OK is a kernel for Wasm3.

Currently only supports x86_64, but could be ported.

Your CPU must support SSE. This is necessary for Wasm3.

This project uses the Limine boot protocol.

$ cargo build --target x86_64-unknown-none
[put the generated kernel into a disk image with Limine]
$ qemu-system-x86_64 -bios path/to/OVMF.fd -hda path/to/DISK -m 512 -serial stdio

If you build with --release the debug messages from all the WASI support functions in src/syscall.rs will not show up.

• The usual kernel things (memory management, interrupt handling, and a virtual filesystem)
• Serial terminal output
• WebAssembly interpreting with Wasm3
• Some of WASI (namely the file I/O)

• Arguments and environment variables
• Pretty much anything else