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Commit | Line | Data |
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ee46d8a5 AL |
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 | |
61f3c91a | 9 | * version 2.1 of the License, or (at your option) any later version. |
ee46d8a5 AL |
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 | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
d38ea87a | 20 | #include "qemu/osdep.h" |
2f7bd829 | 21 | #include "hw/sysbus.h" |
d94bd092 | 22 | #include "monitor/hmp.h" |
83c9089e | 23 | #include "monitor/monitor.h" |
b4a42f81 | 24 | #include "monitor/qdev.h" |
9c17d615 | 25 | #include "sysemu/arch_init.h" |
e688df6b | 26 | #include "qapi/error.h" |
c577ff62 | 27 | #include "qapi/qapi-commands-qdev.h" |
164dafd1 | 28 | #include "qapi/qmp/dispatch.h" |
452fcdbc | 29 | #include "qapi/qmp/qdict.h" |
cc7a8ea7 | 30 | #include "qapi/qmp/qerror.h" |
c34efece KW |
31 | #include "qapi/qmp/qstring.h" |
32 | #include "qapi/qobject-input-visitor.h" | |
1de7afc9 | 33 | #include "qemu/config-file.h" |
d49b6836 | 34 | #include "qemu/error-report.h" |
f348b6d1 | 35 | #include "qemu/help_option.h" |
922a01a0 | 36 | #include "qemu/option.h" |
8acb2a75 | 37 | #include "qemu/qemu-print.h" |
f3a85056 | 38 | #include "qemu/option_int.h" |
9680caee | 39 | #include "sysemu/block-backend.h" |
c4b63b7c | 40 | #include "migration/misc.h" |
f3a85056 | 41 | #include "migration/migration.h" |
e1043d67 | 42 | #include "qemu/cutils.h" |
d3fd6e73 | 43 | #include "hw/qdev-properties.h" |
9f2ff99c | 44 | #include "hw/clock.h" |
312e1b1f | 45 | #include "hw/boards.h" |
ee46d8a5 AL |
46 | |
47 | /* | |
48 | * Aliases were a bad idea from the start. Let's keep them | |
49 | * from spreading further. | |
50 | */ | |
51 | typedef struct QDevAlias | |
52 | { | |
53 | const char *typename; | |
54 | const char *alias; | |
5f629d94 | 55 | uint32_t arch_mask; |
ee46d8a5 AL |
56 | } QDevAlias; |
57 | ||
3669282c PM |
58 | /* default virtio transport per architecture */ |
59 | #define QEMU_ARCH_VIRTIO_PCI (QEMU_ARCH_ALPHA | QEMU_ARCH_ARM | \ | |
60 | QEMU_ARCH_HPPA | QEMU_ARCH_I386 | \ | |
61 | QEMU_ARCH_MIPS | QEMU_ARCH_PPC | \ | |
62 | QEMU_ARCH_RISCV | QEMU_ARCH_SH4 | \ | |
256309e1 XY |
63 | QEMU_ARCH_SPARC | QEMU_ARCH_XTENSA | \ |
64 | QEMU_ARCH_LOONGARCH) | |
3669282c PM |
65 | #define QEMU_ARCH_VIRTIO_CCW (QEMU_ARCH_S390X) |
66 | #define QEMU_ARCH_VIRTIO_MMIO (QEMU_ARCH_M68K) | |
67 | ||
36e99168 | 68 | /* Please keep this table sorted by typename. */ |
ee46d8a5 | 69 | static const QDevAlias qdev_alias_table[] = { |
2957f5ad | 70 | { "AC97", "ac97" }, /* -soundhw name */ |
36e99168 | 71 | { "e1000", "e1000-82540em" }, |
0e933feb | 72 | { "ES1370", "es1370" }, /* -soundhw name */ |
36e99168 | 73 | { "ich9-ahci", "ahci" }, |
36e99168 | 74 | { "lsi53c895a", "lsi" }, |
4c5806a5 | 75 | { "virtio-9p-device", "virtio-9p", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
76 | { "virtio-9p-ccw", "virtio-9p", QEMU_ARCH_VIRTIO_CCW }, |
77 | { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 78 | { "virtio-balloon-device", "virtio-balloon", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
79 | { "virtio-balloon-ccw", "virtio-balloon", QEMU_ARCH_VIRTIO_CCW }, |
80 | { "virtio-balloon-pci", "virtio-balloon", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 81 | { "virtio-blk-device", "virtio-blk", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
82 | { "virtio-blk-ccw", "virtio-blk", QEMU_ARCH_VIRTIO_CCW }, |
83 | { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 84 | { "virtio-gpu-device", "virtio-gpu", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
85 | { "virtio-gpu-ccw", "virtio-gpu", QEMU_ARCH_VIRTIO_CCW }, |
86 | { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_VIRTIO_PCI }, | |
f4ba24b3 AO |
87 | { "virtio-gpu-gl-device", "virtio-gpu-gl", QEMU_ARCH_VIRTIO_MMIO }, |
88 | { "virtio-gpu-gl-pci", "virtio-gpu-gl", QEMU_ARCH_VIRTIO_PCI }, | |
8e7b21ca GS |
89 | { "virtio-gpu-rutabaga-device", "virtio-gpu-rutabaga", |
90 | QEMU_ARCH_VIRTIO_MMIO }, | |
91 | { "virtio-gpu-rutabaga-pci", "virtio-gpu-rutabaga", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 92 | { "virtio-input-host-device", "virtio-input-host", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
93 | { "virtio-input-host-ccw", "virtio-input-host", QEMU_ARCH_VIRTIO_CCW }, |
94 | { "virtio-input-host-pci", "virtio-input-host", QEMU_ARCH_VIRTIO_PCI }, | |
95 | { "virtio-iommu-pci", "virtio-iommu", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 96 | { "virtio-keyboard-device", "virtio-keyboard", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
97 | { "virtio-keyboard-ccw", "virtio-keyboard", QEMU_ARCH_VIRTIO_CCW }, |
98 | { "virtio-keyboard-pci", "virtio-keyboard", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 99 | { "virtio-mouse-device", "virtio-mouse", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
100 | { "virtio-mouse-ccw", "virtio-mouse", QEMU_ARCH_VIRTIO_CCW }, |
101 | { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 102 | { "virtio-net-device", "virtio-net", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
103 | { "virtio-net-ccw", "virtio-net", QEMU_ARCH_VIRTIO_CCW }, |
104 | { "virtio-net-pci", "virtio-net", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 105 | { "virtio-rng-device", "virtio-rng", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
