root / hw / qdev.c @ f05f6b4a
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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 | 9d07d757 | Paul Brook | #include "net.h" |
29 | aae9460e | Paul Brook | #include "qdev.h" |
30 | aae9460e | Paul Brook | #include "sysemu.h" |
31 | aae9460e | Paul Brook | |
32 | ee46d8a5 | Anthony Liguori | int qdev_hotplug = 0; |
33 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_added = false; |
34 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_removed = false; |
35 | 3418bd25 | Gerd Hoffmann | |
36 | cdaed7c7 | Gerd Hoffmann | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */
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37 | b9aaf7f8 | Blue Swirl | static BusState *main_system_bus;
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38 | 2da8bb92 | Isaku Yamahata | static void main_system_bus_create(void); |
39 | 4d6ae674 | Paul Brook | |
40 | aae9460e | Paul Brook | /* Register a new device type. */
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41 | 4be9f0d1 | Anthony Liguori | const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
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42 | 4be9f0d1 | Anthony Liguori | { |
43 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
44 | 6e008585 | Anthony Liguori | return dc->vmsd;
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45 | 4be9f0d1 | Anthony Liguori | } |
46 | 4be9f0d1 | Anthony Liguori | |
47 | 4be9f0d1 | Anthony Liguori | BusInfo *qdev_get_bus_info(DeviceState *dev) |
48 | 4be9f0d1 | Anthony Liguori | { |
49 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
50 | 6e008585 | Anthony Liguori | return dc->bus_info;
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51 | 4be9f0d1 | Anthony Liguori | } |
52 | 4be9f0d1 | Anthony Liguori | |
53 | 4be9f0d1 | Anthony Liguori | Property *qdev_get_props(DeviceState *dev) |
54 | 4be9f0d1 | Anthony Liguori | { |
55 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
56 | 6e008585 | Anthony Liguori | return dc->props;
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57 | 4be9f0d1 | Anthony Liguori | } |
58 | 4be9f0d1 | Anthony Liguori | |
59 | 4be9f0d1 | Anthony Liguori | const char *qdev_fw_name(DeviceState *dev) |
60 | 4be9f0d1 | Anthony Liguori | { |
61 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
62 | 4be9f0d1 | Anthony Liguori | |
63 | 6e008585 | Anthony Liguori | if (dc->fw_name) {
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64 | 6e008585 | Anthony Liguori | return dc->fw_name;
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65 | 4be9f0d1 | Anthony Liguori | } |
66 | 4be9f0d1 | Anthony Liguori | |
67 | 4be9f0d1 | Anthony Liguori | return object_get_typename(OBJECT(dev));
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68 | 4be9f0d1 | Anthony Liguori | } |
69 | 4be9f0d1 | Anthony Liguori | |
70 | a369da5f | Blue Swirl | bool qdev_exists(const char *name) |
71 | a369da5f | Blue Swirl | { |
72 | 212ad111 | Anthony Liguori | return !!object_class_by_name(name);
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73 | a369da5f | Blue Swirl | } |
74 | 40021f08 | Anthony Liguori | |
75 | ca2cc788 | Paolo Bonzini | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
76 | ca2cc788 | Paolo Bonzini | Error **errp); |
77 | ca2cc788 | Paolo Bonzini | |
78 | 9fbe6127 | Anthony Liguori | void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
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79 | 0c17542d | Markus Armbruster | { |
80 | a5296ca9 | Anthony Liguori | Property *prop; |
81 | 0c17542d | Markus Armbruster | |
82 | 0c17542d | Markus Armbruster | if (qdev_hotplug) {
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83 | 0c17542d | Markus Armbruster | assert(bus->allow_hotplug); |
84 | 0c17542d | Markus Armbruster | } |
85 | a5296ca9 | Anthony Liguori | |
86 | 9fbe6127 | Anthony Liguori | dev->parent_bus = bus; |
87 | 9674bfe4 | Anthony Liguori | QTAILQ_INSERT_HEAD(&bus->children, dev, sibling); |
88 | a5296ca9 | Anthony Liguori | |
89 | 6e008585 | Anthony Liguori | for (prop = qdev_get_bus_info(dev)->props; prop && prop->name; prop++) {
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90 | a5296ca9 | Anthony Liguori | qdev_property_add_legacy(dev, prop, NULL);
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91 | ca2cc788 | Paolo Bonzini | qdev_property_add_static(dev, prop, NULL);
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92 | a5296ca9 | Anthony Liguori | } |
93 | 4f2d3d70 | Paolo Bonzini | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
94 | 0c17542d | Markus Armbruster | } |
95 | 0c17542d | Markus Armbruster | |
96 | aae9460e | Paul Brook | /* Create a new device. This only initializes the device state structure
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97 | aae9460e | Paul Brook | and allows properties to be set. qdev_init should be called to
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98 | aae9460e | Paul Brook | initialize the actual device emulation. */
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99 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name) |
100 | aae9460e | Paul Brook | { |
101 | 0bcdeda7 | Blue Swirl | DeviceState *dev; |
102 | 0bcdeda7 | Blue Swirl | |
103 | 0bcdeda7 | Blue Swirl | dev = qdev_try_create(bus, name); |
104 | 0bcdeda7 | Blue Swirl | if (!dev) {
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105 | e92714c7 | Peter Maydell | if (bus) {
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106 | e92714c7 | Peter Maydell | hw_error("Unknown device '%s' for bus '%s'\n", name,
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107 | e92714c7 | Peter Maydell | bus->info->name); |
108 | e92714c7 | Peter Maydell | } else {
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109 | e92714c7 | Peter Maydell | hw_error("Unknown device '%s' for default sysbus\n", name);
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110 | e92714c7 | Peter Maydell | } |
111 | 0bcdeda7 | Blue Swirl | } |
112 | 0bcdeda7 | Blue Swirl | |
113 | 0bcdeda7 | Blue Swirl | return dev;
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114 | 0bcdeda7 | Blue Swirl | } |
115 | 0bcdeda7 | Blue Swirl | |
116 | da57febf | Paolo Bonzini | DeviceState *qdev_try_create(BusState *bus, const char *type) |
117 | 0bcdeda7 | Blue Swirl | { |
118 | 9fbe6127 | Anthony Liguori | DeviceState *dev; |
119 | 9fbe6127 | Anthony Liguori | |
120 | da57febf | Paolo Bonzini | if (object_class_by_name(type) == NULL) { |
121 | 4ed658ca | Andreas Färber | return NULL; |
122 | 4ed658ca | Andreas Färber | } |
123 | da57febf | Paolo Bonzini | dev = DEVICE(object_new(type)); |
124 | 9fbe6127 | Anthony Liguori | if (!dev) {
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125 | 9fbe6127 | Anthony Liguori | return NULL; |
126 | 9fbe6127 | Anthony Liguori | } |
127 | 9fbe6127 | Anthony Liguori | |
128 | 10c4c98a | Gerd Hoffmann | if (!bus) {
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129 | 68694897 | Stefan Weil | bus = sysbus_get_default(); |
130 | 10c4c98a | Gerd Hoffmann | } |
131 | 10c4c98a | Gerd Hoffmann | |
132 | 9fbe6127 | Anthony Liguori | qdev_set_parent_bus(dev, bus); |
133 | 9fbe6127 | Anthony Liguori | qdev_prop_set_globals(dev); |
134 | 9fbe6127 | Anthony Liguori | |
135 | 9fbe6127 | Anthony Liguori | return dev;
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136 | aae9460e | Paul Brook | } |
137 | aae9460e | Paul Brook | |
138 | aae9460e | Paul Brook | /* Initialize a device. Device properties should be set before calling
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139 | aae9460e | Paul Brook | this function. IRQs and MMIO regions should be connected/mapped after
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140 | 18cfeb52 | Markus Armbruster | calling this function.
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141 | 18cfeb52 | Markus Armbruster | On failure, destroy the device and return negative value.
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142 | 18cfeb52 | Markus Armbruster | Return 0 on success. */
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143 | 81a322d4 | Gerd Hoffmann | int qdev_init(DeviceState *dev)
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144 | aae9460e | Paul Brook | { |
145 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
146 | 959f733a | Gerd Hoffmann | int rc;
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147 | 959f733a | Gerd Hoffmann | |
148 | 131ec1bd | Gerd Hoffmann | assert(dev->state == DEV_STATE_CREATED); |
149 | 6e008585 | Anthony Liguori | |
150 | d307af79 | Anthony Liguori | rc = dc->init(dev); |
151 | 18cfeb52 | Markus Armbruster | if (rc < 0) { |
152 | 18cfeb52 | Markus Armbruster | qdev_free(dev); |
153 | 959f733a | Gerd Hoffmann | return rc;
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154 | 18cfeb52 | Markus Armbruster | } |
155 | da57febf | Paolo Bonzini | |
156 | da57febf | Paolo Bonzini | if (!OBJECT(dev)->parent) {
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157 | da57febf | Paolo Bonzini | static int unattached_count = 0; |
158 | da57febf | Paolo Bonzini | gchar *name = g_strdup_printf("device[%d]", unattached_count++);
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159 | da57febf | Paolo Bonzini | |
160 | f05f6b4a | Paolo Bonzini | object_property_add_child(container_get("/machine/unattached"), name,
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161 | da57febf | Paolo Bonzini | OBJECT(dev), NULL);
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162 | da57febf | Paolo Bonzini | g_free(name); |
163 | da57febf | Paolo Bonzini | } |
164 | da57febf | Paolo Bonzini | |
165 | 6e008585 | Anthony Liguori | if (qdev_get_vmsd(dev)) {
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166 | 6e008585 | Anthony Liguori | vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
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167 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias, |
168 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version); |
169 | 4d2ffa08 | Jan Kiszka | } |
