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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
33static char *idebus_get_fw_dev_path(DeviceState *dev);
34static void idebus_unrealize(BusState *qdev, Error **errp);
35
36static Property ide_props[] = {
37 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
38 DEFINE_PROP_END_OF_LIST(),
39};
40
41static 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 k->unrealize = idebus_unrealize;
47}
48
49static void idebus_unrealize(BusState *bus, Error **errp)
50{
51 IDEBus *ibus = IDE_BUS(bus);
52
53 if (ibus->vmstate) {
54 qemu_del_vm_change_state_handler(ibus->vmstate);
55 }
56}
57
58static const TypeInfo ide_bus_info = {
59 .name = TYPE_IDE_BUS,
60 .parent = TYPE_BUS,
61 .instance_size = sizeof(IDEBus),
62 .class_init = ide_bus_class_init,
63};
64
65void ide_bus_new(IDEBus *idebus, size_t idebus_size, DeviceState *dev,
66 int bus_id, int max_units)
67{
68 qbus_create_inplace(idebus, idebus_size, TYPE_IDE_BUS, dev, NULL);
69 idebus->bus_id = bus_id;
70 idebus->max_units = max_units;
71}
72
73static char *idebus_get_fw_dev_path(DeviceState *dev)
74{
75 char path[30];
76
77 snprintf(path, sizeof(path), "%s@%x", qdev_fw_name(dev),
78 ((IDEBus*)dev->parent_bus)->bus_id);
79
80 return g_strdup(path);
81}
82
83static void ide_qdev_realize(DeviceState *qdev, Error **errp)
84{
85 IDEDevice *dev = IDE_DEVICE(qdev);
86 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
87 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
88
89 if (dev->unit == -1) {
90 dev->unit = bus->master ? 1 : 0;
91 }
92
93 if (dev->unit >= bus->max_units) {
94 error_setg(errp, "Can't create IDE unit %d, bus supports only %d units",
95 dev->unit, bus->max_units);
96 return;
97 }
98
99 switch (dev->unit) {
100 case 0:
101 if (bus->master) {
102 error_setg(errp, "IDE unit %d is in use", dev->unit);
103 return;
104 }
105 bus->master = dev;
106 break;
107 case 1:
108 if (bus->slave) {
109 error_setg(errp, "IDE unit %d is in use", dev->unit);
110 return;
111 }
112 bus->slave = dev;
113 break;
114 default:
115 error_setg(errp, "Invalid IDE unit %d", dev->unit);
116 return;
117 }
118 dc->realize(dev, errp);
119}
120
121IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
122{
123 DeviceState *dev;
124
125 dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd");
126 qdev_prop_set_uint32(dev, "unit", unit);
127 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(drive),
128 &error_fatal);
129 qdev_init_nofail(dev);
130 return DO_UPCAST(IDEDevice, qdev, dev);
131}
132
133int ide_get_geometry(BusState *bus, int unit,
134 int16_t *cyls, int8_t *heads, int8_t *secs)
135{
136 IDEState *s = &DO_UPCAST(IDEBus, qbus, bus)->ifs[unit];
137
138 if (s->drive_kind != IDE_HD || !s->blk) {
139 return -1;
140 }
141
142 *cyls = s->cylinders;
143 *heads = s->heads;
144 *secs = s->sectors;
145 return 0;
146}
147
148int ide_get_bios_chs_trans(BusState *bus, int unit)
149{
150 return DO_UPCAST(IDEBus, qbus, bus)->ifs[unit].chs_trans;
151}
152
153
154
155typedef struct IDEDrive {
156 IDEDevice dev;
157} IDEDrive;
158
159static void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
160{
161 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
162 IDEState *s = bus->ifs + dev->unit;
163 Error *err = NULL;
164 int ret;
165
166 if (!dev->conf.blk) {
167 if (kind != IDE_CD) {
168 error_setg(errp, "No drive specified");
169 return;
170 } else {
171
172 dev->conf.blk = blk_new(0, BLK_PERM_ALL);
173 ret = blk_attach_dev(dev->conf.blk, &dev->qdev);
174 assert(ret == 0);
175 }
176 }
177
178 if (dev->conf.discard_granularity == -1) {
179 dev->conf.discard_granularity = 512;
180 } else if (dev->conf.discard_granularity &&
181 dev->conf.discard_granularity != 512) {
182 error_setg(errp, "discard_granularity must be 512 for ide");
183 return;
184 }
185
186 blkconf_blocksizes(&dev->conf);
187 if (dev->conf.logical_block_size != 512) {
188 error_setg(errp, "logical_block_size must be 512 for IDE");
189 return;
190 }
191
192 blkconf_serial(&dev->conf, &dev->serial);
193 if (kind != IDE_CD) {
194 blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255, &err);
195 if (err) {
196 error_propagate(errp, err);
197 return;
198 }
199 }
200 blkconf_apply_backend_options(&dev->conf, kind == IDE_CD, kind != IDE_CD,
201 &err);
202 if (err) {
203 error_propagate(errp, err);
204 return;
205 }
206
207 if (ide_init_drive(s, dev->conf.blk, kind,
208 dev->version, dev->serial, dev->model, dev->wwn,
209 dev->conf.cyls, dev->conf.heads, dev->conf.secs,
210 dev->chs_trans, errp) < 0) {
211 return;
212 }
213
214 if (!dev->version) {
215 dev->version = g_strdup(s->version);
216 }
217 if (!dev->serial) {
218 dev->serial = g_strdup(s->drive_serial_str);
219 }
220
221 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
222 dev->unit ? "/disk@1" : "/disk@0");
223}
224
225static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
