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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 | 56f9107e | Luiz Capitulino | #include "error.h" |
32 | aae9460e | Paul Brook | |
33 | ee46d8a5 | Anthony Liguori | int qdev_hotplug = 0; |
34 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_added = false; |
35 | 0ac8ef71 | Alex Williamson | static bool qdev_hot_removed = false; |
36 | 3418bd25 | Gerd Hoffmann | |
37 | cdaed7c7 | Gerd Hoffmann | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */
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38 | b9aaf7f8 | Blue Swirl | static BusState *main_system_bus;
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39 | 2da8bb92 | Isaku Yamahata | static void main_system_bus_create(void); |
40 | 4d6ae674 | Paul Brook | |
41 | aae9460e | Paul Brook | /* Register a new device type. */
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42 | 4be9f0d1 | Anthony Liguori | const VMStateDescription *qdev_get_vmsd(DeviceState *dev)
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43 | 4be9f0d1 | Anthony Liguori | { |
44 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
45 | 6e008585 | Anthony Liguori | return dc->vmsd;
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46 | 4be9f0d1 | Anthony Liguori | } |
47 | 4be9f0d1 | Anthony Liguori | |
48 | 4be9f0d1 | Anthony Liguori | BusInfo *qdev_get_bus_info(DeviceState *dev) |
49 | 4be9f0d1 | Anthony Liguori | { |
50 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
51 | 6e008585 | Anthony Liguori | return dc->bus_info;
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52 | 4be9f0d1 | Anthony Liguori | } |
53 | 4be9f0d1 | Anthony Liguori | |
54 | 4be9f0d1 | Anthony Liguori | Property *qdev_get_props(DeviceState *dev) |
55 | 4be9f0d1 | Anthony Liguori | { |
56 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
57 | 6e008585 | Anthony Liguori | return dc->props;
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58 | 4be9f0d1 | Anthony Liguori | } |
59 | 4be9f0d1 | Anthony Liguori | |
60 | 4be9f0d1 | Anthony Liguori | const char *qdev_fw_name(DeviceState *dev) |
61 | 4be9f0d1 | Anthony Liguori | { |
62 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
63 | 4be9f0d1 | Anthony Liguori | |
64 | 6e008585 | Anthony Liguori | if (dc->fw_name) {
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65 | 6e008585 | Anthony Liguori | return dc->fw_name;
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66 | 4be9f0d1 | Anthony Liguori | } |
67 | 4be9f0d1 | Anthony Liguori | |
68 | 4be9f0d1 | Anthony Liguori | return object_get_typename(OBJECT(dev));
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69 | 4be9f0d1 | Anthony Liguori | } |
70 | 4be9f0d1 | Anthony Liguori | |
71 | a369da5f | Blue Swirl | bool qdev_exists(const char *name) |
72 | a369da5f | Blue Swirl | { |
73 | 212ad111 | Anthony Liguori | return !!object_class_by_name(name);
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74 | a369da5f | Blue Swirl | } |
75 | 40021f08 | Anthony Liguori | |
76 | ca2cc788 | Paolo Bonzini | static void qdev_property_add_legacy(DeviceState *dev, Property *prop, |
77 | ca2cc788 | Paolo Bonzini | Error **errp); |
78 | ca2cc788 | Paolo Bonzini | |
79 | 9fbe6127 | Anthony Liguori | void qdev_set_parent_bus(DeviceState *dev, BusState *bus)
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80 | 0c17542d | Markus Armbruster | { |
81 | a5296ca9 | Anthony Liguori | Property *prop; |
82 | 0c17542d | Markus Armbruster | |
83 | 0c17542d | Markus Armbruster | if (qdev_hotplug) {
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84 | 0c17542d | Markus Armbruster | assert(bus->allow_hotplug); |
85 | 0c17542d | Markus Armbruster | } |
86 | a5296ca9 | Anthony Liguori | |
87 | 9fbe6127 | Anthony Liguori | dev->parent_bus = bus; |
88 | 9674bfe4 | Anthony Liguori | QTAILQ_INSERT_HEAD(&bus->children, dev, sibling); |
89 | a5296ca9 | Anthony Liguori | |
90 | 6e008585 | Anthony Liguori | for (prop = qdev_get_bus_info(dev)->props; prop && prop->name; prop++) {
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91 | a5296ca9 | Anthony Liguori | qdev_property_add_legacy(dev, prop, NULL);
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92 | ca2cc788 | Paolo Bonzini | qdev_property_add_static(dev, prop, NULL);
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93 | a5296ca9 | Anthony Liguori | } |
94 | 4f2d3d70 | Paolo Bonzini | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
95 | 0c17542d | Markus Armbruster | } |
96 | 0c17542d | Markus Armbruster | |
97 | aae9460e | Paul Brook | /* Create a new device. This only initializes the device state structure
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98 | aae9460e | Paul Brook | and allows properties to be set. qdev_init should be called to
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99 | aae9460e | Paul Brook | initialize the actual device emulation. */
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100 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name) |
101 | aae9460e | Paul Brook | { |
102 | 0bcdeda7 | Blue Swirl | DeviceState *dev; |
103 | 0bcdeda7 | Blue Swirl | |
104 | 0bcdeda7 | Blue Swirl | dev = qdev_try_create(bus, name); |
105 | 0bcdeda7 | Blue Swirl | if (!dev) {
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106 | e92714c7 | Peter Maydell | if (bus) {
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107 | e92714c7 | Peter Maydell | hw_error("Unknown device '%s' for bus '%s'\n", name,
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108 | e92714c7 | Peter Maydell | bus->info->name); |
109 | e92714c7 | Peter Maydell | } else {
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110 | e92714c7 | Peter Maydell | hw_error("Unknown device '%s' for default sysbus\n", name);
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111 | e92714c7 | Peter Maydell | } |
112 | 0bcdeda7 | Blue Swirl | } |
113 | 0bcdeda7 | Blue Swirl | |
114 | 0bcdeda7 | Blue Swirl | return dev;
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115 | 0bcdeda7 | Blue Swirl | } |
116 | 0bcdeda7 | Blue Swirl | |
117 | da57febf | Paolo Bonzini | DeviceState *qdev_try_create(BusState *bus, const char *type) |
118 | 0bcdeda7 | Blue Swirl | { |
119 | 9fbe6127 | Anthony Liguori | DeviceState *dev; |
120 | 9fbe6127 | Anthony Liguori | |
121 | da57febf | Paolo Bonzini | if (object_class_by_name(type) == NULL) { |
122 | 4ed658ca | Andreas Färber | return NULL; |
123 | 4ed658ca | Andreas Färber | } |
124 | da57febf | Paolo Bonzini | dev = DEVICE(object_new(type)); |
125 | 9fbe6127 | Anthony Liguori | if (!dev) {
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126 | 9fbe6127 | Anthony Liguori | return NULL; |
127 | 9fbe6127 | Anthony Liguori | } |
128 | 9fbe6127 | Anthony Liguori | |
129 | 10c4c98a | Gerd Hoffmann | if (!bus) {
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130 | 68694897 | Stefan Weil | bus = sysbus_get_default(); |
131 | 10c4c98a | Gerd Hoffmann | } |
132 | 10c4c98a | Gerd Hoffmann | |
133 | 9fbe6127 | Anthony Liguori | qdev_set_parent_bus(dev, bus); |
134 | 9fbe6127 | Anthony Liguori | qdev_prop_set_globals(dev); |
135 | 9fbe6127 | Anthony Liguori | |
136 | 9fbe6127 | Anthony Liguori | return dev;
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137 | aae9460e | Paul Brook | } |
138 | aae9460e | Paul Brook | |
139 | aae9460e | Paul Brook | /* Initialize a device. Device properties should be set before calling
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140 | aae9460e | Paul Brook | this function. IRQs and MMIO regions should be connected/mapped after
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141 | 18cfeb52 | Markus Armbruster | calling this function.
