]>
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 | ||
18c86e2b | 28 | #include "qemu/osdep.h" |
e688df6b | 29 | #include "qapi/error.h" |
c577ff62 | 30 | #include "qapi/qapi-events-qdev.h" |
b4a42f81 | 31 | #include "qapi/qmp/qerror.h" |
7b1b5d19 | 32 | #include "qapi/visitor.h" |
d49b6836 | 33 | #include "qemu/error-report.h" |
922a01a0 | 34 | #include "qemu/option.h" |
0ee4de6c | 35 | #include "hw/hotplug.h" |
64552b6b | 36 | #include "hw/irq.h" |
a27bd6c7 | 37 | #include "hw/qdev-properties.h" |
b7454548 | 38 | #include "hw/boards.h" |
7474f1be | 39 | #include "hw/sysbus.h" |
d6454270 | 40 | #include "migration/vmstate.h" |
aae9460e | 41 | |
9bed84c1 | 42 | bool qdev_hotplug = false; |
0ac8ef71 | 43 | static bool qdev_hot_added = false; |
21def24a | 44 | bool qdev_hot_removed = false; |
3418bd25 | 45 | |
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 | ||
0866aca1 | 52 | static void bus_remove_child(BusState *bus, DeviceState *child) |
0c17542d | 53 | { |
0866aca1 AL |
54 | BusChild *kid; |
55 | ||
56 | QTAILQ_FOREACH(kid, &bus->children, sibling) { | |
57 | if (kid->child == child) { | |
58 | char name[32]; | |
59 | ||
60 | snprintf(name, sizeof(name), "child[%d]", kid->index); | |
61 | QTAILQ_REMOVE(&bus->children, kid, sibling); | |
9d127820 | 62 | |
12b2e9f3 TK |
63 | bus->num_children--; |
64 | ||
9d127820 | 65 | /* This gives back ownership of kid->child back to us. */ |
0866aca1 | 66 | object_property_del(OBJECT(bus), name, NULL); |
9d127820 | 67 | object_unref(OBJECT(kid->child)); |
0866aca1 AL |
68 | g_free(kid); |
69 | return; | |
70 | } | |
71 | } | |
72 | } | |
73 | ||
74 | static void bus_add_child(BusState *bus, DeviceState *child) | |
75 | { | |
76 | char name[32]; | |
77 | BusChild *kid = g_malloc0(sizeof(*kid)); | |
0c17542d | 78 | |
12b2e9f3 | 79 | bus->num_children++; |
0866aca1 AL |
80 | kid->index = bus->max_index++; |
81 | kid->child = child; | |
9d127820 | 82 | object_ref(OBJECT(kid->child)); |
a5296ca9 | 83 | |
0866aca1 AL |
84 | QTAILQ_INSERT_HEAD(&bus->children, kid, sibling); |
85 | ||
9d127820 | 86 | /* This transfers ownership of kid->child to the property. */ |
0866aca1 AL |
87 | snprintf(name, sizeof(name), "child[%d]", kid->index); |
88 | object_property_add_link(OBJECT(bus), name, | |
89 | object_get_typename(OBJECT(child)), | |
39f72ef9 SH |
90 | (Object **)&kid->child, |
91 | NULL, /* read-only property */ | |
92 | 0, /* return ownership on prop deletion */ | |
93 | NULL); | |
0866aca1 AL |
94 | } |
95 | ||
96 | void qdev_set_parent_bus(DeviceState *dev, BusState *bus) | |
97 | { | |
91c968ac PM |
98 | bool replugging = dev->parent_bus != NULL; |
99 | ||
100 | if (replugging) { | |
101 | /* Keep a reference to the device while it's not plugged into | |
102 | * any bus, to avoid it potentially evaporating when it is | |
103 | * dereffed in bus_remove_child(). | |
104 | */ | |
105 | object_ref(OBJECT(dev)); | |
106 | bus_remove_child(dev->parent_bus, dev); | |
107 | object_unref(OBJECT(dev->parent_bus)); | |
108 | } | |
9fbe6127 | 109 | dev->parent_bus = bus; |
62d7ba66 | 110 | object_ref(OBJECT(bus)); |
0866aca1 | 111 | bus_add_child(bus, dev); |
91c968ac PM |
112 | if (replugging) { |
113 | object_unref(OBJECT(dev)); | |
114 | } | |
0c17542d MA |
115 | } |
116 | ||
0210afe6 MA |
117 | /* Create a new device. This only initializes the device state |
118 | structure and allows properties to be set. The device still needs | |
119 | to be realized. See qdev-core.h. */ | |
02e2da45 | 120 | DeviceState *qdev_create(BusState *bus, const char *name) |
0bcdeda7 BS |
121 | { |
122 | DeviceState *dev; | |
123 | ||
124 | dev = qdev_try_create(bus, name); | |
125 | if (!dev) { | |
e92714c7 | 126 | if (bus) { |
312fd5f2 | 127 | error_report("Unknown device '%s' for bus '%s'", name, |
23e3fbec | 128 | object_get_typename(OBJECT(bus))); |
e92714c7 | 129 | } else { |
312fd5f2 | 130 | error_report("Unknown device '%s' for default sysbus", name); |
e92714c7 | 131 | } |
01ed1d52 | 132 | abort(); |
0bcdeda7 BS |
133 | } |
134 | ||
135 | return dev; | |
136 | } | |
137 | ||
da57febf | 138 | DeviceState *qdev_try_create(BusState *bus, const char *type) |
aae9460e | 139 | { |
9fbe6127 AL |
140 | DeviceState *dev; |
141 | ||
da57febf | 142 | if (object_class_by_name(type) == NULL) { |
4ed658ca AF |
143 | return NULL; |
144 | } | |
da57febf | 145 | dev = DEVICE(object_new(type)); |
9fbe6127 AL |
146 | if (!dev) { |
147 | return NULL; | |
148 | } | |
149 | ||
10c4c98a | 150 | if (!bus) { |
7474f1be PM |
151 | /* Assert that the device really is a SysBusDevice before |
152 | * we put it onto the sysbus. Non-sysbus devices which aren't | |
153 | * being put onto a bus should be created with object_new(TYPE_FOO), | |
154 | * not qdev_create(NULL, TYPE_FOO). | |
155 | */ | |
156 | g_assert(object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE)); | |
68694897 | 157 | bus = sysbus_get_default(); |
10c4c98a GH |
158 | } |
159 | ||
9fbe6127 | 160 | qdev_set_parent_bus(dev, bus); |
b09995ae | 161 | object_unref(OBJECT(dev)); |
9fbe6127 | 162 | return dev; |
aae9460e PB |
163 | } |
164 | ||
