Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Dynamic device configuration and creation. |
| 3 | * |
| 4 | * Copyright (c) 2009 CodeSourcery |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
Blue Swirl | 8167ee8 | 2009-07-16 20:47:01 +0000 | [diff] [blame] | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | /* The theory here is that it should be possible to create a machine without |
| 21 | knowledge of specific devices. Historically board init routines have |
| 22 | passed a bunch of arguments to each device, requiring the board know |
| 23 | exactly which device it is dealing with. This file provides an abstract |
| 24 | API for device configuration and initialization. Devices will generally |
| 25 | inherit from a particular bus (e.g. PCI or I2C) rather than |
| 26 | this API directly. */ |
| 27 | |
Paul Brook | 9d07d75 | 2009-05-14 22:35:07 +0100 | [diff] [blame] | 28 | #include "net.h" |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 29 | #include "qdev.h" |
| 30 | #include "sysemu.h" |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 31 | #include "monitor.h" |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 32 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 33 | static int qdev_hotplug = 0; |
Alex Williamson | 0ac8ef7 | 2011-01-04 12:37:50 -0700 | [diff] [blame] | 34 | static bool qdev_hot_added = false; |
| 35 | static bool qdev_hot_removed = false; |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 36 | |
Gerd Hoffmann | cdaed7c | 2009-10-06 21:17:52 +0200 | [diff] [blame] | 37 | /* This is a nasty hack to allow passing a NULL bus to qdev_create. */ |
Blue Swirl | b9aaf7f | 2009-06-09 18:38:51 +0000 | [diff] [blame] | 38 | static BusState *main_system_bus; |
Isaku Yamahata | 2da8bb9 | 2011-08-02 10:59:13 +0900 | [diff] [blame] | 39 | static void main_system_bus_create(void); |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 40 | |
Gerd Hoffmann | 0958b4c | 2009-10-26 15:56:45 +0100 | [diff] [blame] | 41 | DeviceInfo *device_info_list; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 42 | |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 43 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
| 44 | const BusInfo *info); |
| 45 | static BusState *qbus_find(const char *path); |
| 46 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 47 | /* Register a new device type. */ |
Gerd Hoffmann | 074f2ff | 2009-06-10 09:41:42 +0200 | [diff] [blame] | 48 | void qdev_register(DeviceInfo *info) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 49 | { |
Gerd Hoffmann | 074f2ff | 2009-06-10 09:41:42 +0200 | [diff] [blame] | 50 | assert(info->size >= sizeof(DeviceState)); |
Gerd Hoffmann | 042f84d | 2009-06-30 14:12:09 +0200 | [diff] [blame] | 51 | assert(!info->next); |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 52 | |
Gerd Hoffmann | 042f84d | 2009-06-30 14:12:09 +0200 | [diff] [blame] | 53 | info->next = device_info_list; |
| 54 | device_info_list = info; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 55 | } |
| 56 | |
Gerd Hoffmann | 81ebb98 | 2009-07-15 13:43:32 +0200 | [diff] [blame] | 57 | static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name) |
| 58 | { |
| 59 | DeviceInfo *info; |
| 60 | |
Gerd Hoffmann | 3320e56 | 2009-07-15 13:43:33 +0200 | [diff] [blame] | 61 | /* first check device names */ |
Gerd Hoffmann | 81ebb98 | 2009-07-15 13:43:32 +0200 | [diff] [blame] | 62 | for (info = device_info_list; info != NULL; info = info->next) { |
| 63 | if (bus_info && info->bus_info != bus_info) |
| 64 | continue; |
| 65 | if (strcmp(info->name, name) != 0) |
| 66 | continue; |
| 67 | return info; |
| 68 | } |
Gerd Hoffmann | 3320e56 | 2009-07-15 13:43:33 +0200 | [diff] [blame] | 69 | |
| 70 | /* failing that check the aliases */ |
| 71 | for (info = device_info_list; info != NULL; info = info->next) { |
| 72 | if (bus_info && info->bus_info != bus_info) |
| 73 | continue; |
| 74 | if (!info->alias) |
| 75 | continue; |
| 76 | if (strcmp(info->alias, name) != 0) |
| 77 | continue; |
| 78 | return info; |
| 79 | } |
Gerd Hoffmann | 81ebb98 | 2009-07-15 13:43:32 +0200 | [diff] [blame] | 80 | return NULL; |
| 81 | } |
| 82 | |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 83 | static DeviceState *qdev_create_from_info(BusState *bus, DeviceInfo *info) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 84 | { |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 85 | DeviceState *dev; |
| 86 | |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 87 | assert(bus->info == info->bus_info); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 88 | dev = g_malloc0(info->size); |
Gerd Hoffmann | 042f84d | 2009-06-30 14:12:09 +0200 | [diff] [blame] | 89 | dev->info = info; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 90 | dev->parent_bus = bus; |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 91 | qdev_prop_set_defaults(dev, dev->info->props); |
| 92 | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
Gerd Hoffmann | 458fb67 | 2009-12-08 13:11:33 +0100 | [diff] [blame] | 93 | qdev_prop_set_globals(dev); |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 94 | QTAILQ_INSERT_HEAD(&bus->children, dev, sibling); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 95 | if (qdev_hotplug) { |
| 96 | assert(bus->allow_hotplug); |
| 97 | dev->hotplugged = 1; |
Alex Williamson | 0ac8ef7 | 2011-01-04 12:37:50 -0700 | [diff] [blame] | 98 | qdev_hot_added = true; |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 99 | } |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 100 | dev->instance_id_alias = -1; |
Anthony Liguori | 44677de | 2011-12-12 14:29:26 -0600 | [diff] [blame^] | 101 | QTAILQ_INIT(&dev->properties); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 102 | dev->state = DEV_STATE_CREATED; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 103 | return dev; |
| 104 | } |
| 105 | |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 106 | /* Create a new device. This only initializes the device state structure |
| 107 | and allows properties to be set. qdev_init should be called to |
| 108 | initialize the actual device emulation. */ |
| 109 | DeviceState *qdev_create(BusState *bus, const char *name) |
| 110 | { |
Blue Swirl | 0bcdeda | 2011-02-05 14:34:25 +0000 | [diff] [blame] | 111 | DeviceState *dev; |
| 112 | |
| 113 | dev = qdev_try_create(bus, name); |
| 114 | if (!dev) { |
Peter Maydell | e92714c | 2011-08-03 23:49:04 +0100 | [diff] [blame] | 115 | if (bus) { |
| 116 | hw_error("Unknown device '%s' for bus '%s'\n", name, |
| 117 | bus->info->name); |
| 118 | } else { |
| 119 | hw_error("Unknown device '%s' for default sysbus\n", name); |
| 120 | } |
Blue Swirl | 0bcdeda | 2011-02-05 14:34:25 +0000 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | return dev; |
| 124 | } |
| 125 | |
| 126 | DeviceState *qdev_try_create(BusState *bus, const char *name) |
| 127 | { |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 128 | DeviceInfo *info; |
| 129 | |
| 130 | if (!bus) { |
Stefan Weil | 6869489 | 2010-12-16 19:33:22 +0100 | [diff] [blame] | 131 | bus = sysbus_get_default(); |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 132 | } |
| 133 | |
| 134 | info = qdev_find_info(bus->info, name); |
| 135 | if (!info) { |
Blue Swirl | 0bcdeda | 2011-02-05 14:34:25 +0000 | [diff] [blame] | 136 | return NULL; |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 137 | } |
| 138 | |
| 139 | return qdev_create_from_info(bus, info); |
| 140 | } |
| 141 | |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 142 | static void qdev_print_devinfo(DeviceInfo *info) |
Gerd Hoffmann | 1b524b0 | 2009-07-29 13:12:23 +0200 | [diff] [blame] | 143 | { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 144 | error_printf("name \"%s\", bus %s", |
| 145 | info->name, info->bus_info->name); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 146 | if (info->alias) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 147 | error_printf(", alias \"%s\"", info->alias); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 148 | } |
| 149 | if (info->desc) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 150 | error_printf(", desc \"%s\"", info->desc); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 151 | } |
| 152 | if (info->no_user) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 153 | error_printf(", no-user"); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 154 | } |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 155 | error_printf("\n"); |
Gerd Hoffmann | 1b524b0 | 2009-07-29 13:12:23 +0200 | [diff] [blame] | 156 | } |
| 157 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 158 | static int set_property(const char *name, const char *value, void *opaque) |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 159 | { |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 160 | DeviceState *dev = opaque; |
| 161 | |
| 162 | if (strcmp(name, "driver") == 0) |
| 163 | return 0; |
| 164 | if (strcmp(name, "bus") == 0) |
| 165 | return 0; |
| 166 | |
Mark McLoughlin | 3df04ac | 2009-09-23 11:24:05 +0100 | [diff] [blame] | 167 | if (qdev_prop_parse(dev, name, value) == -1) { |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 168 | return -1; |
| 169 | } |
| 170 | return 0; |
| 171 | } |
| 172 | |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 173 | int qdev_device_help(QemuOpts *opts) |
| 174 | { |
| 175 | const char *driver; |
| 176 | DeviceInfo *info; |
Markus Armbruster | 08350cf | 2010-01-29 19:49:00 +0100 | [diff] [blame] | 177 | Property *prop; |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 178 | |
| 179 | driver = qemu_opt_get(opts, "driver"); |
| 180 | if (driver && !strcmp(driver, "?")) { |
| 181 | for (info = device_info_list; info != NULL; info = info->next) { |
Markus Armbruster | c64eafa | 2010-02-19 13:31:49 +0100 | [diff] [blame] | 182 | if (info->no_user) { |
| 183 | continue; /* not available, don't show */ |
| 184 | } |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 185 | qdev_print_devinfo(info); |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 186 | } |
| 187 | return 1; |
| 188 | } |
| 189 | |
Markus Armbruster | 542379f | 2011-11-08 11:00:38 +0100 | [diff] [blame] | 190 | if (!driver || !qemu_opt_get(opts, "?")) { |
Markus Armbruster | 08350cf | 2010-01-29 19:49:00 +0100 | [diff] [blame] | 191 | return 0; |
| 192 | } |
| 193 | |
| 194 | info = qdev_find_info(NULL, driver); |
| 195 | if (!info) { |
| 196 | return 0; |
| 197 | } |
| 198 | |
| 199 | for (prop = info->props; prop && prop->name; prop++) { |
Markus Armbruster | 036f716 | 2010-02-19 11:47:06 +0100 | [diff] [blame] | 200 | /* |
| 201 | * TODO Properties without a parser are just for dirty hacks. |
| 202 | * qdev_prop_ptr is the only such PropertyInfo. It's marked |
| 203 | * for removal. This conditional should be removed along with |
| 204 | * it. |
| 205 | */ |
| 206 | if (!prop->info->parse) { |
| 207 | continue; /* no way to set it, don't show */ |
| 208 | } |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 209 | error_printf("%s.%s=%s\n", info->name, prop->name, prop->info->name); |
Markus Armbruster | 08350cf | 2010-01-29 19:49:00 +0100 | [diff] [blame] | 210 | } |
Gerd Hoffmann | a8467c7 | 2011-09-16 11:25:05 +0200 | [diff] [blame] | 211 | for (prop = info->bus_info->props; prop && prop->name; prop++) { |
| 212 | if (!prop->info->parse) { |
| 213 | continue; /* no way to set it, don't show */ |
| 214 | } |
| 215 | error_printf("%s.%s=%s\n", info->name, prop->name, prop->info->name); |
| 216 | } |
Markus Armbruster | 08350cf | 2010-01-29 19:49:00 +0100 | [diff] [blame] | 217 | return 1; |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 218 | } |
| 219 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 220 | DeviceState *qdev_device_add(QemuOpts *opts) |
| 221 | { |
| 222 | const char *driver, *path, *id; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 223 | DeviceInfo *info; |
| 224 | DeviceState *qdev; |
| 225 | BusState *bus; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 226 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 227 | driver = qemu_opt_get(opts, "driver"); |
| 228 | if (!driver) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 229 | qerror_report(QERR_MISSING_PARAMETER, "driver"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 230 | return NULL; |
| 231 | } |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 232 | |
| 233 | /* find driver */ |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 234 | info = qdev_find_info(NULL, driver); |
Markus Armbruster | c64eafa | 2010-02-19 13:31:49 +0100 | [diff] [blame] | 235 | if (!info || info->no_user) { |
Markus Armbruster | e17ba87 | 2010-03-25 17:22:36 +0100 | [diff] [blame] | 236 | qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "a driver name"); |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 237 | error_printf_unless_qmp("Try with argument '?' for a list.\n"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 238 | return NULL; |
| 239 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 240 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 241 | /* find bus */ |
| 242 | path = qemu_opt_get(opts, "bus"); |
| 243 | if (path != NULL) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 244 | bus = qbus_find(path); |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 245 | if (!bus) { |
| 246 | return NULL; |
| 247 | } |
| 248 | if (bus->info != info->bus_info) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 249 | qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
| 250 | driver, bus->info->name); |
Markus Armbruster | 327867b | 2010-02-19 19:08:45 +0100 | [diff] [blame] | 251 | return NULL; |
| 252 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 253 | } else { |
| 254 | bus = qbus_find_recursive(main_system_bus, NULL, info->bus_info); |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 255 | if (!bus) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 256 | qerror_report(QERR_NO_BUS_FOR_DEVICE, |
| 257 | info->name, info->bus_info->name); |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 258 | return NULL; |
| 259 | } |
Gerd Hoffmann | 7557008 | 2009-08-31 14:23:58 +0200 | [diff] [blame] | 260 | } |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 261 | if (qdev_hotplug && !bus->allow_hotplug) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 262 | qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 263 | return NULL; |
| 264 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 265 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 266 | /* create device, set properties */ |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 267 | qdev = qdev_create_from_info(bus, info); |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 268 | id = qemu_opts_id(opts); |
| 269 | if (id) { |
| 270 | qdev->id = id; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 271 | } |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 272 | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
| 273 | qdev_free(qdev); |
| 274 | return NULL; |
| 275 | } |
Markus Armbruster | 5c17ca2 | 2009-10-07 01:16:01 +0200 | [diff] [blame] | 276 | if (qdev_init(qdev) < 0) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 277 | qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
Gerd Hoffmann | 81a322d | 2009-08-14 10:36:05 +0200 | [diff] [blame] | 278 | return NULL; |
| 279 | } |
Gerd Hoffmann | ef80b46 | 2009-09-25 21:42:49 +0200 | [diff] [blame] | 280 | qdev->opts = opts; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 281 | return qdev; |
| 282 | } |
| 283 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 284 | /* Initialize a device. Device properties should be set before calling |
| 285 | this function. IRQs and MMIO regions should be connected/mapped after |
Markus Armbruster | 18cfeb5 | 2009-10-07 01:15:56 +0200 | [diff] [blame] | 286 | calling this function. |
| 287 | On failure, destroy the device and return negative value. |
| 288 | Return 0 on success. */ |
Gerd Hoffmann | 81a322d | 2009-08-14 10:36:05 +0200 | [diff] [blame] | 289 | int qdev_init(DeviceState *dev) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 290 | { |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 291 | int rc; |
| 292 | |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 293 | assert(dev->state == DEV_STATE_CREATED); |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 294 | rc = dev->info->init(dev, dev->info); |
Markus Armbruster | 18cfeb5 | 2009-10-07 01:15:56 +0200 | [diff] [blame] | 295 | if (rc < 0) { |
| 296 | qdev_free(dev); |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 297 | return rc; |
Markus Armbruster | 18cfeb5 | 2009-10-07 01:15:56 +0200 | [diff] [blame] | 298 | } |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 299 | if (dev->info->vmsd) { |
Alex Williamson | 0be71e3 | 2010-06-25 11:09:07 -0600 | [diff] [blame] | 300 | vmstate_register_with_alias_id(dev, -1, dev->info->vmsd, dev, |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 301 | dev->instance_id_alias, |
| 302 | dev->alias_required_for_version); |
| 303 | } |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 304 | dev->state = DEV_STATE_INITIALIZED; |
Jan Kiszka | 5ab28c8 | 2011-07-24 19:38:36 +0200 | [diff] [blame] | 305 | if (dev->hotplugged && dev->info->reset) { |
| 306 | dev->info->reset(dev); |
| 307 | } |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 308 | return 0; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 309 | } |
| 310 | |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 311 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
| 312 | int required_for_version) |
| 313 | { |
| 314 | assert(dev->state == DEV_STATE_CREATED); |
| 315 | dev->instance_id_alias = alias_id; |
| 316 | dev->alias_required_for_version = required_for_version; |
| 317 | } |
| 318 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 319 | int qdev_unplug(DeviceState *dev) |
| 320 | { |
| 321 | if (!dev->parent_bus->allow_hotplug) { |
Markus Armbruster | cc601cb | 2010-03-22 11:38:13 +0100 | [diff] [blame] | 322 | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 323 | return -1; |
| 324 | } |
Amit Shah | 593831d | 2009-11-02 14:56:41 +0530 | [diff] [blame] | 325 | assert(dev->info->unplug != NULL); |
| 326 | |
Anthony Liguori | 85ed303 | 2011-12-12 14:29:25 -0600 | [diff] [blame] | 327 | if (dev->ref != 0) { |
| 328 | qerror_report(QERR_DEVICE_IN_USE, dev->id?:""); |
| 329 | return -1; |
| 330 | } |
| 331 | |
Alex Williamson | 0ac8ef7 | 2011-01-04 12:37:50 -0700 | [diff] [blame] | 332 | qdev_hot_removed = true; |
| 333 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 334 | return dev->info->unplug(dev); |
| 335 | } |
| 336 | |
Anthony Liguori | ec990eb | 2010-11-19 18:55:59 +0900 | [diff] [blame] | 337 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
| 338 | { |
| 339 | if (dev->info->reset) { |
| 340 | dev->info->reset(dev); |
| 341 | } |
| 342 | |
| 343 | return 0; |
| 344 | } |
| 345 | |
| 346 | BusState *sysbus_get_default(void) |
| 347 | { |
Stefan Weil | 6869489 | 2010-12-16 19:33:22 +0100 | [diff] [blame] | 348 | if (!main_system_bus) { |
