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11#ifndef VHOST_BACKEND_H
12#define VHOST_BACKEND_H
13
14#include "exec/memory.h"
15
16typedef enum VhostBackendType {
17 VHOST_BACKEND_TYPE_NONE = 0,
18 VHOST_BACKEND_TYPE_KERNEL = 1,
19 VHOST_BACKEND_TYPE_USER = 2,
20 VHOST_BACKEND_TYPE_MAX = 3,
21} VhostBackendType;
22
23typedef enum VhostSetConfigType {
24 VHOST_SET_CONFIG_TYPE_MASTER = 0,
25 VHOST_SET_CONFIG_TYPE_MIGRATION = 1,
26} VhostSetConfigType;
27
28struct vhost_inflight;
29struct vhost_dev;
30struct vhost_log;
31struct vhost_memory;
32struct vhost_vring_file;
33struct vhost_vring_state;
34struct vhost_vring_addr;
35struct vhost_scsi_target;
36struct vhost_iotlb_msg;
37
38typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque);
39typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev);
40typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev);
41
42typedef int (*vhost_net_set_backend_op)(struct vhost_dev *dev,
43 struct vhost_vring_file *file);
44typedef int (*vhost_net_set_mtu_op)(struct vhost_dev *dev, uint16_t mtu);
45typedef int (*vhost_scsi_set_endpoint_op)(struct vhost_dev *dev,
46 struct vhost_scsi_target *target);
47typedef int (*vhost_scsi_clear_endpoint_op)(struct vhost_dev *dev,
48 struct vhost_scsi_target *target);
49typedef int (*vhost_scsi_get_abi_version_op)(struct vhost_dev *dev,
50 int *version);
51typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base,
52 struct vhost_log *log);
53typedef int (*vhost_set_mem_table_op)(struct vhost_dev *dev,
54 struct vhost_memory *mem);
55typedef int (*vhost_set_vring_addr_op)(struct vhost_dev *dev,
56 struct vhost_vring_addr *addr);
57typedef int (*vhost_set_vring_endian_op)(struct vhost_dev *dev,
58 struct vhost_vring_state *ring);
59typedef int (*vhost_set_vring_num_op)(struct vhost_dev *dev,
60 struct vhost_vring_state *ring);
61typedef int (*vhost_set_vring_base_op)(struct vhost_dev *dev,
62 struct vhost_vring_state *ring);
63typedef int (*vhost_get_vring_base_op)(struct vhost_dev *dev,
64 struct vhost_vring_state *ring);
65typedef int (*vhost_set_vring_kick_op)(struct vhost_dev *dev,
66 struct vhost_vring_file *file);
67typedef int (*vhost_set_vring_call_op)(struct vhost_dev *dev,
68 struct vhost_vring_file *file);
69typedef int (*vhost_set_vring_busyloop_timeout_op)(struct vhost_dev *dev,
70 struct vhost_vring_state *r);
71typedef int (*vhost_set_features_op)(struct vhost_dev *dev,
72 uint64_t features);
73typedef int (*vhost_get_features_op)(struct vhost_dev *dev,
74 uint64_t *features);
75typedef int (*vhost_set_owner_op)(struct vhost_dev *dev);
76typedef int (*vhost_reset_device_op)(struct vhost_dev *dev);
77typedef int (*vhost_get_vq_index_op)(struct vhost_dev *dev, int idx);
78typedef int (*vhost_set_vring_enable_op)(struct vhost_dev *dev,
79 int enable);
80typedef bool (*vhost_requires_shm_log_op)(struct vhost_dev *dev);
81typedef int (*vhost_migration_done_op)(struct vhost_dev *dev,
82 char *mac_addr);
83typedef bool (*vhost_backend_can_merge_op)(struct vhost_dev *dev,
84 uint64_t start1, uint64_t size1,
85 uint64_t start2, uint64_t size2);
86typedef int (*vhost_vsock_set_guest_cid_op)(struct vhost_dev *dev,
87 uint64_t guest_cid);
88typedef int (*vhost_vsock_set_running_op)(struct vhost_dev *dev, int start);
89typedef void (*vhost_set_iotlb_callback_op)(struct vhost_dev *dev,
90 int enabled);
91typedef int (*vhost_send_device_iotlb_msg_op)(struct vhost_dev *dev,
92 struct vhost_iotlb_msg *imsg);
