root / hw / qdev.c @ 7e0a9247
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1 | aae9460e | Paul Brook | /*
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2 | aae9460e | Paul Brook | * Dynamic device configuration and creation.
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3 | aae9460e | Paul Brook | *
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4 | aae9460e | Paul Brook | * Copyright (c) 2009 CodeSourcery
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5 | aae9460e | Paul Brook | *
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6 | aae9460e | Paul Brook | * This library is free software; you can redistribute it and/or
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7 | aae9460e | Paul Brook | * modify it under the terms of the GNU Lesser General Public
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8 | aae9460e | Paul Brook | * License as published by the Free Software Foundation; either
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9 | aae9460e | Paul Brook | * version 2 of the License, or (at your option) any later version.
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10 | aae9460e | Paul Brook | *
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11 | aae9460e | Paul Brook | * This library is distributed in the hope that it will be useful,
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12 | aae9460e | Paul Brook | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | aae9460e | Paul Brook | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | aae9460e | Paul Brook | * Lesser General Public License for more details.
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15 | aae9460e | Paul Brook | *
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16 | aae9460e | Paul Brook | * You should have received a copy of the GNU Lesser General Public
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17 | 8167ee88 | Blue Swirl | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | aae9460e | Paul Brook | */
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19 | aae9460e | Paul Brook | |
20 | aae9460e | Paul Brook | /* The theory here is that it should be possible to create a machine without
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21 | aae9460e | Paul Brook | knowledge of specific devices. Historically board init routines have
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22 | aae9460e | Paul Brook | passed a bunch of arguments to each device, requiring the board know
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23 | aae9460e | Paul Brook | exactly which device it is dealing with. This file provides an abstract
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24 | aae9460e | Paul Brook | API for device configuration and initialization. Devices will generally
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25 | aae9460e | Paul Brook | inherit from a particular bus (e.g. PCI or I2C) rather than
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26 | aae9460e | Paul Brook | this API directly. */
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27 | aae9460e | Paul Brook | |
28 | aae9460e | Paul Brook | #include "qdev.h" |
29 | aae9460e | Paul Brook | #include "sysemu.h" |
30 | 56f9107e | Luiz Capitulino | #include "error.h" |
31 | 074a86fc | Anthony Liguori | #include "qapi/qapi-visit-core.h" |
32 | aae9460e | Paul Brook | |
33 | ee46d8a5 | Anthony Liguori | int qdev_hotplug = 0; |
34 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_added = false; |
35 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_removed = false; |
36 | 3418bd25 | Gerd Hoffmann | |
37 | 4be9f0d1 | Anthony Liguori | const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
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38 | 4be9f0d1 | Anthony Liguori | { |
39 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
40 | 6e008585 | Anthony Liguori | return dc->vmsd;
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41 | 4be9f0d1 | Anthony Liguori | } |
42 | 4be9f0d1 | Anthony Liguori | |
43 | 4be9f0d1 | Anthony Liguori | const char *qdev_fw_name(DeviceState *dev) |
44 | 4be9f0d1 | Anthony Liguori | { |
45 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
46 | 4be9f0d1 | Anthony Liguori | |
47 | 6e008585 | Anthony Liguori | if (dc->fw_name) {
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48 | 6e008585 | Anthony Liguori | return dc->fw_name;
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49 | 4be9f0d1 | Anthony Liguori | } |
50 | 4be9f0d1 | Anthony Liguori | |
51 | 4be9f0d1 | Anthony Liguori | return object_get_typename(OBJECT(dev));
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52 | 4be9f0d1 | Anthony Liguori | } |
53 | 4be9f0d1 | Anthony Liguori | |
54 | ca2cc788 | Paolo Bonzini | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
55 | ca2cc788 | Paolo Bonzini | Error **errp); |
56 | ca2cc788 | Paolo Bonzini | |
57 | 0866aca1 | Anthony Liguori | static void bus_remove_child(BusState *bus, DeviceState *child) |
58 | 0c17542d | Markus Armbruster | { |
59 | 0866aca1 | Anthony Liguori | BusChild *kid; |
60 | 0866aca1 | Anthony Liguori | |
61 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
62 | 0866aca1 | Anthony Liguori | if (kid->child == child) {
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63 | 0866aca1 | Anthony Liguori | char name[32]; |
64 | 0866aca1 | Anthony Liguori | |
65 | 0866aca1 | Anthony Liguori | snprintf(name, sizeof(name), "child[%d]", kid->index); |
66 | 0866aca1 | Anthony Liguori | QTAILQ_REMOVE(&bus->children, kid, sibling); |
67 | 0866aca1 | Anthony Liguori | object_property_del(OBJECT(bus), name, NULL);
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68 | 0866aca1 | Anthony Liguori | g_free(kid); |
69 | 0866aca1 | Anthony Liguori | return;
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70 | 0866aca1 | Anthony Liguori | } |
71 | 0866aca1 | Anthony Liguori | } |
72 | 0866aca1 | Anthony Liguori | } |
73 | 0866aca1 | Anthony Liguori | |
74 | 0866aca1 | Anthony Liguori | static void bus_add_child(BusState *bus, DeviceState *child) |
75 | 0866aca1 | Anthony Liguori | { |
76 | 0866aca1 | Anthony Liguori | char name[32]; |
77 | 0866aca1 | Anthony Liguori | BusChild *kid = g_malloc0(sizeof(*kid));
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78 | 0c17542d | Markus Armbruster | |
79 | 0c17542d | Markus Armbruster | if (qdev_hotplug) {
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80 | 0c17542d | Markus Armbruster | assert(bus->allow_hotplug); |
