1
2
3
4
5
6
7
8
9
10
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_VDPA = 3,
21 VHOST_BACKEND_TYPE_MAX = 4,
22} VhostBackendType;
23
24typedef enum VhostSetConfigType {
25 VHOST_SET_CONFIG_TYPE_MASTER = 0,
26 VHOST_SET_CONFIG_TYPE_MIGRATION = 1,
27} VhostSetConfigType;
28
29struct vhost_inflight;
30struct vhost_dev;
31struct vhost_log;
32struct vhost_memory;
33struct vhost_vring_file;
34struct vhost_vring_state;
35struct vhost_vring_addr;
36struct vhost_scsi_target;
37struct vhost_iotlb_msg;
38struct vhost_virtqueue;
39
40typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque,
41 Error **errp);
42typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev);
43typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev);
44
45typedef int (*vhost_net_set_backend_op)(struct vhost_dev *dev,
46 struct vhost_vring_file *file);
47typedef int (*vhost_net_set_mtu_op)(struct vhost_dev *dev, uint16_t mtu);
48typedef int (*vhost_scsi_set_endpoint_op)(struct vhost_dev *dev,
49 struct vhost_scsi_target *target);
50typedef int (*vhost_scsi_clear_endpoint_op)(struct vhost_dev *dev,
51 struct vhost_scsi_target *target);
52typedef int (*vhost_scsi_get_abi_version_op)(struct vhost_dev *dev,
53 int *version);
54typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base,
55 struct vhost_log *log);
56typedef int (*vhost_set_mem_table_op)(struct vhost_dev *dev,
57 struct vhost_memory *mem);
58typedef int (*vhost_set_vring_addr_op)(struct vhost_dev *dev,
59 struct vhost_vring_addr *addr);
60typedef int (*vhost_set_vring_endian_op)(struct vhost_dev *dev,
61 struct vhost_vring_state *ring);
62typedef int (*vhost_set_vring_num_op)(struct vhost_dev *dev,
63 struct vhost_vring_state *ring);
64typedef int (*vhost_set_vring_base_op)(struct vhost_dev *dev,
65 struct vhost_vring_state *ring);
66typedef int (*vhost_get_vring_base_op)(struct vhost_dev *dev,
67 struct vhost_vring_state *ring);
68typedef int (*vhost_set_vring_kick_op)(struct vhost_dev *dev,
69 struct vhost_vring_file *file);
70typedef int (*vhost_set_vring_call_op)(struct vhost_dev *dev,
71 struct vhost_vring_file *file);
72typedef int (*vhost_set_vring_err_op)(struct vhost_dev *dev,
73 struct vhost_vring_file *file);
74typedef int (*vhost_set_vring_busyloop_timeout_op)(struct vhost_dev *dev,
75 struct vhost_vring_state *r);
76typedef int (*vhost_set_features_op)(struct vhost_dev *dev,
77 uint64_t features);
78typedef int (*vhost_get_features_op)(struct vhost_dev *dev,
79 uint64_t *features);
80typedef int (*vhost_set_backend_cap_op)(struct vhost_dev *dev);
81typedef int (*vhost_set_owner_op)(struct vhost_dev *dev);
82typedef int (*vhost_reset_device_op)(struct vhost_dev *dev);
83typedef int (*vhost_get_vq_index_op)(struct vhost_dev *dev, int idx);
84typedef int (*vhost_set_vring_enable_op)(struct vhost_dev *dev,
85 int enable);
86typedef bool (*vhost_requires_shm_log_op)(struct vhost_dev *dev);
87typedef int (*vhost_migration_done_op)(struct vhost_dev *dev,
88 char *mac_addr);
89typedef bool (*vhost_backend_can_merge_op)(struct vhost_dev *dev,
90 uint64_t start1, uint64_t size1,
91 uint64_t start2, uint64_t size2);
92typedef int (*vhost_vsock_set_guest_cid_op)(struct vhost_dev *dev,
93 uint64_t guest_cid);
94typedef int (*vhost_vsock_set_running_op)(struct vhost_dev *dev, int start);
95typedef void (*vhost_set_iotlb_callback_op)(struct vhost_dev *dev,
96 int enabled);
97typedef int (*vhost_send_device_iotlb_msg_op)(struct vhost_dev *dev,
98 struct vhost_iotlb_msg *imsg);
99typedef int (*vhost_set_config_op)(struct vhost_dev *dev, const uint8_t *data,
100 uint32_t offset, uint32_t size,
101 uint32_t flags);
102typedef int (*vhost_get_config_op)(struct vhost_dev *dev, uint8_t *config,
103 uint32_t config_len, Error **errp);
104
