diff --git a/misc/config_tools/scenario_config/vm_configurations_h.py b/misc/config_tools/scenario_config/vm_configurations_h.py
index bbb3ecfc7..5c92e9d39 100644
--- a/misc/config_tools/scenario_config/vm_configurations_h.py
+++ b/misc/config_tools/scenario_config/vm_configurations_h.py
@@ -82,20 +82,6 @@ def gen_header_file(scenario_items, config):
     gen_sos_header(scenario_items, config)
 
 
-def get_dm_owned_guest_flag_mask(vm_info, config):
-
-    print("", file=config)
-    if "SERVICE_VM" not in common.VM_TYPES.values():
-        print("#define DM_OWNED_GUEST_FLAG_MASK        0UL", file=config)
-    else:
-        print("/* Bits mask of guest flags that can be programmed by device model." +
-              " Other bits are set by hypervisor only */", file=config)
-        print("#define DM_OWNED_GUEST_FLAG_MASK        " +
-              "(GUEST_FLAG_SECURE_WORLD_ENABLED | GUEST_FLAG_LAPIC_PASSTHROUGH | \\\n" +
-              "\t\t\t\t\t\tGUEST_FLAG_RT | GUEST_FLAG_IO_COMPLETION_POLLING)", file=config)
-    print("", file=config)
-
-
 def generate_file(scenario_items, config):
     """
     Start to generate vm_configurations.h
@@ -108,7 +94,6 @@ def generate_file(scenario_items, config):
     print("#include <misc_cfg.h>", file=config)
     print("#include <pci_devices.h>", file=config)
     scenario_vm_num(scenario_items, config)
-    get_dm_owned_guest_flag_mask(vm_info, config)
 
     gen_header_file(scenario_items, config)
     print("{0}".format(VM_END_DEFINE), file=config)
diff --git a/misc/config_tools/xforms/vm_configurations.h.xsl b/misc/config_tools/xforms/vm_configurations.h.xsl
index 7163b7a76..04900da5f 100644
--- a/misc/config_tools/xforms/vm_configurations.h.xsl
+++ b/misc/config_tools/xforms/vm_configurations.h.xsl
@@ -31,7 +31,6 @@
 
   <xsl:template match="config-data/acrn-config">
     <xsl:call-template name="vm_count" />
-    <xsl:call-template name="dm_guest_flag" />
     <xsl:call-template name="pre_launched_vm_hpa" />
     <xsl:call-template name="sos_vm_bootarges" />
   </xsl:template>
@@ -45,19 +44,6 @@
     <xsl:value-of select="acrn:define('CONFIG_MAX_VM_NUM', hv/CAPACITIES/MAX_VM_NUM , 'U')" />
   </xsl:template>
 
-  <xsl:template name ="dm_guest_flag">
-    <xsl:choose>
-      <xsl:when test="count(vm[vm_type='SERVICE_VM'])">
-        <xsl:value-of select="acrn:comment('Bitmask of guest flags that can be programmed by device model. Other bits are set by hypervisor only.')" />
-        <xsl:value-of select="$newline" />
-        <xsl:value-of select="acrn:define('DM_OWNED_GUEST_FLAG_MASK', '(GUEST_FLAG_SECURE_WORLD_ENABLED | GUEST_FLAG_LAPIC_PASSTHROUGH | GUEST_FLAG_RT | GUEST_FLAG_IO_COMPLETION_POLLING)', '')" />
-      </xsl:when>
-      <xsl:otherwise>
-      <xsl:value-of select="acrn:define('DM_OWNED_GUEST_FLAG_MASK', '0', 'UL')" />
-      </xsl:otherwise>
-    </xsl:choose>
-  </xsl:template>
-
   <xsl:template name ="sos_vm_bootarges">
     <xsl:if test="count(vm[vm_type='SERVICE_VM'])">
       <xsl:value-of select="acrn:comment(concat('SERVICE_VM == VM', vm[vm_type='SERVICE_VM']/@id))" />