9aad781959
This adds the vhost backend callouts for the worker ioctls added in the
6.4 linux kernel commit:
c1ecd8e95007 ("vhost: allow userspace to create workers")
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20231204231618.21962-2-michael.christie@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
236 lines
11 KiB
C
236 lines
11 KiB
C
/*
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* vhost-backend
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*
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* Copyright (c) 2013 Virtual Open Systems Sarl.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef VHOST_BACKEND_H
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#define VHOST_BACKEND_H
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#include "exec/memory.h"
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typedef enum VhostBackendType {
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VHOST_BACKEND_TYPE_NONE = 0,
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VHOST_BACKEND_TYPE_KERNEL = 1,
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VHOST_BACKEND_TYPE_USER = 2,
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VHOST_BACKEND_TYPE_VDPA = 3,
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VHOST_BACKEND_TYPE_MAX = 4,
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} VhostBackendType;
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typedef enum VhostSetConfigType {
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VHOST_SET_CONFIG_TYPE_FRONTEND = 0,
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VHOST_SET_CONFIG_TYPE_MIGRATION = 1,
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} VhostSetConfigType;
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typedef enum VhostDeviceStateDirection {
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/* Transfer state from back-end (device) to front-end */
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VHOST_TRANSFER_STATE_DIRECTION_SAVE = 0,
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/* Transfer state from front-end to back-end (device) */
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VHOST_TRANSFER_STATE_DIRECTION_LOAD = 1,
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} VhostDeviceStateDirection;
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typedef enum VhostDeviceStatePhase {
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/* The device (and all its vrings) is stopped */
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VHOST_TRANSFER_STATE_PHASE_STOPPED = 0,
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} VhostDeviceStatePhase;
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struct vhost_inflight;
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struct vhost_dev;
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struct vhost_log;
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struct vhost_memory;
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struct vhost_vring_file;
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struct vhost_vring_state;
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struct vhost_vring_addr;
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struct vhost_vring_worker;
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struct vhost_worker_state;
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struct vhost_scsi_target;
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struct vhost_iotlb_msg;
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struct vhost_virtqueue;
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typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque,
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Error **errp);
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typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev);
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typedef int (*vhost_backend_memslots_limit)(struct vhost_dev *dev);
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typedef int (*vhost_net_set_backend_op)(struct vhost_dev *dev,
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struct vhost_vring_file *file);
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typedef int (*vhost_net_set_mtu_op)(struct vhost_dev *dev, uint16_t mtu);
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typedef int (*vhost_scsi_set_endpoint_op)(struct vhost_dev *dev,
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struct vhost_scsi_target *target);
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typedef int (*vhost_scsi_clear_endpoint_op)(struct vhost_dev *dev,
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struct vhost_scsi_target *target);
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typedef int (*vhost_scsi_get_abi_version_op)(struct vhost_dev *dev,
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int *version);
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typedef int (*vhost_set_log_base_op)(struct vhost_dev *dev, uint64_t base,
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struct vhost_log *log);
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typedef int (*vhost_set_mem_table_op)(struct vhost_dev *dev,
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struct vhost_memory *mem);
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typedef int (*vhost_set_vring_addr_op)(struct vhost_dev *dev,
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struct vhost_vring_addr *addr);
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typedef int (*vhost_set_vring_endian_op)(struct vhost_dev *dev,
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struct vhost_vring_state *ring);
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typedef int (*vhost_set_vring_num_op)(struct vhost_dev *dev,
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struct vhost_vring_state *ring);
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typedef int (*vhost_set_vring_base_op)(struct vhost_dev *dev,
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struct vhost_vring_state *ring);
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typedef int (*vhost_get_vring_base_op)(struct vhost_dev *dev,
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struct vhost_vring_state *ring);
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typedef int (*vhost_set_vring_kick_op)(struct vhost_dev *dev,
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struct vhost_vring_file *file);
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typedef int (*vhost_set_vring_call_op)(struct vhost_dev *dev,
