root / hw / qdev.c @ 15d7dc4f
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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 | cae4956e | Gerd Hoffmann | #include "monitor.h" |
32 | aae9460e | Paul Brook | |
33 | 3418bd25 | Gerd Hoffmann | static 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 | 4d6ae674 | Paul Brook | |
40 | 0958b4cc | Gerd Hoffmann | DeviceInfo *device_info_list; |
41 | aae9460e | Paul Brook | |
42 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
43 | 8ffb1bcf | Gerd Hoffmann | const BusInfo *info);
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44 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find(const char *path); |
45 | 8ffb1bcf | Gerd Hoffmann | |
46 | aae9460e | Paul Brook | /* Register a new device type. */
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47 | 074f2fff | Gerd Hoffmann | void qdev_register(DeviceInfo *info)
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48 | aae9460e | Paul Brook | { |
49 | 074f2fff | Gerd Hoffmann | assert(info->size >= sizeof(DeviceState));
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50 | 042f84d0 | Gerd Hoffmann | assert(!info->next); |
51 | aae9460e | Paul Brook | |
52 | 042f84d0 | Gerd Hoffmann | info->next = device_info_list; |
53 | 042f84d0 | Gerd Hoffmann | device_info_list = info; |
54 | aae9460e | Paul Brook | } |
55 | aae9460e | Paul Brook | |
56 | 81ebb98b | Gerd Hoffmann | static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name) |
57 | 81ebb98b | Gerd Hoffmann | { |
58 | 81ebb98b | Gerd Hoffmann | DeviceInfo *info; |
59 | 81ebb98b | Gerd Hoffmann | |
60 | 3320e56e | Gerd Hoffmann | /* first check device names */
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61 | 81ebb98b | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
62 | 81ebb98b | Gerd Hoffmann | if (bus_info && info->bus_info != bus_info)
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63 | 81ebb98b | Gerd Hoffmann | continue;
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64 | 81ebb98b | Gerd Hoffmann | if (strcmp(info->name, name) != 0) |
65 | 81ebb98b | Gerd Hoffmann | continue;
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66 | 81ebb98b | Gerd Hoffmann | return info;
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67 | 81ebb98b | Gerd Hoffmann | } |
68 | 3320e56e | Gerd Hoffmann | |
69 | 3320e56e | Gerd Hoffmann | /* failing that check the aliases */
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70 | 3320e56e | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
71 | 3320e56e | Gerd Hoffmann | if (bus_info && info->bus_info != bus_info)
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72 | 3320e56e | Gerd Hoffmann | continue;
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73 | 3320e56e | Gerd Hoffmann | if (!info->alias)
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74 | 3320e56e | Gerd Hoffmann | continue;
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75 | 3320e56e | Gerd Hoffmann | if (strcmp(info->alias, name) != 0) |
76 | 3320e56e | Gerd Hoffmann | continue;
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77 | 3320e56e | Gerd Hoffmann | return info;
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78 | 3320e56e | Gerd Hoffmann | } |
79 | 81ebb98b | Gerd Hoffmann | return NULL; |
80 | 81ebb98b | Gerd Hoffmann | } |
81 | 81ebb98b | Gerd Hoffmann | |
82 | 0c17542d | Markus Armbruster | static DeviceState *qdev_create_from_info(BusState *bus, DeviceInfo *info)
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83 | 0c17542d | Markus Armbruster | { |
84 | 0c17542d | Markus Armbruster | DeviceState *dev; |
85 | 0c17542d | Markus Armbruster | |
86 | 0c17542d | Markus Armbruster | assert(bus->info == info->bus_info); |
87 | 0c17542d | Markus Armbruster | dev = qemu_mallocz(info->size); |
88 | 0c17542d | Markus Armbruster | dev->info = info; |
89 | 0c17542d | Markus Armbruster | dev->parent_bus = bus; |
90 | 0c17542d | Markus Armbruster | qdev_prop_set_defaults(dev, dev->info->props); |
91 | 0c17542d | Markus Armbruster | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
92 | 0c17542d | Markus Armbruster | qdev_prop_set_globals(dev); |
93 | 0c17542d | Markus Armbruster | QLIST_INSERT_HEAD(&bus->children, dev, sibling); |
94 | 0c17542d | Markus Armbruster | if (qdev_hotplug) {
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95 | 0c17542d | Markus Armbruster | assert(bus->allow_hotplug); |
96 | 0c17542d | Markus Armbruster | dev->hotplugged = 1;
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97 | 0ac8ef71 | Alex Williamson | qdev_hot_added = true;
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98 | 0c17542d | Markus Armbruster | } |
99 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = -1;
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100 | 0c17542d | Markus Armbruster | dev->state = DEV_STATE_CREATED; |
101 | 0c17542d | Markus Armbruster | return dev;
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102 | 0c17542d | Markus Armbruster | } |
103 | 0c17542d | Markus Armbruster | |
104 | aae9460e | Paul Brook | /* Create a new device. This only initializes the device state structure
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105 | aae9460e | Paul Brook | and allows properties to be set. qdev_init should be called to
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106 | aae9460e | Paul Brook | initialize the actual device emulation. */
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107 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name) |
108 | aae9460e | Paul Brook | { |
109 | 0bcdeda7 | Blue Swirl | DeviceState *dev; |
110 | 0bcdeda7 | Blue Swirl | |
111 | 0bcdeda7 | Blue Swirl | dev = qdev_try_create(bus, name); |
112 | 0bcdeda7 | Blue Swirl | if (!dev) {
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113 | 0bcdeda7 | Blue Swirl | hw_error("Unknown device '%s' for bus '%s'\n", name, bus->info->name);
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114 | 0bcdeda7 | Blue Swirl | } |
115 | 0bcdeda7 | Blue Swirl | |
116 | 0bcdeda7 | Blue Swirl | return dev;
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117 | 0bcdeda7 | Blue Swirl | } |
118 | 0bcdeda7 | Blue Swirl | |
119 | 0bcdeda7 | Blue Swirl | DeviceState *qdev_try_create(BusState *bus, const char *name) |
120 | 0bcdeda7 | Blue Swirl | { |
121 | 042f84d0 | Gerd Hoffmann | DeviceInfo *info; |
122 | aae9460e | Paul Brook | |
123 | 10c4c98a | Gerd Hoffmann | if (!bus) {
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124 | 68694897 | Stefan Weil | bus = sysbus_get_default(); |
125 | 10c4c98a | Gerd Hoffmann | } |
126 | 10c4c98a | Gerd Hoffmann | |
127 | 81ebb98b | Gerd Hoffmann | info = qdev_find_info(bus->info, name); |
128 | 042f84d0 | Gerd Hoffmann | if (!info) {
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129 | 0bcdeda7 | Blue Swirl | return NULL; |
130 | aae9460e | Paul Brook | } |
131 | aae9460e | Paul Brook | |
132 | 0c17542d | Markus Armbruster | return qdev_create_from_info(bus, info);
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133 | aae9460e | Paul Brook | } |
134 | aae9460e | Paul Brook | |
135 | 8a9662ca | Markus Armbruster | static void qdev_print_devinfo(DeviceInfo *info) |
136 | 1b524b04 | Gerd Hoffmann | { |
137 | 8a9662ca | Markus Armbruster | error_printf("name \"%s\", bus %s",
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138 | 8a9662ca | Markus Armbruster | info->name, info->bus_info->name); |
139 | 22f2e344 | Gerd Hoffmann | if (info->alias) {
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140 | 8a9662ca | Markus Armbruster | error_printf(", alias \"%s\"", info->alias);
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141 | 22f2e344 | Gerd Hoffmann | } |
142 | 22f2e344 | Gerd Hoffmann | if (info->desc) {
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143 | 8a9662ca | Markus Armbruster | error_printf(", desc \"%s\"", info->desc);
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144 | 22f2e344 | Gerd Hoffmann | } |
145 | 22f2e344 | Gerd Hoffmann | if (info->no_user) {
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146 | 8a9662ca | Markus Armbruster | error_printf(", no-user");
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147 | 22f2e344 | Gerd Hoffmann | } |
148 | 8a9662ca | Markus Armbruster | error_printf("\n");
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149 | 1b524b04 | Gerd Hoffmann | } |
150 | 1b524b04 | Gerd Hoffmann | |
151 | f31d07d1 | Gerd Hoffmann | static int set_property(const char *name, const char *value, void *opaque) |
152 | 8ffb1bcf | Gerd Hoffmann | { |
153 | f31d07d1 | Gerd Hoffmann | DeviceState *dev = opaque; |
154 | f31d07d1 | Gerd Hoffmann | |
155 | f31d07d1 | Gerd Hoffmann | if (strcmp(name, "driver") == 0) |
156 | f31d07d1 | Gerd Hoffmann | return 0; |
157 | f31d07d1 | Gerd Hoffmann | if (strcmp(name, "bus") == 0) |
158 | f31d07d1 | Gerd Hoffmann | return 0; |
159 | f31d07d1 | Gerd Hoffmann | |
160 | 3df04ac3 | Mark McLoughlin | if (qdev_prop_parse(dev, name, value) == -1) { |
161 | f31d07d1 | Gerd Hoffmann | return -1; |
162 | f31d07d1 | Gerd Hoffmann | } |
163 | f31d07d1 | Gerd Hoffmann | return 0; |
164 | f31d07d1 | Gerd Hoffmann | } |
165 | f31d07d1 | Gerd Hoffmann | |
166 | ff952ba2 | Markus Armbruster | int qdev_device_help(QemuOpts *opts)
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167 | ff952ba2 | Markus Armbruster | { |
168 | ff952ba2 | Markus Armbruster | const char *driver; |
169 | ff952ba2 | Markus Armbruster | DeviceInfo *info; |
170 | 08350cf0 | Markus Armbruster | Property *prop; |
171 | ff952ba2 | Markus Armbruster | |
172 | ff952ba2 | Markus Armbruster | driver = qemu_opt_get(opts, "driver");
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173 | ff952ba2 | Markus Armbruster | if (driver && !strcmp(driver, "?")) { |
174 | ff952ba2 | Markus Armbruster | for (info = device_info_list; info != NULL; info = info->next) { |
175 | c64eafaf | Markus Armbruster | if (info->no_user) {
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176 | c64eafaf | Markus Armbruster | continue; /* not available, don't show */ |
177 | c64eafaf | Markus Armbruster | } |
178 | 8a9662ca | Markus Armbruster | qdev_print_devinfo(info); |
179 | ff952ba2 | Markus Armbruster | } |
180 | ff952ba2 | Markus Armbruster | return 1; |
181 | ff952ba2 | Markus Armbruster | } |
182 | ff952ba2 | Markus Armbruster | |
183 | 08350cf0 | Markus Armbruster | if (!qemu_opt_get(opts, "?")) { |
184 | 08350cf0 | Markus Armbruster | return 0; |
185 | 08350cf0 | Markus Armbruster | } |
186 | 08350cf0 | Markus Armbruster | |
187 | 08350cf0 | Markus Armbruster | info = qdev_find_info(NULL, driver);
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188 | 08350cf0 | Markus Armbruster | if (!info) {
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189 | 08350cf0 | Markus Armbruster | return 0; |
190 | 08350cf0 | Markus Armbruster | } |
191 | 08350cf0 | Markus Armbruster | |
192 | 08350cf0 | Markus Armbruster | for (prop = info->props; prop && prop->name; prop++) {
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193 | 036f7166 | Markus Armbruster | /*
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194 | 036f7166 | Markus Armbruster | * TODO Properties without a parser are just for dirty hacks.
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195 | 036f7166 | Markus Armbruster | * qdev_prop_ptr is the only such PropertyInfo. It's marked
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196 | 036f7166 | Markus Armbruster | * for removal. This conditional should be removed along with
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197 | 036f7166 | Markus Armbruster | * it.
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198 | 036f7166 | Markus Armbruster | */
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199 | 036f7166 | Markus Armbruster | if (!prop->info->parse) {
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200 | 036f7166 | Markus Armbruster | continue; /* no way to set it, don't show */ |
201 | 036f7166 | Markus Armbruster | } |
202 | 8a9662ca | Markus Armbruster | error_printf("%s.%s=%s\n", info->name, prop->name, prop->info->name);
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203 | 08350cf0 | Markus Armbruster | } |
204 | 08350cf0 | Markus Armbruster | return 1; |
205 | ff952ba2 | Markus Armbruster | } |
206 | ff952ba2 | Markus Armbruster | |
207 | f31d07d1 | Gerd Hoffmann | DeviceState *qdev_device_add(QemuOpts *opts) |
208 | f31d07d1 | Gerd Hoffmann | { |
209 | f31d07d1 | Gerd Hoffmann | const char *driver, *path, *id; |
210 | 8ffb1bcf | Gerd Hoffmann | DeviceInfo *info; |
211 | 8ffb1bcf | Gerd Hoffmann | DeviceState *qdev; |
212 | 8ffb1bcf | Gerd Hoffmann | BusState *bus; |
213 | 8ffb1bcf | Gerd Hoffmann | |
214 | f31d07d1 | Gerd Hoffmann | driver = qemu_opt_get(opts, "driver");
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215 | f31d07d1 | Gerd Hoffmann | if (!driver) {
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216 | 0204276b | Markus Armbruster | qerror_report(QERR_MISSING_PARAMETER, "driver");
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217 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
218 | 8ffb1bcf | Gerd Hoffmann | } |
219 | f31d07d1 | Gerd Hoffmann | |
220 | f31d07d1 | Gerd Hoffmann | /* find driver */
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221 | 8ffb1bcf | Gerd Hoffmann | info = qdev_find_info(NULL, driver);
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222 | c64eafaf | Markus Armbruster | if (!info || info->no_user) {
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223 | e17ba87c | Markus Armbruster | qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "a driver name"); |
224 | 0204276b | Markus Armbruster | error_printf_unless_qmp("Try with argument '?' for a list.\n");
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225 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
226 | 8ffb1bcf | Gerd Hoffmann | } |
227 | 8ffb1bcf | Gerd Hoffmann | |
228 | f31d07d1 | Gerd Hoffmann | /* find bus */
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229 | f31d07d1 | Gerd Hoffmann | path = qemu_opt_get(opts, "bus");
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230 | f31d07d1 | Gerd Hoffmann | if (path != NULL) { |
231 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find(path); |
232 | ac8dae67 | Markus Armbruster | if (!bus) {
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233 | ac8dae67 | Markus Armbruster | return NULL; |
234 | ac8dae67 | Markus Armbruster | } |
235 | ac8dae67 | Markus Armbruster | if (bus->info != info->bus_info) {
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236 | 0204276b | Markus Armbruster | qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
237 | 0204276b | Markus Armbruster | driver, bus->info->name); |
238 | 327867b6 | Markus Armbruster | return NULL; |
239 | 327867b6 | Markus Armbruster | } |
240 | 8ffb1bcf | Gerd Hoffmann | } else {
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241 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_recursive(main_system_bus, NULL, info->bus_info);
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242 | ac8dae67 | Markus Armbruster | if (!bus) {
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243 | 0204276b | Markus Armbruster | qerror_report(QERR_NO_BUS_FOR_DEVICE, |
244 | 0204276b | Markus Armbruster | info->name, info->bus_info->name); |
245 | ac8dae67 | Markus Armbruster | return NULL; |
246 | ac8dae67 | Markus Armbruster | } |
247 | 75570088 | Gerd Hoffmann | } |
248 | 3418bd25 | Gerd Hoffmann | if (qdev_hotplug && !bus->allow_hotplug) {
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249 | 0204276b | Markus Armbruster | qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
250 | 3418bd25 | Gerd Hoffmann | return NULL; |
251 | 3418bd25 | Gerd Hoffmann | } |
252 | 8ffb1bcf | Gerd Hoffmann | |
253 | f31d07d1 | Gerd Hoffmann | /* create device, set properties */
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254 | 0c17542d | Markus Armbruster | qdev = qdev_create_from_info(bus, info); |
255 | f31d07d1 | Gerd Hoffmann | id = qemu_opts_id(opts); |
256 | f31d07d1 | Gerd Hoffmann | if (id) {
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257 | f31d07d1 | Gerd Hoffmann | qdev->id = id; |
258 | f31d07d1 | Gerd Hoffmann | } |
259 | f31d07d1 | Gerd Hoffmann | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
260 | f31d07d1 | Gerd Hoffmann | qdev_free(qdev); |
261 | f31d07d1 | Gerd Hoffmann | return NULL; |
262 | 8ffb1bcf | Gerd Hoffmann | } |
263 | 5c17ca25 | Markus Armbruster | if (qdev_init(qdev) < 0) { |
264 | 0204276b | Markus Armbruster | qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
265 | 81a322d4 | Gerd Hoffmann | return NULL; |
266 | 81a322d4 | Gerd Hoffmann | } |
267 | ef80b466 | Gerd Hoffmann | qdev->opts = opts; |
268 | 8ffb1bcf | Gerd Hoffmann | return qdev;
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269 | 8ffb1bcf | Gerd Hoffmann | } |
270 | 8ffb1bcf | Gerd Hoffmann | |
271 | aae9460e | Paul Brook | /* Initialize a device. Device properties should be set before calling
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272 | aae9460e | Paul Brook | this function. IRQs and MMIO regions should be connected/mapped after
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273 | 18cfeb52 | Markus Armbruster | calling this function.
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274 | 18cfeb52 | Markus Armbruster | On failure, destroy the device and return negative value.
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275 | 18cfeb52 | Markus Armbruster | Return 0 on success. */
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276 | 81a322d4 | Gerd Hoffmann | int qdev_init(DeviceState *dev)
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277 | aae9460e | Paul Brook | { |
278 | 959f733a | Gerd Hoffmann | int rc;
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279 | 959f733a | Gerd Hoffmann | |
280 | 131ec1bd | Gerd Hoffmann | assert(dev->state == DEV_STATE_CREATED); |
281 | 959f733a | Gerd Hoffmann | rc = dev->info->init(dev, dev->info); |
282 | 18cfeb52 | Markus Armbruster | if (rc < 0) { |
283 | 18cfeb52 | Markus Armbruster | qdev_free(dev); |
284 | 959f733a | Gerd Hoffmann | return rc;
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285 | 18cfeb52 | Markus Armbruster | } |
286 | 4d2ffa08 | Jan Kiszka | if (dev->info->vmsd) {
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287 | 0be71e32 | Alex Williamson | vmstate_register_with_alias_id(dev, -1, dev->info->vmsd, dev,
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288 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias, |
289 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version); |
290 | 4d2ffa08 | Jan Kiszka | } |
291 | 131ec1bd | Gerd Hoffmann | dev->state = DEV_STATE_INITIALIZED; |
292 | 959f733a | Gerd Hoffmann | return 0; |
293 | 02e2da45 | Paul Brook | } |
294 | 02e2da45 | Paul Brook | |
295 | 4d2ffa08 | Jan Kiszka | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
296 | 4d2ffa08 | Jan Kiszka | int required_for_version)
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297 | 4d2ffa08 | Jan Kiszka | { |
298 | 4d2ffa08 | Jan Kiszka | assert(dev->state == DEV_STATE_CREATED); |
299 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = alias_id; |
300 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version = required_for_version; |
301 | 4d2ffa08 | Jan Kiszka | } |
302 | 4d2ffa08 | Jan Kiszka | |
303 | 3418bd25 | Gerd Hoffmann | int qdev_unplug(DeviceState *dev)
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304 | 3418bd25 | Gerd Hoffmann | { |
305 | 3418bd25 | Gerd Hoffmann | if (!dev->parent_bus->allow_hotplug) {
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306 | cc601cb7 | Markus Armbruster | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
307 | 3418bd25 | Gerd Hoffmann | return -1; |
308 | 3418bd25 | Gerd Hoffmann | } |
309 | 593831de | Amit Shah | assert(dev->info->unplug != NULL);
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310 | 593831de | Amit Shah | |
311 | 0ac8ef71 | Alex Williamson | qdev_hot_removed = true;
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312 | 0ac8ef71 | Alex Williamson | |
313 | 3418bd25 | Gerd Hoffmann | return dev->info->unplug(dev);
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314 | 3418bd25 | Gerd Hoffmann | } |
315 | 3418bd25 | Gerd Hoffmann | |
316 | ec990eb6 | Anthony Liguori | static int qdev_reset_one(DeviceState *dev, void *opaque) |
317 | ec990eb6 | Anthony Liguori | { |
318 | ec990eb6 | Anthony Liguori | if (dev->info->reset) {
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319 | ec990eb6 | Anthony Liguori | dev->info->reset(dev); |
320 | ec990eb6 | Anthony Liguori | } |
321 | ec990eb6 | Anthony Liguori | |
322 | ec990eb6 | Anthony Liguori | return 0; |
323 | ec990eb6 | Anthony Liguori | } |
324 | ec990eb6 | Anthony Liguori | |
325 | ec990eb6 | Anthony Liguori | BusState *sysbus_get_default(void)
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326 | ec990eb6 | Anthony Liguori | { |
327 | 68694897 | Stefan Weil | if (!main_system_bus) {
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328 | 68694897 | Stefan Weil | main_system_bus = qbus_create(&system_bus_info, NULL,
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329 | 68694897 | Stefan Weil | "main-system-bus");
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330 | 68694897 | Stefan Weil | } |
331 | ec990eb6 | Anthony Liguori | return main_system_bus;
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332 | ec990eb6 | Anthony Liguori | } |
333 | ec990eb6 | Anthony Liguori | |
334 | b4694b7c | Isaku Yamahata | static int qbus_reset_one(BusState *bus, void *opaque) |
335 | b4694b7c | Isaku Yamahata | { |
336 | b4694b7c | Isaku Yamahata | if (bus->info->reset) {
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337 | b4694b7c | Isaku Yamahata | return bus->info->reset(bus);
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338 | b4694b7c | Isaku Yamahata | } |
339 | b4694b7c | Isaku Yamahata | return 0; |
340 | b4694b7c | Isaku Yamahata | } |
341 | b4694b7c | Isaku Yamahata | |
342 | 5af0a04b | Isaku Yamahata | void qdev_reset_all(DeviceState *dev)
|
343 | 5af0a04b | Isaku Yamahata | { |
344 | 5af0a04b | Isaku Yamahata | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL);
|
345 | 5af0a04b | Isaku Yamahata | } |
346 | 5af0a04b | Isaku Yamahata | |
347 | 80376c3f | Isaku Yamahata | void qbus_reset_all_fn(void *opaque) |
348 | 80376c3f | Isaku Yamahata | { |
349 | 80376c3f | Isaku Yamahata | BusState *bus = opaque; |
350 | f530cce3 | Michael S. Tsirkin | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL);
|
351 | 80376c3f | Isaku Yamahata | } |
352 | 80376c3f | Isaku Yamahata | |
353 | 3418bd25 | Gerd Hoffmann | /* can be used as ->unplug() callback for the simple cases */
|
354 | 3418bd25 | Gerd Hoffmann | int qdev_simple_unplug_cb(DeviceState *dev)
|
355 | 3418bd25 | Gerd Hoffmann | { |
356 | 3418bd25 | Gerd Hoffmann | /* just zap it */
|
357 | 3418bd25 | Gerd Hoffmann | qdev_free(dev); |
358 | 3418bd25 | Gerd Hoffmann | return 0; |
359 | 3418bd25 | Gerd Hoffmann | } |
360 | 3418bd25 | Gerd Hoffmann | |
361 | e23a1b33 | Markus Armbruster | /* Like qdev_init(), but terminate program via hw_error() instead of
|
362 | e23a1b33 | Markus Armbruster | returning an error value. This is okay during machine creation.
|
363 | e23a1b33 | Markus Armbruster | Don't use for hotplug, because there callers need to recover from
|
364 | e23a1b33 | Markus Armbruster | failure. Exception: if you know the device's init() callback can't
|
365 | e23a1b33 | Markus Armbruster | fail, then qdev_init_nofail() can't fail either, and is therefore
|
366 | e23a1b33 | Markus Armbruster | usable even then. But relying on the device implementation that
|
367 | e23a1b33 | Markus Armbruster | way is somewhat unclean, and best avoided. */
|
368 | e23a1b33 | Markus Armbruster | void qdev_init_nofail(DeviceState *dev)
|
369 | e23a1b33 | Markus Armbruster | { |
370 | e23a1b33 | Markus Armbruster | DeviceInfo *info = dev->info; |
371 | e23a1b33 | Markus Armbruster | |
372 | bd6c9a61 | Markus Armbruster | if (qdev_init(dev) < 0) { |
373 | bd6c9a61 | Markus Armbruster | error_report("Initialization of device %s failed\n", info->name);
|
374 | bd6c9a61 | Markus Armbruster | exit(1);
|
375 | bd6c9a61 | Markus Armbruster | } |
376 | e23a1b33 | Markus Armbruster | } |
377 | e23a1b33 | Markus Armbruster | |
378 | 02e2da45 | Paul Brook | /* Unlink device from bus and free the structure. */
|
379 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev)
|
380 | 02e2da45 | Paul Brook | { |
381 | 131ec1bd | Gerd Hoffmann | BusState *bus; |
382 | d21357df | Markus Armbruster | Property *prop; |
383 | 131ec1bd | Gerd Hoffmann | |
384 | 131ec1bd | Gerd Hoffmann | if (dev->state == DEV_STATE_INITIALIZED) {
|
385 | 131ec1bd | Gerd Hoffmann | while (dev->num_child_bus) {
|
386 | 131ec1bd | Gerd Hoffmann | bus = QLIST_FIRST(&dev->child_bus); |
387 | 131ec1bd | Gerd Hoffmann | qbus_free(bus); |
388 | 131ec1bd | Gerd Hoffmann | } |
389 | 131ec1bd | Gerd Hoffmann | if (dev->info->vmsd)
|
390 | 0be71e32 | Alex Williamson | vmstate_unregister(dev, dev->info->vmsd, dev); |
391 | d29275f1 | Gerd Hoffmann | if (dev->info->exit)
|
392 | d29275f1 | Gerd Hoffmann | dev->info->exit(dev); |
393 | ef80b466 | Gerd Hoffmann | if (dev->opts)
|
394 | ef80b466 | Gerd Hoffmann | qemu_opts_del(dev->opts); |
395 | 131ec1bd | Gerd Hoffmann | } |
396 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(dev, sibling); |
397 | d21357df | Markus Armbruster | for (prop = dev->info->props; prop && prop->name; prop++) {
|
398 | d21357df | Markus Armbruster | if (prop->info->free) {
|
399 | d21357df | Markus Armbruster | prop->info->free(dev, prop); |
400 | d21357df | Markus Armbruster | } |
401 | d21357df | Markus Armbruster | } |
402 | ccb63de3 | Gerd Hoffmann | qemu_free(dev); |
403 | aae9460e | Paul Brook | } |
404 | aae9460e | Paul Brook | |
405 | 3418bd25 | Gerd Hoffmann | void qdev_machine_creation_done(void) |
406 | 3418bd25 | Gerd Hoffmann | { |
407 | 3418bd25 | Gerd Hoffmann | /*
|
408 | 3418bd25 | Gerd Hoffmann | * ok, initial machine setup is done, starting from now we can
|
409 | 3418bd25 | Gerd Hoffmann | * only create hotpluggable devices
|
410 | 3418bd25 | Gerd Hoffmann | */
|
411 | 3418bd25 | Gerd Hoffmann | qdev_hotplug = 1;
|
412 | 3418bd25 | Gerd Hoffmann | } |
413 | 3418bd25 | Gerd Hoffmann | |
414 | 0ac8ef71 | Alex Williamson | bool qdev_machine_modified(void) |
415 | 0ac8ef71 | Alex Williamson | { |
416 | 0ac8ef71 | Alex Williamson | return qdev_hot_added || qdev_hot_removed;
|
417 | 0ac8ef71 | Alex Williamson | } |
418 | 0ac8ef71 | Alex Williamson | |
419 | aae9460e | Paul Brook | /* Get a character (serial) device interface. */
|
420 | aae9460e | Paul Brook | CharDriverState *qdev_init_chardev(DeviceState *dev) |
421 | aae9460e | Paul Brook | { |
422 | aae9460e | Paul Brook | static int next_serial; |
423 | 98b19252 | Amit Shah | |
424 | 98b19252 | Amit Shah | /* FIXME: This function needs to go away: use chardev properties! */
|
425 | 98b19252 | Amit Shah | return serial_hds[next_serial++];
|
426 | aae9460e | Paul Brook | } |
427 | aae9460e | Paul Brook | |
428 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev) |
429 | aae9460e | Paul Brook | { |
430 | 02e2da45 | Paul Brook | return dev->parent_bus;
|
431 | aae9460e | Paul Brook | } |
432 | aae9460e | Paul Brook | |
433 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
434 | aae9460e | Paul Brook | { |
435 | aae9460e | Paul Brook | assert(dev->num_gpio_in == 0);
|
436 | aae9460e | Paul Brook | dev->num_gpio_in = n; |
437 | aae9460e | Paul Brook | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); |
438 | aae9460e | Paul Brook | } |
439 | aae9460e | Paul Brook | |
440 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
441 | aae9460e | Paul Brook | { |
442 | aae9460e | Paul Brook | assert(dev->num_gpio_out == 0);
|
443 | aae9460e | Paul Brook | dev->num_gpio_out = n; |
444 | aae9460e | Paul Brook | dev->gpio_out = pins; |
445 | aae9460e | Paul Brook | } |
446 | aae9460e | Paul Brook | |
447 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
|
448 | aae9460e | Paul Brook | { |
449 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_in);
|
450 | aae9460e | Paul Brook | return dev->gpio_in[n];
|
451 | aae9460e | Paul Brook | } |
452 | aae9460e | Paul Brook | |
453 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
454 | aae9460e | Paul Brook | { |
455 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_out);
|
456 | aae9460e | Paul Brook | dev->gpio_out[n] = pin; |
457 | aae9460e | Paul Brook | } |
458 | aae9460e | Paul Brook | |
459 | ed16ab5a | Gerd Hoffmann | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd)
|
460 | ed16ab5a | Gerd Hoffmann | { |
461 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_macaddr(dev, "mac", nd->macaddr);
|
462 | ed16ab5a | Gerd Hoffmann | if (nd->vlan)
|
463 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_vlan(dev, "vlan", nd->vlan);
|
464 | ed16ab5a | Gerd Hoffmann | if (nd->netdev)
|
465 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_netdev(dev, "netdev", nd->netdev);
|
466 | 75422b0d | Amit Shah | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
|
467 | 97b15621 | Gerd Hoffmann | qdev_prop_exists(dev, "vectors")) {
|
468 | 97b15621 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "vectors", nd->nvectors);
|
469 | 97b15621 | Gerd Hoffmann | } |
470 | ed16ab5a | Gerd Hoffmann | } |
471 | ed16ab5a | Gerd Hoffmann | |
472 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
473 | 4d6ae674 | Paul Brook | { |
474 | 02e2da45 | Paul Brook | BusState *bus; |
475 | 4d6ae674 | Paul Brook | |
476 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
477 | 4d6ae674 | Paul Brook | if (strcmp(name, bus->name) == 0) { |
478 | 02e2da45 | Paul Brook | return bus;
|
479 | 4d6ae674 | Paul Brook | } |
480 | 4d6ae674 | Paul Brook | } |
481 | 4d6ae674 | Paul Brook | return NULL; |
482 | 4d6ae674 | Paul Brook | } |
483 | 4d6ae674 | Paul Brook | |
484 | 81699d8a | Anthony Liguori | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
|
485 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
486 | 81699d8a | Anthony Liguori | { |
487 | 81699d8a | Anthony Liguori | DeviceState *dev; |
488 | 81699d8a | Anthony Liguori | int err;
|
489 | 81699d8a | Anthony Liguori | |
490 | 81699d8a | Anthony Liguori | if (busfn) {
|
491 | 81699d8a | Anthony Liguori | err = busfn(bus, opaque); |
492 | 81699d8a | Anthony Liguori | if (err) {
|
493 | 81699d8a | Anthony Liguori | return err;
|
494 | 81699d8a | Anthony Liguori | } |
495 | 81699d8a | Anthony Liguori | } |
496 | 81699d8a | Anthony Liguori | |
497 | 81699d8a | Anthony Liguori | QLIST_FOREACH(dev, &bus->children, sibling) { |
498 | 81699d8a | Anthony Liguori | err = qdev_walk_children(dev, devfn, busfn, opaque); |
499 | 81699d8a | Anthony Liguori | if (err < 0) { |
500 | 81699d8a | Anthony Liguori | return err;
|
501 | 81699d8a | Anthony Liguori | } |
502 | 81699d8a | Anthony Liguori | } |
503 | 81699d8a | Anthony Liguori | |
504 | 81699d8a | Anthony Liguori | return 0; |
505 | 81699d8a | Anthony Liguori | } |
506 | 81699d8a | Anthony Liguori | |
507 | 81699d8a | Anthony Liguori | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
|
508 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
509 | 81699d8a | Anthony Liguori | { |
510 | 81699d8a | Anthony Liguori | BusState *bus; |
511 | 81699d8a | Anthony Liguori | int err;
|
512 | 81699d8a | Anthony Liguori | |
513 | 81699d8a | Anthony Liguori | if (devfn) {
|
514 | 81699d8a | Anthony Liguori | err = devfn(dev, opaque); |
515 | 81699d8a | Anthony Liguori | if (err) {
|
516 | 81699d8a | Anthony Liguori | return err;
|
517 | 81699d8a | Anthony Liguori | } |
518 | 81699d8a | Anthony Liguori | } |
519 | 81699d8a | Anthony Liguori | |
520 | 81699d8a | Anthony Liguori | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
521 | 81699d8a | Anthony Liguori | err = qbus_walk_children(bus, devfn, busfn, opaque); |
522 | 81699d8a | Anthony Liguori | if (err < 0) { |
523 | 81699d8a | Anthony Liguori | return err;
|
524 | 81699d8a | Anthony Liguori | } |
525 | 81699d8a | Anthony Liguori | } |
526 | 81699d8a | Anthony Liguori | |
527 | 81699d8a | Anthony Liguori | return 0; |
528 | 81699d8a | Anthony Liguori | } |
529 | 81699d8a | Anthony Liguori | |
530 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
531 | 8ffb1bcf | Gerd Hoffmann | const BusInfo *info)
|
532 | 8ffb1bcf | Gerd Hoffmann | { |
533 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
534 | 8ffb1bcf | Gerd Hoffmann | BusState *child, *ret; |
535 | 8ffb1bcf | Gerd Hoffmann | int match = 1; |
536 | 8ffb1bcf | Gerd Hoffmann | |
537 | 8ffb1bcf | Gerd Hoffmann | if (name && (strcmp(bus->name, name) != 0)) { |
538 | 8ffb1bcf | Gerd Hoffmann | match = 0;
|
539 | 8ffb1bcf | Gerd Hoffmann | } |
540 | 8ffb1bcf | Gerd Hoffmann | if (info && (bus->info != info)) {
|
541 | 8ffb1bcf | Gerd Hoffmann | match = 0;
|
542 | 8ffb1bcf | Gerd Hoffmann | } |
543 | 8ffb1bcf | Gerd Hoffmann | if (match) {
|
544 | 8ffb1bcf | Gerd Hoffmann | return bus;
|
545 | 8ffb1bcf | Gerd Hoffmann | } |
546 | 8ffb1bcf | Gerd Hoffmann | |
547 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
548 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
549 | 8ffb1bcf | Gerd Hoffmann | ret = qbus_find_recursive(child, name, info); |
550 | 8ffb1bcf | Gerd Hoffmann | if (ret) {
|
551 | 8ffb1bcf | Gerd Hoffmann | return ret;
|
552 | 8ffb1bcf | Gerd Hoffmann | } |
553 | 8ffb1bcf | Gerd Hoffmann | } |
554 | 8ffb1bcf | Gerd Hoffmann | } |
555 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
556 | 8ffb1bcf | Gerd Hoffmann | } |
557 | 8ffb1bcf | Gerd Hoffmann | |
558 | a2ee6b4f | Isaku Yamahata | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
559 | 3418bd25 | Gerd Hoffmann | { |
560 | 3418bd25 | Gerd Hoffmann | DeviceState *dev, *ret; |
561 | 3418bd25 | Gerd Hoffmann | BusState *child; |
562 | 3418bd25 | Gerd Hoffmann | |
563 | 3418bd25 | Gerd Hoffmann | QLIST_FOREACH(dev, &bus->children, sibling) { |
564 | 3418bd25 | Gerd Hoffmann | if (dev->id && strcmp(dev->id, id) == 0) |
565 | 3418bd25 | Gerd Hoffmann | return dev;
|
566 | 3418bd25 | Gerd Hoffmann | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
567 | 3418bd25 | Gerd Hoffmann | ret = qdev_find_recursive(child, id); |
568 | 3418bd25 | Gerd Hoffmann | if (ret) {
|
569 | 3418bd25 | Gerd Hoffmann | return ret;
|
570 | 3418bd25 | Gerd Hoffmann | } |
571 | 3418bd25 | Gerd Hoffmann | } |
572 | 3418bd25 | Gerd Hoffmann | } |
573 | 3418bd25 | Gerd Hoffmann | return NULL; |
574 | 3418bd25 | Gerd Hoffmann | } |
575 | 3418bd25 | Gerd Hoffmann | |
576 | 53db16b5 | Markus Armbruster | static void qbus_list_bus(DeviceState *dev) |
577 | 8ffb1bcf | Gerd Hoffmann | { |
578 | 8ffb1bcf | Gerd Hoffmann | BusState *child; |
579 | 8ffb1bcf | Gerd Hoffmann | const char *sep = " "; |
580 | 8ffb1bcf | Gerd Hoffmann | |
581 | 53db16b5 | Markus Armbruster | error_printf("child busses at \"%s\":",
|
582 | 53db16b5 | Markus Armbruster | dev->id ? dev->id : dev->info->name); |
583 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
584 | 53db16b5 | Markus Armbruster | error_printf("%s\"%s\"", sep, child->name);
|
585 | 8ffb1bcf | Gerd Hoffmann | sep = ", ";
|
586 | 8ffb1bcf | Gerd Hoffmann | } |
587 | 53db16b5 | Markus Armbruster | error_printf("\n");
|
588 | 8ffb1bcf | Gerd Hoffmann | } |
589 | 8ffb1bcf | Gerd Hoffmann | |
590 | 53db16b5 | Markus Armbruster | static void qbus_list_dev(BusState *bus) |
591 | 8ffb1bcf | Gerd Hoffmann | { |
592 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
593 | 8ffb1bcf | Gerd Hoffmann | const char *sep = " "; |
594 | 8ffb1bcf | Gerd Hoffmann | |
595 | 53db16b5 | Markus Armbruster | error_printf("devices at \"%s\":", bus->name);
|
596 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
597 | 53db16b5 | Markus Armbruster | error_printf("%s\"%s\"", sep, dev->info->name);
|
598 | 8ffb1bcf | Gerd Hoffmann | if (dev->id)
|
599 | 53db16b5 | Markus Armbruster | error_printf("/\"%s\"", dev->id);
|
600 | 8ffb1bcf | Gerd Hoffmann | sep = ", ";
|
601 | 8ffb1bcf | Gerd Hoffmann | } |
602 | 53db16b5 | Markus Armbruster | error_printf("\n");
|
603 | 8ffb1bcf | Gerd Hoffmann | } |
604 | 8ffb1bcf | Gerd Hoffmann | |
605 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_bus(DeviceState *dev, char *elem) |
606 | 8ffb1bcf | Gerd Hoffmann | { |
607 | 8ffb1bcf | Gerd Hoffmann | BusState *child; |
608 | 8ffb1bcf | Gerd Hoffmann | |
609 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
610 | 8ffb1bcf | Gerd Hoffmann | if (strcmp(child->name, elem) == 0) { |
611 | 8ffb1bcf | Gerd Hoffmann | return child;
|
612 | 8ffb1bcf | Gerd Hoffmann | } |
613 | 8ffb1bcf | Gerd Hoffmann | } |
614 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
615 | 8ffb1bcf | Gerd Hoffmann | } |
616 | 8ffb1bcf | Gerd Hoffmann | |
617 | 8ffb1bcf | Gerd Hoffmann | static DeviceState *qbus_find_dev(BusState *bus, char *elem) |
618 | 8ffb1bcf | Gerd Hoffmann | { |
619 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
620 | 8ffb1bcf | Gerd Hoffmann | |
621 | 8ffb1bcf | Gerd Hoffmann | /*
|
622 | 8ffb1bcf | Gerd Hoffmann | * try to match in order:
|
623 | 8ffb1bcf | Gerd Hoffmann | * (1) instance id, if present
|
624 | 8ffb1bcf | Gerd Hoffmann | * (2) driver name
|
625 | 8ffb1bcf | Gerd Hoffmann | * (3) driver alias, if present
|
626 | 8ffb1bcf | Gerd Hoffmann | */
|
627 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
628 | 8ffb1bcf | Gerd Hoffmann | if (dev->id && strcmp(dev->id, elem) == 0) { |
629 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
630 | 8ffb1bcf | Gerd Hoffmann | } |
631 | 8ffb1bcf | Gerd Hoffmann | } |
632 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
633 | 8ffb1bcf | Gerd Hoffmann | if (strcmp(dev->info->name, elem) == 0) { |
634 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
635 | 8ffb1bcf | Gerd Hoffmann | } |
636 | 8ffb1bcf | Gerd Hoffmann | } |
637 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
638 | 8ffb1bcf | Gerd Hoffmann | if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) { |
639 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
640 | 8ffb1bcf | Gerd Hoffmann | } |
641 | 8ffb1bcf | Gerd Hoffmann | } |
642 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
643 | 8ffb1bcf | Gerd Hoffmann | } |
644 | 8ffb1bcf | Gerd Hoffmann | |
645 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find(const char *path) |
646 | 8ffb1bcf | Gerd Hoffmann | { |
647 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
648 | 8ffb1bcf | Gerd Hoffmann | BusState *bus; |
649 | 53db16b5 | Markus Armbruster | char elem[128]; |
650 | 8ffb1bcf | Gerd Hoffmann | int pos, len;
|
651 | 8ffb1bcf | Gerd Hoffmann | |
652 | 8ffb1bcf | Gerd Hoffmann | /* find start element */
|
653 | 8ffb1bcf | Gerd Hoffmann | if (path[0] == '/') { |
654 | 8ffb1bcf | Gerd Hoffmann | bus = main_system_bus; |
655 | 8ffb1bcf | Gerd Hoffmann | pos = 0;
|
656 | 8ffb1bcf | Gerd Hoffmann | } else {
|
657 | 8ffb1bcf | Gerd Hoffmann | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { |
658 | fc98eb43 | Markus Armbruster | assert(!path[0]);
|
659 | fc98eb43 | Markus Armbruster | elem[0] = len = 0; |
660 | 8ffb1bcf | Gerd Hoffmann | } |
661 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_recursive(main_system_bus, elem, NULL);
|
662 | 8ffb1bcf | Gerd Hoffmann | if (!bus) {
|
663 | ac8dae67 | Markus Armbruster | qerror_report(QERR_BUS_NOT_FOUND, elem); |
664 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
665 | 8ffb1bcf | Gerd Hoffmann | } |
666 | 8ffb1bcf | Gerd Hoffmann | pos = len; |
667 | 8ffb1bcf | Gerd Hoffmann | } |
668 | 8ffb1bcf | Gerd Hoffmann | |
669 | 8ffb1bcf | Gerd Hoffmann | for (;;) {
|
670 | fc98eb43 | Markus Armbruster | assert(path[pos] == '/' || !path[pos]);
|
671 | fc98eb43 | Markus Armbruster | while (path[pos] == '/') { |
672 | fc98eb43 | Markus Armbruster | pos++; |
673 | fc98eb43 | Markus Armbruster | } |
674 | 8ffb1bcf | Gerd Hoffmann | if (path[pos] == '\0') { |
675 | 8ffb1bcf | Gerd Hoffmann | return bus;
|
676 | 8ffb1bcf | Gerd Hoffmann | } |
677 | 8ffb1bcf | Gerd Hoffmann | |
678 | 8ffb1bcf | Gerd Hoffmann | /* find device */
|
679 | fc98eb43 | Markus Armbruster | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
680 | fc98eb43 | Markus Armbruster | assert(0);
|
681 | fc98eb43 | Markus Armbruster | elem[0] = len = 0; |
682 | 8ffb1bcf | Gerd Hoffmann | } |
683 | 8ffb1bcf | Gerd Hoffmann | pos += len; |
684 | 8ffb1bcf | Gerd Hoffmann | dev = qbus_find_dev(bus, elem); |
685 | 8ffb1bcf | Gerd Hoffmann | if (!dev) {
|
686 | ac8dae67 | Markus Armbruster | qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
687 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp()) {
|
688 | 8bc27249 | Markus Armbruster | qbus_list_dev(bus); |
689 | 8bc27249 | Markus Armbruster | } |
690 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
691 | 8ffb1bcf | Gerd Hoffmann | } |
692 | fc98eb43 | Markus Armbruster | |
693 | fc98eb43 | Markus Armbruster | assert(path[pos] == '/' || !path[pos]);
|
694 | fc98eb43 | Markus Armbruster | while (path[pos] == '/') { |
695 | fc98eb43 | Markus Armbruster | pos++; |
696 | fc98eb43 | Markus Armbruster | } |
697 | 8ffb1bcf | Gerd Hoffmann | if (path[pos] == '\0') { |
698 | 8ffb1bcf | Gerd Hoffmann | /* last specified element is a device. If it has exactly
|
699 | 8ffb1bcf | Gerd Hoffmann | * one child bus accept it nevertheless */
|
700 | 8ffb1bcf | Gerd Hoffmann | switch (dev->num_child_bus) {
|
701 | 8ffb1bcf | Gerd Hoffmann | case 0: |
702 | ac8dae67 | Markus Armbruster | qerror_report(QERR_DEVICE_NO_BUS, elem); |
703 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
704 | 8ffb1bcf | Gerd Hoffmann | case 1: |
705 | 72cf2d4f | Blue Swirl | return QLIST_FIRST(&dev->child_bus);
|
706 | 8ffb1bcf | Gerd Hoffmann | default:
|
707 | ac8dae67 | Markus Armbruster | qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
708 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp()) {
|
709 | 8bc27249 | Markus Armbruster | qbus_list_bus(dev); |
710 | 8bc27249 | Markus Armbruster | } |
711 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
712 | 8ffb1bcf | Gerd Hoffmann | } |
713 | 8ffb1bcf | Gerd Hoffmann | } |
714 | 8ffb1bcf | Gerd Hoffmann | |
715 | 8ffb1bcf | Gerd Hoffmann | /* find bus */
|
716 | fc98eb43 | Markus Armbruster | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
717 | fc98eb43 | Markus Armbruster | assert(0);
|
718 | fc98eb43 | Markus Armbruster | elem[0] = len = 0; |
719 | 8ffb1bcf | Gerd Hoffmann | } |
720 | 8ffb1bcf | Gerd Hoffmann | pos += len; |
721 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_bus(dev, elem); |
722 | 8ffb1bcf | Gerd Hoffmann | if (!bus) {
|
723 | ac8dae67 | Markus Armbruster | qerror_report(QERR_BUS_NOT_FOUND, elem); |
724 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp()) {
|
725 | 8bc27249 | Markus Armbruster | qbus_list_bus(dev); |
726 | 8bc27249 | Markus Armbruster | } |
727 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
728 | 8ffb1bcf | Gerd Hoffmann | } |
729 | 8ffb1bcf | Gerd Hoffmann | } |
730 | 8ffb1bcf | Gerd Hoffmann | } |
731 | 8ffb1bcf | Gerd Hoffmann | |
732 | cd739fb6 | Gerd Hoffmann | void qbus_create_inplace(BusState *bus, BusInfo *info,
|
733 | cd739fb6 | Gerd Hoffmann | DeviceState *parent, const char *name) |
734 | 02e2da45 | Paul Brook | { |
735 | d271de9f | Gerd Hoffmann | char *buf;
|
736 | d271de9f | Gerd Hoffmann | int i,len;
|
737 | 02e2da45 | Paul Brook | |
738 | 10c4c98a | Gerd Hoffmann | bus->info = info; |
739 | 02e2da45 | Paul Brook | bus->parent = parent; |
740 | d271de9f | Gerd Hoffmann | |
741 | d271de9f | Gerd Hoffmann | if (name) {
|
742 | d271de9f | Gerd Hoffmann | /* use supplied name */
|
743 | d271de9f | Gerd Hoffmann | bus->name = qemu_strdup(name); |
744 | d271de9f | Gerd Hoffmann | } else if (parent && parent->id) { |
745 | d271de9f | Gerd Hoffmann | /* parent device has id -> use it for bus name */
|
746 | d271de9f | Gerd Hoffmann | len = strlen(parent->id) + 16;
|
747 | d271de9f | Gerd Hoffmann | buf = qemu_malloc(len); |
748 | d271de9f | Gerd Hoffmann | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus);
|
749 | d271de9f | Gerd Hoffmann | bus->name = buf; |
750 | d271de9f | Gerd Hoffmann | } else {
|
751 | d271de9f | Gerd Hoffmann | /* no id -> use lowercase bus type for bus name */
|
752 | d271de9f | Gerd Hoffmann | len = strlen(info->name) + 16;
|
753 | d271de9f | Gerd Hoffmann | buf = qemu_malloc(len); |
754 | d271de9f | Gerd Hoffmann | len = snprintf(buf, len, "%s.%d", info->name,
|
755 | d271de9f | Gerd Hoffmann | parent ? parent->num_child_bus : 0);
|
756 | d271de9f | Gerd Hoffmann | for (i = 0; i < len; i++) |
757 | bb87ece5 | Christoph Egger | buf[i] = qemu_tolower(buf[i]); |
758 | d271de9f | Gerd Hoffmann | bus->name = buf; |
759 | d271de9f | Gerd Hoffmann | } |
760 | d271de9f | Gerd Hoffmann | |
761 | 72cf2d4f | Blue Swirl | QLIST_INIT(&bus->children); |
762 | 02e2da45 | Paul Brook | if (parent) {
|
763 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
764 | d271de9f | Gerd Hoffmann | parent->num_child_bus++; |
765 | 80376c3f | Isaku Yamahata | } else if (bus != main_system_bus) { |
766 | 80376c3f | Isaku Yamahata | /* TODO: once all bus devices are qdevified,
|
767 | 80376c3f | Isaku Yamahata | only reset handler for main_system_bus should be registered here. */
|
768 | 80376c3f | Isaku Yamahata | qemu_register_reset(qbus_reset_all_fn, bus); |
769 | 02e2da45 | Paul Brook | } |
770 | cd739fb6 | Gerd Hoffmann | } |
771 | cd739fb6 | Gerd Hoffmann | |
772 | cd739fb6 | Gerd Hoffmann | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) |
773 | cd739fb6 | Gerd Hoffmann | { |
774 | cd739fb6 | Gerd Hoffmann | BusState *bus; |
775 | cd739fb6 | Gerd Hoffmann | |
776 | cd739fb6 | Gerd Hoffmann | bus = qemu_mallocz(info->size); |
777 | cd739fb6 | Gerd Hoffmann | bus->qdev_allocated = 1;
|
778 | cd739fb6 | Gerd Hoffmann | qbus_create_inplace(bus, info, parent, name); |
779 | 02e2da45 | Paul Brook | return bus;
|
780 | 02e2da45 | Paul Brook | } |
781 | cae4956e | Gerd Hoffmann | |
782 | 131ec1bd | Gerd Hoffmann | void qbus_free(BusState *bus)
|
783 | 131ec1bd | Gerd Hoffmann | { |
784 | 131ec1bd | Gerd Hoffmann | DeviceState *dev; |
785 | 131ec1bd | Gerd Hoffmann | |
786 | 131ec1bd | Gerd Hoffmann | while ((dev = QLIST_FIRST(&bus->children)) != NULL) { |
787 | 131ec1bd | Gerd Hoffmann | qdev_free(dev); |
788 | 131ec1bd | Gerd Hoffmann | } |
789 | 131ec1bd | Gerd Hoffmann | if (bus->parent) {
|
790 | 131ec1bd | Gerd Hoffmann | QLIST_REMOVE(bus, sibling); |
791 | 131ec1bd | Gerd Hoffmann | bus->parent->num_child_bus--; |
792 | 80376c3f | Isaku Yamahata | } else {
|
793 | 80376c3f | Isaku Yamahata | assert(bus != main_system_bus); /* main_system_bus is never freed */
|
794 | 80376c3f | Isaku Yamahata | qemu_unregister_reset(qbus_reset_all_fn, bus); |
795 | 131ec1bd | Gerd Hoffmann | } |
796 | e163ae7b | Isaku Yamahata | qemu_free((void*)bus->name);
|
797 | 131ec1bd | Gerd Hoffmann | if (bus->qdev_allocated) {
|
798 | 131ec1bd | Gerd Hoffmann | qemu_free(bus); |
799 | 131ec1bd | Gerd Hoffmann | } |
800 | 131ec1bd | Gerd Hoffmann | } |
801 | 131ec1bd | Gerd Hoffmann | |
802 | cae4956e | Gerd Hoffmann | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
803 | cae4956e | Gerd Hoffmann | static void qbus_print(Monitor *mon, BusState *bus, int indent); |
804 | cae4956e | Gerd Hoffmann | |
805 | ee6847d1 | Gerd Hoffmann | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
806 | ee6847d1 | Gerd Hoffmann | const char *prefix, int indent) |
807 | ee6847d1 | Gerd Hoffmann | { |
808 | ee6847d1 | Gerd Hoffmann | char buf[64]; |
809 | ee6847d1 | Gerd Hoffmann | |
810 | ee6847d1 | Gerd Hoffmann | if (!props)
|
811 | ee6847d1 | Gerd Hoffmann | return;
|
812 | ee6847d1 | Gerd Hoffmann | while (props->name) {
|
813 | 036f7166 | Markus Armbruster | /*
|
814 | 036f7166 | Markus Armbruster | * TODO Properties without a print method are just for dirty
|
815 | 036f7166 | Markus Armbruster | * hacks. qdev_prop_ptr is the only such PropertyInfo. It's
|
816 | 036f7166 | Markus Armbruster | * marked for removal. The test props->info->print should be
|
817 | 036f7166 | Markus Armbruster | * removed along with it.
|
818 | 036f7166 | Markus Armbruster | */
|
819 | ee6847d1 | Gerd Hoffmann | if (props->info->print) {
|
820 | ee6847d1 | Gerd Hoffmann | props->info->print(dev, props, buf, sizeof(buf));
|
821 | ee6847d1 | Gerd Hoffmann | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf);
|
822 | ee6847d1 | Gerd Hoffmann | } |
823 | ee6847d1 | Gerd Hoffmann | props++; |
824 | ee6847d1 | Gerd Hoffmann | } |
825 | ee6847d1 | Gerd Hoffmann | } |
826 | ee6847d1 | Gerd Hoffmann | |
827 | cae4956e | Gerd Hoffmann | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
828 | cae4956e | Gerd Hoffmann | { |
829 | cae4956e | Gerd Hoffmann | BusState *child; |
830 | ccb63de3 | Gerd Hoffmann | qdev_printf("dev: %s, id \"%s\"\n", dev->info->name,
|
831 | ccb63de3 | Gerd Hoffmann | dev->id ? dev->id : "");
|
832 | cae4956e | Gerd Hoffmann | indent += 2;
|
833 | cae4956e | Gerd Hoffmann | if (dev->num_gpio_in) {
|
834 | cae4956e | Gerd Hoffmann | qdev_printf("gpio-in %d\n", dev->num_gpio_in);
|
835 | cae4956e | Gerd Hoffmann | } |
836 | cae4956e | Gerd Hoffmann | if (dev->num_gpio_out) {
|
837 | cae4956e | Gerd Hoffmann | qdev_printf("gpio-out %d\n", dev->num_gpio_out);
|
838 | cae4956e | Gerd Hoffmann | } |
839 | ee6847d1 | Gerd Hoffmann | qdev_print_props(mon, dev, dev->info->props, "dev", indent);
|
840 | ee6847d1 | Gerd Hoffmann | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
|
841 | 10c4c98a | Gerd Hoffmann | if (dev->parent_bus->info->print_dev)
|
842 | 10c4c98a | Gerd Hoffmann | dev->parent_bus->info->print_dev(mon, dev, indent); |
843 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
844 | cae4956e | Gerd Hoffmann | qbus_print(mon, child, indent); |
845 | cae4956e | Gerd Hoffmann | } |
846 | cae4956e | Gerd Hoffmann | } |
847 | cae4956e | Gerd Hoffmann | |
848 | cae4956e | Gerd Hoffmann | static void qbus_print(Monitor *mon, BusState *bus, int indent) |
849 | cae4956e | Gerd Hoffmann | { |
850 | cae4956e | Gerd Hoffmann | struct DeviceState *dev;
|
851 | cae4956e | Gerd Hoffmann | |
852 | cae4956e | Gerd Hoffmann | qdev_printf("bus: %s\n", bus->name);
|
853 | cae4956e | Gerd Hoffmann | indent += 2;
|
854 | 10c4c98a | Gerd Hoffmann | qdev_printf("type %s\n", bus->info->name);
|
855 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
856 | cae4956e | Gerd Hoffmann | qdev_print(mon, dev, indent); |
857 | cae4956e | Gerd Hoffmann | } |
858 | cae4956e | Gerd Hoffmann | } |
859 | cae4956e | Gerd Hoffmann | #undef qdev_printf
|
860 | cae4956e | Gerd Hoffmann | |
861 | cae4956e | Gerd Hoffmann | void do_info_qtree(Monitor *mon)
|
862 | cae4956e | Gerd Hoffmann | { |
863 | cae4956e | Gerd Hoffmann | if (main_system_bus)
|
864 | cae4956e | Gerd Hoffmann | qbus_print(mon, main_system_bus, 0);
|
865 | cae4956e | Gerd Hoffmann | } |
866 | 9316d30f | Gerd Hoffmann | |
867 | f6c64e0e | Gerd Hoffmann | void do_info_qdm(Monitor *mon)
|
868 | 9316d30f | Gerd Hoffmann | { |
869 | 9316d30f | Gerd Hoffmann | DeviceInfo *info; |
870 | 9316d30f | Gerd Hoffmann | |
871 | 9316d30f | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
872 | 8a9662ca | Markus Armbruster | qdev_print_devinfo(info); |
873 | 9316d30f | Gerd Hoffmann | } |
874 | 9316d30f | Gerd Hoffmann | } |
875 | 3418bd25 | Gerd Hoffmann | |
876 | 8bc27249 | Markus Armbruster | int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
877 | 3418bd25 | Gerd Hoffmann | { |
878 | 3418bd25 | Gerd Hoffmann | QemuOpts *opts; |
879 | 3418bd25 | Gerd Hoffmann | |
880 | 3329f07b | Gerd Hoffmann | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict);
|
881 | 8bc27249 | Markus Armbruster | if (!opts) {
|
882 | 8bc27249 | Markus Armbruster | return -1; |
883 | 8bc27249 | Markus Armbruster | } |
884 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
|
885 | 8bc27249 | Markus Armbruster | qemu_opts_del(opts); |
886 | 8bc27249 | Markus Armbruster | return 0; |
887 | 0f853a38 | Kevin Wolf | } |
888 | 8bc27249 | Markus Armbruster | if (!qdev_device_add(opts)) {
|
889 | 8bc27249 | Markus Armbruster | qemu_opts_del(opts); |
890 | 8bc27249 | Markus Armbruster | return -1; |
891 | 8bc27249 | Markus Armbruster | } |
892 | 8bc27249 | Markus Armbruster | return 0; |
893 | 3418bd25 | Gerd Hoffmann | } |
894 | 3418bd25 | Gerd Hoffmann | |
895 | 17a38eaa | Markus Armbruster | int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
896 | 3418bd25 | Gerd Hoffmann | { |
897 | 3418bd25 | Gerd Hoffmann | const char *id = qdict_get_str(qdict, "id"); |
898 | 3418bd25 | Gerd Hoffmann | DeviceState *dev; |
899 | 3418bd25 | Gerd Hoffmann | |
900 | 3418bd25 | Gerd Hoffmann | dev = qdev_find_recursive(main_system_bus, id); |
901 | 3418bd25 | Gerd Hoffmann | if (NULL == dev) { |
902 | 17a38eaa | Markus Armbruster | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
903 | 17a38eaa | Markus Armbruster | return -1; |
904 | 3418bd25 | Gerd Hoffmann | } |
905 | 17a38eaa | Markus Armbruster | return qdev_unplug(dev);
|
906 | 3418bd25 | Gerd Hoffmann | } |
907 | 1ca4d09a | Gleb Natapov | |
908 | 1ca4d09a | Gleb Natapov | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
909 | 1ca4d09a | Gleb Natapov | { |
910 | 1ca4d09a | Gleb Natapov | int l = 0; |
911 | 1ca4d09a | Gleb Natapov | |
912 | 1ca4d09a | Gleb Natapov | if (dev && dev->parent_bus) {
|
913 | 1ca4d09a | Gleb Natapov | char *d;
|
914 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); |
915 | 1ca4d09a | Gleb Natapov | if (dev->parent_bus->info->get_fw_dev_path) {
|
916 | 1ca4d09a | Gleb Natapov | d = dev->parent_bus->info->get_fw_dev_path(dev); |
917 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l, size - l, "%s", d);
|
918 | 1ca4d09a | Gleb Natapov | qemu_free(d); |
919 | 1ca4d09a | Gleb Natapov | } else {
|
920 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l, size - l, "%s", dev->info->name);
|
921 | 1ca4d09a | Gleb Natapov | } |
922 | 1ca4d09a | Gleb Natapov | } |
923 | 1ca4d09a | Gleb Natapov | l += snprintf(p + l , size - l, "/");
|
924 | 1ca4d09a | Gleb Natapov | |
925 | 1ca4d09a | Gleb Natapov | return l;
|
926 | 1ca4d09a | Gleb Natapov | } |
927 | 1ca4d09a | Gleb Natapov | |
928 | 1ca4d09a | Gleb Natapov | char* qdev_get_fw_dev_path(DeviceState *dev)
|
929 | 1ca4d09a | Gleb Natapov | { |
930 | 1ca4d09a | Gleb Natapov | char path[128]; |
931 | 1ca4d09a | Gleb Natapov | int l;
|
932 | 1ca4d09a | Gleb Natapov | |
933 | 1ca4d09a | Gleb Natapov | l = qdev_get_fw_dev_path_helper(dev, path, 128);
|
934 | 1ca4d09a | Gleb Natapov | |
935 | 1ca4d09a | Gleb Natapov | path[l-1] = '\0'; |
936 | 1ca4d09a | Gleb Natapov | |
937 | 1ca4d09a | Gleb Natapov | return strdup(path);
|
938 | 1ca4d09a | Gleb Natapov | } |