cirrus: Mark vga io region as coalesced MMIO flushing
[qemu/ar7.git] / qdev-monitor.c
bloba02c925cb30fc55bc986c5fd019f01e908fe74c2
1 /*
2 * Dynamic device configuration and creation.
4 * Copyright (c) 2009 CodeSourcery
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.
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.
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/>.
20 #include "hw/qdev.h"
21 #include "hw/sysbus.h"
22 #include "monitor/monitor.h"
23 #include "monitor/qdev.h"
24 #include "qmp-commands.h"
25 #include "sysemu/arch_init.h"
26 #include "qemu/config-file.h"
29 * Aliases were a bad idea from the start. Let's keep them
30 * from spreading further.
32 typedef struct QDevAlias
34 const char *typename;
35 const char *alias;
36 uint32_t arch_mask;
37 } QDevAlias;
39 static const QDevAlias qdev_alias_table[] = {
40 { "virtio-blk-pci", "virtio-blk", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
41 { "virtio-net-pci", "virtio-net", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
42 { "virtio-serial-pci", "virtio-serial", QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
43 { "virtio-balloon-pci", "virtio-balloon",
44 QEMU_ARCH_ALL & ~QEMU_ARCH_S390X },
45 { "virtio-blk-s390", "virtio-blk", QEMU_ARCH_S390X },
46 { "virtio-net-s390", "virtio-net", QEMU_ARCH_S390X },
47 { "virtio-serial-s390", "virtio-serial", QEMU_ARCH_S390X },
48 { "lsi53c895a", "lsi" },
49 { "ich9-ahci", "ahci" },
50 { "kvm-pci-assign", "pci-assign" },
51 { }
54 static const char *qdev_class_get_alias(DeviceClass *dc)
56 const char *typename = object_class_get_name(OBJECT_CLASS(dc));
57 int i;
59 for (i = 0; qdev_alias_table[i].typename; i++) {
60 if (qdev_alias_table[i].arch_mask &&
61 !(qdev_alias_table[i].arch_mask & arch_type)) {
62 continue;
65 if (strcmp(qdev_alias_table[i].typename, typename) == 0) {
66 return qdev_alias_table[i].alias;
70 return NULL;
73 static bool qdev_class_has_alias(DeviceClass *dc)
75 return (qdev_class_get_alias(dc) != NULL);
78 static void qdev_print_devinfo(DeviceClass *dc)
80 error_printf("name \"%s\"", object_class_get_name(OBJECT_CLASS(dc)));
81 if (dc->bus_type) {
82 error_printf(", bus %s", dc->bus_type);
84 if (qdev_class_has_alias(dc)) {
85 error_printf(", alias \"%s\"", qdev_class_get_alias(dc));
87 if (dc->desc) {
88 error_printf(", desc \"%s\"", dc->desc);
90 if (dc->no_user) {
91 error_printf(", no-user");
93 error_printf("\n");
96 static gint devinfo_cmp(gconstpointer a, gconstpointer b)
98 return strcasecmp(object_class_get_name((ObjectClass *)a),
99 object_class_get_name((ObjectClass *)b));
102 static void qdev_print_devinfos(bool show_no_user)
104 static const char *cat_name[DEVICE_CATEGORY_MAX + 1] = {
105 [DEVICE_CATEGORY_BRIDGE] = "Controller/Bridge/Hub",
106 [DEVICE_CATEGORY_USB] = "USB",
107 [DEVICE_CATEGORY_STORAGE] = "Storage",
108 [DEVICE_CATEGORY_NETWORK] = "Network",
109 [DEVICE_CATEGORY_INPUT] = "Input",
110 [DEVICE_CATEGORY_DISPLAY] = "Display",
111 [DEVICE_CATEGORY_SOUND] = "Sound",
112 [DEVICE_CATEGORY_MISC] = "Misc",
113 [DEVICE_CATEGORY_MAX] = "Uncategorized",
115 GSList *list, *elt;
116 int i;
117 bool cat_printed;
119 list = g_slist_sort(object_class_get_list(TYPE_DEVICE, false),
120 devinfo_cmp);
122 for (i = 0; i <= DEVICE_CATEGORY_MAX; i++) {
123 cat_printed = false;
124 for (elt = list; elt; elt = elt->next) {
