blob: e19617fa8b33c9eb200037734a8504993d1693c7 [file] [log] [blame]
Anthony Liguoriee46d8a2011-12-22 15:24:20 -06001/*
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
9 * version 2 of the License, or (at your option) any later version.
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
Peter Maydelld38ea872016-01-29 17:50:05 +000020#include "qemu/osdep.h"
Paolo Bonzinib4a42f82013-02-04 11:37:52 +010021#include "hw/qdev.h"
Andreas Färber2f7bd822013-04-16 03:50:21 +020022#include "hw/sysbus.h"
Paolo Bonzini83c90892012-12-17 18:19:49 +010023#include "monitor/monitor.h"
Paolo Bonzinib4a42f82013-02-04 11:37:52 +010024#include "monitor/qdev.h"
Luiz Capitulinoa15fef22012-03-29 12:38:50 -030025#include "qmp-commands.h"
Paolo Bonzini9c17d612012-12-17 18:20:04 +010026#include "sysemu/arch_init.h"
Markus Armbrustercc7a8ea2015-03-17 17:22:46 +010027#include "qapi/qmp/qerror.h"
Paolo Bonzini1de7afc2012-12-17 18:20:00 +010028#include "qemu/config-file.h"
Markus Armbrusterd49b6832015-03-17 18:29:20 +010029#include "qemu/error-report.h"
Veronia Bahaaf348b6d2016-03-20 19:16:19 +020030#include "qemu/help_option.h"
Anthony Liguoriee46d8a2011-12-22 15:24:20 -060031
32/*
33 * Aliases were a bad idea from the start. Let's keep them
34 * from spreading further.
35 */
36typedef struct QDevAlias
37{
38 const char *typename;
39 const char *alias;
Alexander Graf5f629d92012-05-18 02:36:26 +020040 uint32_t arch_mask;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -060041} QDevAlias;
42
Sascha Silbe36e99162016-02-18 22:44:13 +010043/* Please keep this table sorted by typename. */
Anthony Liguoriee46d8a2011-12-22 15:24:20 -060044static const QDevAlias qdev_alias_table[] = {
Sascha Silbe36e99162016-02-18 22:44:13 +010045 { "e1000", "e1000-82540em" },
46 { "ich9-ahci", "ahci" },
47 { "kvm-pci-assign", "pci-assign" },
48 { "lsi53c895a", "lsi" },
Sascha Silbe588c36c2016-02-18 22:44:14 +010049 { "virtio-9p-ccw", "virtio-9p", QEMU_ARCH_S390X },
50 { "virtio-9p-pci", "virtio-9p", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
51 { "virtio-balloon-ccw", "virtio-balloon", QEMU_ARCH_S390X },
Alexander Graf5f629d92012-05-18 02:36:26 +020052 { "virtio-balloon-pci", "virtio-balloon",
53 QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
Alexander Graf1f68f1d2015-06-16 23:06:33 +020054 { "virtio-blk-ccw", "virtio-blk", QEMU_ARCH_S390X },
Sascha Silbe36e99162016-02-18 22:44:13 +010055 { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
Sascha Silbe588c36c2016-02-18 22:44:14 +010056 { "virtio-gpu-ccw", "virtio-gpu", QEMU_ARCH_S390X },
57 { "virtio-gpu-pci", "virtio-gpu", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
58 { "virtio-input-host-ccw", "virtio-input-host", QEMU_ARCH_S390X },
59 { "virtio-input-host-pci", "virtio-input-host",
60 QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
61 { "virtio-keyboard-ccw", "virtio-keyboard", QEMU_ARCH_S390X },
62 { "virtio-keyboard-pci", "virtio-keyboard",
63 QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
64 { "virtio-mouse-ccw", "virtio-mouse", QEMU_ARCH_S390X },
65 { "virtio-mouse-pci", "virtio-mouse", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
Alexander Graf1f68f1d2015-06-16 23:06:33 +020066 { "virtio-net-ccw", "virtio-net", QEMU_ARCH_S390X },
Sascha Silbe36e99162016-02-18 22:44:13 +010067 { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
Sascha Silbe588c36c2016-02-18 22:44:14 +010068 { "virtio-rng-ccw", "virtio-rng", QEMU_ARCH_S390X },
69 { "virtio-rng-pci", "virtio-rng", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
70 { "virtio-scsi-ccw", "virtio-scsi", QEMU_ARCH_S390X },
71 { "virtio-scsi-pci", "virtio-scsi", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
Alexander Graf1f68f1d2015-06-16 23:06:33 +020072 { "virtio-serial-ccw", "virtio-serial", QEMU_ARCH_S390X },
Sascha Silbe36e99162016-02-18 22:44:13 +010073 { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
Sascha Silbe588c36c2016-02-18 22:44:14 +010074 { "virtio-tablet-ccw", "virtio-tablet", QEMU_ARCH_S390X },
75 { "virtio-tablet-pci", "virtio-tablet", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
Anthony Liguoriee46d8a2011-12-22 15:24:20 -060076 { }
77};
78
79static const char *qdev_class_get_alias(DeviceClass *dc)
80{
81 const char *typename = object_class_get_name(OBJECT_CLASS(dc));
82 int i;
83
84 for (i = 0; qdev_alias_table[i].typename; i++) {
Alexander Graf5f629d92012-05-18 02:36:26 +020085 if (qdev_alias_table[i].arch_mask &&