81 | 0c17542d | Markus Armbruster | } |
82 | a5296ca9 | Anthony Liguori | |
83 | 0866aca1 | Anthony Liguori | kid->index = bus->max_index++; |
84 | 0866aca1 | Anthony Liguori | kid->child = child; |
85 | a5296ca9 | Anthony Liguori | |
86 | 0866aca1 | Anthony Liguori | QTAILQ_INSERT_HEAD(&bus->children, kid, sibling); |
87 | 0866aca1 | Anthony Liguori | |
88 | 0866aca1 | Anthony Liguori | snprintf(name, sizeof(name), "child[%d]", kid->index); |
89 | 0866aca1 | Anthony Liguori | object_property_add_link(OBJECT(bus), name, |
90 | 0866aca1 | Anthony Liguori | object_get_typename(OBJECT(child)), |
91 | 0866aca1 | Anthony Liguori | (Object **)&kid->child, |
92 | 0866aca1 | Anthony Liguori | NULL);
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93 | 0866aca1 | Anthony Liguori | } |
94 | 0866aca1 | Anthony Liguori | |
95 | 0866aca1 | Anthony Liguori | void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
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96 | 0866aca1 | Anthony Liguori | { |
97 | 9fbe6127 | Anthony Liguori | dev->parent_bus = bus; |
98 | 0866aca1 | Anthony Liguori | bus_add_child(bus, dev); |
99 | 0c17542d | Markus Armbruster | } |
100 | 0c17542d | Markus Armbruster | |
101 | aae9460e | Paul Brook | /* Create a new device. This only initializes the device state structure
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102 | aae9460e | Paul Brook | and allows properties to be set. qdev_init should be called to
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103 | aae9460e | Paul Brook | initialize the actual device emulation. */
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104 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name) |
105 | aae9460e | Paul Brook | { |
106 | 0bcdeda7 | Blue Swirl | DeviceState *dev; |
107 | 0bcdeda7 | Blue Swirl | |
108 | 0bcdeda7 | Blue Swirl | dev = qdev_try_create(bus, name); |
109 | 0bcdeda7 | Blue Swirl | if (!dev) {
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110 | e92714c7 | Peter Maydell | if (bus) {
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111 | 23e3fbec | Eduardo Habkost | error_report("Unknown device '%s' for bus '%s'\n", name,
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112 | 23e3fbec | Eduardo Habkost | object_get_typename(OBJECT(bus))); |
113 | 23e3fbec | Eduardo Habkost | abort(); |
114 | e92714c7 | Peter Maydell | } else {
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115 | 23e3fbec | Eduardo Habkost | error_report("Unknown device '%s' for default sysbus\n", name);
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116 | 23e3fbec | Eduardo Habkost | abort(); |
117 | e92714c7 | Peter Maydell | } |
118 | 0bcdeda7 | Blue Swirl | } |
119 | 0bcdeda7 | Blue Swirl | |
120 | 0bcdeda7 | Blue Swirl | return dev;
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121 | 0bcdeda7 | Blue Swirl | } |
122 | 0bcdeda7 | Blue Swirl | |
123 | da57febf | Paolo Bonzini | DeviceState *qdev_try_create(BusState *bus, const char *type) |
124 | 0bcdeda7 | Blue Swirl | { |
125 | 9fbe6127 | Anthony Liguori | DeviceState *dev; |
126 | 9fbe6127 | Anthony Liguori | |
127 | da57febf | Paolo Bonzini | if (object_class_by_name(type) == NULL) { |
128 | 4ed658ca | Andreas Färber | return NULL; |
129 | 4ed658ca | Andreas Färber | } |
130 | da57febf | Paolo Bonzini | dev = DEVICE(object_new(type)); |
131 | 9fbe6127 | Anthony Liguori | if (!dev) {
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132 | 9fbe6127 | Anthony Liguori | return NULL; |
133 | 9fbe6127 | Anthony Liguori | } |
134 | 9fbe6127 | Anthony Liguori | |
135 | 10c4c98a | Gerd Hoffmann | if (!bus) {
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136 | 68694897 | Stefan Weil | bus = sysbus_get_default(); |
137 | 10c4c98a | Gerd Hoffmann | } |
138 | 10c4c98a | Gerd Hoffmann | |
139 | 9fbe6127 | Anthony Liguori | qdev_set_parent_bus(dev, bus); |
140 | 9fbe6127 | Anthony Liguori | |
141 | 9fbe6127 | Anthony Liguori | return dev;
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142 | aae9460e | Paul Brook | } |
143 | aae9460e | Paul Brook | |
144 | aae9460e | Paul Brook | /* Initialize a device. Device properties should be set before calling
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145 | aae9460e | Paul Brook | this function. IRQs and MMIO regions should be connected/mapped after
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146 | 18cfeb52 | Markus Armbruster | calling this function.
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147 | 18cfeb52 | Markus Armbruster | On failure, destroy the device and return negative value.
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148 | 18cfeb52 | Markus Armbruster | Return 0 on success. */
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149 | 81a322d4 | Gerd Hoffmann | int qdev_init(DeviceState *dev)
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150 | aae9460e | Paul Brook | { |
151 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
152 | 959f733a | Gerd Hoffmann | int rc;
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153 | 959f733a | Gerd Hoffmann | |
154 | 131ec1bd | Gerd Hoffmann | assert(dev->state == DEV_STATE_CREATED); |
155 | 6e008585 | Anthony Liguori | |
156 | d307af79 | Anthony Liguori | rc = dc->init(dev); |
157 | 18cfeb52 | Markus Armbruster | if (rc < 0) { |
158 | 18cfeb52 | Markus Armbruster | qdev_free(dev); |
159 | 959f733a | Gerd Hoffmann | return rc;
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160 | 18cfeb52 | Markus Armbruster | } |
161 | da57febf | Paolo Bonzini | |
162 | da57febf | Paolo Bonzini | if (!OBJECT(dev)->parent) {
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163 | da57febf | Paolo Bonzini | static int unattached_count = 0; |
164 | da57febf | Paolo Bonzini | gchar *name = g_strdup_printf("device[%d]", unattached_count++);
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165 | da57febf | Paolo Bonzini | |
166 | dfe47e70 | Andreas Färber | object_property_add_child(container_get(qdev_get_machine(), |
167 | dfe47e70 | Andreas Färber | "/unattached"),
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168 | dfe47e70 | Andreas Färber | name, OBJECT(dev), NULL);
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169 | da57febf | Paolo Bonzini | g_free(name); |
170 | da57febf | Paolo Bonzini | } |
171 | da57febf | Paolo Bonzini | |
172 | 6e008585 | Anthony Liguori | if (qdev_get_vmsd(dev)) {
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173 | 6e008585 | Anthony Liguori | vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
