kernel/arch/x86/mm/paging.c

   1 #include <mm/paging.h>
   2
   3 inline void slice_linear_addr(void *address, short *pde, short *pte, short *offset)
   4 {
   5         *pde = (int) address >> 22;
   6         *pte = ((int) address >> 12) & 0x3ff;
   7         *offset = (int) address & 0xfff;
   8 }
   9
  10 inline void enable_paging(struct page_directory_entry page_dir)
  11 {
  12         asm ("mov %0, %%eax; mov %%eax, %%cr3; mov %%cr0, %%eax; or $0x80000000, %%eax; mov %%eax, %%cr0": : "m" (page_dir) : "eax" );
  13 }