diff --git a/Makefile b/Makefile
index 95c9075..da3e493 100644
--- a/Makefile
+++ b/Makefile
@@ -263,24 +263,6 @@
 # Determine if FEAT_SB is supported
 ENABLE_FEAT_SB		=	$(if $(findstring sb,${arch-features}),1,0)
 
-ifeq "8.5" "$(word 1, $(sort 8.5 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
-ENABLE_FEAT_SB		= 	1
-endif
-
-# Determine and enable FEAT_FGT to access HDFGRTR_EL2 register for v8.6 and higher versions.
-ifeq "8.6" "$(word 1, $(sort 8.6 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
-ENABLE_FEAT_FGT		=	1
-endif
-
-# Determine and enable FEAT_ECV to access CNTPOFF_EL2 register for v8.6 and higher versions.
-ifeq "8.6" "$(word 1, $(sort 8.6 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
-ENABLE_FEAT_ECV		=	1
-endif
-
-ifeq "8.4" "$(word 1, $(sort 8.4 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
-ENABLE_FEAT_DIT		= 	1
-endif
-
 ifneq ($(findstring armclang,$(notdir $(CC))),)
 TF_CFLAGS_aarch32	=	-target arm-arm-none-eabi $(march32-directive)
 TF_CFLAGS_aarch64	=	-target aarch64-arm-none-eabi $(march64-directive)
@@ -467,13 +449,10 @@
 DTC_CPPFLAGS		+=	-P -nostdinc -Iinclude -Ifdts -undef \
 				-x assembler-with-cpp $(DEFINES)
 
-ifeq ($(MEASURED_BOOT),1)
-DTC_CPPFLAGS		+=	-DMEASURED_BOOT -DBL2_HASH_SIZE=${TCG_DIGEST_SIZE}
-endif
-
 ################################################################################
 # Common sources and include directories
 ################################################################################
+include ${MAKE_HELPERS_DIRECTORY}arch_features.mk
 include lib/compiler-rt/compiler-rt.mk
 
 BL_COMMON_SOURCES	+=	common/bl_common.c			\
@@ -776,6 +755,10 @@
     $(info PSA_FWU_SUPPORT is an experimental feature)
 endif
 
+ifeq ($(FEATURE_DETECTION),1)
+    $(info FEATURE_DETECTION is an experimental feature)
+endif
+
 ifeq (${ARM_XLAT_TABLES_LIB_V1}, 1)
     ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
         $(error "ALLOW_RO_XLAT_TABLES requires translation tables library v2")
@@ -980,10 +963,7 @@
         CREATE_KEYS \
         CTX_INCLUDE_AARCH32_REGS \
         CTX_INCLUDE_FPREGS \
-        CTX_INCLUDE_PAUTH_REGS \
-        CTX_INCLUDE_MTE_REGS \
         CTX_INCLUDE_EL2_REGS \
-        CTX_INCLUDE_NEVE_REGS \
         DEBUG \
         DISABLE_MTPMU \
         DYN_DISABLE_AUTH \
@@ -993,11 +973,9 @@
         ENABLE_AMU_FCONF \
         AMU_RESTRICT_COUNTERS \
         ENABLE_ASSERTIONS \
-        ENABLE_MPAM_FOR_LOWER_ELS \
         ENABLE_PIE \
         ENABLE_PMF \
         ENABLE_PSCI_STAT \
-        ENABLE_RME \
         ENABLE_RUNTIME_INSTRUMENTATION \
         ENABLE_SME_FOR_NS \
         ENABLE_SME_FOR_SWD \
@@ -1017,7 +995,6 @@
         PL011_GENERIC_UART \
         PROGRAMMABLE_RESET_ADDRESS \
         PSCI_EXTENDED_STATE_ID \
-        RAS_EXTENSION \
         RESET_TO_BL31 \
         SAVE_KEYS \
         SEPARATE_CODE_AND_RODATA \
@@ -1046,20 +1023,13 @@
         RAS_TRAP_LOWER_EL_ERR_ACCESS \
         COT_DESC_IN_DTB \
         USE_SP804_TIMER \
-        ENABLE_FEAT_RNG \
-        ENABLE_FEAT_SB \
-        ENABLE_FEAT_DIT \
         PSA_FWU_SUPPORT \
         ENABLE_TRBE_FOR_NS \
         ENABLE_SYS_REG_TRACE_FOR_NS \
-        ENABLE_TRF_FOR_NS \
-        ENABLE_FEAT_HCX \
         ENABLE_MPMM \
         ENABLE_MPMM_FCONF \
-        ENABLE_FEAT_FGT \
-        ENABLE_FEAT_AMUv1 \
-        ENABLE_FEAT_ECV \
         SIMICS_BUILD \
+        FEATURE_DETECTION \
 )))
 
 $(eval $(call assert_numerics,\
@@ -1067,9 +1037,30 @@
         ARM_ARCH_MAJOR \
         ARM_ARCH_MINOR \
         BRANCH_PROTECTION \
+        CTX_INCLUDE_PAUTH_REGS \
+        CTX_INCLUDE_MTE_REGS \
+        CTX_INCLUDE_NEVE_REGS \
+        ENABLE_BTI \
+        ENABLE_PAUTH \
+        ENABLE_FEAT_AMUv1 \
+        ENABLE_FEAT_AMUv1p1 \
+        ENABLE_FEAT_CSV2_2 \
+        ENABLE_FEAT_DIT \
+        ENABLE_FEAT_ECV \
+        ENABLE_FEAT_FGT \
+        ENABLE_FEAT_HCX \
+        ENABLE_FEAT_PAN \
+        ENABLE_FEAT_RNG \
+        ENABLE_FEAT_SB \
+        ENABLE_FEAT_SEL2 \
+        ENABLE_FEAT_VHE \
+        ENABLE_MPAM_FOR_LOWER_ELS \
+        ENABLE_RME \
+        ENABLE_TRF_FOR_NS \
         FW_ENC_STATUS \
         NR_OF_FW_BANKS \
         NR_OF_IMAGES_IN_FW_BANK \
+        RAS_EXTENSION \
 )))
 
 ifdef KEY_SIZE
@@ -1179,6 +1170,12 @@
         ENABLE_FEAT_AMUv1 \
         ENABLE_FEAT_ECV \
         SIMICS_BUILD \
+        ENABLE_FEAT_AMUv1p1 \
+        ENABLE_FEAT_SEL2 \
+        ENABLE_FEAT_VHE \
+        ENABLE_FEAT_CSV2_2 \
+        ENABLE_FEAT_PAN \
+        FEATURE_DETECTION \
 )))
 
 ifeq (${SANITIZE_UB},trap)
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index e751824..25c7964 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -128,6 +128,10 @@
 				${RMMD_SOURCES}
 endif
 
+ifeq ($(FEATURE_DETECTION),1)
+BL31_SOURCES		+=	common/feat_detect.c
+endif
+
 BL31_LINKERFILE		:=	bl31/bl31.ld.S
 
 # Flag used to indicate if Crash reporting via console should be included
diff --git a/bl31/bl31_main.c b/bl31/bl31_main.c
index 9ac10e2..2a3d838 100644
--- a/bl31/bl31_main.c
+++ b/bl31/bl31_main.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -14,6 +14,7 @@
 #include <bl31/ehf.h>
 #include <common/bl_common.h>
 #include <common/debug.h>
+#include <common/feat_detect.h>
 #include <common/runtime_svc.h>
 #include <drivers/console.h>
 #include <lib/el3_runtime/context_mgmt.h>
@@ -123,6 +124,11 @@
 	NOTICE("BL31: %s\n", version_string);
 	NOTICE("BL31: %s\n", build_message);
 
+#if FEATURE_DETECTION
+	/* Detect if features enabled during compilation are supported by PE. */
+	detect_arch_features();
+#endif /* FEATURE_DETECTION */
+
 #ifdef SUPPORT_UNKNOWN_MPID
 	if (unsupported_mpid_flag == 0) {
 		NOTICE("Unsupported MPID detected!\n");
@@ -253,7 +259,16 @@
 		(image_type == SECURE) ? "secure" : "normal");
 	print_entry_point_info(next_image_info);
 	cm_init_my_context(next_image_info);
-	cm_prepare_el3_exit(image_type);
+
+	/*
+	* If we are entering the Non-secure world, use
+	* 'cm_prepare_el3_exit_ns' to exit.
+	*/
+	if (image_type == NON_SECURE) {
+		cm_prepare_el3_exit_ns();
+	} else {
+		cm_prepare_el3_exit(image_type);
+	}
 }
 
 /*******************************************************************************
diff --git a/changelog.yaml b/changelog.yaml
index 939fb65..add81ef 100644
--- a/changelog.yaml
+++ b/changelog.yaml
@@ -442,6 +442,13 @@
             deprecated:
               - plat/st/stm32mp1
 
+      - title: Texas Instruments
+        scope: ti
+
+        subsections:
+          - title: K3
+            scope: k3
+
       - title: Xilinx
         scope: xilinx
 
diff --git a/common/feat_detect.c b/common/feat_detect.c
new file mode 100644
index 0000000..ef09b86
--- /dev/null
+++ b/common/feat_detect.c
@@ -0,0 +1,288 @@
+/*
+ * Copyright (c) 2022, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/feat_detect.h>
+
+/*******************************************************************************
+ * This section lists the wrapper modules for each feature to evaluate the
+ * feature states (FEAT_STATE_1 and FEAT_STATE_2) and perform necessary action
+ * as below:
+ *
+ * It verifies whether the FEAT_XXX (eg: FEAT_SB) is supported by the PE or not.
+ * Without this check an exception would occur during context save/restore
+ * routines, if the feature is enabled but not supported by PE.
+ ******************************************************************************/
+
+/******************************************
+ * Feature : FEAT_SB (Speculation Barrier)
+ *****************************************/
+static void read_feat_sb(void)
+{
+#if (ENABLE_FEAT_SB == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_0_feat_sb_present(), "SB");
+#endif
+}
+
+/******************************************************
+ * Feature : FEAT_CSV2_2 (Cache Speculation Variant 2)
+ *****************************************************/
+static void read_feat_csv2_2(void)
+{
+#if (ENABLE_FEAT_CSV2_2 == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_0_feat_csv2_2_present(), "CSV2_2");
+#endif
+}
+
+/***********************************************
+ * Feature : FEAT_PAN (Privileged Access Never)
+ **********************************************/
+static void read_feat_pan(void)
+{
+#if (ENABLE_FEAT_PAN == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_1_pan_present(), "PAN");
+#endif
+}
+
+/******************************************************
+ * Feature : FEAT_VHE (Virtualization Host Extensions)
+ *****************************************************/
+static void read_feat_vhe(void)
+{
+#if (ENABLE_FEAT_VHE == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_1_vhe_present(), "VHE");
+#endif
+}
+
+/*******************************************************************************
+ * Feature : FEAT_RAS (Reliability, Availability, and Serviceability Extension)
+ ******************************************************************************/
+static void read_feat_ras(void)
+{
+#if (RAS_EXTENSION == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_2_feat_ras_present(), "RAS");
+#endif
+}
+
+/************************************************
+ * Feature : FEAT_PAUTH (Pointer Authentication)
+ ***********************************************/
+static void read_feat_pauth(void)
+{
+#if (ENABLE_PAUTH == FEAT_STATE_1) || (CTX_INCLUDE_PAUTH_REGS == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_3_pauth_present(), "PAUTH");
+#endif
+}
+
+/************************************************************
+ * Feature : FEAT_DIT (Data Independent Timing Instructions)
+ ***********************************************************/
+static void read_feat_dit(void)
+{
+#if (ENABLE_FEAT_DIT == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_4_feat_dit_present(), "DIT");
+#endif
+}
+
+/*********************************************************
+ * Feature : FEAT_AMUv1 (Activity Monitors Extensions v1)
+ ********************************************************/
+static void read_feat_amuv1(void)
+{
+#if (ENABLE_FEAT_AMUv1 == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_4_feat_amuv1_present(), "AMUv1");
+#endif
+}
+
+/****************************************************************************
+ * Feature : FEAT_MPAM (Memory Partitioning and Monitoring (MPAM) Extension)
+ ***************************************************************************/
+static void read_feat_mpam(void)
+{
+#if (ENABLE_MPAM_FOR_LOWER_ELS == FEAT_STATE_1)
+	feat_detect_panic(get_mpam_version() != 0U, "MPAM");
+#endif
+}
+
+/**************************************************************
+ * Feature : FEAT_NV2 (Enhanced Nested Virtualization Support)
+ *************************************************************/
+static void read_feat_nv2(void)
+{
+#if (CTX_INCLUDE_NEVE_REGS == FEAT_STATE_1)
+	unsigned int nv = get_armv8_4_feat_nv_support();
+
+	feat_detect_panic((nv == ID_AA64MMFR2_EL1_NV2_SUPPORTED), "NV2");
+#endif
+}
+
+/***********************************
+ * Feature : FEAT_SEL2 (Secure EL2)
+ **********************************/
+static void read_feat_sel2(void)
+{
+#if (ENABLE_FEAT_SEL2 == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_4_sel2_present(), "SEL2");
+#endif
+}
+
+/****************************************************
+ * Feature : FEAT_TRF (Self-hosted Trace Extensions)
+ ***************************************************/
+static void read_feat_trf(void)
+{
+#if (ENABLE_TRF_FOR_NS == FEAT_STATE_1)
+	feat_detect_panic(is_arm8_4_feat_trf_present(), "TRF");
+#endif
+}
+
+/************************************************
+ * Feature : FEAT_MTE (Memory Tagging Extension)
+ ***********************************************/
+static void read_feat_mte(void)
+{
+#if (CTX_INCLUDE_MTE_REGS == FEAT_STATE_1)
+	unsigned int mte = get_armv8_5_mte_support();
+
+	feat_detect_panic((mte != MTE_UNIMPLEMENTED), "MTE");
+#endif
+}
+
+/***********************************************
+ * Feature : FEAT_RNG (Random Number Generator)
+ **********************************************/
+static void read_feat_rng(void)
+{
+#if (ENABLE_FEAT_RNG == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_5_rng_present(), "RNG");
+#endif
+}
+
+/****************************************************
+ * Feature : FEAT_BTI (Branch Target Identification)
+ ***************************************************/
+static void read_feat_bti(void)
+{
+#if (ENABLE_BTI == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_5_bti_present(), "BTI");
+#endif
+}
+
+/****************************************
+ * Feature : FEAT_FGT (Fine Grain Traps)
+ ***************************************/
+static void read_feat_fgt(void)
+{
+#if (ENABLE_FEAT_FGT == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_6_fgt_present(), "FGT");
+#endif
+}
+
+/***********************************************
+ * Feature : FEAT_AMUv1p1 (AMU Extensions v1.1)
+ **********************************************/
+static void read_feat_amuv1p1(void)
+{
+#if (ENABLE_FEAT_AMUv1p1 == FEAT_STATE_1)
+	feat_detect_panic(is_armv8_6_feat_amuv1p1_present(), "AMUv1p1");
+#endif
+}
+
+/*******************************************************
+ * Feature : FEAT_ECV (Enhanced Counter Virtualization)
+ ******************************************************/
+static void read_feat_ecv(void)
+{
+#if (ENABLE_FEAT_ECV == FEAT_STATE_1)
+	unsigned int ecv = get_armv8_6_ecv_support();
+
+	feat_detect_panic(((ecv == ID_AA64MMFR0_EL1_ECV_SUPPORTED) ||
+			(ecv == ID_AA64MMFR0_EL1_ECV_SELF_SYNCH)), "ECV");
+#endif
+}
+
+/******************************************************************
+ * Feature : FEAT_HCX (Extended Hypervisor Configuration Register)
+ *****************************************************************/
+static void read_feat_hcx(void)
+{
+#if (ENABLE_FEAT_HCX == FEAT_STATE_1)
+	feat_detect_panic(is_feat_hcx_present(), "HCX");
+#endif
+}
+
+/**************************************************
+ * Feature : FEAT_RME (Realm Management Extension)
+ *************************************************/
+static void read_feat_rme(void)
+{
+#if (ENABLE_RME == FEAT_STATE_1)
+	feat_detect_panic((get_armv9_2_feat_rme_support() !=
+			ID_AA64PFR0_FEAT_RME_NOT_SUPPORTED), "RME");
+#endif
+}
+
+/***********************************************************************************
+ * TF-A supports many Arm architectural features starting from arch version
+ * (8.0 till 8.7+). These features are mostly enabled through build flags. This
+ * mechanism helps in validating these build flags in the early boot phase
+ * either in BL1 or BL31 depending on the platform and assists in identifying
+ * and notifying the features which are enabled but not supported by the PE.
+ *
+ * It reads all the enabled features ID-registers and ensures the features
+ * are supported by the PE.
+ * In case if they aren't it stops booting at an early phase and logs the error
+ * messages, notifying the platforms about the features that are not supported.
+ *
+ * Further the procedure is implemented with a tri-state approach for each feature:
+ * ENABLE_FEAT_xxx = 0 : The feature is disabled statically at compile time
+ * ENABLE_FEAT_xxx = 1 : The feature is enabled and must be present in hardware.
+ *                       There will be panic if feature is not present at cold boot.
+ * ENABLE_FEAT_xxx = 2 : The feature is enabled but dynamically enabled at runtime
+ *                       depending on hardware capability.
+ *
+ * For better readability, state values are defined with macros namely:
+ * { FEAT_STATE_0, FEAT_STATE_1, FEAT_STATE_2 } taking values as their naming.
+ **********************************************************************************/
+void detect_arch_features(void)
+{
+	/* v8.0 features */
+	read_feat_sb();
+	read_feat_csv2_2();
+
+	/* v8.1 features */
+	read_feat_pan();
+	read_feat_vhe();
+
+	/* v8.2 features */
+	read_feat_ras();
+
+	/* v8.3 features */
+	read_feat_pauth();
+
+	/* v8.4 features */
+	read_feat_dit();
+	read_feat_amuv1();
+	read_feat_mpam();
+	read_feat_nv2();
+	read_feat_sel2();
+	read_feat_trf();
+
+	/* v8.5 features */
+	read_feat_mte();
+	read_feat_rng();
+	read_feat_bti();
+
+	/* v8.6 features */
+	read_feat_amuv1p1();
+	read_feat_fgt();
+	read_feat_ecv();
+
+	/* v8.7 features */
+	read_feat_hcx();
+
+	/* v9.2 features */
+	read_feat_rme();
+}
diff --git a/docs/design/cpu-specific-build-macros.rst b/docs/design/cpu-specific-build-macros.rst
index b7d1168..af0e769 100644
--- a/docs/design/cpu-specific-build-macros.rst
+++ b/docs/design/cpu-specific-build-macros.rst
@@ -298,13 +298,21 @@
 
 For Cortex-A78 AE, the following errata build flags are defined :
 
-- ``ERRATA_A78_AE_1941500`` : This applies errata 1941500 workaround to Cortex-A78
-   AE CPU. This needs to be enabled for revisions r0p0 and r0p1. This erratum is
-   still open.
+- ``ERRATA_A78_AE_1941500`` : This applies errata 1941500 workaround to
+   Cortex-A78 AE CPU. This needs to be enabled for revisions r0p0 and r0p1.
+   This erratum is still open.
 
-- ``ERRATA_A78_AE_1951502`` : This applies errata 1951502 workaround to Cortex-A78
-  AE CPU. This needs to be enabled for revisions r0p0 and r0p1. This erratum is
-  still open.
+- ``ERRATA_A78_AE_1951502`` : This applies errata 1951502 workaround to
+  Cortex-A78 AE CPU. This needs to be enabled for revisions r0p0 and r0p1. This
+  erratum is still open.
+
+- ``ERRATA_A78_AE_2376748`` : This applies errata 2376748 workaround to
+  Cortex-A78 AE CPU. This needs to be enabled for revisions r0p0 and r0p1. This
+  erratum is still open.
+
+- ``ERRATA_A78_AE_2395408`` : This applies errata 2395408 workaround to
+  Cortex-A78 AE CPU. This needs to be enabled for revisions r0p0 and r0p1. This
+  erratum is still open.
 
 For Neoverse N1, the following errata build flags are defined :
 
diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index adc05e6..4dbf5cb 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -174,14 +174,23 @@
    registers to be included when saving and restoring the CPU context. Default
    is 0.
 
--  ``CTX_INCLUDE_NEVE_REGS``: Boolean option that, when set to 1, will cause the
-   Armv8.4-NV registers to be saved/restored when entering/exiting an EL2
-   execution context. Default value is 0.
+-  ``CTX_INCLUDE_MTE_REGS``: Numeric value to include Memory Tagging Extension
+   registers in cpu context. This must be enabled, if the platform wants to use
+   this feature in the Secure world and MTE is enabled at ELX. This flag can
+   take values 0 to 2, to align with the ``FEATURE_DETECTION`` mechanism.
+   Default value is 0.
 
--  ``CTX_INCLUDE_PAUTH_REGS``: Boolean option that, when set to 1, enables
-   Pointer Authentication for Secure world. This will cause the ARMv8.3-PAuth
-   registers to be included when saving and restoring the CPU context as
-   part of world switch. Default value is 0.
+-  ``CTX_INCLUDE_NEVE_REGS``: Numeric value, when set will cause the Armv8.4-NV
+   registers to be saved/restored when entering/exiting an EL2 execution
+   context. This flag can take values 0 to 2, to align with the
+   ``FEATURE_DETECTION`` mechanism. Default value is 0.
+
+-  ``CTX_INCLUDE_PAUTH_REGS``: Numeric value to enable the Pointer
+   Authentication for Secure world. This will cause the ARMv8.3-PAuth registers
+   to be included when saving and restoring the CPU context as part of world
+   switch. This flag can take values 0 to 2, to align with ``FEATURE_DETECTION``
+   mechanism. Default value is 0.
+
    Note that Pointer Authentication is enabled for Non-secure world irrespective
    of the value of this flag if the CPU supports it.
 
@@ -246,42 +255,101 @@
    builds, but this behaviour can be overridden in each platform's Makefile or
    in the build command line.
 
--  ``ENABLE_FEAT_AMUv1``: Boolean option to enable access to the HAFGRTR_EL2
+-  ``ENABLE_FEAT_AMUv1``: Numeric value to enable access to the HAFGRTR_EL2
    (Hypervisor Activity Monitors Fine-Grained Read Trap Register) during EL2
-   to EL3 context save/restore operations. It is an optional feature available
-   on v8.4 and onwards and must be set to 1 alongside ``ENABLE_FEAT_FGT``, to
-   access the HAFGRTR_EL2 register. Defaults to ``0``.
+   to EL3 context save/restore operations. This flag can take the values 0 to 2,
+   to align with the ``FEATURE_DETECTION`` mechanism. It is an optional feature
+   available on v8.4 and onwards and must be set to either 1 or 2 alongside
+   ``ENABLE_FEAT_FGT``, to access the HAFGRTR_EL2 register.
+   Default value is ``0``.
 
--  ``ENABLE_FEAT_ECV``: Boolean option to enable support for the Enhanced Counter
+-  ``ENABLE_FEAT_AMUv1p1``: Numeric value to enable the ``FEAT_AMUv1p1``
+   extension. ``FEAT_AMUv1p1`` is an optional feature available on Arm v8.6
+   onwards. This flag can take the values 0 to 2, to align with the
+   ``FEATURE_DETECTION`` mechanism. Default value is ``0``.
+
+-  ``ENABLE_FEAT_CSV2_2``: Numeric value to enable the ``FEAT_CSV2_2``
+   extension. It allows access to the SCXTNUM_EL2 (Software Context Number)
+   register during EL2 context save/restore operations. ``FEAT_CSV2_2`` is an
+   optional feature available on Arm v8.0 onwards. This flag can take values
+   0 to 2, to align with the ``FEATURE_DETECTION`` mechanism.
+   Default value is ``0``.
+
+-  ``ENABLE_FEAT_DIT``: Numeric value to enable ``FEAT_DIT`` (Data Independent
+   Timing) extension. It allows setting the ``DIT`` bit of PSTATE in EL3.
+   ``FEAT_DIT`` is a mandatory  architectural feature and is enabled from v8.4
+   and upwards. This flag can take the values 0 to 2, to align  with the
+   ``FEATURE_DETECTION`` mechanism. Default value is ``0``.
+
+-  ``ENABLE_FEAT_ECV``: Numeric value to enable support for the Enhanced Counter
    Virtualization feature, allowing for access to the CNTPOFF_EL2 (Counter-timer
    Physical Offset register) during EL2 to EL3 context save/restore operations.
-   Its a mandatory architectural feature in Armv8.6 and defaults to ``1`` for
-   v8.6 or later CPUs.
+   Its a mandatory architectural feature and is enabled from v8.6 and upwards.
+   This flag can take the values 0 to 2, to align  with the ``FEATURE_DETECTION``
+   mechanism. Default value is ``0``.
 
