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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 | 2446333c | Blue Swirl | #include "blockdev.h" |
33 | aae9460e | Paul Brook | |
34 | 3418bd25 | Gerd Hoffmann | static int qdev_hotplug = 0; |
35 | 3418bd25 | Gerd Hoffmann | |
36 | cdaed7c7 | Gerd Hoffmann | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */
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37 | b9aaf7f8 | Blue Swirl | static BusState *main_system_bus;
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38 | 4d6ae674 | Paul Brook | |
39 | 0958b4cc | Gerd Hoffmann | DeviceInfo *device_info_list; |
40 | aae9460e | Paul Brook | |
41 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
42 | 8ffb1bcf | Gerd Hoffmann | const BusInfo *info);
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43 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find(const char *path); |
44 | 8ffb1bcf | Gerd Hoffmann | |
45 | aae9460e | Paul Brook | /* Register a new device type. */
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46 | 074f2fff | Gerd Hoffmann | void qdev_register(DeviceInfo *info)
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47 | aae9460e | Paul Brook | { |
48 | 074f2fff | Gerd Hoffmann | assert(info->size >= sizeof(DeviceState));
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49 | 042f84d0 | Gerd Hoffmann | assert(!info->next); |
50 | aae9460e | Paul Brook | |
51 | 042f84d0 | Gerd Hoffmann | info->next = device_info_list; |
52 | 042f84d0 | Gerd Hoffmann | device_info_list = info; |
53 | aae9460e | Paul Brook | } |
54 | aae9460e | Paul Brook | |
55 | 81ebb98b | Gerd Hoffmann | static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name) |
56 | 81ebb98b | Gerd Hoffmann | { |
57 | 81ebb98b | Gerd Hoffmann | DeviceInfo *info; |
58 | 81ebb98b | Gerd Hoffmann | |
59 | 3320e56e | Gerd Hoffmann | /* first check device names */
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60 | 81ebb98b | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
61 | 81ebb98b | Gerd Hoffmann | if (bus_info && info->bus_info != bus_info)
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62 | 81ebb98b | Gerd Hoffmann | continue;
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63 | 81ebb98b | Gerd Hoffmann | if (strcmp(info->name, name) != 0) |
64 | 81ebb98b | Gerd Hoffmann | continue;
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65 | 81ebb98b | Gerd Hoffmann | return info;
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66 | 81ebb98b | Gerd Hoffmann | } |
67 | 3320e56e | Gerd Hoffmann | |
68 | 3320e56e | Gerd Hoffmann | /* failing that check the aliases */
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69 | 3320e56e | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
70 | 3320e56e | Gerd Hoffmann | if (bus_info && info->bus_info != bus_info)
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71 | 3320e56e | Gerd Hoffmann | continue;
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72 | 3320e56e | Gerd Hoffmann | if (!info->alias)
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73 | 3320e56e | Gerd Hoffmann | continue;
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74 | 3320e56e | Gerd Hoffmann | if (strcmp(info->alias, name) != 0) |
75 | 3320e56e | Gerd Hoffmann | continue;
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76 | 3320e56e | Gerd Hoffmann | return info;
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77 | 3320e56e | Gerd Hoffmann | } |
78 | 81ebb98b | Gerd Hoffmann | return NULL; |
79 | 81ebb98b | Gerd Hoffmann | } |
80 | 81ebb98b | Gerd Hoffmann | |
81 | 0c17542d | Markus Armbruster | static DeviceState *qdev_create_from_info(BusState *bus, DeviceInfo *info)
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82 | 0c17542d | Markus Armbruster | { |
83 | 0c17542d | Markus Armbruster | DeviceState *dev; |
84 | 0c17542d | Markus Armbruster | |
85 | 0c17542d | Markus Armbruster | assert(bus->info == info->bus_info); |
86 | 0c17542d | Markus Armbruster | dev = qemu_mallocz(info->size); |
87 | 0c17542d | Markus Armbruster | dev->info = info; |
88 | 0c17542d | Markus Armbruster | dev->parent_bus = bus; |
89 | 0c17542d | Markus Armbruster | qdev_prop_set_defaults(dev, dev->info->props); |
90 | 0c17542d | Markus Armbruster | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
91 | 0c17542d | Markus Armbruster | qdev_prop_set_globals(dev); |
92 | 0c17542d | Markus Armbruster | QLIST_INSERT_HEAD(&bus->children, dev, sibling); |
93 | 0c17542d | Markus Armbruster | if (qdev_hotplug) {
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94 | 0c17542d | Markus Armbruster | assert(bus->allow_hotplug); |
95 | 0c17542d | Markus Armbruster | dev->hotplugged = 1;
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96 | 0c17542d | Markus Armbruster | } |
97 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = -1;
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98 | 0c17542d | Markus Armbruster | dev->state = DEV_STATE_CREATED; |
99 | 0c17542d | Markus Armbruster | return dev;
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100 | 0c17542d | Markus Armbruster | } |
101 | 0c17542d | Markus Armbruster | |
102 | aae9460e | Paul Brook | /* Create a new device. This only initializes the device state structure
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103 | aae9460e | Paul Brook | and allows properties to be set. qdev_init should be called to
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104 | aae9460e | Paul Brook | initialize the actual device emulation. */
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105 | 02e2da45 | Paul Brook | DeviceState *qdev_create(BusState *bus, const char *name) |
106 | aae9460e | Paul Brook | { |
107 | 042f84d0 | Gerd Hoffmann | DeviceInfo *info; |
108 | aae9460e | Paul Brook | |
109 | 10c4c98a | Gerd Hoffmann | if (!bus) {
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110 | 10c4c98a | Gerd Hoffmann | if (!main_system_bus) {
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111 | 10c4c98a | Gerd Hoffmann | main_system_bus = qbus_create(&system_bus_info, NULL, "main-system-bus"); |
112 | aae9460e | Paul Brook | } |
113 | 10c4c98a | Gerd Hoffmann | bus = main_system_bus; |
114 | 10c4c98a | Gerd Hoffmann | } |
115 | 10c4c98a | Gerd Hoffmann | |
116 | 81ebb98b | Gerd Hoffmann | info = qdev_find_info(bus->info, name); |
117 | 042f84d0 | Gerd Hoffmann | if (!info) {
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118 | 10c4c98a | Gerd Hoffmann | hw_error("Unknown device '%s' for bus '%s'\n", name, bus->info->name);
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119 | aae9460e | Paul Brook | } |
120 | aae9460e | Paul Brook | |
121 | 0c17542d | Markus Armbruster | return qdev_create_from_info(bus, info);
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122 | aae9460e | Paul Brook | } |
123 | aae9460e | Paul Brook | |
124 | 8a9662ca | Markus Armbruster | static void qdev_print_devinfo(DeviceInfo *info) |
125 | 1b524b04 | Gerd Hoffmann | { |
126 | 8a9662ca | Markus Armbruster | error_printf("name \"%s\", bus %s",
