1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/*
* vhost-backend
*
* Copyright (c) 2013 Virtual Open Systems Sarl.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#ifndef VHOST_BACKEND_H_
#define VHOST_BACKEND_H_
typedef enum VhostBackendType {
VHOST_BACKEND_TYPE_NONE = 0,
VHOST_BACKEND_TYPE_KERNEL = 1,
VHOST_BACKEND_TYPE_USER = 2,
VHOST_BACKEND_TYPE_MAX = 3,
} VhostBackendType;
struct vhost_dev;
struct vhost_log;
struct vhost_memory;
struct vhost_vring_file;
struct vhost_vring_state;
struct vhost_vring_addr;
struct vhost_scsi_target;
typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque);
typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev);
typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev);
typedef int (*vhost_net_set_backend_op)(struct vhost_dev *dev,
struct vhost_vring_file *file);
typedef int (*vhost_scsi_set_endpoint_op)(struct vhost_dev *dev,
struct vhost_scsi_target *target);
typedef int (*vhost_scsi_clear_endpoint_op)(struct vhost_dev *dev,
struct vhost_scsi_target *target);
typedef int (*vhost_scsi_get_abi_version_op)(struct vhost_dev *dev,
int *version);
typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base,
struct vhost_log *log);
typedef int (*vhost_set_mem_table_op)(struct vhost_dev *dev,
struct vhost_memory *mem);
typedef int (*vhost_set_vring_addr_op)(struct vhost_dev *dev,
struct vhost_vring_addr *addr);
typedef int (*vhost_set_vring_endian_op)(struct vhost_dev *dev,
struct vhost_vring_state *ring);
typedef int (*vhost_set_vring_num_op)(struct vhost_dev *dev,
struct vhost_vring_state *ring);
typedef int (*vhost_set_vring_base_op)(struct vhost_dev *dev,
struct vhost_vring_state *ring);
typedef int (*vhost_get_vring_base_op)(struct vhost_dev *dev,
struct vhost_vring_state *ring);
typedef int (*vhost_set_vring_kick_op)(struct vhost_dev *dev,
struct vhost_vring_file *file);
typedef int (*vhost_set_vring_call_op)(struct vhost_dev *dev,
struct vhost_vring_file *file);
typedef int (*vhost_set_vring_busyloop_timeout_op)(struct vhost_dev *dev,
struct vhost_vring_state *r);
typedef int (*vhost_set_features_op)(struct vhost_dev *dev,
uint64_t features);
typedef int (*vhost_get_features_op)(struct vhost_dev *dev,
uint64_t *features);
typedef int (*vhost_set_owner_op)(struct vhost_dev *dev);
typedef int (*vhost_reset_device_op)(struct vhost_dev *dev);
typedef int (*vhost_get_vq_index_op)(struct vhost_dev *dev, int idx);
typedef int (*vhost_set_vring_enable_op)(struct vhost_dev *dev,
int enable);
typedef bool (*vhost_requires_shm_log_op)(struct vhost_dev *dev);
typedef int (*vhost_migration_done_op)(struct vhost_dev *dev,
char *mac_addr);
typedef bool (*vhost_backend_can_merge_op)(struct vhost_dev *dev,
uint64_t start1, uint64_t size1,
uint64_t start2, uint64_t size2);
typedef struct VhostOps {
VhostBackendType backend_type;
vhost_backend_init vhost_backend_init;
vhost_backend_cleanup vhost_backend_cleanup;
vhost_backend_memslots_limit vhost_backend_memslots_limit;
vhost_net_set_backend_op vhost_net_set_backend;
vhost_scsi_set_endpoint_op vhost_scsi_set_endpoint;
vhost_scsi_clear_endpoint_op vhost_scsi_clear_endpoint;
vhost_scsi_get_abi_version_op vhost_scsi_get_abi_version;
vhost_set_log_base_op vhost_set_log_base;
vhost_set_mem_table_op vhost_set_mem_table;
vhost_set_vring_addr_op vhost_set_vring_addr;
vhost_set_vring_endian_op vhost_set_vring_endian;
vhost_set_vring_num_op vhost_set_vring_num;
vhost_set_vring_base_op vhost_set_vring_base;
vhost_get_vring_base_op vhost_get_vring_base;
vhost_set_vring_kick_op vhost_set_vring_kick;
vhost_set_vring_call_op vhost_set_vring_call;
vhost_set_vring_busyloop_timeout_op vhost_set_vring_busyloop_timeout;
vhost_set_features_op vhost_set_features;
vhost_get_features_op vhost_get_features;
vhost_set_owner_op vhost_set_owner;
vhost_reset_device_op vhost_reset_device;
vhost_get_vq_index_op vhost_get_vq_index;
vhost_set_vring_enable_op vhost_set_vring_enable;
vhost_requires_shm_log_op vhost_requires_shm_log;
vhost_migration_done_op vhost_migration_done;
vhost_backend_can_merge_op vhost_backend_can_merge;
} VhostOps;
extern const VhostOps user_ops;
int vhost_set_backend_type(struct vhost_dev *dev,
VhostBackendType backend_type);
#endif /* VHOST_BACKEND_H_ */
|