eae3eb3e | 165 | static QTAILQ_HEAD(, DeviceListener) device_listeners |
707ff800 PD |
166 | = QTAILQ_HEAD_INITIALIZER(device_listeners); |
167 | ||
168 | enum ListenerDirection { Forward, Reverse }; | |
169 | ||
170 | #define DEVICE_LISTENER_CALL(_callback, _direction, _args...) \ | |
171 | do { \ | |
172 | DeviceListener *_listener; \ | |
173 | \ | |
174 | switch (_direction) { \ | |
175 | case Forward: \ | |
176 | QTAILQ_FOREACH(_listener, &device_listeners, link) { \ | |
177 | if (_listener->_callback) { \ | |
178 | _listener->_callback(_listener, ##_args); \ | |
179 | } \ | |
180 | } \ | |
181 | break; \ | |
182 | case Reverse: \ | |
183 | QTAILQ_FOREACH_REVERSE(_listener, &device_listeners, \ | |
eae3eb3e | 184 | link) { \ |
707ff800 PD |
185 | if (_listener->_callback) { \ |
186 | _listener->_callback(_listener, ##_args); \ | |
187 | } \ | |
188 | } \ | |
189 | break; \ | |
190 | default: \ | |
191 | abort(); \ | |
192 | } \ | |
193 | } while (0) | |
194 | ||
195 | static int device_listener_add(DeviceState *dev, void *opaque) | |
196 | { | |
197 | DEVICE_LISTENER_CALL(realize, Forward, dev); | |
198 | ||
199 | return 0; | |
200 | } | |
201 | ||
202 | void device_listener_register(DeviceListener *listener) | |
203 | { | |
204 | QTAILQ_INSERT_TAIL(&device_listeners, listener, link); | |
205 | ||
206 | qbus_walk_children(sysbus_get_default(), NULL, NULL, device_listener_add, | |
207 | NULL, NULL); | |
208 | } | |
209 | ||
210 | void device_listener_unregister(DeviceListener *listener) | |
211 | { | |
212 | QTAILQ_REMOVE(&device_listeners, listener, link); | |
213 | } | |
214 | ||
f3a85056 JF |
215 | bool qdev_should_hide_device(QemuOpts *opts) |
216 | { | |
217 | int rc = -1; | |
218 | DeviceListener *listener; | |
219 | ||
220 | QTAILQ_FOREACH(listener, &device_listeners, link) { | |
221 | if (listener->should_be_hidden) { | |
222 | /* | |
223 | * should_be_hidden_will return | |
224 | * 1 if device matches opts and it should be hidden | |
225 | * 0 if device matches opts and should not be hidden | |
226 | * -1 if device doesn't match ops | |
227 | */ | |
228 | rc = listener->should_be_hidden(listener, opts); | |
229 | } | |
230 | ||
231 | if (rc > 0) { | |
232 | break; | |
233 | } | |
234 | } | |
235 | ||
236 | return rc > 0; | |
237 | } | |
238 | ||
4d2ffa08 JK |
239 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
240 | int required_for_version) | |
241 | { | |
7983c8a3 | 242 | assert(!dev->realized); |
4d2ffa08 JK |
243 | dev->instance_id_alias = alias_id; |
244 | dev->alias_required_for_version = required_for_version; | |
245 | } | |
246 | ||
03fcbd9d TH |
247 | HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev) |
248 | { | |
249 | MachineState *machine; | |
250 | MachineClass *mc; | |
251 | Object *m_obj = qdev_get_machine(); | |
252 | ||
253 | if (object_dynamic_cast(m_obj, TYPE_MACHINE)) { | |
254 | machine = MACHINE(m_obj); | |
255 | mc = MACHINE_GET_CLASS(machine); | |
256 | if (mc->get_hotplug_handler) { | |
257 | return mc->get_hotplug_handler(machine, dev); | |
258 | } | |
259 | } | |
260 | ||
261 | return NULL; | |
262 | } | |
263 | ||
d2321d31 PX |
264 | bool qdev_hotplug_allowed(DeviceState *dev, Error **errp) |
265 | { | |
266 | MachineState *machine; | |
267 | MachineClass *mc; | |
268 | Object *m_obj = qdev_get_machine(); | |
269 | ||
270 | if (object_dynamic_cast(m_obj, TYPE_MACHINE)) { | |
271 | machine = MACHINE(m_obj); | |
272 | mc = MACHINE_GET_CLASS(machine); | |
273 | if (mc->hotplug_allowed) { | |
274 | return mc->hotplug_allowed(machine, dev, errp); | |
275 | } | |
276 | } | |
277 | ||
278 | return true; | |
279 | } | |
280 | ||
14405c27 DH |
281 | HotplugHandler *qdev_get_bus_hotplug_handler(DeviceState *dev) |
282 | { | |
283 | if (dev->parent_bus) { | |
284 | return dev->parent_bus->hotplug_handler; | |
285 | } | |
286 | return NULL; | |
287 | } | |
288 | ||
c06b2ffb | 289 | HotplugHandler *qdev_get_hotplug_handler(DeviceState *dev) |
7716b8ca | 290 | { |
17cc0128 | 291 | HotplugHandler *hotplug_ctrl = qdev_get_machine_hotplug_handler(dev); |
7716b8ca | 292 | |
17cc0128 | 293 | if (hotplug_ctrl == NULL && dev->parent_bus) { |
14405c27 | 294 | hotplug_ctrl = qdev_get_bus_hotplug_handler(dev); |
7716b8ca IM |
295 | } |
296 | return hotplug_ctrl; | |
297 | } | |
298 | ||
ec990eb6 AL |
299 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
300 | { | |
94afdadc | 301 | device_reset(dev); |
ec990eb6 AL |
302 | |
303 | return 0; | |
304 | } | |
305 | ||
b4694b7c IY |
306 | static int qbus_reset_one(BusState *bus, void *opaque) |
307 | { | |
0d936928 AL |
308 | BusClass *bc = BUS_GET_CLASS(bus); |
309 | if (bc->reset) { | |
dcc20931 | 310 | bc->reset(bus); |
b4694b7c IY |
311 | } |
312 | return 0; | |
313 | } | |
314 | ||
5af0a04b IY |
315 | void qdev_reset_all(DeviceState *dev) |
316 | { | |
dcc20931 | 317 | qdev_walk_children(dev, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL); |
5af0a04b IY |
318 | } |
319 | ||
ff8de075 DH |
320 | void qdev_reset_all_fn(void *opaque) |
321 | { | |
322 | qdev_reset_all(DEVICE(opaque)); | |
323 | } | |
324 | ||
d0508c36 PB |
325 | void qbus_reset_all(BusState *bus) |
