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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 | ||
18c86e2b | 28 | #include "qemu/osdep.h" |
83c9f4ca | 29 | #include "hw/qdev.h" |
9c17d615 | 30 | #include "sysemu/sysemu.h" |
e688df6b | 31 | #include "qapi/error.h" |
b4a42f81 | 32 | #include "qapi/qmp/qerror.h" |
7b1b5d19 | 33 | #include "qapi/visitor.h" |
d49b6836 | 34 | #include "qemu/error-report.h" |
922a01a0 | 35 | #include "qemu/option.h" |
0ee4de6c | 36 | #include "hw/hotplug.h" |
b7454548 | 37 | #include "hw/boards.h" |
7474f1be | 38 | #include "hw/sysbus.h" |
24b699fb | 39 | #include "qapi-event.h" |
aae9460e | 40 | |
9bed84c1 | 41 | bool qdev_hotplug = false; |
0ac8ef71 | 42 | static bool qdev_hot_added = false; |
21def24a | 43 | bool qdev_hot_removed = false; |
3418bd25 | 44 | |
4be9f0d1 AL |
45 | const VMStateDescription *qdev_get_vmsd(DeviceState *dev) |
46 | { | |
6e008585 AL |
47 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
48 | return dc->vmsd; | |
4be9f0d1 AL |
49 | } |
50 | ||
0866aca1 | 51 | static void bus_remove_child(BusState *bus, DeviceState *child) |
0c17542d | 52 | { |
0866aca1 AL |
53 | BusChild *kid; |
54 | ||
55 | QTAILQ_FOREACH(kid, &bus->children, sibling) { | |
56 | if (kid->child == child) { | |
57 | char name[32]; | |
58 | ||
59 | snprintf(name, sizeof(name), "child[%d]", kid->index); | |
60 | QTAILQ_REMOVE(&bus->children, kid, sibling); | |
9d127820 PB |
61 | |
62 | /* This gives back ownership of kid->child back to us. */ | |
0866aca1 | 63 | object_property_del(OBJECT(bus), name, NULL); |
9d127820 | 64 | object_unref(OBJECT(kid->child)); |
0866aca1 AL |
65 | g_free(kid); |
66 | return; | |
67 | } | |
68 | } | |
69 | } | |
70 | ||
71 | static void bus_add_child(BusState *bus, DeviceState *child) | |
72 | { | |
73 | char name[32]; | |
74 | BusChild *kid = g_malloc0(sizeof(*kid)); | |
0c17542d | 75 | |
0866aca1 AL |
76 | kid->index = bus->max_index++; |
77 | kid->child = child; | |
9d127820 | 78 | object_ref(OBJECT(kid->child)); |
a5296ca9 | 79 | |
0866aca1 AL |
80 | QTAILQ_INSERT_HEAD(&bus->children, kid, sibling); |
81 | ||
9d127820 | 82 | /* This transfers ownership of kid->child to the property. */ |
0866aca1 AL |
83 | snprintf(name, sizeof(name), "child[%d]", kid->index); |
84 | object_property_add_link(OBJECT(bus), name, | |
85 | object_get_typename(OBJECT(child)), | |
39f72ef9 SH |
86 | (Object **)&kid->child, |
87 | NULL, /* read-only property */ | |
88 | 0, /* return ownership on prop deletion */ | |
89 | NULL); | |
0866aca1 AL |
90 | } |
91 | ||
92 | void qdev_set_parent_bus(DeviceState *dev, BusState *bus) | |
93 | { | |
91c968ac PM |
94 | bool replugging = dev->parent_bus != NULL; |
95 | ||
96 | if (replugging) { | |
97 | /* Keep a reference to the device while it's not plugged into | |
98 | * any bus, to avoid it potentially evaporating when it is | |
99 | * dereffed in bus_remove_child(). | |
100 | */ | |
101 | object_ref(OBJECT(dev)); | |
102 | bus_remove_child(dev->parent_bus, dev); | |
103 | object_unref(OBJECT(dev->parent_bus)); | |
104 | } | |
9fbe6127 | 105 | dev->parent_bus = bus; |
62d7ba66 | 106 | object_ref(OBJECT(bus)); |
0866aca1 | 107 | bus_add_child(bus, dev); |
91c968ac PM |
108 | if (replugging) { |
109 | object_unref(OBJECT(dev)); | |
110 | } | |
0c17542d MA |
111 | } |
112 | ||
0210afe6 MA |
113 | /* Create a new device. This only initializes the device state |
114 | structure and allows properties to be set. The device still needs | |
115 | to be realized. See qdev-core.h. */ | |
02e2da45 | 116 | DeviceState *qdev_create(BusState *bus, const char *name) |
0bcdeda7 BS |
117 | { |
118 | DeviceState *dev; | |
119 | ||
120 | dev = qdev_try_create(bus, name); | |
121 | if (!dev) { | |
e92714c7 | 122 | if (bus) { |
312fd5f2 | 123 | error_report("Unknown device '%s' for bus '%s'", name, |
23e3fbec | 124 | object_get_typename(OBJECT(bus))); |
e92714c7 | 125 | } else { |
312fd5f2 | 126 | error_report("Unknown device '%s' for default sysbus", name); |
e92714c7 | 127 | } |
01ed1d52 | 128 | abort(); |
0bcdeda7 BS |
129 | } |
130 | ||
131 | return dev; | |
132 | } | |
133 | ||
da57febf | 134 | DeviceState *qdev_try_create(BusState *bus, const char *type) |
aae9460e | 135 | { |
9fbe6127 AL |
136 | DeviceState *dev; |
137 | ||
da57febf | 138 | if (object_class_by_name(type) == NULL) { |
4ed658ca AF |
139 | return NULL; |
140 | } | |
da57febf | 141 | dev = DEVICE(object_new(type)); |
9fbe6127 AL |
142 | if (!dev) { |
143 | return NULL; | |
144 | } | |
145 | ||
10c4c98a | 146 | if (!bus) { |
7474f1be PM |
147 | /* Assert that the device really is a SysBusDevice before |
148 | * we put it onto the sysbus. Non-sysbus devices which aren't | |
149 | * being put onto a bus should be created with object_new(TYPE_FOO), | |
150 | * not qdev_create(NULL, TYPE_FOO). | |
151 | */ | |
152 | g_assert(object_dynamic_cast(OBJECT(dev), TYPE_SYS_BUS_DEVICE)); | |
68694897 | 153 | bus = sysbus_get_default(); |
10c4c98a GH |
154 | } |
155 | ||
9fbe6127 | 156 | qdev_set_parent_bus(dev, bus); |
