cach30verfl0w/overflowos

OverflowOS is a UEFI-based Operating System with a monolithic Kernel, written in Rust

OverflowOS

OverflowOS is a UEFI-based Operating System with a monolithic Kernel, fully written in Rust. We support the architectures x86_64 and ARM64, and I'm not planning to implement 32-bit support in the future. You can see my planned features in this project. If you have some ideas, just create an Issue.

Current project packages

• OSImage - Command-Line Tool to generate image files for Rust Operating Systems (by Cach30verfl0w)
• kernel - The original monolithic Kernel of OverflowOS (by Cach30verfl0w)
• libgraphics - LibGraphics is a library to instrument the Graphics Output Protocol for drawing things or writing Text (by Cach30verfl0w)
• libcpu - LibCPU is a library to interact with platform-independent and platform-dependant features of the CPU (by Cach30verfl0w)
  • This library currently only supports the architectures x86 and x86_64, but ARM and RISC-V support is also planned

Install Dependencies

Here are a few steps to install all dependencies to set up a development environment for OverflowOS.

Debian/Ubuntu

$> sudo apt update -y && sudo apt install -y qemu-system ovmf xorriso
$> git clone https://github.com/Cach30verfl0w/OSImage
$> cd OSImage
$> cargo install --path ./

Run in QEMU

$> osimage build-image --image-file overflow.img --iso-file overflow.iso
$> osimage run-qemu --iso-file overflow.iso

Credits

• x86_64-unknown-none target from phil-opp
• VGA Text Mode Tutorial from phil-opp
• Some information from OSDev.org
• Information about GDT and IDT from HackerNoon.com

overflowos's Issues

Implement Global Descriptor Table (GDT)

Implement Interrupt Descriptor Table (IDT)

More documentation in Bootloader and Kernel

Implement OverflowOS Kernel Loader in Bootloader

Create Auto-Release GitHub Action

Implement Testing and use it with GitHub Actions

Implement CPUID instruction API Wrapper

Implement enabling routine for SIMD Extensions like AVX

Implement Memory Allocator for Kernel (UEFI Runtime Services)

Implement fuzzing for system components, API and File System