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The type parameter `S: SlaveReqHandler` for `SlaveReqHelper` was introduced to check if it's vvu or not. Howver, SlaveReqHelper shouldn't take a type parameter of `SlaveReqHandler` because the helper will be used in the VVU proxy device which doesn't have its own req_handler. So, instead of taking the type parameter, we should have a new bool field which indicates if it's VVU or not. BUG=b:194136484 TEST=cargo test --all-features in vmm_vhost TEST=kokoro Change-Id: I35f20ef7c42cd74678ab5d87b68bbb58586d2fa5 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3320122 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Chirantan Ekbote <chirantan@chromium.org> Commit-Queue: Keiichi Watanabe <keiichiw@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.