--  ``ENABLE_FEAT_FGT``: Boolean option to enable support for FGT (Fine Grain Traps)
+-  ``ENABLE_FEAT_FGT``: Numeric value to enable support for FGT (Fine Grain Traps)
    feature allowing for access to the HDFGRTR_EL2 (Hypervisor Debug Fine-Grained
-   Read Trap Register)  during EL2 to EL3 context save/restore operations.
-   Its a mandatory architectural feature in Armv8.6 and defaults to ``1`` for
-   v8.6 or later CPUs.
+   Read Trap Register) during EL2 to EL3 context save/restore operations.
+   Its a mandatory architectural feature and is enabled from v8.6 and upwards.
+   This flag can take the values 0 to 2, to align  with the ``FEATURE_DETECTION``
+   mechanism. Default value is ``0``.
 
--  ``ENABLE_FEAT_HCX``: This option sets the bit SCR_EL3.HXEn in EL3 to allow
-   access to HCRX_EL2 (extended hypervisor control register) from EL2 as well as
-   adding HCRX_EL2 to the EL2 context save/restore operations.
+-  ``ENABLE_FEAT_HCX``: Numeric value to set the bit SCR_EL3.HXEn in EL3 to
+   allow access to HCRX_EL2 (extended hypervisor control register) from EL2 as
+   well as adding HCRX_EL2 to the EL2 context save/restore operations. Its a
+   mandatory architectural feature and is enabled from v8.7 and upwards. This
+   flag can take the values 0 to 2, to align  with the ``FEATURE_DETECTION``
+   mechanism. Default value is ``0``.
+
+-  ``ENABLE_FEAT_PAN``: Numeric value to enable the ``FEAT_PAN`` (Privileged
+   Access Never) extension. ``FEAT_PAN`` adds a bit to PSTATE, generating a
+   permission fault for any privileged data access from EL1/EL2 to virtual
+   memory address, accessible at EL0, provided (HCR_EL2.E2H=1). It is a
+   mandatory architectural feature and is enabled from v8.1 and upwards. This
+   flag can take values 0 to 2, to align  with the ``FEATURE_DETECTION``
+   mechanism. Default value is ``0``.
+
+-  ``ENABLE_FEAT_RNG``: Numeric value to enable the ``FEAT_RNG`` extension.
+   ``FEAT_RNG`` is an optional feature available on Arm v8.5 onwards. This
+   flag can take the values 0 to 2, to align with the ``FEATURE_DETECTION``
+   mechanism. Default is ``0``.
+
+-  ``ENABLE_FEAT_SB``: Numeric value to enable the ``FEAT_SB`` (Speculation
+   Barrier) extension allowing access to ``sb`` instruction. ``FEAT_SB`` is an
+   optional feature and defaults to ``0`` for pre-Armv8.5 CPUs but are mandatory
+   for Armv8.5 or later CPUs. This flag can take values 0 to 2, to align with
+   ``FEATURE_DETECTION`` mechanism. It is enabled from v8.5 and upwards and if
+   needed could be overidden from platforms explicitly. Default value is ``0``.
+
+-  ``ENABLE_FEAT_SEL2``: Numeric value to enable the ``FEAT_SEL2`` (Secure EL2)
+   extension. ``FEAT_SEL2`` is a mandatory feature available on Arm v8.4.
+   This flag can take values 0 to 2, to align with the ``FEATURE_DETECTION``
+   mechanism. Default is ``0``.
+
+-  ``ENABLE_FEAT_VHE``: Numeric value to enable the ``FEAT_VHE`` (Virtualization
+   Host Extensions) extension. It allows access to CONTEXTIDR_EL2 register
+   during EL2 context save/restore operations.``FEAT_VHE`` is a mandatory
+   architectural feature and is enabled from v8.1 and upwards. It can take
+   values 0 to 2, to align  with the ``FEATURE_DETECTION`` mechanism.
+   Default value is ``0``.
 
 -  ``ENABLE_LTO``: Boolean option to enable Link Time Optimization (LTO)
    support in GCC for TF-A. This option is currently only supported for
    AArch64. Default is 0.
 
--  ``ENABLE_MPAM_FOR_LOWER_ELS``: Boolean option to enable lower ELs to use MPAM
+-  ``ENABLE_MPAM_FOR_LOWER_ELS``: Numeric value to enable lower ELs to use MPAM
    feature. MPAM is an optional Armv8.4 extension that enables various memory
    system components and resources to define partitions; software running at
    various ELs can assign themselves to desired partition to control their
    performance aspects.
 
-   When this option is set to ``1``, EL3 allows lower ELs to access their own
-   MPAM registers without trapping into EL3. This option doesn't make use of
-   partitioning in EL3, however. Platform initialisation code should configure
-   and use partitions in EL3 as required. This option defaults to ``0``.
+   This flag can take values 0 to 2, to align  with the ``FEATURE_DETECTION``
+   mechanism. When this option is set to ``1`` or ``2``, EL3 allows lower ELs to
+   access their own MPAM registers without trapping into EL3. This option
+   doesn't make use of partitioning in EL3, however. Platform initialisation
+   code should configure and use partitions in EL3 as required. This option
+   defaults to ``0``.
 
 -  ``ENABLE_MPMM``: Boolean option to enable support for the Maximum Power
    Mitigation Mechanism supported by certain Arm cores, which allows the SoC
@@ -307,9 +375,10 @@
    be enabled. If ``ENABLE_PMF`` is set, the residency statistics are tracked in
    software.
 
-- ``ENABLE_RME``: Boolean option to enable support for the ARMv9 Realm
-   Management Extension. Default value is 0. This is currently an experimental
-   feature.
+- ``ENABLE_RME``: Numeric value to enable support for the ARMv9 Realm
+   Management Extension. This flag can take the values 0 to 2, to align with
+   the ``FEATURE_DETECTION`` mechanism. Default value is 0. This is currently
+   an experimental feature.
 
 -  ``ENABLE_RUNTIME_INSTRUMENTATION``: Boolean option to enable runtime
    instrumentation which injects timestamp collection points into TF-A to
@@ -352,8 +421,8 @@
 
 -  ``ENABLE_SVE_FOR_SWD``: Boolean option to enable SVE for the Secure world.
    SVE is an optional architectural feature for AArch64. Note that this option
-   requires ENABLE_SVE_FOR_NS to be enabled.  The default is 0 and it is
-   automatically disabled when the target architecture is AArch32.
+   requires ENABLE_SVE_FOR_NS to be enabled. The default is 0 and it
+   is automatically disabled when the target architecture is AArch32.
 
 -  ``ENABLE_STACK_PROTECTOR``: String option to enable the stack protection
    checks in GCC. Allowed values are "all", "strong", "default" and "none". The
@@ -399,6 +468,43 @@
    This feature is intended for testing purposes only, and is advisable to keep
    disabled for production images.
 
+-  ``FEATURE_DETECTION``: Boolean option to enable the architectural features
+   detection mechanism. It detects whether the Architectural features enabled
+   through feature specific build flags are supported by the PE or not by
+   validating them either at boot phase or at runtime based on the value
+   possessed by the feature flag (0 to 2) and report error messages at an early
+   stage.
+
+   This prevents and benefits us from EL3 runtime exceptions during context save
+   and restore routines guarded by these build flags. Henceforth validating them
+   before their usage provides more control on the actions taken under them.
+
+   The mechanism permits the build flags to take values 0, 1 or 2 and
+   evaluates them accordingly.
+
+   Lets consider ``ENABLE_FEAT_HCX``, build flag for ``FEAT_HCX`` as an example:
+
+   ::
+
+     ENABLE_FEAT_HCX = 0: Feature disabled statically at compile time.
+     ENABLE_FEAT_HCX = 1: Feature Enabled and the flag is validated at boottime.
+     ENABLE_FEAT_HCX = 2: Feature Enabled and the flag is validated at runtime.
+
+   In the above example, if the feature build flag, ``ENABLE_FEAT_HCX`` set to
+   0, feature is disabled statically during compilation. If it is defined as 1,
+   feature is validated, wherein FEAT_HCX is detected at boot time. In case not
+   implemented by the PE, a hard panic is generated. Finally, if the flag is set
+   to 2, feature is validated at runtime.
+
+   Note that the entire implementation is divided into two phases, wherein as
+   as part of phase-1 we are supporting the values 0,1. Value 2 is currently not
+   supported and is planned to be handled explicilty in phase-2 implementation.
+
+   FEATURE_DETECTION macro is disabled by default, and is currently an
+   experimental procedure. Platforms can explicitly make use of this by
+   mechanism, by enabling it to validate whether they have set their build flags
+   properly at an early phase.
+
 -  ``FIP_NAME``: This is an optional build option which specifies the FIP
    filename for the ``fip`` target. Default is ``fip.bin``.
 
@@ -588,9 +694,10 @@
    enabled on Arm platforms, the option ``ARM_RECOM_STATE_ID_ENC`` needs to be
    set to 1 as well.
 
--  ``RAS_EXTENSION``: When set to ``1``, enable Armv8.2 RAS features. RAS features
+-  ``RAS_EXTENSION``: Numeric value to enable Armv8.2 RAS features. RAS features
    are an optional extension for pre-Armv8.2 CPUs, but are mandatory for Armv8.2
-   or later CPUs.
+   or later CPUs. This flag can take the values 0 to 2, to align with the
+   ``FEATURE_DETECTION`` mechanism.
 
    When ``RAS_EXTENSION`` is set to ``1``, ``HANDLE_EA_EL3_FIRST`` must also be
    set to ``1``.
@@ -673,7 +780,7 @@
    firmware images have been loaded in memory, and the MMU and caches are
    turned off. Refer to the "Debugging options" section for more details.
 
--  ``SPMD_SPM_AT_SEL2`` : this boolean option is used jointly with the SPM
+-  ``SPMD_SPM_AT_SEL2`` : This boolean option is used jointly with the SPM
    Dispatcher option (``SPD=spmd``). When enabled (1) it indicates the SPMC
    component runs at the S-EL2 execution state provided by the Armv8.4-SecEL2
    extension. This is the default when enabling the SPM Dispatcher. When
@@ -851,9 +958,10 @@
   but unused). This feature is available if trace unit such as ETMv4.x, and
   ETE(extending ETM feature) is implemented. This flag is disabled by default.
 
-- ``ENABLE_TRF_FOR_NS``: Boolean option to enable trace filter control registers
+- ``ENABLE_TRF_FOR_NS``: Numeric value to enable trace filter control registers
   access from NS ELs, NS-EL2 or NS-EL1 (when NS-EL2 is implemented but unused),
-  if FEAT_TRF is implemented. This flag is disabled by default.
+  if FEAT_TRF is implemented. This flag can take the values 0 to 2, to align
+  with the ``FEATURE_DETECTION`` mechanism. This flag is disabled by default.
 
 GICv3 driver options
 --------------------
diff --git a/docs/getting_started/porting-guide.rst b/docs/getting_started/porting-guide.rst
index 7f10ca6..3d3b2e3 100644
--- a/docs/getting_started/porting-guide.rst
+++ b/docs/getting_started/porting-guide.rst
@@ -2017,6 +2017,58 @@
 (that was copied during ``bl31_early_platform_setup()``) if the image exists. It
 should return NULL otherwise.
 
+Function : plat_get_cca_attest_token() [mandatory when ENABLE_RME == 1]
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+    Argument : uintptr_t, size_t *, uintptr_t, size_t
+    Return   : int
+
+This function returns the Platform attestation token.
+
+The parameters of the function are:
+
+    arg0 - A pointer to the buffer where the Platform token should be copied by
+           this function. The buffer must be big enough to hold the Platform
+           token.
+
+    arg1 - Contains the size (in bytes) of the buffer passed in arg0. The
+           function returns the platform token length in this parameter.
+
+    arg2 - A pointer to the buffer where the challenge object is stored.
+
+    arg3 - The length of the challenge object in bytes. Possible values are 32,
+           48 and 64.
+
+The function returns 0 on success, -EINVAL on failure.
+
+Function : plat_get_cca_realm_attest_key() [mandatory when ENABLE_RME == 1]
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+::
+
+    Argument : uintptr_t, size_t *, unsigned int
+    Return   : int
+
+This function returns the delegated realm attestation key which will be used to
+sign Realm attestation token. The API currently only supports P-384 ECC curve
+key.
+
+The parameters of the function are:
+
+    arg0 - A pointer to the buffer where the attestation key should be copied
+           by this function. The buffer must be big enough to hold the
+           attestation key.
+
+    arg1 - Contains the size (in bytes) of the buffer passed in arg0. The
+           function returns the attestation key length in this parameter.
+
+    arg2 - The type of the elliptic curve to which the requested attestation key
+           belongs.
+
+The function returns 0 on success, -EINVAL on failure.
+
 Function : bl31_plat_enable_mmu [optional]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -3154,7 +3206,7 @@
 
 --------------
 
-*Copyright (c) 2013-2021, Arm Limited and Contributors. All rights reserved.*
+*Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.*
 
 .. _PSCI: http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
 .. _Arm Generic Interrupt Controller version 2.0 (GICv2): http://infocenter.arm.com/help/topic/com.arm.doc.ihi0048b/index.html
diff --git a/drivers/arm/gic/v3/gic600ae_fmu.c b/drivers/arm/gic/v3/gic600ae_fmu.c
index 13979fa..0262f48 100644
--- a/drivers/arm/gic/v3/gic600ae_fmu.c
+++ b/drivers/arm/gic/v3/gic600ae_fmu.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2021-2022, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -9,6 +9,7 @@
  */
 
 #include <assert.h>
+#include <inttypes.h>
 
 #include <arch_helpers.h>
 #include <common/debug.h>
@@ -112,6 +113,135 @@
 	"Wake-GICD AXI4-Stream interface error"
 };
 
+/* Helper function to find detailed information for a specific IERR */
+static char __unused *ras_ierr_to_str(unsigned int blkid, unsigned int ierr)
+{
+	char *str = NULL;
+
+	/* Find the correct record */
+	switch (blkid) {
+	case FMU_BLK_GICD:
+		assert(ierr < ARRAY_SIZE(gicd_sm_info));
+		str = gicd_sm_info[ierr];
+		break;
+
+	case FMU_BLK_SPICOL:
+		assert(ierr < ARRAY_SIZE(spicol_sm_info));
+		str = spicol_sm_info[ierr];
+		break;
+
+	case FMU_BLK_WAKERQ:
+		assert(ierr < ARRAY_SIZE(wkrqst_sm_info));
+		str = wkrqst_sm_info[ierr];
+		break;
+
+	case FMU_BLK_ITS0...FMU_BLK_ITS7:
+		assert(ierr < ARRAY_SIZE(its_sm_info));
+		str = its_sm_info[ierr];
+		break;
+
+	case FMU_BLK_PPI0...FMU_BLK_PPI31:
+		assert(ierr < ARRAY_SIZE(ppi_sm_info));
+		str = ppi_sm_info[ierr];
+		break;
+
+	default:
+		assert(false);
+		break;
+	}
+
+	return str;
+}
+
+/*
+ * Probe for error in memory-mapped registers containing error records.
+ * Upon detecting an error, set probe data to the index of the record
+ * in error, and return 1; otherwise, return 0.
+ */
+int gic600_fmu_probe(uint64_t base, int *probe_data)
+{
+	uint64_t gsr;
+
+	assert(base != 0UL);
+
+	/*
+	 * Read ERR_GSR to find the error record 'M'
+	 */
+	gsr = gic_fmu_read_errgsr(base);
+	if (gsr == U(0)) {
+		return 0;
+	}
+
+	/* Return the index of the record in error */
+	if (probe_data != NULL) {
+		*probe_data = (int)__builtin_ctzll(gsr);
+	}
+
+	return 1;
+}
+
+/*
+ * The handler function to read RAS records and find the safety
+ * mechanism with the error.
+ */
+int gic600_fmu_ras_handler(uint64_t base, int probe_data)
+{
+	uint64_t errstatus;
+	unsigned int blkid = (unsigned int)probe_data, ierr, serr;
+
+	assert(base != 0UL);
+
+	/*
+	 * FMU_ERRGSR indicates the ID of the GIC
+	 * block that faulted.
+	 */
+	assert(blkid <= FMU_BLK_PPI31);
+
+	/*
+	 * Find more information by reading FMU_ERR<M>STATUS
+	 * register
+	 */
+	errstatus = gic_fmu_read_errstatus(base, blkid);
+
+	/*
+	 * If FMU_ERR<M>STATUS.V is set to 0, no RAS records
+	 * need to be scanned.
+	 */
+	if ((errstatus & FMU_ERRSTATUS_V_BIT) == U(0)) {
+		return 0;
+	}
+
+	/*
+	 * FMU_ERR<M>STATUS.IERR indicates which Safety Mechanism
+	 * reported the error.
+	 */
+	ierr = (errstatus >> FMU_ERRSTATUS_IERR_SHIFT) &
+			FMU_ERRSTATUS_IERR_MASK;
+
+	/*
+	 * FMU_ERR<M>STATUS.SERR indicates architecturally
+	 * defined primary error code.
+	 */
+	serr = errstatus & FMU_ERRSTATUS_SERR_MASK;
+
+	ERROR("**************************************\n");
+	ERROR("RAS %s Error detected by GIC600 AE FMU\n",
+		((errstatus & FMU_ERRSTATUS_UE_BIT) != 0U) ?
+			"Uncorrectable" : "Corrected");
+	ERROR("\tStatus = 0x%lx \n", errstatus);
+	ERROR("\tBlock ID = 0x%x\n", blkid);
+	ERROR("\tSafety Mechanism ID = 0x%x (%s)\n", ierr,
+		ras_ierr_to_str(blkid, ierr));
+	ERROR("\tArchitecturally defined primary error code = 0x%x\n",
+		serr);
+	ERROR("**************************************\n");
+
+	/* Clear FMU_ERR<M>STATUS */
+	gic_fmu_write_errstatus(base, probe_data, errstatus);
+
+	return 0;
+}
+
 /*
  * Initialization sequence for the FMU
  *
@@ -138,8 +268,12 @@
 	/* Enable error detection for all error records */
 	for (unsigned int i = 0U; i < num_blk; i++) {
 
-		/* Skip next steps if the block is not present */
+		/*
+		 * Disable all safety mechanisms for blocks that are not
+		 * present and skip the next steps.
+		 */
 		if ((blk_present_mask & BIT(i)) == 0U) {
+			gic_fmu_disable_all_sm_blkid(base, i);
 			continue;
 		}
 
@@ -168,22 +302,26 @@
 	 */
 	if ((blk_present_mask & BIT(FMU_BLK_GICD)) != 0U) {
 		smen = (GICD_MBIST_REQ_ERROR << FMU_SMEN_SMID_SHIFT) |
-			(FMU_BLK_GICD << FMU_SMEN_BLK_SHIFT);
+			(FMU_BLK_GICD << FMU_SMEN_BLK_SHIFT) |
+			FMU_SMEN_EN_BIT;
 		gic_fmu_write_smen(base, smen);
 
 		smen = (GICD_FMU_CLKGATE_ERROR << FMU_SMEN_SMID_SHIFT) |
-			(FMU_BLK_GICD << FMU_SMEN_BLK_SHIFT);
+			(FMU_BLK_GICD << FMU_SMEN_BLK_SHIFT) |
+			FMU_SMEN_EN_BIT;
 		gic_fmu_write_smen(base, smen);
 	}
 
 	for (unsigned int i = FMU_BLK_PPI0; i < FMU_BLK_PPI31; i++) {
 		if ((blk_present_mask & BIT(i)) != 0U) {
 			smen = (PPI_MBIST_REQ_ERROR << FMU_SMEN_SMID_SHIFT) |
-				(i << FMU_SMEN_BLK_SHIFT);
+				(i << FMU_SMEN_BLK_SHIFT) |
+				FMU_SMEN_EN_BIT;
 			gic_fmu_write_smen(base, smen);
 
 			smen = (PPI_FMU_CLKGATE_ERROR << FMU_SMEN_SMID_SHIFT) |
-				(i << FMU_SMEN_BLK_SHIFT);
+				(i << FMU_SMEN_BLK_SHIFT) |
+				FMU_SMEN_EN_BIT;
 			gic_fmu_write_smen(base, smen);
 		}
 	}
@@ -191,11 +329,13 @@
 	for (unsigned int i = FMU_BLK_ITS0; i < FMU_BLK_ITS7; i++) {
 		if ((blk_present_mask & BIT(i)) != 0U) {
 			smen = (ITS_MBIST_REQ_ERROR << FMU_SMEN_SMID_SHIFT) |
-				(i << FMU_SMEN_BLK_SHIFT);
+				(i << FMU_SMEN_BLK_SHIFT) |
+				FMU_SMEN_EN_BIT;
 			gic_fmu_write_smen(base, smen);
 
 			smen = (ITS_FMU_CLKGATE_ERROR << FMU_SMEN_SMID_SHIFT) |
-				(i << FMU_SMEN_BLK_SHIFT);
+				(i << FMU_SMEN_BLK_SHIFT) |
+				FMU_SMEN_EN_BIT;
 			gic_fmu_write_smen(base, smen);
 		}
 	}
diff --git a/drivers/arm/gic/v3/gic600ae_fmu_helpers.c b/drivers/arm/gic/v3/gic600ae_fmu_helpers.c
index 4aa0efb..09806dc 100644
--- a/drivers/arm/gic/v3/gic600ae_fmu_helpers.c
+++ b/drivers/arm/gic/v3/gic600ae_fmu_helpers.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2021-2022, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -258,3 +258,47 @@
 {
 	GIC_FMU_WRITE_64(base, GICFMU_PINGMASK, 0, val);
 }
+
+/*
+ * Helper function to disable all safety mechanisms for a given block
+ */
+void gic_fmu_disable_all_sm_blkid(uintptr_t base, unsigned int blkid)
+{
+	uint32_t smen, max_smid = U(0);
+
+	/* Sanity check block ID */
+	assert((blkid >= FMU_BLK_GICD) && (blkid <= FMU_BLK_PPI31));
+
+	/* Find the max safety mechanism ID for the block */
+	switch (blkid) {
+	case FMU_BLK_GICD:
+		max_smid = FMU_SMID_GICD_MAX;
+		break;
+
+	case FMU_BLK_SPICOL:
+		max_smid = FMU_SMID_SPICOL_MAX;
+		break;
+
+	case FMU_BLK_WAKERQ:
+		max_smid = FMU_SMID_WAKERQ_MAX;
+		break;
+
+	case FMU_BLK_ITS0...FMU_BLK_ITS7:
+		max_smid = FMU_SMID_ITS_MAX;
+		break;
+
+	case FMU_BLK_PPI0...FMU_BLK_PPI31:
+		max_smid = FMU_SMID_PPI_MAX;
+		break;
+
+	default:
+		assert(false);
+		break;
+	}
+
+	/* Disable all Safety Mechanisms for a given block id */
+	for (unsigned int i = 0U; i < max_smid; i++) {
+		smen = (blkid << FMU_SMEN_BLK_SHIFT) | (i << FMU_SMEN_SMID_SHIFT);
+		gic_fmu_write_smen(base, smen);
+	}
+}
diff --git a/drivers/nxp/ddr/phy-gen2/phy.c b/drivers/nxp/ddr/phy-gen2/phy.c
index 7dbe3a3..c8245a8 100644
--- a/drivers/nxp/ddr/phy-gen2/phy.c
+++ b/drivers/nxp/ddr/phy-gen2/phy.c
@@ -2216,10 +2216,14 @@
 
 	size = PHY_GEN2_MAX_IMAGE_SIZE;
 	image_buf = (uintptr_t)phy_gen2_fw_img_buf;
-	mmap_add_dynamic_region(phy_gen2_fw_img_buf,
+	ret = mmap_add_dynamic_region(phy_gen2_fw_img_buf,
 			phy_gen2_fw_img_buf,
 			PHY_GEN2_MAX_IMAGE_SIZE,
 			MT_MEMORY | MT_RW | MT_SECURE);
+	if (ret != 0) {
+		ERROR("Failed to add dynamic memory region.\n");
+		return ret;
+	}
 	ret = img_loadr(imem_id, &image_buf, &size);
 	if (ret != 0) {
 		ERROR("Failed to load %d firmware.\n", imem_id);
diff --git a/drivers/scmi-msg/clock.c b/drivers/scmi-msg/clock.c
index e96cede..85bf7d2 100644
--- a/drivers/scmi-msg/clock.c
+++ b/drivers/scmi-msg/clock.c
@@ -361,7 +361,7 @@
 	[SCMI_CLOCK_CONFIG_SET] = scmi_clock_config_set,
 };
 
-static bool message_id_is_supported(size_t message_id)
+static bool message_id_is_supported(unsigned int message_id)
 {
 	return (message_id < ARRAY_SIZE(scmi_clock_handler_table)) &&
 	       (scmi_clock_handler_table[message_id] != NULL);
diff --git a/drivers/scmi-msg/power_domain.c b/drivers/scmi-msg/power_domain.c
index c4e1289..87c41dd 100644
--- a/drivers/scmi-msg/power_domain.c
+++ b/drivers/scmi-msg/power_domain.c
@@ -19,7 +19,7 @@
 #pragma weak plat_scmi_pd_statistics
 #pragma weak plat_scmi_pd_get_attributes
 
