2 * ide bus support for qdev.
4 * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
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"
22 #include "sysemu/dma.h"
23 #include "qapi/error.h"
24 #include "qemu/error-report.h"
25 #include "qemu/module.h"
26 #include "hw/ide/internal.h"
27 #include "sysemu/block-backend.h"
28 #include "sysemu/blockdev.h"
29 #include "hw/block/block.h"
30 #include "sysemu/sysemu.h"
31 #include "qapi/visitor.h"
33 /* --------------------------------- */
35 static char *idebus_get_fw_dev_path(DeviceState
*dev
);
36 static void idebus_unrealize(BusState
*qdev
, Error
**errp
);
38 static Property ide_props
[] = {
39 DEFINE_PROP_UINT32("unit", IDEDevice
, unit
, -1),
40 DEFINE_PROP_END_OF_LIST(),
43 static void ide_bus_class_init(ObjectClass
*klass
, void *data
)
45 BusClass
*k
= BUS_CLASS(klass
);
47 k
->get_fw_dev_path
= idebus_get_fw_dev_path
;
48 k
->unrealize
= idebus_unrealize
;
51 static void idebus_unrealize(BusState
*bus
, Error
**errp
)
53 IDEBus
*ibus
= IDE_BUS(bus
);
56 qemu_del_vm_change_state_handler(ibus
->vmstate
);
60 static const TypeInfo ide_bus_info
= {
63 .instance_size
= sizeof(IDEBus
),
64 .class_init
= ide_bus_class_init
,
67 void ide_bus_new(IDEBus
*idebus
, size_t idebus_size
, DeviceState
*dev
,
68 int bus_id
, int max_units
)
70 qbus_create_inplace(idebus
, idebus_size
, TYPE_IDE_BUS
, dev
, NULL
);
71 idebus
->bus_id
= bus_id
;
72 idebus
->max_units
= max_units
;
75 static char *idebus_get_fw_dev_path(DeviceState
*dev
)
79 snprintf(path
, sizeof(path
), "%s@%x", qdev_fw_name(dev
),
80 ((IDEBus
*)dev
->parent_bus
)->bus_id
);
82 return g_strdup(path
);
85 static void ide_qdev_realize(DeviceState
*qdev
, Error
**errp
)
87 IDEDevice
*dev
= IDE_DEVICE(qdev
);
88 IDEDeviceClass
*dc
= IDE_DEVICE_GET_CLASS(dev
);
89 IDEBus
*bus
= DO_UPCAST(IDEBus
, qbus
, qdev
->parent_bus
);
91 if (dev
->unit
== -1) {
92 dev
->unit
= bus
->master
? 1 : 0;
95 if (dev
->unit
>= bus
->max_units
) {
96 error_setg(errp
, "Can't create IDE unit %d, bus supports only %d units",
97 dev
->unit
, bus
->max_units
);
104 error_setg(errp
, "IDE unit %d is in use", dev
->unit
);
111 error_setg(errp
, "IDE unit %d is in use", dev
->unit
);
117 error_setg(errp
, "Invalid IDE unit %d", dev
->unit
);
120 dc
->realize(dev
, errp
);
123 IDEDevice
*ide_create_drive(IDEBus
*bus
, int unit
, DriveInfo
*drive
)
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
),
131 qdev_init_nofail(dev
);
132 return DO_UPCAST(IDEDevice
, qdev
, dev
);
135 int ide_get_geometry(BusState
*bus
, int unit
,
136 int16_t *cyls
, int8_t *heads
, int8_t *secs
)
138 IDEState
*s
= &DO_UPCAST(IDEBus
, qbus
, bus
)->ifs
[unit
];
140 if (s
->drive_kind
!= IDE_HD
|| !s
->blk
) {
144 *cyls
= s
->cylinders
;
150 int ide_get_bios_chs_trans(BusState
*bus
, int unit
)
152 return DO_UPCAST(IDEBus
