config_tools: scenario setting UI with xsd schema config

render scenario setting UI with xsd schema config, validate scenario
setting with xsd validation.

Tracked-On: #5672

Signed-off-by: Shuang Zheng <shuang.zheng@intel.com>
Reviewed-by: Mao, Junjie <junjie.mao@intel.com>
Reviewed-by: Victor Sun <victor.sun@intel.com>

misc/config_tools/config_app/controller.py

@@ -6,7 +6,9 @@
 """
 
 import os
-import xml.etree.ElementTree as ElementTree
+from xmlschema import XMLSchema11
+from xmlschema.validators import Xsd11Element, XsdSimpleType, XsdAtomicBuiltin, Xsd11ComplexType, Xsd11Group, Xsd11Attribute
+import lxml.etree as etree
 
 
 class XmlConfig:
@@ -29,7 +31,7 @@ class XmlConfig:
         if os.path.splitext(xml_file)[1] != '.xml':
             return xml_type
         try:
-            tree = ElementTree.parse(xml_file)
+            tree = etree.parse(xml_file)
             root = tree.getroot()
             if 'uos_launcher' in root.attrib:
                 xml_type = 'uos_launcher'
@@ -93,7 +95,7 @@ class XmlConfig:
                 if self._default \
                 else os.path.join(self._xml_path, 'user_defined', self._curr_xml + '.xml')
 
-            tree = ElementTree.parse(xml_path)
+            tree = etree.parse(xml_path)
             self._curr_xml_tree = tree
         except ValueError:
             print('xml parse error: {}'.format(xml))
@@ -170,7 +172,7 @@ class XmlConfig:
                     new_node_desc = node.attrib['desc']
                 dest_node.remove(node)
         for value in values:
-            new_node = ElementTree.SubElement(dest_node, tag)
+            new_node = etree.SubElement(dest_node, tag)
             new_node.text = value
             if new_node_desc is not None:
                 new_node.attrib['desc'] = new_node_desc
@@ -203,9 +205,9 @@ class XmlConfig:
         dest_node = self._get_dest_node(*args)
 
         if key in ['vm']:
-            ElementTree.SubElement(dest_node, key, attrib={'id': value, 'desc': desc})
+            etree.SubElement(dest_node, key, attrib={'id': value, 'desc': desc})
         else:
-            new_node = ElementTree.SubElement(dest_node, key, attrib={'desc': desc})
+            new_node = etree.SubElement(dest_node, key, attrib={'desc': desc})
             new_node.text = value
 