106 | { "virtio-rng-ccw", "virtio-rng", QEMU_ARCH_VIRTIO_CCW }, |
107 | { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 108 | { "virtio-scsi-device", "virtio-scsi", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
109 | { "virtio-scsi-ccw", "virtio-scsi", QEMU_ARCH_VIRTIO_CCW }, |
110 | { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_VIRTIO_PCI }, | |
4c5806a5 | 111 | { "virtio-serial-device", "virtio-serial", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
112 | { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_VIRTIO_CCW }, |
113 | { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_VIRTIO_PCI}, | |
2880e676 | 114 | { "virtio-sound-device", "virtio-sound", QEMU_ARCH_VIRTIO_MMIO }, |
24269085 | 115 | { "virtio-sound-pci", "virtio-sound", QEMU_ARCH_VIRTIO_PCI }, |
4c5806a5 | 116 | { "virtio-tablet-device", "virtio-tablet", QEMU_ARCH_VIRTIO_MMIO }, |
203adb43 LV |
117 | { "virtio-tablet-ccw", "virtio-tablet", QEMU_ARCH_VIRTIO_CCW }, |
118 | { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_VIRTIO_PCI }, | |
ee46d8a5 AL |
119 | { } |
120 | }; | |
121 | ||
122 | static const char *qdev_class_get_alias(DeviceClass *dc) | |
123 | { | |
124 | const char *typename = object_class_get_name(OBJECT_CLASS(dc)); | |
125 | int i; | |
126 | ||
127 | for (i = 0; qdev_alias_table[i].typename; i++) { | |
5f629d94 AG |
128 | if (qdev_alias_table[i].arch_mask && |
129 | !(qdev_alias_table[i].arch_mask & arch_type)) { | |
130 | continue; | |
131 | } | |
132 | ||
ee46d8a5 AL |
133 | if (strcmp(qdev_alias_table[i].typename, typename) == 0) { |
134 | return qdev_alias_table[i].alias; | |
135 | } | |
136 | } | |
137 | ||
138 | return NULL; | |
139 | } | |
140 | ||
141 | static bool qdev_class_has_alias(DeviceClass *dc) | |
142 | { | |
143 | return (qdev_class_get_alias(dc) != NULL); | |
144 | } | |
145 | ||
a3400aee | 146 | static void qdev_print_devinfo(DeviceClass *dc) |
ee46d8a5 | 147 | { |
8acb2a75 | 148 | qemu_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc))); |
0d936928 | 149 | if (dc->bus_type) { |
8acb2a75 | 150 | qemu_printf(", bus %s", dc->bus_type); |
ee46d8a5 AL |
151 | } |
152 | if (qdev_class_has_alias(dc)) { | |
8acb2a75 | 153 | qemu_printf(", alias \"%s\"", qdev_class_get_alias(dc)); |
ee46d8a5 AL |
154 | } |
155 | if (dc->desc) { | |
8acb2a75 | 156 | qemu_printf(", desc \"%s\"", dc->desc); |
ee46d8a5 | 157 | } |
e90f2a8c | 158 | if (!dc->user_creatable) { |
8acb2a75 | 159 | qemu_printf(", no-user"); |
ee46d8a5 | 160 | } |
8acb2a75 | 161 | qemu_printf("\n"); |
ee46d8a5 AL |
162 | } |
163 | ||
a3400aee MA |
164 | static void qdev_print_devinfos(bool show_no_user) |
165 | { | |
166 | static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = { | |
167 | [DEVICE_CATEGORY_BRIDGE] = "Controller/Bridge/Hub", | |
168 | [DEVICE_CATEGORY_USB] = "USB", | |
169 | [DEVICE_CATEGORY_STORAGE] = "Storage", | |
170 | [DEVICE_CATEGORY_NETWORK] = "Network", | |
171 | [DEVICE_CATEGORY_INPUT] = "Input", | |
172 | [DEVICE_CATEGORY_DISPLAY] = "Display", | |
173 | [DEVICE_CATEGORY_SOUND] = "Sound", | |
174 | [DEVICE_CATEGORY_MISC] = "Misc", | |
ba31cc72 | 175 | [DEVICE_CATEGORY_CPU] = "CPU", |
b10cb627 | 176 | [DEVICE_CATEGORY_WATCHDOG]= "Watchdog", |
a3400aee MA |
177 | [DEVICE_CATEGORY_MAX] = "Uncategorized", |
178 | }; | |
179 | GSList *list, *elt; | |
180 | int i; | |
181 | bool cat_printed; | |
182 | ||
7ab6e7fc | 183 | module_load_qom_all(); |
47c66009 | 184 | list = object_class_get_list_sorted(TYPE_DEVICE, false); |
a3400aee MA |
185 | |
186 | for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) { | |
187 | cat_printed = false; | |
188 | for (elt = list; elt; elt = elt->next) { | |
189 | DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data, | |
190 | TYPE_DEVICE); | |
191 | if ((i < DEVICE_CATEGORY_MAX | |
192 | ? !test_bit(i, dc->categories) | |
193 | : !bitmap_empty(dc->categories, DEVICE_CATEGORY_MAX)) | |
efec3dd6 | 194 | || (!show_no_user |
e90f2a8c | 195 | && !dc->user_creatable)) { |
a3400aee MA |
196 | continue; |
197 | } | |
198 | if (!cat_printed) { | |
8acb2a75 | 199 | qemu_printf("%s%s devices:\n", i ? "\n" : "", cat_name[i]); |
a3400aee MA |
200 | cat_printed = true; |
201 | } | |
202 | qdev_print_devinfo(dc); | |
203 | } | |
204 | } | |
205 | ||
206 | g_slist_free(list); | |
207 | } | |
208 | ||
ee46d8a5 AL |
209 | static const char *find_typename_by_alias(const char *alias) |
210 | { | |
211 | int i; | |
212 | ||
213 | for (i = 0; qdev_alias_table[i].alias; i++) { | |
5f629d94 AG |
214 | if (qdev_alias_table[i].arch_mask && |
215 | !(qdev_alias_table[i].arch_mask & arch_type)) { | |
216 | continue; | |
217 | } | |
218 | ||
ee46d8a5 AL |
219 | if (strcmp(qdev_alias_table[i].alias, alias) == 0) { |
220 | return qdev_alias_table[i].typename; | |
221 | } | |
222 | } | |
223 | ||
224 | return NULL; | |
225 | } | |
226 | ||
43c95d78 EH |
227 | static DeviceClass *qdev_get_device_class(const char **driver, Error **errp) |
228 | { | |
229 | ObjectClass *oc; | |
230 | DeviceClass *dc; | |
f6b5319d | 231 | const char *original_name = *driver; |
43c95d78 | 232 | |
7ab6e7fc | 233 | oc = module_object_class_by_name(*driver); |
43c95d78 EH |
234 | if (!oc) { |
235 | const char *typename = find_typename_by_alias(*driver); | |
236 | ||
237 | if (typename) { | |
238 | *driver = typename; | |
7ab6e7fc | 239 | oc = module_object_class_by_name(*driver); |
43c95d78 EH |
240 | } |
241 | } | |
242 | ||
243 | if (!object_class_dynamic_cast(oc, TYPE_DEVICE)) { | |
f6b5319d SS |
244 | if (*driver != original_name) { |
245 | error_setg(errp, "'%s' (alias '%s') is not a valid device model" | |
246 | " name", original_name, *driver); | |
247 | } else { | |
248 | error_setg(errp, "'%s' is not a valid device model name", *driver); | |
249 | } | |
43c95d78 EH |
250 | return NULL; |
251 | } | |
252 | ||
253 | if (object_class_is_abstract(oc)) { | |
c6bd8c70 | 254 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", |
6cc0667d | 255 | "a non-abstract device type"); |
43c95d78 EH |
256 | return NULL; |
257 | } | |
258 | ||
259 | dc = DEVICE_CLASS(oc); | |
e90f2a8c | 260 | if (!dc->user_creatable || |
2f181fbd | 261 | (phase_check(PHASE_MACHINE_READY) && !dc->hotpluggable)) { |
c6bd8c70 | 262 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", |
6cc0667d | 263 | "a pluggable device type"); |
43c95d78 EH |
264 | return NULL; |
265 | } | |
266 | ||
312e1b1f DH |
267 | if (object_class_dynamic_cast(oc, TYPE_SYS_BUS_DEVICE)) { |
268 | /* sysbus devices need to be allowed by the machine */ | |
269 | MachineClass *mc = MACHINE_CLASS(object_get_class(qdev_get_machine())); | |
270 | if (!device_type_is_dynamic_sysbus(mc, *driver)) { | |
271 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver", | |
272 | "a dynamic sysbus device type for the machine"); | |
273 | return NULL; | |
274 | } | |
275 | } | |
276 | ||
43c95d78 EH |
277 | return dc; |
278 | } | |
279 | ||
280 | ||
ee46d8a5 AL |
281 | int qdev_device_help(QemuOpts *opts) |
282 | { | |
ef523587 | 283 | Error *local_err = NULL; |
ee46d8a5 | 284 | const char *driver; |
35f63767 AK |
285 | ObjectPropertyInfoList *prop_list; |
286 | ObjectPropertyInfoList *prop; | |
e1043d67 MAL |
287 | GPtrArray *array; |
288 | int i; | |
ee46d8a5 AL |
289 | |
290 | driver = qemu_opt_get(opts, "driver"); | |
c8057f95 | 291 | if (driver && is_help_option(driver)) { |
a3400aee | 292 | qdev_print_devinfos(false); |
ee46d8a5 AL |
293 | return 1; |
294 | } | |
295 | ||
c8057f95 | 296 | if (!driver || !qemu_opt_has_help_opt(opts)) { |
ee46d8a5 AL |
297 | return 0; |
298 | } | |
299 | ||
33fe9683 MA |
300 | if (!object_class_by_name(driver)) { |
301 | const char *typename = find_typename_by_alias(driver); | |
302 | ||
303 | if (typename) { | |
304 | driver = typename; | |
305 | } | |
ee46d8a5 AL |
306 | } |
307 | ||
ef523587 | 308 | prop_list = qmp_device_list_properties(driver, &local_err); |
0722eba9 | 309 | if (local_err) { |
5185f0e0 | 310 | goto error; |
ee46d8a5 | 311 | } |
ef523587 | 312 | |
9c2762b4 | 313 | if (prop_list) { |
8acb2a75 | 314 | qemu_printf("%s options:\n", driver); |
9c2762b4 | 315 | } else { |
8acb2a75 | 316 | qemu_printf("There are no options for %s.\n", driver); |
9c2762b4 | 317 | } |
e1043d67 | 318 | array = g_ptr_array_new(); |
ef523587 | 319 | for (prop = prop_list; prop; prop = prop->next) { |
e1043d67 MAL |
320 | g_ptr_array_add(array, |
321 | object_property_help(prop->value->name, | |
322 | prop->value->type, | |
323 | prop->value->default_value, | |
324 | prop->value->description)); | |
ef523587 | 325 | } |
e1043d67 MAL |
326 | g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0); |
327 | for (i = 0; i < array->len; i++) { | |
029afc4e | 328 | qemu_printf("%s\n", (char *)array->pdata[i]); |
e1043d67 MAL |
329 | } |
330 | g_ptr_array_set_free_func(array, g_free); | |
331 | g_ptr_array_free(array, true); | |
35f63767 | 332 | qapi_free_ObjectPropertyInfoList(prop_list); |
ee46d8a5 | 333 | return 1; |
5185f0e0 EH |
334 | |
335 | error: | |
78288671 | 336 | error_report_err(local_err); |
5185f0e0 | 337 | return 1; |
ee46d8a5 AL |
338 | } |
339 | ||
57c9fafe | 340 | static Object *qdev_get_peripheral(void) |
ee46d8a5 | 341 | { |
8b45d447 | 342 | static Object *dev; |
ee46d8a5 AL |
343 | |
344 | if (dev == NULL) { | |
dfe47e70 | 345 | dev = container_get(qdev_get_machine(), "/peripheral"); |
ee46d8a5 AL |
346 | } |
347 | ||
8b45d447 | 348 | return dev; |
ee46d8a5 AL |
349 | } |
350 | ||
57c9fafe | 351 | static Object *qdev_get_peripheral_anon(void) |
ee46d8a5 | 352 | { |
8b45d447 | 353 | static Object *dev; |
ee46d8a5 AL |
354 | |
355 | if (dev == NULL) { | |
dfe47e70 | 356 | dev = container_get(qdev_get_machine(), "/peripheral-anon"); |
ee46d8a5 AL |
357 | } |
358 | ||
8b45d447 | 359 | return dev; |
ee46d8a5 AL |
360 | } |
361 | ||
34077326 VSO |
362 | static void qbus_error_append_bus_list_hint(DeviceState *dev, |
363 | Error *const *errp) | |
ee46d8a5 AL |
364 | { |
365 | BusState *child; | |
366 | const char *sep = " "; | |
367 | ||
50b7b000 EB |
368 | error_append_hint(errp, "child buses at \"%s\":", |
369 | dev->id ? dev->id : object_get_typename(OBJECT(dev))); | |
ee46d8a5 | 370 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
50b7b000 | 371 | error_append_hint(errp, "%s\"%s\"", sep, child->name); |
ee46d8a5 AL |
372 | sep = ", "; |
373 | } | |
543202c0 | 374 | error_append_hint(errp, "\n"); |
ee46d8a5 AL |
375 | } |
376 | ||
34077326 VSO |
377 | static void qbus_error_append_dev_list_hint(BusState *bus, |
378 | Error *const *errp) | |
ee46d8a5 | 379 | { |
0866aca1 | 380 | BusChild *kid; |
ee46d8a5 AL |
381 | const char *sep = " "; |
382 | ||
50b7b000 | 383 | error_append_hint(errp, "devices at \"%s\":", bus->name); |
0866aca1 AL |
384 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
385 | DeviceState *dev = kid->child; | |
50b7b000 EB |
