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
  17 void blockdev_mark_auto_del(BlockBackend *blk);
  18 void blockdev_auto_del(BlockBackend *blk);
  19
  20 typedef 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
  32 struct DriveInfo {
  33     const char *devaddr;
  34     BlockInterfaceType type;
  35     int bus;
  36     int unit;
  37     int auto_del;               /* see blockdev_mark_auto_del() */
  38     bool is_default;            /* Added by default_drive() ?  */
  39     int media_cd;
  40     int cyls, heads, secs, trans;
  41     QemuOpts *opts;
  42     char *serial;
  43     QTAILQ_ENTRY(DriveInfo) next;
  44 };
  45
  46 DriveInfo *blk_legacy_dinfo(BlockBackend *blk);
  47 DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo);
  48 BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo);
  49
  50 void override_max_devs(BlockInterfaceType type, int max_devs);
  51
  52 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
  53 bool drive_check_orphaned(void);
  54 DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
  55 int drive_get_max_bus(BlockInterfaceType type);
  56 int drive_get_max_devs(BlockInterfaceType type);
  57 DriveInfo *drive_get_next(BlockInterfaceType type);
  58
  59 QemuOpts *drive_def(const char *optstr);
  60 QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
  61                     const char *optstr);
  62 DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type);
  63
  64 /* device-hotplug */
  65
  66 DriveInfo *add_init_drive(const char *opts);
  67
  68 void qmp_change_blockdev(const char *device, const char *filename,
  69                          const char *format, Error **errp);
  70 void hmp_commit(Monitor *mon, const QDict *qdict);
  71 int hmp_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
  72 #endif