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174 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias, |
175 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version); |
176 | 4d2ffa08 | Jan Kiszka | } |
177 | 131ec1bd | Gerd Hoffmann | dev->state = DEV_STATE_INITIALIZED; |
178 | 94afdadc | Anthony Liguori | if (dev->hotplugged) {
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179 | 94afdadc | Anthony Liguori | device_reset(dev); |
180 | 5ab28c83 | Jan Kiszka | } |
181 | 959f733a | Gerd Hoffmann | return 0; |
182 | 02e2da45 | Paul Brook | } |
183 | 02e2da45 | Paul Brook | |
184 | 4d2ffa08 | Jan Kiszka | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
185 | 4d2ffa08 | Jan Kiszka | int required_for_version)
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186 | 4d2ffa08 | Jan Kiszka | { |
187 | 4d2ffa08 | Jan Kiszka | assert(dev->state == DEV_STATE_CREATED); |
188 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = alias_id; |
189 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version = required_for_version; |
190 | 4d2ffa08 | Jan Kiszka | } |
191 | 4d2ffa08 | Jan Kiszka | |
192 | 56f9107e | Luiz Capitulino | void qdev_unplug(DeviceState *dev, Error **errp)
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193 | 3418bd25 | Gerd Hoffmann | { |
194 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
195 | 6e008585 | Anthony Liguori | |
196 | 3418bd25 | Gerd Hoffmann | if (!dev->parent_bus->allow_hotplug) {
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197 | 56f9107e | Luiz Capitulino | error_set(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
198 | 56f9107e | Luiz Capitulino | return;
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199 | 3418bd25 | Gerd Hoffmann | } |
200 | 6e008585 | Anthony Liguori | assert(dc->unplug != NULL);
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201 | 593831de | Amit Shah | |
202 | 0ac8ef71 | Alex Williamson | qdev_hot_removed = true;
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203 | 0ac8ef71 | Alex Williamson | |
204 | 56f9107e | Luiz Capitulino | if (dc->unplug(dev) < 0) { |
205 | 56f9107e | Luiz Capitulino | error_set(errp, QERR_UNDEFINED_ERROR); |
206 | 56f9107e | Luiz Capitulino | return;
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207 | 56f9107e | Luiz Capitulino | } |
208 | 3418bd25 | Gerd Hoffmann | } |
209 | 3418bd25 | Gerd Hoffmann | |
210 | ec990eb6 | Anthony Liguori | static int qdev_reset_one(DeviceState *dev, void *opaque) |
211 | ec990eb6 | Anthony Liguori | { |
212 | 94afdadc | Anthony Liguori | device_reset(dev); |
213 | ec990eb6 | Anthony Liguori | |
214 | ec990eb6 | Anthony Liguori | return 0; |
215 | ec990eb6 | Anthony Liguori | } |
216 | ec990eb6 | Anthony Liguori | |
217 | b4694b7c | Isaku Yamahata | static int qbus_reset_one(BusState *bus, void *opaque) |
218 | b4694b7c | Isaku Yamahata | { |
219 | 0d936928 | Anthony Liguori | BusClass *bc = BUS_GET_CLASS(bus); |
220 | 0d936928 | Anthony Liguori | if (bc->reset) {
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221 | 0d936928 | Anthony Liguori | return bc->reset(bus);
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222 | b4694b7c | Isaku Yamahata | } |
223 | b4694b7c | Isaku Yamahata | return 0; |
224 | b4694b7c | Isaku Yamahata | } |
225 | b4694b7c | Isaku Yamahata | |
226 | 5af0a04b | Isaku Yamahata | void qdev_reset_all(DeviceState *dev)
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227 | 5af0a04b | Isaku Yamahata | { |
228 | 5af0a04b | Isaku Yamahata | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL);
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229 | 5af0a04b | Isaku Yamahata | } |
230 | 5af0a04b | Isaku Yamahata | |
231 | 80376c3f | Isaku Yamahata | void qbus_reset_all_fn(void *opaque) |
232 | 80376c3f | Isaku Yamahata | { |
233 | 80376c3f | Isaku Yamahata | BusState *bus = opaque; |
234 | f530cce3 | Michael S. Tsirkin | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
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235 | 80376c3f | Isaku Yamahata | } |
236 | 80376c3f | Isaku Yamahata | |
237 | 3418bd25 | Gerd Hoffmann | /* can be used as ->unplug() callback for the simple cases */
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238 | 3418bd25 | Gerd Hoffmann | int qdev_simple_unplug_cb(DeviceState *dev)
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239 | 3418bd25 | Gerd Hoffmann | { |
240 | 3418bd25 | Gerd Hoffmann | /* just zap it */
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241 | 3418bd25 | Gerd Hoffmann | qdev_free(dev); |
242 | 3418bd25 | Gerd Hoffmann | return 0; |
243 | 3418bd25 | Gerd Hoffmann | } |
244 | 3418bd25 | Gerd Hoffmann | |
245 | 3b29a101 | Michael Tokarev | |
246 | 3b29a101 | Michael Tokarev | /* Like qdev_init(), but terminate program via error_report() instead of
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247 | e23a1b33 | Markus Armbruster | returning an error value. This is okay during machine creation.
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248 | e23a1b33 | Markus Armbruster | Don't use for hotplug, because there callers need to recover from
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249 | e23a1b33 | Markus Armbruster | failure. Exception: if you know the device's init() callback can't
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250 | e23a1b33 | Markus Armbruster | fail, then qdev_init_nofail() can't fail either, and is therefore
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251 | e23a1b33 | Markus Armbruster | usable even then. But relying on the device implementation that
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252 | e23a1b33 | Markus Armbruster | way is somewhat unclean, and best avoided. */
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253 | e23a1b33 | Markus Armbruster | void qdev_init_nofail(DeviceState *dev)
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254 | e23a1b33 | Markus Armbruster | { |
255 | 7de3abe5 | Anthony Liguori | const char *typename = object_get_typename(OBJECT(dev)); |
256 | 7de3abe5 | Anthony Liguori | |
257 | bd6c9a61 | Markus Armbruster | if (qdev_init(dev) < 0) { |
258 | 7de3abe5 | Anthony Liguori | error_report("Initialization of device %s failed", typename);
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259 | bd6c9a61 | Markus Armbruster | exit(1);
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260 | bd6c9a61 | Markus Armbruster | } |