386 | error_append_hint(errp, "%s\"%s\"", sep, |
387 | object_get_typename(OBJECT(dev))); | |
388 | if (dev->id) { | |
389 | error_append_hint(errp, "/\"%s\"", dev->id); | |
390 | } | |
ee46d8a5 AL |
391 | sep = ", "; |
392 | } | |
543202c0 | 393 | error_append_hint(errp, "\n"); |
ee46d8a5 AL |
394 | } |
395 | ||
396 | static BusState *qbus_find_bus(DeviceState *dev, char *elem) | |
397 | { | |
398 | BusState *child; | |
399 | ||
400 | QLIST_FOREACH(child, &dev->child_bus, sibling) { | |
401 | if (strcmp(child->name, elem) == 0) { | |
402 | return child; | |
403 | } | |
404 | } | |
405 | return NULL; | |
406 | } | |
407 | ||
408 | static DeviceState *qbus_find_dev(BusState *bus, char *elem) | |
409 | { | |
0866aca1 | 410 | BusChild *kid; |
ee46d8a5 AL |
411 | |
412 | /* | |
413 | * try to match in order: | |
414 | * (1) instance id, if present | |
415 | * (2) driver name | |
416 | * (3) driver alias, if present | |
417 | */ | |
0866aca1 AL |
418 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
419 | DeviceState *dev = kid->child; | |
ee46d8a5 AL |
420 | if (dev->id && strcmp(dev->id, elem) == 0) { |
421 | return dev; | |
422 | } | |
423 | } | |
0866aca1 AL |
424 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
425 | DeviceState *dev = kid->child; | |
ee46d8a5 AL |
426 | if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) { |
427 | return dev; | |
428 | } | |
429 | } | |
0866aca1 AL |
430 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
431 | DeviceState *dev = kid->child; | |
ee46d8a5 AL |
432 | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
433 | ||
434 | if (qdev_class_has_alias(dc) && | |
435 | strcmp(qdev_class_get_alias(dc), elem) == 0) { | |
436 | return dev; | |
437 | } | |
438 | } | |
439 | return NULL; | |
440 | } | |
441 | ||
a5ec494e MA |
442 | static inline bool qbus_is_full(BusState *bus) |
443 | { | |
1518562b PM |
444 | BusClass *bus_class; |
445 | ||
446 | if (bus->full) { | |
447 | return true; | |
448 | } | |
449 | bus_class = BUS_GET_CLASS(bus); | |
12b2e9f3 | 450 | return bus_class->max_dev && bus->num_children >= bus_class->max_dev; |
a5ec494e MA |
451 | } |
452 | ||
453 | /* | |
454 | * Search the tree rooted at @bus for a bus. | |
455 | * If @name, search for a bus with that name. Note that bus names | |
456 | * need not be unique. Yes, that's screwed up. | |
457 | * Else search for a bus that is a subtype of @bus_typename. | |
458 | * If more than one exists, prefer one that can take another device. | |
459 | * Return the bus if found, else %NULL. | |
460 | */ | |
ee46d8a5 | 461 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
0d936928 | 462 | const char *bus_typename) |
ee46d8a5 | 463 | { |
0866aca1 | 464 | BusChild *kid; |
a5ec494e MA |
465 | BusState *pick, *child, *ret; |
466 | bool match; | |
467 | ||
468 | assert(name || bus_typename); | |
469 | if (name) { | |
470 | match = !strcmp(bus->name, name); | |
471 | } else { | |
472 | match = !!object_dynamic_cast(OBJECT(bus), bus_typename); | |
1395af6f | 473 | } |
a5ec494e MA |
474 | |
475 | if (match && !qbus_is_full(bus)) { | |
476 | return bus; /* root matches and isn't full */ | |
ee46d8a5 AL |
477 | } |
478 | ||
a5ec494e MA |
479 | pick = match ? bus : NULL; |
480 | ||
0866aca1 AL |
481 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
482 | DeviceState *dev = kid->child; | |
ee46d8a5 | 483 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
0d936928 | 484 | ret = qbus_find_recursive(child, name, bus_typename); |
a5ec494e MA |
485 | if (ret && !qbus_is_full(ret)) { |
486 | return ret; /* a descendant matches and isn't full */ | |
487 | } | |
488 | if (ret && !pick) { | |
489 | pick = ret; | |
ee46d8a5 AL |
490 | } |
491 | } | |
492 | } | |
a5ec494e MA |
493 | |
494 | /* root or a descendant matches, but is full */ | |
495 | return pick; | |
ee46d8a5 AL |
496 | } |
497 | ||
d2828429 | 498 | static BusState *qbus_find(const char *path, Error **errp) |
ee46d8a5 AL |
499 | { |
500 | DeviceState *dev; | |
501 | BusState *bus; | |
502 | char elem[128]; | |
503 | int pos, len; | |
504 | ||
505 | /* find start element */ | |
506 | if (path[0] == '/') { | |
507 | bus = sysbus_get_default(); | |
508 | pos = 0; | |
509 | } else { | |
510 | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { | |
511 | assert(!path[0]); | |
512 | elem[0] = len = 0; | |
513 | } | |
514 | bus = qbus_find_recursive(sysbus_get_default(), elem, NULL); | |
515 | if (!bus) { | |
d2828429 | 516 | error_setg(errp, "Bus '%s' not found", elem); |
ee46d8a5 AL |
517 | return NULL; |
518 | } | |
519 | pos = len; | |
520 | } | |
521 | ||
522 | for (;;) { | |
523 | assert(path[pos] == '/' || !path[pos]); | |
524 | while (path[pos] == '/') { | |
525 | pos++; | |
526 | } | |
527 | if (path[pos] == '\0') { | |
ed238ba2 | 528 | break; |
ee46d8a5 AL |
529 | } |
530 | ||
531 | /* find device */ | |
532 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { | |
dfc6f865 | 533 | g_assert_not_reached(); |
ee46d8a5 AL |
534 | elem[0] = len = 0; |
535 | } | |
536 | pos += len; | |
537 | dev = qbus_find_dev(bus, elem); | |
538 | if (!dev) { | |
75158ebb MA |
539 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
540 | "Device '%s' not found", elem); | |
34077326 | 541 | qbus_error_append_dev_list_hint(bus, errp); |
ee46d8a5 AL |
542 | return NULL; |
543 | } | |
544 | ||
545 | assert(path[pos] == '/' || !path[pos]); | |
546 | while (path[pos] == '/') { | |
547 | pos++; | |