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127 | 8a9662ca | Markus Armbruster | info->name, info->bus_info->name); |
128 | 22f2e344 | Gerd Hoffmann | if (info->alias) {
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129 | 8a9662ca | Markus Armbruster | error_printf(", alias \"%s\"", info->alias);
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130 | 22f2e344 | Gerd Hoffmann | } |
131 | 22f2e344 | Gerd Hoffmann | if (info->desc) {
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132 | 8a9662ca | Markus Armbruster | error_printf(", desc \"%s\"", info->desc);
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133 | 22f2e344 | Gerd Hoffmann | } |
134 | 22f2e344 | Gerd Hoffmann | if (info->no_user) {
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135 | 8a9662ca | Markus Armbruster | error_printf(", no-user");
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136 | 22f2e344 | Gerd Hoffmann | } |
137 | 8a9662ca | Markus Armbruster | error_printf("\n");
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138 | 1b524b04 | Gerd Hoffmann | } |
139 | 1b524b04 | Gerd Hoffmann | |
140 | f31d07d1 | Gerd Hoffmann | static int set_property(const char *name, const char *value, void *opaque) |
141 | 8ffb1bcf | Gerd Hoffmann | { |
142 | f31d07d1 | Gerd Hoffmann | DeviceState *dev = opaque; |
143 | f31d07d1 | Gerd Hoffmann | |
144 | f31d07d1 | Gerd Hoffmann | if (strcmp(name, "driver") == 0) |
145 | f31d07d1 | Gerd Hoffmann | return 0; |
146 | f31d07d1 | Gerd Hoffmann | if (strcmp(name, "bus") == 0) |
147 | f31d07d1 | Gerd Hoffmann | return 0; |
148 | f31d07d1 | Gerd Hoffmann | |
149 | 3df04ac3 | Mark McLoughlin | if (qdev_prop_parse(dev, name, value) == -1) { |
150 | f31d07d1 | Gerd Hoffmann | return -1; |
151 | f31d07d1 | Gerd Hoffmann | } |
152 | f31d07d1 | Gerd Hoffmann | return 0; |
153 | f31d07d1 | Gerd Hoffmann | } |
154 | f31d07d1 | Gerd Hoffmann | |
155 | ff952ba2 | Markus Armbruster | int qdev_device_help(QemuOpts *opts)
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156 | ff952ba2 | Markus Armbruster | { |
157 | ff952ba2 | Markus Armbruster | const char *driver; |
158 | ff952ba2 | Markus Armbruster | DeviceInfo *info; |
159 | 08350cf0 | Markus Armbruster | Property *prop; |
160 | ff952ba2 | Markus Armbruster | |
161 | ff952ba2 | Markus Armbruster | driver = qemu_opt_get(opts, "driver");
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162 | ff952ba2 | Markus Armbruster | if (driver && !strcmp(driver, "?")) { |
163 | ff952ba2 | Markus Armbruster | for (info = device_info_list; info != NULL; info = info->next) { |
164 | c64eafaf | Markus Armbruster | if (info->no_user) {
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165 | c64eafaf | Markus Armbruster | continue; /* not available, don't show */ |
166 | c64eafaf | Markus Armbruster | } |
167 | 8a9662ca | Markus Armbruster | qdev_print_devinfo(info); |
168 | ff952ba2 | Markus Armbruster | } |
169 | ff952ba2 | Markus Armbruster | return 1; |
170 | ff952ba2 | Markus Armbruster | } |
171 | ff952ba2 | Markus Armbruster | |
172 | 08350cf0 | Markus Armbruster | if (!qemu_opt_get(opts, "?")) { |
173 | 08350cf0 | Markus Armbruster | return 0; |
174 | 08350cf0 | Markus Armbruster | } |
175 | 08350cf0 | Markus Armbruster | |
176 | 08350cf0 | Markus Armbruster | info = qdev_find_info(NULL, driver);
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177 | 08350cf0 | Markus Armbruster | if (!info) {
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178 | 08350cf0 | Markus Armbruster | return 0; |
179 | 08350cf0 | Markus Armbruster | } |
180 | 08350cf0 | Markus Armbruster | |
181 | 08350cf0 | Markus Armbruster | for (prop = info->props; prop && prop->name; prop++) {
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182 | 036f7166 | Markus Armbruster | /*
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183 | 036f7166 | Markus Armbruster | * TODO Properties without a parser are just for dirty hacks.
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184 | 036f7166 | Markus Armbruster | * qdev_prop_ptr is the only such PropertyInfo. It's marked
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185 | 036f7166 | Markus Armbruster | * for removal. This conditional should be removed along with
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186 | 036f7166 | Markus Armbruster | * it.
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187 | 036f7166 | Markus Armbruster | */
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188 | 036f7166 | Markus Armbruster | if (!prop->info->parse) {
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189 | 036f7166 | Markus Armbruster | continue; /* no way to set it, don't show */ |
190 | 036f7166 | Markus Armbruster | } |
191 | 8a9662ca | Markus Armbruster | error_printf("%s.%s=%s\n", info->name, prop->name, prop->info->name);
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192 | 08350cf0 | Markus Armbruster | } |
193 | 08350cf0 | Markus Armbruster | return 1; |
194 | ff952ba2 | Markus Armbruster | } |
195 | ff952ba2 | Markus Armbruster | |
196 | f31d07d1 | Gerd Hoffmann | DeviceState *qdev_device_add(QemuOpts *opts) |
197 | f31d07d1 | Gerd Hoffmann | { |
198 | f31d07d1 | Gerd Hoffmann | const char *driver, *path, *id; |
199 | 8ffb1bcf | Gerd Hoffmann | DeviceInfo *info; |
200 | 8ffb1bcf | Gerd Hoffmann | DeviceState *qdev; |
201 | 8ffb1bcf | Gerd Hoffmann | BusState *bus; |
202 | 8ffb1bcf | Gerd Hoffmann | |
203 | f31d07d1 | Gerd Hoffmann | driver = qemu_opt_get(opts, "driver");
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204 | f31d07d1 | Gerd Hoffmann | if (!driver) {
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205 | 0204276b | Markus Armbruster | qerror_report(QERR_MISSING_PARAMETER, "driver");
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206 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
207 | 8ffb1bcf | Gerd Hoffmann | } |
208 | f31d07d1 | Gerd Hoffmann | |
209 | f31d07d1 | Gerd Hoffmann | /* find driver */
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210 | 8ffb1bcf | Gerd Hoffmann | info = qdev_find_info(NULL, driver);
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211 | c64eafaf | Markus Armbruster | if (!info || info->no_user) {
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212 | e17ba87c | Markus Armbruster | qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "a driver name"); |
213 | 0204276b | Markus Armbruster | error_printf_unless_qmp("Try with argument '?' for a list.\n");
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214 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
215 | 8ffb1bcf | Gerd Hoffmann | } |
216 | 8ffb1bcf | Gerd Hoffmann | |
217 | f31d07d1 | Gerd Hoffmann | /* find bus */
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218 | f31d07d1 | Gerd Hoffmann | path = qemu_opt_get(opts, "bus");
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219 | f31d07d1 | Gerd Hoffmann | if (path != NULL) { |
220 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find(path); |
221 | ac8dae67 | Markus Armbruster | if (!bus) {
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222 | ac8dae67 | Markus Armbruster | return NULL; |
223 | ac8dae67 | Markus Armbruster | } |
