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; |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 39 | |
Gerd Hoffmann | 0958b4c | 2009-10-26 15:56:45 +0100 | [diff] [blame] | 40 | DeviceInfo *device_info_list; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 41 | |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 42 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
| 43 | const BusInfo *info); |
| 44 | static BusState *qbus_find(const char *path); |
| 45 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 46 | /* Register a new device type. */ |
Gerd Hoffmann | 074f2ff | 2009-06-10 09:41:42 +0200 | [diff] [blame] | 47 | void qdev_register(DeviceInfo *info) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 48 | { |
Gerd Hoffmann | 074f2ff | 2009-06-10 09:41:42 +0200 | [diff] [blame] | 49 | assert(info->size >= sizeof(DeviceState)); |
Gerd Hoffmann | 042f84d | 2009-06-30 14:12:09 +0200 | [diff] [blame] | 50 | assert(!info->next); |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 51 | |
Gerd Hoffmann | 042f84d | 2009-06-30 14:12:09 +0200 | [diff] [blame] | 52 | info->next = device_info_list; |
| 53 | device_info_list = info; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 54 | } |
| 55 | |
Gerd Hoffmann | 81ebb98 | 2009-07-15 13:43:32 +0200 | [diff] [blame] | 56 | static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name) |
| 57 | { |
| 58 | DeviceInfo *info; |
| 59 | |
Gerd Hoffmann | 3320e56 | 2009-07-15 13:43:33 +0200 | [diff] [blame] | 60 | /* first check device names */ |
Gerd Hoffmann | 81ebb98 | 2009-07-15 13:43:32 +0200 | [diff] [blame] | 61 | for (info = device_info_list; info != NULL; info = info->next) { |
| 62 | if (bus_info && info->bus_info != bus_info) |
| 63 | continue; |
| 64 | if (strcmp(info->name, name) != 0) |
| 65 | continue; |
| 66 | return info; |
| 67 | } |
Gerd Hoffmann | 3320e56 | 2009-07-15 13:43:33 +0200 | [diff] [blame] | 68 | |
| 69 | /* failing that check the aliases */ |
| 70 | for (info = device_info_list; info != NULL; info = info->next) { |
| 71 | if (bus_info && info->bus_info != bus_info) |
| 72 | continue; |
| 73 | if (!info->alias) |
| 74 | continue; |
| 75 | if (strcmp(info->alias, name) != 0) |
| 76 | continue; |
| 77 | return info; |
| 78 | } |
Gerd Hoffmann | 81ebb98 | 2009-07-15 13:43:32 +0200 | [diff] [blame] | 79 | return NULL; |
| 80 | } |
| 81 | |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 82 | static DeviceState *qdev_create_from_info(BusState *bus, DeviceInfo *info) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 83 | { |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 84 | DeviceState *dev; |
| 85 | |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 86 | assert(bus->info == info->bus_info); |
Gerd Hoffmann | 042f84d | 2009-06-30 14:12:09 +0200 | [diff] [blame] | 87 | dev = qemu_mallocz(info->size); |
| 88 | dev->info = info; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 89 | dev->parent_bus = bus; |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 90 | qdev_prop_set_defaults(dev, dev->info->props); |
| 91 | qdev_prop_set_defaults(dev, dev->parent_bus->info->props); |
Gerd Hoffmann | 458fb67 | 2009-12-08 13:11:33 +0100 | [diff] [blame] | 92 | qdev_prop_set_globals(dev); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 93 | QLIST_INSERT_HEAD(&bus->children, dev, sibling); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 94 | if (qdev_hotplug) { |
| 95 | assert(bus->allow_hotplug); |
| 96 | dev->hotplugged = 1; |
Alex Williamson | 0ac8ef7 | 2011-01-04 12:37:50 -0700 | [diff] [blame] | 97 | qdev_hot_added = true; |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 98 | } |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 99 | dev->instance_id_alias = -1; |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 100 | dev->state = DEV_STATE_CREATED; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 101 | return dev; |
| 102 | } |
| 103 | |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 104 | /* Create a new device. This only initializes the device state structure |
| 105 | and allows properties to be set. qdev_init should be called to |
| 106 | initialize the actual device emulation. */ |
| 107 | DeviceState *qdev_create(BusState *bus, const char *name) |
| 108 | { |
Blue Swirl | 0bcdeda | 2011-02-05 14:34:25 +0000 | [diff] [blame] | 109 | DeviceState *dev; |
| 110 | |
| 111 | dev = qdev_try_create(bus, name); |
| 112 | if (!dev) { |
| 113 | hw_error("Unknown device '%s' for bus '%s'\n", name, bus->info->name); |
| 114 | } |
| 115 | |
| 116 | return dev; |
| 117 | } |
| 118 | |
| 119 | DeviceState *qdev_try_create(BusState *bus, const char *name) |
| 120 | { |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 121 | DeviceInfo *info; |
| 122 | |
| 123 | if (!bus) { |
Stefan Weil | 6869489 | 2010-12-16 19:33:22 +0100 | [diff] [blame] | 124 | bus = sysbus_get_default(); |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 125 | } |
| 126 | |
| 127 | info = qdev_find_info(bus->info, name); |
| 128 | if (!info) { |
Blue Swirl | 0bcdeda | 2011-02-05 14:34:25 +0000 | [diff] [blame] | 129 | return NULL; |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | return qdev_create_from_info(bus, info); |
| 133 | } |
| 134 | |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 135 | static void qdev_print_devinfo(DeviceInfo *info) |
Gerd Hoffmann | 1b524b0 | 2009-07-29 13:12:23 +0200 | [diff] [blame] | 136 | { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 137 | error_printf("name \"%s\", bus %s", |