     def get_curr_elem(self, *args):
@@ -346,3 +348,169 @@ class XmlConfig:
         else:
             if depth and (not element.tail or not element.tail.strip()):
                 element.tail = i
+
+
+def get_acrn_config_element(xsd_file):
+    """
+    return the root element for the xsd file
+    :param xsd_file: the input xsd schema file
+    :return: the root element of the xsd file
+    """
+    # schema = XMLSchema11(xsd_file)
+    xsd_doc = etree.parse(xsd_file)
+    xsd_doc.xinclude()
+    schema = XMLSchema11(etree.tostring(xsd_doc, encoding="unicode"))
+
+    xsd_element_root = schema.root_elements[0]
+    acrn_config_element_root = xsd_2_acrn_config_element(xsd_element_root)
+    # doc_dict = acrn_config_element_2_doc_dict(acrn_config_element_root, {})
+    # enum_dict = acrn_config_element_2_enum_dict(acrn_config_element_root, {})
+    # xpath_dict = acrn_config_element_2_xpath_dict(acrn_config_element_root, {})
+
+    # from pprint import pprint
+    # pprint(acrn_config_element_root)
+    # pprint(xpath_dict)
+
+    return acrn_config_element_root
+
+
+def xsd_2_acrn_config_element(xsd_element, layer=0, index=0, path=''):
+    """
+    translate XSD element to ACRN config element
+    :param xsd_element: the xsd element
+    :param layer: current layer
+    :param index: current index of current layer
+    :param path: path of current element
+    :return: ACRN config element
+    """
+    acrn_config_element = {
+        'name': xsd_element.name,
+        'type': None,
+        'path': path+'/'+xsd_element.name,
+        'layer': layer,
+        'index': index,
+        'doc': None,
+        'configurable': 'y',
+        'readonly': 'n',
+        'multiselect': 'n',
+        'default': xsd_element.default,
+        'attributes': None,
+        # 'minOccurs': None,
+        # 'maxOccurs': None,
+        'enumeration': None,
+        'sub_elements': None
+    }
+    if isinstance(xsd_element.type, Xsd11ComplexType):
+        acrn_config_element['type'] = xsd_element.type.name
+        for xsd_component in xsd_element.type.iter_components():
+            if isinstance(xsd_component, Xsd11Group):
+                if acrn_config_element['sub_elements'] is None:
+                    acrn_config_element['sub_elements'] = {'all':[], 'choice':[], 'sequence':[]}
+                index = 0
+                for sub_xsd_component in xsd_component.iter_components():
+                    if isinstance(sub_xsd_component, Xsd11Element):
+                        sub_acrn_config_element = xsd_2_acrn_config_element(sub_xsd_component, layer+1,
+                                                                            index, path+'/'+xsd_element.name)
+                        acrn_config_element['sub_elements'][xsd_component.model].append(sub_acrn_config_element)
+                        index += 1
+    else:
+        if isinstance(xsd_element.type, XsdAtomicBuiltin):
+            acrn_config_element['type'] = xsd_element.type.name
+        elif isinstance(xsd_element.type.base_type, XsdSimpleType):
+            acrn_config_element['type'] = xsd_element.type.base_type.name
+        else:
+            acrn_config_element['type'] = xsd_element.type.name
+        if xsd_element.type.enumeration:
+            acrn_config_element['enumeration'] = xsd_element.type.enumeration
+
+    annotation = None
+    if hasattr(xsd_element, 'annotation') and xsd_element.annotation:
+        annotation = xsd_element.annotation
+    elif hasattr(xsd_element.type, 'annotation') and xsd_element.type.annotation:
+        annotation = xsd_element.type.annotation
+    if annotation:
+        if annotation.documentation:
+            doc_list = [documentation.text for documentation in annotation.documentation]
+            acrn_config_element['doc'] = '\n'.join(doc_list)
+        for key in annotation.elem.keys():
+            if key.endswith('configurable'):
+                acrn_config_element['configurable'] = annotation.elem.get(key)
+            elif key.endswith('readonly'):
+                acrn_config_element['readonly'] = annotation.elem.get(key)
+            elif key.endswith('multiselect'):
+                acrn_config_element['multiselect'] = annotation.elem.get(key)
+
+    if xsd_element.attributes:
+        attrs = []
+        for attr in xsd_element.attributes.iter_components():
+            if isinstance(attr, Xsd11Attribute):
+                attrs.append({'name': attr.name, 'type': attr.type.name})
+        acrn_config_element['attributes'] = attrs
+
+    return acrn_config_element
+
+def acrn_config_element_2_doc_dict(acrn_config_element, doc_dict):
+    """
+    get the dictionary for documentation of all configurable elements by ACRN config element.
+    :param acrn_config_element: the ACRN config element
+    :param doc_dict: the dictionary to save documentation of all configurable elements
+    :return: the dictionary to save documentation of all configurable elements
+    """
+    if 'doc' in acrn_config_element and 'path' in acrn_config_element \
+        and acrn_config_element['path'] not in doc_dict:
+        if acrn_config_element['doc']:
+            doc_dict[acrn_config_element['path']] = acrn_config_element['doc']
+        else:
+            doc_dict[acrn_config_element['path']] = acrn_config_element['name']
+
+    if 'sub_elements' in acrn_config_element and acrn_config_element['sub_elements']:
+        for order_type in acrn_config_element['sub_elements']:
+            for element in acrn_config_element['sub_elements'][order_type]:
+                doc_dict = acrn_config_element_2_doc_dict(element, doc_dict)
+    return doc_dict
+
+def acrn_config_element_2_enum_dict(acrn_config_element, enum_dict):
+    """
+    get the dictionary for enumeration of all configurable elements by ACRN config element.
+    :param acrn_config_element: the ACRN config element
+    :param enum_dict: the dictionary to save enumeration of all configurable elements
+    :return: the dictionary to save enumeration of all configurable elements
+    """
+    if 'enumeration' in acrn_config_element and 'path' in acrn_config_element \
+        and acrn_config_element['path'] not in enum_dict \
+        and acrn_config_element['enumeration']:
+        enum_dict[acrn_config_element['path']] = acrn_config_element['enumeration']
+    if 'sub_elements' in acrn_config_element and acrn_config_element['sub_elements']:
+        for order_type in acrn_config_element['sub_elements']:
+            for element in acrn_config_element['sub_elements'][order_type]:
+                enum_dict = acrn_config_element_2_enum_dict(element, enum_dict)
+    return enum_dict
+
+def acrn_config_element_2_xpath_dict(acrn_config_element, xpath_dict):
+    """
+    get the dictionary for xpath of all configurable elements by ACRN config element.
+    :param acrn_config_element: the ACRN config element
+    :param xpath_dict: the dictionary to save xpath of all configurable elements
+    :return: the dictionary to save xpath of all configurable elements
+    """
+    if acrn_config_element['path'] not in xpath_dict.keys():
+        xpath_dict[acrn_config_element['path']] = {
+            'name': acrn_config_element['name'],
+            'type': acrn_config_element['type'],
+            'layer': acrn_config_element['layer'],
+            'index': acrn_config_element['index'],
+            'doc': acrn_config_element['doc'] if acrn_config_element['doc'] else acrn_config_element['name'],
+            'configurable': acrn_config_element['configurable'],
+            'readonly': acrn_config_element['readonly'],
+            'multiselect': acrn_config_element['multiselect'],
+            'default': acrn_config_element['default'],
+            'attributes': acrn_config_element['attributes'],
+            # 'minOccurs': None,
+            # 'maxOccurs': None,
+            'enumeration': acrn_config_element['enumeration']
+        }
+    if 'sub_elements' in acrn_config_element and acrn_config_element['sub_elements']:
+        for order_type in acrn_config_element['sub_elements']:
+            for element in acrn_config_element['sub_elements'][order_type]:
+                enum_dict = acrn_config_element_2_xpath_dict(element, xpath_dict)
+    return xpath_dict