86 !(qdev_alias_table[i].arch_mask & arch_type)) {
87 continue;
88 }
89
Anthony Liguoriee46d8a2011-12-22 15:24:20 -060090 if (strcmp(qdev_alias_table[i].typename, typename) == 0) {
91 return qdev_alias_table[i].alias;
92 }
93 }
94
95 return NULL;
96}
97
98static bool qdev_class_has_alias(DeviceClass *dc)
99{
100 return (qdev_class_get_alias(dc) != NULL);
101}
102
Markus Armbrustera3400ae2013-10-10 15:00:21 +0200103static void qdev_print_devinfo(DeviceClass *dc)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600104{
Markus Armbrustera3400ae2013-10-10 15:00:21 +0200105 error_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc)));
Anthony Liguori0d936922012-05-02 09:00:20 +0200106 if (dc->bus_type) {
107 error_printf(", bus %s", dc->bus_type);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600108 }
109 if (qdev_class_has_alias(dc)) {
110 error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
111 }
112 if (dc->desc) {
113 error_printf(", desc \"%s\"", dc->desc);
114 }
Markus Armbrusterefec3dd2013-11-28 17:26:54 +0100115 if (dc->cannot_instantiate_with_device_add_yet) {
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600116 error_printf(", no-user");
117 }
118 error_printf("\n");
119}
120
Markus Armbrustera3400ae2013-10-10 15:00:21 +0200121static gint devinfo_cmp(gconstpointer a, gconstpointer b)
122{
123 return strcasecmp(object_class_get_name((ObjectClass *)a),
124 object_class_get_name((ObjectClass *)b));
125}
126
127static void qdev_print_devinfos(bool show_no_user)
128{
129 static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = {
130 [DEVICE_CATEGORY_BRIDGE] = "Controller/Bridge/Hub",
131 [DEVICE_CATEGORY_USB] = "USB",
132 [DEVICE_CATEGORY_STORAGE] = "Storage",
133 [DEVICE_CATEGORY_NETWORK] = "Network",
134 [DEVICE_CATEGORY_INPUT] = "Input",
135 [DEVICE_CATEGORY_DISPLAY] = "Display",
136 [DEVICE_CATEGORY_SOUND] = "Sound",
137 [DEVICE_CATEGORY_MISC] = "Misc",
138 [DEVICE_CATEGORY_MAX] = "Uncategorized",
139 };
140 GSList *list, *elt;
141 int i;
142 bool cat_printed;
143
144 list = g_slist_sort(object_class_get_list(TYPE_DEVICE, false),
145 devinfo_cmp);
146
147 for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) {
148 cat_printed = false;
149 for (elt = list; elt; elt = elt->next) {
150 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
151 TYPE_DEVICE);
152 if ((i < DEVICE_CATEGORY_MAX
153 ? !test_bit(i, dc->categories)
154 : !bitmap_empty(dc->categories, DEVICE_CATEGORY_MAX))
Markus Armbrusterefec3dd2013-11-28 17:26:54 +0100155 || (!show_no_user
156 && dc->cannot_instantiate_with_device_add_yet)) {
Markus Armbrustera3400ae2013-10-10 15:00:21 +0200157 continue;
158 }
159 if (!cat_printed) {
160 error_printf("%s%s devices:\n", i ? "\n" : "",
161 cat_name[i]);
162 cat_printed = true;
163 }
164 qdev_print_devinfo(dc);
165 }
166 }
167
168 g_slist_free(list);
169}
170
Markus Armbruster71df1d82015-03-12 08:40:25 +0100171static int set_property(void *opaque, const char *name, const char *value,
172 Error **errp)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600173{
Paolo Bonzini98a65282014-02-08 11:01:49 +0100174 Object *obj = opaque;
Andreas Färberb1fe9bc2013-05-01 16:10:24 +0200175 Error *err = NULL;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600176
177 if (strcmp(name, "driver") == 0)
178 return 0;
179 if (strcmp(name, "bus") == 0)
180 return 0;
181
Paolo Bonzini98a65282014-02-08 11:01:49 +0100182 object_property_parse(obj, value, name, &err);
Andreas Färberb1fe9bc2013-05-01 16:10:24 +0200183 if (err != NULL) {
Markus Armbruster4caa4892015-03-12 13:58:02 +0100184 error_propagate(errp, err);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600185 return -1;
186 }
187 return 0;
188}
189
190static const char *find_typename_by_alias(const char *alias)
191{
192 int i;
193
194 for (i = 0; qdev_alias_table[i].alias; i++) {
Alexander Graf5f629d92012-05-18 02:36:26 +0200195 if (qdev_alias_table[i].arch_mask &&
196 !(qdev_alias_table[i].arch_mask & arch_type)) {
197 continue;
198 }
199
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600200 if (strcmp(qdev_alias_table[i].alias, alias) == 0) {
201 return qdev_alias_table[i].typename;
202 }
203 }
204
205 return NULL;
206}
207
Eduardo Habkost43c95d72014-11-01 13:56:09 -0200208static DeviceClass *qdev_get_device_class(const char **driver, Error **errp)
209{
210 ObjectClass *oc;
211 DeviceClass *dc;