Isaku Yamahata | 2da8bb9 | 2011-08-02 10:59:13 +0900 | [diff] [blame] | 349 | main_system_bus_create(); |
Stefan Weil | 6869489 | 2010-12-16 19:33:22 +0100 | [diff] [blame] | 350 | } |
Anthony Liguori | ec990eb | 2010-11-19 18:55:59 +0900 | [diff] [blame] | 351 | return main_system_bus; |
| 352 | } |
| 353 | |
Isaku Yamahata | b4694b7 | 2010-11-19 18:56:00 +0900 | [diff] [blame] | 354 | static int qbus_reset_one(BusState *bus, void *opaque) |
| 355 | { |
| 356 | if (bus->info->reset) { |
| 357 | return bus->info->reset(bus); |
| 358 | } |
| 359 | return 0; |
| 360 | } |
| 361 | |
Isaku Yamahata | 5af0a04 | 2010-11-19 18:56:01 +0900 | [diff] [blame] | 362 | void qdev_reset_all(DeviceState *dev) |
| 363 | { |
| 364 | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL); |
| 365 | } |
| 366 | |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 367 | void qbus_reset_all_fn(void *opaque) |
| 368 | { |
| 369 | BusState *bus = opaque; |
Michael S. Tsirkin | f530cce | 2010-12-20 15:17:10 +0200 | [diff] [blame] | 370 | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL); |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 371 | } |
| 372 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 373 | /* can be used as ->unplug() callback for the simple cases */ |
| 374 | int qdev_simple_unplug_cb(DeviceState *dev) |
| 375 | { |
| 376 | /* just zap it */ |
| 377 | qdev_free(dev); |
| 378 | return 0; |
| 379 | } |
| 380 | |
Michael Tokarev | 3b29a10 | 2011-04-06 17:51:59 +0400 | [diff] [blame] | 381 | |
| 382 | /* Like qdev_init(), but terminate program via error_report() instead of |
Markus Armbruster | e23a1b3 | 2009-10-07 01:15:58 +0200 | [diff] [blame] | 383 | returning an error value. This is okay during machine creation. |
| 384 | Don't use for hotplug, because there callers need to recover from |
| 385 | failure. Exception: if you know the device's init() callback can't |
| 386 | fail, then qdev_init_nofail() can't fail either, and is therefore |
| 387 | usable even then. But relying on the device implementation that |
| 388 | way is somewhat unclean, and best avoided. */ |
| 389 | void qdev_init_nofail(DeviceState *dev) |
| 390 | { |
| 391 | DeviceInfo *info = dev->info; |
| 392 | |
Markus Armbruster | bd6c9a6 | 2010-05-27 21:23:08 +0200 | [diff] [blame] | 393 | if (qdev_init(dev) < 0) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 394 | error_report("Initialization of device %s failed", info->name); |
Markus Armbruster | bd6c9a6 | 2010-05-27 21:23:08 +0200 | [diff] [blame] | 395 | exit(1); |
| 396 | } |
Markus Armbruster | e23a1b3 | 2009-10-07 01:15:58 +0200 | [diff] [blame] | 397 | } |
| 398 | |
Anthony Liguori | 44677de | 2011-12-12 14:29:26 -0600 | [diff] [blame^] | 399 | static void qdev_property_del_all(DeviceState *dev) |
| 400 | { |
| 401 | while (!QTAILQ_EMPTY(&dev->properties)) { |
| 402 | DeviceProperty *prop = QTAILQ_FIRST(&dev->properties); |
| 403 | |
| 404 | QTAILQ_REMOVE(&dev->properties, prop, node); |
| 405 | |
| 406 | if (prop->release) { |
| 407 | prop->release(dev, prop->name, prop->opaque); |
| 408 | } |
| 409 | |
| 410 | g_free(prop->name); |
| 411 | g_free(prop->type); |
| 412 | g_free(prop); |
| 413 | } |
| 414 | } |
| 415 | |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 416 | /* Unlink device from bus and free the structure. */ |
| 417 | void qdev_free(DeviceState *dev) |
| 418 | { |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 419 | BusState *bus; |
Markus Armbruster | d21357d | 2010-06-01 20:32:31 +0200 | [diff] [blame] | 420 | Property *prop; |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 421 | |
Anthony Liguori | 44677de | 2011-12-12 14:29:26 -0600 | [diff] [blame^] | 422 | qdev_property_del_all(dev); |
| 423 | |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 424 | if (dev->state == DEV_STATE_INITIALIZED) { |
| 425 | while (dev->num_child_bus) { |
| 426 | bus = QLIST_FIRST(&dev->child_bus); |
| 427 | qbus_free(bus); |
| 428 | } |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 429 | if (dev->info->vmsd) |
Alex Williamson | 0be71e3 | 2010-06-25 11:09:07 -0600 | [diff] [blame] | 430 | vmstate_unregister(dev, dev->info->vmsd, dev); |
Gerd Hoffmann | d29275f | 2009-09-25 21:42:35 +0200 | [diff] [blame] | 431 | if (dev->info->exit) |
| 432 | dev->info->exit(dev); |
Gerd Hoffmann | ef80b46 | 2009-09-25 21:42:49 +0200 | [diff] [blame] | 433 | if (dev->opts) |
| 434 | qemu_opts_del(dev->opts); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 435 | } |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 436 | QTAILQ_REMOVE(&dev->parent_bus->children, dev, sibling); |
Markus Armbruster | d21357d | 2010-06-01 20:32:31 +0200 | [diff] [blame] | 437 | for (prop = dev->info->props; prop && prop->name; prop++) { |
| 438 | if (prop->info->free) { |
| 439 | prop->info->free(dev, prop); |
| 440 | } |
| 441 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 442 | g_free(dev); |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 443 | } |
| 444 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 445 | void qdev_machine_creation_done(void) |
| 446 | { |
| 447 | /* |
| 448 | * ok, initial machine setup is done, starting from now we can |
| 449 | * only create hotpluggable devices |
| 450 | */ |
| 451 | qdev_hotplug = 1; |
| 452 | } |
| 453 | |
Alex Williamson | 0ac8ef7 | 2011-01-04 12:37:50 -0700 | [diff] [blame] | 454 | bool qdev_machine_modified(void) |
| 455 | { |
| 456 | return qdev_hot_added || qdev_hot_removed; |
| 457 | } |
| 458 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 459 | /* Get a character (serial) device interface. */ |
| 460 | CharDriverState *qdev_init_chardev(DeviceState *dev) |
| 461 | { |
| 462 | static int next_serial; |
Amit Shah | 98b1925 | 2010-01-20 00:36:52 +0530 | [diff] [blame] | 463 | |
| 464 | /* FIXME: This function needs to go away: use chardev properties! */ |
| 465 | return serial_hds[next_serial++]; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 466 | } |
| 467 | |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 468 | BusState *qdev_get_parent_bus(DeviceState *dev) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 469 | { |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 470 | return dev->parent_bus; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 471 | } |