| 138 | info->name, info->bus_info->name); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 139 | if (info->alias) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 140 | error_printf(", alias \"%s\"", info->alias); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 141 | } |
| 142 | if (info->desc) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 143 | error_printf(", desc \"%s\"", info->desc); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 144 | } |
| 145 | if (info->no_user) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 146 | error_printf(", no-user"); |
Gerd Hoffmann | 22f2e34 | 2009-08-03 11:26:48 +0200 | [diff] [blame] | 147 | } |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 148 | error_printf("\n"); |
Gerd Hoffmann | 1b524b0 | 2009-07-29 13:12:23 +0200 | [diff] [blame] | 149 | } |
| 150 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 151 | static int set_property(const char *name, const char *value, void *opaque) |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 152 | { |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 153 | DeviceState *dev = opaque; |
| 154 | |
| 155 | if (strcmp(name, "driver") == 0) |
| 156 | return 0; |
| 157 | if (strcmp(name, "bus") == 0) |
| 158 | return 0; |
| 159 | |
Mark McLoughlin | 3df04ac | 2009-09-23 11:24:05 +0100 | [diff] [blame] | 160 | if (qdev_prop_parse(dev, name, value) == -1) { |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 161 | return -1; |
| 162 | } |
| 163 | return 0; |
| 164 | } |
| 165 | |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 166 | int qdev_device_help(QemuOpts *opts) |
| 167 | { |
| 168 | const char *driver; |
| 169 | DeviceInfo *info; |
Markus Armbruster | 08350cf | 2010-01-29 19:49:00 +0100 | [diff] [blame] | 170 | Property *prop; |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 171 | |
| 172 | driver = qemu_opt_get(opts, "driver"); |
| 173 | if (driver && !strcmp(driver, "?")) { |
| 174 | for (info = device_info_list; info != NULL; info = info->next) { |
Markus Armbruster | c64eafa | 2010-02-19 13:31:49 +0100 | [diff] [blame] | 175 | if (info->no_user) { |
| 176 | continue; /* not available, don't show */ |
| 177 | } |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 178 | qdev_print_devinfo(info); |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 179 | } |
| 180 | return 1; |
| 181 | } |
| 182 | |
Markus Armbruster | 08350cf | 2010-01-29 19:49:00 +0100 | [diff] [blame] | 183 | if (!qemu_opt_get(opts, "?")) { |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | info = qdev_find_info(NULL, driver); |
| 188 | if (!info) { |
| 189 | return 0; |
| 190 | } |
| 191 | |
| 192 | for (prop = info->props; prop && prop->name; prop++) { |
Markus Armbruster | 036f716 | 2010-02-19 11:47:06 +0100 | [diff] [blame] | 193 | /* |
| 194 | * TODO Properties without a parser are just for dirty hacks. |
| 195 | * qdev_prop_ptr is the only such PropertyInfo. It's marked |
| 196 | * for removal. This conditional should be removed along with |
| 197 | * it. |
| 198 | */ |
| 199 | if (!prop->info->parse) { |
| 200 | continue; /* no way to set it, don't show */ |
| 201 | } |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 202 | 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] | 203 | } |
| 204 | return 1; |
Markus Armbruster | ff952ba | 2010-01-29 19:48:57 +0100 | [diff] [blame] | 205 | } |
| 206 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 207 | DeviceState *qdev_device_add(QemuOpts *opts) |
| 208 | { |
| 209 | const char *driver, *path, *id; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 210 | DeviceInfo *info; |
| 211 | DeviceState *qdev; |
| 212 | BusState *bus; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 213 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 214 | driver = qemu_opt_get(opts, "driver"); |
| 215 | if (!driver) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 216 | qerror_report(QERR_MISSING_PARAMETER, "driver"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 217 | return NULL; |
| 218 | } |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 219 | |
| 220 | /* find driver */ |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 221 | info = qdev_find_info(NULL, driver); |
Markus Armbruster | c64eafa | 2010-02-19 13:31:49 +0100 | [diff] [blame] | 222 | if (!info || info->no_user) { |
Markus Armbruster | e17ba87 | 2010-03-25 17:22:36 +0100 | [diff] [blame] | 223 | qerror_report(QERR_INVALID_PARAMETER_VALUE, "driver", "a driver name"); |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 224 | error_printf_unless_qmp("Try with argument '?' for a list.\n"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 225 | return NULL; |
| 226 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 227 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 228 | /* find bus */ |
| 229 | path = qemu_opt_get(opts, "bus"); |
| 230 | if (path != NULL) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 231 | bus = qbus_find(path); |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 232 | if (!bus) { |
| 233 | return NULL; |
| 234 | } |
| 235 | if (bus->info != info->bus_info) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 236 | qerror_report(QERR_BAD_BUS_FOR_DEVICE, |
| 237 | driver, bus->info->name); |
Markus Armbruster | 327867b | 2010-02-19 19:08:45 +0100 | [diff] [blame] | 238 | return NULL; |
| 239 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 240 | } else { |