261 | e23a1b33 | Markus Armbruster | } |
262 | e23a1b33 | Markus Armbruster | |
263 | 02e2da45 | Paul Brook | /* Unlink device from bus and free the structure. */
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264 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev)
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265 | 02e2da45 | Paul Brook | { |
266 | 32fea402 | Anthony Liguori | object_delete(OBJECT(dev)); |
267 | aae9460e | Paul Brook | } |
268 | aae9460e | Paul Brook | |
269 | 3418bd25 | Gerd Hoffmann | void qdev_machine_creation_done(void) |
270 | 3418bd25 | Gerd Hoffmann | { |
271 | 3418bd25 | Gerd Hoffmann | /*
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272 | 3418bd25 | Gerd Hoffmann | * ok, initial machine setup is done, starting from now we can
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273 | 3418bd25 | Gerd Hoffmann | * only create hotpluggable devices
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274 | 3418bd25 | Gerd Hoffmann | */
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275 | 3418bd25 | Gerd Hoffmann | qdev_hotplug = 1;
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276 | 3418bd25 | Gerd Hoffmann | } |
277 | 3418bd25 | Gerd Hoffmann | |
278 | 0ac8ef71 | Alex Williamson | bool qdev_machine_modified(void) |
279 | 0ac8ef71 | Alex Williamson | { |
280 | 0ac8ef71 | Alex Williamson | return qdev_hot_added || qdev_hot_removed;
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281 | 0ac8ef71 | Alex Williamson | } |
282 | 0ac8ef71 | Alex Williamson | |
283 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev) |
284 | aae9460e | Paul Brook | { |
285 | 02e2da45 | Paul Brook | return dev->parent_bus;
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286 | aae9460e | Paul Brook | } |
287 | aae9460e | Paul Brook | |
288 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
289 | aae9460e | Paul Brook | { |
290 | 1e5b31e6 | Peter A. G. Crosthwaite | dev->gpio_in = qemu_extend_irqs(dev->gpio_in, dev->num_gpio_in, handler, |
291 | 1e5b31e6 | Peter A. G. Crosthwaite | dev, n); |
292 | 1e5b31e6 | Peter A. G. Crosthwaite | dev->num_gpio_in += n; |
293 | aae9460e | Paul Brook | } |
294 | aae9460e | Paul Brook | |
295 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
296 | aae9460e | Paul Brook | { |
297 | aae9460e | Paul Brook | assert(dev->num_gpio_out == 0);
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298 | aae9460e | Paul Brook | dev->num_gpio_out = n; |
299 | aae9460e | Paul Brook | dev->gpio_out = pins; |
300 | aae9460e | Paul Brook | } |
301 | aae9460e | Paul Brook | |
302 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
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303 | aae9460e | Paul Brook | { |
304 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_in);
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305 | aae9460e | Paul Brook | return dev->gpio_in[n];
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306 | aae9460e | Paul Brook | } |
307 | aae9460e | Paul Brook | |
308 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
309 | aae9460e | Paul Brook | { |
310 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_out);
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311 | aae9460e | Paul Brook | dev->gpio_out[n] = pin; |
312 | aae9460e | Paul Brook | } |
313 | aae9460e | Paul Brook | |
314 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
315 | 4d6ae674 | Paul Brook | { |
316 | 02e2da45 | Paul Brook | BusState *bus; |
317 | 4d6ae674 | Paul Brook | |
318 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
319 | 4d6ae674 | Paul Brook | if (strcmp(name, bus->name) == 0) { |
320 | 02e2da45 | Paul Brook | return bus;
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321 | 4d6ae674 | Paul Brook | } |
322 | 4d6ae674 | Paul Brook | } |
323 | 4d6ae674 | Paul Brook | return NULL; |
324 | 4d6ae674 | Paul Brook | } |
325 | 4d6ae674 | Paul Brook | |
326 | 81699d8a | Anthony Liguori | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
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327 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
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328 | 81699d8a | Anthony Liguori | { |
329 | 0866aca1 | Anthony Liguori | BusChild *kid; |
330 | 81699d8a | Anthony Liguori | int err;
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331 | 81699d8a | Anthony Liguori | |
332 | 81699d8a | Anthony Liguori | if (busfn) {
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333 | 81699d8a | Anthony Liguori | err = busfn(bus, opaque); |
334 | 81699d8a | Anthony Liguori | if (err) {
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335 | 81699d8a | Anthony Liguori | return err;
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336 | 81699d8a | Anthony Liguori | } |
337 | 81699d8a | Anthony Liguori | } |
338 | 81699d8a | Anthony Liguori | |
339 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
340 | 0866aca1 | Anthony Liguori | err = qdev_walk_children(kid->child, devfn, busfn, opaque); |
341 | 81699d8a | Anthony Liguori | if (err < 0) { |
342 | 81699d8a | Anthony Liguori | return err;
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343 | 81699d8a | Anthony Liguori | } |
344 | 81699d8a | Anthony Liguori | } |
345 | 81699d8a | Anthony Liguori | |
346 | 81699d8a | Anthony Liguori | return 0; |
347 | 81699d8a | Anthony Liguori | } |
348 | 81699d8a | Anthony Liguori | |
349 | 81699d8a | Anthony Liguori | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
|
350 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
351 | 81699d8a | Anthony Liguori | { |
352 | 81699d8a | Anthony Liguori | BusState *bus; |
353 | 81699d8a | Anthony Liguori | int err;
|
354 | 81699d8a | Anthony Liguori | |
355 | 81699d8a | Anthony Liguori | if (devfn) {
|
356 | 81699d8a | Anthony Liguori | err = devfn(dev, opaque); |
357 | 81699d8a | Anthony Liguori | if (err) {
|
358 | 81699d8a | Anthony Liguori | return err;
|
359 | 81699d8a | Anthony Liguori | } |
360 | 81699d8a | Anthony Liguori | } |
361 | 81699d8a | Anthony Liguori | |
362 | 81699d8a | Anthony Liguori | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
363 | 81699d8a | Anthony Liguori | err = qbus_walk_children(bus, devfn, busfn, opaque); |
364 | 81699d8a | Anthony Liguori | if (err < 0) { |
365 | 81699d8a | Anthony Liguori | return err;
|
366 | 81699d8a | Anthony Liguori | } |
367 | 81699d8a | Anthony Liguori | } |
368 | 81699d8a | Anthony Liguori | |
369 | 81699d8a | Anthony Liguori | return 0; |
