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-rw-r--r--arch/arm64/mm/mmap.c11
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);