1# vHost 2 3A pure rust library for vhost-user. This is a fork of [rust-vmm/vhost](https://github.com/rust-vmm/vhost). 4 5 6 7The [vhost-user protocol](https://qemu.readthedocs.io/en/latest/interop/vhost-user.html#communication) aims to implement vhost backend drivers in 8userspace, which complements the ioctl interface used to control the vhost 9implementation in the Linux kernel. It implements the control plane needed 10to establish virtqueue sharing with a user space process on the same host. 11It uses communication over a Unix domain socket to share file descriptors in 12the ancillary data of the message. 13 14The protocol defines two sides of the communication, master and slave. 15Master is the application that shares its virtqueues, slave is the consumer 16of the virtqueues. Master and slave can be either a client (i.e. connecting) 17or server (listening) in the socket communication. 18