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# VirtIO-drivers-rs
[![crates.io page](https://img.shields.io/crates/v/virtio-drivers.svg)](https://crates.io/crates/virtio-drivers)
[![docs.rs page](https://docs.rs/virtio-drivers/badge.svg)](https://docs.rs/virtio-drivers)
[![CI](https://github.com/rcore-os/virtio-drivers/workflows/CI/badge.svg?branch=master)](https://github.com/rcore-os/virtio-drivers/actions)
VirtIO guest drivers in Rust. For **no_std** environment.
## Support status
### Device types
| Device | Supported |
| ------- | --------- |
| Block | ✅ |
| Net | ✅ |
| GPU | ✅ |
| Input | ✅ |
| Console | ✅ |
| Socket | ✅ |
| ... | ❌ |
### Transports
| Transport | Supported | |
| ----------- | --------- | ------------------------------------------------- |
| Legacy MMIO | ✅ | version 1 |
| MMIO | ✅ | version 2 |
| PCI | ✅ | Memory-mapped CAM only, e.g. aarch64 or PCIe ECAM |
### Device-independent features
| Feature flag | Supported | |
| ---------------------------- | --------- | --------------------------------------- |
| `VIRTIO_F_INDIRECT_DESC` | ✅ | Indirect descriptors |
| `VIRTIO_F_EVENT_IDX` | ✅ | `avail_event` and `used_event` fields |
| `VIRTIO_F_VERSION_1` | TODO | VirtIO version 1 compliance |
| `VIRTIO_F_ACCESS_PLATFORM` | ❌ | Limited device access to memory |
| `VIRTIO_F_RING_PACKED` | ❌ | Packed virtqueue layout |
| `VIRTIO_F_IN_ORDER` | ❌ | Optimisations for in-order buffer usage |
| `VIRTIO_F_ORDER_PLATFORM` | ❌ | Platform ordering for memory access |
| `VIRTIO_F_SR_IOV` | ❌ | Single root I/O virtualization |
| `VIRTIO_F_NOTIFICATION_DATA` | ❌ | Extra data in device notifications |
## Examples & Tests
### [x86_64](./examples/x86_64)
```bash
cd examples/x86_64
make qemu
```
### [aarch64](./examples/aarch64)
```bash
cd examples/aarch64
make qemu
```
### [RISCV](./examples/riscv)
```bash
cd examples/riscv
make qemu
```
You will see device info & GUI Window in qemu.
<img decoding="async" src="https://github.com/rcore-os/virtio-drivers/raw/master/examples/riscv/virtio-test-gpu.png" width="50%">
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