File:  [Qemu by Fabrice Bellard] / qemu / blockdev.h
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 18:55:42 2018 UTC (3 years, 1 month ago) by root
Branches: qemu, MAIN
CVS tags: qemu1001, qemu1000, qemu0151, HEAD
qemu 0.15.1

    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.h"
   14: #include "qemu-queue.h"
   15: 
   16: void blockdev_mark_auto_del(BlockDriverState *bs);
   17: void blockdev_auto_del(BlockDriverState *bs);
   18: 
   19: #define BLOCK_SERIAL_STRLEN 20
   20: 
   21: typedef enum {
   22:     IF_DEFAULT = -1,            /* for use with drive_add() only */
   23:     IF_NONE,
   24:     IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
   25:     IF_COUNT
   26: } BlockInterfaceType;
   27: 
   28: struct DriveInfo {
   29:     BlockDriverState *bdrv;
   30:     char *id;
   31:     const char *devaddr;
   32:     BlockInterfaceType type;
   33:     int bus;
   34:     int unit;
   35:     int auto_del;               /* see blockdev_mark_auto_del() */
   36:     int media_cd;
   37:     QemuOpts *opts;
   38:     char serial[BLOCK_SERIAL_STRLEN + 1];
   39:     QTAILQ_ENTRY(DriveInfo) next;
   40:     int refcount;
   41: };
   42: 
   43: DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
   44: DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
   45: int drive_get_max_bus(BlockInterfaceType type);
   46: DriveInfo *drive_get_next(BlockInterfaceType type);
   47: void drive_get_ref(DriveInfo *dinfo);
   48: void drive_put_ref(DriveInfo *dinfo);
   49: DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);
   50: 
   51: QemuOpts *drive_def(const char *optstr);
   52: QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
   53:                     const char *optstr);
   54: DriveInfo *drive_init(QemuOpts *arg, int default_to_scsi);
   55: 
   56: /* device-hotplug */
   57: 
   58: DriveInfo *add_init_drive(const char *opts);
   59: 
   60: void do_commit(Monitor *mon, const QDict *qdict);
   61: int do_eject(Monitor *mon, const QDict *qdict, QObject **ret_data);
   62: int do_block_set_passwd(Monitor *mon, const QDict *qdict, QObject **ret_data);
   63: int do_change_block(Monitor *mon, const char *device,
   64:                     const char *filename, const char *fmt);
   65: int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
   66: int do_snapshot_blkdev(Monitor *mon, const QDict *qdict, QObject **ret_data);
   67: int do_block_resize(Monitor *mon, const QDict *qdict, QObject **ret_data);
   68: 
   69: #endif

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