226 void *opaque, Error **errp)
227{
228 IDEDevice *d = IDE_DEVICE(obj);
229
230 visit_type_int32(v, name, &d->conf.bootindex, errp);
231}
232
233static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
234 void *opaque, Error **errp)
235{
236 IDEDevice *d = IDE_DEVICE(obj);
237 int32_t boot_index;
238 Error *local_err = NULL;
239
240 visit_type_int32(v, name, &boot_index, &local_err);
241 if (local_err) {
242 goto out;
243 }
244
245 check_boot_index(boot_index, &local_err);
246 if (local_err) {
247 goto out;
248 }
249
250 d->conf.bootindex = boot_index;
251
252 if (d->unit != -1) {
253 add_boot_device_path(d->conf.bootindex, &d->qdev,
254 d->unit ? "/disk@1" : "/disk@0");
255 }
256out:
257 error_propagate(errp, local_err);
258}
259
260static void ide_dev_instance_init(Object *obj)
261{
262 object_property_add(obj, "bootindex", "int32",
263 ide_dev_get_bootindex,
264 ide_dev_set_bootindex, NULL, NULL, NULL);
265 object_property_set_int(obj, -1, "bootindex", NULL);
266}
267
268static void ide_hd_realize(IDEDevice *dev, Error **errp)
269{
270 ide_dev_initfn(dev, IDE_HD, errp);
271}
272
273static void ide_cd_realize(IDEDevice *dev, Error **errp)
274{
275 ide_dev_initfn(dev, IDE_CD, errp);
276}
277
278static void ide_drive_realize(IDEDevice *dev, Error **errp)
279{
280 DriveInfo *dinfo = NULL;
281
282 if (dev->conf.blk) {
283 dinfo = blk_legacy_dinfo(dev->conf.blk);
284 }
285
286 ide_dev_initfn(dev, dinfo && dinfo->media_cd ? IDE_CD : IDE_HD, errp);
287}
288
289#define DEFINE_IDE_DEV_PROPERTIES() \
290 DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \
291 DEFINE_BLOCK_ERROR_PROPERTIES(IDEDrive, dev.conf), \
292 DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \
293 DEFINE_PROP_UINT64("wwn", IDEDrive, dev.wwn, 0), \
294 DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),\
295 DEFINE_PROP_STRING("model", IDEDrive, dev.model)
296
297static Property ide_hd_properties[] = {
298 DEFINE_IDE_DEV_PROPERTIES(),
299 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
300 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
301 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
302 DEFINE_PROP_UINT16("rotation_rate", IDEDrive, dev.rotation_rate, 0),
303 DEFINE_PROP_END_OF_LIST(),
304};
305
306static void ide_hd_class_init(ObjectClass *klass, void *data)
307{
308 DeviceClass *dc = DEVICE_CLASS(klass);
309 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
310
311 k->realize = ide_hd_realize;
312 dc->fw_name = "drive";
313 dc->desc = "virtual IDE disk";
314 dc->props = ide_hd_properties;
315}
316
317static const TypeInfo ide_hd_info = {
318 .name = "ide-hd",
319 .parent = TYPE_IDE_DEVICE,
320 .instance_size = sizeof(IDEDrive),
321 .class_init = ide_hd_class_init,
322};
323
324static Property ide_cd_properties[] = {
325 DEFINE_IDE_DEV_PROPERTIES(),
326 DEFINE_PROP_END_OF_LIST(),
327};
328
329static void ide_cd_class_init(ObjectClass *klass, void *data)
330{
331 DeviceClass *dc = DEVICE_CLASS(klass);
332 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
333
334 k->realize = ide_cd_realize;
335 dc->fw_name = "drive";
336 dc->desc = "virtual IDE CD-ROM";
337 dc->props = ide_cd_properties;
338}
339
340static const TypeInfo ide_cd_info = {
341 .name = "ide-cd",
342 .parent = TYPE_IDE_DEVICE,
343 .instance_size = sizeof(IDEDrive),
344 .class_init = ide_cd_class_init,
345};
346
347static Property ide_drive_properties[] = {
348 DEFINE_IDE_DEV_PROPERTIES(),
349 DEFINE_PROP_END_OF_LIST(),
350};
351
352static void ide_drive_class_init(ObjectClass *klass, void *data)
353{
354 DeviceClass *dc = DEVICE_CLASS(klass);
355 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
356
357 k->realize = ide_drive_realize;
358 dc->fw_name = "drive";
359 dc->desc = "virtual IDE disk or CD-ROM (legacy)";
360 dc->props = ide_drive_properties;
361}
362
363static const TypeInfo ide_drive_info = {
364 .name = "ide-drive",
365 .parent = TYPE_IDE_DEVICE,
366 .instance_size = sizeof(IDEDrive),
367 .class_init = ide_drive_class_init,
368};
369
370static void ide_device_class_init(ObjectClass *klass, void *data)
371{
372 DeviceClass *k = DEVICE_CLASS(klass);
373 k->realize = ide_qdev_realize;
374 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
375 k->bus_type = TYPE_IDE_BUS;
376 k->props = ide_props;
377}
378
379static const TypeInfo ide_device_type_info = {
380 .name = TYPE_IDE_DEVICE,
381 .parent = TYPE_DEVICE,
382 .instance_size = sizeof(IDEDevice),
383 .abstract = true,
384 .class_size = sizeof(IDEDeviceClass),
385 .class_init = ide_device_class_init,
386 .instance_init = ide_dev_instance_init,
387};
388
389static void ide_register_types(void)
390{
391 type_register_static(&ide_bus_info);
392 type_register_static(&ide_hd_info);
393 type_register_static(&ide_cd_info);
394 type_register_static(&ide_drive_info);
395 type_register_static(&ide_device_type_info);
396}
397
398type_init(ide_register_types)
399
