root / hw / qdev.c @ b1ee5829
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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 | 83c9f4ca | Paolo Bonzini | #include "hw/qdev.h" |
29 | 9c17d615 | Paolo Bonzini | #include "sysemu/sysemu.h" |
30 | 7b1b5d19 | Paolo Bonzini | #include "qapi/error.h" |
31 | b4a42f81 | Paolo Bonzini | #include "qapi/qmp/qerror.h" |
32 | 7b1b5d19 | Paolo Bonzini | #include "qapi/visitor.h" |
33 | 0402a5d6 | Michael S. Tsirkin | #include "qapi/qmp/qjson.h" |
34 | 0402a5d6 | Michael S. Tsirkin | #include "monitor/monitor.h" |
35 | aae9460e | Paul Brook | |
36 | ee46d8a5 | Anthony Liguori | int qdev_hotplug = 0; |
37 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_added = false; |
38 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_removed = false; |
39 | 3418bd25 | Gerd Hoffmann | |
40 | 4be9f0d1 | Anthony Liguori | const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
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41 | 4be9f0d1 | Anthony Liguori | { |
42 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
43 | 6e008585 | Anthony Liguori | return dc->vmsd;
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44 | 4be9f0d1 | Anthony Liguori | } |
45 | 4be9f0d1 | Anthony Liguori | |
46 | 4be9f0d1 | Anthony Liguori | const char *qdev_fw_name(DeviceState *dev) |
47 | 4be9f0d1 | Anthony Liguori | { |
48 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
49 | 4be9f0d1 | Anthony Liguori | |
50 | 6e008585 | Anthony Liguori | if (dc->fw_name) {
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51 | 6e008585 | Anthony Liguori | return dc->fw_name;
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52 | 4be9f0d1 | Anthony Liguori | } |
53 | 4be9f0d1 | Anthony Liguori | |
54 | 4be9f0d1 | Anthony Liguori | return object_get_typename(OBJECT(dev));
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55 | 4be9f0d1 | Anthony Liguori | } |
56 | 4be9f0d1 | Anthony Liguori | |
57 | ca2cc788 | Paolo Bonzini | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
58 | ca2cc788 | Paolo Bonzini | Error **errp); |
59 | ca2cc788 | Paolo Bonzini | |
60 | 0866aca1 | Anthony Liguori | static void bus_remove_child(BusState *bus, DeviceState *child) |
61 | 0c17542d | Markus Armbruster | { |
62 | 0866aca1 | Anthony Liguori | BusChild *kid; |
63 | 0866aca1 | Anthony Liguori | |
64 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
65 | 0866aca1 | Anthony Liguori | if (kid->child == child) {
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66 | 0866aca1 | Anthony Liguori | char name[32]; |
67 | 0866aca1 | Anthony Liguori | |
68 | 0866aca1 | Anthony Liguori | snprintf(name, sizeof(name), "child[%d]", kid->index); |
69 | 0866aca1 | Anthony Liguori | QTAILQ_REMOVE(&bus->children, kid, sibling); |
70 | 9d127820 | Paolo Bonzini | |
71 | 9d127820 | Paolo Bonzini | /* This gives back ownership of kid->child back to us. */
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72 | 0866aca1 | Anthony Liguori | object_property_del(OBJECT(bus), name, NULL);
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73 | 9d127820 | Paolo Bonzini | object_unref(OBJECT(kid->child)); |
74 | 0866aca1 | Anthony Liguori | g_free(kid); |
75 | 0866aca1 | Anthony Liguori | return;
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76 | 0866aca1 | Anthony Liguori | } |
77 | 0866aca1 | Anthony Liguori | } |
78 | 0866aca1 | Anthony Liguori | } |
79 | 0866aca1 | Anthony Liguori | |
80 | 0866aca1 | Anthony Liguori | static void bus_add_child(BusState *bus, DeviceState *child) |
81 | 0866aca1 | Anthony Liguori | { |
82 | 0866aca1 | Anthony Liguori | char name[32]; |
83 | 0866aca1 | Anthony Liguori | BusChild *kid = g_malloc0(sizeof(*kid));
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84 | 0c17542d | Markus Armbruster | |
85 | 0c17542d | Markus Armbruster | if (qdev_hotplug) {
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86 | 0c17542d | Markus Armbruster | assert(bus->allow_hotplug); |
87 | 0c17542d | Markus Armbruster | } |
88 | a5296ca9 | Anthony Liguori | |
89 | 0866aca1 | Anthony Liguori | kid->index = bus->max_index++; |
90 | 0866aca1 | Anthony Liguori | kid->child = child; |
91 | 9d127820 | Paolo Bonzini | object_ref(OBJECT(kid->child)); |
92 | a5296ca9 | Anthony Liguori | |
93 | 0866aca1 | Anthony Liguori | QTAILQ_INSERT_HEAD(&bus->children, kid, sibling); |
94 | 0866aca1 | Anthony Liguori | |
95 | 9d127820 | Paolo Bonzini | /* This transfers ownership of kid->child to the property. */
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96 | 0866aca1 | Anthony Liguori | snprintf(name, sizeof(name), "child[%d]", kid->index); |
97 | 0866aca1 | Anthony Liguori | object_property_add_link(OBJECT(bus), name, |
98 | 0866aca1 | Anthony Liguori | object_get_typename(OBJECT(child)), |
99 | 0866aca1 | Anthony Liguori | (Object **)&kid->child, |
100 | 0866aca1 | Anthony Liguori | NULL);
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101 | 0866aca1 | Anthony Liguori | } |
102 | 0866aca1 | Anthony Liguori | |
103 | 0866aca1 | Anthony Liguori | void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
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104 | 0866aca1 | Anthony Liguori | { |
105 | 9fbe6127 | Anthony Liguori | dev->parent_bus = bus; |
106 | 62d7ba66 | Paolo Bonzini | object_ref(OBJECT(bus)); |
107 | 0866aca1 | Anthony Liguori | bus_add_child(bus, dev); |
108 | 0c17542d | Markus Armbruster | } |
109 | 0c17542d | Markus Armbruster | |
110 | aae9460e | Paul Brook | /* Create a new device. This only initializes the device state structure
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111 | aae9460e | Paul Brook | and allows properties to be set. qdev_init should be called to
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112 | aae9460e | Paul Brook | initialize the actual device emulation. */
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113 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name) |
114 | aae9460e | Paul Brook | { |
115 | 0bcdeda7 | Blue Swirl | DeviceState *dev; |
116 | 0bcdeda7 | Blue Swirl | |
117 | 0bcdeda7 | Blue Swirl | dev = qdev_try_create(bus, name); |
118 | 0bcdeda7 | Blue Swirl | if (!dev) {
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119 | e92714c7 | Peter Maydell | if (bus) {
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120 | 312fd5f2 | Markus Armbruster | error_report("Unknown device '%s' for bus '%s'", name,
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121 | 23e3fbec | Eduardo Habkost | object_get_typename(OBJECT(bus))); |
122 | e92714c7 | Peter Maydell | } else {
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123 | 312fd5f2 | Markus Armbruster | error_report("Unknown device '%s' for default sysbus", name);
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124 | e92714c7 | Peter Maydell | } |
125 | 01ed1d52 | liguang | abort(); |
126 | 0bcdeda7 | Blue Swirl | } |
127 | 0bcdeda7 | Blue Swirl | |
128 | 0bcdeda7 | Blue Swirl | return dev;
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129 | 0bcdeda7 | Blue Swirl | } |
130 | 0bcdeda7 | Blue Swirl | |
131 | da57febf | Paolo Bonzini | DeviceState *qdev_try_create(BusState *bus, const char *type) |
132 | 0bcdeda7 | Blue Swirl | { |
133 | 9fbe6127 | Anthony Liguori | DeviceState *dev; |
134 | 9fbe6127 | Anthony Liguori | |
135 | da57febf | Paolo Bonzini | if (object_class_by_name(type) == NULL) { |
136 | 4ed658ca | Andreas Färber | return NULL; |
137 | 4ed658ca | Andreas Färber | } |
138 | da57febf | Paolo Bonzini | dev = DEVICE(object_new(type)); |
139 | 9fbe6127 | Anthony Liguori | if (!dev) {
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140 | 9fbe6127 | Anthony Liguori | return NULL; |
141 | 9fbe6127 | Anthony Liguori | } |
142 | 9fbe6127 | Anthony Liguori | |
143 | 10c4c98a | Gerd Hoffmann | if (!bus) {
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144 | 68694897 | Stefan Weil | bus = sysbus_get_default(); |
145 | 10c4c98a | Gerd Hoffmann | } |
146 | 10c4c98a | Gerd Hoffmann | |
147 | 9fbe6127 | Anthony Liguori | qdev_set_parent_bus(dev, bus); |
148 | b09995ae | Paolo Bonzini | object_unref(OBJECT(dev)); |
149 | 9fbe6127 | Anthony Liguori | return dev;
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150 | aae9460e | Paul Brook | } |
151 | aae9460e | Paul Brook | |
152 | aae9460e | Paul Brook | /* Initialize a device. Device properties should be set before calling
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153 | aae9460e | Paul Brook | this function. IRQs and MMIO regions should be connected/mapped after
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154 | 18cfeb52 | Markus Armbruster | calling this function.
