diff --git a/hypervisor/arch/x86/guest/vm.c b/hypervisor/arch/x86/guest/vm.c
index bda4b9761..338760660 100644
--- a/hypervisor/arch/x86/guest/vm.c
+++ b/hypervisor/arch/x86/guest/vm.c
@@ -551,6 +551,24 @@ static uint64_t lapic_pt_enabled_pcpu_bitmap(struct acrn_vm *vm)
 	return bitmap;
 }
 
+void prepare_vm_identical_memmap(struct acrn_vm *vm, uint16_t e820_entry_type, uint64_t prot_orig)
+{
+	const struct e820_entry *entry;
+	const struct e820_entry *p_e820 = vm->e820_entries;
+	uint32_t entries_count = vm->e820_entry_num;
+	uint64_t *pml4_page = (uint64_t *)vm->arch_vm.nworld_eptp;
+	uint32_t i;
+
+	for (i = 0U; i < entries_count; i++) {
+		entry = p_e820 + i;
+		if (entry->type == e820_entry_type) {
+			ept_add_mr(vm, pml4_page, entry->baseaddr,
+				entry->baseaddr, entry->length,
+				prot_orig);
+		}
+	}
+}
+
 /**
  * @pre vm_id < CONFIG_MAX_VM_NUM && vm_config != NULL && rtn_vm != NULL
  * @pre vm->state == VM_POWERED_OFF
diff --git a/hypervisor/include/arch/x86/asm/guest/vm.h b/hypervisor/include/arch/x86/asm/guest/vm.h
index c3d9d8d2d..a4d510893 100644
--- a/hypervisor/include/arch/x86/asm/guest/vm.h
+++ b/hypervisor/include/arch/x86/asm/guest/vm.h
@@ -247,6 +247,7 @@ struct acrn_vm *get_service_vm(void);
 
 void create_service_vm_e820(struct acrn_vm *vm);
 void create_prelaunched_vm_e820(struct acrn_vm *vm);
+void prepare_vm_identical_memmap(struct acrn_vm *vm, uint16_t e820_entry_type, uint64_t prot_orig);
 uint64_t find_space_from_ve820(struct acrn_vm *vm, uint32_t size, uint64_t min_addr, uint64_t max_addr);
 
 int32_t prepare_os_image(struct acrn_vm *vm);