2 * ide bus support for qdev.
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.
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.
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/>.
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 "sysemu/block-backend.h"
29 #include "sysemu/blockdev.h"
30 #include "hw/block/block.h"
31 #include "sysemu/sysemu.h"
32 #include "qapi/visitor.h"
34 /* --------------------------------- */
36 static char *idebus_get_fw_dev_path(DeviceState *dev);
37 static void idebus_unrealize(BusState *qdev, Error **errp);
39 static Property ide_props[] = {
40 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
41 DEFINE_PROP_END_OF_LIST(),
44 static void ide_bus_class_init(ObjectClass *klass, void *data)
46 BusClass *k = BUS_CLASS(klass);
48 k->get_fw_dev_path = idebus_get_fw_dev_path;
49 k->unrealize = idebus_unrealize;
52 static void idebus_unrealize(BusState *bus, Error **errp)
54 IDEBus *ibus = IDE_BUS(bus);
57 qemu_del_vm_change_state_handler(ibus->vmstate);
61 static const TypeInfo ide_bus_info = {
64 .instance_size = sizeof(IDEBus),
65 .class_init = ide_bus_class_init,
68 void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
69 int bus_id, int max_units)
71 qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
72 idebus->bus_id = bus_id;
73 idebus->max_units = max_units;
76 static char *idebus_get_fw_dev_path(DeviceState *dev)
80 snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
81 ((IDEBus*)dev->parent_bus)->bus_id);
83 return g_strdup(path);
86 static void ide_qdev_realize(DeviceState *qdev, Error **errp)
88 IDEDevice *dev = IDE_DEVICE(qdev);
89 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
90 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
92 if (dev->unit == -1) {
93 dev->unit = bus->master ? 1 : 0;
96 if (dev->unit >= bus->max_units) {
97 error_setg(errp, "Can't create IDE unit %d, bus supports only %d units",
98 dev->unit, bus->max_units);
105 error_setg(errp, "IDE unit %d is in use", dev->unit);
112 error_setg(errp, "IDE unit %d is in use", dev->unit);
118 error_setg(errp, "Invalid IDE unit %d", dev->unit);
121 dc->realize(dev, errp);
124 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
128 dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
129 qdev_prop_set_uint32(dev, "unit", unit);
130 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(drive),
132 qdev_init_nofail(dev);
133 return DO_UPCAST(IDEDevice, qdev, dev);
136 int ide_get_geometry(BusState *bus, int unit,
137 int16_t *cyls, int8_t *heads, int8_t *secs)
139 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
141 if (s->drive_kind != IDE_HD || !s->blk) {
145 *cyls = s->cylinders;
151 int ide_get_bios_chs_trans(BusState *bus, int unit)
153 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
156 /* --------------------------------- */
158 typedef struct IDEDrive {
162 static void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
164 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
165 IDEState *s = bus->ifs + dev->unit;
168 if (!dev->conf.blk) {
169 if (kind != IDE_CD) {
170 error_setg(errp, "No drive specified");
173 /* Anonymous BlockBackend for an empty drive */
174 dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
175 ret = blk_attach_dev(dev->conf.blk, &dev->qdev);
180 if (dev->conf.discard_granularity == -1) {
181 dev->conf.discard_granularity = 512;
182 } else if (dev->conf.discard_granularity &&
183 dev->conf.discard_granularity != 512) {
184 error_setg(errp, "discard_granularity must be 512 for ide");
188 blkconf_blocksizes(&dev->conf);
189 if (dev->conf.logical_block_size != 512) {
190 error_setg(errp, "logical_block_size must be 512 for IDE");
194 if (kind != IDE_CD) {
195 if (!blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255,
200 if (!blkconf_apply_backend_options(&dev->conf, kind == IDE_CD,
201 kind != IDE_CD, errp)) {
205 if (ide_init_drive(s, dev->conf.blk, kind,
206 dev->version, dev->serial, dev->model, dev->wwn,
207 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
208 dev->chs_trans, errp) < 0) {
213 dev->version = g_strdup(s->version);
216 dev->serial = g_strdup(s->drive_serial_str);
219 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
220 dev->unit ? "/disk@1" : "/disk@0");
223 static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
224 void *opaque, Error **errp)
226 IDEDevice *d = IDE_DEVICE(obj);
