diff --git a/DynamicTablesPkg/DynamicTablesPkg.ci.yaml b/DynamicTablesPkg/DynamicTablesPkg.ci.yaml
index bfa282926e..5addf86268 100644
--- a/DynamicTablesPkg/DynamicTablesPkg.ci.yaml
+++ b/DynamicTablesPkg/DynamicTablesPkg.ci.yaml
@@ -108,6 +108,7 @@
            "lgreater",
            "lless",
            "MPIDR",
+           "PASID",
            "PERIPHBASE",
            "phandle",
            "pytool",
diff --git a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
index 91bef9bccd..102e0f96be 100644
--- a/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
+++ b/DynamicTablesPkg/Include/ArmNameSpaceObjects.h
@@ -1,6 +1,6 @@
 /** @file
 
-  Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>
+  Copyright (c) 2017 - 2022, Arm Limited. All rights reserved.<BR>
 
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -61,6 +61,8 @@ typedef enum ArmObjectID {
   EArmObjLpiInfo,                      ///< 37 - Lpi Info
   EArmObjPciAddressMapInfo,            ///< 38 - Pci Address Map Info
   EArmObjPciInterruptMapInfo,          ///< 39 - Pci Interrupt Map Info
+  EArmObjRmr,                          ///< 40 - Reserved Memory Range Node
+  EArmObjMemoryRangeDescriptor,        ///< 41 - Memory Range Descriptor
   EArmObjMax
 } EARM_OBJECT_ID;
 
@@ -477,6 +479,9 @@ typedef struct CmArmItsGroupNode {
   UINT32             ItsIdCount;
   /// Reference token for the ITS identifier array
   CM_OBJECT_TOKEN    ItsIdToken;
+
+  /// Unique identifier for this node.
+  UINT32             Identifier;
 } CM_ARM_ITS_GROUP_NODE;
 
 /** A structure that describes the
@@ -509,6 +514,9 @@ typedef struct CmArmNamedComponentNode {
       the entry in the namespace for this object.
   */
   CHAR8              *ObjectName;
+
+  /// Unique identifier for this node.
+  UINT32             Identifier;
 } CM_ARM_NAMED_COMPONENT_NODE;
 
 /** A structure that describes the
@@ -537,6 +545,13 @@ typedef struct CmArmRootComplexNode {
   UINT32             PciSegmentNumber;
   /// Memory address size limit
   UINT8              MemoryAddressSize;
+  /// PASID capabilities
+  UINT16             PasidCapabilities;
+  /// Flags
+  UINT32             Flags;
+
+  /// Unique identifier for this node.
+  UINT32             Identifier;
 } CM_ARM_ROOT_COMPLEX_NODE;
 
 /** A structure that describes the
@@ -579,6 +594,9 @@ typedef struct CmArmSmmuV1SmmuV2Node {
   UINT32             SMMU_NSgCfgIrpt;
   /// SMMU_NSgCfgIrpt interrupt flags
   UINT32             SMMU_NSgCfgIrptFlags;
+
+  /// Unique identifier for this node.
+  UINT32             Identifier;
 } CM_ARM_SMMUV1_SMMUV2_NODE;
 
 /** A structure that describes the
@@ -615,6 +633,9 @@ typedef struct CmArmSmmuV3Node {
   UINT32             ProximityDomain;
   /// Index into the array of ID mapping
   UINT32             DeviceIdMappingIndex;
+
+  /// Unique identifier for this node.
+  UINT32             Identifier;
 } CM_ARM_SMMUV3_NODE;
 
 /** A structure that describes the
@@ -639,6 +660,9 @@ typedef struct CmArmPmcgNode {
 
   /// Reference token for the IORT node associated with this node
   CM_OBJECT_TOKEN    ReferenceToken;
+
+  /// Unique identifier for this node.
+  UINT32             Identifier;
 } CM_ARM_PMCG_NODE;
 
 /** A structure that describes the
@@ -1006,6 +1030,46 @@ typedef struct CmArmPciInterruptMapInfo {
   CM_ARM_GENERIC_INTERRUPT    IntcInterrupt;
 } CM_ARM_PCI_INTERRUPT_MAP_INFO;
 
+/** A structure that describes the
+    RMR node for the Platform.
+
+    ID: EArmObjRmr
+*/
+typedef struct CmArmRmrNode {
+  /// An unique token used to identify this object
+  CM_OBJECT_TOKEN    Token;
+  /// Number of ID mappings
+  UINT32             IdMappingCount;
+  /// Reference token for the ID mapping array
+  CM_OBJECT_TOKEN    IdMappingToken;
+
+  /// Unique identifier for this node.
+  UINT32             Identifier;
+
+  /// Reserved Memory Range flags.
+  UINT32             Flags;
+
+  /// Memory range descriptor count.
+  UINT32             MemRangeDescCount;
+  /// Reference token for the Memory Range descriptor array
+  CM_OBJECT_TOKEN    MemRangeDescToken;
+} CM_ARM_RMR_NODE;
+
+/** A structure that describes the
+    Memory Range descriptor.
+
+    ID: EArmObjMemoryRangeDescriptor
+*/
+typedef struct CmArmRmrDescriptor {
+  /// Base address of Reserved Memory Range,
+  /// aligned to a page size of 64K.
+  UINT64    BaseAddress;
+
+  /// Length of the Reserved Memory range.
+  /// Must be a multiple of the page size of 64K.
+  UINT64    Length;
+} CM_ARM_MEMORY_RANGE_DESCRIPTOR;
+
 #pragma pack()
 
 #endif // ARM_NAMESPACE_OBJECTS_H_