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vhost-device-spi: Add initial implementation

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This program is a vhost-user backend that emulates a VirtIO SPI bus.
This program takes the layout of the spi bus and its devices on the host
OS and then talks to them via the /dev/spidevX.Y interface when a request
comes from the guest OS for a SPI device.

The implementation corresponds with the specification:
https://github.com/oasis-tcs/virtio-spec/tree/virtio-1.4/device-types/spi

Signed-off-by: Haixu Cui <quic_haixcui@quicinc.com>
This commit is contained in:
Haixu Cui 2024-03-27 15:22:15 +08:00 • committed by Stefano Garzarella
parent 7efcb34b88
commit d12bf9886d
14 changed files with 3219 additions and 1 deletions
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README.md
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@ -21,6 +21,7 @@ Here is the list of device backends that we support:
- [SCMI](https://github.com/rust-vmm/vhost-device/blob/main/vhost-device-scmi/README.md)
- [SCSI](https://github.com/rust-vmm/vhost-device/blob/main/vhost-device-scsi/README.md)
- [Sound](https://github.com/rust-vmm/vhost-device/blob/main/vhost-device-sound/README.md)
- [SPI](https://github.com/rust-vmm/vhost-device/blob/main/vhost-device-spi/README.md)
- [VSOCK](https://github.com/rust-vmm/vhost-device/blob/main/vhost-device-vsock/README.md)
The vhost-device workspace also provides a