228 visit_type_int32(v, name, &d->conf.bootindex, errp);
231 static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
232 void *opaque, Error **errp)
234 IDEDevice *d = IDE_DEVICE(obj);
236 Error *local_err = NULL;
238 visit_type_int32(v, name, &boot_index, &local_err);
242 /* check whether bootindex is present in fw_boot_order list */
243 check_boot_index(boot_index, &local_err);
247 /* change bootindex to a new one */
248 d->conf.bootindex = boot_index;
251 add_boot_device_path(d->conf.bootindex, &d->qdev,
252 d->unit ? "/disk@1" : "/disk@0");
255 error_propagate(errp, local_err);
258 static void ide_dev_instance_init(Object *obj)
260 object_property_add(obj, "bootindex", "int32",
261 ide_dev_get_bootindex,
262 ide_dev_set_bootindex, NULL, NULL, NULL);
263 object_property_set_int(obj, -1, "bootindex", NULL);
266 static void ide_hd_realize(IDEDevice *dev, Error **errp)
268 ide_dev_initfn(dev, IDE_HD, errp);
271 static void ide_cd_realize(IDEDevice *dev, Error **errp)
273 ide_dev_initfn(dev, IDE_CD, errp);
276 static void ide_drive_realize(IDEDevice *dev, Error **errp)
278 DriveInfo *dinfo = NULL;
281 dinfo = blk_legacy_dinfo(dev->conf.blk);
284 ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD, errp);
287 #define DEFINE_IDE_DEV_PROPERTIES() \
288 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
289 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
290 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
291 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
292 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
293 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
295 static Property ide_hd_properties[] = {
296 DEFINE_IDE_DEV_PROPERTIES(),
297 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
298 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
299 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
300 DEFINE_PROP_UINT16("rotation_rate", IDEDrive, dev.rotation_rate, 0),
301 DEFINE_PROP_END_OF_LIST(),
304 static void ide_hd_class_init(ObjectClass *klass, void *data)
306 DeviceClass *dc = DEVICE_CLASS(klass);
307 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
309 k->realize = ide_hd_realize;
310 dc->fw_name = "drive";
311 dc->desc = "virtual IDE disk";
312 dc->props = ide_hd_properties;
315 static const TypeInfo ide_hd_info = {
317 .parent = TYPE_IDE_DEVICE,
318 .instance_size = sizeof(IDEDrive),
319 .class_init = ide_hd_class_init,
322 static Property ide_cd_properties[] = {
323 DEFINE_IDE_DEV_PROPERTIES(),
324 DEFINE_PROP_END_OF_LIST(),
327 static void ide_cd_class_init(ObjectClass *klass, void *data)
329 DeviceClass *dc = DEVICE_CLASS(klass);
330 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
332 k->realize = ide_cd_realize;
333 dc->fw_name = "drive";
334 dc->desc = "virtual IDE CD-ROM";
335 dc->props = ide_cd_properties;
338 static const TypeInfo ide_cd_info = {
340 .parent = TYPE_IDE_DEVICE,
341 .instance_size = sizeof(IDEDrive),
342 .class_init = ide_cd_class_init,
345 static Property ide_drive_properties[] = {
346 DEFINE_IDE_DEV_PROPERTIES(),
347 DEFINE_PROP_END_OF_LIST(),
350 static void ide_drive_class_init(ObjectClass *klass, void *data)
352 DeviceClass *dc = DEVICE_CLASS(klass);
353 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
355 k->realize = ide_drive_realize;
356 dc->fw_name = "drive";
357 dc->desc = "virtual IDE disk or CD-ROM (legacy)";
358 dc->props = ide_drive_properties;
361 static const TypeInfo ide_drive_info = {
363 .parent = TYPE_IDE_DEVICE,
364 .instance_size = sizeof(IDEDrive),
365 .class_init = ide_drive_class_init,
368 static void ide_device_class_init(ObjectClass *klass, void *data)
370 DeviceClass *k = DEVICE_CLASS(klass);
371 k->realize = ide_qdev_realize;
372 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
373 k->bus_type = TYPE_IDE_BUS;
374 k->props = ide_props;
377 static const TypeInfo ide_device_type_info = {
378 .name = TYPE_IDE_DEVICE,
379 .parent = TYPE_DEVICE,
380 .instance_size = sizeof(IDEDevice),
382 .class_size = sizeof(IDEDeviceClass),
383 .class_init = ide_device_class_init,
384 .instance_init = ide_dev_instance_init,
387 static void ide_register_types(void)
389 type_register_static(&ide_bus_info);
390 type_register_static(&ide_hd_info);
391 type_register_static(&ide_cd_info);
392 type_register_static(&ide_drive_info);
393 type_register_static(&ide_device_type_info);
396 type_init(ide_register_types)