125 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
126 TYPE_DEVICE);
127 if ((i < DEVICE_CATEGORY_MAX
128 ? !test_bit(i, dc->categories)
129 : !bitmap_empty(dc->categories, DEVICE_CATEGORY_MAX))
130 || (!show_no_user && dc->no_user)) {
131 continue;
133 if (!cat_printed) {
134 error_printf("%s%s devices:\n", i ? "\n" : "",
135 cat_name[i]);
136 cat_printed = true;
138 qdev_print_devinfo(dc);
142 g_slist_free(list);
145 static int set_property(const char *name, const char *value, void *opaque)
147 DeviceState *dev = opaque;
148 Error *err = NULL;
150 if (strcmp(name, "driver") == 0)
151 return 0;
152 if (strcmp(name, "bus") == 0)
153 return 0;
155 qdev_prop_parse(dev, name, value, &err);
156 if (err != NULL) {
157 qerror_report_err(err);
158 error_free(err);
159 return -1;
161 return 0;
164 static const char *find_typename_by_alias(const char *alias)
166 int i;
168 for (i = 0; qdev_alias_table[i].alias; i++) {
169 if (qdev_alias_table[i].arch_mask &&
170 !(qdev_alias_table[i].arch_mask & arch_type)) {
171 continue;
174 if (strcmp(qdev_alias_table[i].alias, alias) == 0) {
175 return qdev_alias_table[i].typename;
179 return NULL;
182 int qdev_device_help(QemuOpts *opts)
184 const char *driver;
185 Property *prop;
186 ObjectClass *klass;
188 driver = qemu_opt_get(opts, "driver");
189 if (driver && is_help_option(driver)) {
190 qdev_print_devinfos(false);
191 return 1;
194 if (!driver || !qemu_opt_has_help_opt(opts)) {
195 return 0;
198 klass = object_class_by_name(driver);
199 if (!klass) {
200 const char *typename = find_typename_by_alias(driver);
202 if (typename) {
203 driver = typename;
204 klass = object_class_by_name(driver);
208 if (!klass) {
209 return 0;
211 do {
212 for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
214 * TODO Properties without a parser are just for dirty hacks.
215 * qdev_prop_ptr is the only such PropertyInfo. It's marked
216 * for removal. This conditional should be removed along with
217 * it.
219 if (!prop->info->set) {
220 continue; /* no way to set it, don't show */
222 error_printf("%s.%s=%s\n", driver, prop->name,
223 prop->info->legacy_name ?: prop->info->name);
225 klass = object_class_get_parent(klass);
226 } while (klass != object_class_by_name(TYPE_DEVICE));
227 return 1;
230 static Object *qdev_get_peripheral(void)
232 static Object *dev;
234 if (dev == NULL) {
235 dev = container_get(qdev_get_machine(), "/peripheral");
238 return dev;
241 static Object *qdev_get_peripheral_anon(void)
243 static Object *dev;
245 if (dev == NULL) {
246 dev = container_get(qdev_get_machine(), "/peripheral-anon");
249 return dev;
252 static void qbus_list_bus(DeviceState *dev)
254 BusState *child;
255 const char *sep = " ";
257 error_printf("child busses at \"%s\":",
258 dev->id ? dev->id : object_get_typename(OBJECT(dev)));
259 QLIST_FOREACH(child, &dev->child_bus, sibling) {
260 error_printf("%s\"%s\"", sep, child->name);
261 sep = ", ";
263 error_printf("\n");
266 static void qbus_list_dev(BusState *bus)
268 BusChild *kid;
269 const char *sep = " ";
271 error_printf("devices at \"%s\":", bus->name);
272 QTAILQ_FOREACH(kid, &bus->children, sibling) {
273 DeviceState *dev = kid->child;
274 error_printf("%s\"%s\"", sep, object_get_typename(OBJECT(dev)));
275 if (dev->id)
276 error_printf("/\"%s\"", dev->id);
277 sep = ", ";
279 error_printf("\n");
282 static BusState *qbus_find_bus(DeviceState *dev, char *elem)