326 | { | |
dcc20931 | 327 | qbus_walk_children(bus, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL); |
d0508c36 PB |
328 | } |
329 | ||
80376c3f IY |
330 | void qbus_reset_all_fn(void *opaque) |
331 | { | |
332 | BusState *bus = opaque; | |
d0508c36 | 333 | qbus_reset_all(bus); |
80376c3f IY |
334 | } |
335 | ||
3418bd25 | 336 | /* can be used as ->unplug() callback for the simple cases */ |
014176f9 IM |
337 | void qdev_simple_device_unplug_cb(HotplugHandler *hotplug_dev, |
338 | DeviceState *dev, Error **errp) | |
339 | { | |
07578b0a | 340 | object_property_set_bool(OBJECT(dev), false, "realized", NULL); |
014176f9 | 341 | } |
3b29a101 | 342 | |
0210afe6 MA |
343 | /* |
344 | * Realize @dev. | |
345 | * Device properties should be set before calling this function. IRQs | |
346 | * and MMIO regions should be connected/mapped after calling this | |
347 | * function. | |
348 | * On failure, report an error with error_report() and terminate the | |
349 | * program. This is okay during machine creation. Don't use for | |
350 | * hotplug, because there callers need to recover from failure. | |
351 | * Exception: if you know the device's init() callback can't fail, | |
352 | * then qdev_init_nofail() can't fail either, and is therefore usable | |
353 | * even then. But relying on the device implementation that way is | |
354 | * somewhat unclean, and best avoided. | |
355 | */ | |
e23a1b33 MA |
356 | void qdev_init_nofail(DeviceState *dev) |
357 | { | |
c4bacafb | 358 | Error *err = NULL; |
7de3abe5 | 359 | |
c4bacafb MA |
360 | assert(!dev->realized); |
361 | ||
0d4104e5 | 362 | object_ref(OBJECT(dev)); |
c4bacafb MA |
363 | object_property_set_bool(OBJECT(dev), true, "realized", &err); |
364 | if (err) { | |
c29b77f9 MA |
365 | error_reportf_err(err, "Initialization of device %s failed: ", |
366 | object_get_typename(OBJECT(dev))); | |
bd6c9a61 MA |
367 | exit(1); |
368 | } | |
0d4104e5 | 369 | object_unref(OBJECT(dev)); |
e23a1b33 MA |
370 | } |
371 | ||
3418bd25 GH |
372 | void qdev_machine_creation_done(void) |
373 | { | |
374 | /* | |
375 | * ok, initial machine setup is done, starting from now we can | |
376 | * only create hotpluggable devices | |
377 | */ | |
9bed84c1 | 378 | qdev_hotplug = true; |
3418bd25 GH |
379 | } |
380 | ||
0ac8ef71 AW |
381 | bool qdev_machine_modified(void) |
382 | { | |
383 | return qdev_hot_added || qdev_hot_removed; | |
384 | } | |
385 | ||
02e2da45 | 386 | BusState *qdev_get_parent_bus(DeviceState *dev) |
aae9460e | 387 | { |
02e2da45 | 388 | return dev->parent_bus; |
aae9460e PB |
389 | } |
390 | ||
a5f54290 PC |
391 | static NamedGPIOList *qdev_get_named_gpio_list(DeviceState *dev, |
392 | const char *name) | |
393 | { | |
394 | NamedGPIOList *ngl; | |
395 | ||
396 | QLIST_FOREACH(ngl, &dev->gpios, node) { | |
397 | /* NULL is a valid and matchable name, otherwise do a normal | |
398 | * strcmp match. | |
399 | */ | |
400 | if ((!ngl->name && !name) || | |
401 | (name && ngl->name && strcmp(name, ngl->name) == 0)) { | |
402 | return ngl; | |
403 | } | |
404 | } | |
405 | ||
406 | ngl = g_malloc0(sizeof(*ngl)); | |
407 | ngl->name = g_strdup(name); | |
408 | QLIST_INSERT_HEAD(&dev->gpios, ngl, node); | |
409 | return ngl; | |
410 | } | |
411 | ||
4a151677 PM |
412 | void qdev_init_gpio_in_named_with_opaque(DeviceState *dev, |
413 | qemu_irq_handler handler, | |
414 | void *opaque, | |
415 | const char *name, int n) | |
a5f54290 | 416 | { |
a69bef1c | 417 | int i; |
a5f54290 PC |
418 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); |
419 | ||
b235a71f | 420 | assert(gpio_list->num_out == 0 || !name); |
a5f54290 | 421 | gpio_list->in = qemu_extend_irqs(gpio_list->in, gpio_list->num_in, handler, |
4a151677 | 422 | opaque, n); |
a69bef1c | 423 | |
6c76b377 PF |
424 | if (!name) { |
425 | name = "unnamed-gpio-in"; | |
426 | } | |
a69bef1c | 427 | for (i = gpio_list->num_in; i < gpio_list->num_in + n; i++) { |
6c76b377 PF |
428 | gchar *propname = g_strdup_printf("%s[%u]", name, i); |
429 | ||
a69bef1c PC |
430 | object_property_add_child(OBJECT(dev), propname, |
431 | OBJECT(gpio_list->in[i]), &error_abort); | |
6c76b377 | 432 | g_free(propname); |
a69bef1c | 433 | } |
a69bef1c | 434 | |
a5f54290 PC |
435 | gpio_list->num_in += n; |
436 | } | |
437 | ||
aae9460e PB |
438 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
439 | { | |
a5f54290 PC |
440 | qdev_init_gpio_in_named(dev, handler, NULL, n); |
441 | } | |
442 | ||
443 | void qdev_init_gpio_out_named(DeviceState *dev, qemu_irq *pins, | |
444 | const char *name, int n) | |
445 | { | |
688b057a | 446 | int i; |
a5f54290 PC |
447 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); |
448 | ||
b235a71f | 449 | assert(gpio_list->num_in == 0 || !name); |
688b057a | 450 | |
6c76b377 PF |
451 | if (!name) { |
452 | name = "unnamed-gpio-out"; | |
453 | } | |
454 | memset(pins, 0, sizeof(*pins) * n); | |
688b057a | 455 | for (i = 0; i < n; ++i) { |
6c76b377 PF |
456 | gchar *propname = g_strdup_printf("%s[%u]", name, |
457 | gpio_list->num_out + i); | |
458 | ||
688b057a PC |
459 | object_property_add_link(OBJECT(dev), propname, TYPE_IRQ, |
