diff options
Diffstat (limited to 'arch/arm64/mm/mmap.c')
| -rw-r--r-- | arch/arm64/mm/mmap.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c index 642bdf908b22..7e3ad97e27d8 100644 --- a/arch/arm64/mm/mmap.c +++ b/arch/arm64/mm/mmap.c @@ -102,6 +102,17 @@ pgprot_t vm_get_page_prot(unsigned long vm_flags) if (vm_flags & VM_MTE) prot |= PTE_ATTRINDX(MT_NORMAL_TAGGED); +#ifdef CONFIG_ARCH_HAS_PKEYS + if (system_supports_poe()) { + if (vm_flags & VM_PKEY_BIT0) + prot |= PTE_PO_IDX_0; + if (vm_flags & VM_PKEY_BIT1) + prot |= PTE_PO_IDX_1; + if (vm_flags & VM_PKEY_BIT2) + prot |= PTE_PO_IDX_2; + } +#endif + return __pgprot(prot); } EXPORT_SYMBOL(vm_get_page_prot); |