170 | 131ec1bd | Gerd Hoffmann | dev->state = DEV_STATE_INITIALIZED; |
171 | 94afdadc | Anthony Liguori | if (dev->hotplugged) {
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172 | 94afdadc | Anthony Liguori | device_reset(dev); |
173 | 5ab28c83 | Jan Kiszka | } |
174 | 959f733a | Gerd Hoffmann | return 0; |
175 | 02e2da45 | Paul Brook | } |
176 | 02e2da45 | Paul Brook | |
177 | 4d2ffa08 | Jan Kiszka | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
178 | 4d2ffa08 | Jan Kiszka | int required_for_version)
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179 | 4d2ffa08 | Jan Kiszka | { |
180 | 4d2ffa08 | Jan Kiszka | assert(dev->state == DEV_STATE_CREATED); |
181 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = alias_id; |
182 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version = required_for_version; |
183 | 4d2ffa08 | Jan Kiszka | } |
184 | 4d2ffa08 | Jan Kiszka | |
185 | 3418bd25 | Gerd Hoffmann | int qdev_unplug(DeviceState *dev)
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186 | 3418bd25 | Gerd Hoffmann | { |
187 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
188 | 6e008585 | Anthony Liguori | |
189 | 3418bd25 | Gerd Hoffmann | if (!dev->parent_bus->allow_hotplug) {
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190 | cc601cb7 | Markus Armbruster | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
191 | 3418bd25 | Gerd Hoffmann | return -1; |
192 | 3418bd25 | Gerd Hoffmann | } |
193 | 6e008585 | Anthony Liguori | assert(dc->unplug != NULL);
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194 | 593831de | Amit Shah | |
195 | 0ac8ef71 | Alex Williamson | qdev_hot_removed = true;
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196 | 0ac8ef71 | Alex Williamson | |
197 | 6e008585 | Anthony Liguori | return dc->unplug(dev);
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198 | 3418bd25 | Gerd Hoffmann | } |
199 | 3418bd25 | Gerd Hoffmann | |
200 | ec990eb6 | Anthony Liguori | static int qdev_reset_one(DeviceState *dev, void *opaque) |
201 | ec990eb6 | Anthony Liguori | { |
202 | 94afdadc | Anthony Liguori | device_reset(dev); |
203 | ec990eb6 | Anthony Liguori | |
204 | ec990eb6 | Anthony Liguori | return 0; |
205 | ec990eb6 | Anthony Liguori | } |
206 | ec990eb6 | Anthony Liguori | |
207 | ec990eb6 | Anthony Liguori | BusState *sysbus_get_default(void)
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208 | ec990eb6 | Anthony Liguori | { |
209 | 68694897 | Stefan Weil | if (!main_system_bus) {
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210 | 2da8bb92 | Isaku Yamahata | main_system_bus_create(); |
211 | 68694897 | Stefan Weil | } |
212 | ec990eb6 | Anthony Liguori | return main_system_bus;
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213 | ec990eb6 | Anthony Liguori | } |
214 | ec990eb6 | Anthony Liguori | |
215 | b4694b7c | Isaku Yamahata | static int qbus_reset_one(BusState *bus, void *opaque) |
216 | b4694b7c | Isaku Yamahata | { |
217 | b4694b7c | Isaku Yamahata | if (bus->info->reset) {
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218 | b4694b7c | Isaku Yamahata | return bus->info->reset(bus);
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219 | b4694b7c | Isaku Yamahata | } |
220 | b4694b7c | Isaku Yamahata | return 0; |
221 | b4694b7c | Isaku Yamahata | } |
222 | b4694b7c | Isaku Yamahata | |
223 | 5af0a04b | Isaku Yamahata | void qdev_reset_all(DeviceState *dev)
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224 | 5af0a04b | Isaku Yamahata | { |
225 | 5af0a04b | Isaku Yamahata | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL);
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226 | 5af0a04b | Isaku Yamahata | } |
227 | 5af0a04b | Isaku Yamahata | |
228 | 80376c3f | Isaku Yamahata | void qbus_reset_all_fn(void *opaque) |
229 | 80376c3f | Isaku Yamahata | { |
230 | 80376c3f | Isaku Yamahata | BusState *bus = opaque; |
231 | f530cce3 | Michael S. Tsirkin | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
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232 | 80376c3f | Isaku Yamahata | } |
233 | 80376c3f | Isaku Yamahata | |
234 | 3418bd25 | Gerd Hoffmann | /* can be used as ->unplug() callback for the simple cases */
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235 | 3418bd25 | Gerd Hoffmann | int qdev_simple_unplug_cb(DeviceState *dev)
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236 | 3418bd25 | Gerd Hoffmann | { |
237 | 3418bd25 | Gerd Hoffmann | /* just zap it */
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238 | 57c9fafe | Anthony Liguori | object_unparent(OBJECT(dev)); |
239 | 3418bd25 | Gerd Hoffmann | qdev_free(dev); |
240 | 3418bd25 | Gerd Hoffmann | return 0; |
241 | 3418bd25 | Gerd Hoffmann | } |
242 | 3418bd25 | Gerd Hoffmann | |
243 | 3b29a101 | Michael Tokarev | |
244 | 3b29a101 | Michael Tokarev | /* Like qdev_init(), but terminate program via error_report() instead of
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245 | e23a1b33 | Markus Armbruster | returning an error value. This is okay during machine creation.
