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_IDE must be zero, because we want MachineClass member
  23     * block_default_type to default-initialize to IF_IDE
  24     */
  25    IF_IDE = 0,
  26    IF_NONE,
  27    IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
  28    IF_COUNT
  29} BlockInterfaceType;
  30
  31struct DriveInfo {
  32    const char *devaddr;
  33    BlockInterfaceType type;
  34    int bus;
  35    int unit;
  36    int auto_del;               /* see blockdev_mark_auto_del() */
  37    bool is_default;            /* Added by default_drive() ?  */
  38    int media_cd;
  39    int cyls, heads, secs, trans;
  40    QemuOpts *opts;
  41    char *serial;
  42    QTAILQ_ENTRY(DriveInfo) next;
  43};
  44
  45/* Xilinx: Make this global so blockdev and FDT generic can
  46 * access it
  47 */
  48extern int next_block_unit[IF_COUNT];
  49
  50DriveInfo *blk_legacy_dinfo(BlockBackend *blk);
  51DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo);
  52BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo);
  53
  54void override_max_devs(BlockInterfaceType type, int max_devs);
  55
  56DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
  57bool drive_check_orphaned(void);
  58DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
  59int drive_get_max_bus(BlockInterfaceType type);
  60int drive_get_max_devs(BlockInterfaceType type);
  61DriveInfo *drive_get_next(BlockInterfaceType type);
  62
  63QemuOpts *drive_def(const char *optstr);
  64QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
  65                    const char *optstr);
  66DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type);
  67
  68/* device-hotplug */
  69
  70void hmp_commit(Monitor *mon, const QDict *qdict);
  71void hmp_drive_del(Monitor *mon, const QDict *qdict);
  72#endif
  73