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155 | 18cfeb52 | Markus Armbruster | On failure, destroy the device and return negative value.
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156 | 18cfeb52 | Markus Armbruster | Return 0 on success. */
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157 | 81a322d4 | Gerd Hoffmann | int qdev_init(DeviceState *dev)
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158 | aae9460e | Paul Brook | { |
159 | 249d4172 | Andreas Färber | Error *local_err = NULL;
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160 | 959f733a | Gerd Hoffmann | |
161 | 7983c8a3 | Andreas Färber | assert(!dev->realized); |
162 | 6e008585 | Anthony Liguori | |
163 | 249d4172 | Andreas Färber | object_property_set_bool(OBJECT(dev), true, "realized", &local_err); |
164 | 249d4172 | Andreas Färber | if (local_err != NULL) { |
165 | 249d4172 | Andreas Färber | error_free(local_err); |
166 | 18cfeb52 | Markus Armbruster | qdev_free(dev); |
167 | 249d4172 | Andreas Färber | return -1; |
168 | 18cfeb52 | Markus Armbruster | } |
169 | 249d4172 | Andreas Färber | return 0; |
170 | 249d4172 | Andreas Färber | } |
171 | da57febf | Paolo Bonzini | |
172 | 249d4172 | Andreas Färber | static void device_realize(DeviceState *dev, Error **err) |
173 | 249d4172 | Andreas Färber | { |
174 | 249d4172 | Andreas Färber | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
175 | da57febf | Paolo Bonzini | |
176 | 249d4172 | Andreas Färber | if (dc->init) {
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177 | 249d4172 | Andreas Färber | int rc = dc->init(dev);
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178 | 249d4172 | Andreas Färber | if (rc < 0) { |
179 | 249d4172 | Andreas Färber | error_setg(err, "Device initialization failed.");
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180 | 249d4172 | Andreas Färber | return;
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181 | 249d4172 | Andreas Färber | } |
182 | 5ab28c83 | Jan Kiszka | } |
183 | 02e2da45 | Paul Brook | } |
184 | 02e2da45 | Paul Brook | |
185 | 4d2ffa08 | Jan Kiszka | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
186 | 4d2ffa08 | Jan Kiszka | int required_for_version)
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187 | 4d2ffa08 | Jan Kiszka | { |
188 | 7983c8a3 | Andreas Färber | assert(!dev->realized); |
189 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = alias_id; |
190 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version = required_for_version; |
191 | 4d2ffa08 | Jan Kiszka | } |
192 | 4d2ffa08 | Jan Kiszka | |
193 | 56f9107e | Luiz Capitulino | void qdev_unplug(DeviceState *dev, Error **errp)
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194 | 3418bd25 | Gerd Hoffmann | { |
195 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
196 | 6e008585 | Anthony Liguori | |
197 | 3418bd25 | Gerd Hoffmann | if (!dev->parent_bus->allow_hotplug) {
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198 | 56f9107e | Luiz Capitulino | error_set(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
199 | 56f9107e | Luiz Capitulino | return;
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200 | 3418bd25 | Gerd Hoffmann | } |
201 | 6e008585 | Anthony Liguori | assert(dc->unplug != NULL);
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202 | 593831de | Amit Shah | |
203 | 0ac8ef71 | Alex Williamson | qdev_hot_removed = true;
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204 | 0ac8ef71 | Alex Williamson | |
205 | 56f9107e | Luiz Capitulino | if (dc->unplug(dev) < 0) { |
206 | 56f9107e | Luiz Capitulino | error_set(errp, QERR_UNDEFINED_ERROR); |
207 | 56f9107e | Luiz Capitulino | return;
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208 | 56f9107e | Luiz Capitulino | } |
209 | 3418bd25 | Gerd Hoffmann | } |
210 | 3418bd25 | Gerd Hoffmann | |
211 | ec990eb6 | Anthony Liguori | static int qdev_reset_one(DeviceState *dev, void *opaque) |
212 | ec990eb6 | Anthony Liguori | { |
213 | 94afdadc | Anthony Liguori | device_reset(dev); |
214 | ec990eb6 | Anthony Liguori | |
215 | ec990eb6 | Anthony Liguori | return 0; |
216 | ec990eb6 | Anthony Liguori | } |
217 | ec990eb6 | Anthony Liguori | |
218 | b4694b7c | Isaku Yamahata | static int qbus_reset_one(BusState *bus, void *opaque) |
219 | b4694b7c | Isaku Yamahata | { |
220 | 0d936928 | Anthony Liguori | BusClass *bc = BUS_GET_CLASS(bus); |
221 | 0d936928 | Anthony Liguori | if (bc->reset) {
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222 | 0d936928 | Anthony Liguori | return bc->reset(bus);
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223 | b4694b7c | Isaku Yamahata | } |
224 | b4694b7c | Isaku Yamahata | return 0; |
225 | b4694b7c | Isaku Yamahata | } |
226 | b4694b7c | Isaku Yamahata | |
227 | 5af0a04b | Isaku Yamahata | void qdev_reset_all(DeviceState *dev)
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228 | 5af0a04b | Isaku Yamahata | { |
229 | 5af0a04b | Isaku Yamahata | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL);
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230 | 5af0a04b | Isaku Yamahata | } |
231 | 5af0a04b | Isaku Yamahata | |
232 | d0508c36 | Paolo Bonzini | void qbus_reset_all(BusState *bus)
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233 | d0508c36 | Paolo Bonzini | { |
234 | d0508c36 | Paolo Bonzini | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
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235 | d0508c36 | Paolo Bonzini | } |
236 | d0508c36 | Paolo Bonzini | |
237 | 80376c3f | Isaku Yamahata | void qbus_reset_all_fn(void *opaque) |
238 | 80376c3f | Isaku Yamahata | { |
239 | 80376c3f | Isaku Yamahata | BusState *bus = opaque; |
240 | d0508c36 | Paolo Bonzini | qbus_reset_all(bus); |
241 | 80376c3f | Isaku Yamahata | } |
242 | 80376c3f | Isaku Yamahata | |
243 | 3418bd25 | Gerd Hoffmann | /* can be used as ->unplug() callback for the simple cases */
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244 | 3418bd25 | Gerd Hoffmann | int qdev_simple_unplug_cb(DeviceState *dev)
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245 | 3418bd25 | Gerd Hoffmann | { |
246 | 3418bd25 | Gerd Hoffmann | /* just zap it */
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247 | 3418bd25 | Gerd Hoffmann | qdev_free(dev); |
248 | 3418bd25 | Gerd Hoffmann | return 0; |
249 | 3418bd25 | Gerd Hoffmann | } |
250 | 3418bd25 | Gerd Hoffmann | |
251 | 3b29a101 | Michael Tokarev | |
252 | 3b29a101 | Michael Tokarev | /* Like qdev_init(), but terminate program via error_report() instead of
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253 | e23a1b33 | Markus Armbruster | returning an error value. This is okay during machine creation.