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246 | e23a1b33 | Markus Armbruster | Don't use for hotplug, because there callers need to recover from
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247 | e23a1b33 | Markus Armbruster | failure. Exception: if you know the device's init() callback can't
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248 | e23a1b33 | Markus Armbruster | fail, then qdev_init_nofail() can't fail either, and is therefore
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249 | e23a1b33 | Markus Armbruster | usable even then. But relying on the device implementation that
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250 | e23a1b33 | Markus Armbruster | way is somewhat unclean, and best avoided. */
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251 | e23a1b33 | Markus Armbruster | void qdev_init_nofail(DeviceState *dev)
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252 | e23a1b33 | Markus Armbruster | { |
253 | bd6c9a61 | Markus Armbruster | if (qdev_init(dev) < 0) { |
254 | 6e008585 | Anthony Liguori | error_report("Initialization of device %s failed",
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255 | 6e008585 | Anthony Liguori | object_get_typename(OBJECT(dev))); |
256 | bd6c9a61 | Markus Armbruster | exit(1);
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257 | bd6c9a61 | Markus Armbruster | } |
258 | e23a1b33 | Markus Armbruster | } |
259 | e23a1b33 | Markus Armbruster | |
260 | 02e2da45 | Paul Brook | /* Unlink device from bus and free the structure. */
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261 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev)
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262 | 02e2da45 | Paul Brook | { |
263 | 32fea402 | Anthony Liguori | object_delete(OBJECT(dev)); |
264 | aae9460e | Paul Brook | } |
265 | aae9460e | Paul Brook | |
266 | 3418bd25 | Gerd Hoffmann | void qdev_machine_creation_done(void) |
267 | 3418bd25 | Gerd Hoffmann | { |
268 | 3418bd25 | Gerd Hoffmann | /*
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269 | 3418bd25 | Gerd Hoffmann | * ok, initial machine setup is done, starting from now we can
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270 | 3418bd25 | Gerd Hoffmann | * only create hotpluggable devices
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271 | 3418bd25 | Gerd Hoffmann | */
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272 | 3418bd25 | Gerd Hoffmann | qdev_hotplug = 1;
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273 | 3418bd25 | Gerd Hoffmann | } |
274 | 3418bd25 | Gerd Hoffmann | |
275 | 0ac8ef71 | Alex Williamson | bool qdev_machine_modified(void) |
276 | 0ac8ef71 | Alex Williamson | { |
277 | 0ac8ef71 | Alex Williamson | return qdev_hot_added || qdev_hot_removed;
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278 | 0ac8ef71 | Alex Williamson | } |
279 | 0ac8ef71 | Alex Williamson | |
280 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev) |
281 | aae9460e | Paul Brook | { |
282 | 02e2da45 | Paul Brook | return dev->parent_bus;
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283 | aae9460e | Paul Brook | } |
284 | aae9460e | Paul Brook | |
285 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
286 | aae9460e | Paul Brook | { |
287 | aae9460e | Paul Brook | assert(dev->num_gpio_in == 0);
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288 | aae9460e | Paul Brook | dev->num_gpio_in = n; |
289 | aae9460e | Paul Brook | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); |
290 | aae9460e | Paul Brook | } |
291 | aae9460e | Paul Brook | |
292 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
293 | aae9460e | Paul Brook | { |
294 | aae9460e | Paul Brook | assert(dev->num_gpio_out == 0);
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295 | aae9460e | Paul Brook | dev->num_gpio_out = n; |
296 | aae9460e | Paul Brook | dev->gpio_out = pins; |
297 | aae9460e | Paul Brook | } |
298 | aae9460e | Paul Brook | |
299 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
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300 | aae9460e | Paul Brook | { |
301 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_in);
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302 | aae9460e | Paul Brook | return dev->gpio_in[n];
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303 | aae9460e | Paul Brook | } |
304 | aae9460e | Paul Brook | |
305 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
306 | aae9460e | Paul Brook | { |
307 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_out);
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308 | aae9460e | Paul Brook | dev->gpio_out[n] = pin; |
309 | aae9460e | Paul Brook | } |
310 | aae9460e | Paul Brook | |
