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9040bcb726
vhost-device/vhost-device-input
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dependabot[bot] 9040bcb726 build(deps): bump the rust-vmm group across 2 directories with 6 updates 
Bumps the rust-vmm group with 6 updates in the / directory:

| Package | From | To |
| --- | --- | --- |
| [vhost](https://github.com/rust-vmm/vhost) | `0.14.0` | `0.15.0` |
| [vhost-user-backend](https://github.com/rust-vmm/vhost) | `0.20.0` | `0.21.0` |
| [virtio-queue](https://github.com/rust-vmm/vm-virtio) | `0.16.0` | `0.17.0` |
| [vm-memory](https://github.com/rust-vmm/vm-memory) | `0.16.2` | `0.17.1` |
| [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) | `0.14.0` | `0.15.0` |
| [virtio-vsock](https://github.com/rust-vmm/vm-virtio) | `0.10.0` | `0.11.0` |

Bumps the rust-vmm group with 5 updates in the /staging directory:

| Package | From | To |
| --- | --- | --- |
| [vhost](https://github.com/rust-vmm/vhost) | `0.14.0` | `0.15.0` |
| [vhost-user-backend](https://github.com/rust-vmm/vhost) | `0.20.0` | `0.21.0` |
| [virtio-queue](https://github.com/rust-vmm/vm-virtio) | `0.16.0` | `0.17.0` |
| [vm-memory](https://github.com/rust-vmm/vm-memory) | `0.16.2` | `0.17.1` |
| [vmm-sys-util](https://github.com/rust-vmm/vmm-sys-util) | `0.14.0` | `0.15.0` |

Updates `vhost` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-v0.14.0...vhost-v0.15.0)

Updates `vhost-user-backend` from 0.20.0 to 0.21.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-user-backend-v0.20.0...vhost-user-backend-v0.21.0)

Updates `virtio-queue` from 0.16.0 to 0.17.0
- [Release notes](https://github.com/rust-vmm/vm-virtio/releases)
- [Commits](https://github.com/rust-vmm/vm-virtio/compare/virtio-queue-v0.16.0...virtio-queue-v0.17.0)

Updates `vm-memory` from 0.16.2 to 0.17.1
- [Release notes](https://github.com/rust-vmm/vm-memory/releases)
- [Changelog](https://github.com/rust-vmm/vm-memory/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vm-memory/compare/v0.16.2...v0.17.1)

Updates `vmm-sys-util` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.14.0...v0.15.0)

Updates `virtio-vsock` from 0.10.0 to 0.11.0
- [Release notes](https://github.com/rust-vmm/vm-virtio/releases)
- [Commits](https://github.com/rust-vmm/vm-virtio/compare/virtio-vsock-v0.10.0...virtio-vsock-v0.11.0)

Updates `vhost` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-v0.14.0...vhost-v0.15.0)

Updates `vhost-user-backend` from 0.20.0 to 0.21.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-user-backend-v0.20.0...vhost-user-backend-v0.21.0)

Updates `virtio-queue` from 0.16.0 to 0.17.0
- [Release notes](https://github.com/rust-vmm/vm-virtio/releases)
- [Commits](https://github.com/rust-vmm/vm-virtio/compare/virtio-queue-v0.16.0...virtio-queue-v0.17.0)

Updates `vm-memory` from 0.16.2 to 0.17.1
- [Release notes](https://github.com/rust-vmm/vm-memory/releases)
- [Changelog](https://github.com/rust-vmm/vm-memory/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vm-memory/compare/v0.16.2...v0.17.1)

Updates `vmm-sys-util` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.14.0...v0.15.0)

Updates `vhost` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-v0.14.0...vhost-v0.15.0)

Updates `vhost-user-backend` from 0.20.0 to 0.21.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-user-backend-v0.20.0...vhost-user-backend-v0.21.0)

Updates `virtio-queue` from 0.16.0 to 0.17.0
- [Release notes](https://github.com/rust-vmm/vm-virtio/releases)
- [Commits](https://github.com/rust-vmm/vm-virtio/compare/virtio-queue-v0.16.0...virtio-queue-v0.17.0)

Updates `vm-memory` from 0.16.2 to 0.17.1
- [Release notes](https://github.com/rust-vmm/vm-memory/releases)
- [Changelog](https://github.com/rust-vmm/vm-memory/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vm-memory/compare/v0.16.2...v0.17.1)

Updates `vmm-sys-util` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.14.0...v0.15.0)

Updates `vhost` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-v0.14.0...vhost-v0.15.0)

Updates `vhost-user-backend` from 0.20.0 to 0.21.0
- [Release notes](https://github.com/rust-vmm/vhost/releases)
- [Commits](https://github.com/rust-vmm/vhost/compare/vhost-user-backend-v0.20.0...vhost-user-backend-v0.21.0)