-static bool message_id_is_supported(size_t message_id);
+static bool message_id_is_supported(unsigned int message_id);
 
 size_t plat_scmi_pd_count(unsigned int agent_id __unused)
 {
@@ -219,7 +219,7 @@
 	[SCMI_PD_STATE_GET] = scmi_pd_state_get,
 };
 
-static bool message_id_is_supported(size_t message_id)
+static bool message_id_is_supported(unsigned int message_id)
 {
 	return (message_id < ARRAY_SIZE(scmi_pd_handler_table)) &&
 	       (scmi_pd_handler_table[message_id] != NULL);
diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c
index 3c27aff..5e3575f 100644
--- a/drivers/ufs/ufs.c
+++ b/drivers/ufs/ufs.c
@@ -656,7 +656,6 @@
 	sense_data_t *sense;
 	unsigned char data[CACHE_WRITEBACK_GRANULE << 1];
 	uintptr_t buf;
-	int result;
 	int retry;
 
 	assert((ufs_params.reg_base != 0) &&
@@ -693,14 +692,12 @@
 		/* logical block length in bytes */
 		*size = be32toh(*(unsigned int *)(buf + 4));
 	} while (retry);
-	(void)result;
 }
 
 size_t ufs_read_blocks(int lun, int lba, uintptr_t buf, size_t size)
 {
 	utp_utrd_t utrd;
 	resp_upiu_t *resp;
-	int result;
 
 	assert((ufs_params.reg_base != 0) &&
 	       (ufs_params.desc_base != 0) &&
@@ -711,7 +708,6 @@
 	dump_upiu(&utrd);
 #endif
 	resp = (resp_upiu_t *)utrd.resp_upiu;
-	(void)result;
 	return size - resp->res_trans_cnt;
 }
 
@@ -719,7 +715,6 @@
 {
 	utp_utrd_t utrd;
 	resp_upiu_t *resp;
-	int result;
 
 	assert((ufs_params.reg_base != 0) &&
 	       (ufs_params.desc_base != 0) &&
@@ -730,7 +725,6 @@
 	dump_upiu(&utrd);
 #endif
 	resp = (resp_upiu_t *)utrd.resp_upiu;
-	(void)result;
 	return size - resp->res_trans_cnt;
 }
 
diff --git a/include/arch/aarch64/arch.h b/include/arch/aarch64/arch.h
index 29da33c..b4608ae 100644
--- a/include/arch/aarch64/arch.h
+++ b/include/arch/aarch64/arch.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.
  * Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
@@ -99,7 +99,6 @@
 /*******************************************************************************
  * Definitions for EL2 system registers for save/restore routine
  ******************************************************************************/
-
 #define CNTPOFF_EL2		S3_4_C14_C0_6
 #define HAFGRTR_EL2		S3_4_C3_C1_6
 #define HDFGRTR_EL2		S3_4_C3_C1_4
@@ -155,39 +154,55 @@
 #endif
 
 /* ID_AA64PFR0_EL1 definitions */
-#define ID_AA64PFR0_EL0_SHIFT	U(0)
-#define ID_AA64PFR0_EL1_SHIFT	U(4)
-#define ID_AA64PFR0_EL2_SHIFT	U(8)
-#define ID_AA64PFR0_EL3_SHIFT	U(12)
-#define ID_AA64PFR0_AMU_SHIFT	U(44)
-#define ID_AA64PFR0_AMU_MASK	ULL(0xf)
-#define ID_AA64PFR0_AMU_NOT_SUPPORTED	U(0x0)
-#define ID_AA64PFR0_AMU_V1	U(0x1)
-#define ID_AA64PFR0_AMU_V1P1	U(0x2)
-#define ID_AA64PFR0_ELX_MASK	ULL(0xf)
-#define ID_AA64PFR0_GIC_SHIFT	U(24)
-#define ID_AA64PFR0_GIC_WIDTH	U(4)
-#define ID_AA64PFR0_GIC_MASK	ULL(0xf)
-#define ID_AA64PFR0_SVE_SHIFT	U(32)
-#define ID_AA64PFR0_SVE_MASK	ULL(0xf)
-#define ID_AA64PFR0_SVE_LENGTH	U(4)
-#define ID_AA64PFR0_SEL2_SHIFT	U(36)
-#define ID_AA64PFR0_SEL2_MASK	ULL(0xf)
-#define ID_AA64PFR0_MPAM_SHIFT	U(40)
-#define ID_AA64PFR0_MPAM_MASK	ULL(0xf)
-#define ID_AA64PFR0_DIT_SHIFT	U(48)
-#define ID_AA64PFR0_DIT_MASK	ULL(0xf)
-#define ID_AA64PFR0_DIT_LENGTH	U(4)
-#define ID_AA64PFR0_DIT_SUPPORTED	U(1)
-#define ID_AA64PFR0_CSV2_SHIFT	U(56)
-#define ID_AA64PFR0_CSV2_MASK	ULL(0xf)
-#define ID_AA64PFR0_CSV2_LENGTH	U(4)
+#define ID_AA64PFR0_EL0_SHIFT			U(0)
+#define ID_AA64PFR0_EL1_SHIFT			U(4)
+#define ID_AA64PFR0_EL2_SHIFT			U(8)
+#define ID_AA64PFR0_EL3_SHIFT			U(12)
+
+#define ID_AA64PFR0_AMU_SHIFT			U(44)
+#define ID_AA64PFR0_AMU_MASK			ULL(0xf)
+#define ID_AA64PFR0_AMU_NOT_SUPPORTED		U(0x0)
+#define ID_AA64PFR0_AMU_V1			ULL(0x1)
+#define ID_AA64PFR0_AMU_V1P1			U(0x2)
+
+#define ID_AA64PFR0_ELX_MASK			ULL(0xf)
+
+#define ID_AA64PFR0_GIC_SHIFT			U(24)
+#define ID_AA64PFR0_GIC_WIDTH			U(4)
+#define ID_AA64PFR0_GIC_MASK			ULL(0xf)
+
+#define ID_AA64PFR0_SVE_SHIFT			U(32)
+#define ID_AA64PFR0_SVE_MASK			ULL(0xf)
+#define ID_AA64PFR0_SVE_SUPPORTED		ULL(0x1)
+#define ID_AA64PFR0_SVE_LENGTH			U(4)
+
+#define ID_AA64PFR0_SEL2_SHIFT			U(36)
+#define ID_AA64PFR0_SEL2_MASK			ULL(0xf)
+
+#define ID_AA64PFR0_MPAM_SHIFT			U(40)
+#define ID_AA64PFR0_MPAM_MASK			ULL(0xf)
+
+#define ID_AA64PFR0_DIT_SHIFT			U(48)
+#define ID_AA64PFR0_DIT_MASK			ULL(0xf)
+#define ID_AA64PFR0_DIT_LENGTH			U(4)
+#define ID_AA64PFR0_DIT_SUPPORTED		U(1)
+
+#define ID_AA64PFR0_CSV2_SHIFT			U(56)
+#define ID_AA64PFR0_CSV2_MASK			ULL(0xf)
+#define ID_AA64PFR0_CSV2_LENGTH			U(4)
+#define ID_AA64PFR0_CSV2_2_SUPPORTED		ULL(0x2)
+
 #define ID_AA64PFR0_FEAT_RME_SHIFT		U(52)
 #define ID_AA64PFR0_FEAT_RME_MASK		ULL(0xf)
 #define ID_AA64PFR0_FEAT_RME_LENGTH		U(4)
 #define ID_AA64PFR0_FEAT_RME_NOT_SUPPORTED	U(0)
 #define ID_AA64PFR0_FEAT_RME_V1			U(1)
 
+#define ID_AA64PFR0_RAS_SHIFT			U(28)
+#define ID_AA64PFR0_RAS_MASK			ULL(0xf)
+#define ID_AA64PFR0_RAS_NOT_SUPPORTED		ULL(0x0)
+#define ID_AA64PFR0_RAS_LENGTH			U(4)
+
 /* Exception level handling */
 #define EL_IMPL_NONE		ULL(0)
 #define EL_IMPL_A64ONLY		ULL(1)
@@ -204,8 +219,10 @@
 #define ID_AA64DFR0_TRACEFILT_LENGTH	U(4)
 
 /* ID_AA64DFR0_EL1.PMS definitions (for ARMv8.2+) */
-#define ID_AA64DFR0_PMS_SHIFT	U(32)
-#define ID_AA64DFR0_PMS_MASK	ULL(0xf)
+#define ID_AA64DFR0_PMS_SHIFT		U(32)
+#define ID_AA64DFR0_PMS_MASK		ULL(0xf)
+#define ID_AA64DFR0_SPE_SUPPORTED	ULL(0x1)
+#define ID_AA64DFR0_SPE_NOT_SUPPORTED   ULL(0x0)
 
 /* ID_AA64DFR0_EL1.TraceBuffer definitions */
 #define ID_AA64DFR0_TRACEBUFFER_SHIFT		U(44)
@@ -222,15 +239,22 @@
 #define ID_AA64ISAR0_RNDR_MASK	ULL(0xf)
 
 /* ID_AA64ISAR1_EL1 definitions */
-#define ID_AA64ISAR1_EL1	S3_0_C0_C6_1
-#define ID_AA64ISAR1_GPI_SHIFT	U(28)
-#define ID_AA64ISAR1_GPI_MASK	ULL(0xf)
-#define ID_AA64ISAR1_GPA_SHIFT	U(24)
-#define ID_AA64ISAR1_GPA_MASK	ULL(0xf)
-#define ID_AA64ISAR1_API_SHIFT	U(8)
-#define ID_AA64ISAR1_API_MASK	ULL(0xf)
-#define ID_AA64ISAR1_APA_SHIFT	U(4)
-#define ID_AA64ISAR1_APA_MASK	ULL(0xf)
+#define ID_AA64ISAR1_EL1		S3_0_C0_C6_1
+
+#define ID_AA64ISAR1_GPI_SHIFT		U(28)
+#define ID_AA64ISAR1_GPI_MASK		ULL(0xf)
+#define ID_AA64ISAR1_GPA_SHIFT		U(24)
+#define ID_AA64ISAR1_GPA_MASK		ULL(0xf)
+
+#define ID_AA64ISAR1_API_SHIFT		U(8)
+#define ID_AA64ISAR1_API_MASK		ULL(0xf)
+#define ID_AA64ISAR1_APA_SHIFT		U(4)
+#define ID_AA64ISAR1_APA_MASK		ULL(0xf)
+
+#define ID_AA64ISAR1_SB_SHIFT		U(36)
+#define ID_AA64ISAR1_SB_MASK		ULL(0xf)
+#define ID_AA64ISAR1_SB_SUPPORTED	ULL(0x1)
+#define ID_AA64ISAR1_SB_NOT_SUPPORTED	ULL(0x0)
 
 /* ID_AA64MMFR0_EL1 definitions */
 #define ID_AA64MMFR0_EL1_PARANGE_SHIFT	U(0)
@@ -292,17 +316,23 @@
 #define ID_AA64MMFR1_EL1_HCX_NOT_SUPPORTED	ULL(0x0)
 
 /* ID_AA64MMFR2_EL1 definitions */
-#define ID_AA64MMFR2_EL1		S3_0_C0_C7_2
+#define ID_AA64MMFR2_EL1			S3_0_C0_C7_2
 
-#define ID_AA64MMFR2_EL1_ST_SHIFT	U(28)
-#define ID_AA64MMFR2_EL1_ST_MASK	ULL(0xf)
+#define ID_AA64MMFR2_EL1_ST_SHIFT		U(28)
+#define ID_AA64MMFR2_EL1_ST_MASK		ULL(0xf)
 
-#define ID_AA64MMFR2_EL1_CCIDX_SHIFT	U(20)
-#define ID_AA64MMFR2_EL1_CCIDX_MASK	ULL(0xf)
-#define ID_AA64MMFR2_EL1_CCIDX_LENGTH	U(4)
+#define ID_AA64MMFR2_EL1_CCIDX_SHIFT		U(20)
+#define ID_AA64MMFR2_EL1_CCIDX_MASK		ULL(0xf)
+#define ID_AA64MMFR2_EL1_CCIDX_LENGTH		U(4)
 
-#define ID_AA64MMFR2_EL1_CNP_SHIFT	U(0)
-#define ID_AA64MMFR2_EL1_CNP_MASK	ULL(0xf)
+#define ID_AA64MMFR2_EL1_CNP_SHIFT		U(0)
+#define ID_AA64MMFR2_EL1_CNP_MASK		ULL(0xf)
+
+#define ID_AA64MMFR2_EL1_NV_SHIFT		U(24)
+#define ID_AA64MMFR2_EL1_NV_MASK		ULL(0xf)
+#define ID_AA64MMFR2_EL1_NV_NOT_SUPPORTED	ULL(0x0)
+#define ID_AA64MMFR2_EL1_NV_SUPPORTED		ULL(0x1)
+#define ID_AA64MMFR2_EL1_NV2_SUPPORTED		ULL(0x2)
 
 /* ID_AA64PFR1_EL1 definitions */
 #define ID_AA64PFR1_EL1_SSBS_SHIFT	U(4)
diff --git a/include/arch/aarch64/arch_features.h b/include/arch/aarch64/arch_features.h
index a260f03..29710e7 100644
--- a/include/arch/aarch64/arch_features.h
+++ b/include/arch/aarch64/arch_features.h
@@ -140,4 +140,88 @@
 		ID_AA64PFR0_FEAT_RME_SHIFT) & ID_AA64PFR0_FEAT_RME_MASK;
 }
 
+/*********************************************************************************
+ * Function to identify the presence of FEAT_SB (Speculation Barrier Instruction)
+ ********************************************************************************/
+static inline bool is_armv8_0_feat_sb_present(void)
+{
+	return (((read_id_aa64isar1_el1() >> ID_AA64ISAR1_SB_SHIFT) &
+		ID_AA64ISAR1_SB_MASK) == ID_AA64ISAR1_SB_SUPPORTED);
+}
+
+/*********************************************************************************
+ * Function to identify the presence of FEAT_CSV2_2 (Cache Speculation Variant 2)
+ ********************************************************************************/
+static inline bool is_armv8_0_feat_csv2_2_present(void)
+{
+	return (((read_id_aa64pfr0_el1() >> ID_AA64PFR0_CSV2_SHIFT) &
+		ID_AA64PFR0_CSV2_MASK) == ID_AA64PFR0_CSV2_2_SUPPORTED);
+}
+
+/**********************************************************************************
+ * Function to identify the presence of FEAT_SPE (Statistical Profiling Extension)
+ *********************************************************************************/
+static inline bool is_armv8_2_feat_spe_present(void)
+{
+	return (((read_id_aa64dfr0_el1() >> ID_AA64DFR0_PMS_SHIFT) &
+		ID_AA64DFR0_PMS_MASK) != ID_AA64DFR0_SPE_NOT_SUPPORTED);
+}
+
+/*******************************************************************************
+ * Function to identify the presence of FEAT_SVE (Scalable Vector Extension)
+ ******************************************************************************/
+static inline bool is_armv8_2_feat_sve_present(void)
+{
+	return (((read_id_aa64pfr0_el1() >> ID_AA64PFR0_SVE_SHIFT) &
+		ID_AA64PFR0_SVE_MASK) == ID_AA64PFR0_SVE_SUPPORTED);
+}
+
+/*******************************************************************************
+ * Function to identify the presence of FEAT_RAS (Reliability,Availability,
+ * and Serviceability Extension)
+ ******************************************************************************/
+static inline bool is_armv8_2_feat_ras_present(void)
+{
+	return (((read_id_aa64pfr0_el1() >> ID_AA64PFR0_RAS_SHIFT) &
+		ID_AA64PFR0_RAS_MASK) != ID_AA64PFR0_RAS_NOT_SUPPORTED);
+}
+
+/**************************************************************************
+ * Function to identify the presence of FEAT_DIT (Data Independent Timing)
+ *************************************************************************/
+static inline bool is_armv8_4_feat_dit_present(void)
+{
+	return (((read_id_aa64pfr0_el1() >> ID_AA64PFR0_DIT_SHIFT) &
+		ID_AA64PFR0_DIT_MASK) == ID_AA64PFR0_DIT_SUPPORTED);
+}
+
+/*************************************************************************
+ * Function to identify the presence of FEAT_TRF (TraceLift)
+ ************************************************************************/
+static inline bool is_arm8_4_feat_trf_present(void)
+{
+	return (((read_id_aa64dfr0_el1() >> ID_AA64DFR0_TRACEFILT_SHIFT) &
+		ID_AA64DFR0_TRACEFILT_MASK) == ID_AA64DFR0_TRACEFILT_SUPPORTED);
+}
+
+/*******************************************************************************
+ * Function to identify the presence of FEAT_AMUv1 (Activity Monitors-
+ * Extension v1)
+ ******************************************************************************/
+static inline bool is_armv8_4_feat_amuv1_present(void)
+{
+	return (((read_id_aa64pfr0_el1() >> ID_AA64PFR0_AMU_SHIFT) &
+		ID_AA64PFR0_AMU_MASK) >= ID_AA64PFR0_AMU_V1);
+}
+
+/********************************************************************************
+ * Function to identify the presence of FEAT_NV2 (Enhanced Nested Virtualization
+ * Support)
+ *******************************************************************************/
+static inline unsigned int get_armv8_4_feat_nv_support(void)
+{
+	return (((read_id_aa64mmfr2_el1() >> ID_AA64MMFR2_EL1_NV_SHIFT) &
+		ID_AA64MMFR2_EL1_NV_MASK));
+}
+
 #endif /* ARCH_FEATURES_H */
diff --git a/include/common/bl_common.ld.h b/include/common/bl_common.ld.h
index 5147e37..9888a3c 100644
--- a/include/common/bl_common.ld.h
+++ b/include/common/bl_common.ld.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2020-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -70,7 +70,9 @@
  */
 #define BASE_XLAT_TABLE					\
 	. = ALIGN(16);					\
-	*(base_xlat_table)
+	__BASE_XLAT_TABLE_START__ = .;			\
+	*(base_xlat_table)				\
+	__BASE_XLAT_TABLE_END__ = .;
 
 #if PLAT_RO_XLAT_TABLES
 #define BASE_XLAT_TABLE_RO		BASE_XLAT_TABLE
@@ -210,7 +212,9 @@
  */
 #define XLAT_TABLE_SECTION				\
 	xlat_table (NOLOAD) : {				\
+		__XLAT_TABLE_START__ = .;		\
 		*(xlat_table)				\
+		__XLAT_TABLE_END__ = .;			\
 	}
 
 #endif /* BL_COMMON_LD_H */
diff --git a/include/common/feat_detect.h b/include/common/feat_detect.h
new file mode 100644
index 0000000..0f0f105
--- /dev/null
+++ b/include/common/feat_detect.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2022, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef FEAT_DETECT_H
+#define FEAT_DETECT_H
+
+#include <arch_features.h>
+#include <common/debug.h>
+
+/* Function Prototypes */
+void detect_arch_features(void);
+
+/* Macro Definitions */
+#define FEAT_STATE_1	1
+#define FEAT_STATE_2	2
+#define feat_detect_panic(a, b)		((a) ? (void)0 : feature_panic(b))
+
+/*******************************************************************************
+ * Function : feature_panic
+ * Customised panic module with error logging mechanism to list the feature
+ * not supported by the PE.
+ ******************************************************************************/
+static inline void feature_panic(char *feat_name)
+{
+	ERROR("FEAT_%s not supported by the PE\n", feat_name);
+	panic();
+}
+
+#endif /* FEAT_DETECT_H */
diff --git a/include/drivers/arm/gic600ae_fmu.h b/include/drivers/arm/gic600ae_fmu.h
index 691ffc7..88b87b9 100644
--- a/include/drivers/arm/gic600ae_fmu.h
+++ b/include/drivers/arm/gic600ae_fmu.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2021-2022, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -37,6 +37,7 @@
 /* SMEN constants */
 #define FMU_SMEN_BLK_SHIFT	U(8)
 #define FMU_SMEN_SMID_SHIFT	U(24)
+#define FMU_SMEN_EN_BIT		BIT(0)
 
 /* Error record IDs */
 #define FMU_BLK_GICD		U(0)
@@ -86,10 +87,10 @@
 
 /* Safety Mechamism limit */
 #define FMU_SMID_GICD_MAX	U(33)
+#define FMU_SMID_PPI_MAX	U(12)
+#define FMU_SMID_ITS_MAX	U(14)
 #define FMU_SMID_SPICOL_MAX	U(5)
 #define FMU_SMID_WAKERQ_MAX	U(2)
-#define FMU_SMID_ITS_MAX	U(14)
-#define FMU_SMID_PPI_MAX	U(12)
 
 /* MBIST Safety Mechanism ID */
 #define GICD_MBIST_REQ_ERROR	U(23)
@@ -100,12 +101,17 @@
 #define ITS_FMU_CLKGATE_ERROR	U(14)
 
 /* ERRSTATUS bits */
-#define FMU_ERRSTATUS_V_BIT	BIT(30)
-#define FMU_ERRSTATUS_UE_BIT	BIT(29)
-#define FMU_ERRSTATUS_OV_BIT	BIT(27)
-#define FMU_ERRSTATUS_CE_BITS	(BIT(25) | BIT(24))
-#define FMU_ERRSTATUS_CLEAR	(FMU_ERRSTATUS_V_BIT | FMU_ERRSTATUS_UE_BIT | \
-				 FMU_ERRSTATUS_OV_BIT | FMU_ERRSTATUS_CE_BITS)
+#define FMU_ERRSTATUS_BLKID_SHIFT	U(32)
+#define FMU_ERRSTATUS_BLKID_MASK	U(0xFF)
+#define FMU_ERRSTATUS_V_BIT		BIT(30)
+#define FMU_ERRSTATUS_UE_BIT		BIT(29)
+#define FMU_ERRSTATUS_OV_BIT		BIT(27)
+#define FMU_ERRSTATUS_CE_BITS		(BIT(25) | BIT(24))
+#define FMU_ERRSTATUS_CLEAR		(FMU_ERRSTATUS_V_BIT | FMU_ERRSTATUS_UE_BIT | \
+					 FMU_ERRSTATUS_OV_BIT | FMU_ERRSTATUS_CE_BITS)
+#define FMU_ERRSTATUS_IERR_MASK		U(0xFF)
+#define FMU_ERRSTATUS_IERR_SHIFT	U(8)
+#define FMU_ERRSTATUS_SERR_MASK		U(0xFF)
 
 /* PINGCTLR constants */
 #define FMU_PINGCTLR_INTDIFF_SHIFT	U(16)
@@ -137,11 +143,14 @@
 void gic_fmu_write_smen(uintptr_t base, uint32_t val);
 void gic_fmu_write_sminjerr(uintptr_t base, uint32_t val);
 void gic_fmu_write_pingmask(uintptr_t base, uint64_t val);
+void gic_fmu_disable_all_sm_blkid(uintptr_t base, unsigned int blkid);
 
 void gic600_fmu_init(uint64_t base, uint64_t blk_present_mask, bool errctlr_ce_en, bool errctlr_ue_en);
 void gic600_fmu_enable_ping(uint64_t base, uint64_t blk_present_mask,
 		unsigned int timeout_val, unsigned int interval_diff);
 void gic600_fmu_print_sm_info(uint64_t base, unsigned int blk, unsigned int smid);
+int gic600_fmu_probe(uint64_t base, int *probe_data);
+int gic600_fmu_ras_handler(uint64_t base, int probe_data);
 
 #endif /* __ASSEMBLER__ */
 
diff --git a/include/lib/cpus/aarch64/cortex_a78.h b/include/lib/cpus/aarch64/cortex_a78.h
index f3cb39f..31da99e 100644
--- a/include/lib/cpus/aarch64/cortex_a78.h
+++ b/include/lib/cpus/aarch64/cortex_a78.h
@@ -35,8 +35,10 @@
 #define CORTEX_A78_ACTLR_TAM_BIT			(ULL(1) << 30)
 
 #define CORTEX_A78_ACTLR2_EL1				S3_0_C15_C1_1
+#define CORTEX_A78_ACTLR2_EL1_BIT_0			(ULL(1) << 0)
 #define CORTEX_A78_ACTLR2_EL1_BIT_1			(ULL(1) << 1)
 #define CORTEX_A78_ACTLR2_EL1_BIT_2			(ULL(1) << 2)
+#define CORTEX_A78_ACTLR2_EL1_BIT_40			(ULL(1) << 40)
 
 /*******************************************************************************
  * CPU Activity Monitor Unit register specific definitions.
diff --git a/include/lib/cpus/aarch64/cortex_a78_ae.h b/include/lib/cpus/aarch64/cortex_a78_ae.h
index 90b6d6f..b68ec1e 100644
--- a/include/lib/cpus/aarch64/cortex_a78_ae.h
+++ b/include/lib/cpus/aarch64/cortex_a78_ae.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2019-2022, ARM Limited. All rights reserved.
- * Copyright (c) 2021, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2021-2022, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -21,4 +21,11 @@
 #define CORTEX_A78_AE_CPUECTLR_EL1			CORTEX_A78_CPUECTLR_EL1
 #define CORTEX_A78_AE_CPUECTLR_EL1_BIT_8		CORTEX_A78_CPUECTLR_EL1_BIT_8
 