| 241 | bus = qbus_find_recursive(main_system_bus, NULL, info->bus_info); |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 242 | if (!bus) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 243 | qerror_report(QERR_NO_BUS_FOR_DEVICE, |
| 244 | info->name, info->bus_info->name); |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 245 | return NULL; |
| 246 | } |
Gerd Hoffmann | 7557008 | 2009-08-31 14:23:58 +0200 | [diff] [blame] | 247 | } |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 248 | if (qdev_hotplug && !bus->allow_hotplug) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 249 | qerror_report(QERR_BUS_NO_HOTPLUG, bus->name); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 250 | return NULL; |
| 251 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 252 | |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 253 | /* create device, set properties */ |
Markus Armbruster | 0c17542 | 2010-02-19 19:12:18 +0100 | [diff] [blame] | 254 | qdev = qdev_create_from_info(bus, info); |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 255 | id = qemu_opts_id(opts); |
| 256 | if (id) { |
| 257 | qdev->id = id; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 258 | } |
Gerd Hoffmann | f31d07d | 2009-07-31 12:25:37 +0200 | [diff] [blame] | 259 | if (qemu_opt_foreach(opts, set_property, qdev, 1) != 0) { |
| 260 | qdev_free(qdev); |
| 261 | return NULL; |
| 262 | } |
Markus Armbruster | 5c17ca2 | 2009-10-07 01:16:01 +0200 | [diff] [blame] | 263 | if (qdev_init(qdev) < 0) { |
Markus Armbruster | 0204276 | 2010-02-19 14:17:34 +0100 | [diff] [blame] | 264 | qerror_report(QERR_DEVICE_INIT_FAILED, driver); |
Gerd Hoffmann | 81a322d | 2009-08-14 10:36:05 +0200 | [diff] [blame] | 265 | return NULL; |
| 266 | } |
Gerd Hoffmann | ef80b46 | 2009-09-25 21:42:49 +0200 | [diff] [blame] | 267 | qdev->opts = opts; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 268 | return qdev; |
| 269 | } |
| 270 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 271 | /* Initialize a device. Device properties should be set before calling |
| 272 | this function. IRQs and MMIO regions should be connected/mapped after |
Markus Armbruster | 18cfeb5 | 2009-10-07 01:15:56 +0200 | [diff] [blame] | 273 | calling this function. |
| 274 | On failure, destroy the device and return negative value. |
| 275 | Return 0 on success. */ |
Gerd Hoffmann | 81a322d | 2009-08-14 10:36:05 +0200 | [diff] [blame] | 276 | int qdev_init(DeviceState *dev) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 277 | { |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 278 | int rc; |
| 279 | |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 280 | assert(dev->state == DEV_STATE_CREATED); |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 281 | rc = dev->info->init(dev, dev->info); |
Markus Armbruster | 18cfeb5 | 2009-10-07 01:15:56 +0200 | [diff] [blame] | 282 | if (rc < 0) { |
| 283 | qdev_free(dev); |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 284 | return rc; |
Markus Armbruster | 18cfeb5 | 2009-10-07 01:15:56 +0200 | [diff] [blame] | 285 | } |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 286 | if (dev->info->vmsd) { |
Alex Williamson | 0be71e3 | 2010-06-25 11:09:07 -0600 | [diff] [blame] | 287 | vmstate_register_with_alias_id(dev, -1, dev->info->vmsd, dev, |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 288 | dev->instance_id_alias, |
| 289 | dev->alias_required_for_version); |
| 290 | } |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 291 | dev->state = DEV_STATE_INITIALIZED; |
Gerd Hoffmann | 959f733 | 2009-09-01 09:56:12 +0200 | [diff] [blame] | 292 | return 0; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 293 | } |
| 294 | |
Jan Kiszka | 4d2ffa0 | 2010-05-15 13:32:40 +0200 | [diff] [blame] | 295 | void qdev_set_legacy_instance_id(DeviceState *dev, int alias_id, |
| 296 | int required_for_version) |
| 297 | { |
| 298 | assert(dev->state == DEV_STATE_CREATED); |
| 299 | dev->instance_id_alias = alias_id; |
| 300 | dev->alias_required_for_version = required_for_version; |
| 301 | } |
| 302 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 303 | int qdev_unplug(DeviceState *dev) |
| 304 | { |
| 305 | if (!dev->parent_bus->allow_hotplug) { |
Markus Armbruster | cc601cb | 2010-03-22 11:38:13 +0100 | [diff] [blame] | 306 | qerror_report(QERR_BUS_NO_HOTPLUG, dev->parent_bus->name); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 307 | return -1; |
| 308 | } |
Amit Shah | 593831d | 2009-11-02 14:56:41 +0530 | [diff] [blame] | 309 | assert(dev->info->unplug != NULL); |
| 310 | |
Alex Williamson | 0ac8ef7 | 2011-01-04 12:37:50 -0700 | [diff] [blame] | 311 | qdev_hot_removed = true; |
| 312 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 313 | return dev->info->unplug(dev); |
| 314 | } |
| 315 | |
Anthony Liguori | ec990eb | 2010-11-19 18:55:59 +0900 | [diff] [blame] | 316 | static int qdev_reset_one(DeviceState *dev, void *opaque) |
| 317 | { |
| 318 | if (dev->info->reset) { |
| 319 | dev->info->reset(dev); |
| 320 | } |
| 321 | |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | BusState *sysbus_get_default(void) |
| 326 | { |
Stefan Weil | 6869489 | 2010-12-16 19:33:22 +0100 | [diff] [blame] | 327 | if (!main_system_bus) { |
| 328 | main_system_bus = qbus_create(&system_bus_info, NULL, |
| 329 | "main-system-bus"); |
| 330 | } |
Anthony Liguori | ec990eb | 2010-11-19 18:55:59 +0900 | [diff] [blame] | 331 | return main_system_bus; |
| 332 | } |
| 333 | |
Isaku Yamahata | b4694b7 | 2010-11-19 18:56:00 +0900 | [diff] [blame] | 334 | static int qbus_reset_one(BusState *bus, void *opaque) |
| 335 | { |
| 336 | if (bus->info->reset) { |
| 337 | return bus->info->reset(bus); |
| 338 | } |
| 339 | return 0; |
| 340 | } |
| 341 | |
Isaku Yamahata | 5af0a04 | 2010-11-19 18:56:01 +0900 | [diff] [blame] | 342 | void qdev_reset_all(DeviceState *dev) |
| 343 | { |
| 344 | qdev_walk_children(dev, qdev_reset_one, qbus_reset_one, NULL); |
| 345 | } |
| 346 | |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 347 | void qbus_reset_all_fn(void *opaque) |
| 348 | { |
| 349 | BusState *bus = opaque; |
Michael S. Tsirkin | f530cce | 2010-12-20 15:17:10 +0200 | [diff] [blame] | 350 | qbus_walk_children(bus, qdev_reset_one, qbus_reset_one, NULL); |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 351 | } |
| 352 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 353 | /* can be used as ->unplug() callback for the simple cases */ |
| 354 | int qdev_simple_unplug_cb(DeviceState *dev) |
| 355 | { |
| 356 | /* just zap it */ |
| 357 | qdev_free(dev); |
| 358 | return 0; |
| 359 | } |
| 360 | |
Michael Tokarev | 3b29a10 | 2011-04-06 17:51:59 +0400 | [diff] [blame] | 361 | |
| 362 | /* Like qdev_init(), but terminate program via error_report() instead of |
Markus Armbruster | e23a1b3 | 2009-10-07 01:15:58 +0200 | [diff] [blame] | 363 | returning an error value. This is okay during machine creation. |
| 364 | Don't use for hotplug, because there callers need to recover from |
| 365 | failure. Exception: if you know the device's init() callback can't |
| 366 | fail, then qdev_init_nofail() can't fail either, and is therefore |
| 367 | usable even then. But relying on the device implementation that |
| 368 | way is somewhat unclean, and best avoided. */ |
| 369 | void qdev_init_nofail(DeviceState *dev) |
| 370 | { |
| 371 | DeviceInfo *info = dev->info; |
| 372 | |
Markus Armbruster | bd6c9a6 | 2010-05-27 21:23:08 +0200 | [diff] [blame] | 373 | if (qdev_init(dev) < 0) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame^] | 374 | error_report("Initialization of device %s failed", info->name); |
Markus Armbruster | bd6c9a6 | 2010-05-27 21:23:08 +0200 | [diff] [blame] | 375 | exit(1); |
| 376 | } |
Markus Armbruster | e23a1b3 | 2009-10-07 01:15:58 +0200 | [diff] [blame] | 377 | } |
| 378 | |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 379 | /* Unlink device from bus and free the structure. */ |
| 380 | void qdev_free(DeviceState *dev) |
| 381 | { |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 382 | BusState *bus; |
Markus Armbruster | d21357d | 2010-06-01 20:32:31 +0200 | [diff] [blame] | 383 | Property *prop; |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 384 | |
| 385 | if (dev->state == DEV_STATE_INITIALIZED) { |
| 386 | while (dev->num_child_bus) { |
| 387 | bus = QLIST_FIRST(&dev->child_bus); |
| 388 | qbus_free(bus); |
| 389 | } |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 390 | if (dev->info->vmsd) |
Alex Williamson | 0be71e3 | 2010-06-25 11:09:07 -0600 | [diff] [blame] | 391 | vmstate_unregister(dev, dev->info->vmsd, dev); |
Gerd Hoffmann | d29275f | 2009-09-25 21:42:35 +0200 | [diff] [blame] | 392 | if (dev->info->exit) |
| 393 | dev->info->exit(dev); |
Gerd Hoffmann | ef80b46 | 2009-09-25 21:42:49 +0200 | [diff] [blame] | 394 | if (dev->opts) |
| 395 | qemu_opts_del(dev->opts); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 396 | } |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 397 | QLIST_REMOVE(dev, sibling); |
Markus Armbruster | d21357d | 2010-06-01 20:32:31 +0200 | [diff] [blame] | 398 | for (prop = dev->info->props; prop && prop->name; prop++) { |
| 399 | if (prop->info->free) { |
| 400 | prop->info->free(dev, prop); |
| 401 | } |
| 402 | } |
Gerd Hoffmann | ccb63de | 2009-07-15 13:43:34 +0200 | [diff] [blame] | 403 | qemu_free(dev); |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 404 | } |
| 405 | |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 406 | void qdev_machine_creation_done(void) |
| 407 | { |
| 408 | /* |
| 409 | * ok, initial machine setup is done, starting from now we can |
| 410 | * only create hotpluggable devices |
| 411 | */ |
| 412 | qdev_hotplug = 1; |
| 413 | } |
| 414 | |
Alex Williamson | 0ac8ef7 | 2011-01-04 12:37:50 -0700 | [diff] [blame] | 415 | bool qdev_machine_modified(void) |
| 416 | { |
| 417 | return qdev_hot_added || qdev_hot_removed; |
| 418 | } |
| 419 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 420 | /* Get a character (serial) device interface. */ |
| 421 | CharDriverState *qdev_init_chardev(DeviceState *dev) |
| 422 | { |
| 423 | static int next_serial; |
Amit Shah | 98b1925 | 2010-01-20 00:36:52 +0530 | [diff] [blame] | 424 | |
| 425 | /* FIXME: This function needs to go away: use chardev properties! */ |
| 426 | return serial_hds[next_serial++]; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 427 | } |
| 428 | |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 429 | BusState *qdev_get_parent_bus(DeviceState *dev) |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 430 | { |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 431 | return dev->parent_bus; |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 432 | } |
| 433 | |
Paul Brook | aae9460 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 434 | void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n) |
| 435 | { |
| 436 | assert(dev->num_gpio_in == 0); |
| 437 | dev->num_gpio_in = n; |
| 438 | dev->gpio_in = qemu_allocate_irqs(handler, dev, n); |
| 439 | } |
| 440 | |
| 441 | void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n) |
| 442 | { |