93typedef int (*vhost_set_config_op)(struct vhost_dev *dev, const uint8_t *data,
94 uint32_t offset, uint32_t size,
95 uint32_t flags);
96typedef int (*vhost_get_config_op)(struct vhost_dev *dev, uint8_t *config,
97 uint32_t config_len);
98
99typedef int (*vhost_crypto_create_session_op)(struct vhost_dev *dev,
100 void *session_info,
101 uint64_t *session_id);
102typedef int (*vhost_crypto_close_session_op)(struct vhost_dev *dev,
103 uint64_t session_id);
104
105typedef bool (*vhost_backend_mem_section_filter_op)(struct vhost_dev *dev,
106 MemoryRegionSection *section);
107
108typedef int (*vhost_get_inflight_fd_op)(struct vhost_dev *dev,
109 uint16_t queue_size,
110 struct vhost_inflight *inflight);
111
112typedef int (*vhost_set_inflight_fd_op)(struct vhost_dev *dev,
113 struct vhost_inflight *inflight);
114
115typedef struct VhostOps {
116 VhostBackendType backend_type;
117 vhost_backend_init vhost_backend_init;
118 vhost_backend_cleanup vhost_backend_cleanup;
119 vhost_backend_memslots_limit vhost_backend_memslots_limit;
120 vhost_net_set_backend_op vhost_net_set_backend;
121 vhost_net_set_mtu_op vhost_net_set_mtu;
122 vhost_scsi_set_endpoint_op vhost_scsi_set_endpoint;
123 vhost_scsi_clear_endpoint_op vhost_scsi_clear_endpoint;
124 vhost_scsi_get_abi_version_op vhost_scsi_get_abi_version;
125 vhost_set_log_base_op vhost_set_log_base;
126 vhost_set_mem_table_op vhost_set_mem_table;
127 vhost_set_vring_addr_op vhost_set_vring_addr;
128 vhost_set_vring_endian_op vhost_set_vring_endian;
129 vhost_set_vring_num_op vhost_set_vring_num;
130 vhost_set_vring_base_op vhost_set_vring_base;
131 vhost_get_vring_base_op vhost_get_vring_base;
132 vhost_set_vring_kick_op vhost_set_vring_kick;
133 vhost_set_vring_call_op vhost_set_vring_call;
134 vhost_set_vring_busyloop_timeout_op vhost_set_vring_busyloop_timeout;
135 vhost_set_features_op vhost_set_features;
136 vhost_get_features_op vhost_get_features;
137 vhost_set_owner_op vhost_set_owner;
138 vhost_reset_device_op vhost_reset_device;
139 vhost_get_vq_index_op vhost_get_vq_index;
140 vhost_set_vring_enable_op vhost_set_vring_enable;
141 vhost_requires_shm_log_op vhost_requires_shm_log;
142 vhost_migration_done_op vhost_migration_done;
143 vhost_backend_can_merge_op vhost_backend_can_merge;
144 vhost_vsock_set_guest_cid_op vhost_vsock_set_guest_cid;
145 vhost_vsock_set_running_op vhost_vsock_set_running;
146 vhost_set_iotlb_callback_op vhost_set_iotlb_callback;
147 vhost_send_device_iotlb_msg_op vhost_send_device_iotlb_msg;
148 vhost_get_config_op vhost_get_config;
149 vhost_set_config_op vhost_set_config;
150 vhost_crypto_create_session_op vhost_crypto_create_session;
151 vhost_crypto_close_session_op vhost_crypto_close_session;
152 vhost_backend_mem_section_filter_op vhost_backend_mem_section_filter;
153 vhost_get_inflight_fd_op vhost_get_inflight_fd;
154 vhost_set_inflight_fd_op vhost_set_inflight_fd;
155} VhostOps;
156
157extern const VhostOps user_ops;
158
159int vhost_set_backend_type(struct vhost_dev *dev,
160 VhostBackendType backend_type);
161
162int vhost_backend_update_device_iotlb(struct vhost_dev *dev,
163 uint64_t iova, uint64_t uaddr,
164 uint64_t len,
165 IOMMUAccessFlags perm);
166
167int vhost_backend_invalidate_device_iotlb(struct vhost_dev *dev,
168 uint64_t iova, uint64_t len);
169
170int vhost_backend_handle_iotlb_msg(struct vhost_dev *dev,
171 struct vhost_iotlb_msg *imsg);
172
173int vhost_user_gpu_set_socket(struct vhost_dev *dev, int fd);
174
175#endif
176