b09995ae | 157 | object_unref(OBJECT(dev)); |
9fbe6127 | 158 | return dev; |
aae9460e PB |
159 | } |
160 | ||
707ff800 PD |
161 | static QTAILQ_HEAD(device_listeners, DeviceListener) device_listeners |
162 | = QTAILQ_HEAD_INITIALIZER(device_listeners); | |
163 | ||
164 | enum ListenerDirection { Forward, Reverse }; | |
165 | ||
166 | #define DEVICE_LISTENER_CALL(_callback, _direction, _args...) \ | |
167 | do { \ | |
168 | DeviceListener *_listener; \ | |
169 | \ | |
170 | switch (_direction) { \ | |
171 | case Forward: \ | |
172 | QTAILQ_FOREACH(_listener, &device_listeners, link) { \ | |
173 | if (_listener->_callback) { \ | |
174 | _listener->_callback(_listener, ##_args); \ | |
175 | } \ | |
176 | } \ | |
177 | break; \ | |
178 | case Reverse: \ | |
179 | QTAILQ_FOREACH_REVERSE(_listener, &device_listeners, \ | |
180 | device_listeners, link) { \ | |
181 | if (_listener->_callback) { \ | |
182 | _listener->_callback(_listener, ##_args); \ | |
183 | } \ | |
184 | } \ | |
185 | break; \ | |
186 | default: \ | |
187 | abort(); \ | |
188 | } \ | |
189 | } while (0) | |
190 | ||
191 | static int device_listener_add(DeviceState *dev, void *opaque) | |
192 | { | |
193 | DEVICE_LISTENER_CALL(realize, Forward, dev); | |
194 | ||
195 | return 0; | |
196 | } | |
197 | ||
198 | void device_listener_register(DeviceListener *listener) | |
199 | { | |
200 | QTAILQ_INSERT_TAIL(&device_listeners, listener, link); | |
201 | ||
202 | qbus_walk_children(sysbus_get_default(), NULL, NULL, device_listener_add, | |
203 | NULL, NULL); | |
204 | } | |
205 | ||
206 | void device_listener_unregister(DeviceListener *listener) | |
207 | { | |
208 | QTAILQ_REMOVE(&device_listeners, listener, link); | |
209 | } | |
210 | ||
a7737e44 | 211 | static void device_realize(DeviceState *dev, Error **errp) |
249d4172 AF |
212 | { |
213 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
da57febf | 214 | |
249d4172 AF |
215 | if (dc->init) { |
216 | int rc = dc->init(dev); | |
217 | if (rc < 0) { | |
a7737e44 | 218 | error_setg(errp, "Device initialization failed."); |
249d4172 AF |
219 | return; |
220 | } | |
5ab28c83 | 221 | } |
02e2da45 PB |
222 | } |
223 | ||
fe6c2117 AF |
224 | static void device_unrealize(DeviceState *dev, Error **errp) |
225 | { | |
226 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
227 | ||
228 | if (dc->exit) { | |
229 | int rc = dc->exit(dev); | |
230 | if (rc < 0) { | |
231 | error_setg(errp, "Device exit failed."); | |
232 | return; | |
233 | } | |
234 | } | |
235 | } | |
236 | ||
4d2ffa08 JK |
237 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
238 | int required_for_version) | |
239 | { | |
7983c8a3 | 240 | assert(!dev->realized); |
4d2ffa08 JK |
241 | dev->instance_id_alias = alias_id; |
242 | dev->alias_required_for_version = required_for_version; | |
243 | } | |
244 | ||
03fcbd9d TH |
245 | HotplugHandler *qdev_get_machine_hotplug_handler(DeviceState *dev) |
246 | { | |
247 | MachineState *machine; | |
248 | MachineClass *mc; | |
249 | Object *m_obj = qdev_get_machine(); | |
250 | ||
251 | if (object_dynamic_cast(m_obj, TYPE_MACHINE)) { | |
252 | machine = MACHINE(m_obj); | |
253 | mc = MACHINE_GET_CLASS(machine); | |
254 | if (mc->get_hotplug_handler) { | |
255 | return mc->get_hotplug_handler(machine, dev); | |
256 | } | |
257 | } | |
258 | ||
259 | return NULL; | |
260 | } | |
261 | ||
c06b2ffb | 262 | HotplugHandler *qdev_get_hotplug_handler(DeviceState *dev) |
7716b8ca | 263 | { |
03fcbd9d | 264 | HotplugHandler *hotplug_ctrl; |
7716b8ca IM |
265 | |
266 | if (dev->parent_bus && dev->parent_bus->hotplug_handler) { | |
267 | hotplug_ctrl = dev->parent_bus->hotplug_handler; | |
03fcbd9d TH |
268 | } else { |
269 | hotplug_ctrl = qdev_get_machine_hotplug_handler(dev); | |
7716b8ca IM |
270 | } |
271 | return hotplug_ctrl; | |
272 | } | |
273 | ||
ec990eb6 AL |
274 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
275 | { | |
94afdadc | 276 | device_reset(dev); |
ec990eb6 AL |
277 | |
278 | return 0; | |
279 | } | |
280 | ||
b4694b7c IY |
281 | static int qbus_reset_one(BusState *bus, void *opaque) |
282 | { | |
0d936928 AL |
283 | BusClass *bc = BUS_GET_CLASS(bus); |
284 | if (bc->reset) { | |
dcc20931 | 285 | bc->reset(bus); |
b4694b7c IY |
286 | } |
287 | return 0; | |
288 | } | |
289 | ||
5af0a04b IY |
290 | void qdev_reset_all(DeviceState *dev) |
291 | { | |
dcc20931 | 292 | qdev_walk_children(dev, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL); |
5af0a04b IY |
293 | } |
294 | ||
ff8de075 DH |
295 | void qdev_reset_all_fn(void *opaque) |
296 | { | |
297 | qdev_reset_all(DEVICE(opaque)); | |
298 | } | |
299 | ||
d0508c36 PB |
300 | void qbus_reset_all(BusState *bus) |
301 | { | |
dcc20931 | 302 | qbus_walk_children(bus, NULL, NULL, qdev_reset_one, qbus_reset_one, NULL); |
d0508c36 PB |
303 | } |
304 | ||
80376c3f IY |
305 | void qbus_reset_all_fn(void *opaque) |
306 | { | |
307 | BusState *bus = opaque; | |
d0508c36 | 308 | qbus_reset_all(bus); |
80376c3f IY |
309 | } |
310 | ||