105typedef int (*vhost_crypto_create_session_op)(struct vhost_dev *dev,
106 void *session_info,
107 uint64_t *session_id);
108typedef int (*vhost_crypto_close_session_op)(struct vhost_dev *dev,
109 uint64_t session_id);
110
111typedef bool (*vhost_backend_mem_section_filter_op)(struct vhost_dev *dev,
112 MemoryRegionSection *section);
113
114typedef int (*vhost_get_inflight_fd_op)(struct vhost_dev *dev,
115 uint16_t queue_size,
116 struct vhost_inflight *inflight);
117
118typedef int (*vhost_set_inflight_fd_op)(struct vhost_dev *dev,
119 struct vhost_inflight *inflight);
120
121typedef int (*vhost_dev_start_op)(struct vhost_dev *dev, bool started);
122
123typedef int (*vhost_vq_get_addr_op)(struct vhost_dev *dev,
124 struct vhost_vring_addr *addr,
125 struct vhost_virtqueue *vq);
126
127typedef int (*vhost_get_device_id_op)(struct vhost_dev *dev, uint32_t *dev_id);
128
129typedef bool (*vhost_force_iommu_op)(struct vhost_dev *dev);
130
131typedef struct VhostOps {
132 VhostBackendType backend_type;
133 vhost_backend_init vhost_backend_init;
134 vhost_backend_cleanup vhost_backend_cleanup;
135 vhost_backend_memslots_limit vhost_backend_memslots_limit;
136 vhost_net_set_backend_op vhost_net_set_backend;
137 vhost_net_set_mtu_op vhost_net_set_mtu;
138 vhost_scsi_set_endpoint_op vhost_scsi_set_endpoint;
139 vhost_scsi_clear_endpoint_op vhost_scsi_clear_endpoint;
140 vhost_scsi_get_abi_version_op vhost_scsi_get_abi_version;
141 vhost_set_log_base_op vhost_set_log_base;
142 vhost_set_mem_table_op vhost_set_mem_table;
143 vhost_set_vring_addr_op vhost_set_vring_addr;
144 vhost_set_vring_endian_op vhost_set_vring_endian;
145 vhost_set_vring_num_op vhost_set_vring_num;
146 vhost_set_vring_base_op vhost_set_vring_base;
147 vhost_get_vring_base_op vhost_get_vring_base;
148 vhost_set_vring_kick_op vhost_set_vring_kick;
149 vhost_set_vring_call_op vhost_set_vring_call;
150 vhost_set_vring_err_op vhost_set_vring_err;
151 vhost_set_vring_busyloop_timeout_op vhost_set_vring_busyloop_timeout;
152 vhost_set_features_op vhost_set_features;
153 vhost_get_features_op vhost_get_features;
154 vhost_set_backend_cap_op vhost_set_backend_cap;
155 vhost_set_owner_op vhost_set_owner;
156 vhost_reset_device_op vhost_reset_device;
157 vhost_get_vq_index_op vhost_get_vq_index;
158 vhost_set_vring_enable_op vhost_set_vring_enable;
159 vhost_requires_shm_log_op vhost_requires_shm_log;
160 vhost_migration_done_op vhost_migration_done;
161 vhost_backend_can_merge_op vhost_backend_can_merge;
162 vhost_vsock_set_guest_cid_op vhost_vsock_set_guest_cid;
163 vhost_vsock_set_running_op vhost_vsock_set_running;
164 vhost_set_iotlb_callback_op vhost_set_iotlb_callback;
165 vhost_send_device_iotlb_msg_op vhost_send_device_iotlb_msg;
166 vhost_get_config_op vhost_get_config;
167 vhost_set_config_op vhost_set_config;
168 vhost_crypto_create_session_op vhost_crypto_create_session;
169 vhost_crypto_close_session_op vhost_crypto_close_session;
170 vhost_backend_mem_section_filter_op vhost_backend_mem_section_filter;
171 vhost_get_inflight_fd_op vhost_get_inflight_fd;
172 vhost_set_inflight_fd_op vhost_set_inflight_fd;
173 vhost_dev_start_op vhost_dev_start;
174 vhost_vq_get_addr_op vhost_vq_get_addr;
175 vhost_get_device_id_op vhost_get_device_id;
176 vhost_force_iommu_op vhost_force_iommu;
177} VhostOps;
178
179int vhost_backend_update_device_iotlb(struct vhost_dev *dev,
180 uint64_t iova, uint64_t uaddr,
181 uint64_t len,
182 IOMMUAccessFlags perm);
183
184int vhost_backend_invalidate_device_iotlb(struct vhost_dev *dev,
185 uint64_t iova, uint64_t len);
186
187int vhost_backend_handle_iotlb_msg(struct vhost_dev *dev,
188 struct vhost_iotlb_msg *imsg);
189
190int vhost_user_gpu_set_socket(struct vhost_dev *dev, int fd);
191
192#endif
193