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struct vhost_vring_file *file);
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typedef int (*vhost_set_vring_err_op)(struct vhost_dev *dev,
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struct vhost_vring_file *file);
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typedef int (*vhost_set_vring_busyloop_timeout_op)(struct vhost_dev *dev,
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struct vhost_vring_state *r);
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typedef int (*vhost_attach_vring_worker_op)(struct vhost_dev *dev,
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struct vhost_vring_worker *worker);
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typedef int (*vhost_get_vring_worker_op)(struct vhost_dev *dev,
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struct vhost_vring_worker *worker);
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typedef int (*vhost_new_worker_op)(struct vhost_dev *dev,
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struct vhost_worker_state *worker);
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typedef int (*vhost_free_worker_op)(struct vhost_dev *dev,
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struct vhost_worker_state *worker);
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typedef int (*vhost_set_features_op)(struct vhost_dev *dev,
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uint64_t features);
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typedef int (*vhost_get_features_op)(struct vhost_dev *dev,
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uint64_t *features);
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typedef int (*vhost_set_backend_cap_op)(struct vhost_dev *dev);
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typedef int (*vhost_set_owner_op)(struct vhost_dev *dev);
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typedef int (*vhost_reset_device_op)(struct vhost_dev *dev);
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typedef int (*vhost_get_vq_index_op)(struct vhost_dev *dev, int idx);
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typedef int (*vhost_set_vring_enable_op)(struct vhost_dev *dev,
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int enable);
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typedef bool (*vhost_requires_shm_log_op)(struct vhost_dev *dev);
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typedef int (*vhost_migration_done_op)(struct vhost_dev *dev,
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char *mac_addr);
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typedef int (*vhost_vsock_set_guest_cid_op)(struct vhost_dev *dev,
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uint64_t guest_cid);
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typedef int (*vhost_vsock_set_running_op)(struct vhost_dev *dev, int start);
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typedef void (*vhost_set_iotlb_callback_op)(struct vhost_dev *dev,
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int enabled);
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typedef int (*vhost_send_device_iotlb_msg_op)(struct vhost_dev *dev,
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struct vhost_iotlb_msg *imsg);
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typedef int (*vhost_set_config_op)(struct vhost_dev *dev, const uint8_t *data,
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uint32_t offset, uint32_t size,
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uint32_t flags);
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typedef int (*vhost_get_config_op)(struct vhost_dev *dev, uint8_t *config,
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uint32_t config_len, Error **errp);
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typedef int (*vhost_crypto_create_session_op)(struct vhost_dev *dev,
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void *session_info,
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uint64_t *session_id);
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typedef int (*vhost_crypto_close_session_op)(struct vhost_dev *dev,
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uint64_t session_id);
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typedef bool (*vhost_backend_no_private_memslots_op)(struct vhost_dev *dev);
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typedef int (*vhost_get_inflight_fd_op)(struct vhost_dev *dev,
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uint16_t queue_size,
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struct vhost_inflight *inflight);
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typedef int (*vhost_set_inflight_fd_op)(struct vhost_dev *dev,
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struct vhost_inflight *inflight);
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typedef int (*vhost_dev_start_op)(struct vhost_dev *dev, bool started);
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typedef int (*vhost_vq_get_addr_op)(struct vhost_dev *dev,
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struct vhost_vring_addr *addr,
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struct vhost_virtqueue *vq);
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typedef int (*vhost_get_device_id_op)(struct vhost_dev *dev, uint32_t *dev_id);
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typedef bool (*vhost_force_iommu_op)(struct vhost_dev *dev);
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typedef int (*vhost_set_config_call_op)(struct vhost_dev *dev,
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int fd);
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typedef void (*vhost_reset_status_op)(struct vhost_dev *dev);
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typedef bool (*vhost_supports_device_state_op)(struct vhost_dev *dev);
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typedef int (*vhost_set_device_state_fd_op)(struct vhost_dev *dev,
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VhostDeviceStateDirection direction,
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VhostDeviceStatePhase phase,
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int fd,
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int *reply_fd,
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Error **errp);
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typedef int (*vhost_check_device_state_op)(struct vhost_dev *dev, Error **errp);
