The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Block driver for RAW files (win32) |
| 3 | * |
| 4 | * Copyright (c) 2006 Fabrice Bellard |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to deal |
| 8 | * in the Software without restriction, including without limitation the rights |
| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | * copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in |
| 14 | * all copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | * THE SOFTWARE. |
| 23 | */ |
| 24 | #include "qemu-common.h" |
| 25 | #include "qemu-timer.h" |
| 26 | #include "block_int.h" |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 27 | #include "module.h" |
| 28 | #include <windows.h> |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 29 | #include <winioctl.h> |
| 30 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 31 | #define FTYPE_FILE 0 |
| 32 | #define FTYPE_CD 1 |
| 33 | #define FTYPE_HARDDISK 2 |
| 34 | |
| 35 | typedef struct BDRVRawState { |
| 36 | HANDLE hfile; |
| 37 | int type; |
| 38 | char drive_path[16]; /* format: "d:\" */ |
| 39 | } BDRVRawState; |
| 40 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 41 | int qemu_ftruncate64(int fd, int64_t length) |
| 42 | { |
| 43 | LARGE_INTEGER li; |
| 44 | LONG high; |
| 45 | HANDLE h; |
| 46 | BOOL res; |
| 47 | |
| 48 | if ((GetVersion() & 0x80000000UL) && (length >> 32) != 0) |
| 49 | return -1; |
| 50 | |
| 51 | h = (HANDLE)_get_osfhandle(fd); |
| 52 | |
| 53 | /* get current position, ftruncate do not change position */ |
| 54 | li.HighPart = 0; |
| 55 | li.LowPart = SetFilePointer (h, 0, &li.HighPart, FILE_CURRENT); |
| 56 | if (li.LowPart == 0xffffffffUL && GetLastError() != NO_ERROR) |
| 57 | return -1; |
| 58 | |
| 59 | high = length >> 32; |
| 60 | if (!SetFilePointer(h, (DWORD) length, &high, FILE_BEGIN)) |
| 61 | return -1; |
| 62 | res = SetEndOfFile(h); |
| 63 | |
| 64 | /* back to old position */ |
| 65 | SetFilePointer(h, li.LowPart, &li.HighPart, FILE_BEGIN); |
| 66 | return res ? 0 : -1; |
| 67 | } |
| 68 | |
| 69 | static int set_sparse(int fd) |
| 70 | { |
| 71 | DWORD returned; |
| 72 | return (int) DeviceIoControl((HANDLE)_get_osfhandle(fd), FSCTL_SET_SPARSE, |
| 73 | NULL, 0, NULL, 0, &returned, NULL); |
| 74 | } |
| 75 | |
| 76 | static int raw_open(BlockDriverState *bs, const char *filename, int flags) |
| 77 | { |
| 78 | BDRVRawState *s = bs->opaque; |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 79 | int access_flags; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 80 | DWORD overlapped; |
| 81 | |
| 82 | s->type = FTYPE_FILE; |
| 83 | |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 84 | if (flags & BDRV_O_RDWR) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 85 | access_flags = GENERIC_READ | GENERIC_WRITE; |
| 86 | } else { |
| 87 | access_flags = GENERIC_READ; |
| 88 | } |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 89 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 90 | overlapped = FILE_ATTRIBUTE_NORMAL; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 91 | if ((flags & BDRV_O_NOCACHE)) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 92 | overlapped |= FILE_FLAG_NO_BUFFERING | FILE_FLAG_WRITE_THROUGH; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 93 | else if (!(flags & BDRV_O_CACHE_WB)) |
| 94 | overlapped |= FILE_FLAG_WRITE_THROUGH; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 95 | s->hfile = CreateFile(filename, access_flags, |
| 96 | FILE_SHARE_READ, NULL, |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 97 | OPEN_EXISTING, overlapped, NULL); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 98 | if (s->hfile == INVALID_HANDLE_VALUE) { |
| 99 | int err = GetLastError(); |
| 100 | |
| 101 | if (err == ERROR_ACCESS_DENIED) |
| 102 | return -EACCES; |
| 103 | return -1; |
| 104 | } |
| 105 | return 0; |
| 106 | } |
| 107 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 108 | static int raw_read(BlockDriverState *bs, int64_t sector_num, |
| 109 | uint8_t *buf, int nb_sectors) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 110 | { |
| 111 | BDRVRawState *s = bs->opaque; |
| 112 | OVERLAPPED ov; |
| 113 | DWORD ret_count; |