284 BusState *child;
286 QLIST_FOREACH(child, &dev->child_bus, sibling) {
287 if (strcmp(child->name, elem) == 0) {
288 return child;
291 return NULL;
294 static DeviceState *qbus_find_dev(BusState *bus, char *elem)
296 BusChild *kid;
299 * try to match in order:
300 * (1) instance id, if present
301 * (2) driver name
302 * (3) driver alias, if present
304 QTAILQ_FOREACH(kid, &bus->children, sibling) {
305 DeviceState *dev = kid->child;
306 if (dev->id && strcmp(dev->id, elem) == 0) {
307 return dev;
310 QTAILQ_FOREACH(kid, &bus->children, sibling) {
311 DeviceState *dev = kid->child;
312 if (strcmp(object_get_typename(OBJECT(dev)), elem) == 0) {
313 return dev;
316 QTAILQ_FOREACH(kid, &bus->children, sibling) {
317 DeviceState *dev = kid->child;
318 DeviceClass *dc = DEVICE_GET_CLASS(dev);
320 if (qdev_class_has_alias(dc) &&
321 strcmp(qdev_class_get_alias(dc), elem) == 0) {
322 return dev;
325 return NULL;
328 static BusState *qbus_find_recursive(BusState *bus, const char *name,
329 const char *bus_typename)
331 BusClass *bus_class = BUS_GET_CLASS(bus);
332 BusChild *kid;
333 BusState *child, *ret;
334 int match = 1;
336 if (name && (strcmp(bus->name, name) != 0)) {
337 match = 0;
338 } else if (bus_typename && !object_dynamic_cast(OBJECT(bus), bus_typename)) {
339 match = 0;
340 } else if ((bus_class->max_dev != 0) && (bus_class->max_dev <= bus->max_index)) {
341 if (name != NULL) {
342 /* bus was explicitly specified: return an error. */
343 qerror_report(ERROR_CLASS_GENERIC_ERROR, "Bus '%s' is full",
344 bus->name);
345 return NULL;
346 } else {
347 /* bus was not specified: try to find another one. */
348 match = 0;
351 if (match) {
352 return bus;
355 QTAILQ_FOREACH(kid, &bus->children, sibling) {
356 DeviceState *dev = kid->child;
357 QLIST_FOREACH(child, &dev->child_bus, sibling) {
358 ret = qbus_find_recursive(child, name, bus_typename);
359 if (ret) {
360 return ret;
364 return NULL;
367 static BusState *qbus_find(const char *path)
369 DeviceState *dev;
370 BusState *bus;
371 char elem[128];
372 int pos, len;
374 /* find start element */
375 if (path[0] == '/') {
376 bus = sysbus_get_default();
377 pos = 0;
378 } else {
379 if (sscanf(path, "%127[^/]%n", elem, &len) != 1) {
380 assert(!path[0]);
381 elem[0] = len = 0;
383 bus = qbus_find_recursive(sysbus_get_default(), elem, NULL);
384 if (!bus) {
385 qerror_report(QERR_BUS_NOT_FOUND, elem);
386 return NULL;
388 pos = len;
391 for (;;) {
392 assert(path[pos] == '/' || !path[pos]);
393 while (path[pos] == '/') {
394 pos++;
396 if (path[pos] == '\0') {
397 return bus;
400 /* find device */
401 if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
402 g_assert_not_reached();
403 elem[0] = len = 0;
405 pos += len;
406 dev = qbus_find_dev(bus, elem);
407 if (!dev) {
408 qerror_report(QERR_DEVICE_NOT_FOUND, elem);
409 if (!monitor_cur_is_qmp()) {
410 qbus_list_dev(bus);
412 return NULL;
415 assert(path[pos] == '/' || !path[pos]);
416 while (path[pos] == '/') {
417 pos++;
419 if (path[pos] == '\0') {
420 /* last specified element is a device. If it has exactly
421 * one child bus accept it nevertheless */
422 switch (dev->num_child_bus) {
423 case 0:
424 qerror_report(QERR_DEVICE_NO_BUS, elem);
425 return NULL;
426 case 1:
427 return QLIST_FIRST(&dev->child_bus);
428 default:
429 qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem);