| 443 | assert(dev->num_gpio_out == 0); |
| 444 | dev->num_gpio_out = n; |
| 445 | dev->gpio_out = pins; |
| 446 | } |
| 447 | |
| 448 | qemu_irq qdev_get_gpio_in(DeviceState *dev, int n) |
| 449 | { |
| 450 | assert(n >= 0 && n < dev->num_gpio_in); |
| 451 | return dev->gpio_in[n]; |
| 452 | } |
| 453 | |
| 454 | void qdev_connect_gpio_out(DeviceState * dev, int n, qemu_irq pin) |
| 455 | { |
| 456 | assert(n >= 0 && n < dev->num_gpio_out); |
| 457 | dev->gpio_out[n] = pin; |
| 458 | } |
| 459 | |
Gerd Hoffmann | ed16ab5 | 2009-10-21 15:25:26 +0200 | [diff] [blame] | 460 | void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd) |
| 461 | { |
| 462 | qdev_prop_set_macaddr(dev, "mac", nd->macaddr); |
| 463 | if (nd->vlan) |
| 464 | qdev_prop_set_vlan(dev, "vlan", nd->vlan); |
| 465 | if (nd->netdev) |
| 466 | qdev_prop_set_netdev(dev, "netdev", nd->netdev); |
Amit Shah | 75422b0 | 2010-02-25 17:24:43 +0530 | [diff] [blame] | 467 | if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED && |
Gerd Hoffmann | 97b1562 | 2009-10-21 15:25:35 +0200 | [diff] [blame] | 468 | qdev_prop_exists(dev, "vectors")) { |
| 469 | qdev_prop_set_uint32(dev, "vectors", nd->nvectors); |
| 470 | } |
Peter Maydell | 48e2faf | 2011-05-20 16:50:01 +0100 | [diff] [blame] | 471 | nd->instantiated = 1; |
Gerd Hoffmann | ed16ab5 | 2009-10-21 15:25:26 +0200 | [diff] [blame] | 472 | } |
| 473 | |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 474 | BusState *qdev_get_child_bus(DeviceState *dev, const char *name) |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 475 | { |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 476 | BusState *bus; |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 477 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 478 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 479 | if (strcmp(name, bus->name) == 0) { |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 480 | return bus; |
Paul Brook | 4d6ae67 | 2009-05-14 22:35:06 +0100 | [diff] [blame] | 481 | } |
| 482 | } |
| 483 | return NULL; |
| 484 | } |
| 485 | |
Anthony Liguori | 81699d8 | 2010-11-19 18:55:58 +0900 | [diff] [blame] | 486 | int qbus_walk_children(BusState *bus, qdev_walkerfn *devfn, |
| 487 | qbus_walkerfn *busfn, void *opaque) |
| 488 | { |
| 489 | DeviceState *dev; |
| 490 | int err; |
| 491 | |
| 492 | if (busfn) { |
| 493 | err = busfn(bus, opaque); |
| 494 | if (err) { |
| 495 | return err; |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | QLIST_FOREACH(dev, &bus->children, sibling) { |
| 500 | err = qdev_walk_children(dev, devfn, busfn, opaque); |
| 501 | if (err < 0) { |
| 502 | return err; |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | return 0; |
| 507 | } |
| 508 | |
| 509 | int qdev_walk_children(DeviceState *dev, qdev_walkerfn *devfn, |
| 510 | qbus_walkerfn *busfn, void *opaque) |
| 511 | { |
| 512 | BusState *bus; |
| 513 | int err; |
| 514 | |
| 515 | if (devfn) { |
| 516 | err = devfn(dev, opaque); |
| 517 | if (err) { |
| 518 | return err; |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | QLIST_FOREACH(bus, &dev->child_bus, sibling) { |
| 523 | err = qbus_walk_children(bus, devfn, busfn, opaque); |
| 524 | if (err < 0) { |
| 525 | return err; |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | return 0; |
| 530 | } |
| 531 | |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 532 | static BusState *qbus_find_recursive(BusState *bus, const char *name, |
| 533 | const BusInfo *info) |
| 534 | { |
| 535 | DeviceState *dev; |
| 536 | BusState *child, *ret; |
| 537 | int match = 1; |
| 538 | |
| 539 | if (name && (strcmp(bus->name, name) != 0)) { |
| 540 | match = 0; |
| 541 | } |
| 542 | if (info && (bus->info != info)) { |
| 543 | match = 0; |
| 544 | } |
| 545 | if (match) { |
| 546 | return bus; |
| 547 | } |
| 548 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 549 | QLIST_FOREACH(dev, &bus->children, sibling) { |
| 550 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 551 | ret = qbus_find_recursive(child, name, info); |
| 552 | if (ret) { |
| 553 | return ret; |
| 554 | } |
| 555 | } |
| 556 | } |
| 557 | return NULL; |
| 558 | } |
| 559 | |
Isaku Yamahata | a2ee6b4 | 2010-12-24 12:14:12 +0900 | [diff] [blame] | 560 | DeviceState *qdev_find_recursive(BusState *bus, const char *id) |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 561 | { |
| 562 | DeviceState *dev, *ret; |
| 563 | BusState *child; |
| 564 | |
| 565 | QLIST_FOREACH(dev, &bus->children, sibling) { |
| 566 | if (dev->id && strcmp(dev->id, id) == 0) |
| 567 | return dev; |
| 568 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
| 569 | ret = qdev_find_recursive(child, id); |
| 570 | if (ret) { |
| 571 | return ret; |
| 572 | } |
| 573 | } |
| 574 | } |
| 575 | return NULL; |
| 576 | } |
| 577 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 578 | static void qbus_list_bus(DeviceState *dev) |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 579 | { |
| 580 | BusState *child; |
| 581 | const char *sep = " "; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 582 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 583 | error_printf("child busses at \"%s\":", |
| 584 | dev->id ? dev->id : dev->info->name); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 585 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 586 | error_printf("%s\"%s\"", sep, child->name); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 587 | sep = ", "; |
| 588 | } |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 589 | error_printf("\n"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 590 | } |
