| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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| 2 | #ifndef _ASM_X86_MMAN_H |
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| 3 | #define _ASM_X86_MMAN_H |
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| 4 | |
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| 5 | #define MAP_32BIT 0x40 /* only give out 32bit addresses */ |
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| 6 | |
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| 7 | #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS |
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| 8 | /* |
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| 9 | * Take the 4 protection key bits out of the vma->vm_flags |
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| 10 | * value and turn them in to the bits that we can put in |
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| 11 | * to a pte. |
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| 12 | * |
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| 13 | * Only override these if Protection Keys are available |
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| 14 | * (which is only on 64-bit). |
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| 15 | */ |
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| 16 | #define arch_vm_get_page_prot(vm_flags) __pgprot( \ |
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| 17 | ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \ |
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| 18 | ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \ |
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| 19 | ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \ |
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| 20 | ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0)) |
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| 21 | |
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| 22 | #define arch_calc_vm_prot_bits(prot, key) ( \ |
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| 23 | ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \ |
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| 24 | ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \ |
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| 25 | ((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \ |
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| 26 | ((key) & 0x8 ? VM_PKEY_BIT3 : 0)) |
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| 27 | #endif |
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| 28 | |
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| 29 | #include <asm-generic/mman.h> |
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| 30 | |
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| 31 | #endif /* _ASM_X86_MMAN_H */ |
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| 32 | |
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