Fix version for v6.2.0-rc2 release
[qemu.git] / hw / ide / qdev.c
1 /*
2 * ide bus support for qdev.
3 *
4 * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
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 2.1 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
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "qemu/osdep.h"
21 #include "sysemu/dma.h"
22 #include "qapi/error.h"
23 #include "qapi/qapi-types-block.h"
24 #include "qemu/error-report.h"
25 #include "qemu/main-loop.h"
26 #include "qemu/module.h"
27 #include "hw/ide/internal.h"
28 #include "hw/qdev-properties.h"
29 #include "hw/qdev-properties-system.h"
30 #include "sysemu/block-backend.h"
31 #include "sysemu/blockdev.h"
32 #include "hw/block/block.h"
33 #include "sysemu/sysemu.h"
34 #include "sysemu/runstate.h"
35 #include "qapi/visitor.h"
36
37 /* --------------------------------- */
38
39 static char *idebus_get_fw_dev_path(DeviceState *dev);
40 static void idebus_unrealize(BusState *qdev);
41
42 static Property ide_props[] = {
43 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
44 DEFINE_PROP_END_OF_LIST(),
45 };
46
47 static void ide_bus_class_init(ObjectClass *klass, void *data)
48 {
49 BusClass *k = BUS_CLASS(klass);
50
51 k->get_fw_dev_path = idebus_get_fw_dev_path;
52 k->unrealize = idebus_unrealize;
53 }
54
55 static void idebus_unrealize(BusState *bus)
56 {
57 IDEBus *ibus = IDE_BUS(bus);
58
59 if (ibus->vmstate) {
60 qemu_del_vm_change_state_handler(ibus->vmstate);
61 }
62 }
63
64 static const TypeInfo ide_bus_info = {
65 .name = TYPE_IDE_BUS,
66 .parent = TYPE_BUS,
67 .instance_size = sizeof(IDEBus),
68 .class_init = ide_bus_class_init,
69 };
70
71 void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
72 int bus_id, int max_units)
73 {
74 qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
75 idebus->bus_id = bus_id;
76 idebus->max_units = max_units;
77 }
78
79 static char *idebus_get_fw_dev_path(DeviceState *dev)
80 {
81 char path[30];
82
83 snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
84 ((IDEBus*)dev->parent_bus)->bus_id);
85
86 return g_strdup(path);
87 }
88
89 static void ide_qdev_realize(DeviceState *qdev, Error **errp)
90 {
91 IDEDevice *dev = IDE_DEVICE(qdev);
92 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
93 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
94
95 if (dev->unit == -1) {
96 dev->unit = bus->master ? 1 : 0;
97 }
98
99 if (dev->unit >= bus->max_units) {
100 error_setg(errp, "Can't create IDE unit %d, bus supports only %d units",
101 dev->unit, bus->max_units);
102 return;
103 }
104
105 switch (dev->unit) {
106 case 0:
107 if (bus->master) {
108 error_setg(errp, "IDE unit %d is in use", dev->unit);
109 return;
110 }
111 bus->master = dev;
112 break;
113 case 1:
114 if (bus->slave) {
115 error_setg(errp, "IDE unit %d is in use", dev->unit);
116 return;
117 }
118 bus->slave = dev;
119 break;
120 default:
121 error_setg(errp, "Invalid IDE unit %d", dev->unit);
122 return;
123 }
124 dc->realize(dev, errp);
125 }
126
127 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
128 {
129 DeviceState *dev;
130
131 dev = qdev_new(drive->media_cd ? "ide-cd" : "ide-hd");
132 qdev_prop_set_uint32(dev, "unit", unit);
133 qdev_prop_set_drive_err(dev, "drive", blk_by_legacy_dinfo(drive),
134 &error_fatal);
135 qdev_realize_and_unref(dev, &bus->qbus, &error_fatal);
136 return DO_UPCAST(IDEDevice, qdev, dev);
137 }
138
139 int ide_get_geometry(BusState *bus, int unit,
140 int16_t *cyls, int8_t *heads, int8_t *secs)
141 {
142 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
143
144 if (s->drive_kind != IDE_HD || !s->blk) {
145 return -1;
146 }
147
148 *cyls = s->cylinders;
149 *heads = s->heads;
150 *secs = s->sectors;
151 return 0;
152 }
153
154 int ide_get_bios_chs_trans(BusState *bus, int unit)
155 {
156 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
157 }
158
159 /* --------------------------------- */
160
161 typedef struct IDEDrive {
162 IDEDevice dev;
163 } IDEDrive;
164
165 static void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
166 {
167 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
168 IDEState *s = bus->ifs + dev->unit;
169 int ret;
170
171 if (!dev->conf.blk) {
172 if (kind != IDE_CD) {
173 error_setg(errp, "No drive specified");
174 return;
175 } else {
176 /* Anonymous BlockBackend for an empty drive */
177 dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
178 ret = blk_attach_dev(dev->conf.blk, &dev->qdev);
179 assert(ret == 0);
180 }
181 }
182
183 if (dev->conf.discard_granularity == -1) {
184 dev->conf.discard_granularity = 512;
185 } else if (dev->conf.discard_granularity &&
186 dev->conf.discard_granularity != 512) {
187 error_setg(errp, "discard_granularity must be 512 for ide");
188 return;
189 }
190
191 if (!blkconf_blocksizes(&dev->conf, errp)) {
192 return;
193 }
194
195 if (dev->conf.logical_block_size != 512) {
196 error_setg(errp, "logical_block_size must be 512 for IDE");
197 return;
198 }
199
200 if (kind != IDE_CD) {
