root / hw / core / qdev-properties.c @ 49ab747f
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#include "net/net.h" |
---|---|
2 |
#include "hw/qdev.h" |
3 |
#include "qapi/qmp/qerror.h" |
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#include "sysemu/blockdev.h" |
5 |
#include "hw/block/block.h" |
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#include "net/hub.h" |
7 |
#include "qapi/visitor.h" |
8 |
#include "char/char.h" |
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|
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void qdev_prop_set_after_realize(DeviceState *dev, const char *name, |
11 |
Error **errp) |
12 |
{ |
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if (dev->id) {
|
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error_setg(errp, "Attempt to set property '%s' on device '%s' "
|
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"(type '%s') after it was realized", name, dev->id,
|
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object_get_typename(OBJECT(dev))); |
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} else {
|
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error_setg(errp, "Attempt to set property '%s' on anonymous device "
|
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"(type '%s') after it was realized", name,
|
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object_get_typename(OBJECT(dev))); |
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} |
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} |
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|
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void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
|
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{ |
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void *ptr = dev;
|
27 |
ptr += prop->offset; |
28 |
return ptr;
|
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} |
30 |
|
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static void get_enum(Object *obj, Visitor *v, void *opaque, |
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const char *name, Error **errp) |
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{ |
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DeviceState *dev = DEVICE(obj); |
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Property *prop = opaque; |
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int *ptr = qdev_get_prop_ptr(dev, prop);
|
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|
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visit_type_enum(v, ptr, prop->info->enum_table, |
39 |
prop->info->name, prop->name, errp); |
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} |
41 |
|
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static void set_enum(Object *obj, Visitor *v, void *opaque, |
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const char *name, Error **errp) |
44 |
{ |
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DeviceState *dev = DEVICE(obj); |
46 |
Property *prop = opaque; |
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int *ptr = qdev_get_prop_ptr(dev, prop);
|
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|
49 |
if (dev->realized) {
|
50 |
qdev_prop_set_after_realize(dev, name, errp); |
51 |
return;
|
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} |
53 |
|
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visit_type_enum(v, ptr, prop->info->enum_table, |
55 |
prop->info->name, prop->name, errp); |
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} |
57 |
|
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/* Bit */
|
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|
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static uint32_t qdev_get_prop_mask(Property *prop)
|
61 |
{ |
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assert(prop->info == &qdev_prop_bit); |
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return 0x1 << prop->bitnr; |
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} |
65 |
|
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static void bit_prop_set(DeviceState *dev, Property *props, bool val) |
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{ |
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uint32_t *p = qdev_get_prop_ptr(dev, props); |
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uint32_t mask = qdev_get_prop_mask(props); |
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if (val) {
|
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*p |= mask; |
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} else {
|
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*p &= ~mask; |
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} |
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} |
76 |
|
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static int print_bit(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint32_t *p = qdev_get_prop_ptr(dev, prop); |
80 |
return snprintf(dest, len, (*p & qdev_get_prop_mask(prop)) ? "on" : "off"); |
81 |
} |
82 |
|
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static void get_bit(Object *obj, Visitor *v, void *opaque, |
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const char *name, Error **errp) |
85 |
{ |
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DeviceState *dev = DEVICE(obj); |
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Property *prop = opaque; |
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uint32_t *p = qdev_get_prop_ptr(dev, prop); |
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bool value = (*p & qdev_get_prop_mask(prop)) != 0; |
90 |
|
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visit_type_bool(v, &value, name, errp); |
92 |
} |
93 |
|
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static void set_bit(Object *obj, Visitor *v, void *opaque, |
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const char *name, Error **errp) |
96 |
{ |
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DeviceState *dev = DEVICE(obj); |
98 |
Property *prop = opaque; |
99 |
Error *local_err = NULL;
|
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bool value;
|
101 |
|
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if (dev->realized) {
|
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qdev_prop_set_after_realize(dev, name, errp); |
104 |
return;
|
105 |
} |
106 |
|
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visit_type_bool(v, &value, name, &local_err); |
108 |
if (local_err) {
|
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error_propagate(errp, local_err); |
110 |
return;
|
111 |
} |
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bit_prop_set(dev, prop, value); |
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} |
114 |
|
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PropertyInfo qdev_prop_bit = { |
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.name = "boolean",
|
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.legacy_name = "on/off",
|
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.print = print_bit, |
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.get = get_bit, |
120 |
.set = set_bit, |
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}; |
122 |
|
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/* --- 8bit integer --- */
|
124 |
|
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static void get_uint8(Object *obj, Visitor *v, void *opaque, |
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const char *name, Error **errp) |
127 |
{ |
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DeviceState *dev = DEVICE(obj); |
129 |
Property *prop = opaque; |
130 |
uint8_t *ptr = qdev_get_prop_ptr(dev, prop); |
131 |
|
132 |
visit_type_uint8(v, ptr, name, errp); |
133 |
} |
134 |
|
135 |
static void set_uint8(Object *obj, Visitor *v, void *opaque, |
136 |
const char *name, Error **errp) |
137 |
{ |
138 |
DeviceState *dev = DEVICE(obj); |
139 |
Property *prop = opaque; |
140 |
uint8_t *ptr = qdev_get_prop_ptr(dev, prop); |
141 |
|
142 |
if (dev->realized) {
|
143 |
qdev_prop_set_after_realize(dev, name, errp); |
144 |
return;
|
145 |
} |
146 |
|
147 |
visit_type_uint8(v, ptr, name, errp); |
148 |
} |
149 |
|
150 |
PropertyInfo qdev_prop_uint8 = { |
151 |
.name = "uint8",
|
152 |
.get = get_uint8, |
153 |
.set = set_uint8, |
154 |
}; |
155 |
|
156 |
/* --- 8bit hex value --- */
|
157 |
|
158 |
static int parse_hex8(DeviceState *dev, Property *prop, const char *str) |
159 |
{ |
160 |
uint8_t *ptr = qdev_get_prop_ptr(dev, prop); |
161 |
char *end;
|
162 |
|
163 |
if (str[0] != '0' || str[1] != 'x') { |
164 |
return -EINVAL;
|
165 |
} |
166 |
|
167 |
*ptr = strtoul(str, &end, 16);
|
168 |
if ((*end != '\0') || (end == str)) { |
169 |
return -EINVAL;
|
170 |
} |
171 |
|
172 |
return 0; |
173 |
} |
174 |
|
175 |
static int print_hex8(DeviceState *dev, Property *prop, char *dest, size_t len) |
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{ |
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uint8_t *ptr = qdev_get_prop_ptr(dev, prop); |
178 |
return snprintf(dest, len, "0x%" PRIx8, *ptr); |
179 |
} |
180 |
|
181 |
PropertyInfo qdev_prop_hex8 = { |
182 |
.name = "uint8",
|
183 |
.legacy_name = "hex8",
|
184 |
.parse = parse_hex8, |
185 |
.print = print_hex8, |
186 |
.get = get_uint8, |
187 |
.set = set_uint8, |
188 |
}; |
189 |
|
190 |
/* --- 16bit integer --- */
|
191 |
|
192 |
static void get_uint16(Object *obj, Visitor *v, void *opaque, |
193 |
const char *name, Error **errp) |
194 |
{ |
195 |
DeviceState *dev = DEVICE(obj); |
196 |
Property *prop = opaque; |
197 |
uint16_t *ptr = qdev_get_prop_ptr(dev, prop); |
