LXR qemu/include/sysemu/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/block.h"
  14#include "qapi/error.h"
  15#include "qemu/queue.h"
  16
  17void blockdev_mark_auto_del(BlockDriverState *bs);
  18void blockdev_auto_del(BlockDriverState *bs);
  19
  20typedef enum {
  21    IF_DEFAULT = -1,            /* for use with drive_add() only */
  22    /*
  23     * IF_IDE must be zero, because we want QEMUMachine member
  24     * block_default_type to default-initialize to IF_IDE
  25     */
  26    IF_IDE = 0,
  27    IF_NONE,
  28    IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
  29    IF_COUNT
  30} BlockInterfaceType;
  31
  32struct DriveInfo {
  33    BlockDriverState *bdrv;
  34    char *id;
  35    const char *devaddr;
  36    BlockInterfaceType type;
  37    int bus;
  38    int unit;
  39    int auto_del;               /* see blockdev_mark_auto_del() */
  40    int media_cd;
  41    int cyls, heads, secs, trans;
  42    QemuOpts *opts;
  43    const char *serial;
  44    QTAILQ_ENTRY(DriveInfo) next;
  45    int refcount;
  46};
  47
  48DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
  49DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
  50int drive_get_max_bus(BlockInterfaceType type);
  51DriveInfo *drive_get_next(BlockInterfaceType type);
  52void drive_get_ref(DriveInfo *dinfo);
  53void drive_put_ref(DriveInfo *dinfo);
  54DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);
  55
  56QemuOpts *drive_def(const char *optstr);
  57QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
  58                    const char *optstr);
  59DriveInfo *drive_init(QemuOpts *arg, BlockInterfaceType block_default_type);
  60
  61/* device-hotplug */
  62
  63DriveInfo *add_init_drive(const char *opts);
  64
  65void qmp_change_blockdev(const char *device, const char *filename,
  66                         bool has_format, const char *format, Error **errp);
  67void do_commit(Monitor *mon, const QDict *qdict);
  68int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
  69#endif
  70