548 | } | |
549 | if (path[pos] == '\0') { | |
550 | /* last specified element is a device. If it has exactly | |
551 | * one child bus accept it nevertheless */ | |
ed238ba2 MA |
552 | if (dev->num_child_bus == 1) { |
553 | bus = QLIST_FIRST(&dev->child_bus); | |
554 | break; | |
555 | } | |
556 | if (dev->num_child_bus) { | |
d2828429 MA |
557 | error_setg(errp, "Device '%s' has multiple child buses", |
558 | elem); | |
34077326 | 559 | qbus_error_append_bus_list_hint(dev, errp); |
ed238ba2 | 560 | } else { |
d2828429 | 561 | error_setg(errp, "Device '%s' has no child bus", elem); |
ee46d8a5 | 562 | } |
ed238ba2 | 563 | return NULL; |
ee46d8a5 AL |
564 | } |
565 | ||
566 | /* find bus */ | |
567 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { | |
dfc6f865 | 568 | g_assert_not_reached(); |
ee46d8a5 AL |
569 | elem[0] = len = 0; |
570 | } | |
571 | pos += len; | |
572 | bus = qbus_find_bus(dev, elem); | |
573 | if (!bus) { | |
d2828429 | 574 | error_setg(errp, "Bus '%s' not found", elem); |
34077326 | 575 | qbus_error_append_bus_list_hint(dev, errp); |
ee46d8a5 AL |
576 | return NULL; |
577 | } | |
578 | } | |
ed238ba2 MA |
579 | |
580 | if (qbus_is_full(bus)) { | |
d2828429 | 581 | error_setg(errp, "Bus '%s' is full", path); |
ed238ba2 MA |
582 | return NULL; |
583 | } | |
584 | return bus; | |
ee46d8a5 AL |
585 | } |
586 | ||
163f3847 | 587 | /* Takes ownership of @id, will be freed when deleting the device */ |
4a1d9377 | 588 | const char *qdev_set_id(DeviceState *dev, char *id, Error **errp) |
ce49b734 | 589 | { |
4a1d9377 | 590 | ObjectProperty *prop; |
ce49b734 | 591 | |
4a1d9377 DH |
592 | assert(!dev->id && !dev->realized); |
593 | ||
594 | /* | |
595 | * object_property_[try_]add_child() below will assert the device | |
596 | * has no parent | |
597 | */ | |
598 | if (id) { | |
599 | prop = object_property_try_add_child(qdev_get_peripheral(), id, | |
600 | OBJECT(dev), NULL); | |
601 | if (prop) { | |
602 | dev->id = id; | |
603 | } else { | |
4a1d9377 | 604 | error_setg(errp, "Duplicate device ID '%s'", id); |
b66cecb2 | 605 | g_free(id); |
4a1d9377 DH |
606 | return NULL; |
607 | } | |
ce49b734 JG |
608 | } else { |
609 | static int anon_count; | |
610 | gchar *name = g_strdup_printf("device[%d]", anon_count++); | |
4a1d9377 DH |
611 | prop = object_property_add_child(qdev_get_peripheral_anon(), name, |
612 | OBJECT(dev)); | |
ce49b734 JG |
613 | g_free(name); |
614 | } | |
4a1d9377 DH |
615 | |
616 | return prop->name; | |
ce49b734 JG |
617 | } |
618 | ||
f3558b1b KW |
619 | DeviceState *qdev_device_add_from_qdict(const QDict *opts, |
620 | bool from_json, Error **errp) | |
ee46d8a5 | 621 | { |
7d618082 | 622 | ERRP_GUARD(); |
f4d85795 | 623 | DeviceClass *dc; |
ce49b734 | 624 | const char *driver, *path; |
f3558b1b | 625 | char *id; |
f3a85056 | 626 | DeviceState *dev = NULL; |
2f7bd829 | 627 | BusState *bus = NULL; |
ee46d8a5 | 628 | |
f3558b1b | 629 | driver = qdict_get_try_str(opts, "driver"); |
ee46d8a5 | 630 | if (!driver) { |
c6bd8c70 | 631 | error_setg(errp, QERR_MISSING_PARAMETER, "driver"); |
ee46d8a5 AL |
632 | return NULL; |
633 | } | |
634 | ||
635 | /* find driver */ | |
f006cf7f MA |
636 | dc = qdev_get_device_class(&driver, errp); |
637 | if (!dc) { | |
7ea5e78f MA |
638 | return NULL; |
639 | } | |
ee46d8a5 AL |
640 | |
641 | /* find bus */ | |
f3558b1b | 642 | path = qdict_get_try_str(opts, "bus"); |
ee46d8a5 | 643 | if (path != NULL) { |
f006cf7f | 644 | bus = qbus_find(path, errp); |
ee46d8a5 AL |
645 | if (!bus) { |
646 | return NULL; | |
647 | } | |
f4d85795 | 648 | if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) { |
f006cf7f MA |
649 | error_setg(errp, "Device '%s' can't go on %s bus", |
650 | driver, object_get_typename(OBJECT(bus))); | |
ee46d8a5 AL |
651 | return NULL; |
652 | } | |
f4d85795 AF |
653 | } else if (dc->bus_type != NULL) { |
654 | bus = qbus_find_recursive(sysbus_get_default(), NULL, dc->bus_type); | |
a5ec494e | 655 | if (!bus || qbus_is_full(bus)) { |
f006cf7f MA |
656 | error_setg(errp, "No '%s' bus found for device '%s'", |
657 | dc->bus_type, driver); | |
ee46d8a5 AL |
658 | return NULL; |
659 | } | |
660 | } | |
f3a85056 | 661 | |
bcfc906b LV |
662 | if (qdev_should_hide_device(opts, from_json, errp)) { |
663 | if (bus && !qbus_is_hotpluggable(bus)) { | |
664 | error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name); | |
5f2ef3b0 | 665 | } |
bcfc906b LV |
666 | return NULL; |
667 | } else if (*errp) { | |
668 | return NULL; | |
ee46d8a5 AL |
669 | } |
670 | ||
2f181fbd | 671 | if (phase_check(PHASE_MACHINE_READY) && bus && !qbus_is_hotpluggable(bus)) { |
5f2ef3b0 | 672 | error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name); |
f3a85056 JF |
673 | return NULL; |
674 | } | |
675 | ||
b06424de JQ |
676 | if (!migration_is_idle()) { |
677 | error_setg(errp, "device_add not allowed while migrating"); | |
678 | return NULL; | |
679 | } | |
680 | ||
7b030949 | 681 | /* create device */ |
4e3a6778 | 682 | dev = qdev_new(driver); |
2f7bd829 | 683 | |
d2321d31 | 684 | /* Check whether the hotplug is allowed by the machine */ |
2f181fbd PB |
685 | if (phase_check(PHASE_MACHINE_READY)) { |
686 | if (!qdev_hotplug_allowed(dev, errp)) { | |
687 | goto err_del_dev; | |
688 | } | |
d2321d31 | 689 | |
2f181fbd PB |
690 | if (!bus && !qdev_get_machine_hotplug_handler(dev)) { |
691 | /* No bus, no machine hotplug handler --> device is not hotpluggable */ | |