198 |
|
199 |
visit_type_uint16(v, ptr, name, errp); |
200 |
} |
201 |
|
202 |
static void set_uint16(Object *obj, Visitor *v, void *opaque, |
203 |
const char *name, Error **errp) |
204 |
{ |
205 |
DeviceState *dev = DEVICE(obj); |
206 |
Property *prop = opaque; |
207 |
uint16_t *ptr = qdev_get_prop_ptr(dev, prop); |
208 |
|
209 |
if (dev->realized) {
|
210 |
qdev_prop_set_after_realize(dev, name, errp); |
211 |
return;
|
212 |
} |
213 |
|
214 |
visit_type_uint16(v, ptr, name, errp); |
215 |
} |
216 |
|
217 |
PropertyInfo qdev_prop_uint16 = { |
218 |
.name = "uint16",
|
219 |
.get = get_uint16, |
220 |
.set = set_uint16, |
221 |
}; |
222 |
|
223 |
/* --- 32bit integer --- */
|
224 |
|
225 |
static void get_uint32(Object *obj, Visitor *v, void *opaque, |
226 |
const char *name, Error **errp) |
227 |
{ |
228 |
DeviceState *dev = DEVICE(obj); |
229 |
Property *prop = opaque; |
230 |
uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
231 |
|
232 |
visit_type_uint32(v, ptr, name, errp); |
233 |
} |
234 |
|
235 |
static void set_uint32(Object *obj, Visitor *v, void *opaque, |
236 |
const char *name, Error **errp) |
237 |
{ |
238 |
DeviceState *dev = DEVICE(obj); |
239 |
Property *prop = opaque; |
240 |
uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
241 |
|
242 |
if (dev->realized) {
|
243 |
qdev_prop_set_after_realize(dev, name, errp); |
244 |
return;
|
245 |
} |
246 |
|
247 |
visit_type_uint32(v, ptr, name, errp); |
248 |
} |
249 |
|
250 |
static void get_int32(Object *obj, Visitor *v, void *opaque, |
251 |
const char *name, Error **errp) |
252 |
{ |
253 |
DeviceState *dev = DEVICE(obj); |
254 |
Property *prop = opaque; |
255 |
int32_t *ptr = qdev_get_prop_ptr(dev, prop); |
256 |
|
257 |
visit_type_int32(v, ptr, name, errp); |
258 |
} |
259 |
|
260 |
static void set_int32(Object *obj, Visitor *v, void *opaque, |
261 |
const char *name, Error **errp) |
262 |
{ |
263 |
DeviceState *dev = DEVICE(obj); |
264 |
Property *prop = opaque; |
265 |
int32_t *ptr = qdev_get_prop_ptr(dev, prop); |
266 |
|
267 |
if (dev->realized) {
|
268 |
qdev_prop_set_after_realize(dev, name, errp); |
269 |
return;
|
270 |
} |
271 |
|
272 |
visit_type_int32(v, ptr, name, errp); |
273 |
} |
274 |
|
275 |
PropertyInfo qdev_prop_uint32 = { |
276 |
.name = "uint32",
|
277 |
.get = get_uint32, |
278 |
.set = set_uint32, |
279 |
}; |
280 |
|
281 |
PropertyInfo qdev_prop_int32 = { |
282 |
.name = "int32",
|
283 |
.get = get_int32, |
284 |
.set = set_int32, |
285 |
}; |
286 |
|
287 |
/* --- 32bit hex value --- */
|
288 |
|
289 |
static int parse_hex32(DeviceState *dev, Property *prop, const char *str) |
290 |
{ |
291 |
uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
292 |
char *end;
|
293 |
|
294 |
if (str[0] != '0' || str[1] != 'x') { |
295 |
return -EINVAL;
|
296 |
} |
297 |
|
298 |
*ptr = strtoul(str, &end, 16);
|
299 |
if ((*end != '\0') || (end == str)) { |
300 |
return -EINVAL;
|
301 |
} |
302 |
|
303 |
return 0; |
304 |
} |
305 |
|
306 |
static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len) |
307 |
{ |
308 |
uint32_t *ptr = qdev_get_prop_ptr(dev, prop); |
309 |
return snprintf(dest, len, "0x%" PRIx32, *ptr); |
310 |
} |
311 |
|
312 |
PropertyInfo qdev_prop_hex32 = { |
313 |
.name = "uint32",
|
314 |
.legacy_name = "hex32",
|
315 |
.parse = parse_hex32, |
316 |
.print = print_hex32, |
317 |
.get = get_uint32, |
318 |
.set = set_uint32, |
319 |
}; |
320 |
|
321 |
/* --- 64bit integer --- */
|
322 |
|
323 |
static void get_uint64(Object *obj, Visitor *v, void *opaque, |
324 |
const char *name, Error **errp) |
325 |
{ |
326 |
DeviceState *dev = DEVICE(obj); |
327 |
Property *prop = opaque; |
328 |
uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
329 |
|
330 |
visit_type_uint64(v, ptr, name, errp); |
331 |
} |
332 |
|
333 |
static void set_uint64(Object *obj, Visitor *v, void *opaque, |
334 |
const char *name, Error **errp) |
335 |
{ |
336 |
DeviceState *dev = DEVICE(obj); |
337 |
Property *prop = opaque; |
338 |
uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
339 |
|
340 |
if (dev->realized) {
|
341 |
qdev_prop_set_after_realize(dev, name, errp); |
342 |
return;
|
343 |
} |
344 |
|
345 |
visit_type_uint64(v, ptr, name, errp); |
346 |
} |
347 |
|
348 |
PropertyInfo qdev_prop_uint64 = { |
349 |
.name = "uint64",
|
350 |
.get = get_uint64, |
351 |
.set = set_uint64, |
352 |
}; |
353 |
|
354 |
/* --- 64bit hex value --- */
|
355 |
|
356 |
static int parse_hex64(DeviceState *dev, Property *prop, const char *str) |
357 |
{ |
358 |
uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
359 |
char *end;
|
360 |
|
361 |
if (str[0] != '0' || str[1] != 'x') { |
362 |
return -EINVAL;
|
363 |
} |
364 |
|
365 |
*ptr = strtoull(str, &end, 16);
|
366 |
if ((*end != '\0') || (end == str)) { |
367 |
return -EINVAL;
|
368 |
} |
369 |
|
370 |
return 0; |
371 |
} |
372 |
|
373 |