460 | (Object **)&pins[i], | |
461 | object_property_allow_set_link, | |
265b578c | 462 | OBJ_PROP_LINK_STRONG, |
688b057a | 463 | &error_abort); |
6c76b377 | 464 | g_free(propname); |
688b057a | 465 | } |
6c76b377 | 466 | gpio_list->num_out += n; |
aae9460e PB |
467 | } |
468 | ||
469 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) | |
470 | { | |
a5f54290 PC |
471 | qdev_init_gpio_out_named(dev, pins, NULL, n); |
472 | } | |
473 | ||
474 | qemu_irq qdev_get_gpio_in_named(DeviceState *dev, const char *name, int n) | |
475 | { | |
476 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); | |
477 | ||
478 | assert(n >= 0 && n < gpio_list->num_in); | |
479 | return gpio_list->in[n]; | |
aae9460e PB |
480 | } |
481 | ||
482 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) | |
483 | { | |
a5f54290 PC |
484 | return qdev_get_gpio_in_named(dev, NULL, n); |
485 | } | |
486 | ||
487 | void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n, | |
488 | qemu_irq pin) | |
489 | { | |
02757df2 PC |
490 | char *propname = g_strdup_printf("%s[%d]", |
491 | name ? name : "unnamed-gpio-out", n); | |
492 | if (pin) { | |
493 | /* We need a name for object_property_set_link to work. If the | |
494 | * object has a parent, object_property_add_child will come back | |
495 | * with an error without doing anything. If it has none, it will | |
496 | * never fail. So we can just call it with a NULL Error pointer. | |
497 | */ | |
88950eef AF |
498 | object_property_add_child(container_get(qdev_get_machine(), |
499 | "/unattached"), | |
500 | "non-qdev-gpio[*]", OBJECT(pin), NULL); | |
02757df2 PC |
501 | } |
502 | object_property_set_link(OBJECT(dev), OBJECT(pin), propname, &error_abort); | |
503 | g_free(propname); | |
aae9460e PB |
504 | } |
505 | ||
b7973186 AG |
506 | qemu_irq qdev_get_gpio_out_connector(DeviceState *dev, const char *name, int n) |
507 | { | |
508 | char *propname = g_strdup_printf("%s[%d]", | |
509 | name ? name : "unnamed-gpio-out", n); | |
510 | ||
511 | qemu_irq ret = (qemu_irq)object_property_get_link(OBJECT(dev), propname, | |
512 | NULL); | |
513 | ||
514 | return ret; | |
515 | } | |
516 | ||
67cc32eb | 517 | /* disconnect a GPIO output, returning the disconnected input (if any) */ |
0c24db2b PC |
518 | |
519 | static qemu_irq qdev_disconnect_gpio_out_named(DeviceState *dev, | |
520 | const char *name, int n) | |
521 | { | |
522 | char *propname = g_strdup_printf("%s[%d]", | |
523 | name ? name : "unnamed-gpio-out", n); | |
524 | ||
525 | qemu_irq ret = (qemu_irq)object_property_get_link(OBJECT(dev), propname, | |
526 | NULL); | |
527 | if (ret) { | |
528 | object_property_set_link(OBJECT(dev), NULL, propname, NULL); | |
529 | } | |
530 | g_free(propname); | |
531 | return ret; | |
532 | } | |
a5f54290 | 533 | |
0c24db2b PC |
534 | qemu_irq qdev_intercept_gpio_out(DeviceState *dev, qemu_irq icpt, |
535 | const char *name, int n) | |
536 | { | |
537 | qemu_irq disconnected = qdev_disconnect_gpio_out_named(dev, name, n); | |
538 | qdev_connect_gpio_out_named(dev, name, n, icpt); | |
539 | return disconnected; | |
aae9460e PB |
540 | } |
541 | ||
542 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) | |
543 | { | |
a5f54290 | 544 | qdev_connect_gpio_out_named(dev, NULL, n, pin); |
aae9460e PB |
545 | } |
546 | ||
17a96a14 PC |
547 | void qdev_pass_gpios(DeviceState *dev, DeviceState *container, |
548 | const char *name) | |
549 | { | |
550 | int i; | |
551 | NamedGPIOList *ngl = qdev_get_named_gpio_list(dev, name); | |
552 | ||
553 | for (i = 0; i < ngl->num_in; i++) { | |
554 | const char *nm = ngl->name ? ngl->name : "unnamed-gpio-in"; | |
555 | char *propname = g_strdup_printf("%s[%d]", nm, i); | |
556 | ||
557 | object_property_add_alias(OBJECT(container), propname, | |
558 | OBJECT(dev), propname, | |
559 | &error_abort); | |
6bc5cf92 | 560 | g_free(propname); |
17a96a14 PC |
561 | } |
562 | for (i = 0; i < ngl->num_out; i++) { | |
563 | const char *nm = ngl->name ? ngl->name : "unnamed-gpio-out"; | |
564 | char *propname = g_strdup_printf("%s[%d]", nm, i); | |
565 | ||
566 | object_property_add_alias(OBJECT(container), propname, | |
567 | OBJECT(dev), propname, | |
568 | &error_abort); | |
6bc5cf92 | 569 | g_free(propname); |
17a96a14 PC |
570 | } |
571 | QLIST_REMOVE(ngl, node); | |
572 | QLIST_INSERT_HEAD(&container->gpios, ngl, node); | |
573 | } | |
574 | ||
02e2da45 | 575 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
4d6ae674 | 576 | { |
02e2da45 | 577 | BusState *bus; |
f698c8ba PC |
578 | Object *child = object_resolve_path_component(OBJECT(dev), name); |
579 | ||
580 | bus = (BusState *)object_dynamic_cast(child, TYPE_BUS); | |
581 | if (bus) { | |
582 | return bus; | |
583 | } | |
4d6ae674 | 584 | |
72cf2d4f | 585 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
4d6ae674 | 586 | if (strcmp(name, bus->name) == 0) { |
02e2da45 | 587 | return bus; |
4d6ae674 PB |
588 | } |
589 | } | |
590 | return NULL; | |
591 | } | |
592 | ||
0293214b PB |
593 | int qdev_walk_children(DeviceState *dev, |
594 | qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn, | |
