1 #ifndef QEMU_QDEV_PROPERTIES_H
2 #define QEMU_QDEV_PROPERTIES_H
4 #include "hw/qdev-core.h"
6 /*** qdev-properties.c ***/
8 extern const PropertyInfo qdev_prop_bit;
9 extern const PropertyInfo qdev_prop_bit64;
10 extern const PropertyInfo qdev_prop_bool;
11 extern const PropertyInfo qdev_prop_uint8;
12 extern const PropertyInfo qdev_prop_uint16;
13 extern const PropertyInfo qdev_prop_uint32;
14 extern const PropertyInfo qdev_prop_int32;
15 extern const PropertyInfo qdev_prop_uint64;
16 extern const PropertyInfo qdev_prop_size;
17 extern const PropertyInfo qdev_prop_string;
18 extern const PropertyInfo qdev_prop_chr;
19 extern const PropertyInfo qdev_prop_ptr;
20 extern const PropertyInfo qdev_prop_macaddr;
21 extern const PropertyInfo qdev_prop_on_off_auto;
22 extern const PropertyInfo qdev_prop_losttickpolicy;
23 extern const PropertyInfo qdev_prop_blockdev_on_error;
24 extern const PropertyInfo qdev_prop_bios_chs_trans;
25 extern const PropertyInfo qdev_prop_fdc_drive_type;
26 extern const PropertyInfo qdev_prop_drive;
27 extern const PropertyInfo qdev_prop_netdev;
28 extern const PropertyInfo qdev_prop_vlan;
29 extern const PropertyInfo qdev_prop_pci_devfn;
30 extern const PropertyInfo qdev_prop_blocksize;
31 extern const PropertyInfo qdev_prop_pci_host_devaddr;
32 extern const PropertyInfo qdev_prop_arraylen;
33 extern const PropertyInfo qdev_prop_link;
35 #define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
38 .offset = offsetof(_state, _field) \
39 + type_check(_type, typeof_field(_state, _field)), \
42 #define DEFINE_PROP_SIGNED(_name, _state, _field, _defval, _prop, _type) { \
45 .offset = offsetof(_state, _field) \
46 + type_check(_type,typeof_field(_state, _field)), \
47 .defval.i = (_type)_defval, \
50 #define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) { \
52 .info = &(qdev_prop_bit), \
54 .offset = offsetof(_state, _field) \
55 + type_check(uint32_t,typeof_field(_state, _field)), \
56 .defval.u = (bool)_defval, \
59 #define DEFINE_PROP_UNSIGNED(_name, _state, _field, _defval, _prop, _type) { \
62 .offset = offsetof(_state, _field) \
63 + type_check(_type, typeof_field(_state, _field)), \
64 .defval.u = (_type)_defval, \
67 #define DEFINE_PROP_BIT64(_name, _state, _field, _bit, _defval) { \
69 .info = &(qdev_prop_bit64), \
71 .offset = offsetof(_state, _field) \
72 + type_check(uint64_t, typeof_field(_state, _field)), \
73 .defval.u = (bool)_defval, \
76 #define DEFINE_PROP_BOOL(_name, _state, _field, _defval) { \
78 .info = &(qdev_prop_bool), \
79 .offset = offsetof(_state, _field) \
80 + type_check(bool, typeof_field(_state, _field)), \
81 .defval.u = (bool)_defval, \
84 #define PROP_ARRAY_LEN_PREFIX "len-"
88 * @_name: name of the array
89 * @_state: name of the device state structure type
90 * @_field: uint32_t field in @_state to hold the array length
91 * @_arrayfield: field in @_state (of type '@_arraytype *') which
92 * will point to the array
93 * @_arrayprop: PropertyInfo defining what property the array elements have
94 * @_arraytype: C type of the array elements
96 * Define device properties for a variable-length array _name. A
97 * static property "len-arrayname" is defined. When the device creator
98 * sets this property to the desired length of array, further dynamic
99 * properties "arrayname[0]", "arrayname[1]", ... are defined so the
100 * device creator can set the array element values. Setting the
101 * "len-arrayname" property more than once is an error.
103 * When the array length is set, the @_field member of the device
104 * struct is set to the array length, and @_arrayfield is set to point
105 * to (zero-initialised) memory allocated for the array. For a zero
106 * length array, @_field will be set to 0 and @_arrayfield to NULL.
107 * It is the responsibility of the device deinit code to free the
108 * @_arrayfield memory.