misc/config_tools/config_app/requirements

@@ -1,3 +1,4 @@
 Flask==1.1.1
 flask_bootstrap==3.3.7.1
-
+xmlschema==1.4.1
+lxml==4.6.2

misc/config_tools/config_app/templates/scenario.html

@@ -121,7 +121,8 @@ the source files will be generated into default path and overwirte the previous
                 {% do vm_kata.append(1) %}
             {% endif %}
             {% set first_multi_child = {'IVSHMEM_REGION': 0, 'communication_vuart': 1} %}
-            {% if 'configurable' not in vm.attrib or vm.attrib['configurable'] != '0'%}
+            {% if xpath_dict['/'.join(['/acrn-config', vm.tag])]['configurable'] == 'y' or
+                vm.xpath(xpath_dict['/'.join(['/acrn-config', vm.tag])]['configurable'])%}
             <tr>
                 <td>
                     {% if vm.tag != 'vm' %}
@@ -157,16 +158,16 @@ the source files will be generated into default path and overwirte the previous
                 <td>
                 {% for elem in vm|list %}
                     {% set elem_text = elem.text if elem.text != None else '' %}
-                    {% if elem|list == [] and ('configurable' not in elem.attrib or elem.attrib['configurable']
+                    {% if elem|list == [] and (xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['configurable']
-                    != '0')%}
+                    == 'y' or elem.xpath(xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['configurable']))%}
                     <div class="form-group">
                         <label class="col-sm-1 control-label" data-toggle="tooltip"
-                               title="{{elem.attrib['desc'] if 'desc' in elem.attrib else elem.tag}}">{{elem.tag}}</label>
+                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['doc']}}">{{elem.tag}}</label>
                         <label class="col-sm-2 control-label"></label>
 
                         {% if ','.join([vm.tag, elem.tag]) not in scenario_item_values %}
                         <div class="col-sm-6">
-                            {% if 'readonly' in elem.attrib and elem.attrib['readonly'] == 'true' %}
+                            {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['readonly'] == 'y' %}
                             <input type="text" class="form-control" id="{{vm_type+','+elem.tag}}"
                                    value="{{elem_text}}" readonly>
                             {% else %}
@@ -176,7 +177,7 @@ the source files will be generated into default path and overwirte the previous
                         </div>
                         {% else %}
                         <div class="dropdown col-sm-6">
-                            {% if 'readonly' in elem.attrib and elem.attrib['readonly'] == 'true' %}
+                            {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['readonly'] == 'y' %}
                             <select class="selectpicker" data-width="auto"
                                     id="{{vm_type+','+elem.tag}}" disabled>
                             {% else %}
@@ -196,9 +197,9 @@ the source files will be generated into default path and overwirte the previous
                         {% endif %}
                         <p id="{{vm_type+','+elem.tag}}_err" class="col-sm-3"></p>
                     </div>
-                    {% elif elem|list != [] and ('configurable' not in elem.attrib or elem.attrib['configurable']
+                    {% elif elem|list != [] and (xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['configurable']
-                    != '0')%}
+                    == 'y' or elem.xpath(xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['configurable']))%}
-                        {% if 'multiselect' not in elem.attrib or elem.attrib['multiselect'] != 'true' %}
+                        {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['multiselect'] != 'y' %}
                             {% set first_child = [] %}
                             {% for sub_elem in elem|list %}
                                 {% set sub_elem_text = sub_elem.text if sub_elem.text != None else '' %}
@@ -209,13 +210,13 @@ the source files will be generated into default path and overwirte the previous
                                     {% if ','.join([vm.tag, elem.tag, sub_elem.tag, sub_elem_2.tag]) in scenario_item_values %}
                                     <div class="form-group">
                                         <label class="col-sm-1 control-label" data-toggle="tooltip"
-                                               title="{{elem.attrib['desc'] if 'desc' in elem.attrib else elem.tag}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['doc']}}">
                                         </label>
                                         <label class="col-sm-2 control-label" data-toggle="tooltip"
-                                               title="{{sub_elem_2.attrib['desc'] if 'desc' in sub_elem_2.attrib else sub_elem.attrib['desc']}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag, sub_elem_2.tag])]['doc']}}">
                                             {{sub_elem.tag}}&nbsp;&nbsp;&nbsp;&nbsp;{{sub_elem_2.tag}}</label>
                                         <div class="dropdown col-sm-6">
-                                        {% if 'readonly' in sub_elem_2.attrib and sub_elem_2.attrib['readonly'] == 'true' %}
+                                        {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag, sub_elem_2.tag])]['readonly'] == 'y' %}
                                         <select class="selectpicker" data-width="auto"
                                                 id="{{vm_type+','+elem.tag+','+sub_elem.tag+','+sub_elem_2.tag}}" disabled>
                                         {% else %}
@@ -237,17 +238,17 @@ the source files will be generated into default path and overwirte the previous
 				                    {% else %}
                                     <div class="form-group">
                                         <label class="col-sm-1 control-label" data-toggle="tooltip"
-                                               title="{{elem.attrib['desc'] if 'desc' in elem.attrib else elem.tag}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['doc']}}">
                                         </label>
                                         <label class="col-sm-2 control-label" data-toggle="tooltip"
-                                               title="{{sub_elem_2.attrib['desc'] if 'desc' in sub_elem_2.attrib else sub_elem.attrib['desc']}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag, sub_elem_2.tag])]['doc']}}">
                                         {{sub_elem.tag}}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{{sub_elem_2.tag}}</label>
                                         {% if sub_elem_2.tag in ['IVSHMEM_REGION'] %}
                                         <div class="col-sm-5">
                                         {% else %}
                                         <div class="col-sm-6">
                                         {% endif %}
-                                        {% if 'readonly' in sub_elem_2.attrib and sub_elem_2.attrib['readonly'] == 'true' %}
+                                        {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag, sub_elem_2.tag])]['readonly'] == 'y' %}
                                         <input type="text" class="form-control"
                                                id="{{vm_type+','+elem.tag+','+sub_elem.tag+','+sub_elem_2.tag}}"
                                                readonly vaule="{{sub_elem_2_text}}"></input>
@@ -278,28 +279,28 @@ the source files will be generated into default path and overwirte the previous
 
                                 {% else %}
 
-                                {% if 'configurable' not in sub_elem.attrib or sub_elem.attrib['configurable'] != '0' %}
+                                {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['configurable'] == 'y' or
+                                        sub_elem.xpath(xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['configurable'])%}
                                 <div class="form-group">
                                     {% if 'id' not in elem.attrib %}
                                         {% if not first_child %}
                                         <label class="col-sm-1 control-label" data-toggle="tooltip"
-                                               title="{{elem.attrib['desc'] if 'desc' in elem.attrib else elem.tag}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['doc']}}">
                                             {{elem.tag}}</label>
                                         {% else %}
-                                        <label class="col-sm-1 control-label" data-toggle="tooltip"
+                                        <label class="col-sm-1 control-label" data-toggle="tooltip">
-                                               title="{{elem.attrib['desc'] if 'desc' in elem.attrib else elem.tag}}">
                                         </label>
                                         {% endif %}
 
                                         <label class="col-sm-2 control-label" data-toggle="tooltip"
-                                               title="{{sub_elem.attrib['desc'] if 'desc' in sub_elem.attrib else sub_elem.tag}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['doc']}}">
                                             {{sub_elem.tag}}</label>
 
                                         {% if ','.join([vm.tag, elem.tag, sub_elem.tag]) not in scenario_item_values
                                             and elem.tag != 'cpu_affinity' and elem.tag != 'pci_devs' %}
                                             {% if sub_elem.tag in ['bootargs', 'kern_args'] %}
                                                 <div class="col-sm-6">
-                                                {% if 'readonly' in sub_elem.attrib and sub_elem.attrib['readonly'] == 'true' %}
+                                                {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['readonly'] == 'y' %}
                                                 <textarea type="text" class="form-control" style="height:120px"
                                                           id="{{vm_type+','+elem.tag+','+sub_elem.tag}}"
                                                           readonly>{{sub_elem_text}}</textarea>
@@ -310,7 +311,7 @@ the source files will be generated into default path and overwirte the previous
                                                 </div>
                                             {% else %}
                                                 <div class="col-sm-6">
-                                                {% if 'readonly' in sub_elem.attrib and sub_elem.attrib['readonly'] == 'true' %}
+                                                {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['readonly'] == 'y' %}
                                                 <input type="text" class="form-control"
                                                        id="{{vm_type+','+elem.tag+','+sub_elem.tag}}"
                                                        value="{{sub_elem_text}}" readonly>
@@ -326,7 +327,7 @@ the source files will be generated into default path and overwirte the previous
                                             {% set item_key = ','.join([vm.tag, elem.tag, sub_elem.tag]) if elem.tag != 'cpu_affinity'
                                              and elem.tag != 'pci_devs' else ','.join([vm.tag, elem.tag]) %}
                                             <div class="dropdown col-sm-6">
-                                                {% if 'readonly' in sub_elem.attrib and sub_elem.attrib['readonly'] == 'true' %}
+                                                {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['readonly'] == 'y' %}
                                                 <select class="selectpicker" data-width="auto"
                                                         id="{{vm_type+','+elem.tag+','+sub_elem.tag}}" disabled>
                                                 {% else %}
@@ -368,24 +369,23 @@ the source files will be generated into default path and overwirte the previous
                                         {% do first_child.append(1) %}
                                         <label class="col-sm-1 control-label" data-toggle="tooltip"
                                                id="{{vm_type+','+elem.tag+':id='+elem.attrib['id']+','+sub_elem.tag}}_label1"
-                                               title="{{sub_elem.attrib['desc'] if 'desc' in sub_elem.attrib else sub_elem.tag}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['doc']}}">
                                             {{elem.tag+' '+elem.attrib['id']}}</label>
                                         {% else %}
                                         <label class="col-sm-1 control-label" data-toggle="tooltip"
-                                               id="{{vm_type+','+elem.tag+':id='+elem.attrib['id']+','+sub_elem.tag}}_label1"
+                                               id="{{vm_type+','+elem.tag+':id='+elem.attrib['id']+','+sub_elem.tag}}_label1">
-                                               title="{{sub_elem.attrib['desc'] if 'desc' in sub_elem.attrib else sub_elem.tag}}">
                                         </label>
                                         {% endif %}
 