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142 | 18cfeb52 | Markus Armbruster | On failure, destroy the device and return negative value.
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143 | 18cfeb52 | Markus Armbruster | Return 0 on success. */
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144 | 81a322d4 | Gerd Hoffmann | int qdev_init(DeviceState *dev)
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145 | aae9460e | Paul Brook | { |
146 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
147 | 959f733a | Gerd Hoffmann | int rc;
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148 | 959f733a | Gerd Hoffmann | |
149 | 131ec1bd | Gerd Hoffmann | assert(dev->state == DEV_STATE_CREATED); |
150 | 6e008585 | Anthony Liguori | |
151 | d307af79 | Anthony Liguori | rc = dc->init(dev); |
152 | 18cfeb52 | Markus Armbruster | if (rc < 0) { |
153 | 18cfeb52 | Markus Armbruster | qdev_free(dev); |
154 | 959f733a | Gerd Hoffmann | return rc;
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155 | 18cfeb52 | Markus Armbruster | } |
156 | da57febf | Paolo Bonzini | |
157 | da57febf | Paolo Bonzini | if (!OBJECT(dev)->parent) {
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158 | da57febf | Paolo Bonzini | static int unattached_count = 0; |
159 | da57febf | Paolo Bonzini | gchar *name = g_strdup_printf("device[%d]", unattached_count++);
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160 | da57febf | Paolo Bonzini | |
161 | dfe47e70 | Andreas Färber | object_property_add_child(container_get(qdev_get_machine(), |
162 | dfe47e70 | Andreas Färber | "/unattached"),
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163 | dfe47e70 | Andreas Färber | name, OBJECT(dev), NULL);
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164 | da57febf | Paolo Bonzini | g_free(name); |
165 | da57febf | Paolo Bonzini | } |
166 | da57febf | Paolo Bonzini | |
167 | 6e008585 | Anthony Liguori | if (qdev_get_vmsd(dev)) {
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168 | 6e008585 | Anthony Liguori | vmstate_register_with_alias_id(dev, -1, qdev_get_vmsd(dev), dev,
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169 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias, |
170 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version); |
171 | 4d2ffa08 | Jan Kiszka | } |
172 | 131ec1bd | Gerd Hoffmann | dev->state = DEV_STATE_INITIALIZED; |
173 | 94afdadc | Anthony Liguori | if (dev->hotplugged) {
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174 | 94afdadc | Anthony Liguori | device_reset(dev); |
175 | 5ab28c83 | Jan Kiszka | } |
176 | 959f733a | Gerd Hoffmann | return 0; |
177 | 02e2da45 | Paul Brook | } |
178 | 02e2da45 | Paul Brook | |
179 | 4d2ffa08 | Jan Kiszka | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
180 | 4d2ffa08 | Jan Kiszka | int required_for_version)
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181 | 4d2ffa08 | Jan Kiszka | { |
182 | 4d2ffa08 | Jan Kiszka | assert(dev->state == DEV_STATE_CREATED); |
183 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = alias_id; |
184 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version = required_for_version; |
185 | 4d2ffa08 | Jan Kiszka | } |
186 | 4d2ffa08 | Jan Kiszka | |
187 | 56f9107e | Luiz Capitulino | void qdev_unplug(DeviceState *dev, Error **errp)
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188 | 3418bd25 | Gerd Hoffmann | { |
189 | 6e008585 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
190 | 6e008585 | Anthony Liguori | |
191 | 3418bd25 | Gerd Hoffmann | if (!dev->parent_bus->allow_hotplug) {
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192 | 56f9107e | Luiz Capitulino | error_set(errp, QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
193 | 56f9107e | Luiz Capitulino | return;
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194 | 3418bd25 | Gerd Hoffmann | } |
195 | 6e008585 | Anthony Liguori | assert(dc->unplug != NULL);
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196 | 593831de | Amit Shah | |
197 | 0ac8ef71 | Alex Williamson | qdev_hot_removed = true;
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198 | 0ac8ef71 | Alex Williamson | |
199 | 56f9107e | Luiz Capitulino | if (dc->unplug(dev) < 0) { |
200 | 56f9107e | Luiz Capitulino | error_set(errp, QERR_UNDEFINED_ERROR); |
201 | 56f9107e | Luiz Capitulino | return;
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202 | 56f9107e | Luiz Capitulino | } |
203 | 3418bd25 | Gerd Hoffmann | } |
204 | 3418bd25 | Gerd Hoffmann | |
205 | ec990eb6 | Anthony Liguori | static int qdev_reset_one(DeviceState *dev, void *opaque) |
206 | ec990eb6 | Anthony Liguori | { |
207 | 94afdadc | Anthony Liguori | device_reset(dev); |
208 | ec990eb6 | Anthony Liguori | |
209 | ec990eb6 | Anthony Liguori | return 0; |
210 | ec990eb6 | Anthony Liguori | } |
211 | ec990eb6 | Anthony Liguori | |
212 | ec990eb6 | Anthony Liguori | BusState *sysbus_get_default(void)
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213 | ec990eb6 | Anthony Liguori | { |
214 | 68694897 | Stefan Weil | if (!main_system_bus) {
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215 | 2da8bb92 | Isaku Yamahata | main_system_bus_create(); |
216 | 68694897 | Stefan Weil | } |
217 | ec990eb6 | Anthony Liguori | return main_system_bus;
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218 | ec990eb6 | Anthony Liguori | } |
219 | ec990eb6 | Anthony Liguori | |
