root / hw / ide / qdev.c @ 65ff544b
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1 | da4d0419 | Gerd Hoffmann | /*
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2 | da4d0419 | Gerd Hoffmann | * ide bus support for qdev.
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3 | da4d0419 | Gerd Hoffmann | *
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4 | da4d0419 | Gerd Hoffmann | * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com>
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5 | da4d0419 | Gerd Hoffmann | *
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6 | da4d0419 | Gerd Hoffmann | * This library is free software; you can redistribute it and/or
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7 | da4d0419 | Gerd Hoffmann | * modify it under the terms of the GNU Lesser General Public
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8 | da4d0419 | Gerd Hoffmann | * License as published by the Free Software Foundation; either
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9 | da4d0419 | Gerd Hoffmann | * version 2 of the License, or (at your option) any later version.
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10 | da4d0419 | Gerd Hoffmann | *
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11 | da4d0419 | Gerd Hoffmann | * This library is distributed in the hope that it will be useful,
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12 | da4d0419 | Gerd Hoffmann | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | da4d0419 | Gerd Hoffmann | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | da4d0419 | Gerd Hoffmann | * Lesser General Public License for more details.
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15 | da4d0419 | Gerd Hoffmann | *
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16 | da4d0419 | Gerd Hoffmann | * You should have received a copy of the GNU Lesser General Public
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17 | da4d0419 | Gerd Hoffmann | * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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18 | da4d0419 | Gerd Hoffmann | */
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19 | da4d0419 | Gerd Hoffmann | #include <hw/hw.h> |
20 | da4d0419 | Gerd Hoffmann | #include "dma.h" |
21 | f597627f | Markus Armbruster | #include "qemu-error.h" |
22 | da4d0419 | Gerd Hoffmann | #include <hw/ide/internal.h> |
23 | 2446333c | Blue Swirl | #include "blockdev.h" |
24 | 1ca4d09a | Gleb Natapov | #include "sysemu.h" |
25 | da4d0419 | Gerd Hoffmann | |
26 | da4d0419 | Gerd Hoffmann | /* --------------------------------- */
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27 | da4d0419 | Gerd Hoffmann | |
28 | dc1a46b6 | Gleb Natapov | static char *idebus_get_fw_dev_path(DeviceState *dev); |
29 | dc1a46b6 | Gleb Natapov | |
30 | da4d0419 | Gerd Hoffmann | static struct BusInfo ide_bus_info = { |
31 | da4d0419 | Gerd Hoffmann | .name = "IDE",
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32 | da4d0419 | Gerd Hoffmann | .size = sizeof(IDEBus),
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33 | dc1a46b6 | Gleb Natapov | .get_fw_dev_path = idebus_get_fw_dev_path, |
34 | da4d0419 | Gerd Hoffmann | }; |
35 | da4d0419 | Gerd Hoffmann | |
36 | 3835510f | Gleb Natapov | void ide_bus_new(IDEBus *idebus, DeviceState *dev, int bus_id) |
37 | da4d0419 | Gerd Hoffmann | { |
38 | 1f850f10 | Gerd Hoffmann | qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
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39 | 3835510f | Gleb Natapov | idebus->bus_id = bus_id; |
40 | da4d0419 | Gerd Hoffmann | } |
41 | da4d0419 | Gerd Hoffmann | |
42 | dc1a46b6 | Gleb Natapov | static char *idebus_get_fw_dev_path(DeviceState *dev) |
43 | dc1a46b6 | Gleb Natapov | { |
44 | dc1a46b6 | Gleb Natapov | char path[30]; |
45 | dc1a46b6 | Gleb Natapov | |
46 | dc1a46b6 | Gleb Natapov | snprintf(path, sizeof(path), "%s@%d", qdev_fw_name(dev), |
47 | dc1a46b6 | Gleb Natapov | ((IDEBus*)dev->parent_bus)->bus_id); |
48 | dc1a46b6 | Gleb Natapov | |
49 | dc1a46b6 | Gleb Natapov | return strdup(path);
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50 | dc1a46b6 | Gleb Natapov | } |
51 | dc1a46b6 | Gleb Natapov | |
52 | da4d0419 | Gerd Hoffmann | static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base) |
