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Diffstat (limited to 'arch/arm64/include/asm/pgtable-hwdef.h')
-rw-r--r--arch/arm64/include/asm/pgtable-hwdef.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 42442a0ae2ab..e64e77a345b2 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -94,6 +94,15 @@
/*
* Hardware page table definitions.
*
+ * Level 0 descriptor (P4D).
+ */
+#define P4D_TYPE_TABLE (_AT(p4dval_t, 3) << 0)
+#define P4D_TABLE_BIT (_AT(p4dval_t, 1) << 1)
+#define P4D_TYPE_MASK (_AT(p4dval_t, 3) << 0)
+#define P4D_TYPE_SECT (_AT(p4dval_t, 1) << 0)
+#define P4D_SECT_RDONLY (_AT(p4dval_t, 1) << 7) /* AP[2] */
+
+/*
* Level 1 descriptor (PUD).
*/
#define PUD_TYPE_TABLE (_AT(pudval_t, 3) << 0)