370 | 81699d8a | Anthony Liguori | } |
371 | 81699d8a | Anthony Liguori | |
372 | a2ee6b4f | Isaku Yamahata | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
373 | 3418bd25 | Gerd Hoffmann | { |
374 | 0866aca1 | Anthony Liguori | BusChild *kid; |
375 | 0866aca1 | Anthony Liguori | DeviceState *ret; |
376 | 3418bd25 | Gerd Hoffmann | BusState *child; |
377 | 3418bd25 | Gerd Hoffmann | |
378 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
379 | 0866aca1 | Anthony Liguori | DeviceState *dev = kid->child; |
380 | 0866aca1 | Anthony Liguori | |
381 | 0866aca1 | Anthony Liguori | if (dev->id && strcmp(dev->id, id) == 0) { |
382 | 3418bd25 | Gerd Hoffmann | return dev;
|
383 | 0866aca1 | Anthony Liguori | } |
384 | 0866aca1 | Anthony Liguori | |
385 | 3418bd25 | Gerd Hoffmann | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
386 | 3418bd25 | Gerd Hoffmann | ret = qdev_find_recursive(child, id); |
387 | 3418bd25 | Gerd Hoffmann | if (ret) {
|
388 | 3418bd25 | Gerd Hoffmann | return ret;
|
389 | 3418bd25 | Gerd Hoffmann | } |
390 | 3418bd25 | Gerd Hoffmann | } |
391 | 3418bd25 | Gerd Hoffmann | } |
392 | 3418bd25 | Gerd Hoffmann | return NULL; |
393 | 3418bd25 | Gerd Hoffmann | } |
394 | 3418bd25 | Gerd Hoffmann | |
395 | ac7d1ba6 | Anthony Liguori | static void qbus_realize(BusState *bus) |
396 | 02e2da45 | Paul Brook | { |
397 | ac7d1ba6 | Anthony Liguori | const char *typename = object_get_typename(OBJECT(bus)); |
398 | d271de9f | Gerd Hoffmann | char *buf;
|
399 | d271de9f | Gerd Hoffmann | int i,len;
|
400 | 02e2da45 | Paul Brook | |
401 | ac7d1ba6 | Anthony Liguori | if (bus->name) {
|
402 | d271de9f | Gerd Hoffmann | /* use supplied name */
|
403 | ac7d1ba6 | Anthony Liguori | } else if (bus->parent && bus->parent->id) { |
404 | d271de9f | Gerd Hoffmann | /* parent device has id -> use it for bus name */
|
405 | ac7d1ba6 | Anthony Liguori | len = strlen(bus->parent->id) + 16;
|
406 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
407 | ac7d1ba6 | Anthony Liguori | snprintf(buf, len, "%s.%d", bus->parent->id, bus->parent->num_child_bus);
|
408 | d271de9f | Gerd Hoffmann | bus->name = buf; |
409 | d271de9f | Gerd Hoffmann | } else {
|
410 | d271de9f | Gerd Hoffmann | /* no id -> use lowercase bus type for bus name */
|
411 | 0d936928 | Anthony Liguori | len = strlen(typename) + 16;
|
412 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
413 | 0d936928 | Anthony Liguori | len = snprintf(buf, len, "%s.%d", typename,
|
414 | ac7d1ba6 | Anthony Liguori | bus->parent ? bus->parent->num_child_bus : 0);
|
415 | d271de9f | Gerd Hoffmann | for (i = 0; i < len; i++) |
416 | bb87ece5 | Christoph Egger | buf[i] = qemu_tolower(buf[i]); |
417 | d271de9f | Gerd Hoffmann | bus->name = buf; |
418 | d271de9f | Gerd Hoffmann | } |
419 | d271de9f | Gerd Hoffmann | |
420 | ac7d1ba6 | Anthony Liguori | if (bus->parent) {
|
421 | ac7d1ba6 | Anthony Liguori | QLIST_INSERT_HEAD(&bus->parent->child_bus, bus, sibling); |
422 | ac7d1ba6 | Anthony Liguori | bus->parent->num_child_bus++; |
423 | ac7d1ba6 | Anthony Liguori | object_property_add_child(OBJECT(bus->parent), bus->name, OBJECT(bus), NULL);
|
424 | 8185d216 | Paolo Bonzini | } else if (bus != sysbus_get_default()) { |
425 | 80376c3f | Isaku Yamahata | /* TODO: once all bus devices are qdevified,
|
426 | 80376c3f | Isaku Yamahata | only reset handler for main_system_bus should be registered here. */
|
427 | 80376c3f | Isaku Yamahata | qemu_register_reset(qbus_reset_all_fn, bus); |
428 | 02e2da45 | Paul Brook | } |
429 | cd739fb6 | Gerd Hoffmann | } |
430 | cd739fb6 | Gerd Hoffmann | |
431 | 0d936928 | Anthony Liguori | void qbus_create_inplace(BusState *bus, const char *typename, |
432 | 0d936928 | Anthony Liguori | DeviceState *parent, const char *name) |
433 | cd739fb6 | Gerd Hoffmann | { |
434 | 0d936928 | Anthony Liguori | object_initialize(bus, typename); |
435 | cd739fb6 | Gerd Hoffmann | |
436 | ac7d1ba6 | Anthony Liguori | bus->parent = parent; |
437 | ac7d1ba6 | Anthony Liguori | bus->name = name ? g_strdup(name) : NULL;
|
438 | ac7d1ba6 | Anthony Liguori | qbus_realize(bus); |
439 | 02e2da45 | Paul Brook | } |
440 | cae4956e | Gerd Hoffmann | |
441 | 0d936928 | Anthony Liguori | BusState *qbus_create(const char *typename, DeviceState *parent, const char *name) |
442 | 2da8bb92 | Isaku Yamahata | { |
443 | cd739fb6 | Gerd Hoffmann | BusState *bus; |
444 | cd739fb6 | Gerd Hoffmann | |
445 | 0d936928 | Anthony Liguori | bus = BUS(object_new(typename)); |
446 | ac7d1ba6 | Anthony Liguori | |
447 | ac7d1ba6 | Anthony Liguori | bus->parent = parent; |
448 | ac7d1ba6 | Anthony Liguori | bus->name = name ? g_strdup(name) : NULL;
|
449 | ac7d1ba6 | Anthony Liguori | qbus_realize(bus); |
450 | ac7d1ba6 | Anthony Liguori | |
451 | 02e2da45 | Paul Brook | return bus;
|
452 | 2da8bb92 | Isaku Yamahata | } |
453 | 2da8bb92 | Isaku Yamahata | |
454 | 131ec1bd | Gerd Hoffmann | void qbus_free(BusState *bus)
|
455 | 131ec1bd | Gerd Hoffmann | { |
456 | 64b625f4 | Paolo Bonzini | object_delete(OBJECT(bus)); |
457 | 0d936928 | Anthony Liguori | } |
458 | 0d936928 | Anthony Liguori | |
459 | 0d936928 | Anthony Liguori | static char *bus_get_fw_dev_path(BusState *bus, DeviceState *dev) |
460 | 0d936928 | Anthony Liguori | { |
461 | 0d936928 | Anthony Liguori | BusClass *bc = BUS_GET_CLASS(bus); |
462 | 0d936928 | Anthony Liguori | |
463 | 0d936928 | Anthony Liguori | if (bc->get_fw_dev_path) {
|
464 | 0d936928 | Anthony Liguori | return bc->get_fw_dev_path(dev);
|
465 | 131ec1bd | Gerd Hoffmann | } |
466 | 0d936928 | Anthony Liguori | |
467 | 0d936928 | Anthony Liguori | return NULL; |
468 | 131ec1bd | Gerd Hoffmann | } |
469 | 131ec1bd | Gerd Hoffmann | |
470 | 1ca4d09a | Gleb Natapov | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
471 | 1ca4d09a | Gleb Natapov | { |
472 | 1ca4d09a | Gleb Natapov | int l = 0; |
473 | 1ca4d09a | Gleb Natapov | |
474 | 1ca4d09a | Gleb Natapov | if (dev && dev->parent_bus) {
|
475 | 1ca4d09a | Gleb Natapov | char *d;
|
476 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); |
477 | 0d936928 | Anthony Liguori | d = bus_get_fw_dev_path(dev->parent_bus, dev); |
478 | 0d936928 | Anthony Liguori | if (d) {
|
479 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l, size - l, "%s", d);
|
480 | 7267c094 | Anthony Liguori | g_free(d); |
481 | 1ca4d09a | Gleb Natapov | } else {
|
482 | f79f2bfc | Anthony Liguori | l += snprintf(p + l, size - l, "%s", object_get_typename(OBJECT(dev)));
|
483 | 1ca4d09a | Gleb Natapov | } |