| 114 | int ret; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 115 | int64_t offset = sector_num * 512; |
| 116 | int count = nb_sectors * 512; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 117 | |
| 118 | memset(&ov, 0, sizeof(ov)); |
| 119 | ov.Offset = offset; |
| 120 | ov.OffsetHigh = offset >> 32; |
| 121 | ret = ReadFile(s->hfile, buf, count, &ret_count, &ov); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 122 | if (!ret) |
| 123 | return ret_count; |
| 124 | if (ret_count == count) |
| 125 | ret_count = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 126 | return ret_count; |
| 127 | } |
| 128 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 129 | static int raw_write(BlockDriverState *bs, int64_t sector_num, |
| 130 | const uint8_t *buf, int nb_sectors) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 131 | { |
| 132 | BDRVRawState *s = bs->opaque; |
| 133 | OVERLAPPED ov; |
| 134 | DWORD ret_count; |
| 135 | int ret; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 136 | int64_t offset = sector_num * 512; |
| 137 | int count = nb_sectors * 512; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 138 | |
| 139 | memset(&ov, 0, sizeof(ov)); |
| 140 | ov.Offset = offset; |
| 141 | ov.OffsetHigh = offset >> 32; |
| 142 | ret = WriteFile(s->hfile, buf, count, &ret_count, &ov); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 143 | if (!ret) |
| 144 | return ret_count; |
| 145 | if (ret_count == count) |
| 146 | ret_count = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 147 | return ret_count; |
| 148 | } |
| 149 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 150 | static void raw_flush(BlockDriverState *bs) |
| 151 | { |
| 152 | BDRVRawState *s = bs->opaque; |
| 153 | FlushFileBuffers(s->hfile); |
| 154 | } |
| 155 | |
| 156 | static void raw_close(BlockDriverState *bs) |
| 157 | { |
| 158 | BDRVRawState *s = bs->opaque; |
| 159 | CloseHandle(s->hfile); |
| 160 | } |
| 161 | |
| 162 | static int raw_truncate(BlockDriverState *bs, int64_t offset) |
| 163 | { |
| 164 | BDRVRawState *s = bs->opaque; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 165 | LONG low, high; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 166 | |
| 167 | low = offset; |
| 168 | high = offset >> 32; |
| 169 | if (!SetFilePointer(s->hfile, low, &high, FILE_BEGIN)) |
| 170 | return -EIO; |
| 171 | if (!SetEndOfFile(s->hfile)) |
| 172 | return -EIO; |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | static int64_t raw_getlength(BlockDriverState *bs) |
| 177 | { |
| 178 | BDRVRawState *s = bs->opaque; |
| 179 | LARGE_INTEGER l; |
| 180 | ULARGE_INTEGER available, total, total_free; |
| 181 | DISK_GEOMETRY_EX dg; |
| 182 | DWORD count; |
| 183 | BOOL status; |
| 184 | |
| 185 | switch(s->type) { |
| 186 | case FTYPE_FILE: |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 187 | l.LowPart = GetFileSize(s->hfile, (PDWORD)&l.HighPart); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 188 | if (l.LowPart == 0xffffffffUL && GetLastError() != NO_ERROR) |
| 189 | return -EIO; |
| 190 | break; |
| 191 | case FTYPE_CD: |
| 192 | if (!GetDiskFreeSpaceEx(s->drive_path, &available, &total, &total_free)) |
| 193 | return -EIO; |
| 194 | l.QuadPart = total.QuadPart; |
| 195 | break; |
| 196 | case FTYPE_HARDDISK: |
| 197 | status = DeviceIoControl(s->hfile, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX, |
| 198 | NULL, 0, &dg, sizeof(dg), &count, NULL); |
| 199 | if (status != 0) { |
| 200 | l = dg.DiskSize; |
| 201 | } |
| 202 | break; |
| 203 | default: |
| 204 | return -EIO; |
| 205 | } |
| 206 | return l.QuadPart; |
| 207 | } |
| 208 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 209 | static int raw_create(const char *filename, QEMUOptionParameter *options) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 210 | { |
| 211 | int fd; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 212 | int64_t total_size = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 213 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 214 | /* Read out options */ |
| 215 | while (options && options->name) { |
| 216 | if (!strcmp(options->name, BLOCK_OPT_SIZE)) { |
| 217 | total_size = options->value.n / 512; |
| 218 | } |