692 | error_setg(errp, "Device '%s' can not be hotplugged on this machine", | |
693 | driver); | |
694 | goto err_del_dev; | |
695 | } | |
2f7bd829 | 696 | } |
ee46d8a5 | 697 | |
4a1d9377 DH |
698 | /* |
699 | * set dev's parent and register its id. | |
700 | * If it fails it means the id is already taken. | |
701 | */ | |
f3558b1b KW |
702 | id = g_strdup(qdict_get_try_str(opts, "id")); |
703 | if (!qdev_set_id(dev, id, errp)) { | |
4a1d9377 DH |
704 | goto err_del_dev; |
705 | } | |
52aa17cb | 706 | |
7b030949 | 707 | /* set properties */ |
f3558b1b KW |
708 | dev->opts = qdict_clone_shallow(opts); |
709 | qdict_del(dev->opts, "driver"); | |
710 | qdict_del(dev->opts, "bus"); | |
711 | qdict_del(dev->opts, "id"); | |
712 | ||
713 | object_set_properties_from_keyval(&dev->parent_obj, dev->opts, from_json, | |
714 | errp); | |
715 | if (*errp) { | |
58346214 | 716 | goto err_del_dev; |
7b030949 AK |
717 | } |
718 | ||
7d5b0d68 | 719 | if (!qdev_realize(dev, bus, errp)) { |
58346214 | 720 | goto err_del_dev; |
f424d5c4 | 721 | } |
2bcb0c62 | 722 | return dev; |
58346214 TH |
723 | |
724 | err_del_dev: | |
f3a85056 JF |
725 | if (dev) { |
726 | object_unparent(OBJECT(dev)); | |
727 | object_unref(OBJECT(dev)); | |
728 | } | |
58346214 | 729 | return NULL; |
ee46d8a5 AL |
730 | } |
731 | ||
f3558b1b KW |
732 | /* Takes ownership of @opts on success */ |
733 | DeviceState *qdev_device_add(QemuOpts *opts, Error **errp) | |
734 | { | |
735 | QDict *qdict = qemu_opts_to_qdict(opts, NULL); | |
736 | DeviceState *ret; | |
737 | ||
738 | ret = qdev_device_add_from_qdict(qdict, false, errp); | |
739 | if (ret) { | |
740 | qemu_opts_del(opts); | |
741 | } | |
742 | qobject_unref(qdict); | |
743 | return ret; | |
744 | } | |
ee46d8a5 AL |
745 | |
746 | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) | |
747 | static void qbus_print(Monitor *mon, BusState *bus, int indent); | |
748 | ||
749 | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, | |
bce54474 | 750 | int indent) |
ee46d8a5 | 751 | { |
ee46d8a5 AL |
752 | if (!props) |
753 | return; | |
d822979b | 754 | for (; props->name; props++) { |
d822979b PB |
755 | char *value; |
756 | char *legacy_name = g_strdup_printf("legacy-%s", props->name); | |
a43770df | 757 | |
d822979b | 758 | if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) { |
a43770df | 759 | value = object_property_get_str(OBJECT(dev), legacy_name, NULL); |
d822979b | 760 | } else { |
a43770df MA |
761 | value = object_property_print(OBJECT(dev), props->name, true, |
762 | NULL); | |
d822979b PB |
763 | } |
764 | g_free(legacy_name); | |
765 | ||
a43770df | 766 | if (!value) { |
d822979b | 767 | continue; |
ee46d8a5 | 768 | } |
bce54474 | 769 | qdev_printf("%s = %s\n", props->name, |
a43770df | 770 | *value ? value : "<null>"); |
d822979b | 771 | g_free(value); |
ee46d8a5 AL |
772 | } |
773 | } | |
774 | ||
0d936928 AL |
775 | static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent) |
776 | { | |
777 | BusClass *bc = BUS_GET_CLASS(bus); | |
778 | ||
779 | if (bc->print_dev) { | |
780 | bc->print_dev(mon, dev, indent); | |
781 | } | |
782 | } | |
783 | ||
ee46d8a5 AL |
784 | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
785 | { | |
bce54474 | 786 | ObjectClass *class; |
ee46d8a5 | 787 | BusState *child; |
a5f54290 | 788 | NamedGPIOList *ngl; |
9f2ff99c | 789 | NamedClockList *ncl; |
a5f54290 | 790 | |
ee46d8a5 AL |
791 | qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)), |
792 | dev->id ? dev->id : ""); | |
793 | indent += 2; | |
a5f54290 PC |
794 | QLIST_FOREACH(ngl, &dev->gpios, node) { |
795 | if (ngl->num_in) { | |
796 | qdev_printf("gpio-in \"%s\" %d\n", ngl->name ? ngl->name : "", | |
797 | ngl->num_in); | |
798 | } | |
799 | if (ngl->num_out) { | |
800 | qdev_printf("gpio-out \"%s\" %d\n", ngl->name ? ngl->name : "", | |
801 | ngl->num_out); | |
802 | } | |
ee46d8a5 | 803 | } |
9f2ff99c | 804 | QLIST_FOREACH(ncl, &dev->clocks, node) { |
b7cd9c1e PM |
805 | g_autofree char *freq_str = clock_display_freq(ncl->clock); |
806 | qdev_printf("clock-%s%s \"%s\" freq_hz=%s\n", | |
9f2ff99c DH |
807 | ncl->output ? "out" : "in", |
808 | ncl->alias ? " (alias)" : "", | |
b7cd9c1e | 809 | ncl->name, freq_str); |
9f2ff99c | 810 | } |
bce54474 PB |
811 | class = object_get_class(OBJECT(dev)); |
812 | do { | |
385d8f22 | 813 | qdev_print_props(mon, dev, DEVICE_CLASS(class)->props_, indent); |
bce54474 PB |
814 | class = object_class_get_parent(class); |
815 | } while (class != object_class_by_name(TYPE_DEVICE)); | |
da9fbe76 | 816 | bus_print_dev(dev->parent_bus, mon, dev, indent); |
ee46d8a5 AL |
817 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
818 | qbus_print(mon, child, indent); | |
819 | } | |
820 | } | |
821 | ||
822 | static void qbus_print(Monitor *mon, BusState *bus, int indent) | |
823 | { | |
0866aca1 | 824 | BusChild *kid; |
ee46d8a5 AL |
825 | |
826 | qdev_printf("bus: %s\n", bus->name); | |
827 | indent += 2; | |
0d936928 | 828 | qdev_printf("type %s\n", object_get_typename(OBJECT(bus))); |
0866aca1 AL |
829 | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
830 | DeviceState *dev = kid->child; | |
ee46d8a5 AL |
831 | qdev_print(mon, dev, indent); |
832 | } | |
833 | } | |
834 | #undef qdev_printf | |
835 | ||
1ce6be24 | 836 | void hmp_info_qtree(Monitor *mon, const QDict *qdict) |
ee46d8a5 AL |
837 | { |
838 | if (sysbus_get_default()) | |