| 472 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 473 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
| 474 | { |
| 475 | assert(dev->num_gpio_in == 0); |
| 476 | dev->num_gpio_in = n; |
| 477 | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); |
| 478 | } |
| 479 | |
| 480 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
| 481 | { |
| 482 | assert(dev->num_gpio_out == 0); |
| 483 | dev->num_gpio_out = n; |
| 484 | dev->gpio_out = pins; |
| 485 | } |
| 486 | |
| 487 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) |
| 488 | { |
| 489 | assert(n >= 0 && n < dev->num_gpio_in); |
| 490 | return dev->gpio_in[n]; |
| 491 | } |
| 492 | |
| 493 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
| 494 | { |
| 495 | assert(n >= 0 && n < dev->num_gpio_out); |
| 496 | dev->gpio_out[n] = pin; |
| 497 | } |
| 498 | |
Gerd Hoffmann | ed16ab5 | 2009-10-21 15:25:26 +0200 | [diff] [blame] | 499 | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd) |
| 500 | { |
Jan Kiszka | 6eed185 | 2011-07-20 12:20:22 +0200 | [diff] [blame] | 501 | qdev_prop_set_macaddr(dev, "mac", nd->macaddr.a); |
Gerd Hoffmann | ed16ab5 | 2009-10-21 15:25:26 +0200 | [diff] [blame] | 502 | if (nd->vlan) |
| 503 | qdev_prop_set_vlan(dev, "vlan", nd->vlan); |
| 504 | if (nd->netdev) |
| 505 | qdev_prop_set_netdev(dev, "netdev", nd->netdev); |
Amit Shah | 75422b0 | 2010-02-25 17:24:43 +0530 | [diff] [blame] | 506 | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && |
Gerd Hoffmann | 97b1562 | 2009-10-21 15:25:35 +0200 | [diff] [blame] | 507 | qdev_prop_exists(dev, "vectors")) { |
| 508 | qdev_prop_set_uint32(dev, "vectors", nd->nvectors); |
| 509 | } |
Peter Maydell | 48e2faf | 2011-05-20 16:50:01 +0100 | [diff] [blame] | 510 | nd->instantiated = 1; |
Gerd Hoffmann | ed16ab5 | 2009-10-21 15:25:26 +0200 | [diff] [blame] | 511 | } |
| 512 | |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 513 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 514 | { |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 515 | BusState *bus; |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 516 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 517 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 518 | if (strcmp(name, bus->name) == 0) { |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 519 | return bus; |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 520 | } |
| 521 | } |
| 522 | return NULL; |
| 523 | } |
| 524 | |
Anthony Liguori | 81699d8 | 2010-11-19 18:55:58 +0900 | [diff] [blame] | 525 | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn, |
| 526 | qbus_walkerfn *busfn, void *opaque) |
| 527 | { |
| 528 | DeviceState *dev; |
| 529 | int err; |
| 530 | |
| 531 | if (busfn) { |
| 532 | err = busfn(bus, opaque); |
| 533 | if (err) { |
| 534 | return err; |
| 535 | } |
| 536 | } |
| 537 | |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 538 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Anthony Liguori | 81699d8 | 2010-11-19 18:55:58 +0900 | [diff] [blame] | 539 | err = qdev_walk_children(dev, devfn, busfn, opaque); |
| 540 | if (err < 0) { |
| 541 | return err; |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | return 0; |
| 546 | } |
| 547 | |
| 548 | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn, |
| 549 | qbus_walkerfn *busfn, void *opaque) |
| 550 | { |
| 551 | BusState *bus; |
| 552 | int err; |
| 553 | |
| 554 | if (devfn) { |
| 555 | err = devfn(dev, opaque); |
| 556 | if (err) { |
| 557 | return err; |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
| 562 | err = qbus_walk_children(bus, devfn, busfn, opaque); |
| 563 | if (err < 0) { |
| 564 | return err; |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | return 0; |
| 569 | } |
| 570 | |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 571 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
| 572 | const BusInfo *info) |
| 573 | { |
| 574 | DeviceState *dev; |
| 575 | BusState *child, *ret; |
| 576 | int match = 1; |
| 577 | |
| 578 | if (name && (strcmp(bus->name, name) != 0)) { |
| 579 | match = 0; |
| 580 | } |
| 581 | if (info && (bus->info != info)) { |
| 582 | match = 0; |
| 583 | } |
| 584 | if (match) { |
| 585 | return bus; |
| 586 | } |
| 587 | |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 588 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 589 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 590 | ret = qbus_find_recursive(child, name, info); |
| 591 | if (ret) { |
| 592 | return ret; |
| 593 | } |
| 594 | } |
| 595 | } |
| 596 | return NULL; |
| 597 | } |
| 598 | |
Isaku Yamahata | a2ee6b4 | 2010-12-24 12:14:12 +0900 | [diff] [blame] | 599 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 600 | { |
| 601 | DeviceState *dev, *ret; |
| 602 | BusState *child; |
| 603 | |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 604 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 605 | if (dev->id && strcmp(dev->id, id) == 0) |
| 606 | return dev; |
| 607 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
| 608 | ret = qdev_find_recursive(child, id); |
| 609 | if (ret) { |
| 610 | return ret; |
| 611 | } |
| 612 | } |
| 613 | } |
| 614 | return NULL; |
| 615 | } |
| 616 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 617 | static void qbus_list_bus(DeviceState *dev) |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 618 | { |
| 619 | BusState *child; |
| 620 | const char *sep = " "; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 621 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 622 | error_printf("child busses at \"%s\":", |
| 623 | dev->id ? dev->id : dev->info->name); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 624 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 625 | error_printf("%s\"%s\"", sep, child->name); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 626 | sep = ", "; |
| 627 | } |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 628 | error_printf("\n"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 629 | } |
| 630 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 631 | static void qbus_list_dev(BusState *bus) |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 632 | { |
| 633 | DeviceState *dev; |