| 219 | options++; |
| 220 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 221 | |
| 222 | fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, |
| 223 | 0644); |
| 224 | if (fd < 0) |
| 225 | return -EIO; |
| 226 | set_sparse(fd); |
| 227 | ftruncate(fd, total_size * 512); |
| 228 | close(fd); |
| 229 | return 0; |
| 230 | } |
| 231 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 232 | static QEMUOptionParameter raw_create_options[] = { |
| 233 | { |
| 234 | .name = BLOCK_OPT_SIZE, |
| 235 | .type = OPT_SIZE, |
| 236 | .help = "Virtual disk size" |
| 237 | }, |
| 238 | { NULL } |
| 239 | }; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 240 | |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 241 | static BlockDriver bdrv_file = { |
| 242 | .format_name = "file", |
| 243 | .protocol_name = "file", |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 244 | .instance_size = sizeof(BDRVRawState), |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 245 | .bdrv_file_open = raw_open, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 246 | .bdrv_close = raw_close, |
| 247 | .bdrv_create = raw_create, |
| 248 | .bdrv_flush = raw_flush, |
| 249 | .bdrv_read = raw_read, |
| 250 | .bdrv_write = raw_write, |
| 251 | .bdrv_truncate = raw_truncate, |
| 252 | .bdrv_getlength = raw_getlength, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 253 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 254 | .create_options = raw_create_options, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 255 | }; |
| 256 | |
| 257 | /***********************************************/ |
| 258 | /* host device */ |
| 259 | |
| 260 | static int find_cdrom(char *cdrom_name, int cdrom_name_size) |
| 261 | { |
| 262 | char drives[256], *pdrv = drives; |
| 263 | UINT type; |
| 264 | |
| 265 | memset(drives, 0, sizeof(drives)); |
| 266 | GetLogicalDriveStrings(sizeof(drives), drives); |
| 267 | while(pdrv[0] != '\0') { |
| 268 | type = GetDriveType(pdrv); |
| 269 | switch(type) { |
| 270 | case DRIVE_CDROM: |
| 271 | snprintf(cdrom_name, cdrom_name_size, "\\\\.\\%c:", pdrv[0]); |
| 272 | return 0; |
| 273 | break; |
| 274 | } |
| 275 | pdrv += lstrlen(pdrv) + 1; |
| 276 | } |
| 277 | return -1; |
| 278 | } |
| 279 | |
| 280 | static int find_device_type(BlockDriverState *bs, const char *filename) |
| 281 | { |
| 282 | BDRVRawState *s = bs->opaque; |
| 283 | UINT type; |
| 284 | const char *p; |
| 285 | |
| 286 | if (strstart(filename, "\\\\.\\", &p) || |
| 287 | strstart(filename, "//./", &p)) { |
| 288 | if (stristart(p, "PhysicalDrive", NULL)) |
| 289 | return FTYPE_HARDDISK; |
| 290 | snprintf(s->drive_path, sizeof(s->drive_path), "%c:\\", p[0]); |
| 291 | type = GetDriveType(s->drive_path); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 292 | switch (type) { |
| 293 | case DRIVE_REMOVABLE: |
| 294 | case DRIVE_FIXED: |
| 295 | return FTYPE_HARDDISK; |
| 296 | case DRIVE_CDROM: |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 297 | return FTYPE_CD; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 298 | default: |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 299 | return FTYPE_FILE; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 300 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 301 | } else { |
| 302 | return FTYPE_FILE; |
| 303 | } |
| 304 | } |
| 305 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 306 | static int hdev_probe_device(const char *filename) |
| 307 | { |
| 308 | if (strstart(filename, "/dev/cdrom", NULL)) |
| 309 | return 100; |
| 310 | if (is_windows_drive(filename)) |
| 311 | return 100; |
| 312 | return 0; |
| 313 | } |
| 314 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 315 | static int hdev_open(BlockDriverState *bs, const char *filename, int flags) |
| 316 | { |
| 317 | BDRVRawState *s = bs->opaque; |
| 318 | int access_flags, create_flags; |
| 319 | DWORD overlapped; |
| 320 | char device_name[64]; |
| 321 | |
| 322 | if (strstart(filename, "/dev/cdrom", NULL)) { |
| 323 | if (find_cdrom(device_name, sizeof(device_name)) < 0) |
| 324 | return -ENOENT; |
| 325 | filename = device_name; |
| 326 | } else { |
| 327 | /* transform drive letters into device name */ |