53 | da4d0419 | Gerd Hoffmann | { |
54 | da4d0419 | Gerd Hoffmann | IDEDevice *dev = DO_UPCAST(IDEDevice, qdev, qdev); |
55 | da4d0419 | Gerd Hoffmann | IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base); |
56 | da4d0419 | Gerd Hoffmann | IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus); |
57 | da4d0419 | Gerd Hoffmann | |
58 | f8b6cc00 | Markus Armbruster | if (!dev->conf.bs) {
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59 | f597627f | Markus Armbruster | error_report("No drive specified");
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60 | da4d0419 | Gerd Hoffmann | goto err;
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61 | da4d0419 | Gerd Hoffmann | } |
62 | da4d0419 | Gerd Hoffmann | if (dev->unit == -1) { |
63 | da4d0419 | Gerd Hoffmann | dev->unit = bus->master ? 1 : 0; |
64 | da4d0419 | Gerd Hoffmann | } |
65 | da4d0419 | Gerd Hoffmann | switch (dev->unit) {
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66 | da4d0419 | Gerd Hoffmann | case 0: |
67 | da4d0419 | Gerd Hoffmann | if (bus->master) {
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68 | f597627f | Markus Armbruster | error_report("IDE unit %d is in use", dev->unit);
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69 | da4d0419 | Gerd Hoffmann | goto err;
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70 | da4d0419 | Gerd Hoffmann | } |
71 | da4d0419 | Gerd Hoffmann | bus->master = dev; |
72 | da4d0419 | Gerd Hoffmann | break;
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73 | da4d0419 | Gerd Hoffmann | case 1: |
74 | da4d0419 | Gerd Hoffmann | if (bus->slave) {
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75 | f597627f | Markus Armbruster | error_report("IDE unit %d is in use", dev->unit);
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76 | da4d0419 | Gerd Hoffmann | goto err;
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77 | da4d0419 | Gerd Hoffmann | } |
78 | da4d0419 | Gerd Hoffmann | bus->slave = dev; |
79 | da4d0419 | Gerd Hoffmann | break;
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80 | da4d0419 | Gerd Hoffmann | default:
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81 | f597627f | Markus Armbruster | error_report("Invalid IDE unit %d", dev->unit);
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82 | da4d0419 | Gerd Hoffmann | goto err;
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83 | da4d0419 | Gerd Hoffmann | } |
84 | da4d0419 | Gerd Hoffmann | return info->init(dev);
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85 | da4d0419 | Gerd Hoffmann | |
86 | da4d0419 | Gerd Hoffmann | err:
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87 | da4d0419 | Gerd Hoffmann | return -1; |
88 | da4d0419 | Gerd Hoffmann | } |
89 | da4d0419 | Gerd Hoffmann | |
90 | da4d0419 | Gerd Hoffmann | static void ide_qdev_register(IDEDeviceInfo *info) |
91 | da4d0419 | Gerd Hoffmann | { |
92 | da4d0419 | Gerd Hoffmann | info->qdev.init = ide_qdev_init; |
93 | da4d0419 | Gerd Hoffmann | info->qdev.bus_info = &ide_bus_info; |
94 | da4d0419 | Gerd Hoffmann | qdev_register(&info->qdev); |
95 | da4d0419 | Gerd Hoffmann | } |
96 | da4d0419 | Gerd Hoffmann | |
97 | da4d0419 | Gerd Hoffmann | IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
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98 | da4d0419 | Gerd Hoffmann | { |
99 | da4d0419 | Gerd Hoffmann | DeviceState *dev; |
100 | da4d0419 | Gerd Hoffmann | |
101 | da4d0419 | Gerd Hoffmann | dev = qdev_create(&bus->qbus, "ide-drive");
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102 | da4d0419 | Gerd Hoffmann | qdev_prop_set_uint32(dev, "unit", unit);
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103 | 18846dee | Markus Armbruster | qdev_prop_set_drive_nofail(dev, "drive", drive->bdrv);
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104 | fa12fbbe | Markus Armbruster | qdev_init_nofail(dev); |
105 | da4d0419 | Gerd Hoffmann | return DO_UPCAST(IDEDevice, qdev, dev);
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106 | da4d0419 | Gerd Hoffmann | } |
107 | da4d0419 | Gerd Hoffmann | |
108 | c0897e0c | Markus Armbruster | void ide_get_bs(BlockDriverState *bs[], BusState *qbus)
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109 | c0897e0c | Markus Armbruster | { |
110 | c0897e0c | Markus Armbruster | IDEBus *bus = DO_UPCAST(IDEBus, qbus, qbus); |
