arch/x86/include/asm/pgtable-3level-defs.h
author Florian Westphal <fw@strlen.de>
Sun, 11 Jan 2009 20:20:11 +0100
changeset 0 aa628870c1d3
permissions -rw-r--r--
Port of Linux 2.6.28 for use with network simulation cradle.

#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H

#ifdef CONFIG_PARAVIRT
#define SHARED_KERNEL_PMD	(pv_info.shared_kernel_pmd)
#else
#define SHARED_KERNEL_PMD	1
#endif

/*
 * PGDIR_SHIFT determines what a top-level page table entry can map
 */
#define PGDIR_SHIFT	30
#define PTRS_PER_PGD	4

/*
 * PMD_SHIFT determines the size of the area a middle-level
 * page table can map
 */
#define PMD_SHIFT	21
#define PTRS_PER_PMD	512

/*
 * entries per page directory level
 */
#define PTRS_PER_PTE	512

#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */