1 files changed, 0 insertions, 42 deletions
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 91d31ac422d6..ac57259a432b 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -412,51 +412,9 @@ static int __init efi_update_mem_attr(struct mm_struct *mm, efi_memory_desc_t *m
 
 void __init efi_runtime_update_mappings(void)
 {
-	efi_memory_desc_t *md;
-
-	/*
-	 * Use the EFI Memory Attribute Table for mapping permissions if it
-	 * exists, since it is intended to supersede EFI_PROPERTIES_TABLE.
-	 */
 	if (efi_enabled(EFI_MEM_ATTR)) {
 		efi_disable_ibt_for_runtime = false;
 		efi_memattr_apply_permissions(NULL, efi_update_mem_attr);
-		return;
-	}
-
-	/*
-	 * EFI_MEMORY_ATTRIBUTES_TABLE is intended to replace
-	 * EFI_PROPERTIES_TABLE. So, use EFI_PROPERTIES_TABLE to update
-	 * permissions only if EFI_MEMORY_ATTRIBUTES_TABLE is not
-	 * published by the firmware. Even if we find a buggy implementation of
-	 * EFI_MEMORY_ATTRIBUTES_TABLE, don't fall back to
-	 * EFI_PROPERTIES_TABLE, because of the same reason.
-	 */
-
-	if (!efi_enabled(EFI_NX_PE_DATA))
-		return;
-
-	for_each_efi_memory_desc(md) {
-		unsigned long pf = 0;
-
-		if (!(md->attribute & EFI_MEMORY_RUNTIME))
-			continue;
-
-		if (!(md->attribute & EFI_MEMORY_WB))
-			pf |= _PAGE_PCD;
-
-		if ((md->attribute & EFI_MEMORY_XP) ||
-			(md->type == EFI_RUNTIME_SERVICES_DATA))
-			pf |= _PAGE_NX;
-
-		if (!(md->attribute & EFI_MEMORY_RO) &&
-			(md->type != EFI_RUNTIME_SERVICES_CODE))
-			pf |= _PAGE_RW;
-
-		if (cc_platform_has(CC_ATTR_GUEST_MEM_ENCRYPT))
-			pf |= _PAGE_ENC;
-
-		efi_update_mappings(md, pf);
 	}
 }