| 591 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 592 | static void qbus_list_dev(BusState *bus) |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 593 | { |
| 594 | DeviceState *dev; |
| 595 | const char *sep = " "; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 596 | |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 597 | error_printf("devices at \"%s\":", bus->name); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 598 | QLIST_FOREACH(dev, &bus->children, sibling) { |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 599 | error_printf("%s\"%s\"", sep, dev->info->name); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 600 | if (dev->id) |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 601 | error_printf("/\"%s\"", dev->id); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 602 | sep = ", "; |
| 603 | } |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 604 | error_printf("\n"); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 605 | } |
| 606 | |
| 607 | static BusState *qbus_find_bus(DeviceState *dev, char *elem) |
| 608 | { |
| 609 | BusState *child; |
| 610 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 611 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 612 | if (strcmp(child->name, elem) == 0) { |
| 613 | return child; |
| 614 | } |
| 615 | } |
| 616 | return NULL; |
| 617 | } |
| 618 | |
| 619 | static DeviceState *qbus_find_dev(BusState *bus, char *elem) |
| 620 | { |
| 621 | DeviceState *dev; |
| 622 | |
| 623 | /* |
| 624 | * try to match in order: |
| 625 | * (1) instance id, if present |
| 626 | * (2) driver name |
| 627 | * (3) driver alias, if present |
| 628 | */ |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 629 | QLIST_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 630 | if (dev->id && strcmp(dev->id, elem) == 0) { |
| 631 | return dev; |
| 632 | } |
| 633 | } |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 634 | QLIST_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 635 | if (strcmp(dev->info->name, elem) == 0) { |
| 636 | return dev; |
| 637 | } |
| 638 | } |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 639 | QLIST_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 640 | if (dev->info->alias && strcmp(dev->info->alias, elem) == 0) { |
| 641 | return dev; |
| 642 | } |
| 643 | } |
| 644 | return NULL; |
| 645 | } |
| 646 | |
| 647 | static BusState *qbus_find(const char *path) |
| 648 | { |
| 649 | DeviceState *dev; |
| 650 | BusState *bus; |
Markus Armbruster | 53db16b | 2010-02-18 18:55:59 +0100 | [diff] [blame] | 651 | char elem[128]; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 652 | int pos, len; |
| 653 | |
| 654 | /* find start element */ |
| 655 | if (path[0] == '/') { |
| 656 | bus = main_system_bus; |
| 657 | pos = 0; |
| 658 | } else { |
| 659 | if (sscanf(path, "%127[^/]%n", elem, &len) != 1) { |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 660 | assert(!path[0]); |
| 661 | elem[0] = len = 0; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 662 | } |
| 663 | bus = qbus_find_recursive(main_system_bus, elem, NULL); |
| 664 | if (!bus) { |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 665 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 666 | return NULL; |
| 667 | } |
| 668 | pos = len; |
| 669 | } |
| 670 | |
| 671 | for (;;) { |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 672 | assert(path[pos] == '/' || !path[pos]); |
| 673 | while (path[pos] == '/') { |
| 674 | pos++; |
| 675 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 676 | if (path[pos] == '\0') { |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 677 | return bus; |
| 678 | } |
| 679 | |
| 680 | /* find device */ |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 681 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
| 682 | assert(0); |
| 683 | elem[0] = len = 0; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 684 | } |
| 685 | pos += len; |
| 686 | dev = qbus_find_dev(bus, elem); |
| 687 | if (!dev) { |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 688 | qerror_report(QERR_DEVICE_NOT_FOUND, elem); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 689 | if (!monitor_cur_is_qmp()) { |
| 690 | qbus_list_dev(bus); |
| 691 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 692 | return NULL; |
| 693 | } |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 694 | |
| 695 | assert(path[pos] == '/' || !path[pos]); |
| 696 | while (path[pos] == '/') { |
| 697 | pos++; |
| 698 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 699 | if (path[pos] == '\0') { |
| 700 | /* last specified element is a device. If it has exactly |
| 701 | * one child bus accept it nevertheless */ |
| 702 | switch (dev->num_child_bus) { |
| 703 | case 0: |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 704 | qerror_report(QERR_DEVICE_NO_BUS, elem); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 705 | return NULL; |
| 706 | case 1: |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 707 | return QLIST_FIRST(&dev->child_bus); |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 708 | default: |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 709 | qerror_report(QERR_DEVICE_MULTIPLE_BUSSES, elem); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 710 | if (!monitor_cur_is_qmp()) { |
| 711 | qbus_list_bus(dev); |
| 712 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 713 | return NULL; |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | /* find bus */ |