Sascha Silbef6b53192016-02-18 22:44:12 +0100212 const char *original_name = *driver;
Eduardo Habkost43c95d72014-11-01 13:56:09 -0200213
214 oc = object_class_by_name(*driver);
215 if (!oc) {
216 const char *typename = find_typename_by_alias(*driver);
217
218 if (typename) {
219 *driver = typename;
220 oc = object_class_by_name(*driver);
221 }
222 }
223
224 if (!object_class_dynamic_cast(oc, TYPE_DEVICE)) {
Sascha Silbef6b53192016-02-18 22:44:12 +0100225 if (*driver != original_name) {
226 error_setg(errp, "'%s' (alias '%s') is not a valid device model"
227 " name", original_name, *driver);
228 } else {
229 error_setg(errp, "'%s' is not a valid device model name", *driver);
230 }
Eduardo Habkost43c95d72014-11-01 13:56:09 -0200231 return NULL;
232 }
233
234 if (object_class_is_abstract(oc)) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +0100235 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
236 "non-abstract device type");
Eduardo Habkost43c95d72014-11-01 13:56:09 -0200237 return NULL;
238 }
239
240 dc = DEVICE_CLASS(oc);
241 if (dc->cannot_instantiate_with_device_add_yet ||
242 (qdev_hotplug && !dc->hotpluggable)) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +0100243 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
244 "pluggable device type");
Eduardo Habkost43c95d72014-11-01 13:56:09 -0200245 return NULL;
246 }
247
248 return dc;
249}
250
251
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600252int qdev_device_help(QemuOpts *opts)
253{
Stefan Hajnoczief523582014-07-09 14:01:32 +0200254 Error *local_err = NULL;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600255 const char *driver;
Stefan Hajnoczief523582014-07-09 14:01:32 +0200256 DevicePropertyInfoList *prop_list;
257 DevicePropertyInfoList *prop;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600258
259 driver = qemu_opt_get(opts, "driver");
Peter Maydellc8057f92012-08-02 13:45:54 +0100260 if (driver && is_help_option(driver)) {
Markus Armbrustera3400ae2013-10-10 15:00:21 +0200261 qdev_print_devinfos(false);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600262 return 1;
263 }
264
Peter Maydellc8057f92012-08-02 13:45:54 +0100265 if (!driver || !qemu_opt_has_help_opt(opts)) {
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600266 return 0;
267 }
268
Markus Armbruster33fe9682015-10-01 10:59:59 +0200269 if (!object_class_by_name(driver)) {
270 const char *typename = find_typename_by_alias(driver);
271
272 if (typename) {
273 driver = typename;
274 }
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600275 }
276
Stefan Hajnoczief523582014-07-09 14:01:32 +0200277 prop_list = qmp_device_list_properties(driver, &local_err);
Gonglei0722eba2014-09-16 10:19:33 +0800278 if (local_err) {
Eduardo Habkost5185f0e2014-11-01 13:56:10 -0200279 goto error;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600280 }
Stefan Hajnoczief523582014-07-09 14:01:32 +0200281
282 for (prop = prop_list; prop; prop = prop->next) {
Gonglei07d09c52014-10-07 14:33:23 +0800283 error_printf("%s.%s=%s", driver,
Stefan Hajnoczief523582014-07-09 14:01:32 +0200284 prop->value->name,
285 prop->value->type);
Gonglei07d09c52014-10-07 14:33:23 +0800286 if (prop->value->has_description) {
287 error_printf(" (%s)\n", prop->value->description);
288 } else {
289 error_printf("\n");
290 }
Stefan Hajnoczief523582014-07-09 14:01:32 +0200291 }
292
293 qapi_free_DevicePropertyInfoList(prop_list);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600294 return 1;
Eduardo Habkost5185f0e2014-11-01 13:56:10 -0200295
296error:
Markus Armbruster78288672015-12-18 16:35:07 +0100297 error_report_err(local_err);
Eduardo Habkost5185f0e2014-11-01 13:56:10 -0200298 return 1;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600299}
300
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600301static Object *qdev_get_peripheral(void)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600302{
Anthony Liguori8b45d442011-12-23 09:08:05 -0600303 static Object *dev;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600304
305 if (dev == NULL) {
Andreas Färberdfe47e72012-04-05 13:21:46 +0200306 dev = container_get(qdev_get_machine(), "/peripheral");
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600307 }
308
Anthony Liguori8b45d442011-12-23 09:08:05 -0600309 return dev;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600310}
311
