd(dev)) { | |
249d4172 AF |
862 | vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev, |
863 | dev->instance_id_alias, | |
864 | dev->alias_required_for_version); | |
865 | } | |
1d45a705 GA |
866 | |
867 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
868 | object_property_set_bool(OBJECT(bus), true, "realized", | |
5c21ce77 | 869 | &local_err); |
1d45a705 GA |
870 | if (local_err != NULL) { |
871 | goto child_realize_fail; | |
5c21ce77 BD |
872 | } |
873 | } | |
1d45a705 | 874 | if (dev->hotplugged) { |
249d4172 AF |
875 | device_reset(dev); |
876 | } | |
352e8da7 | 877 | dev->pending_deleted_event = false; |
249d4172 | 878 | } else if (!value && dev->realized) { |
cd4520ad | 879 | Error **local_errp = NULL; |
5c21ce77 | 880 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
cd4520ad | 881 | local_errp = local_err ? NULL : &local_err; |
5c21ce77 | 882 | object_property_set_bool(OBJECT(bus), false, "realized", |
cd4520ad | 883 | local_errp); |
5c21ce77 | 884 | } |
cd4520ad | 885 | if (qdev_get_vmsd(dev)) { |
fe6c2117 AF |
886 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); |
887 | } | |
cd4520ad GA |
888 | if (dc->unrealize) { |
889 | local_errp = local_err ? NULL : &local_err; | |
890 | dc->unrealize(dev, local_errp); | |
249d4172 | 891 | } |
352e8da7 | 892 | dev->pending_deleted_event = true; |
249d4172 AF |
893 | } |
894 | ||
895 | if (local_err != NULL) { | |
1d45a705 | 896 | goto fail; |
249d4172 AF |
897 | } |
898 | ||
899 | dev->realized = value; | |
1d45a705 GA |
900 | return; |
901 | ||
902 | child_realize_fail: | |
903 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
904 | object_property_set_bool(OBJECT(bus), false, "realized", | |
905 | NULL); | |
906 | } | |
907 | ||
908 | if (qdev_get_vmsd(dev)) { | |
909 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); | |
910 | } | |
911 | ||
912 | post_realize_fail: | |
913 | if (dc->unrealize) { | |
914 | dc->unrealize(dev, NULL); | |
915 | } | |
916 | ||
917 | fail: | |
918 | error_propagate(errp, local_err); | |
919 | return; | |
249d4172 AF |
920 | } |
921 | ||
a7737e44 | 922 | static bool device_get_hotpluggable(Object *obj, Error **errp) |
1a37eca1 IM |
923 | { |
924 | DeviceClass *dc = DEVICE_GET_CLASS(obj); | |
925 | DeviceState *dev = DEVICE(obj); | |
926 | ||
2b81b35f AF |
927 | return dc->hotpluggable && (dev->parent_bus == NULL || |
928 | dev->parent_bus->allow_hotplug); | |
1a37eca1 IM |
929 | } |
930 | ||
d012ffc1 IM |
931 | static bool device_get_hotplugged(Object *obj, Error **err) |
932 | { | |
933 | DeviceState *dev = DEVICE(obj); | |
934 | ||
935 | return dev->hotplugged; | |
936 | } | |
937 | ||
938 | static void device_set_hotplugged(Object *obj, bool value, Error **err) | |
939 | { | |
940 | DeviceState *dev = DEVICE(obj); | |
941 | ||
942 | dev->hotplugged = value; | |
943 | } | |
944 | ||
9674bfe4 AL |
945 | static void device_initfn(Object *obj) |
946 | { | |
947 | DeviceState *dev = DEVICE(obj); | |
bce54474 | 948 | ObjectClass *class; |
9674bfe4 AL |
949 | Property *prop; |
950 | ||
951 | if (qdev_hotplug) { | |
952 | dev->hotplugged = 1; | |
953 | qdev_hot_added = true; | |
954 | } | |
955 | ||
956 | dev->instance_id_alias = -1; | |
7983c8a3 | 957 | dev->realized = false; |
9674bfe4 | 958 | |
249d4172 AF |
959 | object_property_add_bool(obj, "realized", |
960 | device_get_realized, device_set_realized, NULL); | |
1a37eca1 IM |
961 | object_property_add_bool(obj, "hotpluggable", |
962 | device_get_hotpluggable, NULL, NULL); | |
d012ffc1 IM |
963 | object_property_add_bool(obj, "hotplugged", |
964 | device_get_hotplugged, device_set_hotplugged, | |