Markus Armbruster | fc98eb4 | 2010-02-19 16:09:25 +0100 | [diff] [blame] | 718 | if (sscanf(path+pos, "%127[^/]%n", elem, &len) != 1) { |
| 719 | assert(0); |
| 720 | elem[0] = len = 0; |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 721 | } |
| 722 | pos += len; |
| 723 | bus = qbus_find_bus(dev, elem); |
| 724 | if (!bus) { |
Markus Armbruster | ac8dae6 | 2010-02-19 18:09:33 +0100 | [diff] [blame] | 725 | qerror_report(QERR_BUS_NOT_FOUND, elem); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 726 | if (!monitor_cur_is_qmp()) { |
| 727 | qbus_list_bus(dev); |
| 728 | } |
Gerd Hoffmann | 8ffb1bc | 2009-07-15 13:59:25 +0200 | [diff] [blame] | 729 | return NULL; |
| 730 | } |
| 731 | } |
| 732 | } |
| 733 | |
Gerd Hoffmann | cd739fb | 2009-09-16 22:25:27 +0200 | [diff] [blame] | 734 | void qbus_create_inplace(BusState *bus, BusInfo *info, |
| 735 | DeviceState *parent, const char *name) |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 736 | { |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 737 | char *buf; |
| 738 | int i,len; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 739 | |
Gerd Hoffmann | 10c4c98 | 2009-06-30 14:12:08 +0200 | [diff] [blame] | 740 | bus->info = info; |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 741 | bus->parent = parent; |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 742 | |
| 743 | if (name) { |
| 744 | /* use supplied name */ |
| 745 | bus->name = qemu_strdup(name); |
| 746 | } else if (parent && parent->id) { |
| 747 | /* parent device has id -> use it for bus name */ |
| 748 | len = strlen(parent->id) + 16; |
| 749 | buf = qemu_malloc(len); |
| 750 | snprintf(buf, len, "%s.%d", parent->id, parent->num_child_bus); |
| 751 | bus->name = buf; |
| 752 | } else { |
| 753 | /* no id -> use lowercase bus type for bus name */ |
| 754 | len = strlen(info->name) + 16; |
| 755 | buf = qemu_malloc(len); |
| 756 | len = snprintf(buf, len, "%s.%d", info->name, |
| 757 | parent ? parent->num_child_bus : 0); |
| 758 | for (i = 0; i < len; i++) |
Christoph Egger | bb87ece | 2009-07-30 15:28:45 +0200 | [diff] [blame] | 759 | buf[i] = qemu_tolower(buf[i]); |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 760 | bus->name = buf; |
| 761 | } |
| 762 | |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 763 | QLIST_INIT(&bus->children); |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 764 | if (parent) { |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 765 | QLIST_INSERT_HEAD(&parent->child_bus, bus, sibling); |
Gerd Hoffmann | d271de9 | 2009-07-15 13:59:24 +0200 | [diff] [blame] | 766 | parent->num_child_bus++; |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 767 | } else if (bus != main_system_bus) { |
| 768 | /* TODO: once all bus devices are qdevified, |
| 769 | only reset handler for main_system_bus should be registered here. */ |
| 770 | qemu_register_reset(qbus_reset_all_fn, bus); |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 771 | } |
Gerd Hoffmann | cd739fb | 2009-09-16 22:25:27 +0200 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | BusState *qbus_create(BusInfo *info, DeviceState *parent, const char *name) |
| 775 | { |
| 776 | BusState *bus; |
| 777 | |
| 778 | bus = qemu_mallocz(info->size); |
| 779 | bus->qdev_allocated = 1; |
| 780 | qbus_create_inplace(bus, info, parent, name); |
Paul Brook | 02e2da4 | 2009-05-23 00:05:19 +0100 | [diff] [blame] | 781 | return bus; |
| 782 | } |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 783 | |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 784 | void qbus_free(BusState *bus) |
| 785 | { |
| 786 | DeviceState *dev; |
| 787 | |
| 788 | while ((dev = QLIST_FIRST(&bus->children)) != NULL) { |
| 789 | qdev_free(dev); |
| 790 | } |
| 791 | if (bus->parent) { |
| 792 | QLIST_REMOVE(bus, sibling); |
| 793 | bus->parent->num_child_bus--; |
Isaku Yamahata | 80376c3 | 2010-12-20 14:33:35 +0900 | [diff] [blame] | 794 | } else { |
| 795 | assert(bus != main_system_bus); /* main_system_bus is never freed */ |
| 796 | qemu_unregister_reset(qbus_reset_all_fn, bus); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 797 | } |
Isaku Yamahata | e163ae7 | 2010-05-27 14:35:58 +0900 | [diff] [blame] | 798 | qemu_free((void*)bus->name); |
Gerd Hoffmann | 131ec1b | 2009-09-25 21:42:34 +0200 | [diff] [blame] | 799 | if (bus->qdev_allocated) { |
| 800 | qemu_free(bus); |
| 801 | } |
| 802 | } |
| 803 | |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 804 | #define qdev_printf(fmt, ...) monitor_printf(mon, "%*s" fmt, indent, "", ## __VA_ARGS__) |
| 805 | static void qbus_print(Monitor *mon, BusState *bus, int indent); |
| 806 | |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 807 | static void qdev_print_props(Monitor *mon, DeviceState *dev, Property *props, |
| 808 | const char *prefix, int indent) |
| 809 | { |
| 810 | char buf[64]; |
| 811 | |
| 812 | if (!props) |
| 813 | return; |
| 814 | while (props->name) { |
Markus Armbruster | 036f716 | 2010-02-19 11:47:06 +0100 | [diff] [blame] | 815 | /* |
| 816 | * TODO Properties without a print method are just for dirty |
| 817 | * hacks. qdev_prop_ptr is the only such PropertyInfo. It's |
| 818 | * marked for removal. The test props->info->print should be |
| 819 | * removed along with it. |
| 820 | */ |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 821 | if (props->info->print) { |
| 822 | props->info->print(dev, props, buf, sizeof(buf)); |
| 823 | qdev_printf("%s-prop: %s = %s\n", prefix, props->name, buf); |