595 | qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn, | |
596 | void *opaque) | |
81699d8a AL |
597 | { |
598 | BusState *bus; | |
599 | int err; | |
600 | ||
0293214b PB |
601 | if (pre_devfn) { |
602 | err = pre_devfn(dev, opaque); | |
81699d8a AL |
603 | if (err) { |
604 | return err; | |
605 | } | |
606 | } | |
607 | ||
608 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
0293214b PB |
609 | err = qbus_walk_children(bus, pre_devfn, pre_busfn, |
610 | post_devfn, post_busfn, opaque); | |
81699d8a AL |
611 | if (err < 0) { |
612 | return err; | |
613 | } | |
614 | } | |
615 | ||
0293214b PB |
616 | if (post_devfn) { |
617 | err = post_devfn(dev, opaque); | |
618 | if (err) { | |
619 | return err; | |
620 | } | |
621 | } | |
622 | ||
81699d8a AL |
623 | return 0; |
624 | } | |
625 | ||
a2ee6b4f | 626 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
3418bd25 | 627 | { |
0866aca1 AL |
628 | BusChild *kid; |
629 | DeviceState *ret; | |
3418bd25 GH |
630 | BusState *child; |
631 | ||
0866aca1 AL |
632 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
633 | DeviceState *dev = kid->child; | |
634 | ||
635 | if (dev->id && strcmp(dev->id, id) == 0) { | |
3418bd25 | 636 | return dev; |
0866aca1 AL |
637 | } |
638 | ||
3418bd25 GH |
639 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
640 | ret = qdev_find_recursive(child, id); | |
641 | if (ret) { | |
642 | return ret; | |
643 | } | |
644 | } | |
645 | } | |
646 | return NULL; | |
647 | } | |
648 | ||
09e5ab63 | 649 | char *qdev_get_dev_path(DeviceState *dev) |
85ed303b | 650 | { |
0d936928 | 651 | BusClass *bc; |
09e5ab63 AL |
652 | |
653 | if (!dev || !dev->parent_bus) { | |
654 | return NULL; | |
655 | } | |
656 | ||
0d936928 AL |
657 | bc = BUS_GET_CLASS(dev->parent_bus); |
658 | if (bc->get_dev_path) { | |
659 | return bc->get_dev_path(dev); | |
09e5ab63 AL |
660 | } |
661 | ||
662 | return NULL; | |
44677ded | 663 | } |
a5296ca9 AL |
664 | |
665 | /** | |
666 | * Legacy property handling | |
667 | */ | |
668 | ||
d7bce999 EB |
669 | static void qdev_get_legacy_property(Object *obj, Visitor *v, |
670 | const char *name, void *opaque, | |
671 | Error **errp) | |
a5296ca9 | 672 | { |
57c9fafe | 673 | DeviceState *dev = DEVICE(obj); |
a5296ca9 AL |
674 | Property *prop = opaque; |
675 | ||
e3cb6ba6 PB |
676 | char buffer[1024]; |
677 | char *ptr = buffer; | |
a5296ca9 | 678 | |
e3cb6ba6 | 679 | prop->info->print(dev, prop, buffer, sizeof(buffer)); |
51e72bc1 | 680 | visit_type_str(v, name, &ptr, errp); |
a5296ca9 AL |
681 | } |
682 | ||
a5296ca9 | 683 | /** |
d9d8d452 C |
684 | * qdev_property_add_legacy: |
685 | * @dev: Device to add the property to. | |
686 | * @prop: The qdev property definition. | |
687 | * @errp: location to store error information. | |
688 | * | |
689 | * Add a legacy QOM property to @dev for qdev property @prop. | |
690 | * On error, store error in @errp. | |
a5296ca9 | 691 | * |
d9d8d452 C |
692 | * Legacy properties are string versions of QOM properties. The format of |
693 | * the string depends on the property type. Legacy properties are only | |
694 | * needed for "info qtree". | |
a5296ca9 | 695 | * |
6871a0d0 | 696 | * Do not use this in new code! QOM Properties added through this interface |
d9d8d452 | 697 | * will be given names in the "legacy" namespace. |
a5296ca9 | 698 | */ |
f5a014d2 SW |
699 | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
700 | Error **errp) | |
a5296ca9 | 701 | { |
7ce7ffe0 | 702 | gchar *name; |
a5296ca9 | 703 | |
f3be016d | 704 | /* Register pointer properties as legacy properties */ |
03ff7770 | 705 | if (!prop->info->print && prop->info->get) { |
68ee3569 PB |
706 | return; |
707 | } | |
f3be016d | 708 | |
faabdbb7 FZ |
709 | if (prop->info->create) { |
710 | return; | |
711 | } | |
712 | ||
ca2cc788 | 713 | name = g_strdup_printf("legacy-%s", prop->name); |
7ce7ffe0 | 714 | object_property_add(OBJECT(dev), name, "str", |
68ee3569 | 715 | prop->info->print ? qdev_get_legacy_property : prop->info->get, |
03ff7770 | 716 | NULL, |
57c9fafe AL |
717 | NULL, |
718 | prop, errp); | |
a5296ca9 | 719 | |
ca2cc788 PB |
720 | g_free(name); |
721 | } | |
722 | ||
723 | /** | |
d9d8d452 C |
724 | * qdev_property_add_static: |
725 | * @dev: Device to add the property to. | |
726 | * @prop: The qdev property definition. | |
727 | * @errp: location to store error information. | |
ca2cc788 | 728 | * |
d9d8d452 C |
729 | * Add a static QOM property to @dev for qdev property @prop. |
730 | * On error, store error in @errp. Static properties access data in a struct. | |
731 | * The type of the QOM property is derived from prop->info. | |
ca2cc788 PB |
732 | */ |
733 | void qdev_property_add_static(DeviceState *dev, Property *prop, | |
734 | Error **errp) | |
735 | { | |
fdae245f PB |
736 | Error *local_err = NULL; |
737 | Object *obj = OBJECT(dev); | |
738 | ||
faabdbb7 FZ |
739 | if (prop->info->create) { |
740 | prop->info->create(obj, prop, &local_err); | |
741 | } else { | |
742 | /* | |
743 | * TODO qdev_prop_ptr does not have getters or setters. It must | |
744 | * go now that it can be replaced with links. The test should be | |
