xref: /qemu/include/hw/qdev-properties.h (revision 27a4a30e)
1 #ifndef QEMU_QDEV_PROPERTIES_H
2 #define QEMU_QDEV_PROPERTIES_H
3 
4 #include "hw/qdev-core.h"
5 
6 /*** qdev-properties.c ***/
7 
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_int64;
17 extern const PropertyInfo qdev_prop_size;
18 extern const PropertyInfo qdev_prop_string;
19 extern const PropertyInfo qdev_prop_chr;
20 extern const PropertyInfo qdev_prop_tpm;
21 extern const PropertyInfo qdev_prop_macaddr;
22 extern const PropertyInfo qdev_prop_on_off_auto;
23 extern const PropertyInfo qdev_prop_multifd_compression;
24 extern const PropertyInfo qdev_prop_losttickpolicy;
25 extern const PropertyInfo qdev_prop_blockdev_on_error;
26 extern const PropertyInfo qdev_prop_bios_chs_trans;
27 extern const PropertyInfo qdev_prop_fdc_drive_type;
28 extern const PropertyInfo qdev_prop_drive;
29 extern const PropertyInfo qdev_prop_drive_iothread;
30 extern const PropertyInfo qdev_prop_netdev;
31 extern const PropertyInfo qdev_prop_pci_devfn;
32 extern const PropertyInfo qdev_prop_blocksize;
33 extern const PropertyInfo qdev_prop_pci_host_devaddr;
34 extern const PropertyInfo qdev_prop_uuid;
35 extern const PropertyInfo qdev_prop_arraylen;
36 extern const PropertyInfo qdev_prop_audiodev;
37 extern const PropertyInfo qdev_prop_link;
38 extern const PropertyInfo qdev_prop_off_auto_pcibar;
39 extern const PropertyInfo qdev_prop_pcie_link_speed;
40 extern const PropertyInfo qdev_prop_pcie_link_width;
41 
42 #define DEFINE_PROP(_name, _state, _field, _prop, _type) { \
43         .name      = (_name),                                    \
44         .info      = &(_prop),                                   \
45         .offset    = offsetof(_state, _field)                    \
46             + type_check(_type, typeof_field(_state, _field)),   \
47         }
48 
49 #define DEFINE_PROP_SIGNED(_name, _state, _field, _defval, _prop, _type) { \
50         .name      = (_name),                                           \
51         .info      = &(_prop),                                          \
52         .offset    = offsetof(_state, _field)                           \
53             + type_check(_type,typeof_field(_state, _field)),           \
54         .set_default = true,                                            \
55         .defval.i  = (_type)_defval,                                    \
56         }
57 
58 #define DEFINE_PROP_SIGNED_NODEFAULT(_name, _state, _field, _prop, _type) { \
59         .name      = (_name),                                           \
60         .info      = &(_prop),                                          \
61         .offset    = offsetof(_state, _field)                           \
62             + type_check(_type, typeof_field(_state, _field)),          \
63         }
64 
65 #define DEFINE_PROP_BIT(_name, _state, _field, _bit, _defval) {  \
66         .name      = (_name),                                    \
67         .info      = &(qdev_prop_bit),                           \
68         .bitnr    = (_bit),                                      \
69         .offset    = offsetof(_state, _field)                    \
70             + type_check(uint32_t,typeof_field(_state, _field)), \
71         .set_default = true,                                     \
72         .defval.u  = (bool)_defval,                              \
73         }
74 
75 #define DEFINE_PROP_UNSIGNED(_name, _state, _field, _defval, _prop, _type) { \
76         .name      = (_name),                                           \
77         .info      = &(_prop),                                          \
78         .offset    = offsetof(_state, _field)                           \
79             + type_check(_type, typeof_field(_state, _field)),          \
80         .set_default = true,                                            \
81         .defval.u  = (_type)_defval,                                    \
82         }
83 
84 #define DEFINE_PROP_UNSIGNED_NODEFAULT(_name, _state, _field, _prop, _type) { \
85         .name      = (_name),                                           \
86         .info      = &(_prop),                                          \
87         .offset    = offsetof(_state, _field)                           \
88             + type_check(_type, typeof_field(_state, _field)),          \
89         }
90 
91 #define DEFINE_PROP_BIT64(_name, _state, _field, _bit, _defval) {       \
92         .name      = (_name),                                           \
93         .info      = &(qdev_prop_bit64),                                \
94         .bitnr    = (_bit),                                             \
95         .offset    = offsetof(_state, _field)                           \
96             + type_check(uint64_t, typeof_field(_state, _field)),       \
97         .set_default = true,                                            \
98         .defval.u  = (bool)_defval,                                     \
99         }
100 
101 #define DEFINE_PROP_BOOL(_name, _state, _field, _defval) {       \
102         .name      = (_name),                                    \
103         .info      = &(qdev_prop_bool),                          \
104         .offset    = offsetof(_state, _field)                    \
105             + type_check(bool, typeof_field(_state, _field)),    \
106         .set_default = true,                                     \
107         .defval.u    = (bool)_defval,                            \
108         }
109 
110 #define PROP_ARRAY_LEN_PREFIX "len-"
111 
112 /**
113  * DEFINE_PROP_ARRAY:
114  * @_name: name of the array
115  * @_state: name of the device state structure type
116  * @_field: uint32_t field in @_state to hold the array length
117  * @_arrayfield: field in @_state (of type '@_arraytype *') which
118  *               will point to the array
119  * @_arrayprop: PropertyInfo defining what property the array elements have
120  * @_arraytype: C type of the array elements
121  *
122  * Define device properties for a variable-length array _name.  A
123  * static property "len-arrayname" is defined. When the device creator
124  * sets this property to the desired length of array, further dynamic
125  * properties "arrayname[0]", "arrayname[1]", ...  are defined so the
126  * device creator can set the array element values. Setting the
127  * "len-arrayname" property more than once is an error.
