blob: 0a71bf83f04700af621e00949695a5ea53345e14 [file] [log] [blame]
Anthony Liguori074a86f2012-08-10 12:00:43 -05001#ifndef QDEV_CORE_H
2#define QDEV_CORE_H
3
Paolo Bonzini1de7afc2012-12-17 18:20:00 +01004#include "qemu/queue.h"
5#include "qemu/option.h"
Marcel Apfelbaum949fc822013-07-29 17:17:43 +03006#include "qemu/bitmap.h"
Paolo Bonzini14cccb62012-12-17 18:19:50 +01007#include "qom/object.h"
Anthony Liguori074a86f2012-08-10 12:00:43 -05008#include "hw/irq.h"
Igor Mammedov0ee4de62014-02-05 16:36:45 +01009#include "hw/hotplug.h"
Anthony Liguori074a86f2012-08-10 12:00:43 -050010
Anthony Liguori074a86f2012-08-10 12:00:43 -050011enum {
12 DEV_NVECTORS_UNSPECIFIED = -1,
13};
14
15#define TYPE_DEVICE "device"
16#define DEVICE(obj) OBJECT_CHECK(DeviceState, (obj), TYPE_DEVICE)
17#define DEVICE_CLASS(klass) OBJECT_CLASS_CHECK(DeviceClass, (klass), TYPE_DEVICE)
18#define DEVICE_GET_CLASS(obj) OBJECT_GET_CLASS(DeviceClass, (obj), TYPE_DEVICE)
19
Marcel Apfelbaum3d1237f2013-07-29 17:17:44 +030020typedef enum DeviceCategory {
21 DEVICE_CATEGORY_BRIDGE,
22 DEVICE_CATEGORY_USB,
23 DEVICE_CATEGORY_STORAGE,
24 DEVICE_CATEGORY_NETWORK,
25 DEVICE_CATEGORY_INPUT,
26 DEVICE_CATEGORY_DISPLAY,
27 DEVICE_CATEGORY_SOUND,
28 DEVICE_CATEGORY_MISC,
Thomas Huthba31cc72017-01-20 14:01:16 +010029 DEVICE_CATEGORY_CPU,
Marcel Apfelbaum3d1237f2013-07-29 17:17:44 +030030 DEVICE_CATEGORY_MAX
31} DeviceCategory;
32
Anthony Liguori074a86f2012-08-10 12:00:43 -050033typedef int (*qdev_initfn)(DeviceState *dev);
34typedef int (*qdev_event)(DeviceState *dev);
35typedef void (*qdev_resetfn)(DeviceState *dev);
Andreas Färber249d4172013-01-09 03:58:11 +010036typedef void (*DeviceRealize)(DeviceState *dev, Error **errp);
37typedef void (*DeviceUnrealize)(DeviceState *dev, Error **errp);
Bandan Das02e7f852013-11-25 17:48:40 -050038typedef void (*BusRealize)(BusState *bus, Error **errp);
39typedef void (*BusUnrealize)(BusState *bus, Error **errp);
Anthony Liguori074a86f2012-08-10 12:00:43 -050040
41struct VMStateDescription;
42
Andreas Färber249d4172013-01-09 03:58:11 +010043/**
44 * DeviceClass:
45 * @props: Properties accessing state fields.
46 * @realize: Callback function invoked when the #DeviceState:realized
47 * property is changed to %true. The default invokes @init if not %NULL.
48 * @unrealize: Callback function invoked when the #DeviceState:realized
49 * property is changed to %false.
50 * @init: Callback function invoked when the #DeviceState::realized property
51 * is changed to %true. Deprecated, new types inheriting directly from
52 * TYPE_DEVICE should use @realize instead, new leaf types should consult
53 * their respective parent type.
Igor Mammedov1a37eca2014-02-05 16:36:46 +010054 * @hotpluggable: indicates if #DeviceClass is hotpluggable, available
55 * as readonly "hotpluggable" property of #DeviceState instance
Andreas Färber249d4172013-01-09 03:58:11 +010056 *
57 * # Realization #
58 * Devices are constructed in two stages,
59 * 1) object instantiation via object_initialize() and
60 * 2) device realization via #DeviceState:realized property.
