jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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 bool claimed_by_board;
39 QTAILQ_ENTRY(DriveInfo) next;
40};
41
42DriveInfo *blk_legacy_dinfo(BlockBackend *blk);
43DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo);
44BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo);
45
46void override_max_devs(BlockInterfaceType type, int max_devs);
47
48DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
49void drive_mark_claimed_by_board(void);
50void drive_check_orphaned(void);
51DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
52int drive_get_max_bus(BlockInterfaceType type);
53int drive_get_max_devs(BlockInterfaceType type);
54DriveInfo *drive_get_next(BlockInterfaceType type);
55
56QemuOpts *drive_def(const char *optstr);
57QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
58 const char *optstr);
59DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type,
60 Error **errp);
61
62#endif