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 "qemu/queue.h"
  15
  16void blockdev_mark_auto_del(BlockBackend *blk);
  17void blockdev_auto_del(BlockBackend *blk);
  18
  19typedef enum {
  20    IF_DEFAULT = -1,            /* for use with drive_add() only */
  21    /*
  22     * IF_NONE must be zero, because we want MachineClass member
  23     * block_default_type to default-initialize to IF_NONE
  24     */
  25    IF_NONE = 0,
  26    IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
  27    IF_COUNT
  28} BlockInterfaceType;
  29
  30struct DriveInfo {
  31    BlockInterfaceType type;
  32    int bus;
  33    int unit;
  34    int auto_del;               /* see blockdev_mark_auto_del() */
  35    bool is_default;            /* Added by default_drive() ?  */
  36    int media_cd;
  37    QemuOpts *opts;
  38    QTAILQ_ENTRY(DriveInfo) next;
  39};
  40
  41DriveInfo *blk_legacy_dinfo(BlockBackend *blk);
  42DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo);
  43BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo);
  44
  45void override_max_devs(BlockInterfaceType type, int max_devs);
  46
  47DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
  48void drive_check_orphaned(void);
  49DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
  50int drive_get_max_bus(BlockInterfaceType type);
  51int drive_get_max_devs(BlockInterfaceType type);
  52DriveInfo *drive_get_next(BlockInterfaceType type);
  53
  54QemuOpts *drive_def(const char *optstr);
  55QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
  56                    const char *optstr);
  57DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type,
  58                     Error **errp);
  59
  60/* device-hotplug */
  61
  62void hmp_commit(Monitor *mon, const QDict *qdict);
  63void hmp_drive_del(Monitor *mon, const QDict *qdict);
  64#endif
  65