18b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/* 28b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * Block driver for the various disk image formats used by Bochs 38b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * Currently only for "growing" type in read-only mode 48b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 58b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * Copyright (c) 2005 Alex Beregszaszi 68b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 78b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * Permission is hereby granted, free of charge, to any person obtaining a copy 88b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * of this software and associated documentation files (the "Software"), to deal 98b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * in the Software without restriction, including without limitation the rights 108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * copies of the Software, and to permit persons to whom the Software is 128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * furnished to do so, subject to the following conditions: 138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * The above copyright notice and this permission notice shall be included in 158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * all copies or substantial portions of the Software. 168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * 178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 198b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project * THE SOFTWARE. 248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project */ 258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include "qemu-common.h" 268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#include "block_int.h" 275d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner#include "module.h" 288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project/**************************************************************/ 308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define HEADER_MAGIC "Bochs Virtual HD Image" 328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define HEADER_VERSION 0x00020000 338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define HEADER_V1 0x00010000 348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define HEADER_SIZE 512 358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define REDOLOG_TYPE "Redolog" 378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project#define GROWING_TYPE "Growing" 388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project// not allocated: 0xffffffff 408b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 418b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project// always little-endian 428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstruct bochs_header_v1 { 438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char magic[32]; // "Bochs Virtual HD Image" 448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char type[16]; // "Redolog" 458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char subtype[16]; // "Undoable" / "Volatile" / "Growing" 468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t version; 478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t header; // size of header 488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project union { 508b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct { 518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t catalog; // num of entries 528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t bitmap; // bitmap size 538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t extent; // extent size 548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint64_t disk; // disk size 558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char padding[HEADER_SIZE - 64 - 8 - 20]; 568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } redolog; 578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char padding[HEADER_SIZE - 64 - 8]; 588b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } extra; 598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project}; 608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project// always little-endian 628b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstruct bochs_header { 638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char magic[32]; // "Bochs Virtual HD Image" 648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char type[16]; // "Redolog" 658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char subtype[16]; // "Undoable" / "Volatile" / "Growing" 668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t version; 678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t header; // size of header 688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 698b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project union { 708b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct { 718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t catalog; // num of entries 728b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t bitmap; // bitmap size 738b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t extent; // extent size 748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t reserved; // for ??? 758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint64_t disk; // disk size 768b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char padding[HEADER_SIZE - 64 - 8 - 24]; 778b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } redolog; 788b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char padding[HEADER_SIZE - 64 - 8]; 798b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } extra; 808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project}; 818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 828b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projecttypedef struct BDRVBochsState { 838b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint32_t *catalog_bitmap; 848b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int catalog_size; 858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 868b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int data_offset; 878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int bitmap_blocks; 898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int extent_blocks; 908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int extent_size; 918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} BDRVBochsState; 928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic int bochs_probe(const uint8_t *buf, int buf_size, const char *filename) 948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 958b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project const struct bochs_header *bochs = (const void *)buf; 968b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 978b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (buf_size < HEADER_SIZE) 988b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 0; 998b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1008b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (!strcmp(bochs->magic, HEADER_MAGIC) && 1018b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !strcmp(bochs->type, REDOLOG_TYPE) && 1028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project !strcmp(bochs->subtype, GROWING_TYPE) && 1038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ((le32_to_cpu(bochs->version) == HEADER_VERSION) || 1048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project (le32_to_cpu(bochs->version) == HEADER_V1))) 1058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 100; 1068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 0; 1088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 1098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 110cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turnerstatic int bochs_open(BlockDriverState *bs, int flags) 1118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 1128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project BDRVBochsState *s = bs->opaque; 113cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner int i; 1148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct bochs_header bochs; 1158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project struct bochs_header_v1 header_v1; 1168b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1178b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project bs->read_only = 1; // no write support yet 1188b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 119cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner if (bdrv_pread(bs->file, 0, &bochs, sizeof(bochs)) != sizeof(bochs)) { 1208b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project goto fail; 1218b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1228b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (strcmp(bochs.magic, HEADER_MAGIC) || 1248b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project strcmp(bochs.type, REDOLOG_TYPE) || 1258b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project