+/*******************************************************************************
+ * CPU Auxiliary Control register 2 specific definitions.
+ ******************************************************************************/
+#define CORTEX_A78_AE_ACTLR2_EL1			CORTEX_A78_ACTLR2_EL1
+#define CORTEX_A78_AE_ACTLR2_EL1_BIT_0			CORTEX_A78_ACTLR2_EL1_BIT_0
+#define CORTEX_A78_AE_ACTLR2_EL1_BIT_40			CORTEX_A78_ACTLR2_EL1_BIT_40
+
 #endif /* CORTEX_A78_AE_H */
diff --git a/include/lib/el3_runtime/aarch64/context.h b/include/lib/el3_runtime/aarch64/context.h
index 512d196..3a09383 100644
--- a/include/lib/el3_runtime/aarch64/context.h
+++ b/include/lib/el3_runtime/aarch64/context.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -217,23 +217,20 @@
 
 // Starting with Armv8.4
 #define CTX_CONTEXTIDR_EL2	U(0x198)
-#define CTX_SDER32_EL2		U(0x1a0)
-#define CTX_TTBR1_EL2		U(0x1a8)
-#define CTX_VDISR_EL2		U(0x1b0)
+#define CTX_TTBR1_EL2		U(0x1a0)
+#define CTX_VDISR_EL2		U(0x1a8)
+#define CTX_VSESR_EL2		U(0x1b0)
 #define CTX_VNCR_EL2		U(0x1b8)
-#define CTX_VSESR_EL2		U(0x1c0)
-#define CTX_VSTCR_EL2		U(0x1c8)
-#define CTX_VSTTBR_EL2		U(0x1d0)
-#define CTX_TRFCR_EL2		U(0x1d8)
+#define CTX_TRFCR_EL2		U(0x1c0)
 
 // Starting with Armv8.5
-#define CTX_SCXTNUM_EL2		U(0x1e0)
+#define CTX_SCXTNUM_EL2		U(0x1c8)
 
 // Register for FEAT_HCX
-#define CTX_HCRX_EL2            U(0x1e8)
+#define CTX_HCRX_EL2            U(0x1d0)
 
 /* Align to the next 16 byte boundary */
-#define CTX_EL2_SYSREGS_END	U(0x1f0)
+#define CTX_EL2_SYSREGS_END	U(0x1e0)
 
 #endif /* CTX_INCLUDE_EL2_REGS */
 
diff --git a/include/lib/el3_runtime/context_mgmt.h b/include/lib/el3_runtime/context_mgmt.h
index 2090687..1a76d8e 100644
--- a/include/lib/el3_runtime/context_mgmt.h
+++ b/include/lib/el3_runtime/context_mgmt.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -34,6 +34,7 @@
 			      const struct entry_point_info *ep);
 void cm_setup_context(cpu_context_t *ctx, const struct entry_point_info *ep);
 void cm_prepare_el3_exit(uint32_t security_state);
+void cm_prepare_el3_exit_ns(void);
 
 #ifdef __aarch64__
 #if CTX_INCLUDE_EL2_REGS
diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
index 509fd58..7664509 100644
--- a/include/plat/common/platform.h
+++ b/include/plat/common/platform.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -303,6 +303,14 @@
 			unsigned int ncpu);
 
 /*******************************************************************************
+ * Mandatory BL31 functions when ENABLE_RME=1
+ ******************************************************************************/
+int plat_get_cca_attest_token(uintptr_t buf, size_t *len,
+			       uintptr_t hash, size_t hash_size);
+int plat_get_cca_realm_attest_key(uintptr_t buf, size_t *len,
+				   unsigned int type);
+
+/*******************************************************************************
  * Optional BL31 functions (may be overridden)
  ******************************************************************************/
 void bl31_plat_enable_mmu(uint32_t flags);
diff --git a/include/services/rmmd_svc.h b/include/services/rmmd_svc.h
index 8eb49c8..2fbdddd 100644
--- a/include/services/rmmd_svc.h
+++ b/include/services/rmmd_svc.h
@@ -77,6 +77,45 @@
 #define RMMD_ERR_INVAL			-5
 #define RMMD_ERR_UNK			-6
 
+/*
+ * Retrieve Platform token from EL3.
+ * The arguments to this SMC are :
+ *    arg0 - Function ID.
+ *    arg1 - Platform attestation token buffer Physical address. (The challenge
+ *           object is passed in this buffer.)
+ *    arg2 - Platform attestation token buffer size (in bytes).
+ *    arg3 - Challenge object size (in bytes). It has be one of the defined SHA hash
+ *           sizes.
+ * The return arguments are :
+ *    ret0 - Status / error.
+ *    ret1 - Size of the platform token if successful.
+ */
+#define RMMD_ATTEST_GET_PLAT_TOKEN	RMM_FID(SMC_64, ATTEST_GET_PLAT_TOKEN)
+
+/* Acceptable SHA sizes for Challenge object */
+#define SHA256_DIGEST_SIZE	32U
+#define SHA384_DIGEST_SIZE	48U
+#define SHA512_DIGEST_SIZE	64U
+
+/*
+ * Retrieve Realm attestation key from EL3. Only P-384 ECC curve key is
+ * supported. The arguments to this SMC are :
+ *    arg0 - Function ID.
+ *    arg1 - Realm attestation key buffer Physical address.
+ *    arg2 - Realm attestation key buffer size (in bytes).
+ *    arg3 - The type of the elliptic curve to which the requested
+ *           attestation key belongs to. The value should be one of the
+ *           defined curve types.
+ * The return arguments are :
+ *    ret0 - Status / error.
+ *    ret1 - Size of the realm attestation key if successful.
+ */
+#define RMMD_ATTEST_GET_REALM_KEY	RMM_FID(SMC_64, ATTEST_GET_REALM_KEY)
+
+/* ECC Curve types for attest key generation */
+#define ATTEST_KEY_CURVE_ECC_SECP384R1		0
+
+
 #ifndef __ASSEMBLER__
 #include <stdint.h>
 
@@ -100,5 +139,4 @@
 		uint64_t flags);
 
 #endif /* __ASSEMBLER__ */
-
 #endif /* RMMD_SVC_H */
diff --git a/lib/cpus/aarch64/cortex_a78_ae.S b/lib/cpus/aarch64/cortex_a78_ae.S
index bf872df..27adc38 100644
--- a/lib/cpus/aarch64/cortex_a78_ae.S
+++ b/lib/cpus/aarch64/cortex_a78_ae.S
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2019-2022, ARM Limited. All rights reserved.
- * Copyright (c) 2021, NVIDIA Corporation. All rights reserved.
+ * Copyright (c) 2021-2022, NVIDIA Corporation. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -104,6 +104,78 @@
 	b	cpu_rev_var_range
 endfunc check_errata_1951502
 
+/* --------------------------------------------------
+ * Errata Workaround for A78 AE Erratum 2376748.
+ * This applies to revisions r0p0 and r0p1 of A78 AE.
+ * Inputs:
+ * x0: variant[4:7] and revision[0:3] of current cpu.
+ * Shall clobber: x0-x17
+ * --------------------------------------------------
+ */
+func errata_a78_ae_2376748_wa
+	/* Compare x0 against revisions r0p0 - r0p1 */
+	mov	x17, x30
+	bl	check_errata_2376748
+	cbz	x0, 1f
+
+	/* -------------------------------------------------------
+	 * Set CPUACTLR2_EL1[0] to 1 to force PLDW/PFRM ST to
+	 * behave like PLD/PRFM LD and not cause invalidations to
+	 * other PE caches. There might be a small performance
+	 * degradation to this workaround for certain workloads
+	 * that share data.
+	 * -------------------------------------------------------
+	 */
+	mrs	x0, CORTEX_A78_AE_ACTLR2_EL1
+	orr	x0, x0, #CORTEX_A78_AE_ACTLR2_EL1_BIT_0
+	msr	CORTEX_A78_AE_ACTLR2_EL1, x0
+	isb
+1:
+	ret	x17
+endfunc errata_a78_ae_2376748_wa
+
+func check_errata_2376748
+	/* Applies to revisions r0p0 and r0p1. */
+	mov	x1, #CPU_REV(0, 0)
+	mov	x2, #CPU_REV(0, 1)
+	b	cpu_rev_var_range
+endfunc check_errata_2376748
+
+/* --------------------------------------------------
+ * Errata Workaround for A78 AE Erratum 2395408.
+ * This applies to revisions r0p0 and r0p1 of A78 AE.
+ * Inputs:
+ * x0: variant[4:7] and revision[0:3] of current cpu.
+ * Shall clobber: x0-x17
+ * --------------------------------------------------
+ */
+func errata_a78_ae_2395408_wa
+	/* Compare x0 against revisions r0p0 - r0p1 */
+	mov	x17, x30
+	bl	check_errata_2395408
+	cbz	x0, 1f
+
+	/* --------------------------------------------------------
+	 * Disable folding of demand requests into older prefetches
+	 * with L2 miss requests outstanding by setting the
+	 * CPUACTLR2_EL1[40] to 1.
+	 * --------------------------------------------------------
+	 */
+	mrs	x0, CORTEX_A78_AE_ACTLR2_EL1
+	orr	x0, x0, #CORTEX_A78_AE_ACTLR2_EL1_BIT_40
+	msr	CORTEX_A78_AE_ACTLR2_EL1, x0
+	isb
+1:
+	ret	x17
+endfunc errata_a78_ae_2395408_wa
+
+func check_errata_2395408
+	/* Applies to revisions r0p0 and r0p1. */
+	mov	x1, #CPU_REV(0, 0)
+	mov	x2, #CPU_REV(0, 1)
+	b	cpu_rev_var_range
+endfunc check_errata_2395408
+
 func check_errata_cve_2022_23960
 #if WORKAROUND_CVE_2022_23960
 	mov	x0, #ERRATA_APPLIES
@@ -132,6 +204,16 @@
 	bl	errata_a78_ae_1951502_wa
 #endif
 
+#if ERRATA_A78_AE_2376748
+	mov	x0, x18
+	bl	errata_a78_ae_2376748_wa
+#endif
+
+#if ERRATA_A78_AE_2395408
+	mov	x0, x18
+	bl	errata_a78_ae_2395408_wa
+#endif
+
 #if ENABLE_AMU
 	/* Make sure accesses from EL0/EL1 and EL2 are not trapped to EL3 */
 	mrs	x0, actlr_el3
@@ -197,6 +279,8 @@
 	 */
 	report_errata ERRATA_A78_AE_1941500, cortex_a78_ae, 1941500
 	report_errata ERRATA_A78_AE_1951502, cortex_a78_ae, 1951502
+	report_errata ERRATA_A78_AE_2376748, cortex_a78_ae, 2376748
+	report_errata ERRATA_A78_AE_2395408, cortex_a78_ae, 2395408
 	report_errata WORKAROUND_CVE_2022_23960, cortex_a78_ae, cve_2022_23960
 
 	ldp	x8, x30, [sp], #16
diff --git a/lib/cpus/cpu-ops.mk b/lib/cpus/cpu-ops.mk
index c7630fb..8840f8e 100644
--- a/lib/cpus/cpu-ops.mk
+++ b/lib/cpus/cpu-ops.mk
@@ -1,6 +1,6 @@
 #
 # Copyright (c) 2014-2022, ARM Limited and Contributors. All rights reserved.
-# Copyright (c) 2020-2021, NVIDIA Corporation. All rights reserved.
+# Copyright (c) 2020-2022, NVIDIA Corporation. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -341,6 +341,14 @@
 # to revisions r0p0 and r0p1 of the A78 AE cpu. It is still open.
 ERRATA_A78_AE_1951502	?=0
 
+# Flag to apply erratum 2376748 workaround during reset. This erratum applies
+# to revisions r0p0 and r0p1 of the A78 AE cpu. It is still open.
+ERRATA_A78_AE_2376748	?=0
+
+# Flag to apply erratum 2395408 workaround during reset. This erratum applies
+# to revisions r0p0 and r0p1 of the A78 AE cpu. It is still open.
+ERRATA_A78_AE_2395408	?=0
+
 # Flag to apply T32 CLREX workaround during reset. This erratum applies
 # only to r0p0 and r1p0 of the Neoverse N1 cpu.
 ERRATA_N1_1043202	?=0
@@ -838,6 +846,14 @@
 $(eval $(call assert_boolean,ERRATA_A78_AE_1951502))
 $(eval $(call add_define,ERRATA_A78_AE_1951502))
 
+# Process ERRATA_A78_AE_2376748 flag
+$(eval $(call assert_boolean,ERRATA_A78_AE_2376748))
+$(eval $(call add_define,ERRATA_A78_AE_2376748))
+
+# Process ERRATA_A78_AE_2395408 flag
+$(eval $(call assert_boolean,ERRATA_A78_AE_2395408))
+$(eval $(call add_define,ERRATA_A78_AE_2395408))
+
 # Process ERRATA_N1_1043202 flag
 $(eval $(call assert_boolean,ERRATA_N1_1043202))
 $(eval $(call add_define,ERRATA_N1_1043202))
diff --git a/lib/el3_runtime/aarch32/context_mgmt.c b/lib/el3_runtime/aarch32/context_mgmt.c
index 3ef378c..af8edf5 100644
--- a/lib/el3_runtime/aarch32/context_mgmt.c
+++ b/lib/el3_runtime/aarch32/context_mgmt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -332,3 +332,12 @@
 		enable_extensions_nonsecure(el2_unused);
 	}
 }
+
+/*******************************************************************************
+ * This function is used to exit to Non-secure world. It simply calls the
+ * cm_prepare_el3_exit function for AArch32.
+ ******************************************************************************/
+void cm_prepare_el3_exit_ns(void)
+{
+	cm_prepare_el3_exit(NON_SECURE);
+}
diff --git a/lib/el3_runtime/aarch64/context.S b/lib/el3_runtime/aarch64/context.S
index c1c0612..69acc2f 100644
--- a/lib/el3_runtime/aarch64/context.S
+++ b/lib/el3_runtime/aarch64/context.S
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -13,14 +13,14 @@
 #if CTX_INCLUDE_EL2_REGS
 	.global	el2_sysregs_context_save
 	.global	el2_sysregs_context_restore
-#endif
+#endif /* CTX_INCLUDE_EL2_REGS */
 
 	.global	el1_sysregs_context_save
 	.global	el1_sysregs_context_restore
 #if CTX_INCLUDE_FPREGS
 	.global	fpregs_context_save
 	.global	fpregs_context_restore
-#endif
+#endif /* CTX_INCLUDE_FPREGS */
 	.global	prepare_el3_entry
 	.global	restore_gp_pmcr_pauth_regs
 	.global save_and_update_ptw_el1_sys_regs
@@ -62,7 +62,7 @@
 #if CTX_INCLUDE_AARCH32_REGS
 	mrs	x16, dbgvcr32_el2
 	str	x16, [x0, #CTX_DBGVCR32_EL2]
-#endif
+#endif /* CTX_INCLUDE_AARCH32_REGS */
 
 	mrs	x9, elr_el2
 	mrs	x10, esr_el2
@@ -91,7 +91,8 @@
 #if ENABLE_SPE_FOR_LOWER_ELS
 	mrs	x13, PMSCR_EL2
 	str	x13, [x0, #CTX_PMSCR_EL2]
-#endif
+#endif /* ENABLE_SPE_FOR_LOWER_ELS */
+
 	mrs	x14, sctlr_el2
 	str	x14, [x0, #CTX_SCTLR_EL2]
 
@@ -118,7 +119,7 @@
 #if CTX_INCLUDE_MTE_REGS
 	mrs	x9, TFSR_EL2
 	str	x9, [x0, #CTX_TFSR_EL2]
-#endif
+#endif /* CTX_INCLUDE_MTE_REGS */
 
 #if ENABLE_MPAM_FOR_LOWER_ELS
 	mrs	x10, MPAM2_EL2
@@ -143,7 +144,7 @@
 	mrs	x11, MPAMVPM7_EL2
 	mrs	x12, MPAMVPMV_EL2
 	stp	x11, x12, [x0, #CTX_MPAMVPM7_EL2]
-#endif
+#endif /* ENABLE_MPAM_FOR_LOWER_ELS */
 
 #if ENABLE_FEAT_FGT
 	mrs	x13, HDFGRTR_EL2
@@ -152,7 +153,7 @@
    	stp	x13, x14, [x0, #CTX_HDFGRTR_EL2]
 #else
    	str	x13, [x0, #CTX_HDFGRTR_EL2]
-#endif
+#endif /* ENABLE_FEAT_AMUv1 */
 	mrs	x15, HDFGWTR_EL2
 	mrs	x16, HFGITR_EL2
 	stp	x15, x16, [x0, #CTX_HDFGWTR_EL2]
@@ -160,48 +161,61 @@
 	mrs	x9, HFGRTR_EL2
 	mrs	x10, HFGWTR_EL2
 	stp	x9, x10, [x0, #CTX_HFGRTR_EL2]
-#endif
+#endif /* ENABLE_FEAT_FGT */
 
 #if ENABLE_FEAT_ECV
 	mrs	x11, CNTPOFF_EL2
 	str	x11, [x0, #CTX_CNTPOFF_EL2]
-#endif
+#endif /* ENABLE_FEAT_ECV */
 
-#if ARM_ARCH_AT_LEAST(8, 4)
-	mrs	x12, contextidr_el2
-	str	x12, [x0, #CTX_CONTEXTIDR_EL2]
+#if ENABLE_FEAT_VHE
+	/*
+	 * CONTEXTIDR_EL2 register is saved only when FEAT_VHE or
+	 * FEAT_Debugv8p2 (currently not in TF-A) is supported.
+	 */
+	mrs	x9, contextidr_el2
+	mrs	x10, ttbr1_el2
+	stp	x9, x10, [x0, #CTX_CONTEXTIDR_EL2]
+#endif /* ENABLE_FEAT_VHE */
 
-#if CTX_INCLUDE_AARCH32_REGS
-	mrs	x13, sder32_el2
-	str	x13, [x0, #CTX_SDER32_EL2]
-#endif
-	mrs	x14, ttbr1_el2
-	mrs	x15, vdisr_el2
-	stp	x14, x15, [x0, #CTX_TTBR1_EL2]
+#if RAS_EXTENSION
+	/*
+	 * VDISR_EL2 and VSESR_EL2 registers are saved only when
+	 * FEAT_RAS is supported.
+	 */
+	mrs	x11, vdisr_el2
+	mrs	x12, vsesr_el2
+	stp	x11, x12, [x0, #CTX_VDISR_EL2]
+#endif /* RAS_EXTENSION */
 
 #if CTX_INCLUDE_NEVE_REGS
+	/*
+	 * VNCR_EL2 register is saved only when FEAT_NV2 is supported.
+	 */
 	mrs	x16, vncr_el2
 	str	x16, [x0, #CTX_VNCR_EL2]
-#endif
+#endif /* CTX_INCLUDE_NEVE_REGS */
 
-	mrs	x9, vsesr_el2
-	mrs	x10, vstcr_el2
-	stp	x9, x10, [x0, #CTX_VSESR_EL2]
-
-	mrs	x11, vsttbr_el2
+#if ENABLE_TRF_FOR_NS
+	/*
+	 * TRFCR_EL2 register is saved only when FEAT_TRF is supported.
+	 */
 	mrs	x12, TRFCR_EL2
-	stp	x11, x12, [x0, #CTX_VSTTBR_EL2]
-#endif
+	str	x12, [x0, #CTX_TRFCR_EL2]
+#endif /* ENABLE_TRF_FOR_NS */
 
-#if ARM_ARCH_AT_LEAST(8, 5)
+#if ENABLE_FEAT_CSV2_2
+	/*
+	 * SCXTNUM_EL2 register is saved only when FEAT_CSV2_2 is supported.
+	 */
 	mrs	x13, scxtnum_el2
 	str	x13, [x0, #CTX_SCXTNUM_EL2]
-#endif
+#endif /* ENABLE_FEAT_CSV2_2 */
 
 #if ENABLE_FEAT_HCX
 	mrs	x14, hcrx_el2
 	str	x14, [x0, #CTX_HCRX_EL2]
-#endif
+#endif /* ENABLE_FEAT_HCX */
 
 	ret
 endfunc el2_sysregs_context_save
@@ -241,7 +255,7 @@
 #if CTX_INCLUDE_AARCH32_REGS
 	ldr	x16, [x0, #CTX_DBGVCR32_EL2]
 	msr	dbgvcr32_el2, x16
-#endif
+#endif /* CTX_INCLUDE_AARCH32_REGS */
 
 	ldp	x9, x10, [x0, #CTX_ELR_EL2]
 	msr	elr_el2, x9
@@ -270,7 +284,8 @@
 #if ENABLE_SPE_FOR_LOWER_ELS
 	ldr	x13, [x0, #CTX_PMSCR_EL2]
 	msr	PMSCR_EL2, x13
-#endif
+#endif /* ENABLE_SPE_FOR_LOWER_ELS */
+
 	ldr	x14, [x0, #CTX_SCTLR_EL2]
 	msr	sctlr_el2, x14
 
@@ -297,7 +312,7 @@
 #if CTX_INCLUDE_MTE_REGS
 	ldr	x9, [x0, #CTX_TFSR_EL2]
 	msr	TFSR_EL2, x9
-#endif
+#endif /* CTX_INCLUDE_MTE_REGS */
 
 #if ENABLE_MPAM_FOR_LOWER_ELS
 	ldr	x10, [x0, #CTX_MPAM2_EL2]
@@ -322,7 +337,7 @@
 	ldp	x11, x12, [x0, #CTX_MPAMVPM7_EL2]
 	msr	MPAMVPM7_EL2, x11
 	msr	MPAMVPMV_EL2, x12
-#endif
+#endif /* ENABLE_MPAM_FOR_LOWER_ELS */
 
 #if ENABLE_FEAT_FGT
 #if ENABLE_FEAT_AMUv1
@@ -330,7 +345,7 @@
 	msr	HAFGRTR_EL2, x14
 #else
 	ldr	x13, [x0, #CTX_HDFGRTR_EL2]
-#endif
+#endif /* ENABLE_FEAT_AMUv1 */
 	msr	HDFGRTR_EL2, x13
 
 	ldp	x15, x16, [x0, #CTX_HDFGWTR_EL2]
@@ -340,48 +355,61 @@
 	ldp	x9, x10, [x0, #CTX_HFGRTR_EL2]
 	msr	HFGRTR_EL2, x9
 	msr	HFGWTR_EL2, x10
-#endif
+#endif /* ENABLE_FEAT_FGT */
 
 #if ENABLE_FEAT_ECV
 	ldr	x11, [x0, #CTX_CNTPOFF_EL2]
 	msr	CNTPOFF_EL2, x11
-#endif
+#endif /* ENABLE_FEAT_ECV */
 
-#if ARM_ARCH_AT_LEAST(8, 4)
-	ldr	x12, [x0, #CTX_CONTEXTIDR_EL2]
-	msr	contextidr_el2, x12
+#if ENABLE_FEAT_VHE
+	/*
+	 * CONTEXTIDR_EL2 register is restored only when FEAT_VHE or
+	 * FEAT_Debugv8p2 (currently not in TF-A) is supported.
+	 */
+	ldp	x9, x10, [x0, #CTX_CONTEXTIDR_EL2]
+	msr	contextidr_el2, x9
+	msr	ttbr1_el2, x10
+#endif /* ENABLE_FEAT_VHE */
 
-#if CTX_INCLUDE_AARCH32_REGS
-	ldr	x13, [x0, #CTX_SDER32_EL2]
-	msr	sder32_el2, x13
-#endif
-	ldp	x14, x15, [x0, #CTX_TTBR1_EL2]
-	msr	ttbr1_el2, x14
-	msr	vdisr_el2, x15
+#if RAS_EXTENSION
+	/*
+	 * VDISR_EL2 and VSESR_EL2 registers are restored only when FEAT_RAS
+	 * is supported.
+	 */
+	ldp	x11, x12, [x0, #CTX_VDISR_EL2]
+	msr	vdisr_el2, x11
+	msr	vsesr_el2, x12
+#endif /* RAS_EXTENSION */
 
 #if CTX_INCLUDE_NEVE_REGS
+	/*
+	 * VNCR_EL2 register is restored only when FEAT_NV2 is supported.
+	 */
 	ldr	x16, [x0, #CTX_VNCR_EL2]
 	msr	vncr_el2, x16
-#endif
+#endif /* CTX_INCLUDE_NEVE_REGS */
 
-	ldp	x9, x10, [x0, #CTX_VSESR_EL2]
-	msr	vsesr_el2, x9
-	msr	vstcr_el2, x10
-
-	ldp	x11, x12, [x0, #CTX_VSTTBR_EL2]
-	msr	vsttbr_el2, x11
+#if ENABLE_TRF_FOR_NS
+	/*
+	 * TRFCR_EL2 register is restored only when FEAT_TRF is supported.
+	 */
+	ldr	x12, [x0, #CTX_TRFCR_EL2]
 	msr	TRFCR_EL2, x12
-#endif
+#endif /* ENABLE_TRF_FOR_NS */
 
