1 /*
2 * IDE device functions
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 "qapi/error.h"
22 #include "qapi/qapi-types-block.h"
23 #include "qemu/error-report.h"
24 #include "qemu/module.h"
25 #include "hw/ide/ide-dev.h"
26 #include "system/block-backend.h"
27 #include "system/blockdev.h"
28 #include "system/system.h"
29 #include "qapi/visitor.h"
30 #include "ide-internal.h"
31
32 static const Property ide_props[] = {
33 DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1),
34 DEFINE_PROP_BOOL("win2k-install-hack", IDEDevice, win2k_install_hack, false),
35 };
36
ide_qdev_realize(DeviceState * qdev,Error ** errp)37 static void ide_qdev_realize(DeviceState *qdev, Error **errp)
38 {
39 IDEDevice *dev = IDE_DEVICE(qdev);
40 IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev);
41 IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
42
43 if (dev->unit == -1) {
44 dev->unit = bus->master ? 1 : 0;
45 }
46
47 if (dev->unit >= bus->max_units) {
48 error_setg(errp, "Can't create IDE unit %d, bus supports only %d units",
49 dev->unit, bus->max_units);
50 return;
51 }
52
53 switch (dev->unit) {
54 case 0:
55 if (bus->master) {
56 error_setg(errp, "IDE unit %d is in use", dev->unit);
57 return;
58 }
59 bus->master = dev;
60 break;
61 case 1:
62 if (bus->slave) {
63 error_setg(errp, "IDE unit %d is in use", dev->unit);
64 return;
65 }
66 bus->slave = dev;
67 break;
68 default:
69 error_setg(errp, "Invalid IDE unit %d", dev->unit);
70 return;
71 }
72 dc->realize(dev, errp);
73 }
74
ide_dev_initfn(IDEDevice * dev,IDEDriveKind kind,Error ** errp)75 void ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind, Error **errp)
76 {
77 IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
78 IDEState *s = bus->ifs + dev->unit;
79 int ret;
80
81 if (!dev->conf.blk) {
82 if (kind != IDE_CD) {
83 error_setg(errp, "No drive specified");
84 return;
85 } else {
86 /* Anonymous BlockBackend for an empty drive */
87 dev->conf.blk = blk_new(qemu_get_aio_context(), 0, BLK_PERM_ALL);
88 ret = blk_attach_dev(dev->conf.blk, &dev->qdev);
89 assert(ret == 0);
90 }
91 }
92
93 if (dev->conf.discard_granularity == -1) {
94 dev->conf.discard_granularity = 512;
95 } else if (dev->conf.discard_granularity &&
96 dev->conf.discard_granularity != 512) {
97 error_setg(errp, "discard_granularity must be 512 for ide");
98 return;
99 }
100
101 if (!blkconf_blocksizes(&dev->conf, errp)) {
102 return;
103 }
104
105 if (dev->conf.logical_block_size != 512) {
106 error_setg(errp, "logical_block_size must be 512 for IDE");
107 return;
108 }
109
110 if (kind != IDE_CD) {
111 if (!blkconf_geometry(&dev->conf, &dev->chs_trans, 65535, 16, 255,
112 errp)) {
113 return;
114 }
115 }
116 if (!blkconf_apply_backend_options(&dev->conf, kind == IDE_CD,
117 kind != IDE_CD, errp)) {
118 return;
119 }
120
121 if (ide_init_drive(s, dev, kind, errp) < 0) {
122 return;
123 }
124
125 if (!dev->version) {
126 dev->version = g_strdup(s->version);
127 }
128 if (!dev->serial) {
129 dev->serial = g_strdup(s->drive_serial_str);
130 }
131
132 add_boot_device_path(dev->conf.bootindex, &dev->qdev,
133 dev->unit ? "/disk@1" : "/disk@0");
134
135 add_boot_device_lchs(&dev->qdev, dev->unit ? "/disk@1" : "/disk@0",
136 dev->conf.lcyls,
137 dev->conf.lheads,
138 dev->conf.lsecs);
139 }
140
ide_dev_get_bootindex(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)141 static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
142 void *opaque, Error **errp)
143 {
144 IDEDevice *d = IDE_DEVICE(obj);
145
146 visit_type_int32(v, name, &d->conf.bootindex, errp);
147 }
148
ide_dev_set_bootindex(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)149 static void ide_dev_set_bootindex(Object *obj, Visitor *v, const char *name,
