Commit Graph

2 Commits

Author SHA1 Message Date
wilkie
4e9cf1a94e Update STAGE_1.md with current progress
Mark completed items:
- Process creation with isolated address spaces
- Physical memory allocator and frame management
- Page table manipulation via recursive mapping
- Resource attachment (4KB page mapping)
- User mode execution (ring 3)
- SYSCALL/SYSRET interface with write/exit
- Boot infrastructure (PIC, GDT/TSS, IDT, IST)

Stage 1 is approximately 80% complete. Remaining work:
- Resource management syscalls (mmap/munmap)
- Permission update API
- ELF loader
- Per-process resource tracking
2025-12-28 02:42:10 -05:00
wilkie
c6fa2895e2 Initial commit: XOmB exokernel foundation
Core kernel infrastructure:
- Multiboot2 boot with GRUB, long mode setup, higher-half kernel
- Serial port output for debugging
- Unified boot info abstraction for future UEFI support

Memory management:
- Physical frame allocator with bitmap tracking
- Page table manipulation via recursive mapping (PML4[510])
- Support for 4KB, 2MB, and 1GB page mappings
- TLB invalidation and proper NXE support

Build system:
- Cargo-based build with custom x86_64 target
- Makefile for QEMU and Bochs testing
- GRUB ISO generation for multiboot2 boot
2025-12-26 14:20:39 -05:00