965 | &error_abort); | |
249d4172 | 966 | |
bce54474 PB |
967 | class = object_get_class(OBJECT(dev)); |
968 | do { | |
969 | for (prop = DEVICE_CLASS(class)->props; prop && prop->name; prop++) { | |
5433a0a8 PC |
970 | qdev_property_add_legacy(dev, prop, &error_abort); |
971 | qdev_property_add_static(dev, prop, &error_abort); | |
bce54474 | 972 | } |
bce54474 PB |
973 | class = object_class_get_parent(class); |
974 | } while (class != object_class_by_name(TYPE_DEVICE)); | |
9674bfe4 | 975 | |
f968fc68 | 976 | object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS, |
39f72ef9 | 977 | (Object **)&dev->parent_bus, NULL, 0, |
9561fda8 | 978 | &error_abort); |
a5f54290 | 979 | QLIST_INIT(&dev->gpios); |
9674bfe4 AL |
980 | } |
981 | ||
99a0b036 EH |
982 | static void device_post_init(Object *obj) |
983 | { | |
31962700 EH |
984 | Error *err = NULL; |
985 | qdev_prop_set_globals(DEVICE(obj), &err); | |
986 | if (err) { | |
987 | qerror_report_err(err); | |
988 | error_free(err); | |
989 | exit(EXIT_FAILURE); | |
990 | } | |
99a0b036 EH |
991 | } |
992 | ||
60adba37 AL |
993 | /* Unlink device from bus and free the structure. */ |
994 | static void device_finalize(Object *obj) | |
995 | { | |
a5f54290 PC |
996 | NamedGPIOList *ngl, *next; |
997 | ||
60adba37 | 998 | DeviceState *dev = DEVICE(obj); |
06f7f2bb PB |
999 | if (dev->opts) { |
1000 | qemu_opts_del(dev->opts); | |
60adba37 | 1001 | } |
a5f54290 PC |
1002 | |
1003 | QLIST_FOREACH_SAFE(ngl, &dev->gpios, node, next) { | |
1004 | QLIST_REMOVE(ngl, node); | |
f173d57a | 1005 | qemu_free_irqs(ngl->in, ngl->num_in); |
a5f54290 PC |
1006 | g_free(ngl->name); |
1007 | g_free(ngl); | |
1008 | /* ngl->out irqs are owned by the other end and should not be freed | |
1009 | * here | |
1010 | */ | |
1011 | } | |
60adba37 AL |
1012 | } |
1013 | ||
bce54474 PB |
1014 | static void device_class_base_init(ObjectClass *class, void *data) |
1015 | { | |
1016 | DeviceClass *klass = DEVICE_CLASS(class); | |
1017 | ||
1018 | /* We explicitly look up properties in the superclasses, | |
1019 | * so do not propagate them to the subclasses. | |
1020 | */ | |
1021 | klass->props = NULL; | |
60adba37 AL |
1022 | } |
1023 | ||
5d5b24d0 | 1024 | static void device_unparent(Object *obj) |
667d22d1 PB |
1025 | { |
1026 | DeviceState *dev = DEVICE(obj); | |
06f7f2bb | 1027 | BusState *bus; |
667d22d1 | 1028 | |
5c21ce77 BD |
1029 | if (dev->realized) { |
1030 | object_property_set_bool(obj, false, "realized", NULL); | |
1031 | } | |
06f7f2bb PB |
1032 | while (dev->num_child_bus) { |
1033 | bus = QLIST_FIRST(&dev->child_bus); | |
6780a22c | 1034 | object_unparent(OBJECT(bus)); |
06f7f2bb | 1035 | } |
06f7f2bb | 1036 | if (dev->parent_bus) { |
5d5b24d0 | 1037 | bus_remove_child(dev->parent_bus, dev); |
62d7ba66 PB |
1038 | object_unref(OBJECT(dev->parent_bus)); |
1039 | dev->parent_bus = NULL; | |
5d5b24d0 | 1040 | } |
0402a5d6 | 1041 | |
b1ee5829 | 1042 | /* Only send event if the device had been completely realized */ |
352e8da7 | 1043 | if (dev->pending_deleted_event) { |
b1ee5829 AL |
1044 | gchar *path = object_get_canonical_path(OBJECT(dev)); |
1045 | ||
24b699fb | 1046 | qapi_event_send_device_deleted(!!dev->id, dev->id, path, &error_abort); |
b1ee5829 | 1047 | g_free(path); |
0402a5d6 | 1048 | } |
667d22d1 PB |
1049 | } |
1050 | ||
1051 | static void device_class_init(ObjectClass *class, void *data) | |
1052 | { | |
249d4172 AF |
1053 | DeviceClass *dc = DEVICE_CLASS(class); |
1054 | ||
5d5b24d0 | 1055 | class->unparent = device_unparent; |
249d4172 | 1056 | dc->realize = device_realize; |
