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