311 | ed16ab5a | Gerd Hoffmann | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd)
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312 | ed16ab5a | Gerd Hoffmann | { |
313 | 6eed1856 | Jan Kiszka | qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a);
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314 | ed16ab5a | Gerd Hoffmann | if (nd->vlan)
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315 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_vlan(dev, "vlan", nd->vlan);
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316 | ed16ab5a | Gerd Hoffmann | if (nd->netdev)
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317 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_netdev(dev, "netdev", nd->netdev);
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318 | 75422b0d | Amit Shah | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
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319 | 97b15621 | Gerd Hoffmann | qdev_prop_exists(dev, "vectors")) {
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320 | 97b15621 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "vectors", nd->nvectors);
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321 | 97b15621 | Gerd Hoffmann | } |
322 | 48e2faf2 | Peter Maydell | nd->instantiated = 1;
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323 | ed16ab5a | Gerd Hoffmann | } |
324 | ed16ab5a | Gerd Hoffmann | |
325 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
326 | 4d6ae674 | Paul Brook | { |
327 | 02e2da45 | Paul Brook | BusState *bus; |
328 | 4d6ae674 | Paul Brook | |
329 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
330 | 4d6ae674 | Paul Brook | if (strcmp(name, bus->name) == 0) { |
331 | 02e2da45 | Paul Brook | return bus;
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332 | 4d6ae674 | Paul Brook | } |
333 | 4d6ae674 | Paul Brook | } |
334 | 4d6ae674 | Paul Brook | return NULL; |
335 | 4d6ae674 | Paul Brook | } |
336 | 4d6ae674 | Paul Brook | |
337 | 81699d8a | Anthony Liguori | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
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338 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
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339 | 81699d8a | Anthony Liguori | { |
340 | 81699d8a | Anthony Liguori | DeviceState *dev; |
341 | 81699d8a | Anthony Liguori | int err;
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342 | 81699d8a | Anthony Liguori | |
343 | 81699d8a | Anthony Liguori | if (busfn) {
|
344 | 81699d8a | Anthony Liguori | err = busfn(bus, opaque); |
345 | 81699d8a | Anthony Liguori | if (err) {
|
346 | 81699d8a | Anthony Liguori | return err;
|
347 | 81699d8a | Anthony Liguori | } |
348 | 81699d8a | Anthony Liguori | } |
349 | 81699d8a | Anthony Liguori | |
350 | d8bb00d6 | Paolo Bonzini | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
351 | 81699d8a | Anthony Liguori | err = qdev_walk_children(dev, devfn, busfn, opaque); |
352 | 81699d8a | Anthony Liguori | if (err < 0) { |
353 | 81699d8a | Anthony Liguori | return err;
|
354 | 81699d8a | Anthony Liguori | } |
355 | 81699d8a | Anthony Liguori | } |
356 | 81699d8a | Anthony Liguori | |
357 | 81699d8a | Anthony Liguori | return 0; |
358 | 81699d8a | Anthony Liguori | } |
359 | 81699d8a | Anthony Liguori | |
360 | 81699d8a | Anthony Liguori | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
|
361 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
362 | 81699d8a | Anthony Liguori | { |
363 | 81699d8a | Anthony Liguori | BusState *bus; |
364 | 81699d8a | Anthony Liguori | int err;
|
365 | 81699d8a | Anthony Liguori | |
366 | 81699d8a | Anthony Liguori | if (devfn) {
|
367 | 81699d8a | Anthony Liguori | err = devfn(dev, opaque); |
368 | 81699d8a | Anthony Liguori | if (err) {
|
369 | 81699d8a | Anthony Liguori | return err;
|
370 | 81699d8a | Anthony Liguori | } |
371 | 81699d8a | Anthony Liguori | } |
372 | 81699d8a | Anthony Liguori | |
373 | 81699d8a | Anthony Liguori | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
374 | 81699d8a | Anthony Liguori | err = qbus_walk_children(bus, devfn, busfn, opaque); |
375 | 81699d8a | Anthony Liguori | if (err < 0) { |
376 | 81699d8a | Anthony Liguori | return err;
|
377 | 81699d8a | Anthony Liguori | } |
378 | 81699d8a | Anthony Liguori | } |
379 | 81699d8a | Anthony Liguori | |
380 | 81699d8a | Anthony Liguori | return 0; |
381 | 81699d8a | Anthony Liguori | } |
382 | 81699d8a | Anthony Liguori | |
383 | a2ee6b4f | Isaku Yamahata | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
384 | 3418bd25 | Gerd Hoffmann | { |
385 | 3418bd25 | Gerd Hoffmann | DeviceState *dev, *ret; |
386 | 3418bd25 | Gerd Hoffmann | BusState *child; |
387 | 3418bd25 | Gerd Hoffmann | |
