drivers/vhost/vhost.h

70 struct vhost_virtqueue {  struct
71 	struct vhost_dev *dev;
74 	struct mutex mutex;
75 	unsigned int num;
76 	vring_desc_t __user *desc;
77 	vring_avail_t __user *avail;
78 	vring_used_t __user *used;
79 	const struct vhost_iotlb_map *meta_iotlb[VHOST_NUM_ADDRS];
80 	struct file *kick;
81 	struct vhost_vring_call call_ctx;
82 	struct eventfd_ctx *error_ctx;
83 	struct eventfd_ctx *log_ctx;
85 	struct vhost_poll poll;
88 	vhost_work_fn_t handle_kick;
91 	u16 last_avail_idx;
94 	u16 avail_idx;
97 	u16 last_used_idx;
100 	u16 used_flags;
103 	u16 signalled_used;
106 	bool signalled_used_valid;
109 	bool log_used;
110 	u64 log_addr;
112 	struct iovec iov[UIO_MAXIOV];
113 	struct iovec iotlb_iov[64];
114 	struct iovec *indirect;
115 	struct vring_used_elem *heads;
117 	struct vhost_iotlb *umem;
118 	struct vhost_iotlb *iotlb;
142   struct vhost_virtqueue *vq;  argument