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600312static Object *qdev_get_peripheral_anon(void)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600313{
Anthony Liguori8b45d442011-12-23 09:08:05 -0600314 static Object *dev;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600315
316 if (dev == NULL) {
Andreas Färberdfe47e72012-04-05 13:21:46 +0200317 dev = container_get(qdev_get_machine(), "/peripheral-anon");
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600318 }
319
Anthony Liguori8b45d442011-12-23 09:08:05 -0600320 return dev;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600321}
322
Eric Blake50b7b002015-09-10 10:19:16 -0600323static void qbus_list_bus(DeviceState *dev, Error **errp)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600324{
325 BusState *child;
326 const char *sep = " ";
327
Eric Blake50b7b002015-09-10 10:19:16 -0600328 error_append_hint(errp, "child buses at \"%s\":",
329 dev->id ? dev->id : object_get_typename(OBJECT(dev)));
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600330 QLIST_FOREACH(child, &dev->child_bus, sibling) {
Eric Blake50b7b002015-09-10 10:19:16 -0600331 error_append_hint(errp, "%s\"%s\"", sep, child->name);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600332 sep = ", ";
333 }
Markus Armbruster543202c2015-12-17 17:35:14 +0100334 error_append_hint(errp, "\n");
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600335}
336
Eric Blake50b7b002015-09-10 10:19:16 -0600337static void qbus_list_dev(BusState *bus, Error **errp)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600338{
Anthony Liguori0866aca2011-12-23 15:34:39 -0600339 BusChild *kid;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600340 const char *sep = " ";
341
Eric Blake50b7b002015-09-10 10:19:16 -0600342 error_append_hint(errp, "devices at \"%s\":", bus->name);
Anthony Liguori0866aca2011-12-23 15:34:39 -0600343 QTAILQ_FOREACH(kid, &bus->children, sibling) {
344 DeviceState *dev = kid->child;
Eric Blake50b7b002015-09-10 10:19:16 -0600345 error_append_hint(errp, "%s\"%s\"", sep,
346 object_get_typename(OBJECT(dev)));
347 if (dev->id) {
348 error_append_hint(errp, "/\"%s\"", dev->id);
349 }
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600350 sep = ", ";
351 }
Markus Armbruster543202c2015-12-17 17:35:14 +0100352 error_append_hint(errp, "\n");
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600353}
354
355static BusState *qbus_find_bus(DeviceState *dev, char *elem)
356{
357 BusState *child;
358
359 QLIST_FOREACH(child, &dev->child_bus, sibling) {
360 if (strcmp(child->name, elem) == 0) {
361 return child;
362 }
363 }
364 return NULL;
365}
366
367static DeviceState *qbus_find_dev(BusState *bus, char *elem)
368{
Anthony Liguori0866aca2011-12-23 15:34:39 -0600369 BusChild *kid;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600370
371 /*
372 * try to match in order:
373 * (1) instance id, if present
374 * (2) driver name
375 * (3) driver alias, if present
376 */
Anthony Liguori0866aca2011-12-23 15:34:39 -0600377 QTAILQ_FOREACH(kid, &bus->children, sibling) {
378 DeviceState *dev = kid->child;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600379 if (dev->id && strcmp(dev->id, elem) == 0) {
380 return dev;
381 }
382 }
Anthony Liguori0866aca2011-12-23 15:34:39 -0600383 QTAILQ_FOREACH(kid, &bus->children, sibling) {
384 DeviceState *dev = kid->child;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600385 if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) {
386 return dev;
387 }
388 }
Anthony Liguori0866aca2011-12-23 15:34:39 -0600389 QTAILQ_FOREACH(kid, &bus->children, sibling) {
390 DeviceState *dev = kid->child;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600391 DeviceClass *dc = DEVICE_GET_CLASS(dev);
392
393 if (qdev_class_has_alias(dc) &&
394 strcmp(qdev_class_get_alias(dc), elem) == 0) {
395 return dev;
396 }
397 }
398 return NULL;
399}
400
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100401static inline bool qbus_is_full(BusState *bus)
402{
403 BusClass *bus_class = BUS_GET_CLASS(bus);
404 return bus_class->max_dev && bus->max_index >= bus_class->max_dev;
405}
406
407/*
408 * Search the tree rooted at @bus for a bus.
409 * If @name, search for a bus with that name. Note that bus names
410 * need not be unique. Yes, that's screwed up.
411 * Else search for a bus that is a subtype of @bus_typename.
412 * If more than one exists, prefer one that can take another device.
413 * Return the bus if found, else %NULL.
