xref: /illumos-kvm-cmd/blockdev.h (revision 68396ea9)
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 
16 void blockdev_mark_auto_del(BlockDriverState *bs);
17 void blockdev_auto_del(BlockDriverState *bs);
18 
19 #define BLOCK_SERIAL_STRLEN 20
20 
21 typedef 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 
28 struct 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 
42 DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
43 DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
44 int drive_get_max_bus(BlockInterfaceType type);
45 DriveInfo *drive_get_next(BlockInterfaceType type);
46 void drive_get_ref(DriveInfo *dinfo);
47 void drive_put_ref(DriveInfo *dinfo);
48 DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);
49 
50 QemuOpts *drive_def(const char *optstr);
51 QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
52                     const char *optstr);
53 DriveInfo *drive_init(QemuOpts *arg, int default_to_scsi);
54 
55 /* device-hotplug */
56 
57 DriveInfo *add_init_drive(const char *opts);
58 
59 void do_commit(Monitor *mon, const QDict *qdict);
60 int do_eject(Monitor *mon, const QDict *qdict, QObject **ret_data);
61 int do_block_set_passwd(Monitor *mon, const QDict *qdict, QObject **ret_data);
62 int do_change_block(Monitor *mon, const char *device,
63                     const char *filename, const char *fmt);
64 int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
65 int do_snapshot_blkdev(Monitor *mon, const QDict *qdict, QObject **ret_data);
66 int do_block_resize(Monitor *mon, const QDict *qdict, QObject **ret_data);
67 
68 extern DriveInfo *extboot_drive;
69 
70 #endif
71