Aarch64: Add support for FEAT_MTE3
This patch provides the following changes:
- Adds definition for FEAT_MTE3 value in ID_AA64PFR1_EL1 register
- Enables Memory Tagging Extension for FEAT_MTE3.
Change-Id: I735988575466fdc083892ec12c1aee89b5faa472
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
diff --git a/include/arch/aarch64/arch.h b/include/arch/aarch64/arch.h
index 33e1134..2518e5c 100644
--- a/include/arch/aarch64/arch.h
+++ b/include/arch/aarch64/arch.h
@@ -266,9 +266,17 @@
#define ID_AA64PFR1_EL1_MTE_SHIFT U(8)
#define ID_AA64PFR1_EL1_MTE_MASK ULL(0xf)
-#define MTE_UNIMPLEMENTED ULL(0)
-#define MTE_IMPLEMENTED_EL0 ULL(1) /* MTE is only implemented at EL0 */
-#define MTE_IMPLEMENTED_ELX ULL(2) /* MTE is implemented at all ELs */
+/* Memory Tagging Extension is not implemented */
+#define MTE_UNIMPLEMENTED U(0)
+/* FEAT_MTE: MTE instructions accessible at EL0 are implemented */
+#define MTE_IMPLEMENTED_EL0 U(1)
+/* FEAT_MTE2: Full MTE is implemented */
+#define MTE_IMPLEMENTED_ELX U(2)
+/*
+ * FEAT_MTE3: MTE is implemented with support for
+ * asymmetric Tag Check Fault handling
+ */
+#define MTE_IMPLEMENTED_ASY U(3)
#define ID_AA64PFR1_MPAM_FRAC_SHIFT ULL(16)
#define ID_AA64PFR1_MPAM_FRAC_MASK ULL(0xf)