745 | * removed along with it: all static properties are read/write. | |
746 | */ | |
747 | if (!prop->info->get && !prop->info->set) { | |
748 | return; | |
749 | } | |
750 | object_property_add(obj, prop->name, prop->info->name, | |
751 | prop->info->get, prop->info->set, | |
752 | prop->info->release, | |
753 | prop, &local_err); | |
d822979b PB |
754 | } |
755 | ||
fdae245f PB |
756 | if (local_err) { |
757 | error_propagate(errp, local_err); | |
758 | return; | |
759 | } | |
b8c9cd5c GA |
760 | |
761 | object_property_set_description(obj, prop->name, | |
762 | prop->info->description, | |
763 | &error_abort); | |
764 | ||
5cc56cc6 | 765 | if (prop->set_default) { |
a2740ad5 | 766 | prop->info->set_default_value(obj, prop); |
fdae245f | 767 | } |
6a146eba | 768 | } |
1de81d28 | 769 | |
67cc7e0a SH |
770 | /* @qdev_alias_all_properties - Add alias properties to the source object for |
771 | * all qdev properties on the target DeviceState. | |
772 | */ | |
773 | void qdev_alias_all_properties(DeviceState *target, Object *source) | |
774 | { | |
775 | ObjectClass *class; | |
776 | Property *prop; | |
777 | ||
778 | class = object_get_class(OBJECT(target)); | |
779 | do { | |
780 | DeviceClass *dc = DEVICE_CLASS(class); | |
781 | ||
782 | for (prop = dc->props; prop && prop->name; prop++) { | |
783 | object_property_add_alias(source, prop->name, | |
784 | OBJECT(target), prop->name, | |
785 | &error_abort); | |
786 | } | |
787 | class = object_class_get_parent(class); | |
788 | } while (class != object_class_by_name(TYPE_DEVICE)); | |
789 | } | |
790 | ||
4cae4d5a | 791 | static int qdev_add_hotpluggable_device(Object *obj, void *opaque) |
66e56b13 ZG |
792 | { |
793 | GSList **list = opaque; | |
09d56017 JL |
794 | DeviceState *dev = (DeviceState *)object_dynamic_cast(OBJECT(obj), |
795 | TYPE_DEVICE); | |
796 | ||
797 | if (dev == NULL) { | |
798 | return 0; | |
799 | } | |
66e56b13 ZG |
800 | |
801 | if (dev->realized && object_property_get_bool(obj, "hotpluggable", NULL)) { | |
802 | *list = g_slist_append(*list, dev); | |
803 | } | |
804 | ||
66e56b13 ZG |
805 | return 0; |
806 | } | |
807 | ||
4cae4d5a MA |
808 | GSList *qdev_build_hotpluggable_device_list(Object *peripheral) |
809 | { | |
810 | GSList *list = NULL; | |
811 | ||
812 | object_child_foreach(peripheral, qdev_add_hotpluggable_device, &list); | |
813 | ||
814 | return list; | |
815 | } | |
816 | ||
a7737e44 | 817 | static bool device_get_realized(Object *obj, Error **errp) |
249d4172 AF |
818 | { |
819 | DeviceState *dev = DEVICE(obj); | |
820 | return dev->realized; | |
821 | } | |
822 | ||
1bfe5f05 JQ |
823 | static bool check_only_migratable(Object *obj, Error **err) |
824 | { | |
825 | DeviceClass *dc = DEVICE_GET_CLASS(obj); | |
826 | ||
827 | if (!vmstate_check_only_migratable(dc->vmsd)) { | |
828 | error_setg(err, "Device %s is not migratable, but " | |
829 | "--only-migratable was specified", | |
830 | object_get_typename(obj)); | |
831 | return false; | |
832 | } | |
833 | ||
834 | return true; | |
835 | } | |
836 | ||
a7737e44 | 837 | static void device_set_realized(Object *obj, bool value, Error **errp) |
249d4172 AF |
838 | { |
839 | DeviceState *dev = DEVICE(obj); | |
840 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
7716b8ca | 841 | HotplugHandler *hotplug_ctrl; |
5c21ce77 | 842 | BusState *bus; |
249d4172 | 843 | Error *local_err = NULL; |
69382d8b IM |
844 | bool unattached_parent = false; |
845 | static int unattached_count; | |
249d4172 | 846 | |
1a37eca1 | 847 | if (dev->hotplugged && !dc->hotpluggable) { |
c6bd8c70 | 848 | error_setg(errp, QERR_DEVICE_NO_HOTPLUG, object_get_typename(obj)); |
1a37eca1 IM |
849 | return; |
850 | } | |
851 | ||
249d4172 | 852 | if (value && !dev->realized) { |
1bfe5f05 | 853 | if (!check_only_migratable(obj, &local_err)) { |
7562f907 AA |
854 | goto fail; |
855 | } | |
856 | ||
d578029e | 857 | if (!obj->parent) { |
249d4172 AF |
858 | gchar *name = g_strdup_printf("device[%d]", unattached_count++); |
859 | ||
860 | object_property_add_child(container_get(qdev_get_machine(), | |
861 | "/unattached"), | |
d578029e | 862 | name, obj, &error_abort); |
69382d8b | 863 | unattached_parent = true; |
249d4172 AF |
864 | g_free(name); |
865 | } | |
866 | ||
41346263 IM |
867 | hotplug_ctrl = qdev_get_hotplug_handler(dev); |
868 | if (hotplug_ctrl) { | |
869 | hotplug_handler_pre_plug(hotplug_ctrl, dev, &local_err); | |
870 | if (local_err != NULL) { | |
871 | goto fail; | |
872 | } | |
873 | } | |
874 | ||
a7ddba52 IM |
875 | if (dc->realize) { |
876 | dc->realize(dev, &local_err); | |
877 | } | |
878 | ||
1d45a705 GA |
879 | if (local_err != NULL) { |
880 | goto fail; | |
881 | } | |
882 | ||
707ff800 PD |
883 | DEVICE_LISTENER_CALL(realize, Forward, dev); |
884 | ||
04162f8f MR |
885 | /* |
886 | * always free/re-initialize here since the value cannot be cleaned up | |
887 | * in device_unrealize due to its usage later on in the unplug path | |
888 | */ | |
889 | g_free(dev->canonical_path); | |
890 | dev->canonical_path = object_get_canonical_path(OBJECT(dev)); | |
891 | ||
1d45a705 | 892 | if (qdev_get_vmsd(dev)) { |