430 if (!monitor_cur_is_qmp()) {
431 qbus_list_bus(dev);
433 return NULL;
437 /* find bus */
438 if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) {
439 g_assert_not_reached();
440 elem[0] = len = 0;
442 pos += len;
443 bus = qbus_find_bus(dev, elem);
444 if (!bus) {
445 qerror_report(QERR_BUS_NOT_FOUND, elem);
446 if (!monitor_cur_is_qmp()) {
447 qbus_list_bus(dev);
449 return NULL;
454 DeviceState *qdev_device_add(QemuOpts *opts)
456 ObjectClass *obj;
457 DeviceClass *k;
458 const char *driver, *path, *id;
459 DeviceState *qdev;
460 BusState *bus = NULL;
462 driver = qemu_opt_get(opts, "driver");
463 if (!driver) {
464 qerror_report(QERR_MISSING_PARAMETER, "driver");
465 return NULL;
468 /* find driver */
469 obj = object_class_by_name(driver);
470 if (!obj) {
471 const char *typename = find_typename_by_alias(driver);
473 if (typename) {
474 driver = typename;
475 obj = object_class_by_name(driver);
479 if (!obj) {
480 qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "device type");
481 return NULL;
484 k = DEVICE_CLASS(obj);
486 /* find bus */
487 path = qemu_opt_get(opts, "bus");
488 if (path != NULL) {
489 bus = qbus_find(path);
490 if (!bus) {
491 return NULL;
493 if (!object_dynamic_cast(OBJECT(bus), k->bus_type)) {
494 qerror_report(QERR_BAD_BUS_FOR_DEVICE,
495 driver, object_get_typename(OBJECT(bus)));
496 return NULL;
498 } else if (k->bus_type != NULL) {
499 bus = qbus_find_recursive(sysbus_get_default(), NULL, k->bus_type);
500 if (!bus) {
501 qerror_report(QERR_NO_BUS_FOR_DEVICE,
502 k->bus_type, driver);
503 return NULL;
506 if (qdev_hotplug && bus && !bus->allow_hotplug) {
507 qerror_report(QERR_BUS_NO_HOTPLUG, bus->name);
508 return NULL;
511 /* create device, set properties */
512 qdev = DEVICE(object_new(driver));
514 if (bus) {
515 qdev_set_parent_bus(qdev, bus);
518 id = qemu_opts_id(opts);
519 if (id) {
520 qdev->id = id;
522 if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) {
523 qdev_free(qdev);
524 return NULL;
526 if (qdev->id) {
527 object_property_add_child(qdev_get_peripheral(), qdev->id,
528 OBJECT(qdev), NULL);
529 } else {
530 static int anon_count;
531 gchar *name = g_strdup_printf("device[%d]", anon_count++);
532 object_property_add_child(qdev_get_peripheral_anon(), name,
533 OBJECT(qdev), NULL);
534 g_free(name);
536 if (qdev_init(qdev) < 0) {
537 qerror_report(QERR_DEVICE_INIT_FAILED, driver);
538 return NULL;
540 qdev->opts = opts;
541 return qdev;
545 #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__)
546 static void qbus_print(Monitor *mon, BusState *bus, int indent);
548 static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props,
549 int indent)
551 if (!props)
552 return;
553 for (; props->name; props++) {
554 Error *err = NULL;
555 char *value;
556 char *legacy_name = g_strdup_printf("legacy-%s", props->name);
557 if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) {
558 value = object_property_get_str(OBJECT(dev), legacy_name, &err);
559 } else {
560 value = object_property_print(OBJECT(dev), props->name, &err);
562 g_free(legacy_name);
564 if (err) {
565 error_free(err);
566 continue;
568 qdev_printf("%s = %s\n", props->name,
569 value && *value ? value : "<null>");
570 g_free(value);
574 static void bus_print_dev(BusState *bus, Monitor *mon, DeviceState *dev, int indent)
576 BusClass *bc = BUS_GET_CLASS(bus);
578 if (bc->print_dev) {
