Kernel (blogs)

Hobby kernel made from scratch. Very fun

Intro

I wanted to learn more about how operating systems work internally so I decided to make my own 64-bit x86_64 OS. Basically all of the code and design choices were made by me so I could properly learn as much as possible, and also so it is my crappy machine and no one elses. I also mainly used the book Operating Systems Concepts: Three Easy Pieces to also guide me a bit.

I decided to blog my process and below are the blogs. Also here is the source.

Blogs

Persistent Storage!!

January 14, 2026

PCI HAL and AHCI Driver

Redoing Scheduler & Bug City

December 23, 2025

Rewriting scheduler with dynamic memory, multitask sync, creating debugging tools with GDB, and fixing wonky bugs

Virtual Memory and Slab Allocator

November 17, 2025

Page table and virtual memory chronicles!!! Also personal kmalloc() implementation

Tasks and Scheduler

October 21, 2025

Created a round robin scheduler for multiple tasks

Interrupts and IO

September 16, 2025

Printing helper functions, IDT, ISRs, the PIC, and keyboard interrupts

Introduction and Setup

September 02, 2025

Backstory, build environment, and booting 64 bit mode into kernel_main() in C