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254 | e23a1b33 | Markus Armbruster | Don't use for hotplug, because there callers need to recover from
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255 | e23a1b33 | Markus Armbruster | failure. Exception: if you know the device's init() callback can't
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256 | e23a1b33 | Markus Armbruster | fail, then qdev_init_nofail() can't fail either, and is therefore
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257 | e23a1b33 | Markus Armbruster | usable even then. But relying on the device implementation that
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258 | e23a1b33 | Markus Armbruster | way is somewhat unclean, and best avoided. */
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259 | e23a1b33 | Markus Armbruster | void qdev_init_nofail(DeviceState *dev)
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260 | e23a1b33 | Markus Armbruster | { |
261 | 7de3abe5 | Anthony Liguori | const char *typename = object_get_typename(OBJECT(dev)); |
262 | 7de3abe5 | Anthony Liguori | |
263 | bd6c9a61 | Markus Armbruster | if (qdev_init(dev) < 0) { |
264 | 7de3abe5 | Anthony Liguori | error_report("Initialization of device %s failed", typename);
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265 | bd6c9a61 | Markus Armbruster | exit(1);
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266 | bd6c9a61 | Markus Armbruster | } |
267 | e23a1b33 | Markus Armbruster | } |
268 | e23a1b33 | Markus Armbruster | |
269 | 02e2da45 | Paul Brook | /* Unlink device from bus and free the structure. */
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270 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev)
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271 | 02e2da45 | Paul Brook | { |
272 | dc7389b7 | Paolo Bonzini | object_unparent(OBJECT(dev)); |
273 | aae9460e | Paul Brook | } |
274 | aae9460e | Paul Brook | |
275 | 3418bd25 | Gerd Hoffmann | void qdev_machine_creation_done(void) |
276 | 3418bd25 | Gerd Hoffmann | { |
277 | 3418bd25 | Gerd Hoffmann | /*
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278 | 3418bd25 | Gerd Hoffmann | * ok, initial machine setup is done, starting from now we can
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279 | 3418bd25 | Gerd Hoffmann | * only create hotpluggable devices
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280 | 3418bd25 | Gerd Hoffmann | */
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281 | 3418bd25 | Gerd Hoffmann | qdev_hotplug = 1;
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282 | 3418bd25 | Gerd Hoffmann | } |
283 | 3418bd25 | Gerd Hoffmann | |
284 | 0ac8ef71 | Alex Williamson | bool qdev_machine_modified(void) |
285 | 0ac8ef71 | Alex Williamson | { |
286 | 0ac8ef71 | Alex Williamson | return qdev_hot_added || qdev_hot_removed;
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287 | 0ac8ef71 | Alex Williamson | } |
288 | 0ac8ef71 | Alex Williamson | |
289 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev) |
290 | aae9460e | Paul Brook | { |
291 | 02e2da45 | Paul Brook | return dev->parent_bus;
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292 | aae9460e | Paul Brook | } |
293 | aae9460e | Paul Brook | |
294 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
295 | aae9460e | Paul Brook | { |
296 | 1e5b31e6 | Peter A. G. Crosthwaite | dev->gpio_in = qemu_extend_irqs(dev->gpio_in, dev->num_gpio_in, handler, |
297 | 1e5b31e6 | Peter A. G. Crosthwaite | dev, n); |
298 | 1e5b31e6 | Peter A. G. Crosthwaite | dev->num_gpio_in += n; |
299 | aae9460e | Paul Brook | } |
300 | aae9460e | Paul Brook | |
301 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
302 | aae9460e | Paul Brook | { |
303 | aae9460e | Paul Brook | assert(dev->num_gpio_out == 0);
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304 | aae9460e | Paul Brook | dev->num_gpio_out = n; |
305 | aae9460e | Paul Brook | dev->gpio_out = pins; |
306 | aae9460e | Paul Brook | } |
307 | aae9460e | Paul Brook | |
308 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
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309 | aae9460e | Paul Brook | { |
310 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_in);
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311 | aae9460e | Paul Brook | return dev->gpio_in[n];
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312 | aae9460e | Paul Brook | } |
313 | aae9460e | Paul Brook | |
314 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
315 | aae9460e | Paul Brook | { |
316 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_out);
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317 | aae9460e | Paul Brook | dev->gpio_out[n] = pin; |
318 | aae9460e | Paul Brook | } |
319 | aae9460e | Paul Brook | |
320 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
321 | 4d6ae674 | Paul Brook | { |
322 | 02e2da45 | Paul Brook | BusState *bus; |
323 | 4d6ae674 | Paul Brook | |
324 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
325 | 4d6ae674 | Paul Brook | if (strcmp(name, bus->name) == 0) { |
326 | 02e2da45 | Paul Brook | return bus;
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327 | 4d6ae674 | Paul Brook | } |
328 | 4d6ae674 | Paul Brook | } |
329 | 4d6ae674 | Paul Brook | return NULL; |
330 | 4d6ae674 | Paul Brook | } |
331 | 4d6ae674 | Paul Brook | |
332 | 81699d8a | Anthony Liguori | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
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333 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
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334 | 81699d8a | Anthony Liguori | { |
335 | 0866aca1 | Anthony Liguori | BusChild *kid; |
336 | 81699d8a | Anthony Liguori | int err;
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337 | 81699d8a | Anthony Liguori | |
338 | 81699d8a | Anthony Liguori | if (busfn) {
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339 | 81699d8a | Anthony Liguori | err = busfn(bus, opaque); |
340 | 81699d8a | Anthony Liguori | if (err) {
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341 | 81699d8a | Anthony Liguori | return err;
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342 | 81699d8a | Anthony Liguori | } |
343 | 81699d8a | Anthony Liguori | } |
344 | 81699d8a | Anthony Liguori | |
345 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
346 | 0866aca1 | Anthony Liguori | err = qdev_walk_children(kid->child, devfn, busfn, opaque); |
347 | 81699d8a | Anthony Liguori | if (err < 0) { |
348 | 81699d8a | Anthony Liguori | return err;