| 634 | const char *sep = " "; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 635 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 636 | error_printf("devices at \"%s\":", bus->name); |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 637 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 638 | error_printf("%s\"%s\"", sep, dev->info->name); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 639 | if (dev->id) |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 640 | error_printf("/\"%s\"", dev->id); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 641 | sep = ", "; |
| 642 | } |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 643 | error_printf("\n"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | static BusState *qbus_find_bus(DeviceState *dev, char *elem) |
| 647 | { |
| 648 | BusState *child; |
| 649 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 650 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 651 | if (strcmp(child->name, elem) == 0) { |
| 652 | return child; |
| 653 | } |
| 654 | } |
| 655 | return NULL; |
| 656 | } |
| 657 | |
| 658 | static DeviceState *qbus_find_dev(BusState *bus, char *elem) |
| 659 | { |
| 660 | DeviceState *dev; |
| 661 | |
| 662 | /* |
| 663 | * try to match in order: |
| 664 | * (1) instance id, if present |
| 665 | * (2) driver name |
| 666 | * (3) driver alias, if present |
| 667 | */ |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 668 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 669 | if (dev->id && strcmp(dev->id, elem) == 0) { |
| 670 | return dev; |
| 671 | } |
| 672 | } |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 673 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 674 | if (strcmp(dev->info->name, elem) == 0) { |
| 675 | return dev; |
| 676 | } |
| 677 | } |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 678 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 679 | if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) { |
| 680 | return dev; |
| 681 | } |
| 682 | } |
| 683 | return NULL; |
| 684 | } |
| 685 | |
| 686 | static BusState *qbus_find(const char *path) |
| 687 | { |
| 688 | DeviceState *dev; |
| 689 | BusState *bus; |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 690 | char elem[128]; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 691 | int pos, len; |
| 692 | |
| 693 | /* find start element */ |
| 694 | if (path[0] == '/') { |
| 695 | bus = main_system_bus; |
| 696 | pos = 0; |
| 697 | } else { |
| 698 | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 699 | assert(!path[0]); |
| 700 | elem[0] = len = 0; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 701 | } |
| 702 | bus = qbus_find_recursive(main_system_bus, elem, NULL); |
| 703 | if (!bus) { |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 704 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 705 | return NULL; |
| 706 | } |
| 707 | pos = len; |
| 708 | } |
| 709 | |
| 710 | for (;;) { |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 711 | assert(path[pos] == '/' || !path[pos]); |
| 712 | while (path[pos] == '/') { |
| 713 | pos++; |
| 714 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 715 | if (path[pos] == '\0') { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 716 | return bus; |
| 717 | } |
| 718 | |
| 719 | /* find device */ |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 720 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
| 721 | assert(0); |
| 722 | elem[0] = len = 0; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 723 | } |
| 724 | pos += len; |
| 725 | dev = qbus_find_dev(bus, elem); |
| 726 | if (!dev) { |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 727 | qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 728 | if (!monitor_cur_is_qmp()) { |
| 729 | qbus_list_dev(bus); |
| 730 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 731 | return NULL; |
| 732 | } |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 733 | |
| 734 | assert(path[pos] == '/' || !path[pos]); |
| 735 | while (path[pos] == '/') { |
| 736 | pos++; |
| 737 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 738 | if (path[pos] == '\0') { |
| 739 | /* last specified element is a device. If it has exactly |
| 740 | * one child bus accept it nevertheless */ |
| 741 | switch (dev->num_child_bus) { |
| 742 | case 0: |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 743 | qerror_report(QERR_DEVICE_NO_BUS, elem); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 744 | return NULL; |
| 745 | case 1: |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 746 | return QLIST_FIRST(&dev->child_bus); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 747 | default: |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 748 | qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 749 | if (!monitor_cur_is_qmp()) { |
| 750 | qbus_list_bus(dev); |
| 751 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 752 | return NULL; |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | /* find bus */ |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 757 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
| 758 | assert(0); |
| 759 | elem[0] = len = 0; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 760 | } |
| 761 | pos += len; |
| 762 | bus = qbus_find_bus(dev, elem); |
| 763 | if (!bus) { |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 764 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 765 | if (!monitor_cur_is_qmp()) { |
| 766 | qbus_list_bus(dev); |
| 767 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 768 | return NULL; |
| 769 | } |
| 770 | } |
| 771 | } |
| 772 | |
Gerd Hoffmann | cd739fb | 2009-09-16 22:25:27 +0200 | [diff] [blame] | 773 | void qbus_create_inplace(BusState *bus, BusInfo *info, |
| 774 | DeviceState *parent, const char *name) |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 775 | { |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 776 | char *buf; |
| 777 | int i,len; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 778 | |
Gerd Hoffmann | 10c4c98 | 2009-06-30 14:12:08 +0200 | [diff] [blame] | 779 | bus->info = info; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 780 | bus->parent = parent; |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 781 | |
| 782 | if (name) { |
| 783 | /* use supplied name */ |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 784 | bus->name = g_strdup(name); |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 785 | } else if (parent && parent->id) { |
| 786 | /* parent device has id -> use it for bus name */ |