414 */
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600415static BusState *qbus_find_recursive(BusState *bus, const char *name,
Anthony Liguori0d936922012-05-02 09:00:20 +0200416 const char *bus_typename)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600417{
Anthony Liguori0866aca2011-12-23 15:34:39 -0600418 BusChild *kid;
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100419 BusState *pick, *child, *ret;
420 bool match;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600421
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100422 assert(name || bus_typename);
423 if (name) {
424 match = !strcmp(bus->name, name);
425 } else {
426 match = !!object_dynamic_cast(OBJECT(bus), bus_typename);
KONRAD Frederic1395af62013-01-15 00:08:00 +0100427 }
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100428
429 if (match && !qbus_is_full(bus)) {
430 return bus; /* root matches and isn't full */
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600431 }
432
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100433 pick = match ? bus : NULL;
434
Anthony Liguori0866aca2011-12-23 15:34:39 -0600435 QTAILQ_FOREACH(kid, &bus->children, sibling) {
436 DeviceState *dev = kid->child;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600437 QLIST_FOREACH(child, &dev->child_bus, sibling) {
Anthony Liguori0d936922012-05-02 09:00:20 +0200438 ret = qbus_find_recursive(child, name, bus_typename);
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100439 if (ret && !qbus_is_full(ret)) {
440 return ret; /* a descendant matches and isn't full */
441 }
442 if (ret && !pick) {
443 pick = ret;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600444 }
445 }
446 }
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100447
448 /* root or a descendant matches, but is full */
449 return pick;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600450}
451
Markus Armbrusterd2828422015-03-11 19:16:04 +0100452static BusState *qbus_find(const char *path, Error **errp)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600453{
454 DeviceState *dev;
455 BusState *bus;
456 char elem[128];
457 int pos, len;
458
459 /* find start element */
460 if (path[0] == '/') {
461 bus = sysbus_get_default();
462 pos = 0;
463 } else {
464 if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
465 assert(!path[0]);
466 elem[0] = len = 0;
467 }
468 bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
469 if (!bus) {
Markus Armbrusterd2828422015-03-11 19:16:04 +0100470 error_setg(errp, "Bus '%s' not found", elem);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600471 return NULL;
472 }
473 pos = len;
474 }
475
476 for (;;) {
477 assert(path[pos] == '/' || !path[pos]);
478 while (path[pos] == '/') {
479 pos++;
480 }
481 if (path[pos] == '\0') {
Markus Armbrustered238ba2015-03-11 18:39:16 +0100482 break;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600483 }
484
485 /* find device */
486 if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
Stefan Weildfc6f862013-07-25 18:21:28 +0200487 g_assert_not_reached();
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600488 elem[0] = len = 0;
489 }
490 pos += len;
491 dev = qbus_find_dev(bus, elem);
492 if (!dev) {
Markus Armbruster75158eb2015-03-16 08:57:47 +0100493 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
494 "Device '%s' not found", elem);
Eric Blake50b7b002015-09-10 10:19:16 -0600495 qbus_list_dev(bus, errp);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600496 return NULL;
497 }
498
499 assert(path[pos] == '/' || !path[pos]);
500 while (path[pos] == '/') {
501 pos++;
502 }
503 if (path[pos] == '\0') {
504 /* last specified element is a device. If it has exactly
505 * one child bus accept it nevertheless */
Markus Armbrustered238ba2015-03-11 18:39:16 +0100506 if (dev->num_child_bus == 1) {
507 bus = QLIST_FIRST(&dev->child_bus);
508 break;
509 }
510 if (dev->num_child_bus) {
Markus Armbrusterd2828422015-03-11 19:16:04 +0100511 error_setg(errp, "Device '%s' has multiple child buses",
512 elem);
Eric Blake50b7b002015-09-10 10:19:16 -0600513 qbus_list_bus(dev, errp);
Markus Armbrustered238ba2015-03-11 18:39:16 +0100514 } else {
Markus Armbrusterd2828422015-03-11 19:16:04 +0100515 error_setg(errp, "Device '%s' has no child bus", elem);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600516 }
Markus Armbrustered238ba2015-03-11 18:39:16 +0100517 return NULL;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600518 }
519
520 /* find bus */
521 if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
Stefan Weildfc6f862013-07-25 18:21:28 +0200522 g_assert_not_reached();
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600523 elem[0] = len = 0;
524 }
525 pos += len;
526 bus = qbus_find_bus(dev, elem);
527 if (!bus) {
Markus Armbrusterd2828422015-03-11 19:16:04 +0100528 error_setg(errp, "Bus '%s' not found", elem);
Eric Blake50b7b002015-09-10 10:19:16 -0600529 qbus_list_bus(dev, errp);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600530 return NULL;
531 }
532 }
Markus Armbrustered238ba2015-03-11 18:39:16 +0100533
534 if (qbus_is_full(bus)) {
