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320203dcaa
Remove the previous vmm_vhost::Error enum, as most of its variants are no longer used. Instead, expose vhost_user::Error as the top-level one. BUG=b:206900656 TEST=cargo check Change-Id: Ic5d9f7dcc6e2986d7b51885e2c0f44aa4e012e5f Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3295218 Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org> Reviewed-by: Chirantan Ekbote <chirantan@chromium.org> |
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vHost
A pure rust library for vhost-user. This is a fork of rust-vmm/vhost.
The vhost-user protocol aims to implement vhost backend drivers in userspace, which complements the ioctl interface used to control the vhost implementation in the Linux kernel. It implements the control plane needed to establish virtqueue sharing with a user space process on the same host. It uses communication over a Unix domain socket to share file descriptors in the ancillary data of the message.
The protocol defines two sides of the communication, master and slave. Master is the application that shares its virtqueues, slave is the consumer of the virtqueues. Master and slave can be either a client (i.e. connecting) or server (listening) in the socket communication.