111 | c0897e0c | Markus Armbruster | bs[0] = bus->master ? bus->master->conf.bs : NULL; |
112 | c0897e0c | Markus Armbruster | bs[1] = bus->slave ? bus->slave->conf.bs : NULL; |
113 | c0897e0c | Markus Armbruster | } |
114 | c0897e0c | Markus Armbruster | |
115 | da4d0419 | Gerd Hoffmann | /* --------------------------------- */
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116 | da4d0419 | Gerd Hoffmann | |
117 | da4d0419 | Gerd Hoffmann | typedef struct IDEDrive { |
118 | da4d0419 | Gerd Hoffmann | IDEDevice dev; |
119 | da4d0419 | Gerd Hoffmann | } IDEDrive; |
120 | da4d0419 | Gerd Hoffmann | |
121 | da4d0419 | Gerd Hoffmann | static int ide_drive_initfn(IDEDevice *dev) |
122 | da4d0419 | Gerd Hoffmann | { |
123 | da4d0419 | Gerd Hoffmann | IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus); |
124 | 6ced55a5 | Markus Armbruster | IDEState *s = bus->ifs + dev->unit; |
125 | 6ced55a5 | Markus Armbruster | const char *serial; |
126 | f8b6cc00 | Markus Armbruster | DriveInfo *dinfo; |
127 | 6ced55a5 | Markus Armbruster | |
128 | 6ced55a5 | Markus Armbruster | serial = dev->serial; |
129 | 6ced55a5 | Markus Armbruster | if (!serial) {
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130 | 6ced55a5 | Markus Armbruster | /* try to fall back to value set with legacy -drive serial=... */
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131 | f8b6cc00 | Markus Armbruster | dinfo = drive_get_by_blockdev(dev->conf.bs); |
132 | f8b6cc00 | Markus Armbruster | if (*dinfo->serial) {
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133 | f8b6cc00 | Markus Armbruster | serial = dinfo->serial; |
134 | f8b6cc00 | Markus Armbruster | } |
135 | 6ced55a5 | Markus Armbruster | } |
136 | 6ced55a5 | Markus Armbruster | |
137 | c4d74df7 | Markus Armbruster | if (ide_init_drive(s, dev->conf.bs, dev->version, serial) < 0) { |
138 | c4d74df7 | Markus Armbruster | return -1; |
139 | c4d74df7 | Markus Armbruster | } |
140 | 6ced55a5 | Markus Armbruster | |
141 | 03432407 | Markus Armbruster | if (!dev->version) {
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142 | 03432407 | Markus Armbruster | dev->version = qemu_strdup(s->version); |
143 | 03432407 | Markus Armbruster | } |
144 | 6ced55a5 | Markus Armbruster | if (!dev->serial) {
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145 | 6ced55a5 | Markus Armbruster | dev->serial = qemu_strdup(s->drive_serial_str); |
146 | 6ced55a5 | Markus Armbruster | } |
147 | 1ca4d09a | Gleb Natapov | |
148 | 1ca4d09a | Gleb Natapov | add_boot_device_path(dev->conf.bootindex, &dev->qdev, |
149 | 1ca4d09a | Gleb Natapov | dev->unit ? "/disk@1" : "/disk@0"); |
150 | 1ca4d09a | Gleb Natapov | |
151 | da4d0419 | Gerd Hoffmann | return 0; |
152 | da4d0419 | Gerd Hoffmann | } |
153 | da4d0419 | Gerd Hoffmann | |
154 | da4d0419 | Gerd Hoffmann | static IDEDeviceInfo ide_drive_info = {
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155 | da4d0419 | Gerd Hoffmann | .qdev.name = "ide-drive",
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156 | 779206de | Gleb Natapov | .qdev.fw_name = "drive",
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157 | da4d0419 | Gerd Hoffmann | .qdev.size = sizeof(IDEDrive),
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158 | da4d0419 | Gerd Hoffmann | .init = ide_drive_initfn, |
159 | da4d0419 | Gerd Hoffmann | .qdev.props = (Property[]) { |
160 | da4d0419 | Gerd Hoffmann | DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1), |
161 | 428c149b | Christoph Hellwig | DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), |
162 | 47c06340 | Gerd Hoffmann | DEFINE_PROP_STRING("ver", IDEDrive, dev.version),
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163 | 6ced55a5 | Markus Armbruster | DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),
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164 | da4d0419 | Gerd Hoffmann | DEFINE_PROP_END_OF_LIST(), |
165 | da4d0419 | Gerd Hoffmann | } |
166 | da4d0419 | Gerd Hoffmann | }; |
167 | da4d0419 | Gerd Hoffmann | |
168 | da4d0419 | Gerd Hoffmann | static void ide_drive_register(void) |
169 | da4d0419 | Gerd Hoffmann | { |
170 | da4d0419 | Gerd Hoffmann | ide_qdev_register(&ide_drive_info); |
171 | da4d0419 | Gerd Hoffmann | } |
172 | da4d0419 | Gerd Hoffmann | device_init(ide_drive_register); |