x86_64 OS

This is an OS written entirely in Rust.

This initially started as a follow of Philipp Oppermann's blog Writing an OS in Rust.

After finishing the blog, I've tried my hand at taking this further.

I work on this on and off, so refinements and bug fixes always remain.

I also wrote a blog about whatever I made here. Pardon me if the blog is not updated with the latest code (will do it soon).

Own Contributions so far [this is updated]:

• Custom File System (includes VirtIO block device drivers)
• Interrupt Handling with ACPI
• Bitmap Frame Allocator

Setup:

Requirements:

• Rust (Nightly toolchain)
• llvm-tools-preview component (rustup component add llvm-tools-preview)
• QEMU (Specifically qemu-system-x86_64)

The files are stored in a disk.img file at project root. For creating a 64MiB raw file use:

dd if=/dev/zero of=disk.img bs=1M count=64

To compile the kernel, build the bootloader and launch the OS in QEMU:

cargo run --bin builder

AI Usage:

As modules grow older, I have cleaned them up and added documentation using AI. There was a lot of explanation comments that I wrote while first learning them. They were cluttering up the file. No major code was delegated to AI.