Merge tag 'seabios-20211203-pull-request' of git://git.kraxel.org/qemu into staging
[qemu.git] / linux-headers / asm-x86 / mman.h
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _ASM_X86_MMAN_H
3 #define _ASM_X86_MMAN_H
4
5 #define MAP_32BIT 0x40 /* only give out 32bit addresses */
6
7 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
8 /*
9 * Take the 4 protection key bits out of the vma->vm_flags
10 * value and turn them in to the bits that we can put in
11 * to a pte.
12 *
13 * Only override these if Protection Keys are available
14 * (which is only on 64-bit).
15 */
16 #define arch_vm_get_page_prot(vm_flags) __pgprot( \
17 ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \
18 ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \
19 ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \
20 ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0))
21
22 #define arch_calc_vm_prot_bits(prot, key) ( \
23 ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \
24 ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \
25 ((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \
26 ((key) & 0x8 ? VM_PKEY_BIT3 : 0))
27 #endif
28
29 #include <asm-generic/mman.h>
30
31 #endif /* _ASM_X86_MMAN_H */