static int print_hex64(DeviceState *dev, Property *prop, char *dest, size_t len) |
374 |
{ |
375 |
uint64_t *ptr = qdev_get_prop_ptr(dev, prop); |
376 |
return snprintf(dest, len, "0x%" PRIx64, *ptr); |
377 |
} |
378 |
|
379 |
PropertyInfo qdev_prop_hex64 = { |
380 |
.name = "uint64",
|
381 |
.legacy_name = "hex64",
|
382 |
.parse = parse_hex64, |
383 |
.print = print_hex64, |
384 |
.get = get_uint64, |
385 |
.set = set_uint64, |
386 |
}; |
387 |
|
388 |
/* --- string --- */
|
389 |
|
390 |
static void release_string(Object *obj, const char *name, void *opaque) |
391 |
{ |
392 |
Property *prop = opaque; |
393 |
g_free(*(char **)qdev_get_prop_ptr(DEVICE(obj), prop));
|
394 |
} |
395 |
|
396 |
static int print_string(DeviceState *dev, Property *prop, char *dest, |
397 |
size_t len) |
398 |
{ |
399 |
char **ptr = qdev_get_prop_ptr(dev, prop);
|
400 |
if (!*ptr) {
|
401 |
return snprintf(dest, len, "<null>"); |
402 |
} |
403 |
return snprintf(dest, len, "\"%s\"", *ptr); |
404 |
} |
405 |
|
406 |
static void get_string(Object *obj, Visitor *v, void *opaque, |
407 |
const char *name, Error **errp) |
408 |
{ |
409 |
DeviceState *dev = DEVICE(obj); |
410 |
Property *prop = opaque; |
411 |
char **ptr = qdev_get_prop_ptr(dev, prop);
|
412 |
|
413 |
if (!*ptr) {
|
414 |
char *str = (char *)""; |
415 |
visit_type_str(v, &str, name, errp); |
416 |
} else {
|
417 |
visit_type_str(v, ptr, name, errp); |
418 |
} |
419 |
} |
420 |
|
421 |
static void set_string(Object *obj, Visitor *v, void *opaque, |
422 |
const char *name, Error **errp) |
423 |
{ |
424 |
DeviceState *dev = DEVICE(obj); |
425 |
Property *prop = opaque; |
426 |
char **ptr = qdev_get_prop_ptr(dev, prop);
|
427 |
Error *local_err = NULL;
|
428 |
char *str;
|
429 |
|
430 |
if (dev->realized) {
|
431 |
qdev_prop_set_after_realize(dev, name, errp); |
432 |
return;
|
433 |
} |
434 |
|
435 |
visit_type_str(v, &str, name, &local_err); |
436 |
if (local_err) {
|
437 |
error_propagate(errp, local_err); |
438 |
return;
|
439 |
} |
440 |
if (*ptr) {
|
441 |
g_free(*ptr); |
442 |
} |
443 |
*ptr = str; |
444 |
} |
445 |
|
446 |
PropertyInfo qdev_prop_string = { |
447 |
.name = "string",
|
448 |
.print = print_string, |
449 |
.release = release_string, |
450 |
.get = get_string, |
451 |
.set = set_string, |
452 |
}; |
453 |
|
454 |
/* --- pointer --- */
|
455 |
|
456 |
/* Not a proper property, just for dirty hacks. TODO Remove it! */
|
457 |
PropertyInfo qdev_prop_ptr = { |
458 |
.name = "ptr",
|
459 |
}; |
460 |
|
461 |
/* --- mac address --- */
|
462 |
|
463 |
/*
|
464 |
* accepted syntax versions:
|
465 |
* 01:02:03:04:05:06
|
466 |
* 01-02-03-04-05-06
|
467 |
*/
|
468 |
static void get_mac(Object *obj, Visitor *v, void *opaque, |
469 |
const char *name, Error **errp) |
470 |
{ |
471 |
DeviceState *dev = DEVICE(obj); |
472 |
Property *prop = opaque; |
473 |
MACAddr *mac = qdev_get_prop_ptr(dev, prop); |
474 |
char buffer[2 * 6 + 5 + 1]; |
475 |
char *p = buffer;
|
476 |
|
477 |
snprintf(buffer, sizeof(buffer), "%02x:%02x:%02x:%02x:%02x:%02x", |
478 |
mac->a[0], mac->a[1], mac->a[2], |
479 |
mac->a[3], mac->a[4], mac->a[5]); |
480 |
|
481 |
visit_type_str(v, &p, name, errp); |
482 |
} |
483 |
|
484 |
static void set_mac(Object *obj, Visitor *v, void *opaque, |
485 |
const char *name, Error **errp) |
486 |
{ |
487 |
DeviceState *dev = DEVICE(obj); |
488 |
Property *prop = opaque; |
489 |
MACAddr *mac = qdev_get_prop_ptr(dev, prop); |
490 |
Error *local_err = NULL;
|
491 |
int i, pos;
|
492 |
char *str, *p;
|
493 |
|
494 |
if (dev->realized) {
|
495 |
qdev_prop_set_after_realize(dev, name, errp); |
496 |
return;
|
497 |
} |
498 |
|
499 |
visit_type_str(v, &str, name, &local_err); |
500 |
if (local_err) {
|
501 |
error_propagate(errp, local_err); |
502 |
return;
|
503 |
} |
504 |
|
505 |
for (i = 0, pos = 0; i < 6; i++, pos += 3) { |
506 |
if (!qemu_isxdigit(str[pos])) {
|
507 |
goto inval;
|
508 |
} |
509 |
if (!qemu_isxdigit(str[pos+1])) { |
510 |
goto inval;
|
511 |
} |
512 |
if (i == 5) { |
513 |
if (str[pos+2] != '\0') { |
514 |
goto inval;
|
515 |
} |
516 |
} else {
|
517 |
if (str[pos+2] != ':' && str[pos+2] != '-') { |
518 |
goto inval;
|
519 |
} |
520 |
} |
521 |
mac->a[i] = strtol(str+pos, &p, 16);
|
522 |
} |
523 |
g_free(str); |
524 |
return;
|
525 |
|
526 |
inval:
|
527 |
error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str); |
528 |
g_free(str); |
529 |
} |
530 |
|
531 |
PropertyInfo qdev_prop_macaddr = { |
532 |
.name = "macaddr",
|
533 |
.get = get_mac, |
534 |
.set = set_mac, |
535 |
}; |
536 |
|
537 |
/* --- lost tick policy --- */
|
538 |
|
539 |
static const char *lost_tick_policy_table[LOST_TICK_MAX+1] = { |
540 |
[LOST_TICK_DISCARD] = "discard",
|
541 |
[LOST_TICK_DELAY] = "delay",
|
542 |
[LOST_TICK_MERGE] = "merge",
|
543 |
[LOST_TICK_SLEW] = "slew",
|
544 |
[LOST_TICK_MAX] = NULL,
|
545 |
}; |
546 |
|
547 |
QEMU_BUILD_BUG_ON(sizeof(LostTickPolicy) != sizeof(int)); |
548 |
|
549 |
PropertyInfo qdev_prop_losttickpolicy = { |
550 |
.name = "LostTickPolicy",
|
551 |
.enum_table = lost_tick_policy_table, |
552 |
.get = get_enum, |
553 |
.set = set_enum, |
554 |
}; |
555 |
|
556 |
/* --- BIOS CHS translation */
|
557 |
|
558 |
static const char *bios_chs_trans_table[] = { |
559 |
[BIOS_ATA_TRANSLATION_AUTO] = "auto",
|
560 |
[BIOS_ATA_TRANSLATION_NONE] = "none",
|
561 |
[BIOS_ATA_TRANSLATION_LBA] = "lba",
|
562 |
}; |
563 |
|
564 |
PropertyInfo qdev_prop_bios_chs_trans = { |
565 |
.name = "bios-chs-trans",
|
566 |
.enum_table = bios_chs_trans_table, |
567 |
.get = get_enum, |
568 |
.set = set_enum, |
569 |
}; |
570 |
|
571 |
/* --- pci address --- */
|
572 |
|
573 |
/*
|
574 |
* bus-local address, i.e. "$slot" or "$slot.$fn"
|
575 |
*/
|
576 |
static void set_pci_devfn(Object *obj, Visitor *v, void *opaque, |
577 |
const char *name, Error **errp) |
578 |
{ |
579 |
DeviceState *dev = DEVICE(obj); |
580 |
Property *prop = opaque; |
581 |
int32_t value, *ptr = qdev_get_prop_ptr(dev, prop); |
582 |
unsigned int slot, fn, n; |
583 |
Error *local_err = NULL;
|
584 |
char *str;
|
585 |
|
586 |
if (dev->realized) {
|
587 |
qdev_prop_set_after_realize(dev, name, errp); |
588 |
return;
|
589 |
} |
590 |
|
591 |
visit_type_str(v, &str, name, &local_err); |
592 |
if (local_err) {
|
593 |
error_free(local_err); |
594 |
local_err = NULL;
|
595 |
visit_type_int32(v, &value, name, &local_err); |
596 |
if (local_err) {
|
597 |
error_propagate(errp, local_err); |
598 |
} else if (value < -1 || value > 255) { |
599 |
error_set(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
|
600 |
"pci_devfn");
|
601 |
} else {
|
602 |
*ptr = value; |
603 |
} |
604 |
return;
|
605 |
} |
606 |
|
607 |
if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) { |
608 |
fn = 0;
|
609 |
if (sscanf(str, "%x%n", &slot, &n) != 1) { |
610 |
goto invalid;
|
611 |
} |
612 |
} |
613 |
if (str[n] != '\0' || fn > 7 || slot > 31) { |
614 |
goto invalid;
|
615 |
} |
616 |
*ptr = slot << 3 | fn;
|
617 |
g_free(str); |
618 |
return;
|
619 |
|
620 |
invalid:
|
621 |
error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str); |
622 |
g_free(str); |
623 |
} |
624 |
|
625 |
static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, |
626 |
size_t len) |
627 |
{ |
628 |
int32_t *ptr = qdev_get_prop_ptr(dev, prop); |
629 |
|
630 |
if (*ptr == -1) { |
631 |
return snprintf(dest, len, "<unset>"); |
632 |
} else {
|
633 |
return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7); |
634 |
} |
635 |
} |
636 |
|
637 |
PropertyInfo qdev_prop_pci_devfn = { |
638 |
.name = "int32",
|
639 |
.legacy_name = "pci-devfn",
|
640 |
.print = print_pci_devfn, |
641 |
.get = get_int32, |
642 |
.set = set_pci_devfn, |
643 |
}; |
644 |
|
645 |
/* --- blocksize --- */
|
646 |
|
647 |
static void set_blocksize(Object *obj, Visitor *v, void *opaque, |
648 |
const char *name, Error **errp) |
649 |
{ |
650 |
DeviceState *dev = DEVICE(obj); |
651 |
Property *prop = opaque; |
652 |
uint16_t value, *ptr = qdev_get_prop_ptr(dev, prop); |
653 |
Error *local_err = NULL;
|
654 |
const int64_t min = 512; |
655 |
const int64_t max = 32768; |
656 |
|
657 |
if (dev->realized) {
|
658 |
qdev_prop_set_after_realize(dev, name, errp); |
659 |
return;
|
660 |
} |
661 |
|
662 |
visit_type_uint16(v, &value, name, &local_err); |
663 |
if (local_err) {
|
664 |
error_propagate(errp, local_err); |
665 |
return;
|
666 |
} |
667 |
if (value < min || value > max) {
|
668 |
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, |
669 |
dev->id?:"", name, (int64_t)value, min, max);
|
670 |
return;
|
671 |
} |
672 |
|
673 |
/* We rely on power-of-2 blocksizes for bitmasks */
|
674 |
if ((value & (value - 1)) != 0) { |
675 |
error_set(errp, QERR_PROPERTY_VALUE_NOT_POWER_OF_2, |
676 |
dev->id?:"", name, (int64_t)value);
|
677 |
return;
|
678 |
} |
679 |
|
680 |
*ptr = value; |
681 |
} |
682 |
|
683 |
PropertyInfo qdev_prop_blocksize = { |
684 |
.name = "blocksize",
|
685 |
.get = get_uint16, |
686 |
.set = set_blocksize, |
687 |
}; |
688 |
|
689 |
/* --- pci host address --- */
|
690 |
|
691 |
static void get_pci_host_devaddr(Object *obj, Visitor *v, void *opaque, |
692 |
const char *name, Error **errp) |
693 |
{ |
694 |
DeviceState *dev = DEVICE(obj); |
695 |
Property *prop = opaque; |
696 |
PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop); |
697 |
char buffer[] = "xxxx:xx:xx.x"; |
698 |
char *p = buffer;
|
699 |
int rc = 0; |
700 |
|
701 |
rc = snprintf(buffer, sizeof(buffer), "%04x:%02x:%02x.%d", |
702 |
addr->domain, addr->bus, addr->slot, addr->function); |
703 |
assert(rc == sizeof(buffer) - 1); |
704 |
|
705 |
visit_type_str(v, &p, name, errp); |
706 |
} |
707 |
|
708 |
/*
|
709 |
* Parse [<domain>:]<bus>:<slot>.<func>
|
710 |
* if <domain> is not supplied, it's assumed to be 0.