220 | b4694b7c | Isaku Yamahata | static int qbus_reset_one(BusState *bus, void *opaque) |
221 | b4694b7c | Isaku Yamahata | { |
222 | b4694b7c | Isaku Yamahata | if (bus->info->reset) {
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223 | b4694b7c | Isaku Yamahata | return bus->info->reset(bus);
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224 | b4694b7c | Isaku Yamahata | } |
225 | b4694b7c | Isaku Yamahata | return 0; |
226 | b4694b7c | Isaku Yamahata | } |
227 | b4694b7c | Isaku Yamahata | |
228 | 5af0a04b | Isaku Yamahata | void qdev_reset_all(DeviceState *dev)
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229 | 5af0a04b | Isaku Yamahata | { |
230 | 5af0a04b | Isaku Yamahata | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL);
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231 | 5af0a04b | Isaku Yamahata | } |
232 | 5af0a04b | Isaku Yamahata | |
233 | 80376c3f | Isaku Yamahata | void qbus_reset_all_fn(void *opaque) |
234 | 80376c3f | Isaku Yamahata | { |
235 | 80376c3f | Isaku Yamahata | BusState *bus = opaque; |
236 | f530cce3 | Michael S. Tsirkin | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
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237 | 80376c3f | Isaku Yamahata | } |
238 | 80376c3f | Isaku Yamahata | |
239 | 3418bd25 | Gerd Hoffmann | /* can be used as ->unplug() callback for the simple cases */
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240 | 3418bd25 | Gerd Hoffmann | int qdev_simple_unplug_cb(DeviceState *dev)
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241 | 3418bd25 | Gerd Hoffmann | { |
242 | 3418bd25 | Gerd Hoffmann | /* just zap it */
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243 | 57c9fafe | Anthony Liguori | object_unparent(OBJECT(dev)); |
244 | 3418bd25 | Gerd Hoffmann | qdev_free(dev); |
245 | 3418bd25 | Gerd Hoffmann | return 0; |
246 | 3418bd25 | Gerd Hoffmann | } |
247 | 3418bd25 | Gerd Hoffmann | |
248 | 3b29a101 | Michael Tokarev | |
249 | 3b29a101 | Michael Tokarev | /* Like qdev_init(), but terminate program via error_report() instead of
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250 | e23a1b33 | Markus Armbruster | returning an error value. This is okay during machine creation.
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251 | e23a1b33 | Markus Armbruster | Don't use for hotplug, because there callers need to recover from
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252 | e23a1b33 | Markus Armbruster | failure. Exception: if you know the device's init() callback can't
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253 | e23a1b33 | Markus Armbruster | fail, then qdev_init_nofail() can't fail either, and is therefore
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254 | e23a1b33 | Markus Armbruster | usable even then. But relying on the device implementation that
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255 | e23a1b33 | Markus Armbruster | way is somewhat unclean, and best avoided. */
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256 | e23a1b33 | Markus Armbruster | void qdev_init_nofail(DeviceState *dev)
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257 | e23a1b33 | Markus Armbruster | { |
258 | bd6c9a61 | Markus Armbruster | if (qdev_init(dev) < 0) { |
259 | 6e008585 | Anthony Liguori | error_report("Initialization of device %s failed",
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260 | 6e008585 | Anthony Liguori | object_get_typename(OBJECT(dev))); |
261 | bd6c9a61 | Markus Armbruster | exit(1);
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262 | bd6c9a61 | Markus Armbruster | } |
263 | e23a1b33 | Markus Armbruster | } |
264 | e23a1b33 | Markus Armbruster | |
265 | 02e2da45 | Paul Brook | /* Unlink device from bus and free the structure. */
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266 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev)
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267 | 02e2da45 | Paul Brook | { |
268 | 32fea402 | Anthony Liguori | object_delete(OBJECT(dev)); |
269 | aae9460e | Paul Brook | } |
270 | aae9460e | Paul Brook | |
271 | 3418bd25 | Gerd Hoffmann | void qdev_machine_creation_done(void) |
272 | 3418bd25 | Gerd Hoffmann | { |
273 | 3418bd25 | Gerd Hoffmann | /*
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274 | 3418bd25 | Gerd Hoffmann | * ok, initial machine setup is done, starting from now we can
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275 | 3418bd25 | Gerd Hoffmann | * only create hotpluggable devices
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276 | 3418bd25 | Gerd Hoffmann | */
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277 | 3418bd25 | Gerd Hoffmann | qdev_hotplug = 1;
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278 | 3418bd25 | Gerd Hoffmann | } |
279 | 3418bd25 | Gerd Hoffmann | |
280 | 0ac8ef71 | Alex Williamson | bool qdev_machine_modified(void) |
281 | 0ac8ef71 | Alex Williamson | { |
282 | 0ac8ef71 | Alex Williamson | return qdev_hot_added || qdev_hot_removed;
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283 | 0ac8ef71 | Alex Williamson | } |
284 | 0ac8ef71 | Alex Williamson | |
285 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev) |
286 | aae9460e | Paul Brook | { |
287 | 02e2da45 | Paul Brook | return dev->parent_bus;
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288 | aae9460e | Paul Brook | } |
289 | aae9460e | Paul Brook | |
