| 1 | /* |
| 2 | * QEMU host block devices |
| 3 | * |
| 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2 or |
| 7 | * later. See the COPYING file in the top-level directory. |
| 8 | */ |
| 9 | |
| 10 | #ifndef BLOCKDEV_H |
| 11 | #define BLOCKDEV_H |
| 12 | |
| 13 | #include "block/block.h" |
| 14 | #include "qemu/queue.h" |
| 15 | |
| 16 | typedef enum { |
| 17 | IF_DEFAULT = -1, /* for use with drive_add() only */ |
| 18 | /* |
| 19 | * IF_NONE must be zero, because we want MachineClass member |
| 20 | * block_default_type to default-initialize to IF_NONE |
| 21 | */ |
| 22 | IF_NONE = 0, |
| 23 | IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN, |
| 24 | IF_COUNT |
| 25 | } BlockInterfaceType; |
| 26 | |
| 27 | struct DriveInfo { |
| 28 | BlockInterfaceType type; |
| 29 | int bus; |
| 30 | int unit; |
| 31 | int auto_del; /* see blockdev_mark_auto_del() */ |
| 32 | bool is_default; /* Added by default_drive() ? */ |
| 33 | int media_cd; |
| 34 | QemuOpts *opts; |
| 35 | QTAILQ_ENTRY(DriveInfo) next; |
| 36 | }; |
| 37 | |
| 38 | /* |
| 39 | * Global state (GS) API. These functions run under the BQL. |
| 40 | * |
| 41 | * See include/block/block-global-state.h for more information about |
| 42 | * the GS API. |
| 43 | */ |
| 44 | |
| 45 | void blockdev_mark_auto_del(BlockBackend *blk); |
| 46 | void blockdev_auto_del(BlockBackend *blk); |
| 47 | |
| 48 | DriveInfo *blk_legacy_dinfo(BlockBackend *blk); |
| 49 | DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo); |
| 50 | BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo); |
| 51 | |
| 52 | void override_max_devs(BlockInterfaceType type, int max_devs); |
| 53 | |
| 54 | DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit); |
| 55 | void drive_check_orphaned(void); |
| 56 | DriveInfo *drive_get_by_index(BlockInterfaceType type, int index); |
| 57 | int drive_get_max_bus(BlockInterfaceType type); |
| 58 | |
| 59 | QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file, |
| 60 | const char *optstr); |
| 61 | DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type, |
| 62 | Error **errp); |
| 63 | |
| 64 | #endif |