-#if ARM_ARCH_AT_LEAST(8, 5)
+#if ENABLE_FEAT_CSV2_2
+	/*
+	 * SCXTNUM_EL2 register is restored only when FEAT_CSV2_2 is supported.
+	 */
 	ldr	x13, [x0, #CTX_SCXTNUM_EL2]
 	msr	scxtnum_el2, x13
-#endif
+#endif /* ENABLE_FEAT_CSV2_2 */
 
 #if ENABLE_FEAT_HCX
 	ldr	x14, [x0, #CTX_HCRX_EL2]
 	msr	hcrx_el2, x14
-#endif
+#endif /* ENABLE_FEAT_HCX */
 
 	ret
 endfunc el2_sysregs_context_restore
@@ -405,7 +433,7 @@
 	mrs	x15, sctlr_el1
 	mrs	x16, tcr_el1
 	stp	x15, x16, [x0, #CTX_SCTLR_EL1]
-#endif
+#endif /* ERRATA_SPECULATIVE_AT */
 
 	mrs	x17, cpacr_el1
 	mrs	x9, csselr_el1
@@ -456,7 +484,7 @@
 	mrs	x15, dacr32_el2
 	mrs	x16, ifsr32_el2
 	stp	x15, x16, [x0, #CTX_DACR32_EL2]
-#endif
+#endif /* CTX_INCLUDE_AARCH32_REGS */
 
 	/* Save NS timer registers if the build has instructed so */
 #if NS_TIMER_SWITCH
@@ -470,7 +498,7 @@
 
 	mrs	x14, cntkctl_el1
 	str	x14, [x0, #CTX_CNTKCTL_EL1]
-#endif
+#endif /* NS_TIMER_SWITCH */
 
 	/* Save MTE system registers if the build has instructed so */
 #if CTX_INCLUDE_MTE_REGS
@@ -481,7 +509,7 @@
 	mrs	x9, RGSR_EL1
 	mrs	x10, GCR_EL1
 	stp	x9, x10, [x0, #CTX_RGSR_EL1]
-#endif
+#endif /* CTX_INCLUDE_MTE_REGS */
 
 	ret
 endfunc el1_sysregs_context_save
@@ -504,7 +532,7 @@
 	ldp	x15, x16, [x0, #CTX_SCTLR_EL1]
 	msr	sctlr_el1, x15
 	msr	tcr_el1, x16
-#endif
+#endif /* ERRATA_SPECULATIVE_AT */
 
 	ldp	x17, x9, [x0, #CTX_CPACR_EL1]
 	msr	cpacr_el1, x17
@@ -555,7 +583,8 @@
 	ldp	x15, x16, [x0, #CTX_DACR32_EL2]
 	msr	dacr32_el2, x15
 	msr	ifsr32_el2, x16
-#endif
+#endif /* CTX_INCLUDE_AARCH32_REGS */
+
 	/* Restore NS timer registers if the build has instructed so */
 #if NS_TIMER_SWITCH
 	ldp	x10, x11, [x0, #CTX_CNTP_CTL_EL0]
@@ -568,7 +597,8 @@
 
 	ldr	x14, [x0, #CTX_CNTKCTL_EL1]
 	msr	cntkctl_el1, x14
-#endif
+#endif /* NS_TIMER_SWITCH */
+
 	/* Restore MTE system registers if the build has instructed so */
 #if CTX_INCLUDE_MTE_REGS
 	ldp	x11, x12, [x0, #CTX_TFSRE0_EL1]
@@ -578,7 +608,7 @@
 	ldp	x13, x14, [x0, #CTX_RGSR_EL1]
 	msr	RGSR_EL1, x13
 	msr	GCR_EL1, x14
-#endif
+#endif /* CTX_INCLUDE_MTE_REGS */
 
 	/* No explict ISB required here as ERET covers it */
 	ret
@@ -626,7 +656,7 @@
 #if CTX_INCLUDE_AARCH32_REGS
 	mrs	x11, fpexc32_el2
 	str	x11, [x0, #CTX_FP_FPEXC32_EL2]
-#endif
+#endif /* CTX_INCLUDE_AARCH32_REGS */
 	ret
 endfunc fpregs_context_save
 
@@ -671,7 +701,8 @@
 #if CTX_INCLUDE_AARCH32_REGS
 	ldr	x11, [x0, #CTX_FP_FPEXC32_EL2]
 	msr	fpexc32_el2, x11
-#endif
+#endif /* CTX_INCLUDE_AARCH32_REGS */
+
 	/*
 	 * No explict ISB required here as ERET to
 	 * switch to secure EL1 or non-secure world
@@ -688,13 +719,13 @@
 	 * in ARM DDI 0487F.c page J1-7635 to a default value.
 	 */
 	.macro set_unset_pstate_bits
-        /*
-         * If Data Independent Timing (DIT) functionality is implemented,
-         * always enable DIT in EL3
-         */
+	/*
+	 * If Data Independent Timing (DIT) functionality is implemented,
+	 * always enable DIT in EL3
+	 */
 #if ENABLE_FEAT_DIT
-        mov     x8, #DIT_BIT
-        msr     DIT, x8
+	mov     x8, #DIT_BIT
+	msr     DIT, x8
 #endif /* ENABLE_FEAT_DIT */
 	.endm /* set_unset_pstate_bits */
 
@@ -933,7 +964,7 @@
 	mrs	x17, spsel
 	cmp	x17, #MODE_SP_EL0
 	ASM_ASSERT(eq)
-#endif
+#endif /* ENABLE_ASSERTIONS */
 
 	/* ----------------------------------------------------------
 	 * Save the current SP_EL0 i.e. the EL3 runtime stack which
@@ -971,7 +1002,7 @@
 	isb
 	msr	S3_6_C1_C2_0, x20 /* zcr_el3 */
 sve_not_enabled:
-#endif
+#endif /* IMAGE_BL31 */
 
 #if IMAGE_BL31 && DYNAMIC_WORKAROUND_CVE_2018_3639
 	/* ----------------------------------------------------------
@@ -982,7 +1013,8 @@
 	cbz	x17, 1f
 	blr	x17
 1:
-#endif
+#endif /* IMAGE_BL31 && DYNAMIC_WORKAROUND_CVE_2018_3639 */
+
 	restore_ptw_el1_sys_regs
 
 	/* ----------------------------------------------------------
@@ -1005,10 +1037,12 @@
 	esb
 #else
 	dsb	sy
-#endif
+#endif /* IMAGE_BL31 && RAS_EXTENSION */
+
 #ifdef IMAGE_BL31
 	str	xzr, [sp, #CTX_EL3STATE_OFFSET + CTX_IS_IN_EL3]
-#endif
+#endif /* IMAGE_BL31 */
+
 	exception_return
 
 endfunc el3_exit
diff --git a/lib/el3_runtime/aarch64/context_mgmt.c b/lib/el3_runtime/aarch64/context_mgmt.c
index c69dc95..459ca2c 100644
--- a/lib/el3_runtime/aarch64/context_mgmt.c
+++ b/lib/el3_runtime/aarch64/context_mgmt.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -16,6 +16,7 @@
 #include <bl31/interrupt_mgmt.h>
 #include <common/bl_common.h>
 #include <context.h>
+#include <drivers/arm/gicv3.h>
 #include <lib/el3_runtime/context_mgmt.h>
 #include <lib/el3_runtime/pubsub_events.h>
 #include <lib/extensions/amu.h>
@@ -31,54 +32,158 @@
 
 static void manage_extensions_secure(cpu_context_t *ctx);
 
-/*******************************************************************************
- * Context management library initialisation routine. This library is used by
- * runtime services to share pointers to 'cpu_context' structures for the secure
- * and non-secure states. Management of the structures and their associated
- * memory is not done by the context management library e.g. the PSCI service
- * manages the cpu context used for entry from and exit to the non-secure state.
- * The Secure payload dispatcher service manages the context(s) corresponding to
- * the secure state. It also uses this library to get access to the non-secure
- * state cpu context pointers.
- * Lastly, this library provides the api to make SP_EL3 point to the cpu context
- * which will used for programming an entry into a lower EL. The same context
- * will used to save state upon exception entry from that EL.
- ******************************************************************************/
-void __init cm_init(void)
+/******************************************************************************
+ * This function performs initializations that are specific to SECURE state
+ * and updates the cpu context specified by 'ctx'.
+ *****************************************************************************/
+static void setup_secure_context(cpu_context_t *ctx, const struct entry_point_info *ep)
 {
+	u_register_t scr_el3;
+	el3_state_t *state;
+
+	state = get_el3state_ctx(ctx);
+	scr_el3 = read_ctx_reg(state, CTX_SCR_EL3);
+
+#if defined(IMAGE_BL31) && !defined(SPD_spmd)
 	/*
-	 * The context management library has only global data to intialize, but
-	 * that will be done when the BSS is zeroed out
+	 * SCR_EL3.IRQ, SCR_EL3.FIQ: Enable the physical FIQ and IRQ routing as
+	 * indicated by the interrupt routing model for BL31.
 	 */
+	scr_el3 |= get_scr_el3_from_routing_model(SECURE);
+#endif
+
+#if !CTX_INCLUDE_MTE_REGS || ENABLE_ASSERTIONS
+	/* Get Memory Tagging Extension support level */
+	unsigned int mte = get_armv8_5_mte_support();
+#endif
+	/*
+	 * Allow access to Allocation Tags when CTX_INCLUDE_MTE_REGS
+	 * is set, or when MTE is only implemented at EL0.
+	 */
+#if CTX_INCLUDE_MTE_REGS
+	assert((mte == MTE_IMPLEMENTED_ELX) || (mte == MTE_IMPLEMENTED_ASY));
+	scr_el3 |= SCR_ATA_BIT;
+#else
+	if (mte == MTE_IMPLEMENTED_EL0) {
+		scr_el3 |= SCR_ATA_BIT;
+	}
+#endif /* CTX_INCLUDE_MTE_REGS */
+
+	/* Enable S-EL2 if the next EL is EL2 and S-EL2 is present */
+	if ((GET_EL(ep->spsr) == MODE_EL2) && is_armv8_4_sel2_present()) {
+		if (GET_RW(ep->spsr) != MODE_RW_64) {
+			ERROR("S-EL2 can not be used in AArch32\n.");
+			panic();
+		}
+
+		scr_el3 |= SCR_EEL2_BIT;
+	}
+
+	write_ctx_reg(state, CTX_SCR_EL3, scr_el3);
+
+	manage_extensions_secure(ctx);
+}
+
+#if ENABLE_RME
+/******************************************************************************
+ * This function performs initializations that are specific to REALM state
+ * and updates the cpu context specified by 'ctx'.
+ *****************************************************************************/
+static void setup_realm_context(cpu_context_t *ctx, const struct entry_point_info *ep)
+{
+	u_register_t scr_el3;
+	el3_state_t *state;
+
+	state = get_el3state_ctx(ctx);
+	scr_el3 = read_ctx_reg(state, CTX_SCR_EL3);
+
+	scr_el3 |= SCR_NS_BIT | SCR_NSE_BIT | SCR_EnSCXT_BIT;
+
+	write_ctx_reg(state, CTX_SCR_EL3, scr_el3);
+}
+#endif /* ENABLE_RME */
+
+/******************************************************************************
+ * This function performs initializations that are specific to NON-SECURE state
+ * and updates the cpu context specified by 'ctx'.
+ *****************************************************************************/
+static void setup_ns_context(cpu_context_t *ctx, const struct entry_point_info *ep)
+{
+	u_register_t scr_el3;
+	el3_state_t *state;
+
+	state = get_el3state_ctx(ctx);
+	scr_el3 = read_ctx_reg(state, CTX_SCR_EL3);
+
+	/* SCR_NS: Set the NS bit */
+	scr_el3 |= SCR_NS_BIT;
+
+#if !CTX_INCLUDE_PAUTH_REGS
+	/*
+	 * If the pointer authentication registers aren't saved during world
+	 * switches the value of the registers can be leaked from the Secure to
+	 * the Non-secure world. To prevent this, rather than enabling pointer
+	 * authentication everywhere, we only enable it in the Non-secure world.
+	 *
+	 * If the Secure world wants to use pointer authentication,
+	 * CTX_INCLUDE_PAUTH_REGS must be set to 1.
+	 */
+	scr_el3 |= SCR_API_BIT | SCR_APK_BIT;
+#endif /* !CTX_INCLUDE_PAUTH_REGS */
+
+	/* Allow access to Allocation Tags when MTE is implemented. */
+	scr_el3 |= SCR_ATA_BIT;
+
+#ifdef IMAGE_BL31
+	/*
+	 * SCR_EL3.IRQ, SCR_EL3.FIQ: Enable the physical FIQ and IRQ routing as
+	 *  indicated by the interrupt routing model for BL31.
+	 */
+	scr_el3 |= get_scr_el3_from_routing_model(NON_SECURE);
+#endif
+	write_ctx_reg(state, CTX_SCR_EL3, scr_el3);
+
+	/* Initialize EL2 context registers */
+#if CTX_INCLUDE_EL2_REGS
+
+	/*
+	 * Initialize SCTLR_EL2 context register using Endianness value
+	 * taken from the entrypoint attribute.
+	 */
+	u_register_t sctlr_el2 = (EP_GET_EE(ep->h.attr) != 0U) ? SCTLR_EE_BIT : 0UL;
+	sctlr_el2 |= SCTLR_EL2_RES1;
+	write_ctx_reg(get_el2_sysregs_ctx(ctx), CTX_SCTLR_EL2,
+			sctlr_el2);
+
+	/*
+	 * The GICv3 driver initializes the ICC_SRE_EL2 register during
+	 * platform setup. Use the same setting for the corresponding
+	 * context register to make sure the correct bits are set when
+	 * restoring NS context.
+	 */
+	u_register_t icc_sre_el2 = read_icc_sre_el2();
+	icc_sre_el2 |= (ICC_SRE_DIB_BIT | ICC_SRE_DFB_BIT);
+	icc_sre_el2 |= (ICC_SRE_EN_BIT | ICC_SRE_SRE_BIT);
+	write_ctx_reg(get_el2_sysregs_ctx(ctx), CTX_ICC_SRE_EL2,
+			icc_sre_el2);
+#endif /* CTX_INCLUDE_EL2_REGS */
 }
 
 /*******************************************************************************
- * The following function initializes the cpu_context 'ctx' for
- * first use, and sets the initial entrypoint state as specified by the
- * entry_point_info structure.
- *
- * The security state to initialize is determined by the SECURE attribute
- * of the entry_point_info.
+ * The following function performs initialization of the cpu_context 'ctx'
+ * for first use that is common to all security states, and sets the
+ * initial entrypoint state as specified by the entry_point_info structure.
  *
  * The EE and ST attributes are used to configure the endianness and secure
  * timer availability for the new execution context.
- *
- * To prepare the register state for entry call cm_prepare_el3_exit() and
- * el3_exit(). For Secure-EL1 cm_prepare_el3_exit() is equivalent to
- * cm_el1_sysregs_context_restore().
  ******************************************************************************/
-void cm_setup_context(cpu_context_t *ctx, const entry_point_info_t *ep)
+static void setup_context_common(cpu_context_t *ctx, const entry_point_info_t *ep)
 {
-	unsigned int security_state;
 	u_register_t scr_el3;
 	el3_state_t *state;
 	gp_regs_t *gp_regs;
 	u_register_t sctlr_elx, actlr_elx;
 
-	assert(ctx != NULL);
-
-	security_state = GET_SECURITY_STATE(ep->h.attr);
-
 	/* Clear any residual register values from the context */
 	zeromem(ctx, sizeof(*ctx));
 
@@ -93,26 +198,7 @@
 	 */
 	scr_el3 = read_scr();
 	scr_el3 &= ~(SCR_NS_BIT | SCR_RW_BIT | SCR_FIQ_BIT | SCR_IRQ_BIT |
-			SCR_ST_BIT | SCR_HCE_BIT);
-
-#if ENABLE_RME
-	/* When RME support is enabled, clear the NSE bit as well. */
-	scr_el3 &= ~SCR_NSE_BIT;
-#endif /* ENABLE_RME */
-
-	/*
-	 * SCR_NS: Set the security state of the next EL.
-	 */
-	if (security_state == NON_SECURE) {
-		scr_el3 |= SCR_NS_BIT;
-	}
-
-#if ENABLE_RME
-	/* Check for realm state if RME support enabled. */
-	if (security_state == REALM) {
-		scr_el3 |= SCR_NS_BIT | SCR_NSE_BIT | SCR_EnSCXT_BIT;
-	}
-#endif /* ENABLE_RME */
+			SCR_ST_BIT | SCR_HCE_BIT | SCR_NSE_BIT);
 
 	/*
 	 * SCR_EL3.RW: Set the execution state, AArch32 or AArch64, for next
@@ -121,6 +207,7 @@
 	if (GET_RW(ep->spsr) == MODE_RW_64) {
 		scr_el3 |= SCR_RW_BIT;
 	}
+
 	/*
 	 * SCR_EL3.ST: Traps Secure EL1 accesses to the Counter-timer Physical
 	 *  Secure timer registers to EL3, from AArch64 state only, if specified
@@ -149,8 +236,8 @@
 #if !HANDLE_EA_EL3_FIRST
 	/*
 	 * SCR_EL3.EA: Do not route External Abort and SError Interrupt External
-	 *  to EL3 when executing at a lower EL. When executing at EL3, External
-	 *  Aborts are taken to EL3.
+	 * to EL3 when executing at a lower EL. When executing at EL3, External
+	 * Aborts are taken to EL3.
 	 */
 	scr_el3 &= ~SCR_EA_BIT;
 #endif
@@ -160,68 +247,11 @@
 	scr_el3 |= SCR_FIEN_BIT;
 #endif
 
-#if !CTX_INCLUDE_PAUTH_REGS
 	/*
-	 * If the pointer authentication registers aren't saved during world
-	 * switches the value of the registers can be leaked from the Secure to
-	 * the Non-secure world. To prevent this, rather than enabling pointer
-	 * authentication everywhere, we only enable it in the Non-secure world.
-	 *
-	 * If the Secure world wants to use pointer authentication,
-	 * CTX_INCLUDE_PAUTH_REGS must be set to 1.
+	 * CPTR_EL3 was initialized out of reset, copy that value to the
+	 * context register.
 	 */
-	if (security_state == NON_SECURE) {
-		scr_el3 |= SCR_API_BIT | SCR_APK_BIT;
-	}
-#endif /* !CTX_INCLUDE_PAUTH_REGS */
-
-#if !CTX_INCLUDE_MTE_REGS || ENABLE_ASSERTIONS
-	/* Get Memory Tagging Extension support level */
-	unsigned int mte = get_armv8_5_mte_support();
-#endif
-	/*
-	 * Enable MTE support. Support is enabled unilaterally for the normal
-	 * world, and only for the secure world when CTX_INCLUDE_MTE_REGS is
-	 * set.
-	 */
-#if CTX_INCLUDE_MTE_REGS
-	assert((mte == MTE_IMPLEMENTED_ELX) || (mte == MTE_IMPLEMENTED_ASY));
-	scr_el3 |= SCR_ATA_BIT;
-#else
-	/*
-	 * When MTE is only implemented at EL0, it can be enabled
-	 * across both worlds as no MTE registers are used.
-	 */
-	if ((mte == MTE_IMPLEMENTED_EL0) ||
-	/*
-	 * When MTE is implemented at all ELs, it can be only enabled
-	 * in Non-Secure world without register saving.
-	 */
-	  (((mte == MTE_IMPLEMENTED_ELX) || (mte == MTE_IMPLEMENTED_ASY)) &&
-	    (security_state == NON_SECURE))) {
-		scr_el3 |= SCR_ATA_BIT;
-	}
-#endif	/* CTX_INCLUDE_MTE_REGS */
-
-#ifdef IMAGE_BL31
-	/*
-	 * SCR_EL3.IRQ, SCR_EL3.FIQ: Enable the physical FIQ and IRQ routing as
-	 *  indicated by the interrupt routing model for BL31.
-	 *
-	 * TODO: The interrupt routing model code is not updated for REALM
-	 * state. Use the default values of IRQ = FIQ = 0 for REALM security
-	 * state for now.
-	 */
-	if (security_state != REALM) {
-		scr_el3 |= get_scr_el3_from_routing_model(security_state);
-	}
-#endif
-
-	/* Save the initialized value of CPTR_EL3 register */
 	write_ctx_reg(get_el3state_ctx(ctx), CTX_CPTR_EL3, read_cptr_el3());
-	if (security_state == SECURE) {
-		manage_extensions_secure(ctx);
-	}
 
 	/*
 	 * SCR_EL3.HCE: Enable HVC instructions if next execution state is
@@ -249,16 +279,6 @@
 		}
 	}
 
-	/* Enable S-EL2 if the next EL is EL2 and security state is secure */
-	if ((security_state == SECURE) && (GET_EL(ep->spsr) == MODE_EL2)) {
-		if (GET_RW(ep->spsr) != MODE_RW_64) {
-			ERROR("S-EL2 can not be used in AArch32.");
-			panic();
-		}
-
-		scr_el3 |= SCR_EEL2_BIT;
-	}
-
 	/*
 	 * FEAT_AMUv1p1 virtual offset registers are only accessible from EL3
 	 * and EL2, when clear, this bit traps accesses from EL2 so we set it
@@ -362,6 +382,66 @@
 }
 
 /*******************************************************************************
+ * Context management library initialization routine. This library is used by
+ * runtime services to share pointers to 'cpu_context' structures for secure
+ * non-secure and realm states. Management of the structures and their associated
+ * memory is not done by the context management library e.g. the PSCI service
+ * manages the cpu context used for entry from and exit to the non-secure state.
+ * The Secure payload dispatcher service manages the context(s) corresponding to
+ * the secure state. It also uses this library to get access to the non-secure
+ * state cpu context pointers.
+ * Lastly, this library provides the API to make SP_EL3 point to the cpu context
+ * which will be used for programming an entry into a lower EL. The same context
+ * will be used to save state upon exception entry from that EL.
+ ******************************************************************************/
+void __init cm_init(void)
+{
+	/*
+	 * The context management library has only global data to intialize, but
+	 * that will be done when the BSS is zeroed out.
+	 */
+}
+
+/*******************************************************************************
+ * This is the high-level function used to initialize the cpu_context 'ctx' for
+ * first use. It performs initializations that are common to all security states
+ * and initializations specific to the security state specified in 'ep'
+ ******************************************************************************/
+void cm_setup_context(cpu_context_t *ctx, const entry_point_info_t *ep)
+{
+	unsigned int security_state;
+
+	assert(ctx != NULL);
+
+	/*
+	 * Perform initializations that are common
+	 * to all security states
+	 */
+	setup_context_common(ctx, ep);
+
+	security_state = GET_SECURITY_STATE(ep->h.attr);
+
+	/* Perform security state specific initializations */
+	switch (security_state) {
+	case SECURE:
+		setup_secure_context(ctx, ep);
+		break;
+#if ENABLE_RME
+	case REALM:
+		setup_realm_context(ctx, ep);
+		break;
+#endif
+	case NON_SECURE:
+		setup_ns_context(ctx, ep);
+		break;
+	default:
+		ERROR("Invalid security state\n");
+		panic();
+		break;
+	}
+}
+
+/*******************************************************************************
  * Enable architecture extensions on first entry to Non-secure world.
  * When EL2 is implemented but unused `el2_unused` is non-zero, otherwise
  * it is zero.
@@ -738,6 +818,40 @@
 #endif /* CTX_INCLUDE_EL2_REGS */
 