290 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
291 | aae9460e | Paul Brook | { |
292 | aae9460e | Paul Brook | assert(dev->num_gpio_in == 0);
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293 | aae9460e | Paul Brook | dev->num_gpio_in = n; |
294 | aae9460e | Paul Brook | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); |
295 | aae9460e | Paul Brook | } |
296 | aae9460e | Paul Brook | |
297 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
298 | aae9460e | Paul Brook | { |
299 | aae9460e | Paul Brook | assert(dev->num_gpio_out == 0);
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300 | aae9460e | Paul Brook | dev->num_gpio_out = n; |
301 | aae9460e | Paul Brook | dev->gpio_out = pins; |
302 | aae9460e | Paul Brook | } |
303 | aae9460e | Paul Brook | |
304 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
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305 | aae9460e | Paul Brook | { |
306 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_in);
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307 | aae9460e | Paul Brook | return dev->gpio_in[n];
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308 | aae9460e | Paul Brook | } |
309 | aae9460e | Paul Brook | |
310 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
311 | aae9460e | Paul Brook | { |
312 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_out);
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313 | aae9460e | Paul Brook | dev->gpio_out[n] = pin; |
314 | aae9460e | Paul Brook | } |
315 | aae9460e | Paul Brook | |
316 | ed16ab5a | Gerd Hoffmann | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd)
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317 | ed16ab5a | Gerd Hoffmann | { |
318 | 6eed1856 | Jan Kiszka | qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a);
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319 | ed16ab5a | Gerd Hoffmann | if (nd->vlan)
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320 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_vlan(dev, "vlan", nd->vlan);
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321 | ed16ab5a | Gerd Hoffmann | if (nd->netdev)
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322 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_netdev(dev, "netdev", nd->netdev);
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323 | 75422b0d | Amit Shah | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
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324 | 97b15621 | Gerd Hoffmann | qdev_prop_exists(dev, "vectors")) {
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325 | 97b15621 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "vectors", nd->nvectors);
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326 | 97b15621 | Gerd Hoffmann | } |
327 | 48e2faf2 | Peter Maydell | nd->instantiated = 1;
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328 | ed16ab5a | Gerd Hoffmann | } |
329 | ed16ab5a | Gerd Hoffmann | |
330 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
331 | 4d6ae674 | Paul Brook | { |
332 | 02e2da45 | Paul Brook | BusState *bus; |
333 | 4d6ae674 | Paul Brook | |
334 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
335 | 4d6ae674 | Paul Brook | if (strcmp(name, bus->name) == 0) { |
336 | 02e2da45 | Paul Brook | return bus;
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337 | 4d6ae674 | Paul Brook | } |
338 | 4d6ae674 | Paul Brook | } |
339 | 4d6ae674 | Paul Brook | return NULL; |
340 | 4d6ae674 | Paul Brook | } |
341 | 4d6ae674 | Paul Brook | |
342 | 81699d8a | Anthony Liguori | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
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343 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
344 | 81699d8a | Anthony Liguori | { |
345 | 81699d8a | Anthony Liguori | DeviceState *dev; |
346 | 81699d8a | Anthony Liguori | int err;
|
347 | 81699d8a | Anthony Liguori | |
348 | 81699d8a | Anthony Liguori | if (busfn) {
|
349 | 81699d8a | Anthony Liguori | err = busfn(bus, opaque); |
350 | 81699d8a | Anthony Liguori | if (err) {
|
351 | 81699d8a | Anthony Liguori | return err;
|
352 | 81699d8a | Anthony Liguori | } |
353 | 81699d8a | Anthony Liguori | } |
354 | 81699d8a | Anthony Liguori | |
355 | d8bb00d6 | Paolo Bonzini | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
356 | 81699d8a | Anthony Liguori | err = qdev_walk_children(dev, devfn, busfn, opaque); |
357 | 81699d8a | Anthony Liguori | if (err < 0) { |
358 | 81699d8a | Anthony Liguori | return err;
|
359 | 81699d8a | Anthony Liguori | } |
360 | 81699d8a | Anthony Liguori | } |
361 | 81699d8a | Anthony Liguori | |
362 | 81699d8a | Anthony Liguori | return 0; |
363 | 81699d8a | Anthony Liguori | } |
364 | 81699d8a | Anthony Liguori | |
365 | 81699d8a | Anthony Liguori | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
|
366 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
367 | 81699d8a | Anthony Liguori | { |
368 | 81699d8a | Anthony Liguori | BusState *bus; |
369 | 81699d8a | Anthony Liguori | int err;
|
370 | 81699d8a | Anthony Liguori | |
371 | 81699d8a | Anthony Liguori | if (devfn) {
|
372 | 81699d8a | Anthony Liguori | err = devfn(dev, opaque); |
373 | 81699d8a | Anthony Liguori | if (err) {
|
374 | 81699d8a | Anthony Liguori | return err;
|
375 | 81699d8a | Anthony Liguori | } |
376 | 81699d8a | Anthony Liguori | } |
377 | 81699d8a | Anthony Liguori | |