                                         <label class="col-sm-2 control-label" data-toggle="tooltip"
                                                id="{{vm_type+','+elem.tag+':id='+elem.attrib['id']+','+sub_elem.tag}}_label2"
-                                               title="{{sub_elem.attrib['desc'] if 'desc' in sub_elem.attrib else sub_elem.tag}}">
+                                               title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['doc']}}">
                                             {{sub_elem.tag}}</label>
                                         {% if (','.join([vm.tag, elem.tag, sub_elem.tag]) not in scenario_item_values) and
                                         ((elem.tag!='vuart' and elem.tag!='legacy_vuart') or sub_elem.tag!='base') %}
                                             <div class="col-sm-6"
                                                  id="{{vm_type+','+elem.tag+':id='+elem.attrib['id']+','+sub_elem.tag}}_config">
-                                                {% if 'readonly' in sub_elem.attrib and sub_elem.attrib['readonly'] == 'true' %}
+                                                {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['readonly'] == 'y' %}
                                                 <input type="text" class="form-control"
                                                        id="{{vm_type+','+elem.tag+':id='+elem.attrib['id']+','+sub_elem.tag}}"
                                                        value="{{sub_elem_text}}" readonly>
@@ -399,7 +399,7 @@ the source files will be generated into default path and overwirte the previous
 
                                             <div class="dropdown col-sm-6">
 
-                                                {% if 'readonly' in sub_elem.attrib and sub_elem.attrib['readonly'] == 'true' %}
+                                                {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag, sub_elem.tag])]['readonly'] == 'y' %}
                                                 <select class="selectpicker" data-width="auto" disabled
                                                         id="{{vm_type+','+elem.tag+':id='+elem.attrib['id']+','+sub_elem.tag}}">
                                                 {% else %}
@@ -436,14 +436,14 @@ the source files will be generated into default path and overwirte the previous
                                 {% endif %}
                                 {% endif %}
                             {% endfor %}
-                        {% elif 'configurable' not in elem.attrib or elem.attrib['configurable'] != '0' %}
+                        {% elif xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['configurable'] == 'y' or
+                                        elem.xpath(xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['configurable'])%}
                             <div class="form-group">
                                 <label class="col-sm-1 control-label" data-toggle="tooltip"
-                                       title="{{elem.attrib['desc'] if 'desc' in elem.attrib else elem.tag}}">{{elem.tag}}</label>
+                                       title="{{xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['doc']}}">{{elem.tag}}</label>
-                                <label class="col-sm-2 control-label" data-toggle="tooltip"
+                                <label class="col-sm-2 control-label" data-toggle="tooltip"></label>
-                                       title="{{elem.attrib['desc'] if 'desc' in elem.attrib else elem.tag}}"></label>
                                 <div class="dropdown col-sm-6">
-                                    {% if 'readonly' in elem.attrib and elem.attrib['readonly'] == 'true' %}
+                                    {% if xpath_dict['/'.join(['/acrn-config', vm.tag, elem.tag])]['readonly'] == 'y' %}
                                     <select class="selectpicker" data-width="auto" disabled
                                             id="{{vm_type+','+elem.tag+','+elem.tag[:-1]}}"
                                             multiple>