|
349 | 81699d8a | Anthony Liguori | } |
350 | 81699d8a | Anthony Liguori | } |
351 | 81699d8a | Anthony Liguori | |
352 | 81699d8a | Anthony Liguori | return 0; |
353 | 81699d8a | Anthony Liguori | } |
354 | 81699d8a | Anthony Liguori | |
355 | 81699d8a | Anthony Liguori | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
|
356 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
357 | 81699d8a | Anthony Liguori | { |
358 | 81699d8a | Anthony Liguori | BusState *bus; |
359 | 81699d8a | Anthony Liguori | int err;
|
360 | 81699d8a | Anthony Liguori | |
361 | 81699d8a | Anthony Liguori | if (devfn) {
|
362 | 81699d8a | Anthony Liguori | err = devfn(dev, opaque); |
363 | 81699d8a | Anthony Liguori | if (err) {
|
364 | 81699d8a | Anthony Liguori | return err;
|
365 | 81699d8a | Anthony Liguori | } |
366 | 81699d8a | Anthony Liguori | } |
367 | 81699d8a | Anthony Liguori | |
368 | 81699d8a | Anthony Liguori | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
369 | 81699d8a | Anthony Liguori | err = qbus_walk_children(bus, devfn, busfn, opaque); |
370 | 81699d8a | Anthony Liguori | if (err < 0) { |
371 | 81699d8a | Anthony Liguori | return err;
|
372 | 81699d8a | Anthony Liguori | } |
373 | 81699d8a | Anthony Liguori | } |
374 | 81699d8a | Anthony Liguori | |
375 | 81699d8a | Anthony Liguori | return 0; |
376 | 81699d8a | Anthony Liguori | } |
377 | 81699d8a | Anthony Liguori | |
378 | a2ee6b4f | Isaku Yamahata | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
379 | 3418bd25 | Gerd Hoffmann | { |
380 | 0866aca1 | Anthony Liguori | BusChild *kid; |
381 | 0866aca1 | Anthony Liguori | DeviceState *ret; |
382 | 3418bd25 | Gerd Hoffmann | BusState *child; |
383 | 3418bd25 | Gerd Hoffmann | |
384 | 0866aca1 | Anthony Liguori | QTAILQ_FOREACH(kid, &bus->children, sibling) { |
385 | 0866aca1 | Anthony Liguori | DeviceState *dev = kid->child; |
386 | 0866aca1 | Anthony Liguori | |
387 | 0866aca1 | Anthony Liguori | if (dev->id && strcmp(dev->id, id) == 0) { |
388 | 3418bd25 | Gerd Hoffmann | return dev;
|
389 | 0866aca1 | Anthony Liguori | } |
390 | 0866aca1 | Anthony Liguori | |
391 | 3418bd25 | Gerd Hoffmann | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
392 | 3418bd25 | Gerd Hoffmann | ret = qdev_find_recursive(child, id); |
393 | 3418bd25 | Gerd Hoffmann | if (ret) {
|
394 | 3418bd25 | Gerd Hoffmann | return ret;
|
395 | 3418bd25 | Gerd Hoffmann | } |
396 | 3418bd25 | Gerd Hoffmann | } |
397 | 3418bd25 | Gerd Hoffmann | } |
398 | 3418bd25 | Gerd Hoffmann | return NULL; |
399 | 3418bd25 | Gerd Hoffmann | } |
400 | 3418bd25 | Gerd Hoffmann | |
401 | 013e1182 | Paolo Bonzini | static void qbus_realize(BusState *bus, DeviceState *parent, const char *name) |
402 | 02e2da45 | Paul Brook | { |
403 | ac7d1ba6 | Anthony Liguori | const char *typename = object_get_typename(OBJECT(bus)); |
404 | d271de9f | Gerd Hoffmann | char *buf;
|
405 | d271de9f | Gerd Hoffmann | int i,len;
|
406 | 02e2da45 | Paul Brook | |
407 | 013e1182 | Paolo Bonzini | bus->parent = parent; |
408 | 013e1182 | Paolo Bonzini | |
409 | 013e1182 | Paolo Bonzini | if (name) {
|
410 | 013e1182 | Paolo Bonzini | bus->name = g_strdup(name); |
411 | ac7d1ba6 | Anthony Liguori | } else if (bus->parent && bus->parent->id) { |
412 | d271de9f | Gerd Hoffmann | /* parent device has id -> use it for bus name */
|
413 | ac7d1ba6 | Anthony Liguori | len = strlen(bus->parent->id) + 16;
|
414 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
415 | ac7d1ba6 | Anthony Liguori | snprintf(buf, len, "%s.%d", bus->parent->id, bus->parent->num_child_bus);
|
416 | d271de9f | Gerd Hoffmann | bus->name = buf; |
417 | d271de9f | Gerd Hoffmann | } else {
|
418 | d271de9f | Gerd Hoffmann | /* no id -> use lowercase bus type for bus name */
|
419 | 0d936928 | Anthony Liguori | len = strlen(typename) + 16;
|
420 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
421 | 0d936928 | Anthony Liguori | len = snprintf(buf, len, "%s.%d", typename,
|
422 | ac7d1ba6 | Anthony Liguori | bus->parent ? bus->parent->num_child_bus : 0);
|
423 | d271de9f | Gerd Hoffmann | for (i = 0; i < len; i++) |
424 | bb87ece5 | Christoph Egger | buf[i] = qemu_tolower(buf[i]); |
425 | d271de9f | Gerd Hoffmann | bus->name = buf; |
426 | d271de9f | Gerd Hoffmann | } |
427 | d271de9f | Gerd Hoffmann | |
428 | ac7d1ba6 | Anthony Liguori | if (bus->parent) {
|
429 | ac7d1ba6 | Anthony Liguori | QLIST_INSERT_HEAD(&bus->parent->child_bus, bus, sibling); |
430 | ac7d1ba6 | Anthony Liguori | bus->parent->num_child_bus++; |
431 | ac7d1ba6 | Anthony Liguori | object_property_add_child(OBJECT(bus->parent), bus->name, OBJECT(bus), NULL);
|
432 | b09995ae | Paolo Bonzini | object_unref(OBJECT(bus)); |
433 | 8185d216 | Paolo Bonzini | } else if (bus != sysbus_get_default()) { |
434 | 80376c3f | Isaku Yamahata | /* TODO: once all bus devices are qdevified,
|
435 | 80376c3f | Isaku Yamahata | only reset handler for main_system_bus should be registered here. */
|
436 | 80376c3f | Isaku Yamahata | qemu_register_reset(qbus_reset_all_fn, bus); |
437 | 02e2da45 | Paul Brook | } |
438 | cd739fb6 | Gerd Hoffmann | } |
439 | cd739fb6 | Gerd Hoffmann | |
440 | 6853d27a | Paolo Bonzini | static void bus_unparent(Object *obj) |
441 | 6853d27a | Paolo Bonzini | { |
442 | 6853d27a | Paolo Bonzini | BusState *bus = BUS(obj); |
443 | 6853d27a | Paolo Bonzini | BusChild *kid; |
444 | 6853d27a | Paolo Bonzini | |
445 | 6853d27a | Paolo Bonzini | while ((kid = QTAILQ_FIRST(&bus->children)) != NULL) { |
446 | 6853d27a | Paolo Bonzini | DeviceState *dev = kid->child; |
447 | 6853d27a | Paolo Bonzini | qdev_free(dev); |
448 | 6853d27a | Paolo Bonzini | } |
449 | 6853d27a | Paolo Bonzini | if (bus->parent) {
|
450 | 6853d27a | Paolo Bonzini | QLIST_REMOVE(bus, sibling); |
451 | 6853d27a | Paolo Bonzini | bus->parent->num_child_bus--; |
452 | 6853d27a | Paolo Bonzini | bus->parent = NULL;
|
453 | 6853d27a | Paolo Bonzini | } else {
|
454 | 6853d27a | Paolo Bonzini | assert(bus != sysbus_get_default()); /* main_system_bus is never freed */
|
455 | 6853d27a | Paolo Bonzini | qemu_unregister_reset(qbus_reset_all_fn, bus); |
456 | 6853d27a | Paolo Bonzini | } |
457 | 6853d27a | Paolo Bonzini | } |
458 | 6853d27a | Paolo Bonzini | |
459 | 39355c38 | Paolo Bonzini | void qbus_create_inplace(void *bus, const char *typename, |
460 | 0d936928 | Anthony Liguori | DeviceState *parent, const char *name) |
461 | cd739fb6 | Gerd Hoffmann | { |
462 | 0d936928 | Anthony Liguori | object_initialize(bus, typename); |
463 | 013e1182 | Paolo Bonzini | qbus_realize(bus, parent, name); |
464 | 02e2da45 | Paul Brook | } |