128  *
129  * When the array length is set, the @_field member of the device
130  * struct is set to the array length, and @_arrayfield is set to point
131  * to (zero-initialised) memory allocated for the array.  For a zero
132  * length array, @_field will be set to 0 and @_arrayfield to NULL.
133  * It is the responsibility of the device deinit code to free the
134  * @_arrayfield memory.
135  */
136 #define DEFINE_PROP_ARRAY(_name, _state, _field,                        \
137                           _arrayfield, _arrayprop, _arraytype) {        \
138         .name = (PROP_ARRAY_LEN_PREFIX _name),                          \
139         .info = &(qdev_prop_arraylen),                                  \
140         .set_default = true,                                            \
141         .defval.u = 0,                                                  \
142         .offset = offsetof(_state, _field)                              \
143             + type_check(uint32_t, typeof_field(_state, _field)),       \
144         .arrayinfo = &(_arrayprop),                                     \
145         .arrayfieldsize = sizeof(_arraytype),                           \
146         .arrayoffset = offsetof(_state, _arrayfield),                   \
147         }
148 
149 #define DEFINE_PROP_LINK(_name, _state, _field, _type, _ptr_type) {     \
150         .name = (_name),                                                \
151         .info = &(qdev_prop_link),                                      \
152         .offset = offsetof(_state, _field)                              \
153             + type_check(_ptr_type, typeof_field(_state, _field)),      \
154         .link_type  = _type,                                            \
155         }
156 
157 #define DEFINE_PROP_UINT8(_n, _s, _f, _d)                       \
158     DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint8, uint8_t)
159 #define DEFINE_PROP_UINT16(_n, _s, _f, _d)                      \
160     DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
161 #define DEFINE_PROP_UINT32(_n, _s, _f, _d)                      \
162     DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint32, uint32_t)
163 #define DEFINE_PROP_INT32(_n, _s, _f, _d)                      \
164     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_int32, int32_t)
165 #define DEFINE_PROP_UINT64(_n, _s, _f, _d)                      \
166     DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
167 #define DEFINE_PROP_INT64(_n, _s, _f, _d)                      \
168     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_int64, int64_t)
169 #define DEFINE_PROP_SIZE(_n, _s, _f, _d)                       \
170     DEFINE_PROP_UNSIGNED(_n, _s, _f, _d, qdev_prop_size, uint64_t)
171 #define DEFINE_PROP_PCI_DEVFN(_n, _s, _f, _d)                   \
172     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_pci_devfn, int32_t)
173 
174 #define DEFINE_PROP_CHR(_n, _s, _f)             \
175     DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharBackend)
176 #define DEFINE_PROP_STRING(_n, _s, _f)             \
177     DEFINE_PROP(_n, _s, _f, qdev_prop_string, char*)
178 #define DEFINE_PROP_NETDEV(_n, _s, _f)             \
179     DEFINE_PROP(_n, _s, _f, qdev_prop_netdev, NICPeers)
180 #define DEFINE_PROP_DRIVE(_n, _s, _f) \
181     DEFINE_PROP(_n, _s, _f, qdev_prop_drive, BlockBackend *)
182 #define DEFINE_PROP_DRIVE_IOTHREAD(_n, _s, _f) \
183     DEFINE_PROP(_n, _s, _f, qdev_prop_drive_iothread, BlockBackend *)
184 #define DEFINE_PROP_MACADDR(_n, _s, _f)         \
185     DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, MACAddr)
186 #define DEFINE_PROP_ON_OFF_AUTO(_n, _s, _f, _d) \
187     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_on_off_auto, OnOffAuto)
188 #define DEFINE_PROP_MULTIFD_COMPRESSION(_n, _s, _f, _d) \
189     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_multifd_compression, \
190                        MultiFDCompression)
191 #define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
192     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
193                         LostTickPolicy)
194 #define DEFINE_PROP_BLOCKDEV_ON_ERROR(_n, _s, _f, _d) \
195     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_blockdev_on_error, \
196                         BlockdevOnError)
197 #define DEFINE_PROP_BIOS_CHS_TRANS(_n, _s, _f, _d) \
198     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_bios_chs_trans, int)
199 #define DEFINE_PROP_BLOCKSIZE(_n, _s, _f) \
200     DEFINE_PROP_UNSIGNED(_n, _s, _f, 0, qdev_prop_blocksize, uint16_t)
201 #define DEFINE_PROP_PCI_HOST_DEVADDR(_n, _s, _f) \