388 | d8bb00d6 | Paolo Bonzini | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
389 | 3418bd25 | Gerd Hoffmann | if (dev->id && strcmp(dev->id, id) == 0) |
390 | 3418bd25 | Gerd Hoffmann | return dev;
|
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 | cd739fb6 | Gerd Hoffmann | void qbus_create_inplace(BusState *bus, BusInfo *info,
|
402 | cd739fb6 | Gerd Hoffmann | DeviceState *parent, const char *name) |
403 | 02e2da45 | Paul Brook | { |
404 | d271de9f | Gerd Hoffmann | char *buf;
|
405 | d271de9f | Gerd Hoffmann | int i,len;
|
406 | 02e2da45 | Paul Brook | |
407 | 10c4c98a | Gerd Hoffmann | bus->info = info; |
408 | 02e2da45 | Paul Brook | bus->parent = parent; |
409 | d271de9f | Gerd Hoffmann | |
410 | d271de9f | Gerd Hoffmann | if (name) {
|
411 | d271de9f | Gerd Hoffmann | /* use supplied name */
|
412 | 7267c094 | Anthony Liguori | bus->name = g_strdup(name); |
413 | d271de9f | Gerd Hoffmann | } else if (parent && parent->id) { |
414 | d271de9f | Gerd Hoffmann | /* parent device has id -> use it for bus name */
|
415 | d271de9f | Gerd Hoffmann | len = strlen(parent->id) + 16;
|
416 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
417 | d271de9f | Gerd Hoffmann | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus);
|
418 | d271de9f | Gerd Hoffmann | bus->name = buf; |
419 | d271de9f | Gerd Hoffmann | } else {
|
420 | d271de9f | Gerd Hoffmann | /* no id -> use lowercase bus type for bus name */
|
421 | d271de9f | Gerd Hoffmann | len = strlen(info->name) + 16;
|
422 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
423 | d271de9f | Gerd Hoffmann | len = snprintf(buf, len, "%s.%d", info->name,
|
424 | d271de9f | Gerd Hoffmann | parent ? parent->num_child_bus : 0);
|
425 | d271de9f | Gerd Hoffmann | for (i = 0; i < len; i++) |
426 | bb87ece5 | Christoph Egger | buf[i] = qemu_tolower(buf[i]); |
427 | d271de9f | Gerd Hoffmann | bus->name = buf; |
428 | d271de9f | Gerd Hoffmann | } |
429 | d271de9f | Gerd Hoffmann | |
430 | d8bb00d6 | Paolo Bonzini | QTAILQ_INIT(&bus->children); |
431 | 02e2da45 | Paul Brook | if (parent) {
|
432 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
433 | d271de9f | Gerd Hoffmann | parent->num_child_bus++; |
434 | 80376c3f | Isaku Yamahata | } else if (bus != main_system_bus) { |
435 | 80376c3f | Isaku Yamahata | /* TODO: once all bus devices are qdevified,
|
436 | 80376c3f | Isaku Yamahata | only reset handler for main_system_bus should be registered here. */
|
437 | 80376c3f | Isaku Yamahata | qemu_register_reset(qbus_reset_all_fn, bus); |
438 | 02e2da45 | Paul Brook | } |
439 | cd739fb6 | Gerd Hoffmann | } |
440 | cd739fb6 | Gerd Hoffmann | |
441 | cd739fb6 | Gerd Hoffmann | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) |
442 | cd739fb6 | Gerd Hoffmann | { |
443 | cd739fb6 | Gerd Hoffmann | BusState *bus; |
444 | cd739fb6 | Gerd Hoffmann | |
445 | 7267c094 | Anthony Liguori | bus = g_malloc0(info->size); |
446 | cd739fb6 | Gerd Hoffmann | bus->qdev_allocated = 1;
|
447 | cd739fb6 | Gerd Hoffmann | qbus_create_inplace(bus, info, parent, name); |
448 | 02e2da45 | Paul Brook | return bus;
|
449 | 02e2da45 | Paul Brook | } |
450 | cae4956e | Gerd Hoffmann | |
451 | 2da8bb92 | Isaku Yamahata | static void main_system_bus_create(void) |
452 | 2da8bb92 | Isaku Yamahata | { |
453 | 2da8bb92 | Isaku Yamahata | /* assign main_system_bus before qbus_create_inplace()
|
454 | 2da8bb92 | Isaku Yamahata | * in order to make "if (bus != main_system_bus)" work */
|
455 | 7267c094 | Anthony Liguori | main_system_bus = g_malloc0(system_bus_info.size); |
456 | 2da8bb92 | Isaku Yamahata | main_system_bus->qdev_allocated = 1;
|
457 | 2da8bb92 | Isaku Yamahata | qbus_create_inplace(main_system_bus, &system_bus_info, NULL,
|
458 | 2da8bb92 | Isaku Yamahata | "main-system-bus");
|
459 | 2da8bb92 | Isaku Yamahata | } |
460 | 2da8bb92 | Isaku Yamahata | |
461 | 131ec1bd | Gerd Hoffmann | void qbus_free(BusState *bus)
|
462 | 131ec1bd | Gerd Hoffmann | { |
463 | 131ec1bd | Gerd Hoffmann | DeviceState *dev; |
464 | 131ec1bd | Gerd Hoffmann | |
465 | d8bb00d6 | Paolo Bonzini | while ((dev = QTAILQ_FIRST(&bus->children)) != NULL) { |
466 | 131ec1bd | Gerd Hoffmann | qdev_free(dev); |
467 | 131ec1bd | Gerd Hoffmann | } |
468 | 131ec1bd | Gerd Hoffmann | if (bus->parent) {
|
469 | 131ec1bd | Gerd Hoffmann | QLIST_REMOVE(bus, sibling); |
470 | 131ec1bd | Gerd Hoffmann | bus->parent->num_child_bus--; |
471 | 80376c3f | Isaku Yamahata | } else {
|
472 | 80376c3f | Isaku Yamahata | assert(bus != main_system_bus); /* main_system_bus is never freed */
|
473 | 80376c3f | Isaku Yamahata | qemu_unregister_reset(qbus_reset_all_fn, bus); |
474 | 131ec1bd | Gerd Hoffmann | } |
475 | 7267c094 | Anthony Liguori | g_free((void*)bus->name);
|
