diff --git a/misc/acrn-config/xmls/config-xmls/template/KATA_VM.xml b/misc/acrn-config/xmls/config-xmls/template/KATA_VM.xml
index 20bb26cc1..4a951eddd 100644
--- a/misc/acrn-config/xmls/config-xmls/template/KATA_VM.xml
+++ b/misc/acrn-config/xmls/config-xmls/template/KATA_VM.xml
@@ -8,20 +8,20 @@
         <pcpu_id></pcpu_id>
     </vcpu_affinity>
     <epc_section configurable="0" desc="epc section">
-        <base desc="SGX EPC section base, must be page aligned"></base>
-        <size desc="SGX EPC section size in Bytes, must be page aligned"></size>
+        <base desc="SGX EPC section base, must be page aligned">0</base>
+        <size desc="SGX EPC section size in Bytes, must be page aligned">0</size>
     </epc_section>
     <vuart id="0">
         <type configurable="0" desc="vCOM1 type">VUART_LEGACY_PIO</type>
         <base configurable="0" desc="vUART0 (A.K.A COM1) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
-        <irq configurable="0" desc="vCOM1 irq">COM1_BASE</irq>
+        <irq configurable="0" desc="vCOM1 irq">COM1_IRQ</irq>
     </vuart>
     <vuart id="1">
         <type configurable="0" desc="vCOM2 type">VUART_LEGACY_PIO</type>
-        <base configurable="0" desc="vUART1 (A.K.A COM2) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
-        <irq configurable="0" desc="vCOM2 irq">COM2_BASE</irq>
-        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to."></target_vm_id>
-        <target_uart_id configurable="0" desc="target vUART ID that vCOM2 connect to">0</target_uart_id>
+        <base desc="vUART1 (A.K.A COM2) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
+        <irq configurable="0" desc="vCOM2 irq">COM2_IRQ</irq>
+        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to.">0</target_vm_id>
+        <target_uart_id configurable="0" desc="target vUART ID that vCOM2 connect to">1</target_uart_id>
     </vuart>
   </vm>
 </acrn-config>
diff --git a/misc/acrn-config/xmls/config-xmls/template/POST_RT_VM.xml b/misc/acrn-config/xmls/config-xmls/template/POST_RT_VM.xml
index f8ab97e69..98f14428b 100644
--- a/misc/acrn-config/xmls/config-xmls/template/POST_RT_VM.xml
+++ b/misc/acrn-config/xmls/config-xmls/template/POST_RT_VM.xml
@@ -11,19 +11,19 @@
         <vcpu_clos>0</vcpu_clos>
     </clos>
     <epc_section configurable="0" desc="epc section">
-        <base desc="SGX EPC section base, must be page aligned"></base>
-        <size desc="SGX EPC section size in Bytes, must be page aligned"></size>
+        <base desc="SGX EPC section base, must be page aligned">0</base>
+        <size desc="SGX EPC section size in Bytes, must be page aligned">0</size>
     </epc_section>
     <vuart id="0">
         <type configurable="0" desc="vCOM1 type">VUART_LEGACY_PIO</type>
-        <base desc="vUART0 (A.K.A COM1) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
+        <base desc="vUART0 (A.K.A COM1) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">COM1_BASE</base>
         <irq configurable="0" desc="vCOM1 irq">COM1_IRQ</irq>
     </vuart>
     <vuart id="1">
         <type configurable="0" desc="vCOM2 type">VUART_LEGACY_PIO</type>
         <base desc="vUART1 (A.K.A COM2) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
         <irq configurable="0" desc="vCOM2 irq">COM2_IRQ</irq>
-        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to."></target_vm_id>
+        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to.">0</target_vm_id>
         <target_uart_id configurable="0" desc="target vUART ID that vCOM2 connect to">1</target_uart_id>
     </vuart>
   </vm>
diff --git a/misc/acrn-config/xmls/config-xmls/template/POST_STD_VM.xml b/misc/acrn-config/xmls/config-xmls/template/POST_STD_VM.xml
index 56d3ff0eb..959348268 100644
--- a/misc/acrn-config/xmls/config-xmls/template/POST_STD_VM.xml
+++ b/misc/acrn-config/xmls/config-xmls/template/POST_STD_VM.xml
@@ -11,8 +11,8 @@
         <vcpu_clos>0</vcpu_clos>
     </clos>
     <epc_section configurable="0" desc="epc section">
-        <base desc="SGX EPC section base, must be page aligned"></base>
-        <size desc="SGX EPC section size in Bytes, must be page aligned"></size>
+        <base desc="SGX EPC section base, must be page aligned">0</base>
+        <size desc="SGX EPC section size in Bytes, must be page aligned">0</size>
     </epc_section>
     <vuart id="0">
         <type configurable="0" desc="vCOM1 type">VUART_LEGACY_PIO</type>
@@ -23,7 +23,7 @@
         <type configurable="0" desc="vCOM2 type">VUART_LEGACY_PIO</type>
         <base desc="vUART1 (A.K.A COM2) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
         <irq configurable="0" desc="vCOM2 irq">COM2_IRQ</irq>
-        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to."></target_vm_id>
+        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to.">0</target_vm_id>
