Jeremy Fitzhardinge | fb35514 | 2009-02-08 18:50:52 -0800 | [diff] [blame] | 1 | #ifndef _ASM_X86_PGTABLE_64_DEFS_H |
| 2 | #define _ASM_X86_PGTABLE_64_DEFS_H |
| 3 | |
H. Peter Anvin | 8170e6b | 2013-01-24 12:19:52 -0800 | [diff] [blame] | 4 | #include <asm/sparsemem.h> |
| 5 | |
Jeremy Fitzhardinge | 54321d9 | 2009-02-11 10:20:05 -0800 | [diff] [blame] | 6 | #ifndef __ASSEMBLY__ |
| 7 | #include <linux/types.h> |
Thomas Garnier | a95ae27 | 2016-06-21 17:47:04 -0700 | [diff] [blame] | 8 | #include <asm/kaslr.h> |
Jeremy Fitzhardinge | 54321d9 | 2009-02-11 10:20:05 -0800 | [diff] [blame] | 9 | |
| 10 | /* |
| 11 | * These are used to make use of C type-checking.. |
| 12 | */ |
| 13 | typedef unsigned long pteval_t; |
| 14 | typedef unsigned long pmdval_t; |
| 15 | typedef unsigned long pudval_t; |
| 16 | typedef unsigned long pgdval_t; |
| 17 | typedef unsigned long pgprotval_t; |
| 18 | |
| 19 | typedef struct { pteval_t pte; } pte_t; |
| 20 | |
| 21 | #endif /* !__ASSEMBLY__ */ |
| 22 | |
Jeremy Fitzhardinge | fb35514 | 2009-02-08 18:50:52 -0800 | [diff] [blame] | 23 | #define SHARED_KERNEL_PMD 0 |
Jeremy Fitzhardinge | fb35514 | 2009-02-08 18:50:52 -0800 | [diff] [blame] | 24 | |
| 25 | /* |
| 26 | * PGDIR_SHIFT determines what a top-level page table entry can map |
| 27 | */ |
| 28 | #define PGDIR_SHIFT 39 |
| 29 | #define PTRS_PER_PGD 512 |
| 30 | |
| 31 | /* |
| 32 | * 3rd level page |
| 33 | */ |
| 34 | #define PUD_SHIFT 30 |
| 35 | #define PTRS_PER_PUD 512 |
| 36 | |
| 37 | /* |
| 38 | * PMD_SHIFT determines the size of the area a middle-level |
| 39 | * page table can map |
| 40 | */ |
| 41 | #define PMD_SHIFT 21 |
| 42 | #define PTRS_PER_PMD 512 |
| 43 | |
| 44 | /* |
| 45 | * entries per page directory level |
| 46 | */ |
| 47 | #define PTRS_PER_PTE 512 |
| 48 | |
| 49 | #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) |
| 50 | #define PMD_MASK (~(PMD_SIZE - 1)) |
| 51 | #define PUD_SIZE (_AC(1, UL) << PUD_SHIFT) |
| 52 | #define PUD_MASK (~(PUD_SIZE - 1)) |
| 53 | #define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) |
| 54 | #define PGDIR_MASK (~(PGDIR_SIZE - 1)) |
| 55 | |
Rik van Riel | c898faf | 2009-05-05 17:28:56 -0400 | [diff] [blame] | 56 | /* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */ |
Thomas Garnier | a95ae27 | 2016-06-21 17:47:04 -0700 | [diff] [blame] | 57 | #define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL) |
| 58 | #define VMALLOC_SIZE_TB _AC(32, UL) |
| 59 | #define __VMALLOC_BASE _AC(0xffffc90000000000, UL) |
Thomas Garnier | 25dfe47 | 2016-07-27 08:59:56 -0700 | [diff] [blame] | 60 | #define __VMEMMAP_BASE _AC(0xffffea0000000000, UL) |
Thomas Garnier | a95ae27 | 2016-06-21 17:47:04 -0700 | [diff] [blame] | 61 | #ifdef CONFIG_RANDOMIZE_MEMORY |
| 62 | #define VMALLOC_START vmalloc_base |
Thomas Garnier | 25dfe47 | 2016-07-27 08:59:56 -0700 | [diff] [blame] | 63 | #define VMEMMAP_START vmemmap_base |
Thomas Garnier | a95ae27 | 2016-06-21 17:47:04 -0700 | [diff] [blame] | 64 | #else |
| 65 | #define VMALLOC_START __VMALLOC_BASE |
Thomas Garnier | 25dfe47 | 2016-07-27 08:59:56 -0700 | [diff] [blame] | 66 | #define VMEMMAP_START __VMEMMAP_BASE |
Thomas Garnier | a95ae27 | 2016-06-21 17:47:04 -0700 | [diff] [blame] | 67 | #endif /* CONFIG_RANDOMIZE_MEMORY */ |
| 68 | #define VMALLOC_END (VMALLOC_START + _AC((VMALLOC_SIZE_TB << 40) - 1, UL)) |
Kees Cook | 6145cfe | 2013-10-10 17:18:18 -0700 | [diff] [blame] | 69 | #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE) |
Jeremy Fitzhardinge | fb35514 | 2009-02-08 18:50:52 -0800 | [diff] [blame] | 70 | #define MODULES_END _AC(0xffffffffff000000, UL) |
| 71 | #define MODULES_LEN (MODULES_END - MODULES_VADDR) |
H. Peter Anvin | 3891a04 | 2014-04-29 16:46:09 -0700 | [diff] [blame] | 72 | #define ESPFIX_PGD_ENTRY _AC(-2, UL) |
| 73 | #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT) |
Mathias Krause | 8266e31 | 2014-09-21 17:26:54 +0200 | [diff] [blame] | 74 | #define EFI_VA_START ( -4 * (_AC(1, UL) << 30)) |
| 75 | #define EFI_VA_END (-68 * (_AC(1, UL) << 30)) |
Jeremy Fitzhardinge | fb35514 | 2009-02-08 18:50:52 -0800 | [diff] [blame] | 76 | |
H. Peter Anvin | 8170e6b | 2013-01-24 12:19:52 -0800 | [diff] [blame] | 77 | #define EARLY_DYNAMIC_PAGE_TABLES 64 |
| 78 | |
Jeremy Fitzhardinge | fb35514 | 2009-02-08 18:50:52 -0800 | [diff] [blame] | 79 | #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ |