arm64: KVM: define HYP and Stage-2 translation page flags

[firefly-linux-kernel-4.4.55.git] / arch / arm64 / include / asm / pgtable-hwdef.h

diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index 75fd13d289b93193f261c89fa83fb6973738f6f2..66367c6c6527b7e6307ed25952364ee3541d659f 100644 (file)
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -35,6 +35,7 @@
 /*
  * Section
  */
+#define PMD_SECT_USER          (_AT(pteval_t, 1) << 6)         /* AP[1] */
 #define PMD_SECT_S             (_AT(pmdval_t, 3) << 8)
 #define PMD_SECT_AF            (_AT(pmdval_t, 1) << 10)
 #define PMD_SECT_NG            (_AT(pmdval_t, 1) << 11)
@@ -67,6 +68,24 @@
 #define PTE_ATTRINDX(t)                (_AT(pteval_t, (t)) << 2)
 #define PTE_ATTRINDX_MASK      (_AT(pteval_t, 7) << 2)
 
+/*
+ * 2nd stage PTE definitions
+ */
+#define PTE_S2_RDONLY          (_AT(pteval_t, 1) << 6)   /* HAP[2:1] */
+#define PTE_S2_RDWR            (_AT(pteval_t, 3) << 6)   /* HAP[2:1] */
+
+/*
+ * Memory Attribute override for Stage-2 (MemAttr[3:0])
+ */
+#define PTE_S2_MEMATTR(t)      (_AT(pteval_t, (t)) << 2)
+#define PTE_S2_MEMATTR_MASK    (_AT(pteval_t, 0xf) << 2)
+
+/*
+ * EL2/HYP PTE/PMD definitions
+ */
+#define PMD_HYP                        PMD_SECT_USER
+#define PTE_HYP                        PTE_USER
+
 /*
  * 40-bit physical address supported.
  */