diff --git a/misc/acrn-config/scenario_config/scenario_item.py b/misc/acrn-config/scenario_config/scenario_item.py
index 7b16da185..c212b4737 100644
--- a/misc/acrn-config/scenario_config/scenario_item.py
+++ b/misc/acrn-config/scenario_config/scenario_item.py
@@ -150,6 +150,8 @@ class MemInfo:
     mem_size = {}
     mem_start_hpa2 = {}
     mem_size_hpa2 = {}
+    mem_start_hpa3 = {}
+    mem_size_hpa3 = {}
 
     def __init__(self, scenario_file):
         self.scenario_info = scenario_file
@@ -167,6 +169,10 @@ class MemInfo:
             self.scenario_info, "memory", "start_hpa2")
         self.mem_size_hpa2 = common.get_leaf_tag_map(
             self.scenario_info, "memory", "size_hpa2")
+        self.mem_start_hpa3 = common.get_leaf_tag_map(
+            self.scenario_info, "memory", "start_hpa3")
+        self.mem_size_hpa3 = common.get_leaf_tag_map(
+            self.scenario_info, "memory", "size_hpa3")
 
     def check_item(self):
         """
@@ -177,6 +183,8 @@ class MemInfo:
         scenario_cfg_lib.mem_size_check(self.mem_size, "memory", "size")
         scenario_cfg_lib.mem_start_hpa_check(self.mem_start_hpa2, "memory", "start_hpa2")
         scenario_cfg_lib.mem_size_check(self.mem_size_hpa2, "memory", "size_hpa2")
+        scenario_cfg_lib.mem_start_hpa_check(self.mem_start_hpa3, "memory", "start_hpa3")
+        scenario_cfg_lib.mem_size_check(self.mem_size_hpa3, "memory", "size_hpa3")
 
 
 class CfgPci:
diff --git a/misc/acrn-config/scenario_config/vm_configurations_c.py b/misc/acrn-config/scenario_config/vm_configurations_c.py
index 6810325cc..a0e5f0ec6 100644
--- a/misc/acrn-config/scenario_config/vm_configurations_c.py
+++ b/misc/acrn-config/scenario_config/vm_configurations_c.py
@@ -304,6 +304,8 @@ def gen_pre_launch_vm(vm_type, vm_i, scenario_items, config):
     print("\t\t\t.size = VM{0}_CONFIG_MEM_SIZE,".format(vm_i), file=config)
     print("\t\t\t.start_hpa2 = VM{0}_CONFIG_MEM_START_HPA2,".format(vm_i), file=config)
     print("\t\t\t.size_hpa2 = VM{0}_CONFIG_MEM_SIZE_HPA2,".format(vm_i), file=config)
+    print("\t\t\t.start_hpa3 = VM{0}_CONFIG_MEM_START_HPA3,".format(vm_i), file=config)
+    print("\t\t\t.size_hpa3 = VM{0}_CONFIG_MEM_SIZE_HPA3,".format(vm_i), file=config)
     print("\t\t},", file=config)
     is_need_epc(vm_info.epc_section, vm_i, config)
     print("\t\t.os_config = {", file=config)
diff --git a/misc/acrn-config/scenario_config/vm_configurations_h.py b/misc/acrn-config/scenario_config/vm_configurations_h.py
index f7ccf6826..3bb8764de 100644
--- a/misc/acrn-config/scenario_config/vm_configurations_h.py
+++ b/misc/acrn-config/scenario_config/vm_configurations_h.py
@@ -57,6 +57,13 @@ def gen_pre_launch_vm(scenario_items, config):
             print("#define VM{0}_CONFIG_MEM_SIZE_HPA2        {1}UL".format(
                 vm_i, vm_info.mem_info.mem_size_hpa2[vm_i]), file=config)
 
+        start_hpa3 = vm_info.mem_info.mem_start_hpa3.get(vm_i, '0')
+        size_hpa3 = vm_info.mem_info.mem_size_hpa3.get(vm_i, '0')
+        print("#define VM{0}_CONFIG_MEM_START_HPA3       {1}UL".format(
+            vm_i, start_hpa3), file=config)
+        print("#define VM{0}_CONFIG_MEM_SIZE_HPA3        {1}UL".format(
+            vm_i, size_hpa3), file=config)
+
         print("", file=config)
         vm_i += 1