|
711 |
*/
|
712 |
static void set_pci_host_devaddr(Object *obj, Visitor *v, void *opaque, |
713 |
const char *name, Error **errp) |
714 |
{ |
715 |
DeviceState *dev = DEVICE(obj); |
716 |
Property *prop = opaque; |
717 |
PCIHostDeviceAddress *addr = qdev_get_prop_ptr(dev, prop); |
718 |
Error *local_err = NULL;
|
719 |
char *str, *p;
|
720 |
char *e;
|
721 |
unsigned long val; |
722 |
unsigned long dom = 0, bus = 0; |
723 |
unsigned int slot = 0, func = 0; |
724 |
|
725 |
if (dev->realized) {
|
726 |
qdev_prop_set_after_realize(dev, name, errp); |
727 |
return;
|
728 |
} |
729 |
|
730 |
visit_type_str(v, &str, name, &local_err); |
731 |
if (local_err) {
|
732 |
error_propagate(errp, local_err); |
733 |
return;
|
734 |
} |
735 |
|
736 |
p = str; |
737 |
val = strtoul(p, &e, 16);
|
738 |
if (e == p || *e != ':') { |
739 |
goto inval;
|
740 |
} |
741 |
bus = val; |
742 |
|
743 |
p = e + 1;
|
744 |
val = strtoul(p, &e, 16);
|
745 |
if (e == p) {
|
746 |
goto inval;
|
747 |
} |
748 |
if (*e == ':') { |
749 |
dom = bus; |
750 |
bus = val; |
751 |
p = e + 1;
|
752 |
val = strtoul(p, &e, 16);
|
753 |
if (e == p) {
|
754 |
goto inval;
|
755 |
} |
756 |
} |
757 |
slot = val; |
758 |
|
759 |
if (*e != '.') { |
760 |
goto inval;
|
761 |
} |
762 |
p = e + 1;
|
763 |
val = strtoul(p, &e, 10);
|
764 |
if (e == p) {
|
765 |
goto inval;
|
766 |
} |
767 |
func = val; |
768 |
|
769 |
if (dom > 0xffff || bus > 0xff || slot > 0x1f || func > 7) { |
770 |
goto inval;
|
771 |
} |
772 |
|
773 |
if (*e) {
|
774 |
goto inval;
|
775 |
} |
776 |
|
777 |
addr->domain = dom; |
778 |
addr->bus = bus; |
779 |
addr->slot = slot; |
780 |
addr->function = func; |
781 |
|
782 |
g_free(str); |
783 |
return;
|
784 |
|
785 |
inval:
|
786 |
error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str); |
787 |
g_free(str); |
788 |
} |
789 |
|
790 |
PropertyInfo qdev_prop_pci_host_devaddr = { |
791 |
.name = "pci-host-devaddr",
|
792 |
.get = get_pci_host_devaddr, |
793 |
.set = set_pci_host_devaddr, |
794 |
}; |
795 |
|
796 |
/* --- support for array properties --- */
|
797 |
|
798 |
/* Used as an opaque for the object properties we add for each
|
799 |
* array element. Note that the struct Property must be first
|
800 |
* in the struct so that a pointer to this works as the opaque
|
801 |
* for the underlying element's property hooks as well as for
|
802 |
* our own release callback.
|
803 |
*/
|
804 |
typedef struct { |
805 |
struct Property prop;
|
806 |
char *propname;
|
807 |
ObjectPropertyRelease *release; |
808 |
} ArrayElementProperty; |
809 |
|
810 |
/* object property release callback for array element properties:
|
811 |
* we call the underlying element's property release hook, and
|
812 |
* then free the memory we allocated when we added the property.
|
813 |
*/
|
814 |
static void array_element_release(Object *obj, const char *name, void *opaque) |
815 |
{ |
816 |
ArrayElementProperty *p = opaque; |
817 |
if (p->release) {
|
818 |
p->release(obj, name, opaque); |
819 |
} |
820 |
g_free(p->propname); |
821 |
g_free(p); |
822 |
} |
823 |
|
824 |
static void set_prop_arraylen(Object *obj, Visitor *v, void *opaque, |
825 |
const char *name, Error **errp) |
826 |
{ |
827 |
/* Setter for the property which defines the length of a
|
828 |
* variable-sized property array. As well as actually setting the
|
829 |
* array-length field in the device struct, we have to create the
|
830 |
* array itself and dynamically add the corresponding properties.