| 824 | } |
| 825 | props++; |
| 826 | } |
| 827 | } |
| 828 | |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 829 | static void qdev_print(Monitor *mon, DeviceState *dev, int indent) |
| 830 | { |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 831 | BusState *child; |
Gerd Hoffmann | ccb63de | 2009-07-15 13:43:34 +0200 | [diff] [blame] | 832 | qdev_printf("dev: %s, id \"%s\"\n", dev->info->name, |
| 833 | dev->id ? dev->id : ""); |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 834 | indent += 2; |
| 835 | if (dev->num_gpio_in) { |
| 836 | qdev_printf("gpio-in %d\n", dev->num_gpio_in); |
| 837 | } |
| 838 | if (dev->num_gpio_out) { |
| 839 | qdev_printf("gpio-out %d\n", dev->num_gpio_out); |
| 840 | } |
Gerd Hoffmann | ee6847d | 2009-07-15 13:43:31 +0200 | [diff] [blame] | 841 | qdev_print_props(mon, dev, dev->info->props, "dev", indent); |
| 842 | qdev_print_props(mon, dev, dev->parent_bus->info->props, "bus", indent); |
Gerd Hoffmann | 10c4c98 | 2009-06-30 14:12:08 +0200 | [diff] [blame] | 843 | if (dev->parent_bus->info->print_dev) |
| 844 | dev->parent_bus->info->print_dev(mon, dev, indent); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 845 | QLIST_FOREACH(child, &dev->child_bus, sibling) { |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 846 | qbus_print(mon, child, indent); |
| 847 | } |
| 848 | } |
| 849 | |
| 850 | static void qbus_print(Monitor *mon, BusState *bus, int indent) |
| 851 | { |
| 852 | struct DeviceState *dev; |
| 853 | |
| 854 | qdev_printf("bus: %s\n", bus->name); |
| 855 | indent += 2; |
Gerd Hoffmann | 10c4c98 | 2009-06-30 14:12:08 +0200 | [diff] [blame] | 856 | qdev_printf("type %s\n", bus->info->name); |
Blue Swirl | 72cf2d4 | 2009-09-12 07:36:22 +0000 | [diff] [blame] | 857 | QLIST_FOREACH(dev, &bus->children, sibling) { |
Gerd Hoffmann | cae4956 | 2009-06-05 15:53:17 +0100 | [diff] [blame] | 858 | qdev_print(mon, dev, indent); |
| 859 | } |
| 860 | } |
| 861 | #undef qdev_printf |
| 862 | |
| 863 | void do_info_qtree(Monitor *mon) |
| 864 | { |
| 865 | if (main_system_bus) |
| 866 | qbus_print(mon, main_system_bus, 0); |
| 867 | } |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 868 | |
Gerd Hoffmann | f6c64e0 | 2009-08-03 15:03:09 +0200 | [diff] [blame] | 869 | void do_info_qdm(Monitor *mon) |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 870 | { |
| 871 | DeviceInfo *info; |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 872 | |
| 873 | for (info = device_info_list; info != NULL; info = info->next) { |
Markus Armbruster | 8a9662c | 2010-02-18 18:44:15 +0100 | [diff] [blame] | 874 | qdev_print_devinfo(info); |
Gerd Hoffmann | 9316d30 | 2009-07-29 13:12:24 +0200 | [diff] [blame] | 875 | } |
| 876 | } |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 877 | |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 878 | int do_device_add(Monitor *mon, const QDict *qdict, QObject **ret_data) |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 879 | { |
| 880 | QemuOpts *opts; |
| 881 | |
Gerd Hoffmann | 3329f07 | 2010-08-20 13:52:01 +0200 | [diff] [blame] | 882 | opts = qemu_opts_from_qdict(qemu_find_opts("device"), qdict); |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 883 | if (!opts) { |
| 884 | return -1; |
Kevin Wolf | 0f853a3 | 2010-02-16 13:12:38 +0100 | [diff] [blame] | 885 | } |
Markus Armbruster | 8bc2724 | 2010-02-10 20:52:01 +0100 | [diff] [blame] | 886 | if (!monitor_cur_is_qmp() && qdev_device_help(opts)) { |
| 887 | qemu_opts_del(opts); |
| 888 | return 0; |
| 889 | } |
| 890 | if (!qdev_device_add(opts)) { |
| 891 | qemu_opts_del(opts); |
| 892 | return -1; |
| 893 | } |
| 894 | return 0; |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 895 | } |
| 896 | |
Markus Armbruster | 17a38ea | 2010-03-22 11:38:14 +0100 | [diff] [blame] | 897 | int do_device_del(Monitor *mon, const QDict *qdict, QObject **ret_data) |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 898 | { |
| 899 | const char *id = qdict_get_str(qdict, "id"); |
| 900 | DeviceState *dev; |
| 901 | |
| 902 | dev = qdev_find_recursive(main_system_bus, id); |
| 903 | if (NULL == dev) { |
Markus Armbruster | 17a38ea | 2010-03-22 11:38:14 +0100 | [diff] [blame] | 904 | qerror_report(QERR_DEVICE_NOT_FOUND, id); |
| 905 | return -1; |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 906 | } |
Markus Armbruster | 17a38ea | 2010-03-22 11:38:14 +0100 | [diff] [blame] | 907 | return qdev_unplug(dev); |
Gerd Hoffmann | 3418bd2 | 2009-09-25 21:42:41 +0200 | [diff] [blame] | 908 | } |
Gleb Natapov | 1ca4d09 | 2010-12-08 13:35:05 +0200 | [diff] [blame] | 909 | |
| 910 | static int qdev_get_fw_dev_path_helper(DeviceState *dev, char *p, int size) |
| 911 | { |
| 912 | int l = 0; |
| 913 | |
| 914 | if (dev && dev->parent_bus) { |
| 915 | char *d; |
| 916 | l = qdev_get_fw_dev_path_helper(dev->parent_bus->parent, p, size); |
| 917 | if (dev->parent_bus->info->get_fw_dev_path) { |
| 918 | d = dev->parent_bus->info->get_fw_dev_path(dev); |
| 919 | l += snprintf(p + l, size - l, "%s", d); |
| 920 | qemu_free(d); |
| 921 | } else { |
| 922 | l += snprintf(p + l, size - l, "%s", dev->info->name); |
| 923 | } |
| 924 | } |
| 925 | l += snprintf(p + l , size - l, "/"); |
| 926 | |
| 927 | return l; |
| 928 | } |
| 929 | |
| 930 | char* qdev_get_fw_dev_path(DeviceState *dev) |
| 931 | { |
| 932 | char path[128]; |
| 933 | int l; |
| 934 | |
| 935 | l = qdev_get_fw_dev_path_helper(dev, path, 128); |
| 936 | |
| 937 | path[l-1] = '\0'; |
| 938 | |
| 939 | return strdup(path); |
| 940 | } |