strcmp(bochs.subtype, GROWING_TYPE) || 1268b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project ((le32_to_cpu(bochs.version) != HEADER_VERSION) && 1278b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project (le32_to_cpu(bochs.version) != HEADER_V1))) { 1288b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project goto fail; 1298b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1308b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1318b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project if (le32_to_cpu(bochs.version) == HEADER_V1) { 1328b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project memcpy(&header_v1, &bochs, sizeof(bochs)); 1338b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project bs->total_sectors = le64_to_cpu(header_v1.extra.redolog.disk) / 512; 1348b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } else { 1358b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project bs->total_sectors = le64_to_cpu(bochs.extra.redolog.disk) / 512; 1368b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1378b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1388b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project s->catalog_size = le32_to_cpu(bochs.extra.redolog.catalog); 1398b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project s->catalog_bitmap = qemu_malloc(s->catalog_size * 4); 140cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner if (bdrv_pread(bs->file, le32_to_cpu(bochs.header), s->catalog_bitmap, 141cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner s->catalog_size * 4) != s->catalog_size * 4) 1428b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project goto fail; 1438b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project for (i = 0; i < s->catalog_size; i++) 1448b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project le32_to_cpus(&s->catalog_bitmap[i]); 1458b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1468b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project s->data_offset = le32_to_cpu(bochs.header) + (s->catalog_size * 4); 1478b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1488b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project s->bitmap_blocks = 1 + (le32_to_cpu(bochs.extra.redolog.bitmap) - 1) / 512; 1498b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project s->extent_blocks = 1 + (le32_to_cpu(bochs.extra.redolog.extent) - 1) / 512; 1508b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1518b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project s->extent_size = le32_to_cpu(bochs.extra.redolog.extent); 1528b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1538b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 0; 1548b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project fail: 1558b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return -1; 1568b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 1578b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 158cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turnerstatic int64_t seek_to_sector(BlockDriverState *bs, int64_t sector_num) 1598b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 1608b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project BDRVBochsState *s = bs->opaque; 1618b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int64_t offset = sector_num * 512; 162cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner int64_t extent_index, extent_offset, bitmap_offset; 1638b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project char bitmap_entry; 1648b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1658b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project // seek to sector 1668b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project extent_index = offset / s->extent_size; 1678b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project extent_offset = (offset % s->extent_size) / 512; 1688b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 169cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner if (s->catalog_bitmap[extent_index] == 0xffffffff) { 170cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner return -1; /* not allocated */ 1718b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1728b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1738b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project bitmap_offset = s->data_offset + (512 * s->catalog_bitmap[extent_index] * 1748b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project (s->extent_blocks + s->bitmap_blocks)); 1758b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 176cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner /* read in bitmap for current extent */ 177cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner if (bdrv_pread(bs->file, bitmap_offset + (extent_offset / 8), 178cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner &bitmap_entry, 1) != 1) { 179cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner return -1; 1808b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 1818b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 182cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner if (!((bitmap_entry >> (extent_offset % 8)) & 1)) { 183cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner return -1; /* not allocated */ 184cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner } 1858b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 186cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner return bitmap_offset + (512 * (s->bitmap_blocks + extent_offset)); 1878b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 1888b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1898b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic int bochs_read(BlockDriverState *bs, int64_t sector_num, 1908b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project uint8_t *buf, int nb_sectors) 1918b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 1928b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project int ret; 1938b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 1948b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project while (nb_sectors > 0) { 195cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner int64_t block_offset = seek_to_sector(bs, sector_num); 196cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner if (block_offset >= 0) { 197cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner ret = bdrv_pread(bs->file, block_offset, buf, 512); 198cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner if (ret != 512) { 199cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner return -1; 200cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner } 201cb42a1b1461e02efb034582ac5d8f71534723b92David 'Digit' Turner } else 2028b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project memset(buf, 0, 512); 2038b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project nb_sectors--; 2048b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project sector_num++; 2058b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project buf += 512; 2068b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project } 2078b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project return 0; 2088b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 2098b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 2108b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Projectstatic void bochs_close(BlockDriverState *bs) 2118b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project{ 2128b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project BDRVBochsState *s = bs->opaque; 2138b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project qemu_free(s->catalog_bitmap); 2148b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project} 2158b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project 2165d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turnerstatic BlockDriver bdrv_bochs = { 2175d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner .format_name = "bochs", 2185d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner .instance_size = sizeof(BDRVBochsState), 2195d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner .bdrv_probe = bochs_probe, 2205d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner .bdrv_open = bochs_open, 2215d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner .bdrv_read = bochs_read, 2225d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner .bdrv_close = bochs_close, 2238b23a6c7e1aee255004dd19098d4c2462b61b849The Android Open Source Project}; 2245d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 2255d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turnerstatic void bdrv_bochs_init(void) 2265d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner{ 2275d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner bdrv_register(&bdrv_bochs); 2285d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner} 2295d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turner 2305d8f37ad78fc66901af50c762029a501561f3b23David 'Digit' Turnerblock_init(bdrv_bochs_init); 231