202     DEFINE_PROP(_n, _s, _f, qdev_prop_pci_host_devaddr, PCIHostDeviceAddress)
203 #define DEFINE_PROP_OFF_AUTO_PCIBAR(_n, _s, _f, _d) \
204     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_off_auto_pcibar, \
205                         OffAutoPCIBAR)
206 #define DEFINE_PROP_PCIE_LINK_SPEED(_n, _s, _f, _d) \
207     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_pcie_link_speed, \
208                         PCIExpLinkSpeed)
209 #define DEFINE_PROP_PCIE_LINK_WIDTH(_n, _s, _f, _d) \
210     DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_pcie_link_width, \
211                         PCIExpLinkWidth)
212 
213 #define DEFINE_PROP_UUID(_name, _state, _field) {                  \
214         .name      = (_name),                                      \
215         .info      = &qdev_prop_uuid,                              \
216         .offset    = offsetof(_state, _field)                      \
217             + type_check(QemuUUID, typeof_field(_state, _field)),  \
218         .set_default = true,                                       \
219         }
220 #define DEFINE_PROP_AUDIODEV(_n, _s, _f) \
221     DEFINE_PROP(_n, _s, _f, qdev_prop_audiodev, QEMUSoundCard)
222 
223 #define DEFINE_PROP_UUID_NODEFAULT(_name, _state, _field) {        \
224         .name      = (_name),                                      \
225         .info      = &qdev_prop_uuid,                              \
226         .offset    = offsetof(_state, _field)                      \
227             + type_check(QemuUUID, typeof_field(_state, _field)),  \
228         }
229 
230 #define DEFINE_PROP_END_OF_LIST()               \
231     {}
232 
233 /* Set properties between creation and init.  */
234 void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
235 void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value);
236 void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
237 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
238 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
239 void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value);
240 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
241 void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value);
242 void qdev_prop_set_chr(DeviceState *dev, const char *name, Chardev *value);
243 void qdev_prop_set_netdev(DeviceState *dev, const char *name, NetClientState *value);
244 void qdev_prop_set_drive(DeviceState *dev, const char *name,
245                          BlockBackend *value, Error **errp);
246 void qdev_prop_set_macaddr(DeviceState *dev, const char *name,
247                            const uint8_t *value);
248 void qdev_prop_set_enum(DeviceState *dev, const char *name, int value);
249 
250 void qdev_prop_register_global(GlobalProperty *prop);
251 int qdev_prop_check_globals(void);
252 void qdev_prop_set_globals(DeviceState *dev);
253 void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev,
254                                     Property *prop, const char *value);
255 
256 /**
257  * qdev_property_add_static:
258  * @dev: Device to add the property to.
259  * @prop: The qdev property definition.
260  *
261  * Add a static QOM property to @dev for qdev property @prop.
262  * On error, store error in @errp.  Static properties access data in a struct.
263  * The type of the QOM property is derived from prop->info.
264  */
265 void qdev_property_add_static(DeviceState *dev, Property *prop);
266 
267 void qdev_alias_all_properties(DeviceState *target, Object *source);
268 
269 /**
270  * @qdev_prop_set_after_realize:
271  * @dev: device
272  * @name: name of property
273  * @errp: indirect pointer to Error to be set
274  * Set the Error object to report that an attempt was made to set a property
275  * on a device after it has already been realized. This is a utility function
276  * which allows property-setter functions to easily report the error in
277  * a friendly format identifying both the device and the property.
278  */
279 void qdev_prop_set_after_realize(DeviceState *dev, const char *name,
280                                  Error **errp);
281 
282 /**
283  * qdev_prop_allow_set_link_before_realize:
284  *
285  * Set the #Error object if an attempt is made to set the link after realize.
286  * This function should be used as the check() argument to
287  * object_property_add_link().
288  */
289 void qdev_prop_allow_set_link_before_realize(const Object *obj,
290                                              const char *name,
291                                              Object *val, Error **errp);
292 
293 #endif
294