3418bd25 | 311 | /* can be used as ->unplug() callback for the simple cases */ |
014176f9 IM |
312 | void qdev_simple_device_unplug_cb(HotplugHandler *hotplug_dev, |
313 | DeviceState *dev, Error **errp) | |
314 | { | |
2d9a982f IM |
315 | /* just zap it */ |
316 | object_unparent(OBJECT(dev)); | |
014176f9 | 317 | } |
3b29a101 | 318 | |
0210afe6 MA |
319 | /* |
320 | * Realize @dev. | |
321 | * Device properties should be set before calling this function. IRQs | |
322 | * and MMIO regions should be connected/mapped after calling this | |
323 | * function. | |
324 | * On failure, report an error with error_report() and terminate the | |
325 | * program. This is okay during machine creation. Don't use for | |
326 | * hotplug, because there callers need to recover from failure. | |
327 | * Exception: if you know the device's init() callback can't fail, | |
328 | * then qdev_init_nofail() can't fail either, and is therefore usable | |
329 | * even then. But relying on the device implementation that way is | |
330 | * somewhat unclean, and best avoided. | |
331 | */ | |
e23a1b33 MA |
332 | void qdev_init_nofail(DeviceState *dev) |
333 | { | |
c4bacafb | 334 | Error *err = NULL; |
7de3abe5 | 335 | |
c4bacafb MA |
336 | assert(!dev->realized); |
337 | ||
0d4104e5 | 338 | object_ref(OBJECT(dev)); |
c4bacafb MA |
339 | object_property_set_bool(OBJECT(dev), true, "realized", &err); |
340 | if (err) { | |
c29b77f9 MA |
341 | error_reportf_err(err, "Initialization of device %s failed: ", |
342 | object_get_typename(OBJECT(dev))); | |
bd6c9a61 MA |
343 | exit(1); |
344 | } | |
0d4104e5 | 345 | object_unref(OBJECT(dev)); |
e23a1b33 MA |
346 | } |
347 | ||
3418bd25 GH |
348 | void qdev_machine_creation_done(void) |
349 | { | |
350 | /* | |
351 | * ok, initial machine setup is done, starting from now we can | |
352 | * only create hotpluggable devices | |
353 | */ | |
9bed84c1 | 354 | qdev_hotplug = true; |
3418bd25 GH |
355 | } |
356 | ||
0ac8ef71 AW |
357 | bool qdev_machine_modified(void) |
358 | { | |
359 | return qdev_hot_added || qdev_hot_removed; | |
360 | } | |
361 | ||
02e2da45 | 362 | BusState *qdev_get_parent_bus(DeviceState *dev) |
aae9460e | 363 | { |
02e2da45 | 364 | return dev->parent_bus; |
aae9460e PB |
365 | } |
366 | ||
a5f54290 PC |
367 | static NamedGPIOList *qdev_get_named_gpio_list(DeviceState *dev, |
368 | const char *name) | |
369 | { | |
370 | NamedGPIOList *ngl; | |
371 | ||
372 | QLIST_FOREACH(ngl, &dev->gpios, node) { | |
373 | /* NULL is a valid and matchable name, otherwise do a normal | |
374 | * strcmp match. | |
375 | */ | |
376 | if ((!ngl->name && !name) || | |
377 | (name && ngl->name && strcmp(name, ngl->name) == 0)) { | |
378 | return ngl; | |
379 | } | |
380 | } | |
381 | ||
382 | ngl = g_malloc0(sizeof(*ngl)); | |
383 | ngl->name = g_strdup(name); | |
384 | QLIST_INSERT_HEAD(&dev->gpios, ngl, node); | |
385 | return ngl; | |
386 | } | |
387 | ||
388 | void qdev_init_gpio_in_named(DeviceState *dev, qemu_irq_handler handler, | |
389 | const char *name, int n) | |
390 | { | |
a69bef1c | 391 | int i; |
a5f54290 PC |
392 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); |
393 | ||
b235a71f | 394 | assert(gpio_list->num_out == 0 || !name); |
a5f54290 PC |
395 | gpio_list->in = qemu_extend_irqs(gpio_list->in, gpio_list->num_in, handler, |
396 | dev, n); | |
a69bef1c | 397 | |
6c76b377 PF |
398 | if (!name) { |
399 | name = "unnamed-gpio-in"; | |
400 | } | |
a69bef1c | 401 | for (i = gpio_list->num_in; i < gpio_list->num_in + n; i++) { |
6c76b377 PF |
402 | gchar *propname = g_strdup_printf("%s[%u]", name, i); |
403 | ||
a69bef1c PC |
404 | object_property_add_child(OBJECT(dev), propname, |
405 | OBJECT(gpio_list->in[i]), &error_abort); | |
6c76b377 | 406 | g_free(propname); |
a69bef1c | 407 | } |
a69bef1c | 408 | |
a5f54290 PC |
409 | gpio_list->num_in += n; |
410 | } | |
411 | ||
aae9460e PB |
412 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
413 | { | |
a5f54290 PC |
414 | qdev_init_gpio_in_named(dev, handler, NULL, n); |
415 | } | |
416 | ||
417 | void qdev_init_gpio_out_named(DeviceState *dev, qemu_irq *pins, | |
418 | const char *name, int n) | |
419 | { | |
688b057a | 420 | int i; |
a5f54290 PC |
421 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); |
422 | ||
b235a71f | 423 | assert(gpio_list->num_in == 0 || !name); |
688b057a | 424 | |
6c76b377 PF |
425 | if (!name) { |
426 | name = "unnamed-gpio-out"; | |
427 | } | |
428 | memset(pins, 0, sizeof(*pins) * n); | |
688b057a | 429 | for (i = 0; i < n; ++i) { |
6c76b377 PF |
430 | gchar *propname = g_strdup_printf("%s[%u]", name, |
431 | gpio_list->num_out + i); | |
432 | ||
688b057a PC |
433 | object_property_add_link(OBJECT(dev), propname, TYPE_IRQ, |
434 | (Object **)&pins[i], | |
435 | object_property_allow_set_link, | |
436 | OBJ_PROP_LINK_UNREF_ON_RELEASE, | |
437 | &error_abort); | |
6c76b377 | 438 | g_free(propname); |
688b057a | 439 | } |
6c76b377 | 440 | gpio_list->num_out += n; |
aae9460e PB |
441 | } |
442 | ||
443 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) | |
