/* * 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 #include "exec/memory.h" typedef enum VhostBackendType { VHOST_BACKEND_TYPE_NONE = 0, VHOST_BACKEND_TYPE_KERNEL = 1, VHOST_BACKEND_TYPE_USER = 2, VHOST_BACKEND_TYPE_VDPA = 3, VHOST_BACKEND_TYPE_MAX = 4, } VhostBackendType; typedef enum VhostSetConfigType { VHOST_SET_CONFIG_TYPE_FRONTEND = 0, VHOST_SET_CONFIG_TYPE_MIGRATION = 1, } VhostSetConfigType; typedef enum VhostDeviceStateDirection { /* Transfer state from back-end (device) to front-end */ VHOST_TRANSFER_STATE_DIRECTION_SAVE = 0, /* Transfer state from front-end to back-end (device) */ VHOST_TRANSFER_STATE_DIRECTION_LOAD = 1, } VhostDeviceStateDirection; typedef enum VhostDeviceStatePhase { /* The device (and all its vrings) is stopped */ VHOST_TRANSFER_STATE_PHASE_STOPPED = 0, } VhostDeviceStatePhase; struct vhost_inflight; struct vhost_dev; struct vhost_log; struct vhost_memory; struct vhost_vring_file; struct vhost_vring_state; struct vhost_vring_addr; struct vhost_vring_worker; struct vhost_worker_state; struct vhost_scsi_target; struct vhost_iotlb_msg; struct vhost_virtqueue; typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque, Error **errp); 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_net_set_mtu_op)(struct vhost_dev *dev, uint16_t mtu); 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_err_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_attach_vring_worker_op)(struct vhost_dev *dev, struct vhost_vring_worker *worker); typedef int (*vhost_get_vring_worker_op)(struct vhost_dev *dev, struct vhost_vring_worker *worker); typedef int (*vhost_new_worker_op)(struct vhost_dev *dev, struct vhost_worker_state *worker); typedef int (*vhost_free_worker_op)(struct vhost_dev *dev, struct vhost_worker_state *worker); 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_backend_cap_op)(struct vhost_dev *dev); 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 int (*vhost_vsock_set_guest_cid_op)(struct vhost_dev *dev, uint64_t guest_cid); typedef int (*vhost_vsock_set_running_op)(struct vhost_dev *dev, int start); typedef void (*vhost_set_iotlb_callback_op)(struct vhost_dev *dev, int enabled); typedef int (*vhost_send_device_iotlb_msg_op)(struct vhost_dev *dev, struct vhost_iotlb_msg *imsg); typedef int (*vhost_set_config_op)(struct vhost_dev *dev, const uint8_t *data, uint32_t offset, uint32_t size, uint32_t flags); typedef int (*vhost_get_config_op)(struct vhost_dev *dev, uint8_t *config, uint32_t config_len, Error **errp); typedef int (*vhost_crypto_create_session_op)(struct vhost_dev *dev, void *session_info, uint64_t *session_id); typedef int (*vhost_crypto_close_session_op)(struct vhost_dev *dev, uint64_t session_id); typedef bool (*vhost_backend_no_private_memslots_op)(struct vhost_dev *dev); typedef int (*vhost_get_inflight_fd_op)(struct vhost_dev *dev, uint16_t queue_size, struct vhost_inflight *inflight); typedef int (*vhost_set_inflight_fd_op)(struct vhost_dev *dev, struct vhost_inflight *inflight); typedef int (*vhost_dev_start_op)(struct vhost_dev *dev, bool started); typedef int (*vhost_vq_get_addr_op)(struct vhost_dev *dev, struct vhost_vring_addr *addr, struct vhost_virtqueue *vq); typedef int (*vhost_get_device_id_op)(struct vhost_dev *dev, uint32_t *dev_id); typedef bool (*vhost_force_iommu_op)(struct vhost_dev *dev); typedef int (*vhost_set_config_call_op)(struct vhost_dev *dev, int fd); typedef void (*vhost_reset_status_op)(struct vhost_dev *dev); typedef bool (*vhost_supports_device_state_op)(struct vhost_dev *dev); typedef int (*vhost_set_device_state_fd_op)(struct vhost_dev *dev, VhostDeviceStateDirection direction, VhostDeviceStatePhase phase, int fd, int *reply_fd, Error **errp); typedef int (*vhost_check_device_state_op)(struct vhost_dev *dev, Error **errp); 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_backend_no_private_memslots_op vhost_backend_no_private_memslots; vhost_net_set_backend_op vhost_net_set_backend; vhost_net_set_mtu_op vhost_net_set_mtu; 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_err_op vhost_set_vring_err; vhost_set_vring_busyloop_timeout_op vhost_set_vring_busyloop_timeout; vhost_new_worker_op vhost_new_worker; vhost_free_worker_op vhost_free_worker; vhost_get_vring_worker_op vhost_get_vring_worker; vhost_attach_vring_worker_op vhost_attach_vring_worker; vhost_set_features_op vhost_set_features; vhost_get_features_op vhost_get_features; vhost_set_backend_cap_op vhost_set_backend_cap; 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_vsock_set_guest_cid_op vhost_vsock_set_guest_cid; vhost_vsock_set_running_op vhost_vsock_set_running; vhost_set_iotlb_callback_op vhost_set_iotlb_callback; vhost_send_device_iotlb_msg_op vhost_send_device_iotlb_msg; vhost_get_config_op vhost_get_config; vhost_set_config_op vhost_set_config; vhost_crypto_create_session_op vhost_crypto_create_session; vhost_crypto_close_session_op vhost_crypto_close_session; vhost_get_inflight_fd_op vhost_get_inflight_fd; vhost_set_inflight_fd_op vhost_set_inflight_fd; vhost_dev_start_op vhost_dev_start; vhost_vq_get_addr_op vhost_vq_get_addr; vhost_get_device_id_op vhost_get_device_id; vhost_force_iommu_op vhost_force_iommu; vhost_set_config_call_op vhost_set_config_call; vhost_reset_status_op vhost_reset_status; vhost_supports_device_state_op vhost_supports_device_state; vhost_set_device_state_fd_op vhost_set_device_state_fd; vhost_check_device_state_op vhost_check_device_state; } VhostOps; int vhost_backend_update_device_iotlb(struct vhost_dev *dev, uint64_t iova, uint64_t uaddr, uint64_t len, IOMMUAccessFlags perm); int vhost_backend_invalidate_device_iotlb(struct vhost_dev *dev, uint64_t iova, uint64_t len); int vhost_backend_handle_iotlb_msg(struct vhost_dev *dev, struct vhost_iotlb_msg *imsg); int vhost_user_gpu_set_socket(struct vhost_dev *dev, int fd); int vhost_user_get_shared_object(struct vhost_dev *dev, unsigned char *uuid, int *dmabuf_fd); #endif /* VHOST_BACKEND_H */