pgtable-3level-defs.h 565 B

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  1. #ifndef _I386_PGTABLE_3LEVEL_DEFS_H
  2. #define _I386_PGTABLE_3LEVEL_DEFS_H
  3. #ifdef CONFIG_PARAVIRT
  4. #define SHARED_KERNEL_PMD (paravirt_ops.shared_kernel_pmd)
  5. #else
  6. #define SHARED_KERNEL_PMD 1
  7. #endif
  8. /*
  9. * PGDIR_SHIFT determines what a top-level page table entry can map
  10. */
  11. #define PGDIR_SHIFT 30
  12. #define PTRS_PER_PGD 4
  13. /*
  14. * PMD_SHIFT determines the size of the area a middle-level
  15. * page table can map
  16. */
  17. #define PMD_SHIFT 21
  18. #define PTRS_PER_PMD 512
  19. /*
  20. * entries per page directory level
  21. */
  22. #define PTRS_PER_PTE 512
  23. #endif /* _I386_PGTABLE_3LEVEL_DEFS_H */