|
831 |
*/
|
832 |
DeviceState *dev = DEVICE(obj); |
833 |
Property *prop = opaque; |
834 |
uint32_t *alenptr = qdev_get_prop_ptr(dev, prop); |
835 |
void **arrayptr = (void *)dev + prop->arrayoffset; |
836 |
void *eltptr;
|
837 |
const char *arrayname; |
838 |
int i;
|
839 |
|
840 |
if (dev->realized) {
|
841 |
qdev_prop_set_after_realize(dev, name, errp); |
842 |
return;
|
843 |
} |
844 |
if (*alenptr) {
|
845 |
error_setg(errp, "array size property %s may not be set more than once",
|
846 |
name); |
847 |
return;
|
848 |
} |
849 |
visit_type_uint32(v, alenptr, name, errp); |
850 |
if (error_is_set(errp)) {
|
851 |
return;
|
852 |
} |
853 |
if (!*alenptr) {
|
854 |
return;
|
855 |
} |
856 |
|
857 |
/* DEFINE_PROP_ARRAY guarantees that name should start with this prefix;
|
858 |
* strip it off so we can get the name of the array itself.
|
859 |
*/
|
860 |
assert(strncmp(name, PROP_ARRAY_LEN_PREFIX, |
861 |
strlen(PROP_ARRAY_LEN_PREFIX)) == 0);
|
862 |
arrayname = name + strlen(PROP_ARRAY_LEN_PREFIX); |
863 |
|
864 |
/* Note that it is the responsibility of the individual device's deinit
|
865 |
* to free the array proper.
|
866 |
*/
|
867 |
*arrayptr = eltptr = g_malloc0(*alenptr * prop->arrayfieldsize); |
868 |
for (i = 0; i < *alenptr; i++, eltptr += prop->arrayfieldsize) { |
869 |
char *propname = g_strdup_printf("%s[%d]", arrayname, i); |
870 |
ArrayElementProperty *arrayprop = g_new0(ArrayElementProperty, 1);
|
871 |
arrayprop->release = prop->arrayinfo->release; |
872 |
arrayprop->propname = propname; |
873 |
arrayprop->prop.info = prop->arrayinfo; |
874 |
arrayprop->prop.name = propname; |
875 |
/* This ugly piece of pointer arithmetic sets up the offset so
|
876 |
* that when the underlying get/set hooks call qdev_get_prop_ptr
|
877 |
* they get the right answer despite the array element not actually
|
878 |
* being inside the device struct.
|
879 |
*/
|
880 |
arrayprop->prop.offset = eltptr - (void *)dev;
|
881 |
assert(qdev_get_prop_ptr(dev, &arrayprop->prop) == eltptr); |
882 |
object_property_add(obj, propname, |
883 |
arrayprop->prop.info->name, |
884 |
arrayprop->prop.info->get, |
885 |
arrayprop->prop.info->set, |
886 |
array_element_release, |
887 |
arrayprop, errp); |
888 |
if (error_is_set(errp)) {
|
889 |
return;
|
890 |
} |
891 |
} |
892 |
} |
893 |
|
894 |
PropertyInfo qdev_prop_arraylen = { |
895 |
.name = "uint32",
|
896 |
.get = get_uint32, |
897 |
.set = set_prop_arraylen, |
898 |
}; |
899 |
|
900 |
/* --- public helpers --- */
|
901 |
|
902 |
static Property *qdev_prop_walk(Property *props, const char *name) |
903 |
{ |
904 |
if (!props) {
|
905 |
return NULL; |
906 |
} |
907 |
while (props->name) {
|
908 |
if (strcmp(props->name, name) == 0) { |
909 |
return props;
|
910 |
} |
911 |
props++; |
912 |
} |
913 |
return NULL; |
914 |
} |
915 |
|
916 |
static Property *qdev_prop_find(DeviceState *dev, const char *name) |
917 |
{ |
918 |
ObjectClass *class; |
919 |
Property *prop; |
920 |
|
921 |
/* device properties */
|
922 |
class = object_get_class(OBJECT(dev)); |
923 |
do {
|
924 |
prop = qdev_prop_walk(DEVICE_CLASS(class)->props, name); |
925 |
if (prop) {
|
926 |
return prop;
|
927 |
} |
928 |
class = object_class_get_parent(class); |
929 |
} while (class != object_class_by_name(TYPE_DEVICE));
|
930 |
|
931 |
return NULL; |
932 |
} |
933 |
|
934 |
void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev, |
935 |
Property *prop, const char *value) |
936 |
{ |
937 |
switch (ret) {
|
938 |
case -EEXIST:
|
939 |
error_set(errp, QERR_PROPERTY_VALUE_IN_USE, |
940 |
object_get_typename(OBJECT(dev)), prop->name, value); |
941 |
break;
|
942 |
default:
|
943 |
case -EINVAL:
|
944 |
error_set(errp, QERR_PROPERTY_VALUE_BAD, |
945 |
object_get_typename(OBJECT(dev)), prop->name, value); |
946 |
break;
|
947 |
case -ENOENT:
|
948 |
error_set(errp, QERR_PROPERTY_VALUE_NOT_FOUND, |
949 |
object_get_typename(OBJECT(dev)), prop->name, value); |
950 |
break;
|
951 |
case 0: |
952 |
break;
|
953 |
} |
954 |
} |
955 |
|
956 |
int qdev_prop_parse(DeviceState *dev, const char *name, const char *value) |
957 |
{ |
958 |
char *legacy_name;
|
959 |
Error *err = NULL;
|
960 |
|
961 |