476 | 131ec1bd | Gerd Hoffmann | if (bus->qdev_allocated) {
|
477 | 7267c094 | Anthony Liguori | g_free(bus); |
478 | 131ec1bd | Gerd Hoffmann | } |
479 | 131ec1bd | Gerd Hoffmann | } |
480 | 131ec1bd | Gerd Hoffmann | |
481 | 1ca4d09a | Gleb Natapov | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
482 | 1ca4d09a | Gleb Natapov | { |
483 | 1ca4d09a | Gleb Natapov | int l = 0; |
484 | 1ca4d09a | Gleb Natapov | |
485 | 1ca4d09a | Gleb Natapov | if (dev && dev->parent_bus) {
|
486 | 1ca4d09a | Gleb Natapov | char *d;
|
487 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); |
488 | 1ca4d09a | Gleb Natapov | if (dev->parent_bus->info->get_fw_dev_path) {
|
489 | 1ca4d09a | Gleb Natapov | d = dev->parent_bus->info->get_fw_dev_path(dev); |
490 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l, size - l, "%s", d);
|
491 | 7267c094 | Anthony Liguori | g_free(d); |
492 | 1ca4d09a | Gleb Natapov | } else {
|
493 | f79f2bfc | Anthony Liguori | l += snprintf(p + l, size - l, "%s", object_get_typename(OBJECT(dev)));
|
494 | 1ca4d09a | Gleb Natapov | } |
495 | 1ca4d09a | Gleb Natapov | } |
496 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l , size - l, "/");
|
497 | 1ca4d09a | Gleb Natapov | |
498 | 1ca4d09a | Gleb Natapov | return l;
|
499 | 1ca4d09a | Gleb Natapov | } |
500 | 1ca4d09a | Gleb Natapov | |
501 | 1ca4d09a | Gleb Natapov | char* qdev_get_fw_dev_path(DeviceState *dev)
|
502 | 1ca4d09a | Gleb Natapov | { |
503 | 1ca4d09a | Gleb Natapov | char path[128]; |
504 | 1ca4d09a | Gleb Natapov | int l;
|
505 | 1ca4d09a | Gleb Natapov | |
506 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev, path, 128);
|
507 | 1ca4d09a | Gleb Natapov | |
508 | 1ca4d09a | Gleb Natapov | path[l-1] = '\0'; |
509 | 1ca4d09a | Gleb Natapov | |
510 | 1ca4d09a | Gleb Natapov | return strdup(path);
|
511 | 1ca4d09a | Gleb Natapov | } |
512 | 85ed303b | Anthony Liguori | |
513 | 57c9fafe | Anthony Liguori | static char *qdev_get_type(Object *obj, Error **errp) |
514 | 85ed303b | Anthony Liguori | { |
515 | 57c9fafe | Anthony Liguori | return g_strdup(object_get_typename(obj));
|
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 | 68ee3569 | Paolo Bonzini | if (!prop->info->print && !prop->info->parse) {
|
575 | 68ee3569 | Paolo Bonzini | return;
|
576 | 68ee3569 | Paolo Bonzini | } |
577 | ca2cc788 | Paolo Bonzini | name = g_strdup_printf("legacy-%s", prop->name);
|
578 | cafe5bdb | Paolo Bonzini | type = g_strdup_printf("legacy<%s>",
|
579 | cafe5bdb | Paolo Bonzini | prop->info->legacy_name ?: prop->info->name); |
580 | a5296ca9 | Anthony Liguori | |
581 | 57c9fafe | Anthony Liguori | object_property_add(OBJECT(dev), name, type, |
582 | 68ee3569 | Paolo Bonzini | prop->info->print ? qdev_get_legacy_property : prop->info->get, |
583 | 68ee3569 | Paolo Bonzini | prop->info->parse ? qdev_set_legacy_property : prop->info->set, |
584 | 57c9fafe | Anthony Liguori | NULL,
|
585 | 57c9fafe | Anthony Liguori | prop, errp); |
586 | a5296ca9 | Anthony Liguori | |
587 | a5296ca9 | Anthony Liguori | g_free(type); |
588 | ca2cc788 | Paolo Bonzini | g_free(name); |
589 | ca2cc788 | Paolo Bonzini | } |
590 | ca2cc788 | Paolo Bonzini | |
591 | ca2cc788 | Paolo Bonzini | /**
|
592 | ca2cc788 | Paolo Bonzini | * @qdev_property_add_static - add a @Property to a device.
|
593 | ca2cc788 | Paolo Bonzini | *
|
594 | ca2cc788 | Paolo Bonzini | * Static properties access data in a struct. The actual type of the
|
595 | ca2cc788 | Paolo Bonzini | * property and the field depends on the property type.
|
596 | ca2cc788 | Paolo Bonzini | */
|
597 | ca2cc788 | Paolo Bonzini | void qdev_property_add_static(DeviceState *dev, Property *prop,
|
598 | ca2cc788 | Paolo Bonzini | Error **errp) |
599 | ca2cc788 | Paolo Bonzini | { |
600 | d822979b | Paolo Bonzini | /*
|
601 | d822979b | Paolo Bonzini | * TODO qdev_prop_ptr does not have getters or setters. It must
|
602 | d822979b | Paolo Bonzini | * go now that it can be replaced with links. The test should be
|
603 | d822979b | Paolo Bonzini | * removed along with it: all static properties are read/write.
|
604 | d822979b | Paolo Bonzini | */
|
605 | d822979b | Paolo Bonzini | if (!prop->info->get && !prop->info->set) {
|
606 | d822979b | Paolo Bonzini | return;
|
607 | d822979b | Paolo Bonzini | } |
608 | d822979b | Paolo Bonzini | |
609 | 57c9fafe | Anthony Liguori | object_property_add(OBJECT(dev), prop->name, prop->info->name, |
610 | 57c9fafe | Anthony Liguori | prop->info->get, prop->info->set, |
611 | dd0ba250 | Paolo Bonzini | prop->info->release, |
612 | 57c9fafe | Anthony Liguori | prop, errp); |
613 | 6a146eba | Anthony Liguori | } |
614 | 1de81d28 | Anthony Liguori | |
615 | 9674bfe4 | Anthony Liguori | static void device_initfn(Object *obj) |
616 | 9674bfe4 | Anthony Liguori | { |