misc/config_tools/config_app/views.py

@@ -19,7 +19,7 @@ from flask import request, render_template, Blueprint, redirect, url_for, curren
 # Refer to https://github.com/pallets/werkzeug/blob/master/LICENSE.rst for the permission notice.
 from werkzeug.utils import secure_filename
 
-from controller import XmlConfig
+from controller import *
 from scenario_config.scenario_cfg_gen import get_scenario_item_values
 from scenario_config.scenario_cfg_gen import validate_scenario_setting
 from launch_config.launch_cfg_gen import get_launch_item_values
@@ -66,6 +66,9 @@ def scenario(scenario_name):
 
     board_info, board_type, scenario_config, launch_config = get_xml_configs()
     (bios_info, base_board_info) = get_board_info(board_info)
+    acrn_config_element_root = get_acrn_config_element(
+        os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'schema', 'config.xsd'))
+    xpath_dict = acrn_config_element_2_xpath_dict(acrn_config_element_root, {})
 
     current_app.config.update(SCENARIO=scenario_name)
 
@@ -79,6 +82,9 @@ def scenario(scenario_name):
             scenario_item_values = get_scenario_item_values(
                 os.path.join(os.path.dirname(os.path.abspath(__file__)), 'res', board_info+'.xml'),
                 scenario_file_path)
+    for xpath in xpath_dict:
+        if xpath_dict[xpath]['enumeration'] and len(xpath.split('/')) > 2:
+            scenario_item_values[','.join(xpath.split('/')[2:])] = xpath_dict[xpath]['enumeration']
 
     return render_template('scenario.html', board_info_list=get_board_list(),
                            board_info=board_info, board_type=board_type,
@@ -86,7 +92,8 @@ def scenario(scenario_name):
                            scenarios=scenario_config.list_all(xml_type='scenario'),
                            launches=launch_config.list_all(xml_type='uos_launcher'),
                            scenario=scenario_name, root=scenario_config.get_curr_root(),
-                           scenario_item_values=scenario_item_values)
+                           scenario_item_values=scenario_item_values,
+                           xpath_dict=xpath_dict)
 
 
 @CONFIG_APP.route('/launch', methods=['GET'])
@@ -1009,7 +1016,7 @@ def get_board_type(board_info):
     board_type = None
     if board_config is not None:
         board_info_root = board_config.get_curr_root()
-        if board_info_root and 'board' in board_info_root.attrib:
+        if board_info_root is not None and 'board' in board_info_root.attrib:
             board_type = board_info_root.attrib['board']
 
     return board_type
@@ -1026,7 +1033,7 @@ def get_board_info(board_info):
     base_board_info = None
     if board_config is not None:
         board_info_root = board_config.get_curr_root()
-        if board_info_root:
+        if board_info_root is not None:
             for item in list(board_info_root):
                 if item.tag == 'BIOS_INFO':
                     for line in item.text.split('\n'):
@@ -1096,7 +1103,7 @@ def get_board_rdt_res_clos_max(board_file_name):
 
     if board_config is not None:
         board_info_root = board_config.get_curr_root()
-        if board_info_root:
+        if board_info_root is not None:
             for item in list(board_info_root):
                 if item.tag == 'CLOS_INFO':
                     for line in item.text.split('\n'):