61 * The former may not fail (it might assert or exit), the latter may return
62 * error information to the caller and must be re-entrant.
63 * Trivial field initializations should go into #TypeInfo.instance_init.
64 * Operations depending on @props static properties should go into @realize.
65 * After successful realization, setting static properties will fail.
66 *
Markus Armbrusterdaeba962015-06-19 16:17:23 +020067 * As an interim step, the #DeviceState:realized property can also be
68 * set with qdev_init_nofail().
Andreas Färber249d4172013-01-09 03:58:11 +010069 * In the future, devices will propagate this state change to their children
70 * and along busses they expose.
71 * The point in time will be deferred to machine creation, so that values
72 * set in @realize will not be introspectable beforehand. Therefore devices
73 * must not create children during @realize; they should initialize them via
74 * object_initialize() in their own #TypeInfo.instance_init and forward the
75 * realization events appropriately.
76 *
77 * The @init callback is considered private to a particular bus implementation
78 * (immediate abstract child types of TYPE_DEVICE). Derived leaf types set an
79 * "init" callback on their parent class instead.
Andreas Färber782beb52013-01-17 08:31:50 +010080 *
Andreas Färber249d4172013-01-09 03:58:11 +010081 * Any type may override the @realize and/or @unrealize callbacks but needs
Andreas Färber782beb52013-01-17 08:31:50 +010082 * to call the parent type's implementation if keeping their functionality
83 * is desired. Refer to QOM documentation for further discussion and examples.
84 *
85 * <note>
86 * <para>
Andreas Färber249d4172013-01-09 03:58:11 +010087 * If a type derived directly from TYPE_DEVICE implements @realize, it does
88 * not need to implement @init and therefore does not need to store and call
89 * #DeviceClass' default @realize callback.
Andreas Färber782beb52013-01-17 08:31:50 +010090 * For other types consult the documentation and implementation of the
91 * respective parent types.
92 * </para>
93 * </note>
Andreas Färber249d4172013-01-09 03:58:11 +010094 */
Anthony Liguori074a86f2012-08-10 12:00:43 -050095typedef struct DeviceClass {
Andreas Färber249d4172013-01-09 03:58:11 +010096 /*< private >*/
Anthony Liguori074a86f2012-08-10 12:00:43 -050097 ObjectClass parent_class;
Andreas Färber249d4172013-01-09 03:58:11 +010098 /*< public >*/
Anthony Liguori074a86f2012-08-10 12:00:43 -050099
Marcel Apfelbaum3d1237f2013-07-29 17:17:44 +0300100 DECLARE_BITMAP(categories, DEVICE_CATEGORY_MAX);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500101 const char *fw_name;
102 const char *desc;
103 Property *props;
Markus Armbrusterefec3dd2013-11-28 17:26:54 +0100104
105 /*
Eduardo Habkoste90f2a82017-05-03 17:35:44 -0300106 * Can this device be instantiated with -device / device_add?
Markus Armbrusterefec3dd2013-11-28 17:26:54 +0100107 * All devices should support instantiation with device_add, and
108 * this flag should not exist. But we're not there, yet. Some
109 * devices fail to instantiate with cryptic error messages.
110 * Others instantiate, but don't work. Exposing users to such
Eduardo Habkoste90f2a82017-05-03 17:35:44 -0300111 * behavior would be cruel; clearing this flag will protect them.
112 * It should never be cleared without a comment explaining why it
113 * is cleared.
