pcie_aer: support configurable AER capa version
[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 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 #include "qemu/osdep.h"
20 #include "hw/hw.h"
21 #include "sysemu/dma.h"
22 #include "qapi/error.h"
23 #include "qemu/error-report.h"
24 #include "hw/ide/internal.h"
25 #include "sysemu/block-backend.h"
26 #include "sysemu/blockdev.h"
27 #include "hw/block/block.h"
28 #include "sysemu/sysemu.h"
29 #include "qapi/visitor.h"
30
31 /* --------------------------------- */
32
33 static char *idebus_get_fw_dev_path(DeviceState *dev);
34 static void idebus_unrealize(DeviceState *qdev, Error **errp);
35
36 static Property ide_props[] = {
37 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
38 DEFINE_PROP_END_OF_LIST(),
39 };
40
41 static void ide_bus_class_init(ObjectClass *klass, void *data)
42 {
43 BusClass *k = BUS_CLASS(klass);
44
45 k->get_fw_dev_path = idebus_get_fw_dev_path;
46 }
47
48 static void idebus_unrealize(DeviceState *qdev, Error **errp)
49 {
50 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
51
52 if (bus->vmstate) {
53 qemu_del_vm_change_state_handler(bus->vmstate);
54 }
55 }
56
57 static const TypeInfo ide_bus_info = {
58 .name = TYPE_IDE_BUS,
59 .parent = TYPE_BUS,
60 .instance_size = sizeof(IDEBus),
61 .class_init = ide_bus_class_init,
62 };
63
64 void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
65 int bus_id, int max_units)
66 {
67 qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
68 idebus->bus_id = bus_id;
69 idebus->max_units = max_units;
70 }
71
72 static char *idebus_get_fw_dev_path(DeviceState *dev)
73 {
74 char path[30];
75
76 snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
77 ((IDEBus*)dev->parent_bus)->bus_id);
78
79 return g_strdup(path);
80 }
81
82 static int ide_qdev_init(DeviceState *qdev)
83 {
84 IDEDevice *dev = IDE_DEVICE(qdev);
85 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
86 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
87
88 if (dev->unit == -1) {
89 dev->unit = bus->master ? 1 : 0;
90 }
91
92 if (dev->unit >= bus->max_units) {
93 error_report("Can't create IDE unit %d, bus supports only %d units",
94 dev->unit, bus->max_units);
95 goto err;
96 }
97
98 switch (dev->unit) {
99 case 0:
100 if (bus->master) {
101 error_report("IDE unit %d is in use", dev->unit);
102 goto err;
103 }
104 bus->master = dev;
105 break;
106 case 1:
107 if (bus->slave) {
108 error_report("IDE unit %d is in use", dev->unit);
109 goto err;
110 }
111 bus->slave = dev;
112 break;
113 default:
114 error_report("Invalid IDE unit %d", dev->unit);
115 goto err;
116 }
117 return dc->init(dev);
118
119 err:
120 return -1;
121 }
122
123 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
124 {
125 DeviceState *dev;
126
127 dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
128 qdev_prop_set_uint32(dev, "unit", unit);
129 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(drive),
130 &error_fatal);
131 qdev_init_nofail(dev);
132 return DO_UPCAST(IDEDevice, qdev, dev);
133 }
134
135 int ide_get_geometry(BusState *bus, int unit,
136 int16_t *cyls, int8_t *heads, int8_t *secs)
137 {
138 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
139
140 if (s->drive_kind != IDE_HD || !s->blk) {
141 return -1;
142 }
143
144 *cyls = s->cylinders;
145 *heads = s->heads;
146 *secs = s->sectors;
147 return 0;
148 }
149
150 int ide_get_bios_chs_trans(BusState *bus, int unit)
151 {
152 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
153 }
154
155 /* --------------------------------- */
156
157 typedef struct IDEDrive {
158 IDEDevice dev;
159 } IDEDrive;
160
161 static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind)
162 {
163 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
164 IDEState *s = bus->ifs + dev->unit;
165 Error *err = NULL;
166
167 if (!dev->conf.blk) {
168 if (kind != IDE_CD) {
169 error_report("No drive specified");
170 return -1;
171 } else {
172 /* Anonymous BlockBackend for an empty drive */
173 dev->conf.blk = blk_new();
174 }
175 }
176
177 if (dev->conf.discard_granularity == -1) {
178 dev->conf.discard_granularity = 512;
179 } else if (dev->conf.discard_granularity &&
180 dev->conf.discard_granularity != 512) {
181 error_report("discard_granularity must be 512 for ide");
182 return -1;
183 }
184
185 blkconf_blocksizes(&dev->conf);
186 if (dev->conf.logical_block_size != 512) {
187 error_report("logical_block_size must be 512 for IDE");
188 return -1;
189 }
190
191 blkconf_serial(&dev->conf, &dev->serial);
192 if (kind != IDE_CD) {
193 blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255, &err);
194 if (err) {
195 error_report_err(err);
196 return -1;
197 }
198 }
199 blkconf_apply_backend_options(&dev->conf);
200
201 if (ide_init_drive(s, dev->conf.blk, kind,
202 dev->version, dev->serial, dev->model, dev->wwn,
203 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
204 dev->chs_trans) < 0) {
205 return -1;
206 }
207
208 if (!dev->version) {
209 dev->version = g_strdup(s->version);
210 }
211 if (!dev->serial) {
212 dev->serial = g_strdup(s->drive_serial_str);
213 }