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typedef struct VhostOps {
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VhostBackendType backend_type;
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vhost_backend_init vhost_backend_init;
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vhost_backend_cleanup vhost_backend_cleanup;
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vhost_backend_memslots_limit vhost_backend_memslots_limit;
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vhost_backend_no_private_memslots_op vhost_backend_no_private_memslots;
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vhost_net_set_backend_op vhost_net_set_backend;
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vhost_net_set_mtu_op vhost_net_set_mtu;
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vhost_scsi_set_endpoint_op vhost_scsi_set_endpoint;
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vhost_scsi_clear_endpoint_op vhost_scsi_clear_endpoint;
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vhost_scsi_get_abi_version_op vhost_scsi_get_abi_version;
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vhost_set_log_base_op vhost_set_log_base;
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vhost_set_mem_table_op vhost_set_mem_table;
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vhost_set_vring_addr_op vhost_set_vring_addr;
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vhost_set_vring_endian_op vhost_set_vring_endian;
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vhost_set_vring_num_op vhost_set_vring_num;
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vhost_set_vring_base_op vhost_set_vring_base;
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vhost_get_vring_base_op vhost_get_vring_base;
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vhost_set_vring_kick_op vhost_set_vring_kick;
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vhost_set_vring_call_op vhost_set_vring_call;
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vhost_set_vring_err_op vhost_set_vring_err;
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vhost_set_vring_busyloop_timeout_op vhost_set_vring_busyloop_timeout;
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vhost_new_worker_op vhost_new_worker;
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vhost_free_worker_op vhost_free_worker;
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vhost_get_vring_worker_op vhost_get_vring_worker;
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vhost_attach_vring_worker_op vhost_attach_vring_worker;
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vhost_set_features_op vhost_set_features;
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vhost_get_features_op vhost_get_features;
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vhost_set_backend_cap_op vhost_set_backend_cap;
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vhost_set_owner_op vhost_set_owner;
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vhost_reset_device_op vhost_reset_device;
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vhost_get_vq_index_op vhost_get_vq_index;
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vhost_set_vring_enable_op vhost_set_vring_enable;
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vhost_requires_shm_log_op vhost_requires_shm_log;
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vhost_migration_done_op vhost_migration_done;
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vhost_vsock_set_guest_cid_op vhost_vsock_set_guest_cid;
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vhost_vsock_set_running_op vhost_vsock_set_running;
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vhost_set_iotlb_callback_op vhost_set_iotlb_callback;
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vhost_send_device_iotlb_msg_op vhost_send_device_iotlb_msg;
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vhost_get_config_op vhost_get_config;
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vhost_set_config_op vhost_set_config;
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vhost_crypto_create_session_op vhost_crypto_create_session;
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vhost_crypto_close_session_op vhost_crypto_close_session;
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vhost_get_inflight_fd_op vhost_get_inflight_fd;
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vhost_set_inflight_fd_op vhost_set_inflight_fd;
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vhost_dev_start_op vhost_dev_start;
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vhost_vq_get_addr_op vhost_vq_get_addr;
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vhost_get_device_id_op vhost_get_device_id;
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vhost_force_iommu_op vhost_force_iommu;
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vhost_set_config_call_op vhost_set_config_call;
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vhost_reset_status_op vhost_reset_status;
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vhost_supports_device_state_op vhost_supports_device_state;
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vhost_set_device_state_fd_op vhost_set_device_state_fd;
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vhost_check_device_state_op vhost_check_device_state;
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} VhostOps;
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int vhost_backend_update_device_iotlb(struct vhost_dev *dev,
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uint64_t iova, uint64_t uaddr,
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uint64_t len,
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IOMMUAccessFlags perm);
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int vhost_backend_invalidate_device_iotlb(struct vhost_dev *dev,
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uint64_t iova, uint64_t len);
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int vhost_backend_handle_iotlb_msg(struct vhost_dev *dev,
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struct vhost_iotlb_msg *imsg);
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int vhost_user_gpu_set_socket(struct vhost_dev *dev, int fd);
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int vhost_user_get_shared_object(struct vhost_dev *dev, unsigned char *uuid,
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int *dmabuf_fd);
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#endif /* VHOST_BACKEND_H */
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