150 void *opaque, Error **errp)
151 {
152 IDEDevice *d = IDE_DEVICE(obj);
153 int32_t boot_index;
154 Error *local_err = NULL;
155
156 if (!visit_type_int32(v, name, &boot_index, errp)) {
157 return;
158 }
159 /* check whether bootindex is present in fw_boot_order list */
160 check_boot_index(boot_index, &local_err);
161 if (local_err) {
162 goto out;
163 }
164 /* change bootindex to a new one */
165 d->conf.bootindex = boot_index;
166
167 if (d->unit != -1) {
168 add_boot_device_path(d->conf.bootindex, &d->qdev,
169 d->unit ? "/disk@1" : "/disk@0");
170 }
171 out:
172 error_propagate(errp, local_err);
173 }
174
ide_dev_instance_init(Object * obj)175 static void ide_dev_instance_init(Object *obj)
176 {
177 object_property_add(obj, "bootindex", "int32",
178 ide_dev_get_bootindex,
179 ide_dev_set_bootindex, NULL, NULL);
180 object_property_set_int(obj, "bootindex", -1, NULL);
181 }
182
ide_hd_realize(IDEDevice * dev,Error ** errp)183 static void ide_hd_realize(IDEDevice *dev, Error **errp)
184 {
185 ide_dev_initfn(dev, IDE_HD, errp);
186 }
187
ide_cd_realize(IDEDevice * dev,Error ** errp)188 static void ide_cd_realize(IDEDevice *dev, Error **errp)
189 {
190 ide_dev_initfn(dev, IDE_CD, errp);
191 }
192
193 static const Property ide_hd_properties[] = {
194 DEFINE_IDE_DEV_PROPERTIES(),
195 DEFINE_BLOCK_CHS_PROPERTIES(IDEDrive, dev.conf),
196 DEFINE_PROP_BIOS_CHS_TRANS("bios-chs-trans",
197 IDEDrive, dev.chs_trans, BIOS_ATA_TRANSLATION_AUTO),
198 DEFINE_PROP_UINT16("rotation_rate", IDEDrive, dev.rotation_rate, 0),
199 };
200
ide_hd_class_init(ObjectClass * klass,const void * data)201 static void ide_hd_class_init(ObjectClass *klass, const void *data)
202 {
203 DeviceClass *dc = DEVICE_CLASS(klass);
204 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
205
206 k->realize = ide_hd_realize;
207 dc->fw_name = "drive";
208 dc->desc = "virtual IDE disk";
209 device_class_set_props(dc, ide_hd_properties);
210 }
211
212 static const TypeInfo ide_hd_info = {
213 .name = "ide-hd",
214 .parent = TYPE_IDE_DEVICE,
215 .instance_size = sizeof(IDEDrive),
216 .class_init = ide_hd_class_init,
217 };
218
219 static const Property ide_cd_properties[] = {
220 DEFINE_IDE_DEV_PROPERTIES(),
221 };
222
ide_cd_class_init(ObjectClass * klass,const void * data)223 static void ide_cd_class_init(ObjectClass *klass, const void *data)
224 {
225 DeviceClass *dc = DEVICE_CLASS(klass);
226 IDEDeviceClass *k = IDE_DEVICE_CLASS(klass);
227
228 k->realize = ide_cd_realize;
229 dc->fw_name = "drive";
230 dc->desc = "virtual IDE CD-ROM";
231 device_class_set_props(dc, ide_cd_properties);
232 }
233
234 static const TypeInfo ide_cd_info = {
235 .name = "ide-cd",
236 .parent = TYPE_IDE_DEVICE,
237 .instance_size = sizeof(IDEDrive),
238 .class_init = ide_cd_class_init,
239 };
240
ide_device_class_init(ObjectClass * klass,const void * data)241 static void ide_device_class_init(ObjectClass *klass, const void *data)
242 {
243 DeviceClass *k = DEVICE_CLASS(klass);
244 k->realize = ide_qdev_realize;
245 set_bit(DEVICE_CATEGORY_STORAGE, k->categories);
246 k->bus_type = TYPE_IDE_BUS;
247 device_class_set_props(k, ide_props);
248 }
249
250 static const TypeInfo ide_device_type_info = {
251 .name = TYPE_IDE_DEVICE,
252 .parent = TYPE_DEVICE,
253 .instance_size = sizeof(IDEDevice),
254 .abstract = true,
255 .class_size = sizeof(IDEDeviceClass),
256 .class_init = ide_device_class_init,
257 .instance_init = ide_dev_instance_init,
258 };
259
ide_register_types(void)260 static void ide_register_types(void)
261 {
262 type_register_static(&ide_hd_info);
263 type_register_static(&ide_cd_info);
264 type_register_static(&ide_device_type_info);
265 }
266
267 type_init(ide_register_types)
268