diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index c9619f6..cccb286 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -117,6 +117,8 @@
 #define ID_AA64PFR0_SVE_SHIFT	U(32)
 #define ID_AA64PFR0_SVE_MASK	ULL(0xf)
 #define ID_AA64PFR0_SVE_LENGTH	U(4)
+#define ID_AA64PFR0_MPAM_SHIFT	U(40)
+#define ID_AA64PFR0_MPAM_MASK	ULL(0xf)
 #define ID_AA64PFR0_CSV2_SHIFT	U(56)
 #define ID_AA64PFR0_CSV2_MASK	ULL(0xf)
 #define ID_AA64PFR0_CSV2_LENGTH	U(4)
@@ -658,6 +660,14 @@
 #define PMBLIMITR_EL1		S3_0_C9_C10_0
 
 /*******************************************************************************
+ * Definitions for system register interface to MPAM
+ ******************************************************************************/
+#define MPAMIDR_EL1		S3_0_C10_C4_4
+#define MPAM2_EL2		S3_4_C10_C5_0
+#define MPAMHCR_EL2		S3_4_C10_C4_0
+#define MPAM3_EL3		S3_6_C10_C5_0
+
+/*******************************************************************************
  * Definitions for system register interface to AMU for ARMv8.4 onwards
  ******************************************************************************/
 #define AMCR_EL0		S3_3_C13_C2_0
@@ -722,6 +732,11 @@
 #define AMCGCR_EL0_CG1NC_LENGTH	U(8)
 #define AMCGCR_EL0_CG1NC_MASK	U(0xff)
 
+/* MPAM register definitions */
+#define MPAM3_EL3_MPAMEN_BIT		(ULL(1) << 63)
+
+#define MPAMIDR_HAS_HCR_BIT		(ULL(1) << 17)
+
 /*******************************************************************************
  * RAS system registers
  *******************************************************************************/
diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h
index 58ec943..8e82dbd 100644
--- a/include/lib/aarch64/arch_helpers.h
+++ b/include/lib/aarch64/arch_helpers.h
@@ -328,6 +328,11 @@
 DEFINE_RENAME_SYSREG_RW_FUNCS(amcntenclr1_el0, AMCNTENCLR1_EL0)
 DEFINE_RENAME_SYSREG_RW_FUNCS(amcntenset1_el0, AMCNTENSET1_EL0)
 
+DEFINE_RENAME_SYSREG_READ_FUNC(mpamidr_el1, MPAMIDR_EL1)
+DEFINE_RENAME_SYSREG_RW_FUNCS(mpam3_el3, MPAM3_EL3)
+DEFINE_RENAME_SYSREG_RW_FUNCS(mpam2_el2, MPAM2_EL2)
+DEFINE_RENAME_SYSREG_RW_FUNCS(mpamhcr_el2, MPAMHCR_EL2)
+
 DEFINE_RENAME_SYSREG_RW_FUNCS(pmblimitr_el1, PMBLIMITR_EL1)
 
 DEFINE_RENAME_SYSREG_WRITE_FUNC(zcr_el3, ZCR_EL3)
diff --git a/include/lib/extensions/mpam.h b/include/lib/extensions/mpam.h
new file mode 100644
index 0000000..571b96b
--- /dev/null
+++ b/include/lib/extensions/mpam.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MPAM_H
+#define MPAM_H
+
+#include <stdbool.h>
+
+bool mpam_supported(void);
+void mpam_enable(int el2_unused);
+
+#endif /* MPAM_H */