| 787 | len = strlen(parent->id) + 16; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 788 | buf = g_malloc(len); |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 789 | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus); |
| 790 | bus->name = buf; |
| 791 | } else { |
| 792 | /* no id -> use lowercase bus type for bus name */ |
| 793 | len = strlen(info->name) + 16; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 794 | buf = g_malloc(len); |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 795 | len = snprintf(buf, len, "%s.%d", info->name, |
| 796 | parent ? parent->num_child_bus : 0); |
| 797 | for (i = 0; i < len; i++) |
Christoph Egger | bb87ece | 2009-07-30 15:28:45 +0200 | [diff] [blame] | 798 | buf[i] = qemu_tolower(buf[i]); |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 799 | bus->name = buf; |
| 800 | } |
| 801 | |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 802 | QTAILQ_INIT(&bus->children); |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 803 | if (parent) { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 804 | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 805 | parent->num_child_bus++; |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 806 | } else if (bus != main_system_bus) { |
| 807 | /* TODO: once all bus devices are qdevified, |
| 808 | only reset handler for main_system_bus should be registered here. */ |
| 809 | qemu_register_reset(qbus_reset_all_fn, bus); |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 810 | } |
Gerd Hoffmann | cd739fb | 2009-09-16 22:25:27 +0200 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) |
| 814 | { |
| 815 | BusState *bus; |
| 816 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 817 | bus = g_malloc0(info->size); |
Gerd Hoffmann | cd739fb | 2009-09-16 22:25:27 +0200 | [diff] [blame] | 818 | bus->qdev_allocated = 1; |
| 819 | qbus_create_inplace(bus, info, parent, name); |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 820 | return bus; |
| 821 | } |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 822 | |
Isaku Yamahata | 2da8bb9 | 2011-08-02 10:59:13 +0900 | [diff] [blame] | 823 | static void main_system_bus_create(void) |
| 824 | { |
| 825 | /* assign main_system_bus before qbus_create_inplace() |
| 826 | * in order to make "if (bus != main_system_bus)" work */ |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 827 | main_system_bus = g_malloc0(system_bus_info.size); |
Isaku Yamahata | 2da8bb9 | 2011-08-02 10:59:13 +0900 | [diff] [blame] | 828 | main_system_bus->qdev_allocated = 1; |
| 829 | qbus_create_inplace(main_system_bus, &system_bus_info, NULL, |
| 830 | "main-system-bus"); |
| 831 | } |
| 832 | |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 833 | void qbus_free(BusState *bus) |
| 834 | { |
| 835 | DeviceState *dev; |
| 836 | |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 837 | while ((dev = QTAILQ_FIRST(&bus->children)) != NULL) { |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 838 | qdev_free(dev); |
| 839 | } |
| 840 | if (bus->parent) { |
| 841 | QLIST_REMOVE(bus, sibling); |
| 842 | bus->parent->num_child_bus--; |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 843 | } else { |
| 844 | assert(bus != main_system_bus); /* main_system_bus is never freed */ |
| 845 | qemu_unregister_reset(qbus_reset_all_fn, bus); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 846 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 847 | g_free((void*)bus->name); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 848 | if (bus->qdev_allocated) { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 849 | g_free(bus); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 850 | } |
| 851 | } |
| 852 | |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 853 | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
| 854 | static void qbus_print(Monitor *mon, BusState *bus, int indent); |
| 855 | |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 856 | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
| 857 | const char *prefix, int indent) |
| 858 | { |
| 859 | char buf[64]; |
| 860 | |
| 861 | if (!props) |
| 862 | return; |
| 863 | while (props->name) { |
Markus Armbruster | 036f716 | 2010-02-19 11:47:06 +0100 | [diff] [blame] | 864 | /* |
| 865 | * TODO Properties without a print method are just for dirty |
| 866 | * hacks. qdev_prop_ptr is the only such PropertyInfo. It's |
| 867 | * marked for removal. The test props->info->print should be |
| 868 | * removed along with it. |
| 869 | */ |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 870 | if (props->info->print) { |
| 871 | props->info->print(dev, props, buf, sizeof(buf)); |
| 872 | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf); |
| 873 | } |
| 874 | props++; |
| 875 | } |
| 876 | } |
| 877 | |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 878 | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
| 879 | { |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 880 | BusState *child; |
Gerd Hoffmann | ccb63de | 2009-07-15 13:43:34 +0200 | [diff] [blame] | 881 | qdev_printf("dev: %s, id \"%s\"\n", dev->info->name, |
| 882 | dev->id ? dev->id : ""); |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 883 | indent += 2; |
| 884 | if (dev->num_gpio_in) { |
| 885 | qdev_printf("gpio-in %d\n", dev->num_gpio_in); |
| 886 | } |
| 887 | if (dev->num_gpio_out) { |
| 888 | qdev_printf("gpio-out %d\n", dev->num_gpio_out); |
| 889 | } |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 890 | qdev_print_props(mon, dev, dev->info->props, "dev", indent); |
| 891 | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent); |
Gerd Hoffmann | 10c4c98 | 2009-06-30 14:12:08 +0200 | [diff] [blame] | 892 | if (dev->parent_bus->info->print_dev) |
| 893 | dev->parent_bus->info->print_dev(mon, dev, indent); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 894 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 895 | qbus_print(mon, child, indent); |
| 896 | } |
| 897 | } |
| 898 | |
| 899 | static void qbus_print(Monitor *mon, BusState *bus, int indent) |
| 900 | { |
| 901 | struct DeviceState *dev; |
| 902 | |
| 903 | qdev_printf("bus: %s\n", bus->name); |
| 904 | indent += 2; |
Gerd Hoffmann | 10c4c98 | 2009-06-30 14:12:08 +0200 | [diff] [blame] | 905 | qdev_printf("type %s\n", bus->info->name); |