67980031 DDAG |
893 | if (vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev, |
894 | dev->instance_id_alias, | |
895 | dev->alias_required_for_version, | |
896 | &local_err) < 0) { | |
897 | goto post_realize_fail; | |
898 | } | |
249d4172 | 899 | } |
1d45a705 GA |
900 | |
901 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
902 | object_property_set_bool(OBJECT(bus), true, "realized", | |
5c21ce77 | 903 | &local_err); |
1d45a705 GA |
904 | if (local_err != NULL) { |
905 | goto child_realize_fail; | |
5c21ce77 BD |
906 | } |
907 | } | |
1d45a705 | 908 | if (dev->hotplugged) { |
249d4172 AF |
909 | device_reset(dev); |
910 | } | |
352e8da7 | 911 | dev->pending_deleted_event = false; |
25e89788 SH |
912 | |
913 | if (hotplug_ctrl) { | |
8b5e6caf IM |
914 | hotplug_handler_plug(hotplug_ctrl, dev, &local_err); |
915 | if (local_err != NULL) { | |
916 | goto child_realize_fail; | |
917 | } | |
918 | } | |
919 | ||
249d4172 | 920 | } else if (!value && dev->realized) { |
cd4520ad | 921 | Error **local_errp = NULL; |
5c21ce77 | 922 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
cd4520ad | 923 | local_errp = local_err ? NULL : &local_err; |
5c21ce77 | 924 | object_property_set_bool(OBJECT(bus), false, "realized", |
cd4520ad | 925 | local_errp); |
5c21ce77 | 926 | } |
cd4520ad | 927 | if (qdev_get_vmsd(dev)) { |
fe6c2117 AF |
928 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); |
929 | } | |
cd4520ad GA |
930 | if (dc->unrealize) { |
931 | local_errp = local_err ? NULL : &local_err; | |
932 | dc->unrealize(dev, local_errp); | |
249d4172 | 933 | } |
352e8da7 | 934 | dev->pending_deleted_event = true; |
707ff800 | 935 | DEVICE_LISTENER_CALL(unrealize, Reverse, dev); |
c7f8d0f3 | 936 | } |
249d4172 | 937 | |
c7f8d0f3 XG |
938 | if (local_err != NULL) { |
939 | goto fail; | |
249d4172 AF |
940 | } |
941 | ||
c7f8d0f3 | 942 | dev->realized = value; |
1d45a705 GA |
943 | return; |
944 | ||
945 | child_realize_fail: | |
946 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
947 | object_property_set_bool(OBJECT(bus), false, "realized", | |
948 | NULL); | |
949 | } | |
950 | ||
951 | if (qdev_get_vmsd(dev)) { | |
952 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); | |
953 | } | |
954 | ||
955 | post_realize_fail: | |
04162f8f MR |
956 | g_free(dev->canonical_path); |
957 | dev->canonical_path = NULL; | |
1d45a705 GA |
958 | if (dc->unrealize) { |
959 | dc->unrealize(dev, NULL); | |
960 | } | |
961 | ||
962 | fail: | |
963 | error_propagate(errp, local_err); | |
69382d8b IM |
964 | if (unattached_parent) { |
965 | object_unparent(OBJECT(dev)); | |
966 | unattached_count--; | |
967 | } | |
249d4172 AF |
968 | } |
969 | ||
a7737e44 | 970 | static bool device_get_hotpluggable(Object *obj, Error **errp) |
1a37eca1 IM |
971 | { |
972 | DeviceClass *dc = DEVICE_GET_CLASS(obj); | |
973 | DeviceState *dev = DEVICE(obj); | |
974 | ||
2b81b35f | 975 | return dc->hotpluggable && (dev->parent_bus == NULL || |
39b888bd | 976 | qbus_is_hotpluggable(dev->parent_bus)); |
1a37eca1 IM |
977 | } |
978 | ||
d012ffc1 IM |
979 | static bool device_get_hotplugged(Object *obj, Error **err) |
980 | { | |
981 | DeviceState *dev = DEVICE(obj); | |
982 | ||
983 | return dev->hotplugged; | |
984 | } | |
985 | ||
9674bfe4 AL |
986 | static void device_initfn(Object *obj) |
987 | { | |
988 | DeviceState *dev = DEVICE(obj); | |
bce54474 | 989 | ObjectClass *class; |
9674bfe4 AL |
990 | Property *prop; |
991 | ||
992 | if (qdev_hotplug) { | |
993 | dev->hotplugged = 1; | |
994 | qdev_hot_added = true; | |
995 | } | |
996 | ||
997 | dev->instance_id_alias = -1; | |
7983c8a3 | 998 | dev->realized = false; |
a1190ab6 | 999 | dev->allow_unplug_during_migration = false; |
9674bfe4 | 1000 | |
249d4172 AF |
1001 | object_property_add_bool(obj, "realized", |
1002 | device_get_realized, device_set_realized, NULL); | |
1a37eca1 IM |
1003 | object_property_add_bool(obj, "hotpluggable", |
1004 | device_get_hotpluggable, NULL, NULL); | |
d012ffc1 | 1005 | object_property_add_bool(obj, "hotplugged", |
36cccb8c | 1006 | device_get_hotplugged, NULL, |
d012ffc1 | 1007 | &error_abort); |
249d4172 | 1008 | |
bce54474 PB |
1009 | class = object_get_class(OBJECT(dev)); |
1010 | do { | |
1011 | for (prop = DEVICE_CLASS(class)->props; prop && prop->name; prop++) { | |
5433a0a8 PC |
1012 | qdev_property_add_legacy(dev, prop, &error_abort); |
1013 | qdev_property_add_static(dev, prop, &error_abort); | |
bce54474 | 1014 | } |
bce54474 PB |
1015 | class = object_class_get_parent(class); |
1016 | } while (class != object_class_by_name(TYPE_DEVICE)); | |
9674bfe4 | 1017 | |
f968fc68 | 1018 | object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS, |
39f72ef9 | 1019 | (Object **)&dev->parent_bus, NULL, 0, |
9561fda8 | 1020 | &error_abort); |
a5f54290 | 1021 | QLIST_INIT(&dev->gpios); |
9674bfe4 AL |
1022 | } |
1023 | ||
1c3994f6 MAL |
1024 | static void device_post_init(Object *obj) |
1025 | { | |
1a3ec8c1 MA |
1026 | /* |
1027 | * Note: ordered so that the user's global properties take | |
1028 | * precedence. | |
1029 | */ | |