839 | qbus_print(mon, sysbus_get_default(), 0); | |
840 | } | |
841 | ||
1ce6be24 | 842 | void hmp_info_qdm(Monitor *mon, const QDict *qdict) |
ee46d8a5 | 843 | { |
a3400aee | 844 | qdev_print_devinfos(true); |
ee46d8a5 AL |
845 | } |
846 | ||
485febc6 | 847 | void qmp_device_add(QDict *qdict, QObject **ret_data, Error **errp) |
ee46d8a5 AL |
848 | { |
849 | QemuOpts *opts; | |
b09995ae | 850 | DeviceState *dev; |
ee46d8a5 | 851 | |
c6ecec43 MA |
852 | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, errp); |
853 | if (!opts) { | |
485febc6 | 854 | return; |
ee46d8a5 AL |
855 | } |
856 | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) { | |
857 | qemu_opts_del(opts); | |
485febc6 | 858 | return; |
ee46d8a5 | 859 | } |
668f62ec | 860 | dev = qdev_device_add(opts, errp); |
7bed8995 ML |
861 | |
862 | /* | |
863 | * Drain all pending RCU callbacks. This is done because | |
864 | * some bus related operations can delay a device removal | |
865 | * (in this case this can happen if device is added and then | |
866 | * removed due to a configuration error) | |
867 | * to a RCU callback, but user might expect that this interface | |
868 | * will finish its job completely once qmp command returns result | |
869 | * to the user | |
870 | */ | |
871 | drain_call_rcu(); | |
872 | ||
b09995ae | 873 | if (!dev) { |
ee46d8a5 | 874 | qemu_opts_del(opts); |
485febc6 | 875 | return; |
ee46d8a5 | 876 | } |
b09995ae | 877 | object_unref(OBJECT(dev)); |
ee46d8a5 AL |
878 | } |
879 | ||
6c1db528 | 880 | static DeviceState *find_device_state(const char *id, Error **errp) |
ee46d8a5 | 881 | { |
1bf4d329 | 882 | Object *obj = object_resolve_path_at(qdev_get_peripheral(), id); |
69520261 | 883 | DeviceState *dev; |
ee46d8a5 | 884 | |
b6cc36ab | 885 | if (!obj) { |
75158ebb MA |
886 | error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, |
887 | "Device '%s' not found", id); | |
6c1db528 | 888 | return NULL; |
56f9107e LC |
889 | } |
890 | ||
69520261 MA |
891 | dev = (DeviceState *)object_dynamic_cast(obj, TYPE_DEVICE); |
892 | if (!dev) { | |
6287d827 | 893 | error_setg(errp, "%s is not a hotpluggable device", id); |
6c1db528 | 894 | return NULL; |
6287d827 DB |
895 | } |
896 | ||
69520261 | 897 | return dev; |
6c1db528 KW |
898 | } |
899 | ||
32900679 JQ |
900 | void qdev_unplug(DeviceState *dev, Error **errp) |
901 | { | |
902 | DeviceClass *dc = DEVICE_GET_CLASS(dev); | |
903 | HotplugHandler *hotplug_ctrl; | |
904 | HotplugHandlerClass *hdc; | |
07578b0a | 905 | Error *local_err = NULL; |
32900679 | 906 | |
217c7f01 JR |
907 | if (qdev_unplug_blocked(dev, errp)) { |
908 | return; | |
909 | } | |
910 | ||
32900679 JQ |
911 | if (dev->parent_bus && !qbus_is_hotpluggable(dev->parent_bus)) { |
912 | error_setg(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); | |
913 | return; | |
914 | } | |
915 | ||
916 | if (!dc->hotpluggable) { | |
917 | error_setg(errp, QERR_DEVICE_NO_HOTPLUG, | |
918 | object_get_typename(OBJECT(dev))); | |
919 | return; | |
920 | } | |
921 | ||
a1190ab6 | 922 | if (!migration_is_idle() && !dev->allow_unplug_during_migration) { |
b06424de JQ |
923 | error_setg(errp, "device_del not allowed while migrating"); |
924 | return; | |
925 | } | |
926 | ||
32900679 JQ |
927 | qdev_hot_removed = true; |
928 | ||
929 | hotplug_ctrl = qdev_get_hotplug_handler(dev); | |
930 | /* hotpluggable device MUST have HotplugHandler, if it doesn't | |
931 | * then something is very wrong with it */ | |
932 | g_assert(hotplug_ctrl); | |
933 | ||
934 | /* If device supports async unplug just request it to be done, | |
935 | * otherwise just remove it synchronously */ | |
936 | hdc = HOTPLUG_HANDLER_GET_CLASS(hotplug_ctrl); | |
937 | if (hdc->unplug_request) { | |
07578b0a | 938 | hotplug_handler_unplug_request(hotplug_ctrl, dev, &local_err); |
32900679 | 939 | } else { |
07578b0a DH |
940 | hotplug_handler_unplug(hotplug_ctrl, dev, &local_err); |
941 | if (!local_err) { | |
942 | object_unparent(OBJECT(dev)); | |
943 | } | |
32900679 | 944 | } |
07578b0a | 945 | error_propagate(errp, local_err); |
32900679 JQ |
946 | } |
947 | ||
6c1db528 KW |
948 | void qmp_device_del(const char *id, Error **errp) |
949 | { | |
950 | DeviceState *dev = find_device_state(id, errp); | |
951 | if (dev != NULL) { | |
18416c62 GH |
952 | if (dev->pending_deleted_event && |
953 | (dev->pending_deleted_expires_ms == 0 || | |
954 | dev->pending_deleted_expires_ms > qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL))) { | |
cce8944c JS |
955 | error_setg(errp, "Device %s is already in the " |
956 | "process of unplug", id); | |
957 | return; | |
958 | } | |
959 | ||
6c1db528 KW |
960 | qdev_unplug(dev, errp); |
961 | } | |
ee46d8a5 AL |
962 | } |
963 | ||
d94bd092 MA |
964 | void hmp_device_add(Monitor *mon, const QDict *qdict) |
965 | { | |
966 | Error *err = NULL; | |
967 | ||
968 | qmp_device_add((QDict *)qdict, NULL, &err); | |
187c6147 | 969 | hmp_handle_error(mon, err); |
d94bd092 MA |
970 | } |
971 | ||
972 | void hmp_device_del(Monitor *mon, const QDict *qdict) | |
973 | { | |
974 | const char *id = qdict_get_str(qdict, "id"); | |
975 | Error *err = NULL; | |
976 | ||
977 | qmp_device_del(id, &err); | |
187c6147 | 978 | hmp_handle_error(mon, err); |
d94bd092 MA |
979 | } |
980 | ||
9c9c5ce7 MA |
981 | void device_add_completion(ReadLineState *rs, int nb_args, const char *str) |
982 | { | |
983 | GSList *list, *elt; | |
984 | size_t len; | |