Markus Armbrusterefec3dd2013-11-28 17:26:54 +0100114 * TODO remove once we're there
115 */
Eduardo Habkoste90f2a82017-05-03 17:35:44 -0300116 bool user_creatable;
Igor Mammedov1a37eca2014-02-05 16:36:46 +0100117 bool hotpluggable;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500118
119 /* callbacks */
120 void (*reset)(DeviceState *dev);
Andreas Färber249d4172013-01-09 03:58:11 +0100121 DeviceRealize realize;
122 DeviceUnrealize unrealize;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500123
124 /* device state */
125 const struct VMStateDescription *vmsd;
126
127 /* Private to qdev / bus. */
Andreas Färber249d4172013-01-09 03:58:11 +0100128 qdev_initfn init; /* TODO remove, once users are converted to realize */
Andreas Färberfe6c2112013-04-15 18:34:10 +0200129 qdev_event exit; /* TODO remove, once users are converted to unrealize */
Anthony Liguori074a86f2012-08-10 12:00:43 -0500130 const char *bus_type;
131} DeviceClass;
132
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700133typedef struct NamedGPIOList NamedGPIOList;
134
135struct NamedGPIOList {
136 char *name;
137 qemu_irq *in;
138 int num_in;
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700139 int num_out;
140 QLIST_ENTRY(NamedGPIOList) node;
141};
142
Andreas Färber7983c8a2013-01-09 03:58:10 +0100143/**
144 * DeviceState:
145 * @realized: Indicates whether the device has been fully constructed.
146 *
147 * This structure should not be accessed directly. We declare it here
148 * so that it can be embedded in individual device state structures.
149 */
Anthony Liguori074a86f2012-08-10 12:00:43 -0500150struct DeviceState {
Andreas Färber7983c8a2013-01-09 03:58:10 +0100151 /*< private >*/
Anthony Liguori074a86f2012-08-10 12:00:43 -0500152 Object parent_obj;
Andreas Färber7983c8a2013-01-09 03:58:10 +0100153 /*< public >*/
Anthony Liguori074a86f2012-08-10 12:00:43 -0500154
155 const char *id;
Michael Roth04162f82017-10-16 17:23:13 -0500156 char *canonical_path;
Andreas Färber7983c8a2013-01-09 03:58:10 +0100157 bool realized;
Paolo Bonzini352e8da2014-06-26 15:10:03 +0200158 bool pending_deleted_event;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500159 QemuOpts *opts;
160 int hotplugged;
161 BusState *parent_bus;
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700162 QLIST_HEAD(, NamedGPIOList) gpios;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500163 QLIST_HEAD(, BusState) child_bus;
164 int num_child_bus;
165 int instance_id_alias;
166 int alias_required_for_version;
167};
168
Paul Durrant707ff802015-01-20 11:05:07 +0000169struct DeviceListener {
170 void (*realize)(DeviceListener *listener, DeviceState *dev);
171 void (*unrealize)(DeviceListener *listener, DeviceState *dev);
172 QTAILQ_ENTRY(DeviceListener) link;
173};
174
Anthony Liguori074a86f2012-08-10 12:00:43 -0500175#define TYPE_BUS "bus"
176#define BUS(obj) OBJECT_CHECK(BusState, (obj), TYPE_BUS)
177#define BUS_CLASS(klass) OBJECT_CLASS_CHECK(BusClass, (klass), TYPE_BUS)
178#define BUS_GET_CLASS(obj) OBJECT_GET_CLASS(BusClass, (obj), TYPE_BUS)
179
180struct BusClass {
181 ObjectClass parent_class;
182
183 /* FIXME first arg should be BusState */
184 void (*print_dev)(Monitor *mon, DeviceState *dev, int indent);
185 char *(*get_dev_path)(DeviceState *dev);
186 /*
187 * This callback is used to create Open Firmware device path in accordance
188 * with OF spec http://forthworks.com/standards/of1275.pdf. Individual bus
189 * bindings can be found at http://playground.sun.com/1275/bindings/.
