VirtIO guest drivers in Rust. For no_std environment. fork from rcore-os

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Andrew Walbran ef282cf3de Merge pull request #40 from rcore-os/block		%!s(int64=2) %!d(string=hai) anos
.github	6787ffb9b0 Test more things in CI (#33)	%!s(int64=2) %!d(string=hai) anos
examples	559dc9611b Add method on block device to check if it is read-only (#36)	%!s(int64=2) %!d(string=hai) anos
src	090b912279 Add more documentation for VirtIOBlk and export SECTOR_SIZE constant.	%!s(int64=2) %!d(string=hai) anos
.gitignore	79ac8bf5fd Ignore all target directories in one .gitignore.	%!s(int64=2) %!d(string=hai) anos
Cargo.toml	8048887954 Use zerocopy rather than our AsBuf trait.	%!s(int64=2) %!d(string=hai) anos
LICENSE	6c88bcf3ed add simple README and LICENSE	%!s(int64=5) %!d(string=hai) anos
README.md	f83fa31030 Mark PCI transport as supported in README.	%!s(int64=2) %!d(string=hai) anos

VirtIO-drivers-rs

VirtIO guest drivers in Rust. For no_std environment.

Support status

Device types

Device	Supported
Block	✅
Net	✅
GPU	✅
Input	✅
Console	✅
...	❌

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 (TODO)
aarch64
RISCV