Markus Armbrusterd2828422015-03-11 19:16:04 +0100535 error_setg(errp, "Bus '%s' is full", path);
Markus Armbrustered238ba2015-03-11 18:39:16 +0100536 return NULL;
537 }
538 return bus;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600539}
540
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100541DeviceState *qdev_device_add(QemuOpts *opts, Error **errp)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600542{
Andreas Färberf4d85792013-08-24 01:21:22 +0200543 DeviceClass *dc;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600544 const char *driver, *path, *id;
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200545 DeviceState *dev;
Andreas Färber2f7bd822013-04-16 03:50:21 +0200546 BusState *bus = NULL;
Andreas Färber852e2c52013-10-07 16:42:34 +0200547 Error *err = NULL;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600548
549 driver = qemu_opt_get(opts, "driver");
550 if (!driver) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +0100551 error_setg(errp, QERR_MISSING_PARAMETER, "driver");
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600552 return NULL;
553 }
554
555 /* find driver */
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100556 dc = qdev_get_device_class(&driver, errp);
557 if (!dc) {
Markus Armbruster7ea5e782013-11-28 17:27:03 +0100558 return NULL;
559 }
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600560
561 /* find bus */
562 path = qemu_opt_get(opts, "bus");
563 if (path != NULL) {
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100564 bus = qbus_find(path, errp);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600565 if (!bus) {
566 return NULL;
567 }
Andreas Färberf4d85792013-08-24 01:21:22 +0200568 if (!object_dynamic_cast(OBJECT(bus), dc->bus_type)) {
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100569 error_setg(errp, "Device '%s' can't go on %s bus",
570 driver, object_get_typename(OBJECT(bus)));
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600571 return NULL;
572 }
Andreas Färberf4d85792013-08-24 01:21:22 +0200573 } else if (dc->bus_type != NULL) {
574 bus = qbus_find_recursive(sysbus_get_default(), NULL, dc->bus_type);
Markus Armbrustera5ec4942015-03-11 17:26:31 +0100575 if (!bus || qbus_is_full(bus)) {
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100576 error_setg(errp, "No '%s' bus found for device '%s'",
577 dc->bus_type, driver);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600578 return NULL;
579 }
580 }
Igor Mammedov39b888b2014-09-26 09:28:17 +0000581 if (qdev_hotplug && bus && !qbus_is_hotpluggable(bus)) {
Markus Armbrusterc6bd8c72015-03-17 11:54:50 +0100582 error_setg(errp, QERR_BUS_NO_HOTPLUG, bus->name);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600583 return NULL;
584 }
585
Amos Kong7b030942014-03-03 15:57:55 +0800586 /* create device */
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200587 dev = DEVICE(object_new(driver));
Andreas Färber2f7bd822013-04-16 03:50:21 +0200588
589 if (bus) {
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200590 qdev_set_parent_bus(dev, bus);
Andreas Färber2f7bd822013-04-16 03:50:21 +0200591 }
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600592
593 id = qemu_opts_id(opts);
594 if (id) {
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200595 dev->id = id;
Anthony Liguorib2d4b3f2012-02-12 11:36:24 -0600596 }
Amos Kong7b030942014-03-03 15:57:55 +0800597
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200598 if (dev->id) {
599 object_property_add_child(qdev_get_peripheral(), dev->id,
600 OBJECT(dev), NULL);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600601 } else {
602 static int anon_count;
603 gchar *name = g_strdup_printf("device[%d]", anon_count++);
Anthony Liguori57c9faf2012-01-30 08:55:55 -0600604 object_property_add_child(qdev_get_peripheral_anon(), name,
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200605 OBJECT(dev), NULL);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600606 g_free(name);
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200607 }
Bandan Das52aa17c2014-02-26 10:32:40 -0700608
Amos Kong7b030942014-03-03 15:57:55 +0800609 /* set properties */
Markus Armbruster4caa4892015-03-12 13:58:02 +0100610 if (qemu_opt_foreach(opts, set_property, dev, &err)) {
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100611 error_propagate(errp, err);
Amos Kong7b030942014-03-03 15:57:55 +0800612 object_unparent(OBJECT(dev));
613 object_unref(OBJECT(dev));
614 return NULL;
615 }
616
Bandan Das52aa17c2014-02-26 10:32:40 -0700617 dev->opts = opts;
Andreas Färber852e2c52013-10-07 16:42:34 +0200618 object_property_set_bool(OBJECT(dev), true, "realized", &err);
619 if (err != NULL) {
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100620 error_propagate(errp, err);
Bandan Das52aa17c2014-02-26 10:32:40 -0700621 dev->opts = NULL;
Andreas Färber852e2c52013-10-07 16:42:34 +0200622 object_unparent(OBJECT(dev));
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200623 object_unref(OBJECT(dev));
Paolo Bonzinif424d5c2012-03-27 18:38:46 +0200624 return NULL;
625 }
Andreas Färber2bcb0c62013-10-07 16:17:54 +0200626 return dev;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600627}