 /*******************************************************************************
+ * This function is used to exit to Non-secure world. If CTX_INCLUDE_EL2_REGS
+ * is enabled, it restores EL1 and EL2 sysreg contexts instead of directly
+ * updating EL1 and EL2 registers. Otherwise, it calls the generic
+ * cm_prepare_el3_exit function.
+ ******************************************************************************/
+void cm_prepare_el3_exit_ns(void)
+{
+#if CTX_INCLUDE_EL2_REGS
+	cpu_context_t *ctx = cm_get_context(NON_SECURE);
+	assert(ctx != NULL);
+
+	/*
+	 * Currently some extensions are configured using
+	 * direct register updates. Therefore, do this here
+	 * instead of when setting up context.
+	 */
+	manage_extensions_nonsecure(0, ctx);
+
+	/*
+	 * Set the NS bit to be able to access the ICC_SRE_EL2
+	 * register when restoring context.
+	 */
+	write_scr_el3(read_scr_el3() | SCR_NS_BIT);
+
+	/* Restore EL2 and EL1 sysreg contexts */
+	cm_el2_sysregs_context_restore(NON_SECURE);
+	cm_el1_sysregs_context_restore(NON_SECURE);
+	cm_set_next_eret_context(NON_SECURE);
+#else
+	cm_prepare_el3_exit(NON_SECURE);
+#endif /* CTX_INCLUDE_EL2_REGS */
+}
+
+/*******************************************************************************
  * The next four functions are used by runtime services to save and restore
  * EL1 context on the 'cpu_context' structure for the specified security
  * state.
diff --git a/lib/extensions/mpam/mpam.c b/lib/extensions/mpam/mpam.c
index 65601dd..884d480 100644
--- a/lib/extensions/mpam/mpam.c
+++ b/lib/extensions/mpam/mpam.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -27,7 +27,6 @@
 	/*
 	 * If EL2 is implemented but unused, disable trapping to EL2 when lower
 	 * ELs access their own MPAM registers.
-	 * If EL2 is implemented and used, enable trapping to EL2.
 	 */
 	if (el2_unused) {
 		write_mpam2_el2(0ULL);
@@ -35,12 +34,5 @@
 		if ((read_mpamidr_el1() & MPAMIDR_HAS_HCR_BIT) != 0U) {
 			write_mpamhcr_el2(0ULL);
 		}
-	} else {
-		write_mpam2_el2(MPAM2_EL2_TRAPMPAM0EL1 |
-				MPAM2_EL2_TRAPMPAM1EL1);
-
-		if ((read_mpamidr_el1() & MPAMIDR_HAS_HCR_BIT) != 0U) {
-			write_mpamhcr_el2(MPAMHCR_EL2_TRAP_MPAMIDR_EL1);
-		}
 	}
 }
diff --git a/lib/psci/psci_on.c b/lib/psci/psci_on.c
index dd48e10..c70b377 100644
--- a/lib/psci/psci_on.c
+++ b/lib/psci/psci_on.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -229,5 +229,5 @@
 	 * information that we had stashed away during the cpu_on
 	 * call to set this cpu on its way.
 	 */
-	cm_prepare_el3_exit(NON_SECURE);
+	cm_prepare_el3_exit_ns();
 }
diff --git a/lib/psci/psci_suspend.c b/lib/psci/psci_suspend.c
index da9f328..ffe3a91 100644
--- a/lib/psci/psci_suspend.c
+++ b/lib/psci/psci_suspend.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -331,5 +331,5 @@
 	 * information that we had stashed away during the suspend
 	 * call to set this cpu on its way.
 	 */
-	cm_prepare_el3_exit(NON_SECURE);
+	cm_prepare_el3_exit_ns();
 }
diff --git a/make_helpers/arch_features.mk b/make_helpers/arch_features.mk
new file mode 100644
index 0000000..01e3e09
--- /dev/null
+++ b/make_helpers/arch_features.mk
@@ -0,0 +1,36 @@
+#
+# Copyright (c) 2022, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# This file lists all the checks related to the Architectural Feature
+# Enablement flags, based on the Architectural version.
+
+# Enable the features which are mandatory from ARCH version 8.1 and upwards.
+ifeq "8.1" "$(word 1, $(sort 8.1 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
+ENABLE_FEAT_PAN		=	1
+ENABLE_FEAT_VHE		=	1
+endif
+
+# Enable the features which are mandatory from ARCH version 8.4 and upwards.
+ifeq "8.4" "$(word 1, $(sort 8.4 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
+ENABLE_FEAT_DIT		=	1
+ENABLE_FEAT_SEL2	=	1
+endif
+
+# Enable the features which are mandatory from ARCH version 8.5 and upwards.
+ifeq "8.5" "$(word 1, $(sort 8.5 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
+ENABLE_FEAT_SB		=	1
+endif
+
+# Enable the features which are mandatory from ARCH version 8.6 and upwards.
+ifeq "8.6" "$(word 1, $(sort 8.6 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
+ENABLE_FEAT_FGT		=	1
+ENABLE_FEAT_ECV		=	1
+endif
+
+# Enable the features which are mandatory from ARCH version 8.7 and upwards.
+ifeq "8.7" "$(word 1, $(sort 8.7 $(ARM_ARCH_MAJOR).$(ARM_ARCH_MINOR)))"
+ENABLE_FEAT_HCX		=	1
+endif
diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index 910ffdf..99f44a4 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -133,12 +133,18 @@
 # Use BRANCH_PROTECTION to enable PAUTH.
 ENABLE_PAUTH			:= 0
 
-# Flag to enable access to the HCRX_EL2 register by setting SCR_EL3.HXEn.
-ENABLE_FEAT_HCX			:= 0
-
 # Flag to enable access to the HAFGRTR_EL2 register
 ENABLE_FEAT_AMUv1		:= 0
 
+# Flag to enable AMUv1p1 extension.
+ENABLE_FEAT_AMUv1p1		:= 0
+
+# Flag to enable CSV2_2 extension.
+ENABLE_FEAT_CSV2_2 		:= 0
+
+# Flag to enable access to the HCRX_EL2 register by setting SCR_EL3.HXEn.
+ENABLE_FEAT_HCX			:= 0
+
 # Flag to enable access to the HDFGRTR_EL2 register
 ENABLE_FEAT_FGT			:= 0
 
@@ -148,6 +154,21 @@
 # Flag to enable use of the DIT feature.
 ENABLE_FEAT_DIT			:= 0
 
+# Flag to enable access to Privileged Access Never bit of PSTATE.
+ENABLE_FEAT_PAN			:= 0
+
+# Flag to enable access to the Random Number Generator registers
+ENABLE_FEAT_RNG			:= 0
+
+# Flag to enable Speculation Barrier Instruction
+ENABLE_FEAT_SB			:= 0
+
+# Flag to enable Secure EL-2 feature.
+ENABLE_FEAT_SEL2		:= 0
+
+# Flag to enable Virtualization Host Extensions
+ENABLE_FEAT_VHE 		:= 0
+
 # By default BL31 encryption disabled
 ENCRYPT_BL31			:= 0
 
@@ -166,6 +187,9 @@
 # Fault injection support
 FAULT_INJECTION_SUPPORT		:= 0
 
+# Flag to enable architectural features detection mechanism
+FEATURE_DETECTION		:= 0
+
 # Byte alignment that each component in FIP is aligned to
 FIP_ALIGN			:= 0
 
diff --git a/plat/arm/board/corstone1000/common/corstone1000_bl2_mem_params_desc.c b/plat/arm/board/corstone1000/common/corstone1000_bl2_mem_params_desc.c
index 3ee396c..fe521a9 100644
--- a/plat/arm/board/corstone1000/common/corstone1000_bl2_mem_params_desc.c
+++ b/plat/arm/board/corstone1000/common/corstone1000_bl2_mem_params_desc.c
@@ -57,8 +57,8 @@
 	{
 		.image_id = TOS_FW_CONFIG_ID,
 		.image_info.image_base = CORSTONE1000_TOS_FW_CONFIG_BASE,
-		.image_info.image_max_size = CORSTONE1000_TOS_FW_CONFIG_LIMIT - \
-			CORSTONE1000_TOS_FW_CONFIG_BASE,
+		.image_info.image_max_size = (CORSTONE1000_TOS_FW_CONFIG_LIMIT -
+					      CORSTONE1000_TOS_FW_CONFIG_BASE),
 		SET_STATIC_PARAM_HEAD(ep_info, PARAM_IMAGE_BINARY,
 			VERSION_2, entry_point_info_t, SECURE | NON_EXECUTABLE),
 		SET_STATIC_PARAM_HEAD(image_info, PARAM_IMAGE_BINARY,
diff --git a/plat/arm/board/corstone1000/common/corstone1000_plat.c b/plat/arm/board/corstone1000/common/corstone1000_plat.c
index a96baae..0235f8b 100644
--- a/plat/arm/board/corstone1000/common/corstone1000_plat.c
+++ b/plat/arm/board/corstone1000/common/corstone1000_plat.c
@@ -34,12 +34,13 @@
 {
 	const struct plat_io_policy *policy;
 	/*
-	* metadata for firmware update is written at 0x0000 offset of the flash.
-	* PLAT_ARM_BOOT_BANK_FLAG contains the boot bank that TF-M is booted.
-	* As per firmware update spec, at a given point of time, only one bank is active.
-	* This means, TF-A should boot from the same bank as TF-M.
-	*/
+	 * metadata for firmware update is written at 0x0000 offset of the flash.
+	 * PLAT_ARM_BOOT_BANK_FLAG contains the boot bank that TF-M is booted.
+	 * As per firmware update spec, at a given point of time, only one bank
+	 * is active. This means, TF-A should boot from the same bank as TF-M.
+	 */
 	volatile uint32_t *boot_bank_flag = (uint32_t *)(PLAT_ARM_BOOT_BANK_FLAG);
+
 	if (*boot_bank_flag > 1) {
 		VERBOSE("Boot_bank is set higher than possible values");
 	}
diff --git a/plat/arm/board/corstone1000/common/corstone1000_pm.c b/plat/arm/board/corstone1000/common/corstone1000_pm.c
index 98dea79..4b0a791 100644
--- a/plat/arm/board/corstone1000/common/corstone1000_pm.c
+++ b/plat/arm/board/corstone1000/common/corstone1000_pm.c
@@ -21,8 +21,8 @@
 	*(watchdog_val_reg) = SECURE_WATCHDOG_COUNTDOWN_VAL;
 	*watchdog_ctrl_reg = SECURE_WATCHDOG_MASK_ENABLE;
 	while (1) {
-		 wfi();
-	 }
+		wfi();
+	}
 }
 
 plat_psci_ops_t plat_arm_psci_pm_ops = {
diff --git a/plat/arm/board/corstone1000/common/corstone1000_trusted_boot.c b/plat/arm/board/corstone1000/common/corstone1000_trusted_boot.c
index cec7332..7e8fbb2 100644
--- a/plat/arm/board/corstone1000/common/corstone1000_trusted_boot.c
+++ b/plat/arm/board/corstone1000/common/corstone1000_trusted_boot.c
@@ -38,8 +38,8 @@
  */
 int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr)
 {
-    *nv_ctr = CORSTONE1000_FW_NVCTR_VAL;
-    return 0;
+	*nv_ctr = CORSTONE1000_FW_NVCTR_VAL;
+	return 0;
 }
 
 /*
@@ -49,5 +49,5 @@
  */
 int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr)
 {
-    return 0;
+	return 0;
 }
diff --git a/plat/arm/board/corstone1000/common/include/platform_def.h b/plat/arm/board/corstone1000/common/include/platform_def.h
index 2523d72..584d485 100644
--- a/plat/arm/board/corstone1000/common/include/platform_def.h
+++ b/plat/arm/board/corstone1000/common/include/platform_def.h
@@ -16,11 +16,11 @@
 #include <plat/common/common_def.h>
 #include <plat/arm/soc/common/soc_css_def.h>
 
-#define ARM_ROTPK_HEADER_LEN					19
-#define ARM_ROTPK_HASH_LEN					32
+#define ARM_ROTPK_HEADER_LEN		19
+#define ARM_ROTPK_HASH_LEN		32
 
 /* Special value used to verify platform parameters from BL2 to BL31 */
-#define ARM_BL31_PLAT_PARAM_VAL					ULL(0x0f1e2d3c4b5a6978)
+#define ARM_BL31_PLAT_PARAM_VAL		ULL(0x0f1e2d3c4b5a6978)
 
 /* PL011 UART related constants */
 #ifdef V2M_IOFPGA_UART0_CLK_IN_HZ
@@ -31,368 +31,324 @@
 #undef V2M_IOFPGA_UART1_CLK_IN_HZ
 #endif
 
-#define V2M_IOFPGA_UART0_CLK_IN_HZ				50000000
-#define V2M_IOFPGA_UART1_CLK_IN_HZ				50000000
+#define V2M_IOFPGA_UART0_CLK_IN_HZ	50000000
+#define V2M_IOFPGA_UART1_CLK_IN_HZ	50000000
 
 /* Core/Cluster/Thread counts for corstone1000 */
-#define CORSTONE1000_CLUSTER_COUNT				U(1)
-#define CORSTONE1000_MAX_CPUS_PER_CLUSTER			U(4)
-#define CORSTONE1000_MAX_PE_PER_CPU				U(1)
-#define CORSTONE1000_PRIMARY_CPU				U(0)
+#define CORSTONE1000_CLUSTER_COUNT		U(1)
+#define CORSTONE1000_MAX_CPUS_PER_CLUSTER	U(4)
+#define CORSTONE1000_MAX_PE_PER_CPU		U(1)
+#define CORSTONE1000_PRIMARY_CPU		U(0)
 
-#define PLAT_ARM_CLUSTER_COUNT					CORSTONE1000_CLUSTER_COUNT
+#define PLAT_ARM_CLUSTER_COUNT		CORSTONE1000_CLUSTER_COUNT
 
-#define PLATFORM_CORE_COUNT					(PLAT_ARM_CLUSTER_COUNT *      \
-								CORSTONE1000_MAX_CPUS_PER_CLUSTER *  \
-								CORSTONE1000_MAX_PE_PER_CPU)
+#define PLATFORM_CORE_COUNT		(PLAT_ARM_CLUSTER_COUNT * \
+					 CORSTONE1000_MAX_CPUS_PER_CLUSTER * \
+					 CORSTONE1000_MAX_PE_PER_CPU)
 
 /* UART related constants */
-#define PLAT_ARM_BOOT_UART_BASE					0x1a510000
-#define PLAT_ARM_BOOT_UART_CLK_IN_HZ				V2M_IOFPGA_UART0_CLK_IN_HZ
-#define PLAT_ARM_RUN_UART_BASE					0x1a520000
-#define PLAT_ARM_RUN_UART_CLK_IN_HZ				V2M_IOFPGA_UART1_CLK_IN_HZ
-#define ARM_CONSOLE_BAUDRATE					115200
-#define PLAT_ARM_CRASH_UART_BASE				PLAT_ARM_RUN_UART_BASE
-#define PLAT_ARM_CRASH_UART_CLK_IN_HZ				PLAT_ARM_RUN_UART_CLK_IN_HZ
+#define PLAT_ARM_BOOT_UART_BASE		0x1a510000
+#define PLAT_ARM_BOOT_UART_CLK_IN_HZ	V2M_IOFPGA_UART0_CLK_IN_HZ
+#define PLAT_ARM_RUN_UART_BASE		0x1a520000
+#define PLAT_ARM_RUN_UART_CLK_IN_HZ	V2M_IOFPGA_UART1_CLK_IN_HZ
+#define ARM_CONSOLE_BAUDRATE		115200
+#define PLAT_ARM_CRASH_UART_BASE	PLAT_ARM_RUN_UART_BASE
+#define PLAT_ARM_CRASH_UART_CLK_IN_HZ	PLAT_ARM_RUN_UART_CLK_IN_HZ
 
 /* Memory related constants */
 
 /* SRAM (CVM) memory layout
  *
  * <ARM_TRUSTED_SRAM_BASE>
- *
- *         partition size: sizeof(meminfo_t) = 16 bytes
- *
- *         content: memory info area used by the next BL
+ *	partition size: sizeof(meminfo_t) = 16 bytes
+ *	content: memory info area used by the next BL
  *
  * <ARM_FW_CONFIG_BASE>
- *
- *         partition size: 4080 bytes
+ *	partition size: 4080 bytes
  *
  * <ARM_BL2_MEM_DESC_BASE>
- *
- *         partition size: 4 KB
- *
- *         content:
- *
- *             Area where BL2 copies the images descriptors
+ *	partition size: 4 KB
+ *	content: Area where BL2 copies the images descriptors
  *
  * <ARM_BL_RAM_BASE> = <BL32_BASE>
- *
- *         partition size: 688 KB
- *
- *         content:
- *
- *             BL32 (optee-os)
+ *	partition size: 688 KB
+ *	content: BL32 (optee-os)
  *
  * <CORSTONE1000_TOS_FW_CONFIG_BASE> = 0x20ae000
- *
- *         partition size: 8 KB
- *
- *         content:
- *
- *             BL32 config (TOS_FW_CONFIG)
+ *	partition size: 8 KB
+ *	content: BL32 config (TOS_FW_CONFIG)
  *
  * <BL31_BASE>
- *
- *         partition size: 140 KB
- *
- *         content:
- *
- *             BL31
+ *	partition size: 140 KB
+ *	content: BL31
  *
  * <BL2_SIGNATURE_BASE>
- *
- *     partition size: 4 KB
- *
- *     content:
- *
- *         MCUBOOT data needed to verify TF-A BL2
+ *	partition size: 4 KB
+ *	content: MCUBOOT data needed to verify TF-A BL2
  *
  * <BL2_BASE>
- *
- *     partition size: 176 KB
- *
- *         content:
- *
- *             BL2
+ *	partition size: 176 KB
+ *	content: BL2
  *
  * <ARM_NS_SHARED_RAM_BASE> = <ARM_TRUSTED_SRAM_BASE> + 1 MB
- *
- *         partition size: 512 KB
- *
- *         content:
- *
- *             BL33 (u-boot)
+ *	partition size: 512 KB
+ *	content: BL33 (u-boot)
  */
 
 /* DDR memory */
-#define ARM_DRAM1_BASE						UL(0x80000000)
-#define ARM_DRAM1_SIZE                 				(SZ_2G) /* 2GB*/
-#define ARM_DRAM1_END						(ARM_DRAM1_BASE +	\
-								ARM_DRAM1_SIZE - 1)
+#define ARM_DRAM1_BASE		UL(0x80000000)
+#define ARM_DRAM1_SIZE		(SZ_2G)  /* 2GB*/
+#define ARM_DRAM1_END		(ARM_DRAM1_BASE + ARM_DRAM1_SIZE - 1)
 
 /* DRAM1 and DRAM2 are the same for corstone1000 */
-#define ARM_DRAM2_BASE						ARM_DRAM1_BASE
-#define ARM_DRAM2_SIZE						ARM_DRAM1_SIZE
-#define ARM_DRAM2_END						ARM_DRAM1_END
+#define ARM_DRAM2_BASE		ARM_DRAM1_BASE
+#define ARM_DRAM2_SIZE		ARM_DRAM1_SIZE
+#define ARM_DRAM2_END		ARM_DRAM1_END
 
-#define ARM_NS_DRAM1_BASE					ARM_DRAM1_BASE
-#define ARM_NS_DRAM1_SIZE					ARM_DRAM1_SIZE
-#define ARM_NS_DRAM1_END					(ARM_NS_DRAM1_BASE +\
-								ARM_NS_DRAM1_SIZE - 1)
+#define ARM_NS_DRAM1_BASE	ARM_DRAM1_BASE
+#define ARM_NS_DRAM1_SIZE	ARM_DRAM1_SIZE
+#define ARM_NS_DRAM1_END	(ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE - 1)
 
 /* The first 8 KB of Trusted SRAM are used as shared memory */
-#define ARM_TRUSTED_SRAM_BASE					UL(0x02000000)
-#define ARM_SHARED_RAM_SIZE					(SZ_8K)  /* 8 KB */
-#define ARM_SHARED_RAM_BASE					ARM_TRUSTED_SRAM_BASE
+#define ARM_TRUSTED_SRAM_BASE	UL(0x02000000)
+#define ARM_SHARED_RAM_SIZE	(SZ_8K)  /* 8 KB */
+#define ARM_SHARED_RAM_BASE	ARM_TRUSTED_SRAM_BASE
 
 /* The remaining Trusted SRAM is used to load the BL images */
-#define TOTAL_SRAM_SIZE						(SZ_4M) /* 4 MB */
+#define TOTAL_SRAM_SIZE		(SZ_4M)  /* 4 MB */
 
-/* Last 512KB of CVM is allocated for shared RAM
- * as an example openAMP */
-#define ARM_NS_SHARED_RAM_SIZE					(512 * SZ_1K)
+/* Last 512KB of CVM is allocated for shared RAM as an example openAMP */
+#define ARM_NS_SHARED_RAM_SIZE	(512 * SZ_1K)
 
-#define PLAT_ARM_TRUSTED_SRAM_SIZE				(TOTAL_SRAM_SIZE - \
-								ARM_NS_SHARED_RAM_SIZE - \
-								ARM_SHARED_RAM_SIZE)
+#define PLAT_ARM_TRUSTED_SRAM_SIZE	(TOTAL_SRAM_SIZE - \
+					 ARM_NS_SHARED_RAM_SIZE - \
+					 ARM_SHARED_RAM_SIZE)
 
-#define PLAT_ARM_MAX_BL2_SIZE					(180 * SZ_1K)  /* 180 KB */
+#define PLAT_ARM_MAX_BL2_SIZE	(180 * SZ_1K)  /* 180 KB */
 
-#define PLAT_ARM_MAX_BL31_SIZE					(140 * SZ_1K)  /* 140 KB */
+#define PLAT_ARM_MAX_BL31_SIZE	(140 * SZ_1K)  /* 140 KB */
 
-#define ARM_BL_RAM_BASE						(ARM_SHARED_RAM_BASE +  \
-								ARM_SHARED_RAM_SIZE)
-#define ARM_BL_RAM_SIZE						(PLAT_ARM_TRUSTED_SRAM_SIZE - \
-								ARM_SHARED_RAM_SIZE)
+#define ARM_BL_RAM_BASE		(ARM_SHARED_RAM_BASE + ARM_SHARED_RAM_SIZE)
+#define ARM_BL_RAM_SIZE		(PLAT_ARM_TRUSTED_SRAM_SIZE - \
+				 ARM_SHARED_RAM_SIZE)
 
-#define BL2_SIGNATURE_SIZE					(SZ_4K)  /* 4 KB */
+#define BL2_SIGNATURE_SIZE	(SZ_4K)  /* 4 KB */
 
-#define BL2_SIGNATURE_BASE					(BL2_LIMIT - \
-								PLAT_ARM_MAX_BL2_SIZE)
-#define BL2_BASE						(BL2_LIMIT - \
-								PLAT_ARM_MAX_BL2_SIZE + \
-								BL2_SIGNATURE_SIZE)
-#define BL2_LIMIT						(ARM_BL_RAM_BASE + \
-								ARM_BL_RAM_SIZE)
+#define BL2_SIGNATURE_BASE	(BL2_LIMIT - PLAT_ARM_MAX_BL2_SIZE)
+#define BL2_BASE		(BL2_LIMIT - \
+				 PLAT_ARM_MAX_BL2_SIZE + \
+				 BL2_SIGNATURE_SIZE)
+#define BL2_LIMIT		(ARM_BL_RAM_BASE + ARM_BL_RAM_SIZE)
 
-#define BL31_BASE						(BL2_SIGNATURE_BASE - \
-								PLAT_ARM_MAX_BL31_SIZE)
-#define BL31_LIMIT						BL2_SIGNATURE_BASE
+#define BL31_BASE		(BL2_SIGNATURE_BASE - PLAT_ARM_MAX_BL31_SIZE)
+#define BL31_LIMIT		BL2_SIGNATURE_BASE
 
-#define CORSTONE1000_TOS_FW_CONFIG_BASE				(BL31_BASE - \
-								CORSTONE1000_TOS_FW_CONFIG_SIZE)
-#define CORSTONE1000_TOS_FW_CONFIG_SIZE				(SZ_8K)  /* 8 KB */
-#define CORSTONE1000_TOS_FW_CONFIG_LIMIT			BL31_BASE
+#define CORSTONE1000_TOS_FW_CONFIG_BASE		(BL31_BASE - \
+						 CORSTONE1000_TOS_FW_CONFIG_SIZE)
+#define CORSTONE1000_TOS_FW_CONFIG_SIZE		(SZ_8K)  /* 8 KB */
+#define CORSTONE1000_TOS_FW_CONFIG_LIMIT	BL31_BASE
 
-#define BL32_BASE						ARM_BL_RAM_BASE
-#define PLAT_ARM_MAX_BL32_SIZE					(CORSTONE1000_TOS_FW_CONFIG_BASE - \
-								BL32_BASE)
+#define BL32_BASE		ARM_BL_RAM_BASE
+#define PLAT_ARM_MAX_BL32_SIZE	(CORSTONE1000_TOS_FW_CONFIG_BASE - BL32_BASE)
 
-#define BL32_LIMIT						(BL32_BASE + \
-								PLAT_ARM_MAX_BL32_SIZE)
+#define BL32_LIMIT		(BL32_BASE + PLAT_ARM_MAX_BL32_SIZE)
 
 /* SPD_spmd settings */
 
-#define PLAT_ARM_SPMC_BASE					BL32_BASE
-#define PLAT_ARM_SPMC_SIZE					PLAT_ARM_MAX_BL32_SIZE
+#define PLAT_ARM_SPMC_BASE	BL32_BASE
+#define PLAT_ARM_SPMC_SIZE	PLAT_ARM_MAX_BL32_SIZE
 
 /* NS memory */
 
 /* The last 512KB of the SRAM is allocated as shared memory */
-#define ARM_NS_SHARED_RAM_BASE					(ARM_TRUSTED_SRAM_BASE + TOTAL_SRAM_SIZE - \
-								(PLAT_ARM_MAX_BL31_SIZE + \
-								PLAT_ARM_MAX_BL32_SIZE))
+#define ARM_NS_SHARED_RAM_BASE	(ARM_TRUSTED_SRAM_BASE + TOTAL_SRAM_SIZE - \
+				 (PLAT_ARM_MAX_BL31_SIZE + \
+				  PLAT_ARM_MAX_BL32_SIZE))
 