224 | ac8dae67 | Markus Armbruster | if (bus->info != info->bus_info) {
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225 | 0204276b | Markus Armbruster | qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
226 | 0204276b | Markus Armbruster | driver, bus->info->name); |
227 | 327867b6 | Markus Armbruster | return NULL; |
228 | 327867b6 | Markus Armbruster | } |
229 | 8ffb1bcf | Gerd Hoffmann | } else {
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230 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_recursive(main_system_bus, NULL, info->bus_info);
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231 | ac8dae67 | Markus Armbruster | if (!bus) {
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232 | 0204276b | Markus Armbruster | qerror_report(QERR_NO_BUS_FOR_DEVICE, |
233 | 0204276b | Markus Armbruster | info->name, info->bus_info->name); |
234 | ac8dae67 | Markus Armbruster | return NULL; |
235 | ac8dae67 | Markus Armbruster | } |
236 | 75570088 | Gerd Hoffmann | } |
237 | 3418bd25 | Gerd Hoffmann | if (qdev_hotplug && !bus->allow_hotplug) {
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238 | 0204276b | Markus Armbruster | qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
239 | 3418bd25 | Gerd Hoffmann | return NULL; |
240 | 3418bd25 | Gerd Hoffmann | } |
241 | 8ffb1bcf | Gerd Hoffmann | |
242 | f31d07d1 | Gerd Hoffmann | /* create device, set properties */
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243 | 0c17542d | Markus Armbruster | qdev = qdev_create_from_info(bus, info); |
244 | f31d07d1 | Gerd Hoffmann | id = qemu_opts_id(opts); |
245 | f31d07d1 | Gerd Hoffmann | if (id) {
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246 | f31d07d1 | Gerd Hoffmann | qdev->id = id; |
247 | f31d07d1 | Gerd Hoffmann | } |
248 | f31d07d1 | Gerd Hoffmann | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
249 | f31d07d1 | Gerd Hoffmann | qdev_free(qdev); |
250 | f31d07d1 | Gerd Hoffmann | return NULL; |
251 | 8ffb1bcf | Gerd Hoffmann | } |
252 | 5c17ca25 | Markus Armbruster | if (qdev_init(qdev) < 0) { |
253 | 0204276b | Markus Armbruster | qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
254 | 81a322d4 | Gerd Hoffmann | return NULL; |
255 | 81a322d4 | Gerd Hoffmann | } |
256 | ef80b466 | Gerd Hoffmann | qdev->opts = opts; |
257 | 8ffb1bcf | Gerd Hoffmann | return qdev;
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258 | 8ffb1bcf | Gerd Hoffmann | } |
259 | 8ffb1bcf | Gerd Hoffmann | |
260 | 7f23f812 | Michael S. Tsirkin | static void qdev_reset(void *opaque) |
261 | 7f23f812 | Michael S. Tsirkin | { |
262 | 7f23f812 | Michael S. Tsirkin | DeviceState *dev = opaque; |
263 | 7f23f812 | Michael S. Tsirkin | if (dev->info->reset)
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264 | 7f23f812 | Michael S. Tsirkin | dev->info->reset(dev); |
265 | 7f23f812 | Michael S. Tsirkin | } |
266 | 7f23f812 | Michael S. Tsirkin | |
267 | aae9460e | Paul Brook | /* Initialize a device. Device properties should be set before calling
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268 | aae9460e | Paul Brook | this function. IRQs and MMIO regions should be connected/mapped after
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269 | 18cfeb52 | Markus Armbruster | calling this function.
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270 | 18cfeb52 | Markus Armbruster | On failure, destroy the device and return negative value.
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271 | 18cfeb52 | Markus Armbruster | Return 0 on success. */
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272 | 81a322d4 | Gerd Hoffmann | int qdev_init(DeviceState *dev)
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273 | aae9460e | Paul Brook | { |
274 | 959f733a | Gerd Hoffmann | int rc;
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275 | 959f733a | Gerd Hoffmann | |
276 | 131ec1bd | Gerd Hoffmann | assert(dev->state == DEV_STATE_CREATED); |
277 | 959f733a | Gerd Hoffmann | rc = dev->info->init(dev, dev->info); |
278 | 18cfeb52 | Markus Armbruster | if (rc < 0) { |
279 | 18cfeb52 | Markus Armbruster | qdev_free(dev); |
280 | 959f733a | Gerd Hoffmann | return rc;
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281 | 18cfeb52 | Markus Armbruster | } |
282 | 7f23f812 | Michael S. Tsirkin | qemu_register_reset(qdev_reset, dev); |
283 | 4d2ffa08 | Jan Kiszka | if (dev->info->vmsd) {
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284 | 0be71e32 | Alex Williamson | vmstate_register_with_alias_id(dev, -1, dev->info->vmsd, dev,
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285 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias, |
286 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version); |
287 | 4d2ffa08 | Jan Kiszka | } |
288 | 131ec1bd | Gerd Hoffmann | dev->state = DEV_STATE_INITIALIZED; |
289 | 959f733a | Gerd Hoffmann | return 0; |
290 | 02e2da45 | Paul Brook | } |
291 | 02e2da45 | Paul Brook | |
292 | 4d2ffa08 | Jan Kiszka | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
293 | 4d2ffa08 | Jan Kiszka | int required_for_version)
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294 | 4d2ffa08 | Jan Kiszka | { |
295 | 4d2ffa08 | Jan Kiszka | assert(dev->state == DEV_STATE_CREATED); |
296 | 4d2ffa08 | Jan Kiszka | dev->instance_id_alias = alias_id; |
297 | 4d2ffa08 | Jan Kiszka | dev->alias_required_for_version = required_for_version; |
298 | 4d2ffa08 | Jan Kiszka | } |
299 | 4d2ffa08 | Jan Kiszka | |
300 | 3418bd25 | Gerd Hoffmann | int qdev_unplug(DeviceState *dev)
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301 | 3418bd25 | Gerd Hoffmann | { |
302 | 3418bd25 | Gerd Hoffmann | if (!dev->parent_bus->allow_hotplug) {
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303 | cc601cb7 | Markus Armbruster | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
304 | 3418bd25 | Gerd Hoffmann | return -1; |
305 | 3418bd25 | Gerd Hoffmann | } |
306 | 593831de | Amit Shah | assert(dev->info->unplug != NULL);
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307 | 593831de | Amit Shah | |
308 | 3418bd25 | Gerd Hoffmann | return dev->info->unplug(dev);
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309 | 3418bd25 | Gerd Hoffmann | } |
310 | 3418bd25 | Gerd Hoffmann | |
311 | 3418bd25 | Gerd Hoffmann | /* can be used as ->unplug() callback for the simple cases */
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312 | 3418bd25 | Gerd Hoffmann | int qdev_simple_unplug_cb(DeviceState *dev)
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313 | 3418bd25 | Gerd Hoffmann | { |
314 | 3418bd25 | Gerd Hoffmann | /* just zap it */
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315 | 3418bd25 | Gerd Hoffmann | qdev_free(dev); |
316 | 3418bd25 | Gerd Hoffmann | return 0; |
317 | 3418bd25 | Gerd Hoffmann | } |
318 | 3418bd25 | Gerd Hoffmann | |
319 | e23a1b33 | Markus Armbruster | /* Like qdev_init(), but terminate program via hw_error() instead of
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320 | e23a1b33 | Markus Armbruster | returning an error value. This is okay during machine creation.