legacy_name = g_strdup_printf("legacy-%s", name);
|
962 |
if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) { |
963 |
object_property_parse(OBJECT(dev), value, legacy_name, &err); |
964 |
} else {
|
965 |
object_property_parse(OBJECT(dev), value, name, &err); |
966 |
} |
967 |
g_free(legacy_name); |
968 |
|
969 |
if (err) {
|
970 |
qerror_report_err(err); |
971 |
error_free(err); |
972 |
return -1; |
973 |
} |
974 |
return 0; |
975 |
} |
976 |
|
977 |
void qdev_prop_set_bit(DeviceState *dev, const char *name, bool value) |
978 |
{ |
979 |
Error *errp = NULL;
|
980 |
object_property_set_bool(OBJECT(dev), value, name, &errp); |
981 |
assert_no_error(errp); |
982 |
} |
983 |
|
984 |
void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value) |
985 |
{ |
986 |
Error *errp = NULL;
|
987 |
object_property_set_int(OBJECT(dev), value, name, &errp); |
988 |
assert_no_error(errp); |
989 |
} |
990 |
|
991 |
void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value) |
992 |
{ |
993 |
Error *errp = NULL;
|
994 |
object_property_set_int(OBJECT(dev), value, name, &errp); |
995 |
assert_no_error(errp); |
996 |
} |
997 |
|
998 |
void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value) |
999 |
{ |
1000 |
Error *errp = NULL;
|
1001 |
object_property_set_int(OBJECT(dev), value, name, &errp); |
1002 |
assert_no_error(errp); |
1003 |
} |
1004 |
|
1005 |
void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value) |
1006 |
{ |
1007 |
Error *errp = NULL;
|
1008 |
object_property_set_int(OBJECT(dev), value, name, &errp); |
1009 |
assert_no_error(errp); |
1010 |
} |
1011 |
|
1012 |
void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value) |
1013 |
{ |
1014 |
Error *errp = NULL;
|
1015 |
object_property_set_int(OBJECT(dev), value, name, &errp); |
1016 |
assert_no_error(errp); |
1017 |
} |
1018 |
|
1019 |
void qdev_prop_set_string(DeviceState *dev, const char *name, const char *value) |
1020 |
{ |
1021 |
Error *errp = NULL;
|
1022 |
object_property_set_str(OBJECT(dev), value, name, &errp); |
1023 |
assert_no_error(errp); |
1024 |
} |
1025 |
|
1026 |
void qdev_prop_set_macaddr(DeviceState *dev, const char *name, uint8_t *value) |
1027 |
{ |
1028 |
Error *errp = NULL;
|
1029 |
char str[2 * 6 + 5 + 1]; |
1030 |
snprintf(str, sizeof(str), "%02x:%02x:%02x:%02x:%02x:%02x", |
1031 |
value[0], value[1], value[2], value[3], value[4], value[5]); |
1032 |
|
1033 |
object_property_set_str(OBJECT(dev), str, name, &errp); |
1034 |
assert_no_error(errp); |
1035 |
} |
1036 |
|
1037 |
void qdev_prop_set_enum(DeviceState *dev, const char *name, int value) |
1038 |
{ |
1039 |
Property *prop; |
1040 |
Error *errp = NULL;
|
1041 |
|
1042 |
prop = qdev_prop_find(dev, name); |
1043 |
object_property_set_str(OBJECT(dev), prop->info->enum_table[value], |
1044 |
name, &errp); |
1045 |
assert_no_error(errp); |
1046 |
} |
1047 |
|
1048 |
void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value) |
1049 |
{ |
1050 |
Property *prop; |
1051 |
void **ptr;
|
1052 |
|
1053 |
prop = qdev_prop_find(dev, name); |
1054 |
assert(prop && prop->info == &qdev_prop_ptr); |
1055 |
ptr = qdev_get_prop_ptr(dev, prop); |
1056 |
*ptr = value; |
1057 |
} |
1058 |
|
1059 |
static QTAILQ_HEAD(, GlobalProperty) global_props =
|
1060 |
QTAILQ_HEAD_INITIALIZER(global_props); |
1061 |
|
1062 |
void qdev_prop_register_global(GlobalProperty *prop)
|
1063 |
{ |
1064 |
QTAILQ_INSERT_TAIL(&global_props, prop, next); |
1065 |
} |
1066 |
|
1067 |
void qdev_prop_register_global_list(GlobalProperty *props)
|
1068 |
{ |
1069 |
int i;
|
1070 |
|
1071 |
for (i = 0; props[i].driver != NULL; i++) { |
1072 |
qdev_prop_register_global(props+i); |
1073 |
} |
1074 |
} |
1075 |
|
1076 |
void qdev_prop_set_globals(DeviceState *dev)
|
1077 |
{ |
1078 |
ObjectClass *class = object_get_class(OBJECT(dev)); |
1079 |
|
1080 |
do {
|
1081 |
GlobalProperty *prop; |
1082 |
QTAILQ_FOREACH(prop, &global_props, next) { |
1083 |
if (strcmp(object_class_get_name(class), prop->driver) != 0) { |
1084 |
continue;
|
1085 |
} |
1086 |
if (qdev_prop_parse(dev, prop->property, prop->value) != 0) { |
1087 |
exit(1);
|
1088 |
} |
1089 |
} |
1090 |
class = object_class_get_parent(class); |
1091 |
} while (class);
|
1092 |
} |