484 | 1ca4d09a | Gleb Natapov | } |
485 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l , size - l, "/");
|
486 | 1ca4d09a | Gleb Natapov | |
487 | 1ca4d09a | Gleb Natapov | return l;
|
488 | 1ca4d09a | Gleb Natapov | } |
489 | 1ca4d09a | Gleb Natapov | |
490 | 1ca4d09a | Gleb Natapov | char* qdev_get_fw_dev_path(DeviceState *dev)
|
491 | 1ca4d09a | Gleb Natapov | { |
492 | 1ca4d09a | Gleb Natapov | char path[128]; |
493 | 1ca4d09a | Gleb Natapov | int l;
|
494 | 1ca4d09a | Gleb Natapov | |
495 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev, path, 128);
|
496 | 1ca4d09a | Gleb Natapov | |
497 | 1ca4d09a | Gleb Natapov | path[l-1] = '\0'; |
498 | 1ca4d09a | Gleb Natapov | |
499 | a5cf8262 | Jim Meyering | return g_strdup(path);
|
500 | 1ca4d09a | Gleb Natapov | } |
501 | 85ed303b | Anthony Liguori | |
502 | 09e5ab63 | Anthony Liguori | char *qdev_get_dev_path(DeviceState *dev)
|
503 | 85ed303b | Anthony Liguori | { |
504 | 0d936928 | Anthony Liguori | BusClass *bc; |
505 | 09e5ab63 | Anthony Liguori | |
506 | 09e5ab63 | Anthony Liguori | if (!dev || !dev->parent_bus) {
|
507 | 09e5ab63 | Anthony Liguori | return NULL; |
508 | 09e5ab63 | Anthony Liguori | } |
509 | 09e5ab63 | Anthony Liguori | |
510 | 0d936928 | Anthony Liguori | bc = BUS_GET_CLASS(dev->parent_bus); |
511 | 0d936928 | Anthony Liguori | if (bc->get_dev_path) {
|
512 | 0d936928 | Anthony Liguori | return bc->get_dev_path(dev);
|
513 | 09e5ab63 | Anthony Liguori | } |
514 | 09e5ab63 | Anthony Liguori | |
515 | 09e5ab63 | Anthony Liguori | return NULL; |
516 | 44677ded | Anthony Liguori | } |
517 | a5296ca9 | Anthony Liguori | |
518 | a5296ca9 | Anthony Liguori | /**
|
519 | a5296ca9 | Anthony Liguori | * Legacy property handling
|
520 | a5296ca9 | Anthony Liguori | */
|
521 | a5296ca9 | Anthony Liguori | |
522 | 57c9fafe | Anthony Liguori | static void qdev_get_legacy_property(Object *obj, Visitor *v, void *opaque, |
523 | a5296ca9 | Anthony Liguori | const char *name, Error **errp) |
524 | a5296ca9 | Anthony Liguori | { |
525 | 57c9fafe | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
526 | a5296ca9 | Anthony Liguori | Property *prop = opaque; |
527 | a5296ca9 | Anthony Liguori | |
528 | e3cb6ba6 | Paolo Bonzini | char buffer[1024]; |
529 | e3cb6ba6 | Paolo Bonzini | char *ptr = buffer;
|
530 | a5296ca9 | Anthony Liguori | |
531 | e3cb6ba6 | Paolo Bonzini | prop->info->print(dev, prop, buffer, sizeof(buffer));
|
532 | e3cb6ba6 | Paolo Bonzini | visit_type_str(v, &ptr, name, errp); |
533 | a5296ca9 | Anthony Liguori | } |
534 | a5296ca9 | Anthony Liguori | |
535 | 57c9fafe | Anthony Liguori | static void qdev_set_legacy_property(Object *obj, Visitor *v, void *opaque, |
536 | a5296ca9 | Anthony Liguori | const char *name, Error **errp) |
537 | a5296ca9 | Anthony Liguori | { |
538 | 57c9fafe | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
539 | a5296ca9 | Anthony Liguori | Property *prop = opaque; |
540 | e3cb6ba6 | Paolo Bonzini | Error *local_err = NULL;
|
541 | e3cb6ba6 | Paolo Bonzini | char *ptr = NULL; |
542 | e3cb6ba6 | Paolo Bonzini | int ret;
|
543 | a5296ca9 | Anthony Liguori | |
544 | a5296ca9 | Anthony Liguori | if (dev->state != DEV_STATE_CREATED) {
|
545 | a5296ca9 | Anthony Liguori | error_set(errp, QERR_PERMISSION_DENIED); |
546 | a5296ca9 | Anthony Liguori | return;
|
547 | a5296ca9 | Anthony Liguori | } |
548 | a5296ca9 | Anthony Liguori | |
549 | e3cb6ba6 | Paolo Bonzini | visit_type_str(v, &ptr, name, &local_err); |
550 | e3cb6ba6 | Paolo Bonzini | if (local_err) {
|
551 | e3cb6ba6 | Paolo Bonzini | error_propagate(errp, local_err); |
552 | e3cb6ba6 | Paolo Bonzini | return;
|
553 | e3cb6ba6 | Paolo Bonzini | } |
554 | a5296ca9 | Anthony Liguori | |
555 | e3cb6ba6 | Paolo Bonzini | ret = prop->info->parse(dev, prop, ptr); |
556 | 7db4c4e8 | Paolo Bonzini | error_set_from_qdev_prop_error(errp, ret, dev, prop, ptr); |
557 | e3cb6ba6 | Paolo Bonzini | g_free(ptr); |
558 | a5296ca9 | Anthony Liguori | } |
559 | a5296ca9 | Anthony Liguori | |
560 | a5296ca9 | Anthony Liguori | /**
|
561 | a5296ca9 | Anthony Liguori | * @qdev_add_legacy_property - adds a legacy property
|
562 | a5296ca9 | Anthony Liguori | *
|
563 | a5296ca9 | Anthony Liguori | * Do not use this is new code! Properties added through this interface will
|
564 | ca2cc788 | Paolo Bonzini | * be given names and types in the "legacy" namespace.
|
565 | a5296ca9 | Anthony Liguori | *
|
566 | 68ee3569 | Paolo Bonzini | * Legacy properties are string versions of other OOM properties. The format
|
567 | 68ee3569 | Paolo Bonzini | * of the string depends on the property type.
|
568 | a5296ca9 | Anthony Liguori | */
|
569 | a5296ca9 | Anthony Liguori | void qdev_property_add_legacy(DeviceState *dev, Property *prop,
|
570 | a5296ca9 | Anthony Liguori | Error **errp) |
571 | a5296ca9 | Anthony Liguori | { |
572 | ca2cc788 | Paolo Bonzini | gchar *name, *type; |
573 | a5296ca9 | Anthony Liguori | |
574 | f3be016d | Anthony Liguori | /* Register pointer properties as legacy properties */
|
575 | f3be016d | Anthony Liguori | if (!prop->info->print && !prop->info->parse &&
|
576 | f3be016d | Anthony Liguori | (prop->info->set || prop->info->get)) { |
577 | 68ee3569 | Paolo Bonzini | return;
|
578 | 68ee3569 | Paolo Bonzini | } |
579 | f3be016d | Anthony Liguori | |
580 | ca2cc788 | Paolo Bonzini | name = g_strdup_printf("legacy-%s", prop->name);
|
581 | cafe5bdb | Paolo Bonzini | type = g_strdup_printf("legacy<%s>",
|
582 | cafe5bdb | Paolo Bonzini | prop->info->legacy_name ?: prop->info->name); |
583 | a5296ca9 | Anthony Liguori | |
584 | 57c9fafe | Anthony Liguori | object_property_add(OBJECT(dev), name, type, |
585 | 68ee3569 | Paolo Bonzini | prop->info->print ? qdev_get_legacy_property : prop->info->get, |
586 | 68ee3569 | Paolo Bonzini | prop->info->parse ? qdev_set_legacy_property : prop->info->set, |
587 | 57c9fafe | Anthony Liguori | NULL,
|
588 | 57c9fafe | Anthony Liguori | prop, errp); |
589 | a5296ca9 | Anthony Liguori | |
590 | a5296ca9 | Anthony Liguori | g_free(type); |
591 | ca2cc788 | Paolo Bonzini | g_free(name); |
592 | ca2cc788 | Paolo Bonzini | } |
593 | ca2cc788 | Paolo Bonzini | |
594 | ca2cc788 | Paolo Bonzini | /**
|
595 | ca2cc788 | Paolo Bonzini | * @qdev_property_add_static - add a @Property to a device.
|
596 | ca2cc788 | Paolo Bonzini | *
|
597 | ca2cc788 | Paolo Bonzini | * Static properties access data in a struct. The actual type of the
|
598 | ca2cc788 | Paolo Bonzini | * property and the field depends on the property type.
