blob: 579af54a155d8879c8e8096c3a473123a4cc63c1 (
plain)
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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
/*
* Copyright (C) 2019 - 2020 Intel Corporation
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef _USFSTL_VHOST_PROTO_H_
#define _USFSTL_VHOST_PROTO_H_
#define MAX_REGIONS 8
// For simplicity, we only support snapshotting a fixed number of queues. Should
// be equal to HWSIM_NUM_VQS.
#define NUM_SNAPSHOT_QUEUES 2
/* these are from the vhost-user spec */
struct vhost_user_msg_hdr {
uint32_t request;
#define VHOST_USER_MSG_FLAGS_VERSION 0x3
#define VHOST_USER_VERSION 1
#define VHOST_USER_MSG_FLAGS_REPLY 0x4
#define VHOST_USER_MSG_FLAGS_NEED_REPLY 0x8
uint32_t flags;
uint32_t size;
};
struct vhost_user_region {
uint64_t guest_phys_addr;
uint64_t size;
uint64_t user_addr;
uint64_t mmap_offset;
};
struct vhost_user_snapshot {
int8_t sleeping[NUM_SNAPSHOT_QUEUES];
};
struct vhost_user_msg {
struct vhost_user_msg_hdr hdr;
union {
#define VHOST_USER_U64_VRING_IDX_MSK 0x7f
#define VHOST_USER_U64_NO_FD 0x80
int8_t i8;
uint64_t u64;
struct {
uint32_t idx, num;
} vring_state;
struct {
uint32_t idx, flags;
uint64_t descriptor;
uint64_t used;
uint64_t avail;
uint64_t log;
} vring_addr;
struct {
uint32_t n_regions;
uint32_t reserved;
struct vhost_user_region regions[MAX_REGIONS];
} mem_regions;
struct {
uint32_t offset;
uint32_t size;
#define VHOST_USER_CFG_SPACE_WRITABLE 0x1
#define VHOST_USER_CFG_SPACE_MIGRATION 0x2
uint32_t flags;
uint8_t payload[0];
} cfg_space;
struct {
uint64_t idx_flags;
uint64_t size;
uint64_t offset;
} vring_area;
struct {
int8_t bool_store;
struct vhost_user_snapshot snapshot;
} __attribute__((packed)) snapshot_response;
struct {
struct vhost_user_snapshot snapshot;
} __attribute__((packed)) restore_request;
} __attribute__((packed)) payload;
};
#define VHOST_USER_GET_FEATURES 1
#define VHOST_USER_SET_FEATURES 2
#define VHOST_USER_SET_OWNER 3
#define VHOST_USER_SET_MEM_TABLE 5
#define VHOST_USER_SET_VRING_NUM 8
#define VHOST_USER_SET_VRING_ADDR 9
#define VHOST_USER_SET_VRING_BASE 10
#define VHOST_USER_SET_VRING_KICK 12
#define VHOST_USER_SET_VRING_CALL 13
#define VHOST_USER_GET_PROTOCOL_FEATURES 15
#define VHOST_USER_SET_VRING_ENABLE 18
#define VHOST_USER_SET_PROTOCOL_FEATURES 16
#define VHOST_USER_SET_SLAVE_REQ_FD 21
#define VHOST_USER_GET_CONFIG 24
#define VHOST_USER_VRING_KICK 35
#define VHOST_USER_GET_SHARED_MEMORY_REGIONS 41
#define VHOST_USER_SLEEP 42
#define VHOST_USER_WAKE 43
#define VHOST_USER_SNAPSHOT 44
#define VHOST_USER_RESTORE 45
#define VHOST_USER_SLAVE_CONFIG_CHANGE_MSG 2
#define VHOST_USER_SLAVE_VRING_CALL 4
#define VHOST_USER_F_PROTOCOL_FEATURES 30
#define VHOST_USER_PROTOCOL_F_MQ 0
#define VHOST_USER_PROTOCOL_F_LOG_SHMFD 1
#define VHOST_USER_PROTOCOL_F_RARP 2
#define VHOST_USER_PROTOCOL_F_REPLY_ACK 3
#define VHOST_USER_PROTOCOL_F_MTU 4
#define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5
#define VHOST_USER_PROTOCOL_F_CROSS_ENDIAN 6
#define VHOST_USER_PROTOCOL_F_CRYPTO_SESSION 7
#define VHOST_USER_PROTOCOL_F_PAGEFAULT 8
#define VHOST_USER_PROTOCOL_F_CONFIG 9
#define VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD 10
#define VHOST_USER_PROTOCOL_F_H_OST_NOTIFIER 11
#define VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD 12
#define VHOST_USER_PROTOCOL_F_RESET_DEVICE 13
#define VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS 14
#endif // _USFSTL_VHOST_PROTO_H_
|