201 if (!blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255,
202 errp)) {
203 return;
204 }
205 }
206 if (!blkconf_apply_backend_options(&dev->conf, kind == IDE_CD,
207 kind != IDE_CD, errp)) {
208 return;
209 }
210
211 if (ide_init_drive(s, dev->conf.blk, kind,
212 dev->version, dev->serial, dev->model, dev->wwn,
213 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
214 dev->chs_trans, errp) < 0) {
215 return;
216 }
217
218 if (!dev->version) {
219 dev->version = g_strdup(s->version);
220 }
221 if (!dev->serial) {
222 dev->serial = g_strdup(s->drive_serial_str);
223 }
224
225 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
226 dev->unit ? "/disk@1" : "/disk@0");
227
228 add_boot_device_lchs(&dev->qdev, dev->unit ? "/disk@1" : "/disk@0",
229 dev->conf.lcyls,
230 dev->conf.lheads,
231 dev->conf.lsecs);
232 }
233
234 static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
235 void *opaque, Error **errp)
236 {
237 IDEDevice *d = IDE_DEVICE(obj);
238
239 visit_type_int32(v, name, &d->conf.bootindex, errp);
240 }
241
242 static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
243 void *opaque, Error **errp)
244 {
245 IDEDevice *d = IDE_DEVICE(obj);
246 int32_t boot_index;
247 Error *local_err = NULL;
248
249 if (!visit_type_int32(v, name, &boot_index, errp)) {
250 return;
251 }
252 /* check whether bootindex is present in fw_boot_order list */
253 check_boot_index(boot_index, &local_err);
254 if (local_err) {
255 goto out;
256 }
257 /* change bootindex to a new one */
258 d->conf.bootindex = boot_index;
259
260 if (d->unit != -1) {
261 add_boot_device_path(d->conf.bootindex, &d->qdev,
262 d->unit ? "/disk@1" : "/disk@0");
263 }
264 out:
265 error_propagate(errp, local_err);
266 }
267
268 static void ide_dev_instance_init(Object *obj)
269 {
270 object_property_add(obj, "bootindex", "int32",
271 ide_dev_get_bootindex,
272 ide_dev_set_bootindex, NULL, NULL);
273 object_property_set_int(obj, "bootindex", -1, NULL);
274 }
275
276 static void ide_hd_realize(IDEDevice *dev, Error **errp)
277 {
278 ide_dev_initfn(dev, IDE_HD, errp);
279 }
280
281 static void ide_cd_realize(IDEDevice *dev, Error **errp)
282 {
283 ide_dev_initfn(dev, IDE_CD, errp);
284 }
285
286 #define DEFINE_IDE_DEV_PROPERTIES() \
287 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
288 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
289 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
290 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
291 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
292 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
293
294 static Property ide_hd_properties[] = {
295 DEFINE_IDE_DEV_PROPERTIES(),
296 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
297 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
298 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
299 DEFINE_PROP_UINT16("rotation_rate", IDEDrive, dev.rotation_rate, 0),
300 DEFINE_PROP_END_OF_LIST(),
301 };
302
303 static void ide_hd_class_init(ObjectClass *klass, void *data)
304 {
305 DeviceClass *dc = DEVICE_CLASS(klass);
306 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
307
308 k->realize = ide_hd_realize;
309 dc->fw_name = "drive";
310 dc->desc = "virtual IDE disk";
311 device_class_set_props(dc, ide_hd_properties);
312 }
313
314 static const TypeInfo ide_hd_info = {
315 .name = "ide-hd",
316 .parent = TYPE_IDE_DEVICE,
317 .instance_size = sizeof(IDEDrive),
318 .class_init = ide_hd_class_init,
319 };
320
321 static Property ide_cd_properties[] = {
322 DEFINE_IDE_DEV_PROPERTIES(),
323 DEFINE_PROP_END_OF_LIST(),
324 };
325
326 static void ide_cd_class_init(ObjectClass *klass, void *data)
327 {
328 DeviceClass *dc = DEVICE_CLASS(klass);
329 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
330
331 k->realize = ide_cd_realize;
332 dc->fw_name = "drive";
333 dc->desc = "virtual IDE CD-ROM";
334 device_class_set_props(dc, ide_cd_properties);
335 }
336
337 static const TypeInfo ide_cd_info = {
338 .name = "ide-cd",
339 .parent = TYPE_IDE_DEVICE,
340 .instance_size = sizeof(IDEDrive),
341 .class_init = ide_cd_class_init,
342 };
343
344 static void ide_device_class_init(ObjectClass *klass, void *data)
345 {
346 DeviceClass *k = DEVICE_CLASS(klass);
347 k->realize = ide_qdev_realize;
348 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
349 k->bus_type = TYPE_IDE_BUS;
350 device_class_set_props(k, ide_props);
351 }
352
353 static const TypeInfo ide_device_type_info = {
354 .name = TYPE_IDE_DEVICE,
355 .parent = TYPE_DEVICE,
356 .instance_size = sizeof(IDEDevice),
357 .abstract = true,
358 .class_size = sizeof(IDEDeviceClass),
359 .class_init = ide_device_class_init,
360 .instance_init = ide_dev_instance_init,
361 };
362
363 static void ide_register_types(void)
364 {
365 type_register_static(&ide_bus_info);
366 type_register_static(&ide_hd_info);
367 type_register_static(&ide_cd_info);
368 type_register_static(&ide_device_type_info);
369 }
370
371 type_init(ide_register_types)