628
629
630#define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
631static void qbus_print(Monitor *mon, BusState *bus, int indent);
632
633static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
Paolo Bonzinibce54472012-03-28 18:12:47 +0200634 int indent)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600635{
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600636 if (!props)
637 return;
Paolo Bonzinid8229792012-02-02 09:47:13 +0100638 for (; props->name; props++) {
639 Error *err = NULL;
640 char *value;
641 char *legacy_name = g_strdup_printf("legacy-%s", props->name);
642 if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) {
643 value = object_property_get_str(OBJECT(dev), legacy_name, &err);
644 } else {
Paolo Bonzinidae3bda2014-02-08 11:01:51 +0100645 value = object_property_print(OBJECT(dev), props->name, true, &err);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600646 }
Paolo Bonzinid8229792012-02-02 09:47:13 +0100647 g_free(legacy_name);
648
649 if (err) {
650 error_free(err);
651 continue;
652 }
Paolo Bonzinibce54472012-03-28 18:12:47 +0200653 qdev_printf("%s = %s\n", props->name,
Paolo Bonzinid8229792012-02-02 09:47:13 +0100654 value && *value ? value : "<null>");
655 g_free(value);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600656 }
657}
658
Anthony Liguori0d936922012-05-02 09:00:20 +0200659static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent)
660{
661 BusClass *bc = BUS_GET_CLASS(bus);
662
663 if (bc->print_dev) {
664 bc->print_dev(mon, dev, indent);
665 }
666}
667
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600668static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
669{
Paolo Bonzinibce54472012-03-28 18:12:47 +0200670 ObjectClass *class;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600671 BusState *child;
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700672 NamedGPIOList *ngl;
673
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600674 qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
675 dev->id ? dev->id : "");
676 indent += 2;
Peter Crosthwaitea5f54292014-05-19 23:30:58 -0700677 QLIST_FOREACH(ngl, &dev->gpios, node) {
678 if (ngl->num_in) {
679 qdev_printf("gpio-in \"%s\" %d\n", ngl->name ? ngl->name : "",
680 ngl->num_in);
681 }
682 if (ngl->num_out) {
683 qdev_printf("gpio-out \"%s\" %d\n", ngl->name ? ngl->name : "",
684 ngl->num_out);
685 }
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600686 }
Paolo Bonzinibce54472012-03-28 18:12:47 +0200687 class = object_get_class(OBJECT(dev));
688 do {
689 qdev_print_props(mon, dev, DEVICE_CLASS(class)->props, indent);
690 class = object_class_get_parent(class);
691 } while (class != object_class_by_name(TYPE_DEVICE));
Gerd Hoffmannda9fbe72012-07-11 12:21:23 +0200692 bus_print_dev(dev->parent_bus, mon, dev, indent);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600693 QLIST_FOREACH(child, &dev->child_bus, sibling) {
694 qbus_print(mon, child, indent);
695 }
696}
697
698static void qbus_print(Monitor *mon, BusState *bus, int indent)
699{
Anthony Liguori0866aca2011-12-23 15:34:39 -0600700 BusChild *kid;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600701
702 qdev_printf("bus: %s\n", bus->name);
703 indent += 2;
Anthony Liguori0d936922012-05-02 09:00:20 +0200704 qdev_printf("type %s\n", object_get_typename(OBJECT(bus)));
Anthony Liguori0866aca2011-12-23 15:34:39 -0600705 QTAILQ_FOREACH(kid, &bus->children, sibling) {
706 DeviceState *dev = kid->child;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600707 qdev_print(mon, dev, indent);
708 }
709}
710#undef qdev_printf
711
Markus Armbruster1ce6be22015-02-06 14:18:24 +0100712void hmp_info_qtree(Monitor *mon, const QDict *qdict)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600713{
714 if (sysbus_get_default())
715 qbus_print(mon, sysbus_get_default(), 0);
716}
717
Markus Armbruster1ce6be22015-02-06 14:18:24 +0100718void hmp_info_qdm(Monitor *mon, const QDict *qdict)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600719{
Markus Armbrustera3400ae2013-10-10 15:00:21 +0200720 qdev_print_devinfos(true);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600721}
722
Andreas Färbera01ff752014-05-07 17:03:18 +0200723typedef struct QOMCompositionState {
724 Monitor *mon;
725 int indent;
726} QOMCompositionState;
727
728static void print_qom_composition(Monitor *mon, Object *obj, int indent);
729
730static int print_qom_composition_child(Object *obj, void *opaque)
731{
732 QOMCompositionState *s = opaque;
733
734 print_qom_composition(s->mon, obj, s->indent);
735
736 return 0;
737}
738
739static void print_qom_composition(Monitor *mon, Object *obj, int indent)
740{
741 QOMCompositionState s = {
742 .mon = mon,
743 .indent = indent + 2,
744 };
745 char *name;
746
747 if (obj == object_get_root()) {
748 name = g_strdup("");
749 } else {
750 name = object_get_canonical_path_component(obj);
751 }
752 monitor_printf(mon, "%*s/%s (%s)\n", indent, "", name,
753 object_get_typename(obj));
754 g_free(name);
755 object_child_foreach(obj, print_qom_composition_child, &s);
756}
757
758void hmp_info_qom_tree(Monitor *mon, const QDict *dict)
