LXR qemu/blockdev.h

   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
  16void blockdev_mark_auto_del(BlockDriverState *bs);
  17void blockdev_auto_del(BlockDriverState *bs);
  18
  19#define BLOCK_SERIAL_STRLEN 20
  20
  21typedef 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
  28struct 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    QemuOpts *opts;
  37    char serial[BLOCK_SERIAL_STRLEN + 1];
  38    QTAILQ_ENTRY(DriveInfo) next;
  39    int refcount;
  40};
  41
  42DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
  43DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
  44int drive_get_max_bus(BlockInterfaceType type);
  45DriveInfo *drive_get_next(BlockInterfaceType type);
  46void drive_get_ref(DriveInfo *dinfo);
  47void drive_put_ref(DriveInfo *dinfo);
  48DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);
  49
  50QemuOpts *drive_def(const char *optstr);
  51QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
  52                    const char *optstr);
  53DriveInfo *drive_init(QemuOpts *arg, int default_to_scsi);
  54
  55/* device-hotplug */
  56
  57DriveInfo *add_init_drive(const char *opts);
  58
  59void do_commit(Monitor *mon, const QDict *qdict);
  60int do_eject(Monitor *mon, const QDict *qdict, QObject **ret_data);
  61int do_block_set_passwd(Monitor *mon, const QDict *qdict, QObject **ret_data);
  62int do_change_block(Monitor *mon, const char *device,
  63                    const char *filename, const char *fmt);
  64int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
  65int do_snapshot_blkdev(Monitor *mon, const QDict *qdict, QObject **ret_data);
  66int do_block_resize(Monitor *mon, const QDict *qdict, QObject **ret_data);
  67
  68#endif
  69