| 328 | if (((filename[0] >= 'a' && filename[0] <= 'z') || |
| 329 | (filename[0] >= 'A' && filename[0] <= 'Z')) && |
| 330 | filename[1] == ':' && filename[2] == '\0') { |
| 331 | snprintf(device_name, sizeof(device_name), "\\\\.\\%c:", filename[0]); |
| 332 | filename = device_name; |
| 333 | } |
| 334 | } |
| 335 | s->type = find_device_type(bs, filename); |
| 336 | |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 337 | if (flags & BDRV_O_RDWR) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 338 | access_flags = GENERIC_READ | GENERIC_WRITE; |
| 339 | } else { |
| 340 | access_flags = GENERIC_READ; |
| 341 | } |
| 342 | create_flags = OPEN_EXISTING; |
| 343 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 344 | overlapped = FILE_ATTRIBUTE_NORMAL; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 345 | if ((flags & BDRV_O_NOCACHE)) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 346 | overlapped |= FILE_FLAG_NO_BUFFERING | FILE_FLAG_WRITE_THROUGH; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 347 | else if (!(flags & BDRV_O_CACHE_WB)) |
| 348 | overlapped |= FILE_FLAG_WRITE_THROUGH; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 349 | s->hfile = CreateFile(filename, access_flags, |
| 350 | FILE_SHARE_READ, NULL, |
| 351 | create_flags, overlapped, NULL); |
| 352 | if (s->hfile == INVALID_HANDLE_VALUE) { |
| 353 | int err = GetLastError(); |
| 354 | |
| 355 | if (err == ERROR_ACCESS_DENIED) |
| 356 | return -EACCES; |
| 357 | return -1; |
| 358 | } |
| 359 | return 0; |
| 360 | } |
| 361 | |
| 362 | #if 0 |
| 363 | /***********************************************/ |
| 364 | /* removable device additional commands */ |
| 365 | |
| 366 | static int raw_is_inserted(BlockDriverState *bs) |
| 367 | { |
| 368 | return 1; |
| 369 | } |
| 370 | |
| 371 | static int raw_media_changed(BlockDriverState *bs) |
| 372 | { |
| 373 | return -ENOTSUP; |
| 374 | } |
| 375 | |
| 376 | static int raw_eject(BlockDriverState *bs, int eject_flag) |
| 377 | { |
| 378 | DWORD ret_count; |
| 379 | |
| 380 | if (s->type == FTYPE_FILE) |
| 381 | return -ENOTSUP; |
| 382 | if (eject_flag) { |
| 383 | DeviceIoControl(s->hfile, IOCTL_STORAGE_EJECT_MEDIA, |
| 384 | NULL, 0, NULL, 0, &lpBytesReturned, NULL); |
| 385 | } else { |
| 386 | DeviceIoControl(s->hfile, IOCTL_STORAGE_LOAD_MEDIA, |
| 387 | NULL, 0, NULL, 0, &lpBytesReturned, NULL); |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | static int raw_set_locked(BlockDriverState *bs, int locked) |
| 392 | { |
| 393 | return -ENOTSUP; |
| 394 | } |
| 395 | #endif |
| 396 | |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 397 | static int hdev_has_zero_init(BlockDriverState *bs) |
| 398 | { |
| 399 | return 0; |
| 400 | } |
| 401 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 402 | static BlockDriver bdrv_host_device = { |
| 403 | .format_name = "host_device", |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 404 | .protocol_name = "host_device", |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 405 | .instance_size = sizeof(BDRVRawState), |
| 406 | .bdrv_probe_device = hdev_probe_device, |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 407 | .bdrv_file_open = hdev_open, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 408 | .bdrv_close = raw_close, |
| 409 | .bdrv_flush = raw_flush, |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 410 | .bdrv_has_zero_init = hdev_has_zero_init, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 411 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 412 | .bdrv_read = raw_read, |
| 413 | .bdrv_write = raw_write, |
| 414 | .bdrv_getlength = raw_getlength, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 415 | }; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 416 | |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 417 | static void bdrv_file_init(void) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 418 | { |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 419 | bdrv_register(&bdrv_file); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 420 | bdrv_register(&bdrv_host_device); |
| 421 | } |
| 422 | |
David 'Digit' Turner | cb42a1b | 2010-12-23 02:54:08 +0100 | [diff] [blame] | 423 | block_init(bdrv_file_init); |