-#define BL33_BASE						ARM_DRAM1_BASE
-#define PLAT_ARM_MAX_BL33_SIZE					(12 * SZ_1M) /* 12 MB*/
-#define BL33_LIMIT						(ARM_DRAM1_BASE + PLAT_ARM_MAX_BL33_SIZE)
+#define BL33_BASE		ARM_DRAM1_BASE
+#define PLAT_ARM_MAX_BL33_SIZE	(12 * SZ_1M)  /* 12 MB*/
+#define BL33_LIMIT		(ARM_DRAM1_BASE + PLAT_ARM_MAX_BL33_SIZE)
 
 /* end of the definition of SRAM memory layout */
 
 /* NOR Flash */
 
-#define PLAT_ARM_BOOT_BANK_FLAG					UL(0x08002000)
-#define PLAT_ARM_FIP_BASE_BANK0					UL(0x081EF000)
-#define PLAT_ARM_FIP_BASE_BANK1					UL(0x0916F000)
-#define PLAT_ARM_FIP_MAX_SIZE					UL(0x1ff000)  /* 1.996 MB */
+#define PLAT_ARM_BOOT_BANK_FLAG		UL(0x08002000)
+#define PLAT_ARM_FIP_BASE_BANK0		UL(0x081EF000)
+#define PLAT_ARM_FIP_BASE_BANK1		UL(0x0916F000)
+#define PLAT_ARM_FIP_MAX_SIZE		UL(0x1ff000)  /* 1.996 MB */
 
-#define PLAT_ARM_NVM_BASE					V2M_FLASH0_BASE
-#define PLAT_ARM_NVM_SIZE					(SZ_32M)  /* 32 MB */
+#define PLAT_ARM_NVM_BASE		V2M_FLASH0_BASE
+#define PLAT_ARM_NVM_SIZE		(SZ_32M)  /* 32 MB */
 
-#define PLAT_ARM_FLASH_IMAGE_BASE				PLAT_ARM_FIP_BASE_BANK0
-#define PLAT_ARM_FLASH_IMAGE_MAX_SIZE				PLAT_ARM_FIP_MAX_SIZE
+#define PLAT_ARM_FLASH_IMAGE_BASE	PLAT_ARM_FIP_BASE_BANK0
+#define PLAT_ARM_FLASH_IMAGE_MAX_SIZE	PLAT_ARM_FIP_MAX_SIZE
 
 /*
  * Some data must be aligned on the biggest cache line size in the platform.
  * This is known only to the platform as it might have a combination of
  * integrated and external caches.
  */
-#define CACHE_WRITEBACK_GRANULE					(U(1) << ARM_CACHE_WRITEBACK_SHIFT)
-#define ARM_CACHE_WRITEBACK_SHIFT				6
+#define CACHE_WRITEBACK_GRANULE		(U(1) << ARM_CACHE_WRITEBACK_SHIFT)
+#define ARM_CACHE_WRITEBACK_SHIFT	6
 
 /*
  * Define FW_CONFIG area base and limit. Leave enough space for BL2 meminfo.
  * FW_CONFIG is intended to host the device tree. Currently, This area is not
  * used because corstone1000 platform doesn't use a device tree at TF-A level.
  */
-#define ARM_FW_CONFIG_BASE					(ARM_SHARED_RAM_BASE \
-								+ sizeof(meminfo_t))
-#define ARM_FW_CONFIG_LIMIT					(ARM_SHARED_RAM_BASE \
-								+ (ARM_SHARED_RAM_SIZE >> 1))
+#define ARM_FW_CONFIG_BASE	(ARM_SHARED_RAM_BASE + sizeof(meminfo_t))
+#define ARM_FW_CONFIG_LIMIT	(ARM_SHARED_RAM_BASE + \
+				 (ARM_SHARED_RAM_SIZE >> 1))
 
 /*
  * Boot parameters passed from BL2 to BL31/BL32 are stored here
  */
-#define ARM_BL2_MEM_DESC_BASE					ARM_FW_CONFIG_LIMIT
-#define ARM_BL2_MEM_DESC_LIMIT					ARM_BL_RAM_BASE
+#define ARM_BL2_MEM_DESC_BASE	ARM_FW_CONFIG_LIMIT
+#define ARM_BL2_MEM_DESC_LIMIT	ARM_BL_RAM_BASE
 
 /*
  * The max number of regions like RO(code), coherent and data required by
  * different BL stages which need to be mapped in the MMU.
  */
-#define ARM_BL_REGIONS						3
-#define PLAT_ARM_MMAP_ENTRIES					8
-#define MAX_XLAT_TABLES						5
-#define MAX_MMAP_REGIONS					(PLAT_ARM_MMAP_ENTRIES + \
-								ARM_BL_REGIONS)
-#define MAX_IO_DEVICES						2
-#define MAX_IO_HANDLES						3
-#define MAX_IO_BLOCK_DEVICES					1
+#define ARM_BL_REGIONS		3
+#define PLAT_ARM_MMAP_ENTRIES	8
+#define MAX_XLAT_TABLES		5
+#define MAX_MMAP_REGIONS	(PLAT_ARM_MMAP_ENTRIES + ARM_BL_REGIONS)
+#define MAX_IO_DEVICES		2
+#define MAX_IO_HANDLES		3
+#define MAX_IO_BLOCK_DEVICES	1
 
 /* GIC related constants */
-#define PLAT_ARM_GICD_BASE					0x1C010000
-#define PLAT_ARM_GICC_BASE					0x1C02F000
+#define PLAT_ARM_GICD_BASE	0x1C010000
+#define PLAT_ARM_GICC_BASE	0x1C02F000
 
 /* MHUv2 Secure Channel receiver and sender */
-#define PLAT_SDK700_MHU0_SEND					0x1B800000
-#define PLAT_SDK700_MHU0_RECV					0x1B810000
+#define PLAT_SDK700_MHU0_SEND	0x1B800000
+#define PLAT_SDK700_MHU0_RECV	0x1B810000
 
 /* Timer/watchdog related constants */
-#define ARM_SYS_CNTCTL_BASE					UL(0x1a200000)
-#define ARM_SYS_CNTREAD_BASE					UL(0x1a210000)
-#define ARM_SYS_TIMCTL_BASE					UL(0x1a220000)
+#define ARM_SYS_CNTCTL_BASE	UL(0x1a200000)
+#define ARM_SYS_CNTREAD_BASE	UL(0x1a210000)
+#define ARM_SYS_TIMCTL_BASE	UL(0x1a220000)
 
-#define SECURE_WATCHDOG_ADDR_CTRL_REG				0x1A320000
-#define SECURE_WATCHDOG_ADDR_VAL_REG      			0x1A320008
-#define SECURE_WATCHDOG_MASK_ENABLE       			0x01
-#define SECURE_WATCHDOG_COUNTDOWN_VAL     			0x1000
+#define SECURE_WATCHDOG_ADDR_CTRL_REG	0x1A320000
+#define SECURE_WATCHDOG_ADDR_VAL_REG	0x1A320008
+#define SECURE_WATCHDOG_MASK_ENABLE	0x01
+#define SECURE_WATCHDOG_COUNTDOWN_VAL	0x1000
 
-#define SYS_COUNTER_FREQ_IN_TICKS				UL(50000000) /* 50MHz */
+#define SYS_COUNTER_FREQ_IN_TICKS	UL(50000000)  /* 50MHz */
 
-#define CORSTONE1000_IRQ_TZ_WDOG				32
-#define CORSTONE1000_IRQ_SEC_SYS_TIMER				34
+#define CORSTONE1000_IRQ_TZ_WDOG	32
+#define CORSTONE1000_IRQ_SEC_SYS_TIMER	34
 
-#define PLAT_MAX_PWR_LVL					2
+#define PLAT_MAX_PWR_LVL	2
 /*
  * Macros mapping the MPIDR Affinity levels to ARM Platform Power levels. The
  * power levels have a 1:1 mapping with the MPIDR affinity levels.
  */
-#define ARM_PWR_LVL0						MPIDR_AFFLVL0
-#define ARM_PWR_LVL1						MPIDR_AFFLVL1
-#define ARM_PWR_LVL2						MPIDR_AFFLVL2
+#define ARM_PWR_LVL0	MPIDR_AFFLVL0
+#define ARM_PWR_LVL1	MPIDR_AFFLVL1
+#define ARM_PWR_LVL2	MPIDR_AFFLVL2
 
 /*
  *  Macros for local power states in ARM platforms encoded by State-ID field
  *  within the power-state parameter.
  */
 /* Local power state for power domains in Run state. */
-#define ARM_LOCAL_STATE_RUN					U(0)
+#define ARM_LOCAL_STATE_RUN	U(0)
 /* Local power state for retention. Valid only for CPU power domains */
-#define ARM_LOCAL_STATE_RET					U(1)
+#define ARM_LOCAL_STATE_RET	U(1)
 /* Local power state for OFF/power-down. Valid for CPU and cluster
  * power domains
  */
-#define ARM_LOCAL_STATE_OFF					U(2)
+#define ARM_LOCAL_STATE_OFF	U(2)
 
-#define PLAT_ARM_TRUSTED_MAILBOX_BASE				ARM_TRUSTED_SRAM_BASE
-#define PLAT_ARM_NSTIMER_FRAME_ID				U(1)
+#define PLAT_ARM_TRUSTED_MAILBOX_BASE	ARM_TRUSTED_SRAM_BASE
+#define PLAT_ARM_NSTIMER_FRAME_ID	U(1)
 
-#define PLAT_ARM_NS_IMAGE_BASE					(ARM_NS_SHARED_RAM_BASE)
+#define PLAT_ARM_NS_IMAGE_BASE		(ARM_NS_SHARED_RAM_BASE)
 
-#define PLAT_PHY_ADDR_SPACE_SIZE				(1ULL << 32)
-#define PLAT_VIRT_ADDR_SPACE_SIZE				(1ULL << 32)
+#define PLAT_PHY_ADDR_SPACE_SIZE	(1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE	(1ULL << 32)
 
 /*
  * This macro defines the deepest retention state possible. A higher state
  * ID will represent an invalid or a power down state.
  */
-#define PLAT_MAX_RET_STATE					1
+#define PLAT_MAX_RET_STATE	1
 
 /*
  * This macro defines the deepest power down states possible. Any state ID
  * higher than this is invalid.
  */
-#define PLAT_MAX_OFF_STATE					2
+#define PLAT_MAX_OFF_STATE	2
 
-#define PLATFORM_STACK_SIZE					UL(0x440)
+#define PLATFORM_STACK_SIZE	UL(0x440)
 
-#define CORSTONE1000_EXTERNAL_FLASH				MAP_REGION_FLAT(		\
-								PLAT_ARM_NVM_BASE,		\
-								PLAT_ARM_NVM_SIZE,		\
-								MT_DEVICE | MT_RO | MT_SECURE)
+#define CORSTONE1000_EXTERNAL_FLASH	MAP_REGION_FLAT( \
+					PLAT_ARM_NVM_BASE, \
+					PLAT_ARM_NVM_SIZE, \
+					MT_DEVICE | MT_RO | MT_SECURE)
 
-#define ARM_MAP_SHARED_RAM					MAP_REGION_FLAT(		\
-								ARM_SHARED_RAM_BASE,	\
-								ARM_SHARED_RAM_SIZE,	\
-								MT_MEMORY | MT_RW | MT_SECURE)
+#define ARM_MAP_SHARED_RAM	MAP_REGION_FLAT( \
+				ARM_SHARED_RAM_BASE, \
+				ARM_SHARED_RAM_SIZE, \
+				MT_MEMORY | MT_RW | MT_SECURE)
 
-#define ARM_MAP_NS_SHARED_RAM					MAP_REGION_FLAT(	\
-								ARM_NS_SHARED_RAM_BASE, \
-								ARM_NS_SHARED_RAM_SIZE, \
-								MT_MEMORY | MT_RW | MT_NS)
+#define ARM_MAP_NS_SHARED_RAM	MAP_REGION_FLAT( \
+				ARM_NS_SHARED_RAM_BASE, \
+				ARM_NS_SHARED_RAM_SIZE, \
+				MT_MEMORY | MT_RW | MT_NS)
 
-#define ARM_MAP_NS_DRAM1					MAP_REGION_FLAT(	\
-								ARM_NS_DRAM1_BASE,	\
-								ARM_NS_DRAM1_SIZE,	\
-								MT_MEMORY | MT_RW | MT_NS)
+#define ARM_MAP_NS_DRAM1	MAP_REGION_FLAT( \
+				ARM_NS_DRAM1_BASE, \
+				ARM_NS_DRAM1_SIZE, \
+				MT_MEMORY | MT_RW | MT_NS)
 
-#define ARM_MAP_BL_RO						MAP_REGION_FLAT(	\
-								BL_CODE_BASE,		\
-								BL_CODE_END		\
-								- BL_CODE_BASE, \
-								MT_CODE | MT_SECURE),	\
-								MAP_REGION_FLAT(	\
-								BL_RO_DATA_BASE,	\
-								BL_RO_DATA_END	\
-								- BL_RO_DATA_BASE,	\
-								MT_RO_DATA | MT_SECURE)
+#define ARM_MAP_BL_RO		MAP_REGION_FLAT( \
+				BL_CODE_BASE, \
+				(BL_CODE_END - BL_CODE_BASE), \
+				MT_CODE | MT_SECURE), \
+				MAP_REGION_FLAT( \
+				BL_RO_DATA_BASE, \
+				(BL_RO_DATA_END - BL_RO_DATA_BASE), \
+				MT_RO_DATA | MT_SECURE)
 #if USE_COHERENT_MEM
-#define ARM_MAP_BL_COHERENT_RAM					MAP_REGION_FLAT(	\
-								BL_COHERENT_RAM_BASE,	\
-								BL_COHERENT_RAM_END	\
-								- BL_COHERENT_RAM_BASE, \
-								MT_DEVICE | MT_RW | MT_SECURE)
+#define ARM_MAP_BL_COHERENT_RAM		MAP_REGION_FLAT( \
+					BL_COHERENT_RAM_BASE, \
+					(BL_COHERENT_RAM_END \
+					 - BL_COHERENT_RAM_BASE), \
+					MT_DEVICE | MT_RW | MT_SECURE)
 #endif
 
 /*
  * Map the region for the optional device tree configuration with read and
  * write permissions
  */
-#define ARM_MAP_BL_CONFIG_REGION				MAP_REGION_FLAT(	\
-								ARM_FW_CONFIG_BASE,	\
-								(ARM_FW_CONFIG_LIMIT-   \
-								ARM_FW_CONFIG_BASE),   \
-								MT_MEMORY | MT_RW | MT_SECURE)
+#define ARM_MAP_BL_CONFIG_REGION	MAP_REGION_FLAT( \
+					ARM_FW_CONFIG_BASE, \
+					(ARM_FW_CONFIG_LIMIT \
+					 - ARM_FW_CONFIG_BASE), \
+					MT_MEMORY | MT_RW | MT_SECURE)
 
-#define CORSTONE1000_DEVICE_BASE				(0x1A000000)
-#define CORSTONE1000_DEVICE_SIZE				(0x26000000)
-#define CORSTONE1000_MAP_DEVICE					MAP_REGION_FLAT(	\
-								CORSTONE1000_DEVICE_BASE,	\
-								CORSTONE1000_DEVICE_SIZE,	\
-								MT_DEVICE | MT_RW | MT_SECURE)
+#define CORSTONE1000_DEVICE_BASE	(0x1A000000)
+#define CORSTONE1000_DEVICE_SIZE	(0x26000000)
+#define CORSTONE1000_MAP_DEVICE		MAP_REGION_FLAT( \
+					CORSTONE1000_DEVICE_BASE, \
+					CORSTONE1000_DEVICE_SIZE, \
+					MT_DEVICE | MT_RW | MT_SECURE)
 
-#define ARM_IRQ_SEC_PHY_TIMER					29
+#define ARM_IRQ_SEC_PHY_TIMER	29
 
-#define ARM_IRQ_SEC_SGI_0					8
-#define ARM_IRQ_SEC_SGI_1					9
-#define ARM_IRQ_SEC_SGI_2					10
-#define ARM_IRQ_SEC_SGI_3					11
-#define ARM_IRQ_SEC_SGI_4					12
-#define ARM_IRQ_SEC_SGI_5					13
-#define ARM_IRQ_SEC_SGI_6					14
-#define ARM_IRQ_SEC_SGI_7					15
+#define ARM_IRQ_SEC_SGI_0	8
+#define ARM_IRQ_SEC_SGI_1	9
+#define ARM_IRQ_SEC_SGI_2	10
+#define ARM_IRQ_SEC_SGI_3	11
+#define ARM_IRQ_SEC_SGI_4	12
+#define ARM_IRQ_SEC_SGI_5	13
+#define ARM_IRQ_SEC_SGI_6	14
+#define ARM_IRQ_SEC_SGI_7	15
 
 /*
  * Define a list of Group 1 Secure and Group 0 interrupt properties as per GICv3
@@ -424,12 +380,14 @@
  * terminology. On a GICv2 system or mode, the lists will be merged and treated
  * as Group 0 interrupts.
  */
-#define PLAT_ARM_G1S_IRQ_PROPS(grp)	\
-	ARM_G1S_IRQ_PROPS(grp), \
-	INTR_PROP_DESC(CORSTONE1000_IRQ_TZ_WDOG, GIC_HIGHEST_SEC_PRIORITY, \
-		(grp), GIC_INTR_CFG_LEVEL), \
-	INTR_PROP_DESC(CORSTONE1000_IRQ_SEC_SYS_TIMER, \
-		GIC_HIGHEST_SEC_PRIORITY, (grp), GIC_INTR_CFG_LEVEL)
+#define PLAT_ARM_G1S_IRQ_PROPS(grp)				\
+		ARM_G1S_IRQ_PROPS(grp),				\
+		INTR_PROP_DESC(CORSTONE1000_IRQ_TZ_WDOG,	\
+			GIC_HIGHEST_SEC_PRIORITY,		\
+			(grp), GIC_INTR_CFG_LEVEL),		\
+		INTR_PROP_DESC(CORSTONE1000_IRQ_SEC_SYS_TIMER,	\
+			GIC_HIGHEST_SEC_PRIORITY,		\
+			(grp), GIC_INTR_CFG_LEVEL)
 
 #define PLAT_ARM_G0_IRQ_PROPS(grp)	ARM_G0_IRQ_PROPS(grp)
 
diff --git a/plat/arm/board/corstone700/common/corstone700_plat.c b/plat/arm/board/corstone700/common/corstone700_plat.c
index 629f076..dd7531d 100644
--- a/plat/arm/board/corstone700/common/corstone700_plat.c
+++ b/plat/arm/board/corstone700/common/corstone700_plat.c
@@ -1,12 +1,12 @@
 /*
- * Copyright (c) 2019-2020, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2022, Arm Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
 #include <common/bl_common.h>
 
-#include <mhu.h>
+#include <corstone700_mhu.h>
 #include <plat/arm/common/plat_arm.h>
 #include <plat/common/platform.h>
 #include <platform_def.h>
diff --git a/plat/arm/board/corstone700/common/drivers/mhu/mhu.c b/plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.c
similarity index 96%
rename from plat/arm/board/corstone700/common/drivers/mhu/mhu.c
rename to plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.c
index 2231d11..832cfb7 100644
--- a/plat/arm/board/corstone700/common/drivers/mhu/mhu.c
+++ b/plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ * Copyright (c) 2019-2022, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -12,7 +12,7 @@
 #include <lib/bakery_lock.h>
 #include <lib/mmio.h>
 
-#include "mhu.h"
+#include "corstone700_mhu.h"
 #include <plat_arm.h>
 #include <platform_def.h>
 
diff --git a/plat/arm/board/corstone700/common/drivers/mhu/mhu.h b/plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.h
similarity index 86%
rename from plat/arm/board/corstone700/common/drivers/mhu/mhu.h
rename to plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.h
index 3808746..7f14ca5 100644
--- a/plat/arm/board/corstone700/common/drivers/mhu/mhu.h
+++ b/plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.h
@@ -1,11 +1,11 @@
 /*
- * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ * Copyright (c) 2019-2022, Arm Limited. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#ifndef MHU_H
-#define MHU_H
+#ifndef CORSTONE700_MHU_H
+#define CORSTONE700_MHU_H
 
 #define MHU_POLL_INTR_STAT_TIMEOUT		50000 /*timeout value in us*/
 
@@ -34,4 +34,4 @@
 void mhu_secure_message_end(uintptr_t address, unsigned int slot_id);
 void mhu_secure_init(void);
 
-#endif /* MHU_H */
+#endif /* CORSTONE700_MHU_H */
diff --git a/plat/arm/board/corstone700/platform.mk b/plat/arm/board/corstone700/platform.mk
index 9a8d38c..75833f6 100644
--- a/plat/arm/board/corstone700/platform.mk
+++ b/plat/arm/board/corstone700/platform.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2019-2020, Arm Limited and Contributors. All rights reserved.
+# Copyright (c) 2019-2022, Arm Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -17,7 +17,7 @@
 				lib/xlat_tables/aarch32/xlat_tables.c	\
 				lib/xlat_tables/xlat_tables_common.c	\
 				${CORSTONE700_CPU_LIBS}	\
-				plat/arm/board/corstone700/common/drivers/mhu/mhu.c
+				plat/arm/board/corstone700/common/drivers/mhu/corstone700_mhu.c
 
 PLAT_INCLUDES		:=	-Iplat/arm/board/corstone700/common/include	\
 				-Iinclude/plat/arm/common	\
diff --git a/plat/arm/board/fvp/fvp_plat_attest_token.c b/plat/arm/board/fvp/fvp_plat_attest_token.c
new file mode 100644
index 0000000..5463f33
--- /dev/null
+++ b/plat/arm/board/fvp/fvp_plat_attest_token.c
@@ -0,0 +1,317 @@
+/*
+ * Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+
+/* Using hardcoded token values for AEM FVP */
+static uint8_t platform_token[] = {
+	0xD2, 0x84, 0x40, 0xA0, 0x59, 0x08, 0xB1, 0xD9,
+	0x61, 0xA8, 0xA9, 0x0A, 0x58, 0x40, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0x3A, 0x00,
+	0x01, 0x24, 0xFA, 0x58, 0x40, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
+	0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
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+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
+	0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
+	0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
+	0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
+	0xA4, 0x02, 0x58, 0x40, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
+	0xCC, 0xCC, 0xCC, 0xCC, 0x05, 0x58, 0x40, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD,
+	0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0xDD, 0x04,
+	0x65, 0x31, 0x2E, 0x30, 0x2E, 0x30, 0x06, 0x08,
+	0x58, 0x40, 0xD3, 0x8A, 0x41, 0xA6, 0xC1, 0x29,
+	0x98, 0x18, 0xB5, 0x16, 0x9C, 0x21, 0x78, 0xB7,
+	0x92, 0xF8, 0x26, 0x82, 0x76, 0x2F, 0x26, 0x45,
+	0x21, 0x6D, 0x0C, 0x21, 0x06, 0xF4, 0xB5, 0xE3,
+	0xA8, 0x07, 0xD1, 0xD6, 0x8C, 0x73, 0xA5, 0xC8,
+	0x16, 0xD8, 0x30, 0x68, 0xC0, 0xA4, 0x77, 0xE2,
+	0x1E, 0xD2, 0x17, 0x86, 0xC3, 0x68, 0x82, 0xDD,
+	0x21, 0x1B, 0xA3, 0xE2, 0xC7, 0xF7, 0x06, 0x33,
+	0xB0, 0x3A
+};
+
+int plat_get_cca_attest_token(uintptr_t buf, size_t *len,
+			       uintptr_t hash, size_t hash_size)
+{
+	(void)hash;
+	(void)hash_size;
+
+	if (*len < sizeof(platform_token)) {
+		return -EINVAL;
+	}
+
+	(void)memcpy((void *)buf, platform_token, sizeof(platform_token));
+	*len = sizeof(platform_token);
+
+	return 0;
+}
diff --git a/plat/arm/board/fvp/fvp_realm_attest_key.c b/plat/arm/board/fvp/fvp_realm_attest_key.c
new file mode 100644
index 0000000..b32f557
--- /dev/null
+++ b/plat/arm/board/fvp/fvp_realm_attest_key.c
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <services/rmmd_svc.h>
+
+static uint8_t sample_attest_priv_key[] = {
+	0x20, 0x11, 0xC7, 0xF0, 0x3C, 0xEE, 0x43, 0x25, 0x17, 0x6E,
+	0x52, 0x4F, 0x03, 0x3C, 0x0C, 0xE1, 0xE2, 0x1A, 0x76, 0xE6,
+	0xC1, 0xA4, 0xF0, 0xB8, 0x39, 0xAA, 0x1D, 0xF6, 0x1E, 0x0E,
+	0x8A, 0x5C, 0x8A, 0x05, 0x74, 0x0F, 0x9B, 0x69, 0xEF, 0xA7,
+	0xEB, 0x1A, 0x41, 0x85, 0xBD, 0x11, 0x7F, 0x68
+};
+
+int plat_get_cca_realm_attest_key(uintptr_t buf, size_t *len, unsigned int type)
+{
+	assert(type == ATTEST_KEY_CURVE_ECC_SECP384R1);
+
+	if (*len < sizeof(sample_attest_priv_key)) {
+		return -EINVAL;
+	}
+
+	(void)memcpy((void *)buf, sample_attest_priv_key,
+		     sizeof(sample_attest_priv_key));
+	*len = sizeof(sample_attest_priv_key);
+
+	return 0;
+}
diff --git a/plat/arm/board/fvp/include/platform_def.h b/plat/arm/board/fvp/include/platform_def.h
index 77df610..5e5ddce 100644
--- a/plat/arm/board/fvp/include/platform_def.h
+++ b/plat/arm/board/fvp/include/platform_def.h
@@ -103,7 +103,7 @@
 # if SPM_MM
 #  define PLAT_ARM_MMAP_ENTRIES		10
 #  if ENABLE_RME
-#   define MAX_XLAT_TABLES		10
+#   define MAX_XLAT_TABLES		11
 #  else
 #   define MAX_XLAT_TABLES		9
 # endif
@@ -113,13 +113,13 @@
 #  define PLAT_ARM_MMAP_ENTRIES		9
 #  if USE_DEBUGFS
 #   if ENABLE_RME
-#    define MAX_XLAT_TABLES		9
+#    define MAX_XLAT_TABLES		10
 #   else
 #    define MAX_XLAT_TABLES		8
 #   endif
 #  else
 #   if ENABLE_RME
-#    define MAX_XLAT_TABLES		8
+#    define MAX_XLAT_TABLES		9
 #   else
 #    define MAX_XLAT_TABLES		7
 #   endif
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index acac886..c9f5551 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -193,6 +193,8 @@
 
 ifeq (${ENABLE_RME},1)
 BL2_SOURCES		+=	plat/arm/board/fvp/aarch64/fvp_helpers.S
+BL31_SOURCES		+=	plat/arm/board/fvp/fvp_plat_attest_token.c	\
+				plat/arm/board/fvp/fvp_realm_attest_key.c
 endif
 
 ifeq (${BL2_AT_EL3},1)
@@ -344,6 +346,10 @@
     endif
 endif
 
+ifeq (${ENABLE_RME},1)
+    BL31_CPPFLAGS	+=	-DPLAT_XLAT_TABLES_DYNAMIC
+endif
+
 ifeq (${ALLOW_RO_XLAT_TABLES}, 1)
     ifeq (${ARCH},aarch32)
         BL32_CPPFLAGS	+=	-DPLAT_RO_XLAT_TABLES
diff --git a/plat/arm/board/juno/include/platform_def.h b/plat/arm/board/juno/include/platform_def.h
index d61ba5d..3265b0b 100644
--- a/plat/arm/board/juno/include/platform_def.h
+++ b/plat/arm/board/juno/include/platform_def.h
@@ -9,7 +9,7 @@
 