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321 | e23a1b33 | Markus Armbruster | Don't use for hotplug, because there callers need to recover from
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322 | e23a1b33 | Markus Armbruster | failure. Exception: if you know the device's init() callback can't
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323 | e23a1b33 | Markus Armbruster | fail, then qdev_init_nofail() can't fail either, and is therefore
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324 | e23a1b33 | Markus Armbruster | usable even then. But relying on the device implementation that
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325 | e23a1b33 | Markus Armbruster | way is somewhat unclean, and best avoided. */
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326 | e23a1b33 | Markus Armbruster | void qdev_init_nofail(DeviceState *dev)
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327 | e23a1b33 | Markus Armbruster | { |
328 | e23a1b33 | Markus Armbruster | DeviceInfo *info = dev->info; |
329 | e23a1b33 | Markus Armbruster | |
330 | bd6c9a61 | Markus Armbruster | if (qdev_init(dev) < 0) { |
331 | bd6c9a61 | Markus Armbruster | error_report("Initialization of device %s failed\n", info->name);
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332 | bd6c9a61 | Markus Armbruster | exit(1);
|
333 | bd6c9a61 | Markus Armbruster | } |
334 | e23a1b33 | Markus Armbruster | } |
335 | e23a1b33 | Markus Armbruster | |
336 | 02e2da45 | Paul Brook | /* Unlink device from bus and free the structure. */
|
337 | 02e2da45 | Paul Brook | void qdev_free(DeviceState *dev)
|
338 | 02e2da45 | Paul Brook | { |
339 | 131ec1bd | Gerd Hoffmann | BusState *bus; |
340 | d21357df | Markus Armbruster | Property *prop; |
341 | 131ec1bd | Gerd Hoffmann | |
342 | 131ec1bd | Gerd Hoffmann | if (dev->state == DEV_STATE_INITIALIZED) {
|
343 | 131ec1bd | Gerd Hoffmann | while (dev->num_child_bus) {
|
344 | 131ec1bd | Gerd Hoffmann | bus = QLIST_FIRST(&dev->child_bus); |
345 | 131ec1bd | Gerd Hoffmann | qbus_free(bus); |
346 | 131ec1bd | Gerd Hoffmann | } |
347 | 131ec1bd | Gerd Hoffmann | if (dev->info->vmsd)
|
348 | 0be71e32 | Alex Williamson | vmstate_unregister(dev, dev->info->vmsd, dev); |
349 | d29275f1 | Gerd Hoffmann | if (dev->info->exit)
|
350 | d29275f1 | Gerd Hoffmann | dev->info->exit(dev); |
351 | ef80b466 | Gerd Hoffmann | if (dev->opts)
|
352 | ef80b466 | Gerd Hoffmann | qemu_opts_del(dev->opts); |
353 | 131ec1bd | Gerd Hoffmann | } |
354 | 7f23f812 | Michael S. Tsirkin | qemu_unregister_reset(qdev_reset, dev); |
355 | 72cf2d4f | Blue Swirl | QLIST_REMOVE(dev, sibling); |
356 | d21357df | Markus Armbruster | for (prop = dev->info->props; prop && prop->name; prop++) {
|
357 | d21357df | Markus Armbruster | if (prop->info->free) {
|
358 | d21357df | Markus Armbruster | prop->info->free(dev, prop); |
359 | d21357df | Markus Armbruster | } |
360 | d21357df | Markus Armbruster | } |
361 | ccb63de3 | Gerd Hoffmann | qemu_free(dev); |
362 | aae9460e | Paul Brook | } |
363 | aae9460e | Paul Brook | |
364 | 3418bd25 | Gerd Hoffmann | void qdev_machine_creation_done(void) |
365 | 3418bd25 | Gerd Hoffmann | { |
366 | 3418bd25 | Gerd Hoffmann | /*
|
367 | 3418bd25 | Gerd Hoffmann | * ok, initial machine setup is done, starting from now we can
|
368 | 3418bd25 | Gerd Hoffmann | * only create hotpluggable devices
|
369 | 3418bd25 | Gerd Hoffmann | */
|
370 | 3418bd25 | Gerd Hoffmann | qdev_hotplug = 1;
|
371 | 3418bd25 | Gerd Hoffmann | } |
372 | 3418bd25 | Gerd Hoffmann | |
373 | aae9460e | Paul Brook | /* Get a character (serial) device interface. */
|
374 | aae9460e | Paul Brook | CharDriverState *qdev_init_chardev(DeviceState *dev) |
375 | aae9460e | Paul Brook | { |
376 | aae9460e | Paul Brook | static int next_serial; |
377 | 98b19252 | Amit Shah | |
378 | 98b19252 | Amit Shah | /* FIXME: This function needs to go away: use chardev properties! */
|
379 | 98b19252 | Amit Shah | return serial_hds[next_serial++];
|
380 | aae9460e | Paul Brook | } |
381 | aae9460e | Paul Brook | |
382 | 02e2da45 | Paul Brook | BusState *qdev_get_parent_bus(DeviceState *dev) |
383 | aae9460e | Paul Brook | { |
384 | 02e2da45 | Paul Brook | return dev->parent_bus;
|
385 | aae9460e | Paul Brook | } |
386 | aae9460e | Paul Brook | |
387 | aae9460e | Paul Brook | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
388 | aae9460e | Paul Brook | { |
389 | aae9460e | Paul Brook | assert(dev->num_gpio_in == 0);
|
390 | aae9460e | Paul Brook | dev->num_gpio_in = n; |
391 | aae9460e | Paul Brook | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); |
392 | aae9460e | Paul Brook | } |
393 | aae9460e | Paul Brook | |
394 | aae9460e | Paul Brook | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
395 | aae9460e | Paul Brook | { |
396 | aae9460e | Paul Brook | assert(dev->num_gpio_out == 0);
|
397 | aae9460e | Paul Brook | dev->num_gpio_out = n; |
398 | aae9460e | Paul Brook | dev->gpio_out = pins; |
399 | aae9460e | Paul Brook | } |
400 | aae9460e | Paul Brook | |
401 | aae9460e | Paul Brook | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
|
402 | aae9460e | Paul Brook | { |
403 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_in);
|
404 | aae9460e | Paul Brook | return dev->gpio_in[n];
|
405 | aae9460e | Paul Brook | } |
406 | aae9460e | Paul Brook | |
407 | aae9460e | Paul Brook | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
408 | aae9460e | Paul Brook | { |
409 | aae9460e | Paul Brook | assert(n >= 0 && n < dev->num_gpio_out);
|
410 | aae9460e | Paul Brook | dev->gpio_out[n] = pin; |
411 | aae9460e | Paul Brook | } |
412 | aae9460e | Paul Brook | |
413 | ed16ab5a | Gerd Hoffmann | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd)
|
414 | ed16ab5a | Gerd Hoffmann | { |
415 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_macaddr(dev, "mac", nd->macaddr);
|
416 | ed16ab5a | Gerd Hoffmann | if (nd->vlan)
|
417 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_vlan(dev, "vlan", nd->vlan);
|
418 | ed16ab5a | Gerd Hoffmann | if (nd->netdev)
|
419 | ed16ab5a | Gerd Hoffmann | qdev_prop_set_netdev(dev, "netdev", nd->netdev);
|
420 | 75422b0d | Amit Shah | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
|
421 | 97b15621 | Gerd Hoffmann | qdev_prop_exists(dev, "vectors")) {
|
422 | 97b15621 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "vectors", nd->nvectors);
|
423 | 97b15621 | Gerd Hoffmann | } |
424 | ed16ab5a | Gerd Hoffmann | } |
425 | ed16ab5a | Gerd Hoffmann | |
426 | aae9460e | Paul Brook | static int next_block_unit[IF_COUNT]; |
427 | aae9460e | Paul Brook | |
428 | aae9460e | Paul Brook | /* Get a block device. This should only be used for single-drive devices
|
429 | aae9460e | Paul Brook | (e.g. SD/Floppy/MTD). Multi-disk devices (scsi/ide) should use the
|
430 | aae9460e | Paul Brook | appropriate bus. */
|
431 | aae9460e | Paul Brook | BlockDriverState *qdev_init_bdrv(DeviceState *dev, BlockInterfaceType type) |
432 | aae9460e | Paul Brook | { |
433 | aae9460e | Paul Brook | int unit = next_block_unit[type]++;
|
434 | 751c6a17 | Gerd Hoffmann | DriveInfo *dinfo; |
435 | aae9460e | Paul Brook | |
436 | 751c6a17 | Gerd Hoffmann | dinfo = drive_get(type, 0, unit);
|
437 | 751c6a17 | Gerd Hoffmann | return dinfo ? dinfo->bdrv : NULL; |
438 | aae9460e | Paul Brook | } |
439 | 4d6ae674 | Paul Brook | |
440 | 02e2da45 | Paul Brook | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
441 | 4d6ae674 | Paul Brook | { |
442 | 02e2da45 | Paul Brook | BusState *bus; |
443 | 4d6ae674 | Paul Brook | |
444 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
445 | 4d6ae674 | Paul Brook | if (strcmp(name, bus->name) == 0) { |
446 | 02e2da45 | Paul Brook | return bus;
|
447 | 4d6ae674 | Paul Brook | } |
448 | 4d6ae674 | Paul Brook | } |
449 | 4d6ae674 | Paul Brook | return NULL; |
450 | 4d6ae674 | Paul Brook | } |
451 | 4d6ae674 | Paul Brook | |
452 | 81699d8a | Anthony Liguori | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn,
|
453 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
454 | 81699d8a | Anthony Liguori | { |
455 | 81699d8a | Anthony Liguori | DeviceState *dev; |
456 | 81699d8a | Anthony Liguori | int err;
|
457 | 81699d8a | Anthony Liguori | |
458 | 81699d8a | Anthony Liguori | if (busfn) {
|
459 | 81699d8a | Anthony Liguori | err = busfn(bus, opaque); |
460 | 81699d8a | Anthony Liguori | if (err) {
|
461 | 81699d8a | Anthony Liguori | return err;
|
462 | 81699d8a | Anthony Liguori | } |
463 | 81699d8a | Anthony Liguori | } |
464 | 81699d8a | Anthony Liguori | |
465 | 81699d8a | Anthony Liguori | QLIST_FOREACH(dev, &bus->children, sibling) { |
466 | 81699d8a | Anthony Liguori | err = qdev_walk_children(dev, devfn, busfn, opaque); |
467 | 81699d8a | Anthony Liguori | if (err < 0) { |
468 | 81699d8a | Anthony Liguori | return err;
|
469 | 81699d8a | Anthony Liguori | } |
470 | 81699d8a | Anthony Liguori | } |
471 | 81699d8a | Anthony Liguori | |
472 | 81699d8a | Anthony Liguori | return 0; |
473 | 81699d8a | Anthony Liguori | } |
474 | 81699d8a | Anthony Liguori | |
475 | 81699d8a | Anthony Liguori | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn,
|
476 | 81699d8a | Anthony Liguori | qbus_walkerfn *busfn, void *opaque)
|
477 | 81699d8a | Anthony Liguori | { |
478 | 81699d8a | Anthony Liguori | BusState *bus; |
479 | 81699d8a | Anthony Liguori | int err;
|
480 | 81699d8a | Anthony Liguori | |
481 | 81699d8a | Anthony Liguori | if (devfn) {
|
482 | 81699d8a | Anthony Liguori | err = devfn(dev, opaque); |
483 | 81699d8a | Anthony Liguori | if (err) {
|
484 | 81699d8a | Anthony Liguori | return err;
|
485 | 81699d8a | Anthony Liguori | } |
486 | 81699d8a | Anthony Liguori | } |
487 | 81699d8a | Anthony Liguori | |
488 | 81699d8a | Anthony Liguori | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
489 | 81699d8a | Anthony Liguori | err = qbus_walk_children(bus, devfn, busfn, opaque); |
490 | 81699d8a | Anthony Liguori | if (err < 0) { |
491 | 81699d8a | Anthony Liguori | return err;
|
492 | 81699d8a | Anthony Liguori | } |
493 | 81699d8a | Anthony Liguori | } |
494 | 81699d8a | Anthony Liguori | |
495 | 81699d8a | Anthony Liguori | return 0; |
496 | 81699d8a | Anthony Liguori | } |
497 | 81699d8a | Anthony Liguori | |
498 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
499 | 8ffb1bcf | Gerd Hoffmann | const BusInfo *info)
|
500 | 8ffb1bcf | Gerd Hoffmann | { |
501 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
502 | 8ffb1bcf | Gerd Hoffmann | BusState *child, *ret; |
503 | 8ffb1bcf | Gerd Hoffmann | int match = 1; |
504 | 8ffb1bcf | Gerd Hoffmann | |
505 | 8ffb1bcf | Gerd Hoffmann | if (name && (strcmp(bus->name, name) != 0)) { |
506 | 8ffb1bcf | Gerd Hoffmann | match = 0;
|
507 | 8ffb1bcf | Gerd Hoffmann | } |
508 | 8ffb1bcf | Gerd Hoffmann | if (info && (bus->info != info)) {
|
509 | 8ffb1bcf | Gerd Hoffmann | match = 0;
|
510 | 8ffb1bcf | Gerd Hoffmann | } |
511 | 8ffb1bcf | Gerd Hoffmann | if (match) {
|
512 | 8ffb1bcf | Gerd Hoffmann | return bus;
|
513 | 8ffb1bcf | Gerd Hoffmann | } |
514 | 8ffb1bcf | Gerd Hoffmann | |
515 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
516 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
517 | 8ffb1bcf | Gerd Hoffmann | ret = qbus_find_recursive(child, name, info); |
518 | 8ffb1bcf | Gerd Hoffmann | if (ret) {
|
519 | 8ffb1bcf | Gerd Hoffmann | return ret;
|
520 | 8ffb1bcf | Gerd Hoffmann | } |
521 | 8ffb1bcf | Gerd Hoffmann | } |
522 | 8ffb1bcf | Gerd Hoffmann | } |
523 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
524 | 8ffb1bcf | Gerd Hoffmann | } |
525 | 8ffb1bcf | Gerd Hoffmann | |
526 | 3418bd25 | Gerd Hoffmann | static DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
527 | 3418bd25 | Gerd Hoffmann | { |
528 | 3418bd25 | Gerd Hoffmann | DeviceState *dev, *ret; |
529 | 3418bd25 | Gerd Hoffmann | BusState *child; |
530 | 3418bd25 | Gerd Hoffmann | |
531 | 3418bd25 | Gerd Hoffmann | QLIST_FOREACH(dev, &bus->children, sibling) { |
532 | 3418bd25 | Gerd Hoffmann | if (dev->id && strcmp(dev->id, id) == 0) |
533 | 3418bd25 | Gerd Hoffmann | return dev;
|
534 | 3418bd25 | Gerd Hoffmann | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
535 | 3418bd25 | Gerd Hoffmann | ret = qdev_find_recursive(child, id); |
536 | 3418bd25 | Gerd Hoffmann | if (ret) {
|
537 | 3418bd25 | Gerd Hoffmann | return ret;
|
538 | 3418bd25 | Gerd Hoffmann | } |
539 | 3418bd25 | Gerd Hoffmann | } |
540 | 3418bd25 | Gerd Hoffmann | } |
541 | 3418bd25 | Gerd Hoffmann | return NULL; |
542 | 3418bd25 | Gerd Hoffmann | } |
543 | 3418bd25 | Gerd Hoffmann | |
544 | 53db16b5 | Markus Armbruster | static void qbus_list_bus(DeviceState *dev) |
545 | 8ffb1bcf | Gerd Hoffmann | { |
546 | 8ffb1bcf | Gerd Hoffmann | BusState *child; |
547 | 8ffb1bcf | Gerd Hoffmann | const char *sep = " "; |
548 | 8ffb1bcf | Gerd Hoffmann | |
549 | 53db16b5 | Markus Armbruster | error_printf("child busses at \"%s\":",
|
550 | 53db16b5 | Markus Armbruster | dev->id ? dev->id : dev->info->name); |
551 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
552 | 53db16b5 | Markus Armbruster | error_printf("%s\"%s\"", sep, child->name);
|
553 | 8ffb1bcf | Gerd Hoffmann | sep = ", ";
|
554 | 8ffb1bcf | Gerd Hoffmann | } |
555 | 53db16b5 | Markus Armbruster | error_printf("\n");
|
556 | 8ffb1bcf | Gerd Hoffmann | } |
557 | 8ffb1bcf | Gerd Hoffmann | |
558 | 53db16b5 | Markus Armbruster | static void qbus_list_dev(BusState *bus) |
559 | 8ffb1bcf | Gerd Hoffmann | { |
560 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
561 | 8ffb1bcf | Gerd Hoffmann | const char *sep = " "; |
562 | 8ffb1bcf | Gerd Hoffmann | |
563 | 53db16b5 | Markus Armbruster | error_printf("devices at \"%s\":", bus->name);
|
564 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
565 | 53db16b5 | Markus Armbruster | error_printf("%s\"%s\"", sep, dev->info->name);
|
566 | 8ffb1bcf | Gerd Hoffmann | if (dev->id)
|
567 | 53db16b5 | Markus Armbruster | error_printf("/\"%s\"", dev->id);
|
568 | 8ffb1bcf | Gerd Hoffmann | sep = ", ";
|
569 | 8ffb1bcf | Gerd Hoffmann | } |
570 | 53db16b5 | Markus Armbruster | error_printf("\n");
|
571 | 8ffb1bcf | Gerd Hoffmann | } |
572 | 8ffb1bcf | Gerd Hoffmann | |
573 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find_bus(DeviceState *dev, char *elem) |
574 | 8ffb1bcf | Gerd Hoffmann | { |
575 | 8ffb1bcf | Gerd Hoffmann | BusState *child; |
576 | 8ffb1bcf | Gerd Hoffmann | |
577 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
578 | 8ffb1bcf | Gerd Hoffmann | if (strcmp(child->name, elem) == 0) { |
579 | 8ffb1bcf | Gerd Hoffmann | return child;
|
580 | 8ffb1bcf | Gerd Hoffmann | } |
581 | 8ffb1bcf | Gerd Hoffmann | } |
582 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
583 | 8ffb1bcf | Gerd Hoffmann | } |
584 | 8ffb1bcf | Gerd Hoffmann | |
585 | 8ffb1bcf | Gerd Hoffmann | static DeviceState *qbus_find_dev(BusState *bus, char *elem) |
586 | 8ffb1bcf | Gerd Hoffmann | { |
587 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
588 | 8ffb1bcf | Gerd Hoffmann | |
589 | 8ffb1bcf | Gerd Hoffmann | /*
|
590 | 8ffb1bcf | Gerd Hoffmann | * try to match in order:
|
591 | 8ffb1bcf | Gerd Hoffmann | * (1) instance id, if present
|
592 | 8ffb1bcf | Gerd Hoffmann | * (2) driver name
|
593 | 8ffb1bcf | Gerd Hoffmann | * (3) driver alias, if present
|
594 | 8ffb1bcf | Gerd Hoffmann | */
|
595 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
596 | 8ffb1bcf | Gerd Hoffmann | if (dev->id && strcmp(dev->id, elem) == 0) { |
597 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
598 | 8ffb1bcf | Gerd Hoffmann | } |
599 | 8ffb1bcf | Gerd Hoffmann | } |
600 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
601 | 8ffb1bcf | Gerd Hoffmann | if (strcmp(dev->info->name, elem) == 0) { |
602 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
603 | 8ffb1bcf | Gerd Hoffmann | } |
604 | 8ffb1bcf | Gerd Hoffmann | } |
605 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
606 | 8ffb1bcf | Gerd Hoffmann | if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) { |
607 | 8ffb1bcf | Gerd Hoffmann | return dev;
|
608 | 8ffb1bcf | Gerd Hoffmann | } |
609 | 8ffb1bcf | Gerd Hoffmann | } |
610 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
611 | 8ffb1bcf | Gerd Hoffmann | } |
612 | 8ffb1bcf | Gerd Hoffmann | |
613 | 8ffb1bcf | Gerd Hoffmann | static BusState *qbus_find(const char *path) |
614 | 8ffb1bcf | Gerd Hoffmann | { |
615 | 8ffb1bcf | Gerd Hoffmann | DeviceState *dev; |
616 | 8ffb1bcf | Gerd Hoffmann | BusState *bus; |
617 | 53db16b5 | Markus Armbruster | char elem[128]; |
618 | 8ffb1bcf | Gerd Hoffmann | int pos, len;
|
619 | 8ffb1bcf | Gerd Hoffmann | |
620 | 8ffb1bcf | Gerd Hoffmann | /* find start element */
|
621 | 8ffb1bcf | Gerd Hoffmann | if (path[0] == '/') { |
622 | 8ffb1bcf | Gerd Hoffmann | bus = main_system_bus; |
623 | 8ffb1bcf | Gerd Hoffmann | pos = 0;
|
624 | 8ffb1bcf | Gerd Hoffmann | } else {
|
625 | 8ffb1bcf | Gerd Hoffmann | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { |
626 | fc98eb43 | Markus Armbruster | assert(!path[0]);
|
627 | fc98eb43 | Markus Armbruster | elem[0] = len = 0; |
628 | 8ffb1bcf | Gerd Hoffmann | } |
629 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_recursive(main_system_bus, elem, NULL);
|
630 | 8ffb1bcf | Gerd Hoffmann | if (!bus) {
|
631 | ac8dae67 | Markus Armbruster | qerror_report(QERR_BUS_NOT_FOUND, elem); |
632 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
633 | 8ffb1bcf | Gerd Hoffmann | } |
634 | 8ffb1bcf | Gerd Hoffmann | pos = len; |
635 | 8ffb1bcf | Gerd Hoffmann | } |
636 | 8ffb1bcf | Gerd Hoffmann | |
637 | 8ffb1bcf | Gerd Hoffmann | for (;;) {
|
638 | fc98eb43 | Markus Armbruster | assert(path[pos] == '/' || !path[pos]);
|
639 | fc98eb43 | Markus Armbruster | while (path[pos] == '/') { |
640 | fc98eb43 | Markus Armbruster | pos++; |
641 | fc98eb43 | Markus Armbruster | } |
642 | 8ffb1bcf | Gerd Hoffmann | if (path[pos] == '\0') { |
643 | 8ffb1bcf | Gerd Hoffmann | return bus;
|
644 | 8ffb1bcf | Gerd Hoffmann | } |
645 | 8ffb1bcf | Gerd Hoffmann | |
646 | 8ffb1bcf | Gerd Hoffmann | /* find device */
|
647 | fc98eb43 | Markus Armbruster | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
648 | fc98eb43 | Markus Armbruster | assert(0);
|
649 | fc98eb43 | Markus Armbruster | elem[0] = len = 0; |
650 | 8ffb1bcf | Gerd Hoffmann | } |
651 | 8ffb1bcf | Gerd Hoffmann | pos += len; |
652 | 8ffb1bcf | Gerd Hoffmann | dev = qbus_find_dev(bus, elem); |
653 | 8ffb1bcf | Gerd Hoffmann | if (!dev) {
|
654 | ac8dae67 | Markus Armbruster | qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
655 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp()) {
|
656 | 8bc27249 | Markus Armbruster | qbus_list_dev(bus); |
657 | 8bc27249 | Markus Armbruster | } |
658 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
659 | 8ffb1bcf | Gerd Hoffmann | } |
660 | fc98eb43 | Markus Armbruster | |
661 | fc98eb43 | Markus Armbruster | assert(path[pos] == '/' || !path[pos]);
|
662 | fc98eb43 | Markus Armbruster | while (path[pos] == '/') { |
663 | fc98eb43 | Markus Armbruster | pos++; |
664 | fc98eb43 | Markus Armbruster | } |
665 | 8ffb1bcf | Gerd Hoffmann | if (path[pos] == '\0') { |
666 | 8ffb1bcf | Gerd Hoffmann | /* last specified element is a device. If it has exactly
|
667 | 8ffb1bcf | Gerd Hoffmann | * one child bus accept it nevertheless */
|
668 | 8ffb1bcf | Gerd Hoffmann | switch (dev->num_child_bus) {
|
669 | 8ffb1bcf | Gerd Hoffmann | case 0: |
670 | ac8dae67 | Markus Armbruster | qerror_report(QERR_DEVICE_NO_BUS, elem); |
671 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
672 | 8ffb1bcf | Gerd Hoffmann | case 1: |
673 | 72cf2d4f | Blue Swirl | return QLIST_FIRST(&dev->child_bus);
|
674 | 8ffb1bcf | Gerd Hoffmann | default:
|
675 | ac8dae67 | Markus Armbruster | qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
676 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp()) {
|
677 | 8bc27249 | Markus Armbruster | qbus_list_bus(dev); |
678 | 8bc27249 | Markus Armbruster | } |
679 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
680 | 8ffb1bcf | Gerd Hoffmann | } |
681 | 8ffb1bcf | Gerd Hoffmann | } |
682 | 8ffb1bcf | Gerd Hoffmann | |
683 | 8ffb1bcf | Gerd Hoffmann | /* find bus */
|
684 | fc98eb43 | Markus Armbruster | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
685 | fc98eb43 | Markus Armbruster | assert(0);
|
686 | fc98eb43 | Markus Armbruster | elem[0] = len = 0; |
687 | 8ffb1bcf | Gerd Hoffmann | } |
688 | 8ffb1bcf | Gerd Hoffmann | pos += len; |
689 | 8ffb1bcf | Gerd Hoffmann | bus = qbus_find_bus(dev, elem); |
690 | 8ffb1bcf | Gerd Hoffmann | if (!bus) {
|
691 | ac8dae67 | Markus Armbruster | qerror_report(QERR_BUS_NOT_FOUND, elem); |
692 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp()) {
|
693 | 8bc27249 | Markus Armbruster | qbus_list_bus(dev); |
694 | 8bc27249 | Markus Armbruster | } |
695 | 8ffb1bcf | Gerd Hoffmann | return NULL; |
696 | 8ffb1bcf | Gerd Hoffmann | } |
697 | 8ffb1bcf | Gerd Hoffmann | } |
698 | 8ffb1bcf | Gerd Hoffmann | } |
699 | 8ffb1bcf | Gerd Hoffmann | |
700 | cd739fb6 | Gerd Hoffmann | void qbus_create_inplace(BusState *bus, BusInfo *info,
|
701 | cd739fb6 | Gerd Hoffmann | DeviceState *parent, const char *name) |
702 | 02e2da45 | Paul Brook | { |
703 | d271de9f | Gerd Hoffmann | char *buf;
|
704 | d271de9f | Gerd Hoffmann | int i,len;
|
705 | 02e2da45 | Paul Brook | |
706 | 10c4c98a | Gerd Hoffmann | bus->info = info; |
707 | 02e2da45 | Paul Brook | bus->parent = parent; |
708 | d271de9f | Gerd Hoffmann | |
709 | d271de9f | Gerd Hoffmann | if (name) {
|
710 | d271de9f | Gerd Hoffmann | /* use supplied name */
|
711 | d271de9f | Gerd Hoffmann | bus->name = qemu_strdup(name); |
712 | d271de9f | Gerd Hoffmann | } else if (parent && parent->id) { |
713 | d271de9f | Gerd Hoffmann | /* parent device has id -> use it for bus name */
|
714 | d271de9f | Gerd Hoffmann | len = strlen(parent->id) + 16;
|
715 | d271de9f | Gerd Hoffmann | buf = qemu_malloc(len); |
716 | d271de9f | Gerd Hoffmann | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus);
|
717 | d271de9f | Gerd Hoffmann | bus->name = buf; |
718 | d271de9f | Gerd Hoffmann | } else {
|
719 | d271de9f | Gerd Hoffmann | /* no id -> use lowercase bus type for bus name */
|
720 | d271de9f | Gerd Hoffmann | len = strlen(info->name) + 16;
|
721 | d271de9f | Gerd Hoffmann | buf = qemu_malloc(len); |
722 | d271de9f | Gerd Hoffmann | len = snprintf(buf, len, "%s.%d", info->name,
|
723 | d271de9f | Gerd Hoffmann | parent ? parent->num_child_bus : 0);
|
724 | d271de9f | Gerd Hoffmann | for (i = 0; i < len; i++) |
725 | bb87ece5 | Christoph Egger | buf[i] = qemu_tolower(buf[i]); |
726 | d271de9f | Gerd Hoffmann | bus->name = buf; |
727 | d271de9f | Gerd Hoffmann | } |
728 | d271de9f | Gerd Hoffmann | |
729 | 72cf2d4f | Blue Swirl | QLIST_INIT(&bus->children); |
730 | 02e2da45 | Paul Brook | if (parent) {
|
731 | 72cf2d4f | Blue Swirl | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
732 | d271de9f | Gerd Hoffmann | parent->num_child_bus++; |
733 | 02e2da45 | Paul Brook | } |
734 | cd739fb6 | Gerd Hoffmann | |
735 | cd739fb6 | Gerd Hoffmann | } |
736 | cd739fb6 | Gerd Hoffmann | |
737 | cd739fb6 | Gerd Hoffmann | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) |
738 | cd739fb6 | Gerd Hoffmann | { |
739 | cd739fb6 | Gerd Hoffmann | BusState *bus; |
740 | cd739fb6 | Gerd Hoffmann | |
741 | cd739fb6 | Gerd Hoffmann | bus = qemu_mallocz(info->size); |
742 | cd739fb6 | Gerd Hoffmann | bus->qdev_allocated = 1;
|
743 | cd739fb6 | Gerd Hoffmann | qbus_create_inplace(bus, info, parent, name); |
744 | 02e2da45 | Paul Brook | return bus;
|
745 | 02e2da45 | Paul Brook | } |
746 | cae4956e | Gerd Hoffmann | |
747 | 131ec1bd | Gerd Hoffmann | void qbus_free(BusState *bus)
|
748 | 131ec1bd | Gerd Hoffmann | { |
749 | 131ec1bd | Gerd Hoffmann | DeviceState *dev; |
750 | 131ec1bd | Gerd Hoffmann | |
751 | 131ec1bd | Gerd Hoffmann | while ((dev = QLIST_FIRST(&bus->children)) != NULL) { |
752 | 131ec1bd | Gerd Hoffmann | qdev_free(dev); |
753 | 131ec1bd | Gerd Hoffmann | } |
754 | 131ec1bd | Gerd Hoffmann | if (bus->parent) {
|
755 | 131ec1bd | Gerd Hoffmann | QLIST_REMOVE(bus, sibling); |
756 | 131ec1bd | Gerd Hoffmann | bus->parent->num_child_bus--; |
757 | 131ec1bd | Gerd Hoffmann | } |
758 | e163ae7b | Isaku Yamahata | qemu_free((void*)bus->name);
|
759 | 131ec1bd | Gerd Hoffmann | if (bus->qdev_allocated) {
|
760 | 131ec1bd | Gerd Hoffmann | qemu_free(bus); |
761 | 131ec1bd | Gerd Hoffmann | } |
762 | 131ec1bd | Gerd Hoffmann | } |
763 | 131ec1bd | Gerd Hoffmann | |
764 | cae4956e | Gerd Hoffmann | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
765 | cae4956e | Gerd Hoffmann | static void qbus_print(Monitor *mon, BusState *bus, int indent); |
766 | cae4956e | Gerd Hoffmann | |
767 | ee6847d1 | Gerd Hoffmann | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
768 | ee6847d1 | Gerd Hoffmann | const char *prefix, int indent) |
769 | ee6847d1 | Gerd Hoffmann | { |
770 | ee6847d1 | Gerd Hoffmann | char buf[64]; |
771 | ee6847d1 | Gerd Hoffmann | |
772 | ee6847d1 | Gerd Hoffmann | if (!props)
|
773 | ee6847d1 | Gerd Hoffmann | return;
|
774 | ee6847d1 | Gerd Hoffmann | while (props->name) {
|
775 | 036f7166 | Markus Armbruster | /*
|
776 | 036f7166 | Markus Armbruster | * TODO Properties without a print method are just for dirty
|
777 | 036f7166 | Markus Armbruster | * hacks. qdev_prop_ptr is the only such PropertyInfo. It's
|
778 | 036f7166 | Markus Armbruster | * marked for removal. The test props->info->print should be
|
779 | 036f7166 | Markus Armbruster | * removed along with it.
|
780 | 036f7166 | Markus Armbruster | */
|
781 | ee6847d1 | Gerd Hoffmann | if (props->info->print) {
|
782 | ee6847d1 | Gerd Hoffmann | props->info->print(dev, props, buf, sizeof(buf));
|
783 | ee6847d1 | Gerd Hoffmann | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf);
|
784 | ee6847d1 | Gerd Hoffmann | } |
785 | ee6847d1 | Gerd Hoffmann | props++; |
786 | ee6847d1 | Gerd Hoffmann | } |
787 | ee6847d1 | Gerd Hoffmann | } |
788 | ee6847d1 | Gerd Hoffmann | |
789 | cae4956e | Gerd Hoffmann | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
790 | cae4956e | Gerd Hoffmann | { |
791 | cae4956e | Gerd Hoffmann | BusState *child; |
792 | ccb63de3 | Gerd Hoffmann | qdev_printf("dev: %s, id \"%s\"\n", dev->info->name,
|
793 | ccb63de3 | Gerd Hoffmann | dev->id ? dev->id : "");
|
794 | cae4956e | Gerd Hoffmann | indent += 2;
|
795 | cae4956e | Gerd Hoffmann | if (dev->num_gpio_in) {
|
796 | cae4956e | Gerd Hoffmann | qdev_printf("gpio-in %d\n", dev->num_gpio_in);
|
797 | cae4956e | Gerd Hoffmann | } |
798 | cae4956e | Gerd Hoffmann | if (dev->num_gpio_out) {
|
799 | cae4956e | Gerd Hoffmann | qdev_printf("gpio-out %d\n", dev->num_gpio_out);
|
800 | cae4956e | Gerd Hoffmann | } |
801 | ee6847d1 | Gerd Hoffmann | qdev_print_props(mon, dev, dev->info->props, "dev", indent);
|
802 | ee6847d1 | Gerd Hoffmann | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent);
|
803 | 10c4c98a | Gerd Hoffmann | if (dev->parent_bus->info->print_dev)
|
804 | 10c4c98a | Gerd Hoffmann | dev->parent_bus->info->print_dev(mon, dev, indent); |
805 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
806 | cae4956e | Gerd Hoffmann | qbus_print(mon, child, indent); |
807 | cae4956e | Gerd Hoffmann | } |
808 | cae4956e | Gerd Hoffmann | } |
809 | cae4956e | Gerd Hoffmann | |
810 | cae4956e | Gerd Hoffmann | static void qbus_print(Monitor *mon, BusState *bus, int indent) |
811 | cae4956e | Gerd Hoffmann | { |
812 | cae4956e | Gerd Hoffmann | struct DeviceState *dev;
|
813 | cae4956e | Gerd Hoffmann | |
814 | cae4956e | Gerd Hoffmann | qdev_printf("bus: %s\n", bus->name);
|
815 | cae4956e | Gerd Hoffmann | indent += 2;
|
816 | 10c4c98a | Gerd Hoffmann | qdev_printf("type %s\n", bus->info->name);
|
817 | 72cf2d4f | Blue Swirl | QLIST_FOREACH(dev, &bus->children, sibling) { |
818 | cae4956e | Gerd Hoffmann | qdev_print(mon, dev, indent); |
819 | cae4956e | Gerd Hoffmann | } |
820 | cae4956e | Gerd Hoffmann | } |
821 | cae4956e | Gerd Hoffmann | #undef qdev_printf
|
822 | cae4956e | Gerd Hoffmann | |
823 | cae4956e | Gerd Hoffmann | void do_info_qtree(Monitor *mon)
|
824 | cae4956e | Gerd Hoffmann | { |
825 | cae4956e | Gerd Hoffmann | if (main_system_bus)
|
826 | cae4956e | Gerd Hoffmann | qbus_print(mon, main_system_bus, 0);
|
827 | cae4956e | Gerd Hoffmann | } |
828 | 9316d30f | Gerd Hoffmann | |
829 | f6c64e0e | Gerd Hoffmann | void do_info_qdm(Monitor *mon)
|
830 | 9316d30f | Gerd Hoffmann | { |
831 | 9316d30f | Gerd Hoffmann | DeviceInfo *info; |
832 | 9316d30f | Gerd Hoffmann | |
833 | 9316d30f | Gerd Hoffmann | for (info = device_info_list; info != NULL; info = info->next) { |
834 | 8a9662ca | Markus Armbruster | qdev_print_devinfo(info); |
835 | 9316d30f | Gerd Hoffmann | } |
836 | 9316d30f | Gerd Hoffmann | } |
837 | 3418bd25 | Gerd Hoffmann | |
838 | 8bc27249 | Markus Armbruster | int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
839 | 3418bd25 | Gerd Hoffmann | { |
840 | 3418bd25 | Gerd Hoffmann | QemuOpts *opts; |
841 | 3418bd25 | Gerd Hoffmann | |
842 | 3329f07b | Gerd Hoffmann | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict);
|
843 | 8bc27249 | Markus Armbruster | if (!opts) {
|
844 | 8bc27249 | Markus Armbruster | return -1; |
845 | 8bc27249 | Markus Armbruster | } |
846 | 8bc27249 | Markus Armbruster | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) {
|
847 | 8bc27249 | Markus Armbruster | qemu_opts_del(opts); |
848 | 8bc27249 | Markus Armbruster | return 0; |
849 | 0f853a38 | Kevin Wolf | } |
850 | 8bc27249 | Markus Armbruster | if (!qdev_device_add(opts)) {
|
851 | 8bc27249 | Markus Armbruster | qemu_opts_del(opts); |
852 | 8bc27249 | Markus Armbruster | return -1; |
853 | 8bc27249 | Markus Armbruster | } |
854 | 8bc27249 | Markus Armbruster | return 0; |
855 | 3418bd25 | Gerd Hoffmann | } |
856 | 3418bd25 | Gerd Hoffmann | |
857 | 17a38eaa | Markus Armbruster | int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
858 | 3418bd25 | Gerd Hoffmann | { |
859 | 3418bd25 | Gerd Hoffmann | const char *id = qdict_get_str(qdict, "id"); |
860 | 3418bd25 | Gerd Hoffmann | DeviceState *dev; |
861 | 3418bd25 | Gerd Hoffmann | |
862 | 3418bd25 | Gerd Hoffmann | dev = qdev_find_recursive(main_system_bus, id); |
863 | 3418bd25 | Gerd Hoffmann | if (NULL == dev) { |
864 | 17a38eaa | Markus Armbruster | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
865 | 17a38eaa | Markus Armbruster | return -1; |
866 | 3418bd25 | Gerd Hoffmann | } |
867 | 17a38eaa | Markus Armbruster | return qdev_unplug(dev);
|
868 | 3418bd25 | Gerd Hoffmann | } |