110 #define DEFINE_PROP_ARRAY(_name, _state, _field, \
111 _arrayfield, _arrayprop, _arraytype) { \
112 .name = (PROP_ARRAY_LEN_PREFIX _name), \
113 .info = &(qdev_prop_arraylen), \
114 .offset = offsetof(_state, _field) \
115 + type_check(uint32_t, typeof_field(_state, _field)), \
116 .arrayinfo = &(_arrayprop), \
117 .arrayfieldsize = sizeof(_arraytype), \
118 .arrayoffset = offsetof(_state, _arrayfield), \
121 #define DEFINE_PROP_LINK(_name, _state, _field, _type, _ptr_type) { \
123 .info = &(qdev_prop_link), \
124 .offset = offsetof(_state, _field) \
125 + type_check(_ptr_type, typeof_field(_state, _field)), \
126 .link_type = _type, \
129 #define DEFINE_PROP_UINT8(_n, _s, _f, _d) \
130 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint8, uint8_t)
131 #define DEFINE_PROP_UINT16(_n, _s, _f, _d) \
132 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
133 #define DEFINE_PROP_UINT32(_n, _s, _f, _d) \
134 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint32, uint32_t)
135 #define DEFINE_PROP_INT32(_n, _s, _f, _d) \
136 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_int32, int32_t)
137 #define DEFINE_PROP_UINT64(_n, _s, _f, _d) \
138 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
139 #define DEFINE_PROP_SIZE(_n, _s, _f, _d) \
140 DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_size, uint64_t)
141 #define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d) \
142 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
145 * Please avoid pointer properties. If you must use them, you must
146 * cover them in their device's class init function as follows:
148 * - If the property must be set, the device cannot be used with
149 * device_add, so add code like this:
150 * |* Reason: pointer property "NAME-OF-YOUR-PROP" *|
151 * DeviceClass *dc = DEVICE_CLASS(class);
152 * dc->user_creatable = false;
154 * - If the property may safely remain null, document it like this:
156 * * Note: pointer property "interrupt_vector" may remain null, thus
157 * * no need for dc->user_creatable = false;
160 #define DEFINE_PROP_PTR(_n, _s, _f) \
161 DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
163 #define DEFINE_PROP_CHR(_n, _s, _f) \
164 DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharBackend)
165 #define DEFINE_PROP_STRING(_n, _s, _f) \
166 DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*)
167 #define DEFINE_PROP_NETDEV(_n, _s, _f) \
168 DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, NICPeers)
169 #define DEFINE_PROP_VLAN(_n, _s, _f) \
170 DEFINE_PROP(_n, _s, _f, qdev_prop_vlan, NICPeers)
171 #define DEFINE_PROP_DRIVE(_n, _s, _f) \
172 DEFINE_PROP(_n, _s, _f, qdev_prop_drive, BlockBackend *)
173 #define DEFINE_PROP_MACADDR(_n, _s, _f) \
174 DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr)
175 #define DEFINE_PROP_ON_OFF_AUTO(_n, _s, _f, _d) \
176 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_on_off_auto, OnOffAuto)
177 #define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
178 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
180 #define DEFINE_PROP_BLOCKDEV_ON_ERROR(_n, _s, _f, _d) \
181 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_blockdev_on_error, \
183 #define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
184 DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
185 #define DEFINE_PROP_BLOCKSIZE(_n, _s, _f) \
186 DEFINE_PROP_UNSIGNED(_n, _s, _f, 0, qdev_prop_blocksize, uint16_t)
187 #define DEFINE_PROP_PCI_HOST_DEVADDR(_n, _s, _f) \
188 DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)
189 #define DEFINE_PROP_MEMORY_REGION(_n, _s, _f) \
190 DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, MemoryRegion *)
192 #define DEFINE_PROP_END_OF_LIST() \
195 /* Set properties between creation and init. */
196 void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
197 void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value);
198 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
199 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
200 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
201 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value);
202 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
203 void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value);
204 void qdev_prop_set_chr(DeviceState *dev, const char *name, Chardev *value);
205 void qdev_prop_set_netdev(DeviceState *dev, const char *name, NetClientState *value);
206 void qdev_prop_set_drive(DeviceState *dev, const char *name,
207 BlockBackend *value, Error **errp);
208 void qdev_prop_set_macaddr(DeviceState *dev, const char *name,
209 const uint8_t *value);
210 void qdev_prop_set_enum(DeviceState *dev, const char *name, int value);
211 /* FIXME: Remove opaque pointer properties. */
212 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
214 void qdev_prop_register_global(GlobalProperty *prop);
215 void qdev_prop_register_global_list(GlobalProperty *props);
216 int qdev_prop_check_globals(void);
217 void qdev_prop_set_globals(DeviceState *dev);
218 void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
219 Property *prop, const char *value);
222 * register_compat_prop:
224 * Register internal (not user-provided) global property, changing the
225 * default value of a given property in a device type. This can be used
226 * for enabling machine-type compatibility or for enabling
227 * accelerator-specific defaults in devices.
229 * The property values set using this function must be always valid and
230 * never report setter errors, as the property will have
231 * GlobalProperty::errp set to &error_abort.
233 * User-provided global properties should override internal global
234 * properties, so callers of this function should ensure that it is
235 * called before user-provided global properties are registered.
237 * @driver: Device type to be affected
238 * @property: Property whose default value is going to be changed
239 * @value: New default value for the property
241 void register_compat_prop(const char *driver, const char *property,
244 * register_compat_props_array(): using register_compat_prop(), which
245 * only registers internal global properties (which has lower priority
246 * than user-provided global properties)
248 void register_compat_props_array(GlobalProperty *prop);
251 * qdev_property_add_static:
252 * @dev: Device to add the property to.
253 * @prop: The qdev property definition.
254 * @errp: location to store error information.
256 * Add a static QOM property to @dev for qdev property @prop.
257 * On error, store error in @errp. Static properties access data in a struct.
258 * The type of the QOM property is derived from prop->info.
260 void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp);
262 void qdev_alias_all_properties(DeviceState *target, Object *source);
265 * @qdev_prop_set_after_realize:
267 * @name: name of property
268 * @errp: indirect pointer to Error to be set
269 * Set the Error object to report that an attempt was made to set a property
270 * on a device after it has already been realized. This is a utility function
271 * which allows property-setter functions to easily report the error in
272 * a friendly format identifying both the device and the property.
274 void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
278 * qdev_prop_allow_set_link_before_realize:
280 * Set the #Error object if an attempt is made to set the link after realize.
281 * This function should be used as the check() argument to
282 * object_property_add_link().
284 void qdev_prop_allow_set_link_before_realize(const Object *obj,
286 Object *val, Error **errp);