- Bootloader: Limine is used to get the kernel running as quickly possible. Limine boot protocol is chosed by HanOS.
- CPU mode: x86-64 Long Mode is supported in HanOS. HanOS does not has plan to support other x86 modes.
- GUI: GUI will not be the 1st priority for HanOS. But HanOS will port some GUI libraries in the future.
- Framebuffer based terminal and kernel log system
- Initialize GDT and IDT to handle exceptions
- Physical memory allocator and virtual memory manager
- Parse ACPI tables and initialize MADT
- Start up all CPUs
- Set up APIC(Advanced Programmable Interrupt Controller) interrupt controller
- Read RTC time from CMOS and configure HPET timer
- Scheduling driven by APIC timer
- Keyboard/mouse driver and command line interface
- VFS, FAT32 and RAMFS file system. RAMFS is for loading and executing program from ELF file
- Tasks of kernel and user space
- Background image display for command line interface
- Implement syscalls for bash and other system tools
- Simple userspace shell apps ported from xv6
- Adopted 14px fonts from https://font.gohu.org/ and convert to psf1 using bdf2psf.
bdf2psf gohufont-14.bdf /usr/share/bdf2psf/standard.equivalents /usr/share/bdf2psf/ascii.set 256 gohufont-14.psf
- The disk image file - "hdd.img" in release folder can be used for test.
qemu-system-x86_64 -enable-kvm -serial stdio -M q35 -m 1G -smp 2 -no-reboot -rtc base=localtime -drive id=handisk,if=ide,format=raw,bus=0,unit=0,file=hdd.img
- Execute "doxygen Doxygen" in root folder and "make" in "latex" folder to generate manual.pdf.