, qbus
, bus
)->ifs
[unit
].chs_trans
;
155 /* --------------------------------- */
157 typedef struct IDEDrive
{
161 static void ide_dev_initfn(IDEDevice
*dev
, IDEDriveKind kind
, Error
**errp
)
163 IDEBus
*bus
= DO_UPCAST(IDEBus
, qbus
, dev
->qdev
.parent_bus
);
164 IDEState
*s
= bus
->ifs
+ dev
->unit
;
167 if (!dev
->conf
.blk
) {
168 if (kind
!= IDE_CD
) {
169 error_setg(errp
, "No drive specified");
172 /* Anonymous BlockBackend for an empty drive */
173 dev
->conf
.blk
= blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL
);
174 ret
= blk_attach_dev(dev
->conf
.blk
, &dev
->qdev
);
179 if (dev
->conf
.discard_granularity
== -1) {
180 dev
->conf
.discard_granularity
= 512;
181 } else if (dev
->conf
.discard_granularity
&&
182 dev
->conf
.discard_granularity
!= 512) {
183 error_setg(errp
, "discard_granularity must be 512 for ide");
187 blkconf_blocksizes(&dev
->conf
);
188 if (dev
->conf
.logical_block_size
!= 512) {
189 error_setg(errp
, "logical_block_size must be 512 for IDE");
193 if (kind
!= IDE_CD
) {
194 if (!blkconf_geometry(&dev
->conf
, &dev
->chs_trans
, 65535, 16, 255,
199 if (!blkconf_apply_backend_options(&dev
->conf
, kind
== IDE_CD
,
200 kind
!= IDE_CD
, errp
)) {
204 if (ide_init_drive(s
, dev
->conf
.blk
, kind
,
205 dev
->version
, dev
->serial
, dev
->model
, dev
->wwn
,
206 dev
->conf
.cyls
, dev
->conf
.heads
, dev
->conf
.secs
,
207 dev
->chs_trans
, errp
) < 0) {
212 dev
->version
= g_strdup(s
->version
);
215 dev
->serial
= g_strdup(s
->drive_serial_str
);
218 add_boot_device_path(dev
->conf
.bootindex
, &dev
->qdev
,
219 dev
->unit
? "/disk@1" : "/disk@0");
222 static void ide_dev_get_bootindex(Object
*obj
, Visitor
*v
, const char *name
,
223 void *opaque
, Error
**errp
)
225 IDEDevice
*d
= IDE_DEVICE(obj
);
227 visit_type_int32(v
, name
, &d
->conf
.bootindex
, errp
);
230 static void ide_dev_set_bootindex(Object
*obj
, Visitor
*v
, const char *name
,
231 void *opaque
, Error
**errp
)
233 IDEDevice
*d
= IDE_DEVICE(obj
);
235 Error
*local_err
= NULL
;
237 visit_type_int32(v
, name
, &boot_index
, &local_err
);
241 /* check whether bootindex is present in fw_boot_order list */
242 check_boot_index(boot_index
, &local_err
);
246 /* change bootindex to a new one */
247 d
->conf
.bootindex
= boot_index
;
250 add_boot_device_path(d
->conf
.bootindex
, &d
->qdev
,
251 d
->unit
? "/disk@1" : "/disk@0");
254 error_propagate(errp
, local_err
);
257 static void ide_dev_instance_init(Object
*obj
)
259 object_property_add(obj
, "bootindex", "int32",
260 ide_dev_get_bootindex
,
261 ide_dev_set_bootindex
, NULL
, NULL
, NULL
);
262 object_property_set_int(obj
, -1, "bootindex", NULL
);
265 static void ide_hd_realize(IDEDevice
*dev
, Error
**errp
)
267 ide_dev_initfn(dev
, IDE_HD
, errp
);
270 static void ide_cd_realize(IDEDevice
*dev
, Error
**errp
)