465 | cae4956e | Gerd Hoffmann | |
466 | 0d936928 | Anthony Liguori | BusState *qbus_create(const char *typename, DeviceState *parent, const char *name) |
467 | 2da8bb92 | Isaku Yamahata | { |
468 | cd739fb6 | Gerd Hoffmann | BusState *bus; |
469 | cd739fb6 | Gerd Hoffmann | |
470 | 0d936928 | Anthony Liguori | bus = BUS(object_new(typename)); |
471 | 013e1182 | Paolo Bonzini | qbus_realize(bus, parent, name); |
472 | ac7d1ba6 | Anthony Liguori | |
473 | 02e2da45 | Paul Brook | return bus;
|
474 | 2da8bb92 | Isaku Yamahata | } |
475 | 2da8bb92 | Isaku Yamahata | |
476 | 131ec1bd | Gerd Hoffmann | void qbus_free(BusState *bus)
|
477 | 131ec1bd | Gerd Hoffmann | { |
478 | dc7389b7 | Paolo Bonzini | object_unparent(OBJECT(bus)); |
479 | 0d936928 | Anthony Liguori | } |
480 | 0d936928 | Anthony Liguori | |
481 | 0d936928 | Anthony Liguori | static char *bus_get_fw_dev_path(BusState *bus, DeviceState *dev) |
482 | 0d936928 | Anthony Liguori | { |
483 | 0d936928 | Anthony Liguori | BusClass *bc = BUS_GET_CLASS(bus); |
484 | 0d936928 | Anthony Liguori | |
485 | 0d936928 | Anthony Liguori | if (bc->get_fw_dev_path) {
|
486 | 0d936928 | Anthony Liguori | return bc->get_fw_dev_path(dev);
|
487 | 131ec1bd | Gerd Hoffmann | } |
488 | 0d936928 | Anthony Liguori | |
489 | 0d936928 | Anthony Liguori | return NULL; |
490 | 131ec1bd | Gerd Hoffmann | } |
491 | 131ec1bd | Gerd Hoffmann | |
492 | 1ca4d09a | Gleb Natapov | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
493 | 1ca4d09a | Gleb Natapov | { |
494 | 1ca4d09a | Gleb Natapov | int l = 0; |
495 | 1ca4d09a | Gleb Natapov | |
496 | 1ca4d09a | Gleb Natapov | if (dev && dev->parent_bus) {
|
497 | 1ca4d09a | Gleb Natapov | char *d;
|
498 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); |
499 | 0d936928 | Anthony Liguori | d = bus_get_fw_dev_path(dev->parent_bus, dev); |
500 | 0d936928 | Anthony Liguori | if (d) {
|
501 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l, size - l, "%s", d);
|
502 | 7267c094 | Anthony Liguori | g_free(d); |
503 | 1ca4d09a | Gleb Natapov | } else {
|
504 | f79f2bfc | Anthony Liguori | l += snprintf(p + l, size - l, "%s", object_get_typename(OBJECT(dev)));
|
505 | 1ca4d09a | Gleb Natapov | } |
506 | 1ca4d09a | Gleb Natapov | } |
507 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l , size - l, "/");
|
508 | 1ca4d09a | Gleb Natapov | |
509 | 1ca4d09a | Gleb Natapov | return l;
|
510 | 1ca4d09a | Gleb Natapov | } |
511 | 1ca4d09a | Gleb Natapov | |
512 | 1ca4d09a | Gleb Natapov | char* qdev_get_fw_dev_path(DeviceState *dev)
|
513 | 1ca4d09a | Gleb Natapov | { |
514 | 1ca4d09a | Gleb Natapov | char path[128]; |
515 | 1ca4d09a | Gleb Natapov | int l;
|
516 | 1ca4d09a | Gleb Natapov | |
517 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev, path, 128);
|
518 | 1ca4d09a | Gleb Natapov | |
519 | 1ca4d09a | Gleb Natapov | path[l-1] = '\0'; |
520 | 1ca4d09a | Gleb Natapov | |
521 | a5cf8262 | Jim Meyering | return g_strdup(path);
|
522 | 1ca4d09a | Gleb Natapov | } |
523 | 85ed303b | Anthony Liguori | |
524 | 09e5ab63 | Anthony Liguori | char *qdev_get_dev_path(DeviceState *dev)
|
525 | 85ed303b | Anthony Liguori | { |
526 | 0d936928 | Anthony Liguori | BusClass *bc; |
527 | 09e5ab63 | Anthony Liguori | |
528 | 09e5ab63 | Anthony Liguori | if (!dev || !dev->parent_bus) {
|
529 | 09e5ab63 | Anthony Liguori | return NULL; |
530 | 09e5ab63 | Anthony Liguori | } |
531 | 09e5ab63 | Anthony Liguori | |
532 | 0d936928 | Anthony Liguori | bc = BUS_GET_CLASS(dev->parent_bus); |
533 | 0d936928 | Anthony Liguori | if (bc->get_dev_path) {
|
534 | 0d936928 | Anthony Liguori | return bc->get_dev_path(dev);
|
535 | 09e5ab63 | Anthony Liguori | } |
536 | 09e5ab63 | Anthony Liguori | |
537 | 09e5ab63 | Anthony Liguori | return NULL; |
538 | 44677ded | Anthony Liguori | } |
539 | a5296ca9 | Anthony Liguori | |
540 | a5296ca9 | Anthony Liguori | /**
|
541 | a5296ca9 | Anthony Liguori | * Legacy property handling
|
542 | a5296ca9 | Anthony Liguori | */
|
543 | a5296ca9 | Anthony Liguori | |
544 | 57c9fafe | Anthony Liguori | static void qdev_get_legacy_property(Object *obj, Visitor *v, void *opaque, |
545 | a5296ca9 | Anthony Liguori | const char *name, Error **errp) |
546 | a5296ca9 | Anthony Liguori | { |
547 | 57c9fafe | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
548 | a5296ca9 | Anthony Liguori | Property *prop = opaque; |
549 | a5296ca9 | Anthony Liguori | |
550 | e3cb6ba6 | Paolo Bonzini | char buffer[1024]; |
551 | e3cb6ba6 | Paolo Bonzini | char *ptr = buffer;
|
552 | a5296ca9 | Anthony Liguori | |
553 | e3cb6ba6 | Paolo Bonzini | prop->info->print(dev, prop, buffer, sizeof(buffer));
|
554 | e3cb6ba6 | Paolo Bonzini | visit_type_str(v, &ptr, name, errp); |
555 | a5296ca9 | Anthony Liguori | } |
556 | a5296ca9 | Anthony Liguori | |
557 | 57c9fafe | Anthony Liguori | static void qdev_set_legacy_property(Object *obj, Visitor *v, void *opaque, |
558 | a5296ca9 | Anthony Liguori | const char *name, Error **errp) |
559 | a5296ca9 | Anthony Liguori | { |
560 | 57c9fafe | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
561 | a5296ca9 | Anthony Liguori | Property *prop = opaque; |
562 | e3cb6ba6 | Paolo Bonzini | Error *local_err = NULL;
|
563 | e3cb6ba6 | Paolo Bonzini | char *ptr = NULL; |
564 | e3cb6ba6 | Paolo Bonzini | int ret;
|
565 | a5296ca9 | Anthony Liguori | |
566 | 7983c8a3 | Andreas Färber | if (dev->realized) {
|
567 | b000dfbd | Peter Maydell | qdev_prop_set_after_realize(dev, name, errp); |
568 | a5296ca9 | Anthony Liguori | return;
|
569 | a5296ca9 | Anthony Liguori | } |
570 | a5296ca9 | Anthony Liguori | |
571 | e3cb6ba6 | Paolo Bonzini | visit_type_str(v, &ptr, name, &local_err); |
572 | e3cb6ba6 | Paolo Bonzini | if (local_err) {
|
573 | e3cb6ba6 | Paolo Bonzini | error_propagate(errp, local_err); |
574 | e3cb6ba6 | Paolo Bonzini | return;
|
575 | e3cb6ba6 | Paolo Bonzini | } |
576 | a5296ca9 | Anthony Liguori | |
577 | e3cb6ba6 | Paolo Bonzini | ret = prop->info->parse(dev, prop, ptr); |
578 | 7db4c4e8 | Paolo Bonzini | error_set_from_qdev_prop_error(errp, ret, dev, prop, ptr); |
579 | e3cb6ba6 | Paolo Bonzini | g_free(ptr); |
580 | a5296ca9 | Anthony Liguori | } |
581 | a5296ca9 | Anthony Liguori | |
582 | a5296ca9 | Anthony Liguori | /**
|
583 | a5296ca9 | Anthony Liguori | * @qdev_add_legacy_property - adds a legacy property
|
584 | a5296ca9 | Anthony Liguori | *
|
585 | a5296ca9 | Anthony Liguori | * Do not use this is new code! Properties added through this interface will
|
586 | ca2cc788 | Paolo Bonzini | * be given names and types in the "legacy" namespace.