|
599 | ca2cc788 | Paolo Bonzini | */
|
600 | ca2cc788 | Paolo Bonzini | void qdev_property_add_static(DeviceState *dev, Property *prop,
|
601 | ca2cc788 | Paolo Bonzini | Error **errp) |
602 | ca2cc788 | Paolo Bonzini | { |
603 | fdae245f | Paolo Bonzini | Error *local_err = NULL;
|
604 | fdae245f | Paolo Bonzini | Object *obj = OBJECT(dev); |
605 | fdae245f | Paolo Bonzini | |
606 | d822979b | Paolo Bonzini | /*
|
607 | d822979b | Paolo Bonzini | * TODO qdev_prop_ptr does not have getters or setters. It must
|
608 | d822979b | Paolo Bonzini | * go now that it can be replaced with links. The test should be
|
609 | d822979b | Paolo Bonzini | * removed along with it: all static properties are read/write.
|
610 | d822979b | Paolo Bonzini | */
|
611 | d822979b | Paolo Bonzini | if (!prop->info->get && !prop->info->set) {
|
612 | d822979b | Paolo Bonzini | return;
|
613 | d822979b | Paolo Bonzini | } |
614 | d822979b | Paolo Bonzini | |
615 | fdae245f | Paolo Bonzini | object_property_add(obj, prop->name, prop->info->name, |
616 | 57c9fafe | Anthony Liguori | prop->info->get, prop->info->set, |
617 | dd0ba250 | Paolo Bonzini | prop->info->release, |
618 | fdae245f | Paolo Bonzini | prop, &local_err); |
619 | fdae245f | Paolo Bonzini | |
620 | fdae245f | Paolo Bonzini | if (local_err) {
|
621 | fdae245f | Paolo Bonzini | error_propagate(errp, local_err); |
622 | fdae245f | Paolo Bonzini | return;
|
623 | fdae245f | Paolo Bonzini | } |
624 | fdae245f | Paolo Bonzini | if (prop->qtype == QTYPE_NONE) {
|
625 | fdae245f | Paolo Bonzini | return;
|
626 | fdae245f | Paolo Bonzini | } |
627 | fdae245f | Paolo Bonzini | |
628 | fdae245f | Paolo Bonzini | if (prop->qtype == QTYPE_QBOOL) {
|
629 | fdae245f | Paolo Bonzini | object_property_set_bool(obj, prop->defval, prop->name, &local_err); |
630 | fdae245f | Paolo Bonzini | } else if (prop->info->enum_table) { |
631 | fdae245f | Paolo Bonzini | object_property_set_str(obj, prop->info->enum_table[prop->defval], |
632 | fdae245f | Paolo Bonzini | prop->name, &local_err); |
633 | fdae245f | Paolo Bonzini | } else if (prop->qtype == QTYPE_QINT) { |
634 | fdae245f | Paolo Bonzini | object_property_set_int(obj, prop->defval, prop->name, &local_err); |
635 | fdae245f | Paolo Bonzini | } |
636 | fdae245f | Paolo Bonzini | assert_no_error(local_err); |
637 | 6a146eba | Anthony Liguori | } |
638 | 1de81d28 | Anthony Liguori | |
639 | 9674bfe4 | Anthony Liguori | static void device_initfn(Object *obj) |
640 | 9674bfe4 | Anthony Liguori | { |
641 | 9674bfe4 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
642 | bce54474 | Paolo Bonzini | ObjectClass *class; |
643 | 9674bfe4 | Anthony Liguori | Property *prop; |
644 | 9674bfe4 | Anthony Liguori | |
645 | 9674bfe4 | Anthony Liguori | if (qdev_hotplug) {
|
646 | 9674bfe4 | Anthony Liguori | dev->hotplugged = 1;
|
647 | 9674bfe4 | Anthony Liguori | qdev_hot_added = true;
|
648 | 9674bfe4 | Anthony Liguori | } |
649 | 9674bfe4 | Anthony Liguori | |
650 | 9674bfe4 | Anthony Liguori | dev->instance_id_alias = -1;
|
651 | 9674bfe4 | Anthony Liguori | dev->state = DEV_STATE_CREATED; |
652 | 9674bfe4 | Anthony Liguori | |
653 | bce54474 | Paolo Bonzini | class = object_get_class(OBJECT(dev)); |
654 | bce54474 | Paolo Bonzini | do {
|
655 | bce54474 | Paolo Bonzini | for (prop = DEVICE_CLASS(class)->props; prop && prop->name; prop++) {
|
656 | bce54474 | Paolo Bonzini | qdev_property_add_legacy(dev, prop, NULL);
|
657 | bce54474 | Paolo Bonzini | qdev_property_add_static(dev, prop, NULL);
|
658 | bce54474 | Paolo Bonzini | } |
659 | bce54474 | Paolo Bonzini | class = object_class_get_parent(class); |
660 | bce54474 | Paolo Bonzini | } while (class != object_class_by_name(TYPE_DEVICE));
|
661 | 4b3582b0 | Paolo Bonzini | qdev_prop_set_globals(dev); |
662 | 9674bfe4 | Anthony Liguori | |
663 | f968fc68 | Anthony Liguori | object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS,
|
664 | f968fc68 | Anthony Liguori | (Object **)&dev->parent_bus, NULL);
|
665 | 9674bfe4 | Anthony Liguori | } |
666 | 9674bfe4 | Anthony Liguori | |
667 | 60adba37 | Anthony Liguori | /* Unlink device from bus and free the structure. */
|
668 | 60adba37 | Anthony Liguori | static void device_finalize(Object *obj) |
669 | 60adba37 | Anthony Liguori | { |
670 | 60adba37 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
671 | 60adba37 | Anthony Liguori | BusState *bus; |
672 | 60adba37 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
673 | 60adba37 | Anthony Liguori | |
674 | 60adba37 | Anthony Liguori | if (dev->state == DEV_STATE_INITIALIZED) {
|
675 | 60adba37 | Anthony Liguori | while (dev->num_child_bus) {
|
676 | 60adba37 | Anthony Liguori | bus = QLIST_FIRST(&dev->child_bus); |
677 | 60adba37 | Anthony Liguori | qbus_free(bus); |
678 | 60adba37 | Anthony Liguori | } |
679 | 60adba37 | Anthony Liguori | if (qdev_get_vmsd(dev)) {
|
680 | 60adba37 | Anthony Liguori | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); |
681 | 60adba37 | Anthony Liguori | } |
682 | 60adba37 | Anthony Liguori | if (dc->exit) {
|
683 | 60adba37 | Anthony Liguori | dc->exit(dev); |
684 | 60adba37 | Anthony Liguori | } |
685 | 60adba37 | Anthony Liguori | if (dev->opts) {
|
686 | 60adba37 | Anthony Liguori | qemu_opts_del(dev->opts); |
687 | 60adba37 | Anthony Liguori | } |
688 | 60adba37 | Anthony Liguori | } |
689 | 60adba37 | Anthony Liguori | } |
690 | 60adba37 | Anthony Liguori | |
691 | bce54474 | Paolo Bonzini | static void device_class_base_init(ObjectClass *class, void *data) |
692 | bce54474 | Paolo Bonzini | { |
693 | bce54474 | Paolo Bonzini | DeviceClass *klass = DEVICE_CLASS(class); |
694 | bce54474 | Paolo Bonzini | |
695 | bce54474 | Paolo Bonzini | /* We explicitly look up properties in the superclasses,
|
696 | bce54474 | Paolo Bonzini | * so do not propagate them to the subclasses.