         <target_uart_id configurable="0" desc="target vUART ID that vCOM2 connect to">1</target_uart_id>
     </vuart>
   </vm>
diff --git a/misc/acrn-config/xmls/config-xmls/template/PRE_STD_VM.xml b/misc/acrn-config/xmls/config-xmls/template/PRE_STD_VM.xml
index b3903aa1c..0c1dc20b6 100644
--- a/misc/acrn-config/xmls/config-xmls/template/PRE_STD_VM.xml
+++ b/misc/acrn-config/xmls/config-xmls/template/PRE_STD_VM.xml
@@ -12,8 +12,8 @@
         <vcpu_clos>0</vcpu_clos>
     </clos>
     <epc_section configurable="0" desc="epc section">
-        <base desc="SGX EPC section base, must be page aligned"></base>
-        <size desc="SGX EPC section size in Bytes, must be page aligned"></size>
+        <base desc="SGX EPC section base, must be page aligned">0</base>
+        <size desc="SGX EPC section size in Bytes, must be page aligned">0</size>
     </epc_section>
     <memory>
         <start_hpa desc="The start physical address in host for the VM"></start_hpa>
@@ -38,7 +38,7 @@
         <type configurable="0" desc="vCOM2 type">VUART_LEGACY_PIO</type>
         <base desc="vUART1 (A.K.A COM2) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
         <irq configurable="0" desc="vCOM2 irq">COM2_IRQ</irq>
-        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to."></target_vm_id>
+        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to.">0</target_vm_id>
         <target_uart_id configurable="0" desc="target vUART ID that vCOM2 connect to">1</target_uart_id>
     </vuart>
     <pci_devs desc="pci devices list">
diff --git a/misc/acrn-config/xmls/config-xmls/template/SAFETY_VM.xml b/misc/acrn-config/xmls/config-xmls/template/SAFETY_VM.xml
index 54358a16b..8e2321f26 100644
--- a/misc/acrn-config/xmls/config-xmls/template/SAFETY_VM.xml
+++ b/misc/acrn-config/xmls/config-xmls/template/SAFETY_VM.xml
@@ -12,8 +12,8 @@
         <vcpu_clos>0</vcpu_clos>
     </clos>
     <epc_section configurable="0" desc="epc section">
-        <base desc="SGX EPC section base, must be page aligned"></base>
-        <size desc="SGX EPC section size in Bytes, must be page aligned"></size>
+        <base desc="SGX EPC section base, must be page aligned">0</base>
+        <size desc="SGX EPC section size in Bytes, must be page aligned">0</size>
     </epc_section>
     <memory>
         <start_hpa desc="The start physical address in host for the VM"></start_hpa>
@@ -39,7 +39,7 @@
         <type configurable="0" desc="vCOM2 type">VUART_LEGACY_PIO</type>
         <base desc="vUART1 (A.K.A COM2) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
         <irq configurable="0" desc="vCOM2 irq">COM2_IRQ</irq>
-        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to."></target_vm_id>
+        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to.">0</target_vm_id>
         <target_uart_id configurable="0" desc="target vUART ID that vCOM2 connect to">1</target_uart_id>
     </vuart>
     <pci_devs configurable="0" desc="pci devices list">
diff --git a/misc/acrn-config/xmls/config-xmls/template/SOS_VM.xml b/misc/acrn-config/xmls/config-xmls/template/SOS_VM.xml
index 9b32392c7..314d2cbf0 100644
--- a/misc/acrn-config/xmls/config-xmls/template/SOS_VM.xml
+++ b/misc/acrn-config/xmls/config-xmls/template/SOS_VM.xml
@@ -13,7 +13,7 @@
         <size configurable="0" desc="The memory size in Bytes for the VM">0x20000000</size>
     </memory>
     <os_config>
-        <name desc="Specify the OS name of VM, currently it is not referenced by hypervisor code.">ACRN Service OS</name>
+        <name desc="Specify the OS name of VM, currently it is not referenced by hypervisor code."></name>
         <kern_type desc="Specify the VM name which will be shown in hypervisor console command: vm_list."></kern_type>
         <kern_mod desc="The tag for kernel image which act as multiboot module, it must exactly match the module tag in GRUB multiboot cmdline."></kern_mod>
         <ramdisk_mod desc="The tag for ramdisk image which act as multiboot module, it must exactly match the module tag in GRUB multiboot cmdline."></ramdisk_mod>
@@ -28,7 +28,7 @@
         <type configurable="0" desc="vCOM2 type">VUART_LEGACY_PIO</type>
         <base desc="vUART1 (A.K.A COM2) enabling switch. Enable by exposing its base address, disable by returning invalid base address.">INVALID_COM_BASE</base>
         <irq configurable="0" desc="vCOM2 irq">SOS_COM2_IRQ</irq>
-        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to."></target_vm_id>
+        <target_vm_id desc="COM2 is used for VM communications. When it is enabled, please specify which target VM that current VM connect to.">2</target_vm_id>
         <target_uart_id configurable="0" desc="target vUART ID that vCOM2 connect to">1</target_uart_id>
     </vuart>
     <pci_devs configurable="0" desc="pci devices list">