579 bc->print_dev(mon, dev, indent);
583 static void qdev_print(Monitor *mon, DeviceState *dev, int indent)
585 ObjectClass *class;
586 BusState *child;
587 qdev_printf("dev: %s, id \"%s\"\n", object_get_typename(OBJECT(dev)),
588 dev->id ? dev->id : "");
589 indent += 2;
590 if (dev->num_gpio_in) {
591 qdev_printf("gpio-in %d\n", dev->num_gpio_in);
593 if (dev->num_gpio_out) {
594 qdev_printf("gpio-out %d\n", dev->num_gpio_out);
596 class = object_get_class(OBJECT(dev));
597 do {
598 qdev_print_props(mon, dev, DEVICE_CLASS(class)->props, indent);
599 class = object_class_get_parent(class);
600 } while (class != object_class_by_name(TYPE_DEVICE));
601 bus_print_dev(dev->parent_bus, mon, dev, indent);
602 QLIST_FOREACH(child, &dev->child_bus, sibling) {
603 qbus_print(mon, child, indent);
607 static void qbus_print(Monitor *mon, BusState *bus, int indent)
609 BusChild *kid;
611 qdev_printf("bus: %s\n", bus->name);
612 indent += 2;
613 qdev_printf("type %s\n", object_get_typename(OBJECT(bus)));
614 QTAILQ_FOREACH(kid, &bus->children, sibling) {
615 DeviceState *dev = kid->child;
616 qdev_print(mon, dev, indent);
619 #undef qdev_printf
621 void do_info_qtree(Monitor *mon, const QDict *qdict)
623 if (sysbus_get_default())
624 qbus_print(mon, sysbus_get_default(), 0);
627 void do_info_qdm(Monitor *mon, const QDict *qdict)
629 qdev_print_devinfos(true);
632 int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
634 Error *local_err = NULL;
635 QemuOpts *opts;
636 DeviceState *dev;
638 opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict, &local_err);
639 if (error_is_set(&local_err)) {
640 qerror_report_err(local_err);
641 error_free(local_err);
642 return -1;
644 if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
645 qemu_opts_del(opts);
646 return 0;
648 dev = qdev_device_add(opts);
649 if (!dev) {
650 qemu_opts_del(opts);
651 return -1;
653 object_unref(OBJECT(dev));
654 return 0;
657 void qmp_device_del(const char *id, Error **errp)
659 DeviceState *dev;
661 dev = qdev_find_recursive(sysbus_get_default(), id);
662 if (NULL == dev) {
663 error_set(errp, QERR_DEVICE_NOT_FOUND, id);
664 return;
667 qdev_unplug(dev, errp);
670 void qdev_machine_init(void)
672 qdev_get_peripheral_anon();
673 qdev_get_peripheral();
676 QemuOptsList qemu_device_opts = {
677 .name = "device",
678 .implied_opt_name = "driver",
679 .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),
680 .desc = {
682 * no elements => accept any
683 * sanity checking will happen later
684 * when setting device properties
686 { /* end of list */ }
690 QemuOptsList qemu_global_opts = {
691 .name = "global",
692 .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head),
693 .desc = {
695 .name = "driver",
696 .type = QEMU_OPT_STRING,
698 .name = "property",
699 .type = QEMU_OPT_STRING,
701 .name = "value",
702 .type = QEMU_OPT_STRING,
704 { /* end of list */ }
708 int qemu_global_option(const char *str)
710 char driver[64], property[64];
711 QemuOpts *opts;
712 int rc, offset;
714 rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
715 if (rc < 2 || str[offset] != '=') {
716 error_report("can't parse: \"%s\"", str);
717 return -1;
720 opts = qemu_opts_create_nofail(&qemu_global_opts);
721 qemu_opt_set(opts, "driver", driver);
722 qemu_opt_set(opts, "property", property);
723 qemu_opt_set(opts, "value", str+offset+1);
724 return 0;