 #include <drivers/arm/tzc400.h>
 #if TRUSTED_BOARD_BOOT
-#include <drivers/auth/mbedtls/mbedtls_config.h>
+#include MBEDTLS_CONFIG_FILE
 #endif
 #include <plat/arm/board/common/board_css_def.h>
 #include <plat/arm/board/common/v2m_def.h>
diff --git a/plat/arm/common/aarch64/execution_state_switch.c b/plat/arm/common/aarch64/execution_state_switch.c
index bed929a..2353e6a 100644
--- a/plat/arm/common/aarch64/execution_state_switch.c
+++ b/plat/arm/common/aarch64/execution_state_switch.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2022, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -162,7 +162,7 @@
 	 * calling EL.
 	 */
 	cm_init_my_context(&ep);
-	cm_prepare_el3_exit(NON_SECURE);
+	cm_prepare_el3_exit_ns();
 
 	/*
 	 * State switch success. The caller of SMC wouldn't see the SMC
diff --git a/plat/arm/common/arm_dyn_cfg.c b/plat/arm/common/arm_dyn_cfg.c
index 7abd1cd..83e3f9a 100644
--- a/plat/arm/common/arm_dyn_cfg.c
+++ b/plat/arm/common/arm_dyn_cfg.c
@@ -14,7 +14,7 @@
 #include <common/desc_image_load.h>
 #include <common/tbbr/tbbr_img_def.h>
 #if CRYPTO_SUPPORT
-#include <drivers/auth/mbedtls/mbedtls_config.h>
+#include MBEDTLS_CONFIG_FILE
 #endif /* CRYPTO_SUPPORT */
 #include <lib/fconf/fconf.h>
 #include <lib/fconf/fconf_dyn_cfg_getter.h>
diff --git a/plat/nxp/common/img_loadr/load_img.c b/plat/nxp/common/img_loadr/load_img.c
index c185c36..51011e4 100644
--- a/plat/nxp/common/img_loadr/load_img.c
+++ b/plat/nxp/common/img_loadr/load_img.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2020 NXP
+ * Copyright 2018-2022 NXP
  *
  * SPDX-License-Identifier: BSD-3-Clause
  *
@@ -49,10 +49,14 @@
 	/* Create MMU entry for the CSF header */
 #if PLAT_XLAT_TABLES_DYNAMIC
 #ifdef CSF_HEADER_PREPENDED
-	mmap_add_dynamic_region(img_info.image_info.image_base,
+	err = mmap_add_dynamic_region(img_info.image_info.image_base,
 			img_info.image_info.image_base,
 			CSF_HDR_SZ,
 			MT_MEMORY | MT_RW | MT_SECURE);
+	if (err != 0) {
+		ERROR("Failed to add dynamic memory region.\n");
+		return err;
+	}
 #endif
 #endif
 
diff --git a/plat/nxp/common/setup/ls_common.c b/plat/nxp/common/setup/ls_common.c
index e7ae060..28d6b72 100644
--- a/plat/nxp/common/setup/ls_common.c
+++ b/plat/nxp/common/setup/ls_common.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 NXP
+ * Copyright 2018-2022 NXP
  *
  * SPDX-License-Identifier: BSD-3-Clause
  *
@@ -113,7 +113,8 @@
 #if defined(PLAT_XLAT_TABLES_DYNAMIC)
 void mmap_add_ddr_region_dynamically(void)
 {
-	int i = 0;
+	int ret, i = 0;
+
 	dram_regions_info_t *info_dram_regions = get_dram_regions_info();
 	/* MMU map for Non-Secure DRAM Regions */
 	VERBOSE("DRAM Region %d: %p - %p\n", i,
@@ -121,10 +122,14 @@
 			(void *) (info_dram_regions->region[i].addr
 				+ info_dram_regions->region[i].size
 				- 1));
-	mmap_add_dynamic_region(info_dram_regions->region[i].addr,
+	ret = mmap_add_dynamic_region(info_dram_regions->region[i].addr,
 			info_dram_regions->region[i].addr,
 			info_dram_regions->region[i].size,
 			MT_MEMORY | MT_RW | MT_NS);
+	if (ret != 0) {
+		ERROR("Failed to add dynamic memory region\n");
+		panic();
+	}
 
 	/* MMU map for Secure DDR Region on DRAM-0 */
 	if (info_dram_regions->region[i].size >
@@ -137,12 +142,16 @@
 				+ NXP_SECURE_DRAM_SIZE
 				+ NXP_SP_SHRD_DRAM_SIZE
 				- 1));
-		mmap_add_dynamic_region((info_dram_regions->region[i].addr
+		ret = mmap_add_dynamic_region((info_dram_regions->region[i].addr
 				+ info_dram_regions->region[i].size),
 				(info_dram_regions->region[i].addr
 				+ info_dram_regions->region[i].size),
 				(NXP_SECURE_DRAM_SIZE + NXP_SP_SHRD_DRAM_SIZE),
 				MT_MEMORY | MT_RW | MT_SECURE);
+		if (ret != 0) {
+			ERROR("Failed to add dynamic memory region\n");
+			panic();
+		}
 	}
 
 #ifdef IMAGE_BL31
@@ -155,10 +164,14 @@
 			(void *) (info_dram_regions->region[i].addr
 				+ info_dram_regions->region[i].size
 				- 1));
-		mmap_add_dynamic_region(info_dram_regions->region[i].addr,
+		ret = mmap_add_dynamic_region(info_dram_regions->region[i].addr,
 				info_dram_regions->region[i].addr,
 				info_dram_regions->region[i].size,
 				MT_MEMORY | MT_RW | MT_NS);
+		if (ret != 0) {
+			ERROR("Failed to add dynamic memory region\n");
+			panic();
+		}
 	}
 #endif
 }
diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index 9e732d6..a890534 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -146,7 +146,7 @@
 endif
 
 $(eval DTC_V = $(shell $(DTC) -v | awk '{print $$NF}'))
-$(eval DTC_VERSION = $(shell printf "%d" $(shell echo ${DTC_V} | cut -d- -f1 | sed "s/\./0/g")))
+$(eval DTC_VERSION = $(shell printf "%d" $(shell echo ${DTC_V} | cut -d- -f1 | sed "s/\./0/g" | grep -o [0-9]*)))
 DTC_CPPFLAGS		+=	${INCLUDES}
 DTC_FLAGS		+=	-Wno-unit_address_vs_reg
 ifeq ($(shell test $(DTC_VERSION) -ge 10601; echo $$?),0)
diff --git a/services/std_svc/rmmd/rmmd.mk b/services/std_svc/rmmd/rmmd.mk
index bac0a9f..bcf54e1 100644
--- a/services/std_svc/rmmd/rmmd.mk
+++ b/services/std_svc/rmmd/rmmd.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2021, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2021-2022, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -12,7 +12,8 @@
 
 RMMD_SOURCES	+=	$(addprefix services/std_svc/rmmd/,	\
 			${ARCH}/rmmd_helpers.S			\
-			rmmd_main.c)
+			rmmd_main.c				\
+			rmmd_attest.c)
 
 # Let the top-level Makefile know that we intend to include RMM image
 NEED_RMM	:=	yes
diff --git a/services/std_svc/rmmd/rmmd_attest.c b/services/std_svc/rmmd/rmmd_attest.c
new file mode 100644
index 0000000..0432ec3
--- /dev/null
+++ b/services/std_svc/rmmd/rmmd_attest.c
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <stdint.h>
+#include <string.h>
+#include <common/debug.h>
+#include <lib/spinlock.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+#include <plat/common/platform.h>
+#include "rmmd_private.h"
+#include <services/rmmd_svc.h>
+
+static spinlock_t lock;
+
+/* For printing Realm attestation token hash */
+#define DIGITS_PER_BYTE				2UL
+#define LENGTH_OF_TERMINATING_ZERO_IN_BYTES	1UL
+#define BYTES_PER_LINE_BASE			4UL
+
+static void print_challenge(uint8_t *hash, size_t hash_size)
+{
+	size_t leftover;
+	/*
+	 * bytes_per_line is always a power of two, so it can be used to
+	 * construct mask with it when it is necessary to count remainder.
+	 *
+	 */
+	const size_t bytes_per_line = 1 << BYTES_PER_LINE_BASE;
+	char hash_text[(1 << BYTES_PER_LINE_BASE) * DIGITS_PER_BYTE +
+		LENGTH_OF_TERMINATING_ZERO_IN_BYTES];
+	const char hex_chars[] = {'0', '1', '2', '3', '4', '5', '6', '7',
+				  '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+	unsigned int i;
+
+	for (i = 0U; i < hash_size; ++i) {
+		hash_text[(i & (bytes_per_line - 1)) * DIGITS_PER_BYTE] =
+			hex_chars[hash[i] >> 4];
+		hash_text[(i & (bytes_per_line - 1)) * DIGITS_PER_BYTE + 1] =
+			hex_chars[hash[i] & 0x0f];
+		if (((i + 1) & (bytes_per_line - 1)) == 0U) {
+			hash_text[bytes_per_line * DIGITS_PER_BYTE] = '\0';
+			VERBOSE("hash part %u = %s\n",
+				(i >> BYTES_PER_LINE_BASE) + 1, hash_text);
+		}
+	}
+
+	leftover = (size_t)i & (bytes_per_line - 1);
+
+	if (leftover != 0UL) {
+		hash_text[leftover * DIGITS_PER_BYTE] = '\0';
+		VERBOSE("hash part %u = %s\n", (i >> BYTES_PER_LINE_BASE) + 1,
+			hash_text);
+	}
+}
+
+/*
+ * TODO: Have different error codes for different errors so that the caller can
+ * differentiate various error cases.
+ */
+int rmmd_attest_get_platform_token(uint64_t buf_pa, uint64_t *buf_len, uint64_t challenge_hash_len)
+{
+	int err;
+	uintptr_t va;
+	uint8_t temp_buf[SHA512_DIGEST_SIZE];
+
+	/*
+	 * TODO: Currently we don't validate incoming buf_pa. This is a
+	 * prototype and we will need to allocate static buffer for EL3-RMM
+	 * communication.
+	 */
+
+	/* We need a page of buffer to pass data */
+	if (*buf_len != PAGE_SIZE) {
+		ERROR("Invalid buffer length\n");
+		return RMMD_ERR_INVAL;
+	}
+
+	if ((challenge_hash_len != SHA256_DIGEST_SIZE) &&
+	    (challenge_hash_len != SHA384_DIGEST_SIZE) &&
+	    (challenge_hash_len != SHA512_DIGEST_SIZE)) {
+		ERROR("Invalid hash size: %lu\n", challenge_hash_len);
+		return RMMD_ERR_INVAL;
+	}
+
+	spin_lock(&lock);
+
+	/* Map the buffer that was provided by the RMM. */
+	err = mmap_add_dynamic_region_alloc_va(buf_pa, &va, PAGE_SIZE,
+					       MT_RW_DATA | MT_REALM);
+	if (err != 0) {
+		ERROR("mmap_add_dynamic_region_alloc_va failed: %d (%p).\n"
+		      , err, (void *)buf_pa);
+		spin_unlock(&lock);
+		return RMMD_ERR_NOMEM;
+	}
+
+	(void)memcpy(temp_buf, (void *)va, challenge_hash_len);
+
+	print_challenge((uint8_t *)temp_buf, challenge_hash_len);
+
+	/* Get the platform token. */
+	err = plat_get_cca_attest_token(va,
+		buf_len, (uintptr_t)temp_buf, challenge_hash_len);
+
+	if (err != 0) {
+		ERROR("Failed to get platform token: %d.\n", err);
+		err = RMMD_ERR_UNK;
+	}
+
+	/* Unmap RMM memory. */
+	(void)mmap_remove_dynamic_region(va, PAGE_SIZE);
+	spin_unlock(&lock);
+
+	return err;
+}
+
+int rmmd_attest_get_signing_key(uint64_t buf_pa, uint64_t *buf_len,
+				uint64_t ecc_curve)
+{
+	int err;
+	uintptr_t va;
+
+	/*
+	 * TODO: Currently we don't validate incoming buf_pa. This is a
+	 * prototype and we will need to allocate static buffer for EL3-RMM
+	 * communication.
+	 */
+
+	/* We need a page of buffer to pass data */
+	if (*buf_len != PAGE_SIZE) {
+		ERROR("Invalid buffer length\n");
+		return RMMD_ERR_INVAL;
+	}
+
+	if (ecc_curve != ATTEST_KEY_CURVE_ECC_SECP384R1) {
+		ERROR("Invalid ECC curve specified\n");
+		return RMMD_ERR_INVAL;
+	}
+
+	spin_lock(&lock);
+
+	/* Map the buffer that was provided by the RMM. */
+	err = mmap_add_dynamic_region_alloc_va(buf_pa, &va, PAGE_SIZE,
+					       MT_RW_DATA | MT_REALM);
+	if (err != 0) {
+		ERROR("mmap_add_dynamic_region_alloc_va failed: %d (%p).\n"
+		      , err, (void *)buf_pa);
+		spin_unlock(&lock);
+		return RMMD_ERR_NOMEM;
+	}
+
+	/* Get the Realm attestation key. */
+	err = plat_get_cca_realm_attest_key(va, buf_len, (unsigned int)ecc_curve);
+	if (err != 0) {
+		ERROR("Failed to get attestation key: %d.\n", err);
+		err =  RMMD_ERR_UNK;
+	}
+
+	/* Unmap RMM memory. */
+	(void)mmap_remove_dynamic_region(va, PAGE_SIZE);
+	spin_unlock(&lock);
+
+	return err;
+}
diff --git a/services/std_svc/rmmd/rmmd_main.c b/services/std_svc/rmmd/rmmd_main.c
index 7f4a010..746419e 100644
--- a/services/std_svc/rmmd/rmmd_main.c
+++ b/services/std_svc/rmmd/rmmd_main.c
@@ -60,10 +60,6 @@
 
 	cm_set_context(&(rmm_ctx->cpu_ctx), REALM);
 
-	/* Save the current el1/el2 context before loading realm context. */
-	cm_el1_sysregs_context_save(NON_SECURE);
-	cm_el2_sysregs_context_save(NON_SECURE);
-
 	/* Restore the realm context assigned above */
 	cm_el1_sysregs_context_restore(REALM);
 	cm_el2_sysregs_context_restore(REALM);
@@ -72,14 +68,15 @@
 	/* Enter RMM */
 	rc = rmmd_rmm_enter(&rmm_ctx->c_rt_ctx);
 
-	/* Save realm context */
+	/*
+	 * Save realm context. EL1 and EL2 Non-secure
+	 * contexts will be restored before exiting to
+	 * Non-secure world, therefore there is no need
+	 * to clear EL1 and EL2 context registers.
+	 */
 	cm_el1_sysregs_context_save(REALM);
 	cm_el2_sysregs_context_save(REALM);
 
-	/* Restore the el1/el2 context again. */
-	cm_el1_sysregs_context_restore(NON_SECURE);
-	cm_el2_sysregs_context_restore(NON_SECURE);
-
 	return rc;
 }
 
@@ -372,6 +369,12 @@
 	case RMMD_GTSI_UNDELEGATE:
 		ret = gpt_undelegate_pas(x1, PAGE_SIZE_4KB, SMC_FROM_REALM);
 		SMC_RET1(handle, gpt_to_gts_error(ret, smc_fid, x1));
+	case RMMD_ATTEST_GET_PLAT_TOKEN:
+		ret = rmmd_attest_get_platform_token(x1, &x2, x3);
+		SMC_RET2(handle, ret, x2);
+	case RMMD_ATTEST_GET_REALM_KEY:
+		ret = rmmd_attest_get_signing_key(x1, &x2, x3);
+		SMC_RET2(handle, ret, x2);
 	default:
 		WARN("RMMD: Unsupported RMM-EL3 call 0x%08x\n", smc_fid);
 		SMC_RET1(handle, SMC_UNK);
diff --git a/services/std_svc/rmmd/rmmd_private.h b/services/std_svc/rmmd/rmmd_private.h
index ca2c37c..73df2b8 100644
--- a/services/std_svc/rmmd/rmmd_private.h
+++ b/services/std_svc/rmmd/rmmd_private.h
@@ -51,6 +51,12 @@
 uint64_t rmmd_rmm_sync_entry(rmmd_rmm_context_t *ctx);
 __dead2 void rmmd_rmm_sync_exit(uint64_t rc);
 
+/* Functions implementing attestation utilities for RMM */
+int rmmd_attest_get_platform_token(uint64_t buf_pa, uint64_t *buf_len,
+				   uint64_t challenge_hash_len);
+int rmmd_attest_get_signing_key(uint64_t buf_pa, uint64_t *buf_len,
+				   uint64_t ecc_curve);
+
 /* Assembly helpers */
 uint64_t rmmd_rmm_enter(uint64_t *c_rt_ctx);
 void __dead2 rmmd_rmm_exit(uint64_t c_rt_ctx, uint64_t ret);
diff --git a/tools/memory/print_memory_map.py b/tools/memory/print_memory_map.py
index 8a84018..ef53f7e 100755
--- a/tools/memory/print_memory_map.py
+++ b/tools/memory/print_memory_map.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (c) 2019-2020, Arm Limited. All rights reserved.
+# Copyright (c) 2019-2022, Arm Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -17,12 +17,24 @@
 blx_symbols = ['__BL1_RAM_START__', '__BL1_RAM_END__',
                 '__BL2_END__',
                 '__BL31_END__',
+                '__RO_START__', '__RO_END_UNALIGNED__', '__RO_END__',
                 '__TEXT_START__', '__TEXT_END__',
+                '__TEXT_RESIDENT_START__', '__TEXT_RESIDENT_END__',
                 '__RODATA_START__', '__RODATA_END__',
                 '__DATA_START__', '__DATA_END__',
                 '__STACKS_START__', '__STACKS_END__',
-                '__BSS_END',
+                '__BSS_START__', '__BSS_END__',
                 '__COHERENT_RAM_START__', '__COHERENT_RAM_END__',
+                '__CPU_OPS_START__', '__CPU_OPS_END__',
+                '__FCONF_POPULATOR_START__', '__FCONF_POPULATOR_END__',
+                '__GOT_START__', '__GOT_END__',
+                '__PARSER_LIB_DESCS_START__', '__PARSER_LIB_DESCS_END__',
+                '__PMF_TIMESTAMP_START__', '__PMF_TIMESTAMP_END__',
+                '__PMF_SVC_DESCS_START__', '__PMF_SVC_DESCS_END__',
+                '__RELA_START__', '__RELA_END__',
+                '__RT_SVC_DESCS_START__', '__RT_SVC_DESCS_END__',
+                '__BASE_XLAT_TABLE_START__', '__BASE_XLAT_TABLE_END__',
+                '__XLAT_TABLE_START__', '__XLAT_TABLE_END__',
                ]
 
 # Regex to extract address from map file
@@ -40,6 +52,10 @@
 else:
     build_dir = 'build/fvp/debug'
 
+max_len = max(len(word) for word in blx_symbols) + 2
+if (max_len % 2) != 0:
+    max_len += 1
+
 # Extract all the required symbols from the map files
 for image in bl_images:
     file_path = os.path.join(build_dir, image, '{}.map'.format(image))
@@ -47,6 +63,7 @@
         with open (file_path, 'rt') as mapfile:
             for line in mapfile:
                 for symbol in blx_symbols:
+                    skip_symbol = 0
                     # Regex to find symbol definition
                     line_pattern = re.compile(r"\b0x\w*\s*" + symbol + "\s= .")
                     match = line_pattern.search(line)
@@ -54,7 +71,13 @@
                         # Extract address from line
                         match = address_pattern.search(line)
                         if match:
-                            address_list.append([match.group(0), symbol, image])
+                            if '_END__' in symbol:
+                                sym_start = symbol.replace('_END__', '_START__')
+                                if [match.group(0), sym_start, image] in address_list:
+                                    address_list.remove([match.group(0), sym_start, image])
+                                    skip_symbol = 1
+                            if skip_symbol == 0:
+                                address_list.append([match.group(0), symbol, image])
 
 # Sort by address
 address_list.sort(key=operator.itemgetter(0))
@@ -64,16 +87,16 @@
     address_list = reversed(address_list)
 
 # Generate memory view
-print('{:-^93}'.format('Memory Map from: ' + build_dir))
+print(('{:-^%d}' % (max_len * 3 + 20 + 7)).format('Memory Map from: ' + build_dir))
 for address in address_list:
     if "bl1" in address[2]:
-        print(address[0], '+{:-^22}+ |{:^22}| |{:^22}|'.format(address[1], '', ''))
+        print(address[0], ('+{:-^%d}+ |{:^%d}| |{:^%d}|' % (max_len, max_len, max_len)).format(address[1], '', ''))
     elif "bl2" in address[2]:
-        print(address[0], '|{:^22}| +{:-^22}+ |{:^22}|'.format('', address[1], ''))
+        print(address[0], ('|{:^%d}| +{:-^%d}+ |{:^%d}|' % (max_len, max_len, max_len)).format('', address[1], ''))
     elif "bl31" in address[2]:
-        print(address[0], '|{:^22}| |{:^22}| +{:-^22}+'.format('', '', address[1]))
+        print(address[0], ('|{:^%d}| |{:^%d}| +{:-^%d}+' % (max_len, max_len, max_len)).format('', '', address[1]))
     else:
-        print(address[0], '|{:^22}| |{:^22}| +{:-^22}+'.format('', '', address[1]))
+        print(address[0], ('|{:^%d}| |{:^%d}| +{:-^%d}+' % (max_len, max_len, max_len)).format('', '', address[1]))
 
-print('{:^20}{:_^22}   {:_^22}   {:_^22}'.format('', '', '', ''))
-print('{:^20}{:^22}   {:^22}   {:^22}'.format('address', 'bl1', 'bl2', 'bl31'))
+print(('{:^20}{:_^%d}   {:_^%d}   {:_^%d}' % (max_len, max_len, max_len)).format('', '', '', ''))
+print(('{:^20}{:^%d}   {:^%d}   {:^%d}' % (max_len, max_len, max_len)).format('address', 'bl1', 'bl2', 'bl31'))