444 | { | |
a5f54290 PC |
445 | qdev_init_gpio_out_named(dev, pins, NULL, n); |
446 | } | |
447 | ||
448 | qemu_irq qdev_get_gpio_in_named(DeviceState *dev, const char *name, int n) | |
449 | { | |
450 | NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name); | |
451 | ||
452 | assert(n >= 0 && n < gpio_list->num_in); | |
453 | return gpio_list->in[n]; | |
aae9460e PB |
454 | } |
455 | ||
456 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) | |
457 | { | |
a5f54290 PC |
458 | return qdev_get_gpio_in_named(dev, NULL, n); |
459 | } | |
460 | ||
461 | void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n, | |
462 | qemu_irq pin) | |
463 | { | |
02757df2 PC |
464 | char *propname = g_strdup_printf("%s[%d]", |
465 | name ? name : "unnamed-gpio-out", n); | |
466 | if (pin) { | |
467 | /* We need a name for object_property_set_link to work. If the | |
468 | * object has a parent, object_property_add_child will come back | |
469 | * with an error without doing anything. If it has none, it will | |
470 | * never fail. So we can just call it with a NULL Error pointer. | |
471 | */ | |
88950eef AF |
472 | object_property_add_child(container_get(qdev_get_machine(), |
473 | "/unattached"), | |
474 | "non-qdev-gpio[*]", OBJECT(pin), NULL); | |
02757df2 PC |
475 | } |
476 | object_property_set_link(OBJECT(dev), OBJECT(pin), propname, &error_abort); | |
477 | g_free(propname); | |
aae9460e PB |
478 | } |
479 | ||
b7973186 AG |
480 | qemu_irq qdev_get_gpio_out_connector(DeviceState *dev, const char *name, int n) |
481 | { | |
482 | char *propname = g_strdup_printf("%s[%d]", | |
483 | name ? name : "unnamed-gpio-out", n); | |
484 | ||
485 | qemu_irq ret = (qemu_irq)object_property_get_link(OBJECT(dev), propname, | |
486 | NULL); | |
487 | ||
488 | return ret; | |
489 | } | |
490 | ||
67cc32eb | 491 | /* disconnect a GPIO output, returning the disconnected input (if any) */ |
0c24db2b PC |
492 | |
493 | static qemu_irq qdev_disconnect_gpio_out_named(DeviceState *dev, | |
494 | const char *name, int n) | |
495 | { | |
496 | char *propname = g_strdup_printf("%s[%d]", | |
497 | name ? name : "unnamed-gpio-out", n); | |
498 | ||
499 | qemu_irq ret = (qemu_irq)object_property_get_link(OBJECT(dev), propname, | |
500 | NULL); | |
501 | if (ret) { | |
502 | object_property_set_link(OBJECT(dev), NULL, propname, NULL); | |
503 | } | |
504 | g_free(propname); | |
505 | return ret; | |
506 | } | |
a5f54290 | 507 | |
0c24db2b PC |
508 | qemu_irq qdev_intercept_gpio_out(DeviceState *dev, qemu_irq icpt, |
509 | const char *name, int n) | |
510 | { | |
511 | qemu_irq disconnected = qdev_disconnect_gpio_out_named(dev, name, n); | |
512 | qdev_connect_gpio_out_named(dev, name, n, icpt); | |
513 | return disconnected; | |
aae9460e PB |
514 | } |
515 | ||
516 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) | |
517 | { | |
a5f54290 | 518 | qdev_connect_gpio_out_named(dev, NULL, n, pin); |
aae9460e PB |
519 | } |
520 | ||
17a96a14 PC |
521 | void qdev_pass_gpios(DeviceState *dev, DeviceState *container, |
522 | const char *name) | |
523 | { | |
524 | int i; | |
525 | NamedGPIOList *ngl = qdev_get_named_gpio_list(dev, name); | |
526 | ||
527 | for (i = 0; i < ngl->num_in; i++) { | |
528 | const char *nm = ngl->name ? ngl->name : "unnamed-gpio-in"; | |
529 | char *propname = g_strdup_printf("%s[%d]", nm, i); | |
530 | ||
531 | object_property_add_alias(OBJECT(container), propname, | |
532 | OBJECT(dev), propname, | |
533 | &error_abort); | |
6bc5cf92 | 534 | g_free(propname); |
17a96a14 PC |
535 | } |
536 | for (i = 0; i < ngl->num_out; i++) { | |
537 | const char *nm = ngl->name ? ngl->name : "unnamed-gpio-out"; | |
538 | char *propname = g_strdup_printf("%s[%d]", nm, i); | |
539 | ||
540 | object_property_add_alias(OBJECT(container), propname, | |
541 | OBJECT(dev), propname, | |
542 | &error_abort); | |
6bc5cf92 | 543 | g_free(propname); |
17a96a14 PC |
544 | } |
545 | QLIST_REMOVE(ngl, node); | |
546 | QLIST_INSERT_HEAD(&container->gpios, ngl, node); | |
547 | } | |
548 | ||
02e2da45 | 549 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
4d6ae674 | 550 | { |
02e2da45 | 551 | BusState *bus; |
f698c8ba PC |
552 | Object *child = object_resolve_path_component(OBJECT(dev), name); |
553 | ||
554 | bus = (BusState *)object_dynamic_cast(child, TYPE_BUS); | |
555 | if (bus) { | |
556 | return bus; | |
557 | } | |
4d6ae674 | 558 | |
72cf2d4f | 559 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
4d6ae674 | 560 | if (strcmp(name, bus->name) == 0) { |
02e2da45 | 561 | return bus; |
4d6ae674 PB |
562 | } |
563 | } | |
564 | return NULL; | |
565 | } | |
566 | ||
0293214b PB |
567 | int qdev_walk_children(DeviceState *dev, |
568 | qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn, | |
569 | qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn, | |
570 | void *opaque) | |
81699d8a AL |
571 | { |
572 | BusState *bus; | |
573 | int err; | |
574 | ||
0293214b PB |
575 | if (pre_devfn) { |
576 | err = pre_devfn(dev, opaque); | |