Updates `virtio-queue` from 0.16.0 to 0.17.0
- [Release notes](https://github.com/rust-vmm/vm-virtio/releases)
- [Commits](https://github.com/rust-vmm/vm-virtio/compare/virtio-queue-v0.16.0...virtio-queue-v0.17.0)

Updates `vm-memory` from 0.16.2 to 0.17.1
- [Release notes](https://github.com/rust-vmm/vm-memory/releases)
- [Changelog](https://github.com/rust-vmm/vm-memory/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vm-memory/compare/v0.16.2...v0.17.1)

Updates `vmm-sys-util` from 0.14.0 to 0.15.0
- [Release notes](https://github.com/rust-vmm/vmm-sys-util/releases)
- [Changelog](https://github.com/rust-vmm/vmm-sys-util/blob/main/CHANGELOG.md)
- [Commits](https://github.com/rust-vmm/vmm-sys-util/compare/v0.14.0...v0.15.0)

---
updated-dependencies:
- dependency-name: vhost
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vhost-user-backend
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: virtio-queue
  dependency-version: 0.17.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vm-memory
  dependency-version: 0.17.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vmm-sys-util
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: virtio-vsock
  dependency-version: 0.11.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vhost
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vhost-user-backend
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: virtio-queue
  dependency-version: 0.17.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vm-memory
  dependency-version: 0.17.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vmm-sys-util
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vhost
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vhost-user-backend
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: virtio-queue
  dependency-version: 0.17.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vm-memory
  dependency-version: 0.17.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vmm-sys-util
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vhost
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vhost-user-backend
  dependency-version: 0.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: virtio-queue
  dependency-version: 0.17.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vm-memory
  dependency-version: 0.17.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
- dependency-name: vmm-sys-util
  dependency-version: 0.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: rust-vmm
...

Signed-off-by: dependabot[bot] <support@github.com>
SG: adapted code to the new changes in vhost-user-backend and vm-memory:
  - used EventConsumer & EventNotifier instead of EventFd for exit_event
  - removed vm_memory::Error::InvalidGuestRegion
  - included vm_memory::Bytes needed for read_volatile_from
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
2025-11-19 11:28:08 +02:00
..
src build(deps): bump the rust-vmm group across 2 directories with 6 updates 2025-11-19 11:28:08 +02:00
Cargo.toml build(deps): bump the rust-vmm group across 2 directories with 6 updates 2025-11-19 11:28:08 +02:00
CHANGELOG.md vhost-device-input: prepare release v0.1.0 2024-11-21 16:08:37 +01:00
LICENSE-APACHE input: Initial support for input emulation 2023-12-07 17:35:26 +02:00
LICENSE-BSD-3-Clause input: Initial support for input emulation 2023-12-07 17:35:26 +02:00
README.md input: fix two minor typos 2025-07-07 11:28:02 +03:00

README.md

vhost-device-input

Synopsis

vhost-device-input --socket-path <SOCKET_PATH> --event-list <EVENT_LIST>

Description

This program is a vhost-user backend that emulates a VirtIO input event. It polls on a host's input event device (/dev/input/eventX) and passes the input event data to guests.

This program is tested with QEMU's vhost-user-input-pci. The implementation is based on the vhost-user protocol and as such should be interoperable with other virtual machine managers. Please see below for working examples.

Options

    -h, --help
        Print help.

    -s, --socket-path <SOCKET_PATH>
        Location of vhost-user Unix domain sockets, this path will be suffixed with
        0,1,2..event_count-1.

    -e, --event-list <EVENT_LIST>
        Input event device list in the format: event_device1,event_device2,...
        Example: --event-list /dev/input/event14,/dev/input/event15

Examples

The daemon should be started first:

host# vhost-device-input --socket-path /some/path/input.sock    \
      --event-list /dev/input/event14,/dev/input/event15

Note that from the above command the socket path "/some/path/input.sock0" and "/some/path/input.sock1" will be created for input events "event14" and "event15" respectively. This in turn needs to be communicated as chardev sockets to QEMU in order for the backend daemon and access the Virtio queues with the guest over the shared memory.

host# qemu-system -M virt                                                   \
      -object memory-backend-file,id=mem,size=4G,mem-path=/dev/shm,share=on \
      -chardev socket,path=/some/path/input.sock0,id=kbd0                   \
      -device vhost-user-input-pci,chardev=kdb0                             \
      -chardev socket,path=/some/path/input.sock1,id=mouse0                 \
      -device vhost-user-input-pci,chardev=mouse0                           \
      -numa node,memdev=mem                                                 \
      ...

License

This project is licensed under either of