1c3994f6 | 1030 | object_apply_compat_props(obj); |
25f8dd96 | 1031 | qdev_prop_set_globals(DEVICE(obj)); |
99a0b036 EH |
1032 | } |
1033 | ||
60adba37 AL |
1034 | /* Unlink device from bus and free the structure. */ |
1035 | static void device_finalize(Object *obj) | |
1036 | { | |
a5f54290 PC |
1037 | NamedGPIOList *ngl, *next; |
1038 | ||
60adba37 | 1039 | DeviceState *dev = DEVICE(obj); |
a5f54290 PC |
1040 | |
1041 | QLIST_FOREACH_SAFE(ngl, &dev->gpios, node, next) { | |
1042 | QLIST_REMOVE(ngl, node); | |
f173d57a | 1043 | qemu_free_irqs(ngl->in, ngl->num_in); |
a5f54290 PC |
1044 | g_free(ngl->name); |
1045 | g_free(ngl); | |
1046 | /* ngl->out irqs are owned by the other end and should not be freed | |
1047 | * here | |
1048 | */ | |
1049 | } | |
f7b879e0 MR |
1050 | |
1051 | /* Only send event if the device had been completely realized */ | |
1052 | if (dev->pending_deleted_event) { | |
1053 | g_assert(dev->canonical_path); | |
1054 | ||
3ab72385 | 1055 | qapi_event_send_device_deleted(!!dev->id, dev->id, dev->canonical_path); |
f7b879e0 MR |
1056 | g_free(dev->canonical_path); |
1057 | dev->canonical_path = NULL; | |
1058 | } | |
1059 | ||
1060 | qemu_opts_del(dev->opts); | |
60adba37 AL |
1061 | } |
1062 | ||
bce54474 PB |
1063 | static void device_class_base_init(ObjectClass *class, void *data) |
1064 | { | |
1065 | DeviceClass *klass = DEVICE_CLASS(class); | |
1066 | ||
1067 | /* We explicitly look up properties in the superclasses, | |
1068 | * so do not propagate them to the subclasses. | |
1069 | */ | |
1070 | klass->props = NULL; | |
60adba37 AL |
1071 | } |
1072 | ||
5d5b24d0 | 1073 | static void device_unparent(Object *obj) |
667d22d1 PB |
1074 | { |
1075 | DeviceState *dev = DEVICE(obj); | |
06f7f2bb | 1076 | BusState *bus; |
667d22d1 | 1077 | |
5c21ce77 BD |
1078 | if (dev->realized) { |
1079 | object_property_set_bool(obj, false, "realized", NULL); | |
1080 | } | |
06f7f2bb PB |
1081 | while (dev->num_child_bus) { |
1082 | bus = QLIST_FIRST(&dev->child_bus); | |
6780a22c | 1083 | object_unparent(OBJECT(bus)); |
06f7f2bb | 1084 | } |
06f7f2bb | 1085 | if (dev->parent_bus) { |
5d5b24d0 | 1086 | bus_remove_child(dev->parent_bus, dev); |
62d7ba66 PB |
1087 | object_unref(OBJECT(dev->parent_bus)); |
1088 | dev->parent_bus = NULL; | |
5d5b24d0 | 1089 | } |
667d22d1 PB |
1090 | } |
1091 | ||
1092 | static void device_class_init(ObjectClass *class, void *data) | |
1093 | { | |
249d4172 AF |
1094 | DeviceClass *dc = DEVICE_CLASS(class); |
1095 | ||
5d5b24d0 | 1096 | class->unparent = device_unparent; |
267a3264 IM |
1097 | |
1098 | /* by default all devices were considered as hotpluggable, | |
1099 | * so with intent to check it in generic qdev_unplug() / | |
1100 | * device_set_realized() functions make every device | |
1101 | * hotpluggable. Devices that shouldn't be hotpluggable, | |
1102 | * should override it in their class_init() | |
1103 | */ | |
1104 | dc->hotpluggable = true; | |
e90f2a8c | 1105 | dc->user_creatable = true; |
667d22d1 PB |
1106 | } |
1107 | ||
46795cf2 PMD |
1108 | void device_class_set_parent_reset(DeviceClass *dc, |
1109 | DeviceReset dev_reset, | |
1110 | DeviceReset *parent_reset) | |
1111 | { | |
1112 | *parent_reset = dc->reset; | |
1113 | dc->reset = dev_reset; | |
1114 | } | |
1115 | ||
1116 | void device_class_set_parent_realize(DeviceClass *dc, | |
1117 | DeviceRealize dev_realize, | |
1118 | DeviceRealize *parent_realize) | |
1119 | { | |
1120 | *parent_realize = dc->realize; | |
1121 | dc->realize = dev_realize; | |
1122 | } | |
1123 | ||
1124 | void device_class_set_parent_unrealize(DeviceClass *dc, | |
1125 | DeviceUnrealize dev_unrealize, | |
1126 | DeviceUnrealize *parent_unrealize) | |
1127 | { | |
1128 | *parent_unrealize = dc->unrealize; | |
1129 | dc->unrealize = dev_unrealize; | |
1130 | } | |
1131 | ||
94afdadc AL |
1132 | void device_reset(DeviceState *dev) |
1133 | { | |
1134 | DeviceClass *klass = DEVICE_GET_CLASS(dev); | |
1135 | ||
1136 | if (klass->reset) { | |
1137 | klass->reset(dev); | |
1138 | } | |
1139 | } | |
1140 | ||
f05f6b4a PB |
1141 | Object *qdev_get_machine(void) |
1142 | { | |
1143 | static Object *dev; | |
1144 | ||
1145 | if (dev == NULL) { | |
dfe47e70 | 1146 | dev = container_get(object_get_root(), "/machine"); |
f05f6b4a PB |
1147 | } |
1148 | ||
1149 | return dev; | |
1150 | } | |
1151 | ||
8c43a6f0 | 1152 | static const TypeInfo device_type_info = { |
32fea402 AL |
1153 | .name = TYPE_DEVICE, |
1154 | .parent = TYPE_OBJECT, | |
1155 | .instance_size = sizeof(DeviceState), | |
9674bfe4 | 1156 | .instance_init = device_initfn, |
99a0b036 | 1157 | .instance_post_init = device_post_init, |
60adba37 | 1158 | .instance_finalize = device_finalize, |
bce54474 | 1159 | .class_base_init = device_class_base_init, |
667d22d1 | 1160 | .class_init = device_class_init, |
32fea402 AL |
1161 | .abstract = true, |
1162 | .class_size = sizeof(DeviceClass), | |
1163 | }; | |
1164 | ||
83f7d43a | 1165 | static void qdev_register_types(void) |
32fea402 AL |
1166 | { |
1167 | type_register_static(&device_type_info); | |
1168 | } | |
1169 | ||
83f7d43a | 1170 | type_init(qdev_register_types) |