81699d8a AL |
577 | if (err) { |
578 | return err; | |
579 | } | |
580 | } | |
581 | ||
582 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
0293214b PB |
583 | err = qbus_walk_children(bus, pre_devfn, pre_busfn, |
584 | post_devfn, post_busfn, opaque); | |
81699d8a AL |
585 | if (err < 0) { |
586 | return err; | |
587 | } | |
588 | } | |
589 | ||
0293214b PB |
590 | if (post_devfn) { |
591 | err = post_devfn(dev, opaque); | |
592 | if (err) { | |
593 | return err; | |
594 | } | |
595 | } | |
596 | ||
81699d8a AL |
597 | return 0; |
598 | } | |
599 | ||
a2ee6b4f | 600 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
3418bd25 | 601 | { |
0866aca1 AL |
602 | BusChild *kid; |
603 | DeviceState *ret; | |
3418bd25 GH |
604 | BusState *child; |
605 | ||
0866aca1 AL |
606 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
607 | DeviceState *dev = kid->child; | |
608 | ||
609 | if (dev->id && strcmp(dev->id, id) == 0) { | |
3418bd25 | 610 | return dev; |
0866aca1 AL |
611 | } |
612 | ||
3418bd25 GH |
613 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
614 | ret = qdev_find_recursive(child, id); | |
615 | if (ret) { | |
616 | return ret; | |
617 | } | |
618 | } | |
619 | } | |
620 | return NULL; | |
621 | } | |
622 | ||
09e5ab63 | 623 | char *qdev_get_dev_path(DeviceState *dev) |
85ed303b | 624 | { |
0d936928 | 625 | BusClass *bc; |
09e5ab63 AL |
626 | |
627 | if (!dev || !dev->parent_bus) { | |
628 | return NULL; | |
629 | } | |
630 | ||
0d936928 AL |
631 | bc = BUS_GET_CLASS(dev->parent_bus); |
632 | if (bc->get_dev_path) { | |
633 | return bc->get_dev_path(dev); | |
09e5ab63 AL |
634 | } |
635 | ||
636 | return NULL; | |
44677ded | 637 | } |
a5296ca9 AL |
638 | |
639 | /** | |
640 | * Legacy property handling | |
641 | */ | |
642 | ||
d7bce999 EB |
643 | static void qdev_get_legacy_property(Object *obj, Visitor *v, |
644 | const char *name, void *opaque, | |
645 | Error **errp) | |
a5296ca9 | 646 | { |
57c9fafe | 647 | DeviceState *dev = DEVICE(obj); |
a5296ca9 AL |
648 | Property *prop = opaque; |
649 | ||
e3cb6ba6 PB |
650 | char buffer[1024]; |
651 | char *ptr = buffer; | |
a5296ca9 | 652 | |
e3cb6ba6 | 653 | prop->info->print(dev, prop, buffer, sizeof(buffer)); |
51e72bc1 | 654 | visit_type_str(v, name, &ptr, errp); |
a5296ca9 AL |
655 | } |
656 | ||
a5296ca9 | 657 | /** |
d9d8d452 C |
658 | * qdev_property_add_legacy: |
659 | * @dev: Device to add the property to. | |
660 | * @prop: The qdev property definition. | |
661 | * @errp: location to store error information. | |
662 | * | |
663 | * Add a legacy QOM property to @dev for qdev property @prop. | |
664 | * On error, store error in @errp. | |
a5296ca9 | 665 | * |
d9d8d452 C |
666 | * Legacy properties are string versions of QOM properties. The format of |
667 | * the string depends on the property type. Legacy properties are only | |
668 | * needed for "info qtree". | |
a5296ca9 | 669 | * |
d9d8d452 C |
670 | * Do not use this is new code! QOM Properties added through this interface |
671 | * will be given names in the "legacy" namespace. | |
a5296ca9 | 672 | */ |
f5a014d2 SW |
673 | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
674 | Error **errp) | |
a5296ca9 | 675 | { |
7ce7ffe0 | 676 | gchar *name; |
a5296ca9 | 677 | |
f3be016d | 678 | /* Register pointer properties as legacy properties */ |
03ff7770 | 679 | if (!prop->info->print && prop->info->get) { |
68ee3569 PB |
680 | return; |
681 | } | |
f3be016d | 682 | |
faabdbb7 FZ |
683 | if (prop->info->create) { |
684 | return; | |
685 | } | |
686 | ||
ca2cc788 | 687 | name = g_strdup_printf("legacy-%s", prop->name); |
7ce7ffe0 | 688 | object_property_add(OBJECT(dev), name, "str", |
68ee3569 | 689 | prop->info->print ? qdev_get_legacy_property : prop->info->get, |
03ff7770 | 690 | NULL, |
57c9fafe AL |
691 | NULL, |
692 | prop, errp); | |
a5296ca9 | 693 | |
ca2cc788 PB |
694 | g_free(name); |
695 | } | |
696 | ||
697 | /** | |
d9d8d452 C |
698 | * qdev_property_add_static: |
699 | * @dev: Device to add the property to. | |
700 | * @prop: The qdev property definition. | |
701 | * @errp: location to store error information. | |
ca2cc788 | 702 | * |
d9d8d452 C |
703 | * Add a static QOM property to @dev for qdev property @prop. |
704 | * On error, store error in @errp. Static properties access data in a struct. | |
705 | * The type of the QOM property is derived from prop->info. | |
ca2cc788 PB |
706 | */ |
707 | void qdev_property_add_static(DeviceState *dev, Property *prop, | |
708 | Error **errp) | |
709 | { | |
fdae245f PB |
710 | Error *local_err = NULL; |
711 | Object *obj = OBJECT(dev); | |
712 | ||
faabdbb7 FZ |
713 | if (prop->info->create) { |
714 | prop->info->create(obj, prop, &local_err); | |
715 | } else { | |
716 | /* | |
717 | * TODO qdev_prop_ptr does not have getters or setters. It must | |
718 | * go now that it can be replaced with links. The test should be | |
719 | * removed along with it: all static properties are read/write. | |
720 | */ | |
721 | if (!prop->info->get && !prop->info->set) { | |