378 | 81699d8a | Anthony Liguori | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
379 | 81699d8a | Anthony Liguori | err = qbus_walk_children(bus, devfn, busfn, opaque); |
380 | 81699d8a | Anthony Liguori | if (err < 0) { |
381 | 81699d8a | Anthony Liguori | return err;
|
382 | 81699d8a | Anthony Liguori | } |
383 | 81699d8a | Anthony Liguori | } |
384 | 81699d8a | Anthony Liguori | |
385 | 81699d8a | Anthony Liguori | return 0; |
386 | 81699d8a | Anthony Liguori | } |
387 | 81699d8a | Anthony Liguori | |
388 | a2ee6b4f | Isaku Yamahata | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
389 | 3418bd25 | Gerd Hoffmann | { |
390 | 3418bd25 | Gerd Hoffmann | DeviceState *dev, *ret; |
391 | 3418bd25 | Gerd Hoffmann | BusState *child; |
392 | 3418bd25 | Gerd Hoffmann | |
393 | d8bb00d6 | Paolo Bonzini | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
394 | 3418bd25 | Gerd Hoffmann | if (dev->id && strcmp(dev->id, id) == 0) |
395 | 3418bd25 | Gerd Hoffmann | return dev;
|
396 | 3418bd25 | Gerd Hoffmann | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
397 | 3418bd25 | Gerd Hoffmann | ret = qdev_find_recursive(child, id); |
398 | 3418bd25 | Gerd Hoffmann | if (ret) {
|
399 | 3418bd25 | Gerd Hoffmann | return ret;
|
400 | 3418bd25 | Gerd Hoffmann | } |
401 | 3418bd25 | Gerd Hoffmann | } |
402 | 3418bd25 | Gerd Hoffmann | } |
403 | 3418bd25 | Gerd Hoffmann | return NULL; |
404 | 3418bd25 | Gerd Hoffmann | } |
405 | 3418bd25 | Gerd Hoffmann | |
406 | cd739fb6 | Gerd Hoffmann | void qbus_create_inplace(BusState *bus, BusInfo *info,
|
407 | cd739fb6 | Gerd Hoffmann | DeviceState *parent, const char *name) |
408 | 02e2da45 | Paul Brook | { |
409 | d271de9f | Gerd Hoffmann | char *buf;
|
410 | d271de9f | Gerd Hoffmann | int i,len;
|
411 | 02e2da45 | Paul Brook | |
412 | 10c4c98a | Gerd Hoffmann | bus->info = info; |
413 | 02e2da45 | Paul Brook | bus->parent = parent; |
414 | d271de9f | Gerd Hoffmann | |
415 | d271de9f | Gerd Hoffmann | if (name) {
|
416 | d271de9f | Gerd Hoffmann | /* use supplied name */
|
417 | 7267c094 | Anthony Liguori | bus->name = g_strdup(name); |
418 | d271de9f | Gerd Hoffmann | } else if (parent && parent->id) { |
419 | d271de9f | Gerd Hoffmann | /* parent device has id -> use it for bus name */
|
420 | d271de9f | Gerd Hoffmann | len = strlen(parent->id) + 16;
|
421 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
422 | d271de9f | Gerd Hoffmann | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus);
|
423 | d271de9f | Gerd Hoffmann | bus->name = buf; |
424 | d271de9f | Gerd Hoffmann | } else {
|
425 | d271de9f | Gerd Hoffmann | /* no id -> use lowercase bus type for bus name */
|
426 | d271de9f | Gerd Hoffmann | len = strlen(info->name) + 16;
|
427 | 7267c094 | Anthony Liguori | buf = g_malloc(len); |
428 | d271de9f | Gerd Hoffmann | len = snprintf(buf, len, "%s.%d", info->name,
|
429 | d271de9f | Gerd Hoffmann | parent ? parent->num_child_bus : 0);
|
430 | d271de9f | Gerd Hoffmann | for (i = 0; i < len; i++) |
431 | bb87ece5 | Christoph Egger | buf[i] = qemu_tolower(buf[i]); |
432 | d271de9f | Gerd Hoffmann | bus->name = buf; |
433 | d271de9f | Gerd Hoffmann | } |
434 | d271de9f | Gerd Hoffmann | |
435 | d8bb00d6 | Paolo Bonzini | QTAILQ_INIT(&bus->children); |
436 | 02e2da45 | Paul Brook | if (parent) {
|
437 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
438 | d271de9f | Gerd Hoffmann | parent->num_child_bus++; |
439 | 80376c3f | Isaku Yamahata | } else if (bus != main_system_bus) { |
440 | 80376c3f | Isaku Yamahata | /* TODO: once all bus devices are qdevified,
|
441 | 80376c3f | Isaku Yamahata | only reset handler for main_system_bus should be registered here. */
|
442 | 80376c3f | Isaku Yamahata | qemu_register_reset(qbus_reset_all_fn, bus); |
443 | 02e2da45 | Paul Brook | } |
444 | cd739fb6 | Gerd Hoffmann | } |
445 | cd739fb6 | Gerd Hoffmann | |
446 | cd739fb6 | Gerd Hoffmann | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) |
447 | cd739fb6 | Gerd Hoffmann | { |
448 | cd739fb6 | Gerd Hoffmann | BusState *bus; |
449 | cd739fb6 | Gerd Hoffmann | |
450 | 7267c094 | Anthony Liguori | bus = g_malloc0(info->size); |
451 | cd739fb6 | Gerd Hoffmann | bus->qdev_allocated = 1;
|
452 | cd739fb6 | Gerd Hoffmann | qbus_create_inplace(bus, info, parent, name); |
453 | 02e2da45 | Paul Brook | return bus;
|
454 | 02e2da45 | Paul Brook | } |
455 | cae4956e | Gerd Hoffmann | |
456 | 2da8bb92 | Isaku Yamahata | static void main_system_bus_create(void) |
457 | 2da8bb92 | Isaku Yamahata | { |
458 | 2da8bb92 | Isaku Yamahata | /* assign main_system_bus before qbus_create_inplace()
|
459 | 2da8bb92 | Isaku Yamahata | * in order to make "if (bus != main_system_bus)" work */
|
460 | 7267c094 | Anthony Liguori | main_system_bus = g_malloc0(system_bus_info.size); |
461 | 2da8bb92 | Isaku Yamahata | main_system_bus->qdev_allocated = 1;
|
462 | 2da8bb92 | Isaku Yamahata | qbus_create_inplace(main_system_bus, &system_bus_info, NULL,
|
463 | 2da8bb92 | Isaku Yamahata | "main-system-bus");
|
464 | 2da8bb92 | Isaku Yamahata | } |
465 | 2da8bb92 | Isaku Yamahata | |
466 | 131ec1bd | Gerd Hoffmann | void qbus_free(BusState *bus)
|
467 | 131ec1bd | Gerd Hoffmann | { |
468 | 131ec1bd | Gerd Hoffmann | DeviceState *dev; |
469 | 131ec1bd | Gerd Hoffmann | |
470 | d8bb00d6 | Paolo Bonzini | while ((dev = QTAILQ_FIRST(&bus->children)) != NULL) { |
471 | 131ec1bd | Gerd Hoffmann | qdev_free(dev); |
472 | 131ec1bd | Gerd Hoffmann | } |
473 | 131ec1bd | Gerd Hoffmann | if (bus->parent) {
|
474 | 131ec1bd | Gerd Hoffmann | QLIST_REMOVE(bus, sibling); |
475 | 131ec1bd | Gerd Hoffmann | bus->parent->num_child_bus--; |
476 | 80376c3f | Isaku Yamahata | } else {
|
477 | 80376c3f | Isaku Yamahata | assert(bus != main_system_bus); /* main_system_bus is never freed */
|
478 | 80376c3f | Isaku Yamahata | qemu_unregister_reset(qbus_reset_all_fn, bus); |
479 | 131ec1bd | Gerd Hoffmann | } |
480 | 7267c094 | Anthony Liguori | g_free((void*)bus->name);
|
481 | 131ec1bd | Gerd Hoffmann | if (bus->qdev_allocated) {
|
482 | 7267c094 | Anthony Liguori | g_free(bus); |
483 | 131ec1bd | Gerd Hoffmann | } |
484 | 131ec1bd | Gerd Hoffmann | } |
485 | 131ec1bd | Gerd Hoffmann | |
486 | 1ca4d09a | Gleb Natapov | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
487 | 1ca4d09a | Gleb Natapov | { |
488 | 1ca4d09a | Gleb Natapov | int l = 0; |
489 | 1ca4d09a | Gleb Natapov | |
490 | 1ca4d09a | Gleb Natapov | if (dev && dev->parent_bus) {
|
491 | 1ca4d09a | Gleb Natapov | char *d;
|
492 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); |
493 | 1ca4d09a | Gleb Natapov | if (dev->parent_bus->info->get_fw_dev_path) {
|
494 | 1ca4d09a | Gleb Natapov | d = dev->parent_bus->info->get_fw_dev_path(dev); |
495 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l, size - l, "%s", d);
|
496 | 7267c094 | Anthony Liguori | g_free(d); |
497 | 1ca4d09a | Gleb Natapov | } else {
|
498 | f79f2bfc | Anthony Liguori | l += snprintf(p + l, size - l, "%s", object_get_typename(OBJECT(dev)));
|
499 | 1ca4d09a | Gleb Natapov | } |
500 | 1ca4d09a | Gleb Natapov | } |
501 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l , size - l, "/");
|
502 | 1ca4d09a | Gleb Natapov | |
503 | 1ca4d09a | Gleb Natapov | return l;
|
504 | 1ca4d09a | Gleb Natapov | } |
505 | 1ca4d09a | Gleb Natapov | |
506 | 1ca4d09a | Gleb Natapov | char* qdev_get_fw_dev_path(DeviceState *dev)
|
507 | 1ca4d09a | Gleb Natapov | { |
508 | 1ca4d09a | Gleb Natapov | char path[128]; |
509 | 1ca4d09a | Gleb Natapov | int l;
|
510 | 1ca4d09a | Gleb Natapov | |
511 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev, path, 128);
|
512 | 1ca4d09a | Gleb Natapov | |
513 | 1ca4d09a | Gleb Natapov | path[l-1] = '\0'; |
514 | 1ca4d09a | Gleb Natapov | |
515 | 1ca4d09a | Gleb Natapov | return strdup(path);
|
516 | 1ca4d09a | Gleb Natapov | } |
517 | 85ed303b | Anthony Liguori | |
518 | 57c9fafe | Anthony Liguori | static char *qdev_get_type(Object *obj, Error **errp) |
519 | 85ed303b | Anthony Liguori | { |
520 | 57c9fafe | Anthony Liguori | return g_strdup(object_get_typename(obj));
|
521 | 44677ded | Anthony Liguori | } |
522 | a5296ca9 | Anthony Liguori | |
523 | a5296ca9 | Anthony Liguori | /**
|
524 | a5296ca9 | Anthony Liguori | * Legacy property handling
|
525 | a5296ca9 | Anthony Liguori | */
|
526 | a5296ca9 | Anthony Liguori | |
527 | 57c9fafe | Anthony Liguori | static void qdev_get_legacy_property(Object *obj, Visitor *v, void *opaque, |
528 | a5296ca9 | Anthony Liguori | const char *name, Error **errp) |
529 | a5296ca9 | Anthony Liguori | { |
530 | 57c9fafe | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
531 | a5296ca9 | Anthony Liguori | Property *prop = opaque; |
532 | a5296ca9 | Anthony Liguori | |
533 | e3cb6ba6 | Paolo Bonzini | char buffer[1024]; |
534 | e3cb6ba6 | Paolo Bonzini | char *ptr = buffer;
|
535 | a5296ca9 | Anthony Liguori | |
536 | e3cb6ba6 | Paolo Bonzini | prop->info->print(dev, prop, buffer, sizeof(buffer));
|
537 | e3cb6ba6 | Paolo Bonzini | visit_type_str(v, &ptr, name, errp); |
538 | a5296ca9 | Anthony Liguori | } |
539 | a5296ca9 | Anthony Liguori | |
540 | 57c9fafe | Anthony Liguori | static void qdev_set_legacy_property(Object *obj, Visitor *v, void *opaque, |
541 | a5296ca9 | Anthony Liguori | const char *name, Error **errp) |
542 | a5296ca9 | Anthony Liguori | { |
543 | 57c9fafe | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
544 | a5296ca9 | Anthony Liguori | Property *prop = opaque; |
545 | e3cb6ba6 | Paolo Bonzini | Error *local_err = NULL;
|
546 | e3cb6ba6 | Paolo Bonzini | char *ptr = NULL; |
547 | e3cb6ba6 | Paolo Bonzini | int ret;
|
548 | a5296ca9 | Anthony Liguori | |
549 | a5296ca9 | Anthony Liguori | if (dev->state != DEV_STATE_CREATED) {
|
550 | a5296ca9 | Anthony Liguori | error_set(errp, QERR_PERMISSION_DENIED); |
551 | a5296ca9 | Anthony Liguori | return;
|
552 | a5296ca9 | Anthony Liguori | } |
553 | a5296ca9 | Anthony Liguori | |
554 | e3cb6ba6 | Paolo Bonzini | visit_type_str(v, &ptr, name, &local_err); |
555 | e3cb6ba6 | Paolo Bonzini | if (local_err) {
|
556 | e3cb6ba6 | Paolo Bonzini | error_propagate(errp, local_err); |
557 | e3cb6ba6 | Paolo Bonzini | return;
|
558 | e3cb6ba6 | Paolo Bonzini | } |
559 | a5296ca9 | Anthony Liguori | |
560 | e3cb6ba6 | Paolo Bonzini | ret = prop->info->parse(dev, prop, ptr); |
561 | 7db4c4e8 | Paolo Bonzini | error_set_from_qdev_prop_error(errp, ret, dev, prop, ptr); |
562 | e3cb6ba6 | Paolo Bonzini | g_free(ptr); |
563 | a5296ca9 | Anthony Liguori | } |
564 | a5296ca9 | Anthony Liguori | |
565 | a5296ca9 | Anthony Liguori | /**
|
566 | a5296ca9 | Anthony Liguori | * @qdev_add_legacy_property - adds a legacy property
|
567 | a5296ca9 | Anthony Liguori | *
|
568 | a5296ca9 | Anthony Liguori | * Do not use this is new code! Properties added through this interface will
|
569 | ca2cc788 | Paolo Bonzini | * be given names and types in the "legacy" namespace.
