1/* 2 * Copyright 2010, Ingo Weinhold, ingo_weinhold@gmx.de. 3 * Distributed under the terms of the MIT License. 4 */ 5#ifndef KERNEL_ARCH_X86_PAGING_PAE_PAGING_H 6#define KERNEL_ARCH_X86_PAGING_PAE_PAGING_H 7 8 9#include <OS.h> 10 11 12#if B_HAIKU_PHYSICAL_BITS == 64 13 14 15// page directory pointer table entry bits 16#define X86_PAE_PDPTE_PRESENT 0x0000000000000001LL 17#define X86_PAE_PDPTE_WRITE_THROUGH 0x0000000000000008LL 18#define X86_PAE_PDPTE_CACHING_DISABLED 0x0000000000000010LL 19#define X86_PAE_PDPTE_ADDRESS_MASK 0x000ffffffffff000LL 20 21// page directory entry bits 22#define X86_PAE_PDE_PRESENT 0x0000000000000001LL 23#define X86_PAE_PDE_WRITABLE 0x0000000000000002LL 24#define X86_PAE_PDE_USER 0x0000000000000004LL 25#define X86_PAE_PDE_WRITE_THROUGH 0x0000000000000008LL 26#define X86_PAE_PDE_CACHING_DISABLED 0x0000000000000010LL 27#define X86_PAE_PDE_ACCESSED 0x0000000000000020LL 28#define X86_PAE_PDE_IGNORED1 0x0000000000000040LL 29#define X86_PAE_PDE_LARGE_PAGE 0x0000000000000080LL 30#define X86_PAE_PDE_IGNORED2 0x0000000000000100LL 31#define X86_PAE_PDE_IGNORED3 0x0000000000000200LL 32#define X86_PAE_PDE_IGNORED4 0x0000000000000400LL 33#define X86_PAE_PDE_IGNORED5 0x0000000000000800LL 34#define X86_PAE_PDE_ADDRESS_MASK 0x000ffffffffff000LL 35#define X86_PAE_PDE_NOT_EXECUTABLE 0x8000000000000000LL 36 37// page table entry bits 38#define X86_PAE_PTE_PRESENT 0x0000000000000001LL 39#define X86_PAE_PTE_WRITABLE 0x0000000000000002LL 40#define X86_PAE_PTE_USER 0x0000000000000004LL 41#define X86_PAE_PTE_WRITE_THROUGH 0x0000000000000008LL 42#define X86_PAE_PTE_CACHING_DISABLED 0x0000000000000010LL 43#define X86_PAE_PTE_ACCESSED 0x0000000000000020LL 44#define X86_PAE_PTE_DIRTY 0x0000000000000040LL 45#define X86_PAE_PTE_PAT 0x0000000000000080LL 46#define X86_PAE_PTE_GLOBAL 0x0000000000000100LL 47#define X86_PAE_PTE_IGNORED1 0x0000000000000200LL 48#define X86_PAE_PTE_IGNORED2 0x0000000000000400LL 49#define X86_PAE_PTE_IGNORED3 0x0000000000000800LL 50#define X86_PAE_PTE_ADDRESS_MASK 0x000ffffffffff000LL 51#define X86_PAE_PTE_NOT_EXECUTABLE 0x8000000000000000LL 52#define X86_PAE_PTE_PROTECTION_MASK (X86_PAE_PTE_NOT_EXECUTABLE \ 53 |X86_PAE_PTE_WRITABLE \ 54 | X86_PAE_PTE_USER) 55#define X86_PAE_PTE_MEMORY_TYPE_MASK (X86_PAE_PTE_WRITE_THROUGH \ 56 | X86_PAE_PTE_CACHING_DISABLED) 57 58 59static const uint32 kPAEPageDirEntryCount = 512; 60static const uint32 kPAEPageTableEntryCount = 512; 61static const size_t kPAEPageTableRange = kPAEPageTableEntryCount * B_PAGE_SIZE; 62static const size_t kPAEPageDirRange 63 = kPAEPageDirEntryCount * kPAEPageTableRange; 64 65 66typedef uint64 pae_page_directory_pointer_table_entry; 67typedef uint64 pae_page_directory_entry; 68typedef uint64 pae_page_table_entry; 69 70 71#endif // B_HAIKU_PHYSICAL_BITS == 64 72 73 74#endif // KERNEL_ARCH_X86_PAGING_PAE_PAGING_H 75