722 | return; | |
723 | } | |
724 | object_property_add(obj, prop->name, prop->info->name, | |
725 | prop->info->get, prop->info->set, | |
726 | prop->info->release, | |
727 | prop, &local_err); | |
d822979b PB |
728 | } |
729 | ||
fdae245f PB |
730 | if (local_err) { |
731 | error_propagate(errp, local_err); | |
732 | return; | |
733 | } | |
b8c9cd5c GA |
734 | |
735 | object_property_set_description(obj, prop->name, | |
736 | prop->info->description, | |
737 | &error_abort); | |
738 | ||
5cc56cc6 | 739 | if (prop->set_default) { |
a2740ad5 | 740 | prop->info->set_default_value(obj, prop); |
fdae245f | 741 | } |
6a146eba | 742 | } |
1de81d28 | 743 | |
67cc7e0a SH |
744 | /* @qdev_alias_all_properties - Add alias properties to the source object for |
745 | * all qdev properties on the target DeviceState. | |
746 | */ | |
747 | void qdev_alias_all_properties(DeviceState *target, Object *source) | |
748 | { | |
749 | ObjectClass *class; | |
750 | Property *prop; | |
751 | ||
752 | class = object_get_class(OBJECT(target)); | |
753 | do { | |
754 | DeviceClass *dc = DEVICE_CLASS(class); | |
755 | ||
756 | for (prop = dc->props; prop && prop->name; prop++) { | |
757 | object_property_add_alias(source, prop->name, | |
758 | OBJECT(target), prop->name, | |
759 | &error_abort); | |
760 | } | |
761 | class = object_class_get_parent(class); | |
762 | } while (class != object_class_by_name(TYPE_DEVICE)); | |
763 | } | |
764 | ||
4cae4d5a | 765 | static int qdev_add_hotpluggable_device(Object *obj, void *opaque) |
66e56b13 ZG |
766 | { |
767 | GSList **list = opaque; | |
09d56017 JL |
768 | DeviceState *dev = (DeviceState *)object_dynamic_cast(OBJECT(obj), |
769 | TYPE_DEVICE); | |
770 | ||
771 | if (dev == NULL) { | |
772 | return 0; | |
773 | } | |
66e56b13 ZG |
774 | |
775 | if (dev->realized && object_property_get_bool(obj, "hotpluggable", NULL)) { | |
776 | *list = g_slist_append(*list, dev); | |
777 | } | |
778 | ||
66e56b13 ZG |
779 | return 0; |
780 | } | |
781 | ||
4cae4d5a MA |
782 | GSList *qdev_build_hotpluggable_device_list(Object *peripheral) |
783 | { | |
784 | GSList *list = NULL; | |
785 | ||
786 | object_child_foreach(peripheral, qdev_add_hotpluggable_device, &list); | |
787 | ||
788 | return list; | |
789 | } | |
790 | ||
a7737e44 | 791 | static bool device_get_realized(Object *obj, Error **errp) |
249d4172 AF |
792 | { |
793 | DeviceState *dev = DEVICE(obj); | |
794 | return dev->realized; | |
795 | } | |
796 | ||
1bfe5f05 JQ |
797 | static bool check_only_migratable(Object *obj, Error **err) |
798 | { | |
799 | DeviceClass *dc = DEVICE_GET_CLASS(obj); | |
800 | ||
801 | if (!vmstate_check_only_migratable(dc->vmsd)) { | |
802 | error_setg(err, "Device %s is not migratable, but " | |
803 | "--only-migratable was specified", | |
804 | object_get_typename(obj)); | |
805 | return false; | |
806 | } | |
807 | ||
808 | return true; | |
809 | } | |
810 | ||
a7737e44 | 811 | static void device_set_realized(Object *obj, bool value, Error **errp) |
249d4172 AF |
812 | { |
813 | DeviceState *dev = DEVICE(obj); | |
814 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
7716b8ca | 815 | HotplugHandler *hotplug_ctrl; |
5c21ce77 | 816 | BusState *bus; |
249d4172 | 817 | Error *local_err = NULL; |
69382d8b IM |
818 | bool unattached_parent = false; |
819 | static int unattached_count; | |
249d4172 | 820 | |
1a37eca1 | 821 | if (dev->hotplugged && !dc->hotpluggable) { |
c6bd8c70 | 822 | error_setg(errp, QERR_DEVICE_NO_HOTPLUG, object_get_typename(obj)); |
1a37eca1 IM |
823 | return; |
824 | } | |
825 | ||
249d4172 | 826 | if (value && !dev->realized) { |
1bfe5f05 | 827 | if (!check_only_migratable(obj, &local_err)) { |
7562f907 AA |
828 | goto fail; |
829 | } | |
830 | ||
d578029e | 831 | if (!obj->parent) { |
249d4172 AF |
832 | gchar *name = g_strdup_printf("device[%d]", unattached_count++); |
833 | ||
834 | object_property_add_child(container_get(qdev_get_machine(), | |
835 | "/unattached"), | |
d578029e | 836 | name, obj, &error_abort); |
69382d8b | 837 | unattached_parent = true; |
249d4172 AF |
838 | g_free(name); |
839 | } | |
840 | ||
41346263 IM |
841 | hotplug_ctrl = qdev_get_hotplug_handler(dev); |
842 | if (hotplug_ctrl) { | |
843 | hotplug_handler_pre_plug(hotplug_ctrl, dev, &local_err); | |
844 | if (local_err != NULL) { | |
845 | goto fail; | |
846 | } | |
847 | } | |
848 | ||
a7ddba52 IM |
849 | if (dc->realize) { |
850 | dc->realize(dev, &local_err); | |
851 | } | |
852 | ||
1d45a705 GA |
853 | if (local_err != NULL) { |
854 | goto fail; | |
855 | } | |
856 | ||
707ff800 PD |
857 | DEVICE_LISTENER_CALL(realize, Forward, dev); |
858 | ||
7716b8ca IM |
859 | if (hotplug_ctrl) { |
860 | hotplug_handler_plug(hotplug_ctrl, dev, &local_err); | |
5e954943 IM |
861 | } |
862 | ||
1d45a705 GA |
863 | if (local_err != NULL) { |
864 | goto post_realize_fail; | |
865 | } | |
866 | ||
04162f8f MR |
867 | /* |
868 | * always free/re-initialize here since the value cannot be cleaned up | |
869 | * in device_unrealize due to its usage later on in the unplug path | |
870 | */ | |
871 | g_free(dev->canonical_path); | |
872 | dev->canonical_path = object_get_canonical_path(OBJECT(dev)); | |
873 | ||
1d45a705 | 874 | if (qdev_get_vmsd(dev)) { |
67980031 DDAG |
875 | if (vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev, |
876 | dev->instance_id_alias, | |
877 | dev->alias_required_for_version, | |
878 | &local_err) < 0) { | |
879 | goto post_realize_fail; | |
880 | } | |
249d4172 | 881 | } |
1d45a705 GA |
882 | |
883 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
884 | object_property_set_bool(OBJECT(bus), true, "realized", | |
5c21ce77 | 885 | &local_err); |
1d45a705 GA |
886 | if (local_err != NULL) { |
887 | goto child_realize_fail; | |
5c21ce77 BD |
888 | } |
889 | } | |
1d45a705 | 890 | if (dev->hotplugged) { |
249d4172 AF |
891 | device_reset(dev); |
892 | } | |
352e8da7 | 893 | dev->pending_deleted_event = false; |
249d4172 | 894 | } else if (!value && dev->realized) { |
cd4520ad | 895 | Error **local_errp = NULL; |
5c21ce77 | 896 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
cd4520ad | 897 | local_errp = local_err ? NULL : &local_err; |
5c21ce77 | 898 | object_property_set_bool(OBJECT(bus), false, "realized", |
cd4520ad | 899 | local_errp); |
5c21ce77 | 900 | } |
cd4520ad | 901 | if (qdev_get_vmsd(dev)) { |
fe6c2117 AF |
902 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); |
903 | } | |
cd4520ad GA |
904 | if (dc->unrealize) { |
905 | local_errp = local_err ? NULL : &local_err; | |
906 | dc->unrealize(dev, local_errp); | |
249d4172 | 907 | } |
352e8da7 | 908 | dev->pending_deleted_event = true; |
707ff800 | 909 | DEVICE_LISTENER_CALL(unrealize, Reverse, dev); |
c7f8d0f3 | 910 | } |
249d4172 | 911 | |
c7f8d0f3 XG |
912 | if (local_err != NULL) { |
913 | goto fail; | |
249d4172 AF |
914 | } |
915 | ||
c7f8d0f3 | 916 | dev->realized = value; |
1d45a705 GA |
917 | return; |
918 | ||
919 | child_realize_fail: | |
920 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { | |
921 | object_property_set_bool(OBJECT(bus), false, "realized", | |
922 | NULL); | |
923 | } | |
924 | ||
925 | if (qdev_get_vmsd(dev)) { | |
926 | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); | |
927 | } | |
928 | ||
929 | post_realize_fail: | |
04162f8f MR |
930 | g_free(dev->canonical_path); |
931 | dev->canonical_path = NULL; | |
1d45a705 GA |
932 | if (dc->unrealize) { |
933 | dc->unrealize(dev, NULL); | |
934 | } | |
935 | ||
936 | fail: | |
937 | error_propagate(errp, local_err); | |
69382d8b IM |
938 | if (unattached_parent) { |
939 | object_unparent(OBJECT(dev)); | |
940 | unattached_count--; | |
941 | } | |
249d4172 AF |
942 | } |
943 | ||
a7737e44 | 944 | static bool device_get_hotpluggable(Object *obj, Error **errp) |
1a37eca1 IM |
945 | { |
946 | DeviceClass *dc = DEVICE_GET_CLASS(obj); | |
947 | DeviceState *dev = DEVICE(obj); | |
948 | ||
2b81b35f | 949 | return dc->hotpluggable && (dev->parent_bus == NULL || |
39b888bd | 950 | qbus_is_hotpluggable(dev->parent_bus)); |
1a37eca1 IM |
951 | } |
952 | ||
d012ffc1 IM |
953 | static bool device_get_hotplugged(Object *obj, Error **err) |
954 | { | |
955 | DeviceState *dev = DEVICE(obj); | |
956 | ||
957 | return dev->hotplugged; | |
958 | } | |
959 | ||
9674bfe4 AL |
960 | static void device_initfn(Object *obj) |
961 | { | |
962 | DeviceState *dev = DEVICE(obj); | |
bce54474 | 963 | ObjectClass *class; |
9674bfe4 AL |
964 | Property *prop; |
965 | ||
966 | if (qdev_hotplug) { | |
967 | dev->hotplugged = 1; | |
968 | qdev_hot_added = true; | |
969 | } | |
970 | ||
971 | dev->instance_id_alias = -1; | |
7983c8a3 | 972 | dev->realized = false; |
9674bfe4 | 973 | |
249d4172 AF |
974 | object_property_add_bool(obj, "realized", |
975 | device_get_realized, device_set_realized, NULL); | |
1a37eca1 IM |
976 | object_property_add_bool(obj, "hotpluggable", |
977 | device_get_hotpluggable, NULL, NULL); | |
d012ffc1 | 978 | object_property_add_bool(obj, "hotplugged", |
36cccb8c | 979 | device_get_hotplugged, NULL, |
d012ffc1 | 980 | &error_abort); |
249d4172 | 981 | |
bce54474 PB |
982 | class = object_get_class(OBJECT(dev)); |
983 | do { | |
984 | for (prop = DEVICE_CLASS(class)->props; prop && prop->name; prop++) { | |
5433a0a8 PC |
985 | qdev_property_add_legacy(dev, prop, &error_abort); |
986 | qdev_property_add_static(dev, prop, &error_abort); | |
bce54474 | 987 | } |
bce54474 PB |
988 | class = object_class_get_parent(class); |
989 | } while (class != object_class_by_name(TYPE_DEVICE)); | |
9674bfe4 | 990 | |
f968fc68 | 991 | object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS, |
39f72ef9 | 992 | (Object **)&dev->parent_bus, NULL, 0, |
9561fda8 | 993 | &error_abort); |
a5f54290 | 994 | QLIST_INIT(&dev->gpios); |
9674bfe4 AL |
995 | } |
996 | ||
99a0b036 EH |
997 | static void device_post_init(Object *obj) |
998 | { | |
25f8dd96 | 999 | qdev_prop_set_globals(DEVICE(obj)); |
99a0b036 EH |
1000 | } |
1001 | ||
60adba37 AL |
1002 | /* Unlink device from bus and free the structure. */ |