|
587 | a5296ca9 | Anthony Liguori | *
|
588 | 68ee3569 | Paolo Bonzini | * Legacy properties are string versions of other OOM properties. The format
|
589 | 68ee3569 | Paolo Bonzini | * of the string depends on the property type.
|
590 | a5296ca9 | Anthony Liguori | */
|
591 | a5296ca9 | Anthony Liguori | void qdev_property_add_legacy(DeviceState *dev, Property *prop,
|
592 | a5296ca9 | Anthony Liguori | Error **errp) |
593 | a5296ca9 | Anthony Liguori | { |
594 | ca2cc788 | Paolo Bonzini | gchar *name, *type; |
595 | a5296ca9 | Anthony Liguori | |
596 | f3be016d | Anthony Liguori | /* Register pointer properties as legacy properties */
|
597 | f3be016d | Anthony Liguori | if (!prop->info->print && !prop->info->parse &&
|
598 | f3be016d | Anthony Liguori | (prop->info->set || prop->info->get)) { |
599 | 68ee3569 | Paolo Bonzini | return;
|
600 | 68ee3569 | Paolo Bonzini | } |
601 | f3be016d | Anthony Liguori | |
602 | ca2cc788 | Paolo Bonzini | name = g_strdup_printf("legacy-%s", prop->name);
|
603 | cafe5bdb | Paolo Bonzini | type = g_strdup_printf("legacy<%s>",
|
604 | cafe5bdb | Paolo Bonzini | prop->info->legacy_name ?: prop->info->name); |
605 | a5296ca9 | Anthony Liguori | |
606 | 57c9fafe | Anthony Liguori | object_property_add(OBJECT(dev), name, type, |
607 | 68ee3569 | Paolo Bonzini | prop->info->print ? qdev_get_legacy_property : prop->info->get, |
608 | 68ee3569 | Paolo Bonzini | prop->info->parse ? qdev_set_legacy_property : prop->info->set, |
609 | 57c9fafe | Anthony Liguori | NULL,
|
610 | 57c9fafe | Anthony Liguori | prop, errp); |
611 | a5296ca9 | Anthony Liguori | |
612 | a5296ca9 | Anthony Liguori | g_free(type); |
613 | ca2cc788 | Paolo Bonzini | g_free(name); |
614 | ca2cc788 | Paolo Bonzini | } |
615 | ca2cc788 | Paolo Bonzini | |
616 | ca2cc788 | Paolo Bonzini | /**
|
617 | ca2cc788 | Paolo Bonzini | * @qdev_property_add_static - add a @Property to a device.
|
618 | ca2cc788 | Paolo Bonzini | *
|
619 | ca2cc788 | Paolo Bonzini | * Static properties access data in a struct. The actual type of the
|
620 | ca2cc788 | Paolo Bonzini | * property and the field depends on the property type.
|
621 | ca2cc788 | Paolo Bonzini | */
|
622 | ca2cc788 | Paolo Bonzini | void qdev_property_add_static(DeviceState *dev, Property *prop,
|
623 | ca2cc788 | Paolo Bonzini | Error **errp) |
624 | ca2cc788 | Paolo Bonzini | { |
625 | fdae245f | Paolo Bonzini | Error *local_err = NULL;
|
626 | fdae245f | Paolo Bonzini | Object *obj = OBJECT(dev); |
627 | fdae245f | Paolo Bonzini | |
628 | d822979b | Paolo Bonzini | /*
|
629 | d822979b | Paolo Bonzini | * TODO qdev_prop_ptr does not have getters or setters. It must
|
630 | d822979b | Paolo Bonzini | * go now that it can be replaced with links. The test should be
|
631 | d822979b | Paolo Bonzini | * removed along with it: all static properties are read/write.
|
632 | d822979b | Paolo Bonzini | */
|
633 | d822979b | Paolo Bonzini | if (!prop->info->get && !prop->info->set) {
|
634 | d822979b | Paolo Bonzini | return;
|
635 | d822979b | Paolo Bonzini | } |
636 | d822979b | Paolo Bonzini | |
637 | fdae245f | Paolo Bonzini | object_property_add(obj, prop->name, prop->info->name, |
638 | 57c9fafe | Anthony Liguori | prop->info->get, prop->info->set, |
639 | dd0ba250 | Paolo Bonzini | prop->info->release, |
640 | fdae245f | Paolo Bonzini | prop, &local_err); |
641 | fdae245f | Paolo Bonzini | |
642 | fdae245f | Paolo Bonzini | if (local_err) {
|
643 | fdae245f | Paolo Bonzini | error_propagate(errp, local_err); |
644 | fdae245f | Paolo Bonzini | return;
|
645 | fdae245f | Paolo Bonzini | } |
646 | fdae245f | Paolo Bonzini | if (prop->qtype == QTYPE_NONE) {
|
647 | fdae245f | Paolo Bonzini | return;
|
648 | fdae245f | Paolo Bonzini | } |
649 | fdae245f | Paolo Bonzini | |
650 | fdae245f | Paolo Bonzini | if (prop->qtype == QTYPE_QBOOL) {
|
651 | fdae245f | Paolo Bonzini | object_property_set_bool(obj, prop->defval, prop->name, &local_err); |
652 | fdae245f | Paolo Bonzini | } else if (prop->info->enum_table) { |
653 | fdae245f | Paolo Bonzini | object_property_set_str(obj, prop->info->enum_table[prop->defval], |
654 | fdae245f | Paolo Bonzini | prop->name, &local_err); |
655 | fdae245f | Paolo Bonzini | } else if (prop->qtype == QTYPE_QINT) { |
656 | fdae245f | Paolo Bonzini | object_property_set_int(obj, prop->defval, prop->name, &local_err); |
657 | fdae245f | Paolo Bonzini | } |
658 | fdae245f | Paolo Bonzini | assert_no_error(local_err); |
659 | 6a146eba | Anthony Liguori | } |
660 | 1de81d28 | Anthony Liguori | |
661 | 249d4172 | Andreas Färber | static bool device_get_realized(Object *obj, Error **err) |
662 | 249d4172 | Andreas Färber | { |
663 | 249d4172 | Andreas Färber | DeviceState *dev = DEVICE(obj); |
664 | 249d4172 | Andreas Färber | return dev->realized;
|
665 | 249d4172 | Andreas Färber | } |
666 | 249d4172 | Andreas Färber | |
667 | 249d4172 | Andreas Färber | static void device_set_realized(Object *obj, bool value, Error **err) |
668 | 249d4172 | Andreas Färber | { |
669 | 249d4172 | Andreas Färber | DeviceState *dev = DEVICE(obj); |
670 | 249d4172 | Andreas Färber | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
671 | 249d4172 | Andreas Färber | Error *local_err = NULL;
|
672 | 249d4172 | Andreas Färber | |
673 | 249d4172 | Andreas Färber | if (value && !dev->realized) {
|
674 | 249d4172 | Andreas Färber | if (dc->realize) {
|
675 | 249d4172 | Andreas Färber | dc->realize(dev, &local_err); |
676 | 249d4172 | Andreas Färber | } |
677 | 249d4172 | Andreas Färber | |
678 | 249d4172 | Andreas Färber | if (!obj->parent && local_err == NULL) { |
679 | 249d4172 | Andreas Färber | static int unattached_count; |
680 | 249d4172 | Andreas Färber | gchar *name = g_strdup_printf("device[%d]", unattached_count++);
|
681 | 249d4172 | Andreas Färber | |
682 | 249d4172 | Andreas Färber | object_property_add_child(container_get(qdev_get_machine(), |
683 | 249d4172 | Andreas Färber | "/unattached"),
|
684 | 249d4172 | Andreas Färber | name, obj, &local_err); |
685 | 249d4172 | Andreas Färber | g_free(name); |
686 | 249d4172 | Andreas Färber | } |
687 | 249d4172 | Andreas Färber | |
688 | 249d4172 | Andreas Färber | if (qdev_get_vmsd(dev) && local_err == NULL) { |
689 | 249d4172 | Andreas Färber | vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
|
690 | 249d4172 | Andreas Färber | dev->instance_id_alias, |
691 | 249d4172 | Andreas Färber | dev->alias_required_for_version); |
692 | 249d4172 | Andreas Färber | } |
693 | 249d4172 | Andreas Färber | if (dev->hotplugged && local_err == NULL) { |
694 | 249d4172 | Andreas Färber | device_reset(dev); |
695 | 249d4172 | Andreas Färber | } |
696 | 249d4172 | Andreas Färber | } else if (!value && dev->realized) { |
697 | 249d4172 | Andreas Färber | if (dc->unrealize) {
|
698 | 249d4172 | Andreas Färber | dc->unrealize(dev, &local_err); |
699 | 249d4172 | Andreas Färber | } |
700 | 249d4172 | Andreas Färber | } |
701 | 249d4172 | Andreas Färber | |
702 | 249d4172 | Andreas Färber | if (local_err != NULL) { |
703 | 249d4172 | Andreas Färber | error_propagate(err, local_err); |
704 | 249d4172 | Andreas Färber | return;
|
705 | 249d4172 | Andreas Färber | } |
706 | 249d4172 | Andreas Färber | |
707 | 249d4172 | Andreas Färber | dev->realized = value; |
708 | 249d4172 | Andreas Färber | } |
709 | 249d4172 | Andreas Färber | |
710 | 9674bfe4 | Anthony Liguori | static void device_initfn(Object *obj) |
711 | 9674bfe4 | Anthony Liguori | { |
712 | 9674bfe4 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
713 | bce54474 | Paolo Bonzini | ObjectClass *class; |
714 | 9674bfe4 | Anthony Liguori | Property *prop; |
715 | e769bdc2 | Peter Maydell | Error *err = NULL;
|
716 | 9674bfe4 | Anthony Liguori | |
717 | 9674bfe4 | Anthony Liguori | if (qdev_hotplug) {
|
718 | 9674bfe4 | Anthony Liguori | dev->hotplugged = 1;
|
719 | 9674bfe4 | Anthony Liguori | qdev_hot_added = true;
|
720 | 9674bfe4 | Anthony Liguori | } |
721 | 9674bfe4 | Anthony Liguori | |
722 | 9674bfe4 | Anthony Liguori | dev->instance_id_alias = -1;
|
723 | 7983c8a3 | Andreas Färber | dev->realized = false;
|
724 | 9674bfe4 | Anthony Liguori | |
725 | 249d4172 | Andreas Färber | object_property_add_bool(obj, "realized",
|
726 | 249d4172 | Andreas Färber | device_get_realized, device_set_realized, NULL);
|
727 | 249d4172 | Andreas Färber | |
728 | bce54474 | Paolo Bonzini | class = object_get_class(OBJECT(dev)); |
729 | bce54474 | Paolo Bonzini | do {
|
730 | bce54474 | Paolo Bonzini | for (prop = DEVICE_CLASS(class)->props; prop && prop->name; prop++) {
|
731 | e769bdc2 | Peter Maydell | qdev_property_add_legacy(dev, prop, &err); |
732 | e769bdc2 | Peter Maydell | assert_no_error(err); |
733 | e769bdc2 | Peter Maydell | qdev_property_add_static(dev, prop, &err); |
734 | e769bdc2 | Peter Maydell | assert_no_error(err); |
735 | bce54474 | Paolo Bonzini | } |
736 | bce54474 | Paolo Bonzini | class = object_class_get_parent(class); |
737 | bce54474 | Paolo Bonzini | } while (class != object_class_by_name(TYPE_DEVICE));
|
738 | 4b3582b0 | Paolo Bonzini | qdev_prop_set_globals(dev); |
739 | 9674bfe4 | Anthony Liguori | |
740 | f968fc68 | Anthony Liguori | object_property_add_link(OBJECT(dev), "parent_bus", TYPE_BUS,
|
741 | e769bdc2 | Peter Maydell | (Object **)&dev->parent_bus, &err); |
742 | e769bdc2 | Peter Maydell | assert_no_error(err); |
743 | 9674bfe4 | Anthony Liguori | } |
744 | 9674bfe4 | Anthony Liguori | |
745 | 60adba37 | Anthony Liguori | /* Unlink device from bus and free the structure. */
|
746 | 60adba37 | Anthony Liguori | static void device_finalize(Object *obj) |
747 | 60adba37 | Anthony Liguori | { |
748 | 60adba37 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
749 | 06f7f2bb | Paolo Bonzini | if (dev->opts) {
|
750 | 06f7f2bb | Paolo Bonzini | qemu_opts_del(dev->opts); |
751 | 60adba37 | Anthony Liguori | } |
752 | 60adba37 | Anthony Liguori | } |
753 | 60adba37 | Anthony Liguori | |
754 | bce54474 | Paolo Bonzini | static void device_class_base_init(ObjectClass *class, void *data) |
755 | bce54474 | Paolo Bonzini | { |
756 | bce54474 | Paolo Bonzini | DeviceClass *klass = DEVICE_CLASS(class); |
757 | bce54474 | Paolo Bonzini | |
758 | bce54474 | Paolo Bonzini | /* We explicitly look up properties in the superclasses,
|
759 | bce54474 | Paolo Bonzini | * so do not propagate them to the subclasses.
|
760 | bce54474 | Paolo Bonzini | */
|
761 | bce54474 | Paolo Bonzini | klass->props = NULL;
|
762 | 60adba37 | Anthony Liguori | } |
763 | 60adba37 | Anthony Liguori | |
764 | 5d5b24d0 | Andreas Färber | static void device_unparent(Object *obj) |
765 | 667d22d1 | Paolo Bonzini | { |
766 | 667d22d1 | Paolo Bonzini | DeviceState *dev = DEVICE(obj); |
767 | 06f7f2bb | Paolo Bonzini | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
768 | 06f7f2bb | Paolo Bonzini | BusState *bus; |
769 | 0402a5d6 | Michael S. Tsirkin | QObject *event_data; |
770 | b1ee5829 | Anthony Liguori | bool have_realized = dev->realized;
|
771 | 667d22d1 | Paolo Bonzini | |
772 | 06f7f2bb | Paolo Bonzini | while (dev->num_child_bus) {
|
773 | 06f7f2bb | Paolo Bonzini | bus = QLIST_FIRST(&dev->child_bus); |
774 | 06f7f2bb | Paolo Bonzini | qbus_free(bus); |
775 | 06f7f2bb | Paolo Bonzini | } |
776 | 06f7f2bb | Paolo Bonzini | if (dev->realized) {
|
777 | 06f7f2bb | Paolo Bonzini | if (qdev_get_vmsd(dev)) {
|
778 | 06f7f2bb | Paolo Bonzini | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); |
779 | 06f7f2bb | Paolo Bonzini | } |
780 | 06f7f2bb | Paolo Bonzini | if (dc->exit) {
|
781 | 06f7f2bb | Paolo Bonzini | dc->exit(dev); |
782 | 06f7f2bb | Paolo Bonzini | } |
783 | 06f7f2bb | Paolo Bonzini | } |
784 | 06f7f2bb | Paolo Bonzini | if (dev->parent_bus) {
|
785 | 5d5b24d0 | Andreas Färber | bus_remove_child(dev->parent_bus, dev); |
786 | 62d7ba66 | Paolo Bonzini | object_unref(OBJECT(dev->parent_bus)); |
787 | 62d7ba66 | Paolo Bonzini | dev->parent_bus = NULL;
|
788 | 5d5b24d0 | Andreas Färber | } |
789 | 0402a5d6 | Michael S. Tsirkin | |
790 | b1ee5829 | Anthony Liguori | /* Only send event if the device had been completely realized */
|
791 | b1ee5829 | Anthony Liguori | if (have_realized) {
|
792 | b1ee5829 | Anthony Liguori | gchar *path = object_get_canonical_path(OBJECT(dev)); |
793 | b1ee5829 | Anthony Liguori | |
794 | b1ee5829 | Anthony Liguori | if (dev->id) {
|
795 | b1ee5829 | Anthony Liguori | event_data = qobject_from_jsonf("{ 'device': %s, 'path': %s }",
|
796 | b1ee5829 | Anthony Liguori | dev->id, path); |
797 | b1ee5829 | Anthony Liguori | } else {
|
798 | b1ee5829 | Anthony Liguori | event_data = qobject_from_jsonf("{ 'path': %s }", path);
|
799 | b1ee5829 | Anthony Liguori | } |
800 | b1ee5829 | Anthony Liguori | monitor_protocol_event(QEVENT_DEVICE_DELETED, event_data); |
801 | b1ee5829 | Anthony Liguori | qobject_decref(event_data); |
802 | b1ee5829 | Anthony Liguori | g_free(path); |
803 | 0402a5d6 | Michael S. Tsirkin | } |
804 | 667d22d1 | Paolo Bonzini | } |
805 | 667d22d1 | Paolo Bonzini | |
806 | 667d22d1 | Paolo Bonzini | static void device_class_init(ObjectClass *class, void *data) |
807 | 667d22d1 | Paolo Bonzini | { |
808 | 249d4172 | Andreas Färber | DeviceClass *dc = DEVICE_CLASS(class); |
809 | 249d4172 | Andreas Färber | |
810 | 5d5b24d0 | Andreas Färber | class->unparent = device_unparent; |
811 | 249d4172 | Andreas Färber | dc->realize = device_realize; |
812 | 667d22d1 | Paolo Bonzini | } |
813 | 667d22d1 | Paolo Bonzini | |
814 | 94afdadc | Anthony Liguori | void device_reset(DeviceState *dev)
|
815 | 94afdadc | Anthony Liguori | { |
816 | 94afdadc | Anthony Liguori | DeviceClass *klass = DEVICE_GET_CLASS(dev); |
817 | 94afdadc | Anthony Liguori | |
818 | 94afdadc | Anthony Liguori | if (klass->reset) {
|
819 | 94afdadc | Anthony Liguori | klass->reset(dev); |
820 | 94afdadc | Anthony Liguori | } |
821 | 94afdadc | Anthony Liguori | } |
822 | 94afdadc | Anthony Liguori | |
823 | f05f6b4a | Paolo Bonzini | Object *qdev_get_machine(void)
|
824 | f05f6b4a | Paolo Bonzini | { |
825 | f05f6b4a | Paolo Bonzini | static Object *dev;
|
826 | f05f6b4a | Paolo Bonzini | |
827 | f05f6b4a | Paolo Bonzini | if (dev == NULL) { |
828 | dfe47e70 | Andreas Färber | dev = container_get(object_get_root(), "/machine");
|
829 | f05f6b4a | Paolo Bonzini | } |
830 | f05f6b4a | Paolo Bonzini | |
831 | f05f6b4a | Paolo Bonzini | return dev;
|
832 | f05f6b4a | Paolo Bonzini | } |
833 | f05f6b4a | Paolo Bonzini | |
834 | 8c43a6f0 | Andreas Färber | static const TypeInfo device_type_info = { |
835 | 32fea402 | Anthony Liguori | .name = TYPE_DEVICE, |
836 | 32fea402 | Anthony Liguori | .parent = TYPE_OBJECT, |
837 | 32fea402 | Anthony Liguori | .instance_size = sizeof(DeviceState),
|
838 | 9674bfe4 | Anthony Liguori | .instance_init = device_initfn, |
839 | 60adba37 | Anthony Liguori | .instance_finalize = device_finalize, |
840 | bce54474 | Paolo Bonzini | .class_base_init = device_class_base_init, |
841 | 667d22d1 | Paolo Bonzini | .class_init = device_class_init, |
842 | 32fea402 | Anthony Liguori | .abstract = true,
|
843 | 32fea402 | Anthony Liguori | .class_size = sizeof(DeviceClass),
|
844 | 32fea402 | Anthony Liguori | }; |
845 | 32fea402 | Anthony Liguori | |
846 | ac7d1ba6 | Anthony Liguori | static void qbus_initfn(Object *obj) |
847 | ac7d1ba6 | Anthony Liguori | { |
848 | ac7d1ba6 | Anthony Liguori | BusState *bus = BUS(obj); |
849 | ac7d1ba6 | Anthony Liguori | |
850 | ac7d1ba6 | Anthony Liguori | QTAILQ_INIT(&bus->children); |
851 | ac7d1ba6 | Anthony Liguori | } |
852 | ac7d1ba6 | Anthony Liguori | |
853 | 6853d27a | Paolo Bonzini | static void bus_class_init(ObjectClass *class, void *data) |
854 | 6853d27a | Paolo Bonzini | { |
855 | 6853d27a | Paolo Bonzini | class->unparent = bus_unparent; |
856 | 6853d27a | Paolo Bonzini | } |
857 | 6853d27a | Paolo Bonzini | |
858 | ac7d1ba6 | Anthony Liguori | static void qbus_finalize(Object *obj) |
859 | ac7d1ba6 | Anthony Liguori | { |
860 | ac7d1ba6 | Anthony Liguori | BusState *bus = BUS(obj); |
861 | ac7d1ba6 | Anthony Liguori | |
862 | ac7d1ba6 | Anthony Liguori | g_free((char *)bus->name);
|
863 | ac7d1ba6 | Anthony Liguori | } |
864 | ac7d1ba6 | Anthony Liguori | |
865 | 0d936928 | Anthony Liguori | static const TypeInfo bus_info = { |
866 | 0d936928 | Anthony Liguori | .name = TYPE_BUS, |
867 | 0d936928 | Anthony Liguori | .parent = TYPE_OBJECT, |
868 | 0d936928 | Anthony Liguori | .instance_size = sizeof(BusState),
|
869 | 0d936928 | Anthony Liguori | .abstract = true,
|
870 | 0d936928 | Anthony Liguori | .class_size = sizeof(BusClass),
|
871 | ac7d1ba6 | Anthony Liguori | .instance_init = qbus_initfn, |
872 | ac7d1ba6 | Anthony Liguori | .instance_finalize = qbus_finalize, |
873 | 6853d27a | Paolo Bonzini | .class_init = bus_class_init, |
874 | 0d936928 | Anthony Liguori | }; |
875 | 0d936928 | Anthony Liguori | |
876 | 83f7d43a | Andreas Färber | static void qdev_register_types(void) |
877 | 32fea402 | Anthony Liguori | { |
878 | 0d936928 | Anthony Liguori | type_register_static(&bus_info); |
879 | 32fea402 | Anthony Liguori | type_register_static(&device_type_info); |
880 | 32fea402 | Anthony Liguori | } |
881 | 32fea402 | Anthony Liguori | |
882 | 83f7d43a | Andreas Färber | type_init(qdev_register_types) |