759{
760 const char *path = qdict_get_try_str(dict, "path");
761 Object *obj;
762 bool ambiguous = false;
763
764 if (path) {
765 obj = object_resolve_path(path, &ambiguous);
766 if (!obj) {
767 monitor_printf(mon, "Path '%s' could not be resolved.\n", path);
768 return;
769 }
770 if (ambiguous) {
771 monitor_printf(mon, "Warning: Path '%s' is ambiguous.\n", path);
772 return;
773 }
774 } else {
775 obj = qdev_get_machine();
776 }
777 print_qom_composition(mon, obj, 0);
778}
779
Markus Armbruster485febc2015-03-13 17:25:50 +0100780void qmp_device_add(QDict *qdict, QObject **ret_data, Error **errp)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600781{
Luiz Capitulino4e899782012-04-18 17:24:01 -0300782 Error *local_err = NULL;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600783 QemuOpts *opts;
Paolo Bonzinib09995a2013-01-25 14:12:37 +0100784 DeviceState *dev;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600785
Luiz Capitulino4e899782012-04-18 17:24:01 -0300786 opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, &local_err);
Markus Armbruster84d18f02014-01-30 15:07:28 +0100787 if (local_err) {
Markus Armbruster485febc2015-03-13 17:25:50 +0100788 error_propagate(errp, local_err);
789 return;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600790 }
791 if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
792 qemu_opts_del(opts);
Markus Armbruster485febc2015-03-13 17:25:50 +0100793 return;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600794 }
Markus Armbrusterf006cf72015-03-12 14:00:41 +0100795 dev = qdev_device_add(opts, &local_err);
Paolo Bonzinib09995a2013-01-25 14:12:37 +0100796 if (!dev) {
Markus Armbruster485febc2015-03-13 17:25:50 +0100797 error_propagate(errp, local_err);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600798 qemu_opts_del(opts);
Markus Armbruster485febc2015-03-13 17:25:50 +0100799 return;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600800 }
Paolo Bonzinib09995a2013-01-25 14:12:37 +0100801 object_unref(OBJECT(dev));
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600802}
803
Luiz Capitulinoa15fef22012-03-29 12:38:50 -0300804void qmp_device_del(const char *id, Error **errp)
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600805{
Igor Mammedovb6cc36a2014-10-02 10:08:45 +0000806 Object *obj;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600807
Daniel P. Berrange6287d822015-09-11 13:33:56 +0100808 if (id[0] == '/') {
809 obj = object_resolve_path(id, NULL);
810 } else {
811 char *root_path = object_get_canonical_path(qdev_get_peripheral());
812 char *path = g_strdup_printf("%s/%s", root_path, id);
813
814 g_free(root_path);
815 obj = object_resolve_path_type(path, TYPE_DEVICE, NULL);
816 g_free(path);
817 }
Igor Mammedovb6cc36a2014-10-02 10:08:45 +0000818
819 if (!obj) {
Markus Armbruster75158eb2015-03-16 08:57:47 +0100820 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
821 "Device '%s' not found", id);
Luiz Capitulinoa15fef22012-03-29 12:38:50 -0300822 return;
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600823 }
Luiz Capitulino56f91072012-03-14 17:37:38 -0300824
Daniel P. Berrange6287d822015-09-11 13:33:56 +0100825 if (!object_dynamic_cast(obj, TYPE_DEVICE)) {
826 error_setg(errp, "%s is not a hotpluggable device", id);
827 return;
828 }
829
Igor Mammedovb6cc36a2014-10-02 10:08:45 +0000830 qdev_unplug(DEVICE(obj), errp);
Anthony Liguoriee46d8a2011-12-22 15:24:20 -0600831}
832
833void qdev_machine_init(void)
834{
835 qdev_get_peripheral_anon();
836 qdev_get_peripheral();
837}
Paolo Bonzini4d454572012-11-26 16:03:42 +0100838
839QemuOptsList qemu_device_opts = {
840 .name = "device",
841 .implied_opt_name = "driver",
842 .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
843 .desc = {
844 /*
845 * no elements => accept any
846 * sanity checking will happen later
847 * when setting device properties
848 */
849 { /* end of list */ }
850 },
851};
852
853QemuOptsList qemu_global_opts = {
854 .name = "global",
855 .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
856 .desc = {
857 {
858 .name = "driver",
859 .type = QEMU_OPT_STRING,
860 },{
861 .name = "property",
862 .type = QEMU_OPT_STRING,
863 },{
864 .name = "value",
865 .type = QEMU_OPT_STRING,
866 },
867 { /* end of list */ }
868 },
869};
870
871int qemu_global_option(const char *str)
872{
873 char driver[64], property[64];
874 QemuOpts *opts;
875 int rc, offset;
876
Paolo Bonzini3751d7c2015-04-09 14:16:19 +0200877 rc = sscanf(str, "%63[^.=].%63[^=]%n", driver, property, &offset);
878 if (rc == 2 && str[offset] == '=') {
879 opts = qemu_opts_create(&qemu_global_opts, NULL, 0, &error_abort);
880 qemu_opt_set(opts, "driver", driver, &error_abort);
881 qemu_opt_set(opts, "property", property, &error_abort);
882 qemu_opt_set(opts, "value", str + offset + 1, &error_abort);
883 return 0;
884 }
885
Markus Armbruster70b94332015-02-13 12:50:26 +0100886 opts = qemu_opts_parse_noisily(&qemu_global_opts, str, false);
Paolo Bonzini3751d7c2015-04-09 14:16:19 +0200887 if (!opts) {
Paolo Bonzini4d454572012-11-26 16:03:42 +0100888 return -1;
889 }
890
Paolo Bonzini4d454572012-11-26 16:03:42 +0100891 return 0;
892}