LtMicros

A little micro-kernel written in C++

Kernel physical memory organisation

     0x0 - 0x1000   GDT/IDT
  0x1000 - 0x2000   Kernel page directory
  0x2000 - 0xA0000  Kernel stack
 0xA0000 - 0x100000 Hardware area
0x100000 - 0x400000 Kernel code (loaded at this address by GRUB)
0x400000 - 0x800000 Kernel page table

Virtual address space organisation

General virtual address space

       0x0 - 0x40000000  Kernel address space (1Go)
0x40000000 - 0x100000000 User address space (3Go)

Kernel virtual address space

       0x0 - 0x800000    Identity mapping
  0x800000 - 0x1000000   Page Heap
 0x1000000 - 0x40000000  Heap
0x40000000 - 0x100000000 User space