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# kvm-rs
[](https://github.com/johannst/mini-kvm-rs/actions/workflows/rust.yml)
A playground for the [`Kernel Virtual Machine
(KVM)`](https://www.kernel.org/doc/html/latest/virt/kvm/index.html) in rust to
learn about `KVM`, [`rust
ffi`](https://doc.rust-lang.org/stable/std/ffi/index.html) and `x86_64`.
The sources are structured as follows:
- [`src/`](./src) provides a small library as abstraction over the raw [KVM
API](https://www.kernel.org/doc/html/latest/virt/kvm/api.html#api-description).
- [`examples/`](./examples) contains example VMs using the library above.
- [`guest/`](./guest) contains the guest source code.
- [`sysdeps/`](./sysdeps) helper to generate some KVM constants from the system
header (executed by [build.rs](./build.rs)).
## Documentation
Rustdoc for this crate is avalable at
[johannst.github.io/mini-kvm-rs](https://johannst.github.io/mini-kvm-rs/kvm_rs/index.html).
## Real Mode (16bit) example
Runs the [real mode VM](./examples/real_mode.rs) with the [guest program](./guest/guest16.S).
```bash
# Once: Build the guest binary image.
make -C guest
# Run the Real Mode example.
cargo run --example real_mode
```
## Long Mode (64bit) example
Runs the [long mode VM](./examples/long_mode.rs) with the [guest program](./guest/guest64.S).
```bash
# Once: Build the guest binary image.
make -C guest
# Run the Long Mode example.
cargo run --example long_mode
```
## License
This project is licensed under the [MIT](LICENSE) license.
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