fe6c2117 | 1057 | dc->unrealize = device_unrealize; |
267a3264 IM |
1058 | |
1059 | /* by default all devices were considered as hotpluggable, | |
1060 | * so with intent to check it in generic qdev_unplug() / | |
1061 | * device_set_realized() functions make every device | |
1062 | * hotpluggable. Devices that shouldn't be hotpluggable, | |
1063 | * should override it in their class_init() | |
1064 | */ | |
1065 | dc->hotpluggable = true; | |
667d22d1 PB |
1066 | } |
1067 | ||
94afdadc AL |
1068 | void device_reset(DeviceState *dev) |
1069 | { | |
1070 | DeviceClass *klass = DEVICE_GET_CLASS(dev); | |
1071 | ||
1072 | if (klass->reset) { | |
1073 | klass->reset(dev); | |
1074 | } | |
1075 | } | |
1076 | ||
f05f6b4a PB |
1077 | Object *qdev_get_machine(void) |
1078 | { | |
1079 | static Object *dev; | |
1080 | ||
1081 | if (dev == NULL) { | |
dfe47e70 | 1082 | dev = container_get(object_get_root(), "/machine"); |
f05f6b4a PB |
1083 | } |
1084 | ||
1085 | return dev; | |
1086 | } | |
1087 | ||
8c43a6f0 | 1088 | static const TypeInfo device_type_info = { |
32fea402 AL |
1089 | .name = TYPE_DEVICE, |
1090 | .parent = TYPE_OBJECT, | |
1091 | .instance_size = sizeof(DeviceState), | |
9674bfe4 | 1092 | .instance_init = device_initfn, |
99a0b036 | 1093 | .instance_post_init = device_post_init, |
60adba37 | 1094 | .instance_finalize = device_finalize, |
bce54474 | 1095 | .class_base_init = device_class_base_init, |
667d22d1 | 1096 | .class_init = device_class_init, |
32fea402 AL |
1097 | .abstract = true, |
1098 | .class_size = sizeof(DeviceClass), | |
1099 | }; | |
1100 | ||
ac7d1ba6 AL |
1101 | static void qbus_initfn(Object *obj) |
1102 | { | |
1103 | BusState *bus = BUS(obj); | |
1104 | ||
1105 | QTAILQ_INIT(&bus->children); | |
0ee4de6c IM |
1106 | object_property_add_link(obj, QDEV_HOTPLUG_HANDLER_PROPERTY, |
1107 | TYPE_HOTPLUG_HANDLER, | |
9561fda8 | 1108 | (Object **)&bus->hotplug_handler, |
39f72ef9 | 1109 | object_property_allow_set_link, |
9561fda8 SH |
1110 | OBJ_PROP_LINK_UNREF_ON_RELEASE, |
1111 | NULL); | |
02e7f85d BD |
1112 | object_property_add_bool(obj, "realized", |
1113 | bus_get_realized, bus_set_realized, NULL); | |
ac7d1ba6 AL |
1114 | } |
1115 | ||
bbfa18fc AK |
1116 | static char *default_bus_get_fw_dev_path(DeviceState *dev) |
1117 | { | |
1118 | return g_strdup(object_get_typename(OBJECT(dev))); | |
1119 | } | |
1120 | ||
6853d27a PB |
1121 | static void bus_class_init(ObjectClass *class, void *data) |
1122 | { | |
bbfa18fc AK |
1123 | BusClass *bc = BUS_CLASS(class); |
1124 | ||
6853d27a | 1125 | class->unparent = bus_unparent; |
bbfa18fc | 1126 | bc->get_fw_dev_path = default_bus_get_fw_dev_path; |
6853d27a PB |
1127 | } |
1128 | ||
ac7d1ba6 AL |
1129 | static void qbus_finalize(Object *obj) |
1130 | { | |
1131 | BusState *bus = BUS(obj); | |
ac7d1ba6 | 1132 | |
ac7d1ba6 AL |
1133 | g_free((char *)bus->name); |
1134 | } | |
1135 | ||
0d936928 AL |
1136 | static const TypeInfo bus_info = { |
1137 | .name = TYPE_BUS, | |
1138 | .parent = TYPE_OBJECT, | |
1139 | .instance_size = sizeof(BusState), | |
1140 | .abstract = true, | |
1141 | .class_size = sizeof(BusClass), | |
ac7d1ba6 AL |
1142 | .instance_init = qbus_initfn, |
1143 | .instance_finalize = qbus_finalize, | |
6853d27a | 1144 | .class_init = bus_class_init, |
0d936928 AL |
1145 | }; |
1146 | ||
83f7d43a | 1147 | static void qdev_register_types(void) |
32fea402 | 1148 | { |
0d936928 | 1149 | type_register_static(&bus_info); |
32fea402 AL |
1150 | type_register_static(&device_type_info); |
1151 | } | |
1152 | ||
83f7d43a | 1153 | type_init(qdev_register_types) |