617 | 9674bfe4 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
618 | 9674bfe4 | Anthony Liguori | Property *prop; |
619 | 9674bfe4 | Anthony Liguori | |
620 | 9674bfe4 | Anthony Liguori | if (qdev_hotplug) {
|
621 | 9674bfe4 | Anthony Liguori | dev->hotplugged = 1;
|
622 | 9674bfe4 | Anthony Liguori | qdev_hot_added = true;
|
623 | 9674bfe4 | Anthony Liguori | } |
624 | 9674bfe4 | Anthony Liguori | |
625 | 9674bfe4 | Anthony Liguori | dev->instance_id_alias = -1;
|
626 | 9674bfe4 | Anthony Liguori | dev->state = DEV_STATE_CREATED; |
627 | 9674bfe4 | Anthony Liguori | |
628 | 9674bfe4 | Anthony Liguori | for (prop = qdev_get_props(dev); prop && prop->name; prop++) {
|
629 | 9674bfe4 | Anthony Liguori | qdev_property_add_legacy(dev, prop, NULL);
|
630 | 9674bfe4 | Anthony Liguori | qdev_property_add_static(dev, prop, NULL);
|
631 | 9674bfe4 | Anthony Liguori | } |
632 | 9674bfe4 | Anthony Liguori | |
633 | 57c9fafe | Anthony Liguori | object_property_add_str(OBJECT(dev), "type", qdev_get_type, NULL, NULL); |
634 | 4f2d3d70 | Paolo Bonzini | qdev_prop_set_defaults(dev, qdev_get_props(dev)); |
635 | 9674bfe4 | Anthony Liguori | } |
636 | 9674bfe4 | Anthony Liguori | |
637 | 60adba37 | Anthony Liguori | /* Unlink device from bus and free the structure. */
|
638 | 60adba37 | Anthony Liguori | static void device_finalize(Object *obj) |
639 | 60adba37 | Anthony Liguori | { |
640 | 60adba37 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
641 | 60adba37 | Anthony Liguori | BusState *bus; |
642 | 60adba37 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
643 | 60adba37 | Anthony Liguori | |
644 | 60adba37 | Anthony Liguori | if (dev->state == DEV_STATE_INITIALIZED) {
|
645 | 60adba37 | Anthony Liguori | while (dev->num_child_bus) {
|
646 | 60adba37 | Anthony Liguori | bus = QLIST_FIRST(&dev->child_bus); |
647 | 60adba37 | Anthony Liguori | qbus_free(bus); |
648 | 60adba37 | Anthony Liguori | } |
649 | 60adba37 | Anthony Liguori | if (qdev_get_vmsd(dev)) {
|
650 | 60adba37 | Anthony Liguori | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); |
651 | 60adba37 | Anthony Liguori | } |
652 | 60adba37 | Anthony Liguori | if (dc->exit) {
|
653 | 60adba37 | Anthony Liguori | dc->exit(dev); |
654 | 60adba37 | Anthony Liguori | } |
655 | 60adba37 | Anthony Liguori | if (dev->opts) {
|
656 | 60adba37 | Anthony Liguori | qemu_opts_del(dev->opts); |
657 | 60adba37 | Anthony Liguori | } |
658 | 60adba37 | Anthony Liguori | } |
659 | 60adba37 | Anthony Liguori | QTAILQ_REMOVE(&dev->parent_bus->children, dev, sibling); |
660 | 60adba37 | Anthony Liguori | } |
661 | 60adba37 | Anthony Liguori | |
662 | 94afdadc | Anthony Liguori | void device_reset(DeviceState *dev)
|
663 | 94afdadc | Anthony Liguori | { |
664 | 94afdadc | Anthony Liguori | DeviceClass *klass = DEVICE_GET_CLASS(dev); |
665 | 94afdadc | Anthony Liguori | |
666 | 94afdadc | Anthony Liguori | if (klass->reset) {
|
667 | 94afdadc | Anthony Liguori | klass->reset(dev); |
668 | 94afdadc | Anthony Liguori | } |
669 | 94afdadc | Anthony Liguori | } |
670 | 94afdadc | Anthony Liguori | |
671 | f05f6b4a | Paolo Bonzini | Object *qdev_get_machine(void)
|
672 | f05f6b4a | Paolo Bonzini | { |
673 | f05f6b4a | Paolo Bonzini | static Object *dev;
|
674 | f05f6b4a | Paolo Bonzini | |
675 | f05f6b4a | Paolo Bonzini | if (dev == NULL) { |
676 | f05f6b4a | Paolo Bonzini | dev = container_get("/machine");
|
677 | f05f6b4a | Paolo Bonzini | } |
678 | f05f6b4a | Paolo Bonzini | |
679 | f05f6b4a | Paolo Bonzini | return dev;
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680 | f05f6b4a | Paolo Bonzini | } |
681 | f05f6b4a | Paolo Bonzini | |
682 | 32fea402 | Anthony Liguori | static TypeInfo device_type_info = {
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683 | 32fea402 | Anthony Liguori | .name = TYPE_DEVICE, |
684 | 32fea402 | Anthony Liguori | .parent = TYPE_OBJECT, |
685 | 32fea402 | Anthony Liguori | .instance_size = sizeof(DeviceState),
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686 | 9674bfe4 | Anthony Liguori | .instance_init = device_initfn, |
687 | 60adba37 | Anthony Liguori | .instance_finalize = device_finalize, |
688 | 32fea402 | Anthony Liguori | .abstract = true,
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689 | 32fea402 | Anthony Liguori | .class_size = sizeof(DeviceClass),
|
690 | 32fea402 | Anthony Liguori | }; |
691 | 32fea402 | Anthony Liguori | |
692 | 83f7d43a | Andreas Färber | static void qdev_register_types(void) |
693 | 32fea402 | Anthony Liguori | { |
694 | 32fea402 | Anthony Liguori | type_register_static(&device_type_info); |
695 | 32fea402 | Anthony Liguori | } |
696 | 32fea402 | Anthony Liguori | |
697 | 83f7d43a | Andreas Färber | type_init(qdev_register_types) |