190 */
191 char *(*get_fw_dev_path)(DeviceState *dev);
Paolo Bonzinidcc20932013-12-06 17:54:27 +0100192 void (*reset)(BusState *bus);
Bandan Das02e7f852013-11-25 17:48:40 -0500193 BusRealize realize;
194 BusUnrealize unrealize;
195
KONRAD Frederic1395af62013-01-15 00:08:00 +0100196 /* maximum devices allowed on the bus, 0: no limit. */
197 int max_dev;
Alexander Graf61de3672014-02-06 16:08:15 +0100198 /* number of automatically allocated bus ids (e.g. ide.0) */
199 int automatic_ids;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500200};
201
202typedef struct BusChild {
203 DeviceState *child;
204 int index;
205 QTAILQ_ENTRY(BusChild) sibling;
206} BusChild;
207
Igor Mammedov0ee4de62014-02-05 16:36:45 +0100208#define QDEV_HOTPLUG_HANDLER_PROPERTY "hotplug-handler"
209
Anthony Liguori074a86f2012-08-10 12:00:43 -0500210/**
211 * BusState:
Igor Mammedov0ee4de62014-02-05 16:36:45 +0100212 * @hotplug_device: link to a hotplug device associated with bus.
Anthony Liguori074a86f2012-08-10 12:00:43 -0500213 */
214struct BusState {
215 Object obj;
216 DeviceState *parent;
Marc-André Lureauf73480c2016-07-15 12:04:49 +0200217 char *name;
Igor Mammedov0ee4de62014-02-05 16:36:45 +0100218 HotplugHandler *hotplug_handler;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500219 int max_index;
Bandan Das02e7f852013-11-25 17:48:40 -0500220 bool realized;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500221 QTAILQ_HEAD(ChildrenHead, BusChild) children;
222 QLIST_ENTRY(BusState) sibling;
223};
224
Peter Maydell5cc56cc2017-07-17 13:36:06 +0100225/**
226 * Property:
227 * @set_default: true if the default value should be set from @defval,
228 * in which case @info->set_default_value must not be NULL
229 * (if false then no default value is set by the property system
230 * and the field retains whatever value it was given by instance_init).
231 * @defval: default value for the property. This is used only if @set_default
232 * is true.
233 */
Anthony Liguori074a86f2012-08-10 12:00:43 -0500234struct Property {
235 const char *name;
Fam Zheng1b6b7d12017-07-14 10:14:54 +0800236 const PropertyInfo *info;
Ildar Isaev3b6ca402015-03-04 17:09:46 +0300237 ptrdiff_t offset;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500238 uint8_t bitnr;
Peter Maydell5cc56cc2017-07-17 13:36:06 +0100239 bool set_default;
Marc-André Lureau76318652017-06-07 20:36:08 +0400240 union {
241 int64_t i;
Marc-André Lureau3fb21112017-06-07 20:36:09 +0400242 uint64_t u;
Marc-André Lureau76318652017-06-07 20:36:08 +0400243 } defval;
Peter Maydell0be6bfa2013-03-15 16:41:57 +0000244 int arrayoffset;
Fam Zheng1b6b7d12017-07-14 10:14:54 +0800245 const PropertyInfo *arrayinfo;
Peter Maydell0be6bfa2013-03-15 16:41:57 +0000246 int arrayfieldsize;
Fam Zheng5b4ff3c2017-07-14 10:14:52 +0800247 const char *link_type;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500248};
249
250struct PropertyInfo {
251 const char *name;
Gonglei51b2e8c2014-10-07 14:33:20 +0800252 const char *description;
Marc-André Lureauf7abe0e2017-08-24 10:46:10 +0200253 const QEnumLookup *enum_table;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500254 int (*print)(DeviceState *dev, Property *prop, char *dest, size_t len);
Marc-André Lureaua2740ad2017-06-07 20:35:53 +0400255 void (*set_default_value)(Object *obj, const Property *prop);
Fam Zhengfaabdbb2017-07-14 10:14:51 +0800256 void (*create)(Object *obj, Property *prop, Error **errp);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500257 ObjectPropertyAccessor *get;
258 ObjectPropertyAccessor *set;
259 ObjectPropertyRelease *release;
260};
261
Don Slutz9f9260a2014-05-05 14:03:06 -0400262/**
263 * GlobalProperty:
Eduardo Habkostb3ce84f2014-08-08 16:03:31 -0300264 * @user_provided: Set to true if property comes from user-provided config
265 * (command-line or config file).