Paolo Bonzini | d8bb00d | 2011-09-14 09:28:06 +0200 | [diff] [blame] | 906 | QTAILQ_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 907 | qdev_print(mon, dev, indent); |
| 908 | } |
| 909 | } |
| 910 | #undef qdev_printf |
| 911 | |
| 912 | void do_info_qtree(Monitor *mon) |
| 913 | { |
| 914 | if (main_system_bus) |
| 915 | qbus_print(mon, main_system_bus, 0); |
| 916 | } |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 917 | |
Gerd Hoffmann | f6c64e0 | 2009-08-03 15:03:09 +0200 | [diff] [blame] | 918 | void do_info_qdm(Monitor *mon) |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 919 | { |
| 920 | DeviceInfo *info; |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 921 | |
| 922 | for (info = device_info_list; info != NULL; info = info->next) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 923 | qdev_print_devinfo(info); |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 924 | } |
| 925 | } |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 926 | |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 927 | int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 928 | { |
| 929 | QemuOpts *opts; |
| 930 | |
Gerd Hoffmann | 3329f07 | 2010-08-20 13:52:01 +0200 | [diff] [blame] | 931 | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 932 | if (!opts) { |
| 933 | return -1; |
Kevin Wolf | 0f853a3 | 2010-02-16 13:12:38 +0100 | [diff] [blame] | 934 | } |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 935 | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) { |
| 936 | qemu_opts_del(opts); |
| 937 | return 0; |
| 938 | } |
| 939 | if (!qdev_device_add(opts)) { |
| 940 | qemu_opts_del(opts); |
| 941 | return -1; |
| 942 | } |
| 943 | return 0; |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 944 | } |
| 945 | |
Markus Armbruster | 17a38ea | 2010-03-22 11:38:14 +0100 | [diff] [blame] | 946 | int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 947 | { |
| 948 | const char *id = qdict_get_str(qdict, "id"); |
| 949 | DeviceState *dev; |
| 950 | |
| 951 | dev = qdev_find_recursive(main_system_bus, id); |
| 952 | if (NULL == dev) { |
Markus Armbruster | 17a38ea | 2010-03-22 11:38:14 +0100 | [diff] [blame] | 953 | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
| 954 | return -1; |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 955 | } |
Markus Armbruster | 17a38ea | 2010-03-22 11:38:14 +0100 | [diff] [blame] | 956 | return qdev_unplug(dev); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 957 | } |
Gleb Natapov | 1ca4d09 | 2010-12-08 13:35:05 +0200 | [diff] [blame] | 958 | |
| 959 | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
| 960 | { |
| 961 | int l = 0; |
| 962 | |
| 963 | if (dev && dev->parent_bus) { |
| 964 | char *d; |
| 965 | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); |
| 966 | if (dev->parent_bus->info->get_fw_dev_path) { |
| 967 | d = dev->parent_bus->info->get_fw_dev_path(dev); |
| 968 | l += snprintf(p + l, size - l, "%s", d); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 969 | g_free(d); |
Gleb Natapov | 1ca4d09 | 2010-12-08 13:35:05 +0200 | [diff] [blame] | 970 | } else { |
| 971 | l += snprintf(p + l, size - l, "%s", dev->info->name); |
| 972 | } |
| 973 | } |
| 974 | l += snprintf(p + l , size - l, "/"); |
| 975 | |
| 976 | return l; |
| 977 | } |
| 978 | |
| 979 | char* qdev_get_fw_dev_path(DeviceState *dev) |
| 980 | { |
| 981 | char path[128]; |
| 982 | int l; |
| 983 | |
| 984 | l = qdev_get_fw_dev_path_helper(dev, path, 128); |
| 985 | |
| 986 | path[l-1] = '\0'; |
| 987 | |
| 988 | return strdup(path); |
| 989 | } |
Anthony Liguori | 85ed303 | 2011-12-12 14:29:25 -0600 | [diff] [blame] | 990 | |
| 991 | void qdev_ref(DeviceState *dev) |
| 992 | { |
| 993 | dev->ref++; |
| 994 | } |
| 995 | |
| 996 | void qdev_unref(DeviceState *dev) |
| 997 | { |
| 998 | g_assert(dev->ref > 0); |
| 999 | dev->ref--; |
| 1000 | } |
Anthony Liguori | 44677de | 2011-12-12 14:29:26 -0600 | [diff] [blame^] | 1001 | |
| 1002 | void qdev_property_add(DeviceState *dev, const char *name, const char *type, |
| 1003 | DevicePropertyAccessor *get, DevicePropertyAccessor *set, |
| 1004 | DevicePropertyRelease *release, |
| 1005 | void *opaque, Error **errp) |
| 1006 | { |
| 1007 | DeviceProperty *prop = g_malloc0(sizeof(*prop)); |
| 1008 | |
| 1009 | prop->name = g_strdup(name); |
| 1010 | prop->type = g_strdup(type); |
| 1011 | |
| 1012 | prop->get = get; |
| 1013 | prop->set = set; |
| 1014 | prop->release = release; |
| 1015 | prop->opaque = opaque; |
| 1016 | |
| 1017 | QTAILQ_INSERT_TAIL(&dev->properties, prop, node); |
| 1018 | } |
| 1019 | |
| 1020 | static DeviceProperty *qdev_property_find(DeviceState *dev, const char *name) |
| 1021 | { |
| 1022 | DeviceProperty *prop; |
| 1023 | |
| 1024 | QTAILQ_FOREACH(prop, &dev->properties, node) { |
| 1025 | if (strcmp(prop->name, name) == 0) { |
| 1026 | return prop; |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | return NULL; |
| 1031 | } |
| 1032 | |
| 1033 | void qdev_property_get(DeviceState *dev, Visitor *v, const char *name, |
| 1034 | Error **errp) |
| 1035 | { |
| 1036 | DeviceProperty *prop = qdev_property_find(dev, name); |
| 1037 | |
| 1038 | if (prop == NULL) { |
| 1039 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); |
| 1040 | return; |
| 1041 | } |
| 1042 | |
| 1043 | if (!prop->get) { |
| 1044 | error_set(errp, QERR_PERMISSION_DENIED); |
| 1045 | } else { |
| 1046 | prop->get(dev, v, prop->opaque, name, errp); |
| 1047 | } |
| 1048 | } |
| 1049 | |
| 1050 | void qdev_property_set(DeviceState *dev, Visitor *v, const char *name, |
| 1051 | Error **errp) |
| 1052 | { |
| 1053 | DeviceProperty *prop = qdev_property_find(dev, name); |
| 1054 | |
| 1055 | if (prop == NULL) { |
| 1056 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); |
| 1057 | return; |
| 1058 | } |
| 1059 | |
| 1060 | if (!prop->set) { |
| 1061 | error_set(errp, QERR_PERMISSION_DENIED); |
| 1062 | } else { |
| 1063 | prop->set(dev, prop->opaque, v, name, errp); |
| 1064 | } |
| 1065 | } |
| 1066 | |
| 1067 | const char *qdev_property_get_type(DeviceState *dev, const char *name, Error **errp) |
| 1068 | { |
| 1069 | DeviceProperty *prop = qdev_property_find(dev, name); |
| 1070 | |
| 1071 | if (prop == NULL) { |
| 1072 | error_set(errp, QERR_PROPERTY_NOT_FOUND, dev->id?:"", name); |
| 1073 | return NULL; |
| 1074 | } |
| 1075 | |
| 1076 | return prop->type; |
| 1077 | } |