985 | ||
986 | if (nb_args != 2) { | |
987 | return; | |
988 | } | |
989 | ||
990 | len = strlen(str); | |
991 | readline_set_completion_index(rs, len); | |
992 | list = elt = object_class_get_list(TYPE_DEVICE, false); | |
993 | while (elt) { | |
994 | DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data, | |
995 | TYPE_DEVICE); | |
996 | ||
997 | if (dc->user_creatable) { | |
998 | readline_add_completion_of(rs, str, | |
999 | object_class_get_name(OBJECT_CLASS(dc))); | |
1000 | } | |
1001 | elt = elt->next; | |
1002 | } | |
1003 | g_slist_free(list); | |
1004 | } | |
1005 | ||
1006 | static int qdev_add_hotpluggable_device(Object *obj, void *opaque) | |
1007 | { | |
1008 | GSList **list = opaque; | |
1009 | DeviceState *dev = (DeviceState *)object_dynamic_cast(obj, TYPE_DEVICE); | |
1010 | ||
1011 | if (dev == NULL) { | |
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | if (dev->realized && object_property_get_bool(obj, "hotpluggable", NULL)) { | |
1016 | *list = g_slist_append(*list, dev); | |
1017 | } | |
1018 | ||
1019 | return 0; | |
1020 | } | |
1021 | ||
1022 | static GSList *qdev_build_hotpluggable_device_list(Object *peripheral) | |
1023 | { | |
1024 | GSList *list = NULL; | |
1025 | ||
1026 | object_child_foreach(peripheral, qdev_add_hotpluggable_device, &list); | |
1027 | ||
1028 | return list; | |
1029 | } | |
1030 | ||
1031 | static void peripheral_device_del_completion(ReadLineState *rs, | |
1032 | const char *str) | |
1033 | { | |
1034 | Object *peripheral = container_get(qdev_get_machine(), "/peripheral"); | |
1035 | GSList *list, *item; | |
1036 | ||
1037 | list = qdev_build_hotpluggable_device_list(peripheral); | |
1038 | if (!list) { | |
1039 | return; | |
1040 | } | |
1041 | ||
1042 | for (item = list; item; item = g_slist_next(item)) { | |
1043 | DeviceState *dev = item->data; | |
1044 | ||
1045 | if (dev->id) { | |
1046 | readline_add_completion_of(rs, str, dev->id); | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | g_slist_free(list); | |
1051 | } | |
1052 | ||
1053 | void device_del_completion(ReadLineState *rs, int nb_args, const char *str) | |
1054 | { | |
1055 | if (nb_args != 2) { | |
1056 | return; | |
1057 | } | |
1058 | ||
1059 | readline_set_completion_index(rs, strlen(str)); | |
1060 | peripheral_device_del_completion(rs, str); | |
1061 | } | |
1062 | ||
9680caee KW |
1063 | BlockBackend *blk_by_qdev_id(const char *id, Error **errp) |
1064 | { | |
1065 | DeviceState *dev; | |
1066 | BlockBackend *blk; | |
1067 | ||
0439c5a4 EGE |
1068 | GLOBAL_STATE_CODE(); |
1069 | ||
9680caee KW |
1070 | dev = find_device_state(id, errp); |
1071 | if (dev == NULL) { | |
1072 | return NULL; | |
1073 | } | |
1074 | ||
1075 | blk = blk_by_dev(dev); | |
1076 | if (!blk) { | |
1077 | error_setg(errp, "Device does not have a block device backend"); | |
1078 | } | |
1079 | return blk; | |
1080 | } | |
1081 | ||
4d454574 PB |
1082 | QemuOptsList qemu_device_opts = { |
1083 | .name = "device", | |
1084 | .implied_opt_name = "driver", | |
1085 | .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head), | |
1086 | .desc = { | |
1087 | /* | |
1088 | * no elements => accept any | |
1089 | * sanity checking will happen later | |
1090 | * when setting device properties | |
1091 | */ | |
1092 | { /* end of list */ } | |
1093 | }, | |
1094 | }; | |
1095 | ||
1096 | QemuOptsList qemu_global_opts = { | |
1097 | .name = "global", | |
1098 | .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head), | |
1099 | .desc = { | |
1100 | { | |
1101 | .name = "driver", | |
1102 | .type = QEMU_OPT_STRING, | |
1103 | },{ | |
1104 | .name = "property", | |
1105 | .type = QEMU_OPT_STRING, | |
1106 | },{ | |
1107 | .name = "value", | |
1108 | .type = QEMU_OPT_STRING, | |
1109 | }, | |
1110 | { /* end of list */ } | |
1111 | }, | |
1112 | }; | |
1113 | ||
1114 | int qemu_global_option(const char *str) | |
1115 | { | |
1116 | char driver[64], property[64]; | |
1117 | QemuOpts *opts; | |
1118 | int rc, offset; | |
1119 | ||
3751d7c4 PB |
1120 | rc = sscanf(str, "%63[^.=].%63[^=]%n", driver, property, &offset); |
1121 | if (rc == 2 && str[offset] == '=') { | |
1122 | opts = qemu_opts_create(&qemu_global_opts, NULL, 0, &error_abort); | |
1123 | qemu_opt_set(opts, "driver", driver, &error_abort); | |
1124 | qemu_opt_set(opts, "property", property, &error_abort); | |
1125 | qemu_opt_set(opts, "value", str + offset + 1, &error_abort); | |
1126 | return 0; | |
1127 | } | |
1128 | ||
70b94331 | 1129 | opts = qemu_opts_parse_noisily(&qemu_global_opts, str, false); |
3751d7c4 | 1130 | if (!opts) { |
4d454574 PB |
1131 | return -1; |
1132 | } | |
818e1636 RK |
1133 | if (!qemu_opt_get(opts, "driver") |
1134 | || !qemu_opt_get(opts, "property") | |
1135 | || !qemu_opt_get(opts, "value")) { | |
1136 | error_report("options 'driver', 'property', and 'value'" | |
1137 | " are required"); | |
1138 | return -1; | |
1139 | } | |
4d454574 | 1140 | |
4d454574 PB |
1141 | return 0; |
1142 | } | |
164dafd1 PB |
1143 | |
1144 | bool qmp_command_available(const QmpCommand *cmd, Error **errp) | |
1145 | { | |
2f181fbd | 1146 | if (!phase_check(PHASE_MACHINE_READY) && |
164dafd1 PB |
1147 | !(cmd->options & QCO_ALLOW_PRECONFIG)) { |
1148 | error_setg(errp, "The command '%s' is permitted only after machine initialization has completed", | |
1149 | cmd->name); | |
1150 | return false; | |
1151 | } | |
1152 | return true; | |
1153 | } |