|
570 | a5296ca9 | Anthony Liguori | *
|
571 | 68ee3569 | Paolo Bonzini | * Legacy properties are string versions of other OOM properties. The format
|
572 | 68ee3569 | Paolo Bonzini | * of the string depends on the property type.
|
573 | a5296ca9 | Anthony Liguori | */
|
574 | a5296ca9 | Anthony Liguori | void qdev_property_add_legacy(DeviceState *dev, Property *prop,
|
575 | a5296ca9 | Anthony Liguori | Error **errp) |
576 | a5296ca9 | Anthony Liguori | { |
577 | ca2cc788 | Paolo Bonzini | gchar *name, *type; |
578 | a5296ca9 | Anthony Liguori | |
579 | f3be016d | Anthony Liguori | /* Register pointer properties as legacy properties */
|
580 | f3be016d | Anthony Liguori | if (!prop->info->print && !prop->info->parse &&
|
581 | f3be016d | Anthony Liguori | (prop->info->set || prop->info->get)) { |
582 | 68ee3569 | Paolo Bonzini | return;
|
583 | 68ee3569 | Paolo Bonzini | } |
584 | f3be016d | Anthony Liguori | |
585 | ca2cc788 | Paolo Bonzini | name = g_strdup_printf("legacy-%s", prop->name);
|
586 | cafe5bdb | Paolo Bonzini | type = g_strdup_printf("legacy<%s>",
|
587 | cafe5bdb | Paolo Bonzini | prop->info->legacy_name ?: prop->info->name); |
588 | a5296ca9 | Anthony Liguori | |
589 | 57c9fafe | Anthony Liguori | object_property_add(OBJECT(dev), name, type, |
590 | 68ee3569 | Paolo Bonzini | prop->info->print ? qdev_get_legacy_property : prop->info->get, |
591 | 68ee3569 | Paolo Bonzini | prop->info->parse ? qdev_set_legacy_property : prop->info->set, |
592 | 57c9fafe | Anthony Liguori | NULL,
|
593 | 57c9fafe | Anthony Liguori | prop, errp); |
594 | a5296ca9 | Anthony Liguori | |
595 | a5296ca9 | Anthony Liguori | g_free(type); |
596 | ca2cc788 | Paolo Bonzini | g_free(name); |
597 | ca2cc788 | Paolo Bonzini | } |
598 | ca2cc788 | Paolo Bonzini | |
599 | ca2cc788 | Paolo Bonzini | /**
|
600 | ca2cc788 | Paolo Bonzini | * @qdev_property_add_static - add a @Property to a device.
|
601 | ca2cc788 | Paolo Bonzini | *
|
602 | ca2cc788 | Paolo Bonzini | * Static properties access data in a struct. The actual type of the
|
603 | ca2cc788 | Paolo Bonzini | * property and the field depends on the property type.
|
604 | ca2cc788 | Paolo Bonzini | */
|
605 | ca2cc788 | Paolo Bonzini | void qdev_property_add_static(DeviceState *dev, Property *prop,
|
606 | ca2cc788 | Paolo Bonzini | Error **errp) |
607 | ca2cc788 | Paolo Bonzini | { |
608 | d822979b | Paolo Bonzini | /*
|
609 | d822979b | Paolo Bonzini | * TODO qdev_prop_ptr does not have getters or setters. It must
|
610 | d822979b | Paolo Bonzini | * go now that it can be replaced with links. The test should be
|
611 | d822979b | Paolo Bonzini | * removed along with it: all static properties are read/write.
|
612 | d822979b | Paolo Bonzini | */
|
613 | d822979b | Paolo Bonzini | if (!prop->info->get && !prop->info->set) {
|
614 | d822979b | Paolo Bonzini | return;
|
615 | d822979b | Paolo Bonzini | } |
616 | d822979b | Paolo Bonzini | |
617 | 57c9fafe | Anthony Liguori | object_property_add(OBJECT(dev), prop->name, prop->info->name, |
618 | 57c9fafe | Anthony Liguori | prop->info->get, prop->info->set, |
619 | dd0ba250 | Paolo Bonzini | prop->info->release, |
620 | 57c9fafe | Anthony Liguori | prop, errp); |
621 | 6a146eba | Anthony Liguori | } |
622 | 1de81d28 | Anthony Liguori | |
623 | 9674bfe4 | Anthony Liguori | static void device_initfn(Object *obj) |
624 | 9674bfe4 | Anthony Liguori | { |
625 | 9674bfe4 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
626 | 9674bfe4 | Anthony Liguori | Property *prop; |
627 | 9674bfe4 | Anthony Liguori | |
628 | 9674bfe4 | Anthony Liguori | if (qdev_hotplug) {
|
629 | 9674bfe4 | Anthony Liguori | dev->hotplugged = 1;
|
630 | 9674bfe4 | Anthony Liguori | qdev_hot_added = true;
|
631 | 9674bfe4 | Anthony Liguori | } |
632 | 9674bfe4 | Anthony Liguori | |
633 | 9674bfe4 | Anthony Liguori | dev->instance_id_alias = -1;
|
634 | 9674bfe4 | Anthony Liguori | dev->state = DEV_STATE_CREATED; |
635 | 9674bfe4 | Anthony Liguori | |
636 | 9674bfe4 | Anthony Liguori | for (prop = qdev_get_props(dev); prop && prop->name; prop++) {
|
637 | 9674bfe4 | Anthony Liguori | qdev_property_add_legacy(dev, prop, NULL);
|
638 | 9674bfe4 | Anthony Liguori | qdev_property_add_static(dev, prop, NULL);
|
639 | 9674bfe4 | Anthony Liguori | } |
640 | 9674bfe4 | Anthony Liguori | |
641 | 57c9fafe | Anthony Liguori | object_property_add_str(OBJECT(dev), "type", qdev_get_type, NULL, NULL); |
642 | 4f2d3d70 | Paolo Bonzini | qdev_prop_set_defaults(dev, qdev_get_props(dev)); |
643 | 9674bfe4 | Anthony Liguori | } |
644 | 9674bfe4 | Anthony Liguori | |
645 | 60adba37 | Anthony Liguori | /* Unlink device from bus and free the structure. */
|
646 | 60adba37 | Anthony Liguori | static void device_finalize(Object *obj) |
647 | 60adba37 | Anthony Liguori | { |
648 | 60adba37 | Anthony Liguori | DeviceState *dev = DEVICE(obj); |
649 | 60adba37 | Anthony Liguori | BusState *bus; |
650 | 60adba37 | Anthony Liguori | DeviceClass *dc = DEVICE_GET_CLASS(dev); |
651 | 60adba37 | Anthony Liguori | |
652 | 60adba37 | Anthony Liguori | if (dev->state == DEV_STATE_INITIALIZED) {
|
653 | 60adba37 | Anthony Liguori | while (dev->num_child_bus) {
|
654 | 60adba37 | Anthony Liguori | bus = QLIST_FIRST(&dev->child_bus); |
655 | 60adba37 | Anthony Liguori | qbus_free(bus); |
656 | 60adba37 | Anthony Liguori | } |
657 | 60adba37 | Anthony Liguori | if (qdev_get_vmsd(dev)) {
|
658 | 60adba37 | Anthony Liguori | vmstate_unregister(dev, qdev_get_vmsd(dev), dev); |
659 | 60adba37 | Anthony Liguori | } |
660 | 60adba37 | Anthony Liguori | if (dc->exit) {
|
661 | 60adba37 | Anthony Liguori | dc->exit(dev); |
662 | 60adba37 | Anthony Liguori | } |
663 | 60adba37 | Anthony Liguori | if (dev->opts) {
|
664 | 60adba37 | Anthony Liguori | qemu_opts_del(dev->opts); |
665 | 60adba37 | Anthony Liguori | } |
666 | 60adba37 | Anthony Liguori | } |
667 | 60adba37 | Anthony Liguori | QTAILQ_REMOVE(&dev->parent_bus->children, dev, sibling); |
668 | 60adba37 | Anthony Liguori | } |
669 | 60adba37 | Anthony Liguori | |
670 | 94afdadc | Anthony Liguori | void device_reset(DeviceState *dev)
|
671 | 94afdadc | Anthony Liguori | { |
672 | 94afdadc | Anthony Liguori | DeviceClass *klass = DEVICE_GET_CLASS(dev); |
673 | 94afdadc | Anthony Liguori | |
674 | 94afdadc | Anthony Liguori | if (klass->reset) {
|
675 | 94afdadc | Anthony Liguori | klass->reset(dev); |
676 | 94afdadc | Anthony Liguori | } |
677 | 94afdadc | Anthony Liguori | } |
678 | 94afdadc | Anthony Liguori | |
679 | f05f6b4a | Paolo Bonzini | Object *qdev_get_machine(void)
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680 | f05f6b4a | Paolo Bonzini | { |
681 | f05f6b4a | Paolo Bonzini | static Object *dev;
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682 | f05f6b4a | Paolo Bonzini | |
683 | f05f6b4a | Paolo Bonzini | if (dev == NULL) { |
684 | dfe47e70 | Andreas Färber | dev = container_get(object_get_root(), "/machine");
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685 | f05f6b4a | Paolo Bonzini | } |
686 | f05f6b4a | Paolo Bonzini | |
687 | f05f6b4a | Paolo Bonzini | return dev;
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688 | f05f6b4a | Paolo Bonzini | } |
689 | f05f6b4a | Paolo Bonzini | |
690 | 32fea402 | Anthony Liguori | static TypeInfo device_type_info = {
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691 | 32fea402 | Anthony Liguori | .name = TYPE_DEVICE, |
692 | 32fea402 | Anthony Liguori | .parent = TYPE_OBJECT, |
693 | 32fea402 | Anthony Liguori | .instance_size = sizeof(DeviceState),
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694 | 9674bfe4 | Anthony Liguori | .instance_init = device_initfn, |
695 | 60adba37 | Anthony Liguori | .instance_finalize = device_finalize, |
696 | 32fea402 | Anthony Liguori | .abstract = true,
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697 | 32fea402 | Anthony Liguori | .class_size = sizeof(DeviceClass),
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698 | 32fea402 | Anthony Liguori | }; |
699 | 32fea402 | Anthony Liguori | |
700 | 83f7d43a | Andreas Färber | static void qdev_register_types(void) |
701 | 32fea402 | Anthony Liguori | { |
702 | 32fea402 | Anthony Liguori | type_register_static(&device_type_info); |
703 | 32fea402 | Anthony Liguori | } |
704 | 32fea402 | Anthony Liguori | |
705 | 83f7d43a | Andreas Färber | type_init(qdev_register_types) |