214
215 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
216 dev->unit ? "/disk@1" : "/disk@0");
217
218 return 0;
219 }
220
221 static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
222 void *opaque, Error **errp)
223 {
224 IDEDevice *d = IDE_DEVICE(obj);
225
226 visit_type_int32(v, name, &d->conf.bootindex, errp);
227 }
228
229 static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
230 void *opaque, Error **errp)
231 {
232 IDEDevice *d = IDE_DEVICE(obj);
233 int32_t boot_index;
234 Error *local_err = NULL;
235
236 visit_type_int32(v, name, &boot_index, &local_err);
237 if (local_err) {
238 goto out;
239 }
240 /* check whether bootindex is present in fw_boot_order list */
241 check_boot_index(boot_index, &local_err);
242 if (local_err) {
243 goto out;
244 }
245 /* change bootindex to a new one */
246 d->conf.bootindex = boot_index;
247
248 if (d->unit != -1) {
249 add_boot_device_path(d->conf.bootindex, &d->qdev,
250 d->unit ? "/disk@1" : "/disk@0");
251 }
252 out:
253 error_propagate(errp, local_err);
254 }
255
256 static void ide_dev_instance_init(Object *obj)
257 {
258 object_property_add(obj, "bootindex", "int32",
259 ide_dev_get_bootindex,
260 ide_dev_set_bootindex, NULL, NULL, NULL);
261 object_property_set_int(obj, -1, "bootindex", NULL);
262 }
263
264 static int ide_hd_initfn(IDEDevice *dev)
265 {
266 return ide_dev_initfn(dev, IDE_HD);
267 }
268
269 static int ide_cd_initfn(IDEDevice *dev)
270 {
271 return ide_dev_initfn(dev, IDE_CD);
272 }
273
274 static int ide_drive_initfn(IDEDevice *dev)
275 {
276 DriveInfo *dinfo = NULL;
277
278 if (dev->conf.blk) {
279 dinfo = blk_legacy_dinfo(dev->conf.blk);
280 }
281
282 return ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD);
283 }
284
285 #define DEFINE_IDE_DEV_PROPERTIES() \
286 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
287 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
288 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
289 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
290 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
291 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
292
293 static Property ide_hd_properties[] = {
294 DEFINE_IDE_DEV_PROPERTIES(),
295 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
296 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
297 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
298 DEFINE_PROP_END_OF_LIST(),
299 };
300
301 static void ide_hd_class_init(ObjectClass *klass, void *data)
302 {
303 DeviceClass *dc = DEVICE_CLASS(klass);
304 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
305 k->init = ide_hd_initfn;
306 dc->fw_name = "drive";
307 dc->desc = "virtual IDE disk";
308 dc->props = ide_hd_properties;
309 }
310
311 static const TypeInfo ide_hd_info = {
312 .name = "ide-hd",
313 .parent = TYPE_IDE_DEVICE,
314 .instance_size = sizeof(IDEDrive),
315 .class_init = ide_hd_class_init,
316 };
317
318 static Property ide_cd_properties[] = {
319 DEFINE_IDE_DEV_PROPERTIES(),
320 DEFINE_PROP_END_OF_LIST(),
321 };
322
323 static void ide_cd_class_init(ObjectClass *klass, void *data)
324 {
325 DeviceClass *dc = DEVICE_CLASS(klass);
326 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
327 k->init = ide_cd_initfn;
328 dc->fw_name = "drive";
329 dc->desc = "virtual IDE CD-ROM";
330 dc->props = ide_cd_properties;
331 }
332
333 static const TypeInfo ide_cd_info = {
334 .name = "ide-cd",
335 .parent = TYPE_IDE_DEVICE,
336 .instance_size = sizeof(IDEDrive),
337 .class_init = ide_cd_class_init,
338 };
339
340 static Property ide_drive_properties[] = {
341 DEFINE_IDE_DEV_PROPERTIES(),
342 DEFINE_PROP_END_OF_LIST(),
343 };
344
345 static void ide_drive_class_init(ObjectClass *klass, void *data)
346 {
347 DeviceClass *dc = DEVICE_CLASS(klass);
348 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
349 k->init = ide_drive_initfn;
350 dc->fw_name = "drive";
351 dc->desc = "virtual IDE disk or CD-ROM (legacy)";
352 dc->props = ide_drive_properties;
353 }
354
355 static const TypeInfo ide_drive_info = {
356 .name = "ide-drive",
357 .parent = TYPE_IDE_DEVICE,
358 .instance_size = sizeof(IDEDrive),
359 .class_init = ide_drive_class_init,
360 };
361
362 static void ide_device_class_init(ObjectClass *klass, void *data)
363 {
364 DeviceClass *k = DEVICE_CLASS(klass);
365 k->init = ide_qdev_init;
366 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
367 k->bus_type = TYPE_IDE_BUS;
368 k->unrealize = idebus_unrealize;
369 k->props = ide_props;
370 }
371
372 static const TypeInfo ide_device_type_info = {
373 .name = TYPE_IDE_DEVICE,
374 .parent = TYPE_DEVICE,
375 .instance_size = sizeof(IDEDevice),
376 .abstract = true,
377 .class_size = sizeof(IDEDeviceClass),
378 .class_init = ide_device_class_init,
379 .instance_init = ide_dev_instance_init,
380 };
381
382 static void ide_register_types(void)
383 {
384 type_register_static(&ide_bus_info);
385 type_register_static(&ide_hd_info);
386 type_register_static(&ide_cd_info);
387 type_register_static(&ide_drive_info);
388 type_register_static(&ide_device_type_info);
389 }
390
391 type_init(ide_register_types)