266 * @used: Set to true if property was used when initializing a device.
Eduardo Habkost77280ad2016-06-15 16:08:06 -0300267 * @errp: Error destination, used like first argument of error_setg()
268 * in case property setting fails later. If @errp is NULL, we
Greg Kurzb3443f42016-07-21 23:58:37 +0200269 * print warnings instead of ignoring errors silently. For
270 * hotplugged devices, errp is always ignored and warnings are
271 * printed instead.
Don Slutz9f9260a2014-05-05 14:03:06 -0400272 */
Anthony Liguori074a86f2012-08-10 12:00:43 -0500273typedef struct GlobalProperty {
274 const char *driver;
275 const char *property;
276 const char *value;
Eduardo Habkostb3ce84f2014-08-08 16:03:31 -0300277 bool user_provided;
278 bool used;
Eduardo Habkost77280ad2016-06-15 16:08:06 -0300279 Error **errp;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500280} GlobalProperty;
281
282/*** Board API. This should go away once we have a machine config file. ***/
283
284DeviceState *qdev_create(BusState *bus, const char *name);
285DeviceState *qdev_try_create(BusState *bus, const char *name);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500286void qdev_init_nofail(DeviceState *dev);
287void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id,
288 int required_for_version);
Zhu Guihuac06b2ff2015-04-27 16:47:21 +0800289HotplugHandler *qdev_get_hotplug_handler(DeviceState *dev);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500290void qdev_unplug(DeviceState *dev, Error **errp);
Igor Mammedov014176f2014-09-26 09:28:21 +0000291void qdev_simple_device_unplug_cb(HotplugHandler *hotplug_dev,
292 DeviceState *dev, Error **errp);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500293void qdev_machine_creation_done(void);
294bool qdev_machine_modified(void);
295
296qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700297qemu_irq qdev_get_gpio_in_named(DeviceState *dev, const char *name, int n);
298
Anthony Liguori074a86f2012-08-10 12:00:43 -0500299void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700300void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n,
301 qemu_irq pin);
Alexander Grafb7973182014-09-24 12:32:17 +0200302qemu_irq qdev_get_gpio_out_connector(DeviceState *dev, const char *name, int n);
Peter Crosthwaite0c24db22014-09-25 22:20:58 -0700303qemu_irq qdev_intercept_gpio_out(DeviceState *dev, qemu_irq icpt,
304 const char *name, int n);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500305
306BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
307
308/*** Device API. ***/
309
310/* Register device properties. */
311/* GPIO inputs also double as IRQ sinks. */
312void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n);
313void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n);
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700314void qdev_init_gpio_in_named(DeviceState *dev, qemu_irq_handler handler,
315 const char *name, int n);
316void qdev_init_gpio_out_named(DeviceState *dev, qemu_irq *pins,
317 const char *name, int n);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500318
Peter Crosthwaite17a96a12014-09-25 22:23:42 -0700319void qdev_pass_gpios(DeviceState *dev, DeviceState *container,
320 const char *name);
321
Anthony Liguori074a86f2012-08-10 12:00:43 -0500322BusState *qdev_get_parent_bus(DeviceState *dev);
323
324/*** BUS API. ***/
325
326DeviceState *qdev_find_recursive(BusState *bus, const char *id);
327
328/* Returns 0 to walk children, > 0 to skip walk, < 0 to terminate walk. */
329typedef int (qbus_walkerfn)(BusState *bus, void *opaque);
330typedef int (qdev_walkerfn)(DeviceState *dev, void *opaque);
331
Andreas Färberfb17dfe2013-08-24 00:02:27 +0200332void qbus_create_inplace(void *bus, size_t size, const char *typename,
Anthony Liguori074a86f2012-08-10 12:00:43 -0500333 DeviceState *parent, const char *name);
334BusState *qbus_create(const char *typename, DeviceState *parent, const char *name);
335/* Returns > 0 if either devfn or busfn skip walk somewhere in cursion,
336 * < 0 if either devfn or busfn terminate walk somewhere in cursion,
337 * 0 otherwise. */
Paolo Bonzini02932142013-12-06 17:54:26 +0100338int qbus_walk_children(BusState *bus,
339 qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn,
340 qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn,
341 void *opaque);
342int qdev_walk_children(DeviceState *dev,
343 qdev_walkerfn *pre_devfn, qbus_walkerfn *pre_busfn,
344 qdev_walkerfn *post_devfn, qbus_walkerfn *post_busfn,
345 void *opaque);
346
Anthony Liguori074a86f2012-08-10 12:00:43 -0500347void qdev_reset_all(DeviceState *dev);
David Hildenbrandff8de072015-07-21 08:32:07 +0200348void qdev_reset_all_fn(void *opaque);
Paolo Bonzinid0508c32013-01-10 15:49:07 +0100349
350/**
351 * @qbus_reset_all:
352 * @bus: Bus to be reset.