|
697 | bce54474 | Paolo Bonzini | */
|
698 | bce54474 | Paolo Bonzini | klass->props = NULL;
|
699 | 60adba37 | Anthony Liguori | } |
700 | 60adba37 | Anthony Liguori | |
701 | 667d22d1 | Paolo Bonzini | static void qdev_remove_from_bus(Object *obj) |
702 | 667d22d1 | Paolo Bonzini | { |
703 | 667d22d1 | Paolo Bonzini | DeviceState *dev = DEVICE(obj); |
704 | 667d22d1 | Paolo Bonzini | |
705 | 667d22d1 | Paolo Bonzini | bus_remove_child(dev->parent_bus, dev); |
706 | 667d22d1 | Paolo Bonzini | } |
707 | 667d22d1 | Paolo Bonzini | |
708 | 667d22d1 | Paolo Bonzini | static void device_class_init(ObjectClass *class, void *data) |
709 | 667d22d1 | Paolo Bonzini | { |
710 | 667d22d1 | Paolo Bonzini | class->unparent = qdev_remove_from_bus; |
711 | 667d22d1 | Paolo Bonzini | } |
712 | 667d22d1 | Paolo Bonzini | |
713 | 94afdadc | Anthony Liguori | void device_reset(DeviceState *dev)
|
714 | 94afdadc | Anthony Liguori | { |
715 | 94afdadc | Anthony Liguori | DeviceClass *klass = DEVICE_GET_CLASS(dev); |
716 | 94afdadc | Anthony Liguori | |
717 | 94afdadc | Anthony Liguori | if (klass->reset) {
|
718 | 94afdadc | Anthony Liguori | klass->reset(dev); |
719 | 94afdadc | Anthony Liguori | } |
720 | 94afdadc | Anthony Liguori | } |
721 | 94afdadc | Anthony Liguori | |
722 | f05f6b4a | Paolo Bonzini | Object *qdev_get_machine(void)
|
723 | f05f6b4a | Paolo Bonzini | { |
724 | f05f6b4a | Paolo Bonzini | static Object *dev;
|
725 | f05f6b4a | Paolo Bonzini | |
726 | f05f6b4a | Paolo Bonzini | if (dev == NULL) { |
727 | dfe47e70 | Andreas Färber | dev = container_get(object_get_root(), "/machine");
|
728 | f05f6b4a | Paolo Bonzini | } |
729 | f05f6b4a | Paolo Bonzini | |
730 | f05f6b4a | Paolo Bonzini | return dev;
|
731 | f05f6b4a | Paolo Bonzini | } |
732 | f05f6b4a | Paolo Bonzini | |
733 | 32fea402 | Anthony Liguori | static TypeInfo device_type_info = {
|
734 | 32fea402 | Anthony Liguori | .name = TYPE_DEVICE, |
735 | 32fea402 | Anthony Liguori | .parent = TYPE_OBJECT, |
736 | 32fea402 | Anthony Liguori | .instance_size = sizeof(DeviceState),
|
737 | 9674bfe4 | Anthony Liguori | .instance_init = device_initfn, |
738 | 60adba37 | Anthony Liguori | .instance_finalize = device_finalize, |
739 | bce54474 | Paolo Bonzini | .class_base_init = device_class_base_init, |
740 | 667d22d1 | Paolo Bonzini | .class_init = device_class_init, |
741 | 32fea402 | Anthony Liguori | .abstract = true,
|
742 | 32fea402 | Anthony Liguori | .class_size = sizeof(DeviceClass),
|
743 | 32fea402 | Anthony Liguori | }; |
744 | 32fea402 | Anthony Liguori | |
745 | ac7d1ba6 | Anthony Liguori | static void qbus_initfn(Object *obj) |
746 | ac7d1ba6 | Anthony Liguori | { |
747 | ac7d1ba6 | Anthony Liguori | BusState *bus = BUS(obj); |
748 | ac7d1ba6 | Anthony Liguori | |
749 | ac7d1ba6 | Anthony Liguori | QTAILQ_INIT(&bus->children); |
750 | ac7d1ba6 | Anthony Liguori | } |
751 | ac7d1ba6 | Anthony Liguori | |
752 | ac7d1ba6 | Anthony Liguori | static void qbus_finalize(Object *obj) |
753 | ac7d1ba6 | Anthony Liguori | { |
754 | ac7d1ba6 | Anthony Liguori | BusState *bus = BUS(obj); |
755 | ac7d1ba6 | Anthony Liguori | BusChild *kid; |
756 | ac7d1ba6 | Anthony Liguori | |
757 | ac7d1ba6 | Anthony Liguori | while ((kid = QTAILQ_FIRST(&bus->children)) != NULL) { |
758 | ac7d1ba6 | Anthony Liguori | DeviceState *dev = kid->child; |
759 | ac7d1ba6 | Anthony Liguori | qdev_free(dev); |
760 | ac7d1ba6 | Anthony Liguori | } |
761 | ac7d1ba6 | Anthony Liguori | if (bus->parent) {
|
762 | ac7d1ba6 | Anthony Liguori | QLIST_REMOVE(bus, sibling); |
763 | ac7d1ba6 | Anthony Liguori | bus->parent->num_child_bus--; |
764 | ac7d1ba6 | Anthony Liguori | } else {
|
765 | ac7d1ba6 | Anthony Liguori | assert(bus != sysbus_get_default()); /* main_system_bus is never freed */
|
766 | ac7d1ba6 | Anthony Liguori | qemu_unregister_reset(qbus_reset_all_fn, bus); |
767 | ac7d1ba6 | Anthony Liguori | } |
768 | ac7d1ba6 | Anthony Liguori | g_free((char *)bus->name);
|
769 | ac7d1ba6 | Anthony Liguori | } |
770 | ac7d1ba6 | Anthony Liguori | |
771 | 0d936928 | Anthony Liguori | static const TypeInfo bus_info = { |
772 | 0d936928 | Anthony Liguori | .name = TYPE_BUS, |
773 | 0d936928 | Anthony Liguori | .parent = TYPE_OBJECT, |
774 | 0d936928 | Anthony Liguori | .instance_size = sizeof(BusState),
|
775 | 0d936928 | Anthony Liguori | .abstract = true,
|
776 | 0d936928 | Anthony Liguori | .class_size = sizeof(BusClass),
|
777 | ac7d1ba6 | Anthony Liguori | .instance_init = qbus_initfn, |
778 | ac7d1ba6 | Anthony Liguori | .instance_finalize = qbus_finalize, |
779 | 0d936928 | Anthony Liguori | }; |
780 | 0d936928 | Anthony Liguori | |
781 | 83f7d43a | Andreas Färber | static void qdev_register_types(void) |
782 | 32fea402 | Anthony Liguori | { |
783 | 0d936928 | Anthony Liguori | type_register_static(&bus_info); |
784 | 32fea402 | Anthony Liguori | type_register_static(&device_type_info); |
785 | 32fea402 | Anthony Liguori | } |
786 | 32fea402 | Anthony Liguori | |
787 | 83f7d43a | Andreas Färber | type_init(qdev_register_types) |