1003 | static void device_finalize(Object *obj) | |
1004 | { | |
a5f54290 PC |
1005 | NamedGPIOList *ngl, *next; |
1006 | ||
60adba37 | 1007 | DeviceState *dev = DEVICE(obj); |
a5f54290 PC |
1008 | |
1009 | QLIST_FOREACH_SAFE(ngl, &dev->gpios, node, next) { | |
1010 | QLIST_REMOVE(ngl, node); | |
f173d57a | 1011 | qemu_free_irqs(ngl->in, ngl->num_in); |
a5f54290 PC |
1012 | g_free(ngl->name); |
1013 | g_free(ngl); | |
1014 | /* ngl->out irqs are owned by the other end and should not be freed | |
1015 | * here | |
1016 | */ | |
1017 | } | |
f7b879e0 MR |
1018 | |
1019 | /* Only send event if the device had been completely realized */ | |
1020 | if (dev->pending_deleted_event) { | |
1021 | g_assert(dev->canonical_path); | |
1022 | ||
1023 | qapi_event_send_device_deleted(!!dev->id, dev->id, dev->canonical_path, | |
1024 | &error_abort); | |
1025 | g_free(dev->canonical_path); | |
1026 | dev->canonical_path = NULL; | |
1027 | } | |
1028 | ||
1029 | qemu_opts_del(dev->opts); | |
60adba37 AL |
1030 | } |
1031 | ||
bce54474 PB |
1032 | static void device_class_base_init(ObjectClass *class, void *data) |
1033 | { | |
1034 | DeviceClass *klass = DEVICE_CLASS(class); | |
1035 | ||
1036 | /* We explicitly look up properties in the superclasses, | |
1037 | * so do not propagate them to the subclasses. | |
1038 | */ | |
1039 | klass->props = NULL; | |
60adba37 AL |
1040 | } |
1041 | ||
5d5b24d0 | 1042 | static void device_unparent(Object *obj) |
667d22d1 PB |
1043 | { |
1044 | DeviceState *dev = DEVICE(obj); | |
06f7f2bb | 1045 | BusState *bus; |
667d22d1 | 1046 | |
5c21ce77 BD |
1047 | if (dev->realized) { |
1048 | object_property_set_bool(obj, false, "realized", NULL); | |
1049 | } | |
06f7f2bb PB |
1050 | while (dev->num_child_bus) { |
1051 | bus = QLIST_FIRST(&dev->child_bus); | |
6780a22c | 1052 | object_unparent(OBJECT(bus)); |
06f7f2bb | 1053 | } |
06f7f2bb | 1054 | if (dev->parent_bus) { |
5d5b24d0 | 1055 | bus_remove_child(dev->parent_bus, dev); |
62d7ba66 PB |
1056 | object_unref(OBJECT(dev->parent_bus)); |
1057 | dev->parent_bus = NULL; | |
5d5b24d0 | 1058 | } |
667d22d1 PB |
1059 | } |
1060 | ||
1061 | static void device_class_init(ObjectClass *class, void *data) | |
1062 | { | |
249d4172 AF |
1063 | DeviceClass *dc = DEVICE_CLASS(class); |
1064 | ||
5d5b24d0 | 1065 | class->unparent = device_unparent; |
249d4172 | 1066 | dc->realize = device_realize; |
fe6c2117 | 1067 | dc->unrealize = device_unrealize; |
267a3264 IM |
1068 | |
1069 | /* by default all devices were considered as hotpluggable, | |
1070 | * so with intent to check it in generic qdev_unplug() / | |
1071 | * device_set_realized() functions make every device | |
1072 | * hotpluggable. Devices that shouldn't be hotpluggable, | |
1073 | * should override it in their class_init() | |
1074 | */ | |
1075 | dc->hotpluggable = true; | |
e90f2a8c | 1076 | dc->user_creatable = true; |
667d22d1 PB |
1077 | } |
1078 | ||
46795cf2 PMD |
1079 | void device_class_set_parent_reset(DeviceClass *dc, |
1080 | DeviceReset dev_reset, | |
1081 | DeviceReset *parent_reset) | |
1082 | { | |
1083 | *parent_reset = dc->reset; | |
1084 | dc->reset = dev_reset; | |
1085 | } | |
1086 | ||
1087 | void device_class_set_parent_realize(DeviceClass *dc, | |
1088 | DeviceRealize dev_realize, | |
1089 | DeviceRealize *parent_realize) | |
1090 | { | |
1091 | *parent_realize = dc->realize; | |
1092 | dc->realize = dev_realize; | |
1093 | } | |
1094 | ||
1095 | void device_class_set_parent_unrealize(DeviceClass *dc, | |
1096 | DeviceUnrealize dev_unrealize, | |
1097 | DeviceUnrealize *parent_unrealize) | |
1098 | { | |
1099 | *parent_unrealize = dc->unrealize; | |
1100 | dc->unrealize = dev_unrealize; | |
1101 | } | |
1102 | ||
94afdadc AL |
1103 | void device_reset(DeviceState *dev) |
1104 | { | |
1105 | DeviceClass *klass = DEVICE_GET_CLASS(dev); | |
1106 | ||
1107 | if (klass->reset) { | |
1108 | klass->reset(dev); | |
1109 | } | |
1110 | } | |
1111 | ||
f05f6b4a PB |
1112 | Object *qdev_get_machine(void) |
1113 | { | |
1114 | static Object *dev; | |
1115 | ||
1116 | if (dev == NULL) { | |
dfe47e70 | 1117 | dev = container_get(object_get_root(), "/machine"); |
f05f6b4a PB |
1118 | } |
1119 | ||
1120 | return dev; | |
1121 | } | |
1122 | ||
8c43a6f0 | 1123 | static const TypeInfo device_type_info = { |
32fea402 AL |
1124 | .name = TYPE_DEVICE, |
1125 | .parent = TYPE_OBJECT, | |
1126 | .instance_size = sizeof(DeviceState), | |
9674bfe4 | 1127 | .instance_init = device_initfn, |
99a0b036 | 1128 | .instance_post_init = device_post_init, |
60adba37 | 1129 | .instance_finalize = device_finalize, |
bce54474 | 1130 | .class_base_init = device_class_base_init, |
667d22d1 | 1131 | .class_init = device_class_init, |
32fea402 AL |
1132 | .abstract = true, |
1133 | .class_size = sizeof(DeviceClass), | |
1134 | }; | |
1135 | ||
83f7d43a | 1136 | static void qdev_register_types(void) |
32fea402 AL |
1137 | { |
1138 | type_register_static(&device_type_info); | |
1139 | } | |
1140 | ||
83f7d43a | 1141 | type_init(qdev_register_types) |