353 *
354 * Reset @bus and perform a bus-level ("hard") reset of all devices connected
355 * to it, including recursive processing of all buses below @bus itself. A
356 * hard reset means that qbus_reset_all will reset all state of the device.
357 * For PCI devices, for example, this will include the base address registers
358 * or configuration space.
359 */
360void qbus_reset_all(BusState *bus);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500361void qbus_reset_all_fn(void *opaque);
362
Anthony Liguori074a86f2012-08-10 12:00:43 -0500363/* This should go away once we get rid of the NULL bus hack */
364BusState *sysbus_get_default(void);
365
366char *qdev_get_fw_dev_path(DeviceState *dev);
Gonglei0be63902015-01-29 15:08:51 +0800367char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev);
Anthony Liguori074a86f2012-08-10 12:00:43 -0500368
369/**
370 * @qdev_machine_init
371 *
372 * Initialize platform devices before machine init. This is a hack until full
373 * support for composition is added.
374 */
375void qdev_machine_init(void);
376
377/**
378 * @device_reset
379 *
380 * Reset a single device (by calling the reset method).
381 */
382void device_reset(DeviceState *dev);
383
384const struct VMStateDescription *qdev_get_vmsd(DeviceState *dev);
385
386const char *qdev_fw_name(DeviceState *dev);
387
388Object *qdev_get_machine(void);
389
390/* FIXME: make this a link<> */
391void qdev_set_parent_bus(DeviceState *dev, BusState *bus);
392
Juan Quintela9bed84c2017-03-28 11:08:52 +0200393extern bool qdev_hotplug;
Juan Quintela21def242017-03-28 11:22:10 +0200394extern bool qdev_hot_removed;
Anthony Liguori074a86f2012-08-10 12:00:43 -0500395
396char *qdev_get_dev_path(DeviceState *dev);
397
Marcel Apfelbaum4cae4d52014-11-26 13:50:01 +0200398GSList *qdev_build_hotpluggable_device_list(Object *peripheral);
Zhu Guihua66e56b12014-10-21 19:46:04 +0800399
Igor Mammedov431bbb22014-09-26 09:28:22 +0000400void qbus_set_hotplug_handler(BusState *bus, DeviceState *handler,
401 Error **errp);
402
403void qbus_set_bus_hotplug_handler(BusState *bus, Error **errp);
Igor Mammedov39b888b2014-09-26 09:28:17 +0000404
405static inline bool qbus_is_hotpluggable(BusState *bus)
406{
Igor Mammedov2d9a9822014-09-26 09:28:40 +0000407 return bus->hotplug_handler;
Igor Mammedov39b888b2014-09-26 09:28:17 +0000408}
Paul Durrant707ff802015-01-20 11:05:07 +0000409
410void device_listener_register(DeviceListener *listener);
411void device_listener_unregister(DeviceListener *listener);
412
Anthony Liguori074a86f2012-08-10 12:00:43 -0500413#endif