Kernel project

My first os built from scratch
Contributors are welcome

LICENSE

TODO

System

• [x] GDT
• [x] IDT
• [x] TSS
• [x] PCI
• [x] PCIe
• [x] MSI
• [ ] MSI-X

Memory

• [x] PMM
• [x] VMM
• [x] Heap

ACPI

• [x] ACPI
• [x] LAPIC
• [x] IOAPIC
• [x] Shutdown
• [x] Reboot

Device drivers

Audio

• [x] PC speaker
• [ ] AC97
• [ ] SB16

I/O

• [x] PS/2 Keyboard
• [x] PS/2 Mouse
• [x] COM

VMs

• [x] VMWare Tools
• [ ] VBox Guest Additions
• [ ] Virtio

Storage

• [ ] FDC
• [x] IDE
• [x] SATA
• [ ] NVMe
• [ ] Virtio block

Network

• [x] RTL8139
• [x] RTL8169 (Broken)
• [x] E1000
• [ ] Virtio network

USB

• [ ] UHCI
• [ ] OHCI
• [ ] EHCI
• [ ] XHCI

Timers

• [x] HPET
• [x] PIT
• [x] RTC
• [x] LAPIC Timer

Tasking

• [x] SMP
• [x] Scheduling
• [ ] IPC

Partition tables

• [x] MBR
• [x] GPT

Filesystems

• [x] VFS (Based on Vinix)
• [x] TMPFS
• [x] DEVFS
• [x] Initrd
• [ ] Echfs
• [ ] SFS
• [ ] Ext2
• [ ] Fat32
• [ ] ISO9660
• [ ] NTFS

Userspace

• [x] System calls
• [x] ELF
• [ ] Signals
• [ ] Userspace
• [ ] Libc
• [ ] Bash
• [ ] Coreutils

Network stack

• [x] Ethernet
• [x] ARP
• [x] IPv4
• [ ] IPv4 fragmentation support
• [x] ICMPv4
• [ ] TCP
• [ ] UDP
• [ ] DHCP
• [ ] HTTP
• [ ] Telnet
• [ ] SSL

Building And Running

Make sure you have following programs installed:

• Clang
• lld
• llvm
• Make
• Nasm
• Qemu x86-64
• Xorriso
• Wget
• Tar

If you have Debian based system (Ubuntu, linux mint, Pop_os! etc) you can install them with this command:
sudo apt install clang lld make nasm qemu-system-x86 xorriso wget tar

Follow these steps to build and run the os

1. Clone this repo with:
   git clone --single-branch --branch=master --depth=1 https://github.com/ilobilo/kernel

2. Go to the root directory of cloned repo and run:
   make -j$(nproc --all) For UEFI mode
   make bios -j$(nproc --all) For BIOS mode

If you, for some reason, are on Termux, run this command instead and connect to 127.0.0.1:5901 with VNC viewer:
make vnc -j$(nproc --all)

Options

• USEILAR=1: Use ILAR archive format for initrd instead of USTAR (requires libboost-iostreams-dev)
• NOUBSAN=1: Turn off UBSAN
• NOCLEAN=1: Don't clean the source after compiling
• NORUN=1: Don't run the kernel, just compile
• DEBUG=1: Turn off kvm and enable qemu logging

Discord server

https://discord.gg/fM5GK3RpS7

Resources used:

• Osdev wiki: https://wiki.osdev.org
• Osdev discord server: https://discord.gg/RnCtsqD
• PonchoOS: https://github.com/Absurdponcho/PonchoOS
• Poncho discord server: https://discord.gg/N2Dpwpu4qT
• Limine: https://github.com/limine-bootloader/limine
• Vinix: https://github.com/vlang/vinix
• Lyre: https://github.com/lyre-os/lyre
• Polaris: https://github.com/NSG650/Polaris
• Ilar: https://github.com/ilobilo/ilar
• Printf: https://github.com/eyalroz/printf
• Scalable Screen Font: https://gitlab.com/bztsrc/scalable-font2
• Liballoc: https://github.com/blanham/liballoc
• CWalk: https://github.com/likle/cwalk
• String: https://github.com/cocoz1/cpp-string
• Cxxshim: https://github.com/managarm/cxxshim
• Unifont: https://ftp.gnu.org/gnu/unifont/unifont-14.0.02