272 ide_dev_initfn(dev
, IDE_CD
, errp
);
275 static void ide_drive_realize(IDEDevice
*dev
, Error
**errp
)
277 DriveInfo
*dinfo
= NULL
;
280 dinfo
= blk_legacy_dinfo(dev
->conf
.blk
);
283 ide_dev_initfn(dev
, dinfo
&& dinfo
->media_cd
? IDE_CD
: IDE_HD
, errp
);
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)
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(),
303 static void ide_hd_class_init(ObjectClass
*klass
, void *data
)
305 DeviceClass
*dc
= DEVICE_CLASS(klass
);
306 IDEDeviceClass
*k
= IDE_DEVICE_CLASS(klass
);
308 k
->realize
= ide_hd_realize
;
309 dc
->fw_name
= "drive";
310 dc
->desc
= "virtual IDE disk";
311 dc
->props
= ide_hd_properties
;
314 static const TypeInfo ide_hd_info
= {
316 .parent
= TYPE_IDE_DEVICE
,
317 .instance_size
= sizeof(IDEDrive
),
318 .class_init
= ide_hd_class_init
,
321 static Property ide_cd_properties
[] = {
322 DEFINE_IDE_DEV_PROPERTIES(),
323 DEFINE_PROP_END_OF_LIST(),
326 static void ide_cd_class_init(ObjectClass
*klass
, void *data
)
328 DeviceClass
*dc
= DEVICE_CLASS(klass
);
329 IDEDeviceClass
*k
= IDE_DEVICE_CLASS(klass
);
331 k
->realize
= ide_cd_realize
;
332 dc
->fw_name
= "drive";
333 dc
->desc
= "virtual IDE CD-ROM";
334 dc
->props
= ide_cd_properties
;
337 static const TypeInfo ide_cd_info
= {
339 .parent
= TYPE_IDE_DEVICE
,
340 .instance_size
= sizeof(IDEDrive
),
341 .class_init
= ide_cd_class_init
,
344 static Property ide_drive_properties
[] = {
345 DEFINE_IDE_DEV_PROPERTIES(),
346 DEFINE_PROP_END_OF_LIST(),
349 static void ide_drive_class_init(ObjectClass
*klass
, void *data
)
351 DeviceClass
*dc
= DEVICE_CLASS(klass
);
352 IDEDeviceClass
*k
= IDE_DEVICE_CLASS(klass
);
354 k
->realize
= ide_drive_realize
;
355 dc
->fw_name
= "drive";
356 dc
->desc
= "virtual IDE disk or CD-ROM (legacy)";
357 dc
->props
= ide_drive_properties
;
360 static const TypeInfo ide_drive_info
= {
362 .parent
= TYPE_IDE_DEVICE
,
363 .instance_size
= sizeof(IDEDrive
),
364 .class_init
= ide_drive_class_init
,
367 static void ide_device_class_init(ObjectClass
*klass
, void *data
)
369 DeviceClass
*k
= DEVICE_CLASS(klass
);
370 k
->realize
= ide_qdev_realize
;
371 set_bit(DEVICE_CATEGORY_STORAGE
, k
->categories
);
372 k
->bus_type
= TYPE_IDE_BUS
;
373 k
->props
= ide_props
;
376 static const TypeInfo ide_device_type_info
= {
377 .name
= TYPE_IDE_DEVICE
,
378 .parent
= TYPE_DEVICE
,
379 .instance_size
= sizeof(IDEDevice
),
381 .class_size
= sizeof(IDEDeviceClass
),
382 .class_init
= ide_device_class_init
,
383 .instance_init
= ide_dev_instance_init
,
386 static void ide_register_types(void)
388 type_register_static(&ide_bus_info
);
389 type_register_static(&ide_hd_info
);
390 type_register_static(&ide_cd_info
);
391 type_register_static(&ide_drive_info
);
392 type_register_static(&ide_device_type_info
);
395 type_init(ide_register_types
)