﻿<?xml version="1.0" encoding="UTF-8"?>
<!--
Filename: DistributionPackage.xsd

Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.

This program and the accompanying materials are licensed and made available 
under the terms and conditions of the BSD License which may be found at 
    http://opensource.org/licenses/bsd-license.php

THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"
    targetNamespace="http://www.uefi.org/2012/1.0" xmlns="http://www.uefi.org/2012/1.0">
    <xs:element name="DistributionPackage">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> This schema defines the UEFI/PI Distribution Package description (PKG)
                file. It describes the content of:</xs:documentation>
            <xs:documentation xml:lang="en-us"> 1) Package descriptions with definitions and headers.</xs:documentation>
            <xs:documentation xml:lang="en-us"> 2) Modules in either source or binary format. (Note that Binary format
                is for FFS leaf section file types only, complete FFS files cannot be distributed using this
                distribution format.) </xs:documentation>
            <xs:documentation xml:lang="en-us"> 3) The distribution of custom tools used to modify the binary images to
                create UEFI/PI compliant images. </xs:documentation>
            <xs:documentation xml:lang="en-us"> 4) Finally, it can be used to distribute other miscellaneous content
                that is not specific to UEFI/PI images. </xs:documentation>
            <xs:documentation xml:lang="en-us"> The Package Surface Area describes the content of packages, while the
                Module Surface Area provides information relevant to source and/or binary distributions.
            </xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>
                <xs:element ref="DistributionHeader" minOccurs="1" maxOccurs="1">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This header contains (legal) information usually required
                            for distributing both binary and/or source code. </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element ref="PackageSurfaceArea" minOccurs="0" maxOccurs="unbounded">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The list of packages in this distribution. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Packages are groups of files and/or modules that are similar
                            in nature.</xs:documentation>
                        <xs:documentation xml:lang="en-us"> Packages are uniquely identified by a package GUID and a
                            package version. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> A package can declare public mappings of C names to GUID
                            values. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> A package can provide header files for library classes
                            and/or other industry standard definitions. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> A package can also declare public mappings of platform
                            configuration database (PCD) &quot;knobs&quot; to control features and operation of modules
                            within a platform. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Finally, a package lists the library instances and/or
                            modules that are provided in a distribution package. </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element ref="ModuleSurfaceArea" minOccurs="0" maxOccurs="unbounded">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The listing of UEFI/PI compliant modules in this
                            distribution that are NOT part of a Package. Every module that is provided as part of a
                            package needs to be described in a PackageSurfaceArea.Modules section. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> The ModuleSurfaceArea section describes how each module in a
                            distribution is coded, or, in the case of a binary module distribution, how it was built. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> UEFI/PI compliant libraries and modules are uniquely
                            identified by the Module's GUID and version number. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> This section will typically be used for modules that don't
                            require any additional files that would be included in a package. For example, the Enhanced
                            FAT driver binary does not need to have a package description, as no additional files are
                            provided. </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element ref="Tools" minOccurs="0" maxOccurs="unbounded">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section is for distributing vendor specific executable
                            tools, tool source code and/or configuration files. These tools are primarily for
                            manipulating code and/or binary images. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Tools in this section can:</xs:documentation>
                        <xs:documentation xml:lang="en-us"> 1) Parse build meta-data files to create source code files
                            and build scripts. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> 2) Modify image files to conform to UEFI/PI specifications. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> 3) Generate binary files from certain types of text/unicode
                            files. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> 4) Generate PCI Option Roms or Firmware Device images. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> 5) Implement external encoding/decoding/signature/GUIDed
                            tools. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> 6) Distribution Package create/install/remove tools.
                        </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element ref="MiscellaneousFiles" minOccurs="0" maxOccurs="unbounded">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The list of miscellaneous files in this distribution. Any
                            files that are not listed in either the Package, Module or Tools sections can be listed
                            here. This section can be used to distribute specifications for packages and modules that
                            are not &quot;industry standards&quot; such as a specification for a chipset or a video
                            device. </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element ref="UserExtensions" minOccurs="0" maxOccurs="unbounded">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The UserExtensions section is used to disseminate processing
                            instructions that may be custom to the content provided by the distribution. This section
                            contains information that is common to all aspects of this disribution. </xs:documentation>
                    </xs:annotation>
                </xs:element>
            </xs:sequence>

        </xs:complexType>
    </xs:element>
    <!-- End of the DistributionPackage Description  -->

    <xs:element name="DistributionHeader">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> This section defines the content of the UEIF/PI compliant Distribution
                Package Header. This is the only required element of a UEFI/PI compliant distribution package.
            </xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="1" maxOccurs="1" name="Name">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This is the User Interface Name for this Distribution
                            Package. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Each Distribution Package is uniquely identified by it's
                            GUID and Version number. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:normalizedString">
                                <xs:attribute name="BaseName" type="xs:NMTOKEN" use="optional">
                                    <xs:annotation>
                                        <xs:documentation xml:lang="en-us"> The reference name of the Distribution
                                            Package file. This single word name can be used by tools as a keyword or for
                                            directory and/or file creation. </xs:documentation>
                                        <xs:documentation xml:lang="en-us"> White space and special characters (dash and
                                            underscore characters may be used) are not permitted in this name.
                                        </xs:documentation>
                                    </xs:annotation>
                                </xs:attribute>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This 128-bit GUID and the Version attribute uniquely
                            identify this Distribution Package. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Backward compatible releases of a distribution package need
                            only change the version number, while non-backward compatible changes require the GUID to
                            change (resetting the version number to 1.0 is optional.) </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="RegistryFormatGuid">
                                <xs:attribute name="Version" type="xs:decimal" use="required">
                                    <xs:annotation>
                                        <xs:documentation xml:lang="en-us"> This value, along with the GUID, is used to
                                            uniquely identify this object. The higher the number, the more recent the
                                            content. </xs:documentation>
                                    </xs:annotation>
                                </xs:attribute>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="1" name="Vendor" type="xs:normalizedString">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> A string identifying who created this distribution package.
                        </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="1" name="Date" type="xs:dateTime">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The date and time this distribution was created. The format
                            is: YYYY-MM-DDThh:mm:ss, for example: 2001-01-31T13:30:00 (note the T character separator
                            between the calendar date and the time. </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="unbounded" name="Copyright">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The copyright for this file that is generated by the creator
                            of the distribution. If a derivative work is generated from an existing distribution, then
                            the existing copyright must be maintained, and additional copyrights may be appended to the
                            end of this element. It may also be the primary copyright for all code provided in the
                            Distribution Package. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:string">
                                <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                    
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="unbounded" name="License">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> A license that describes any restrictions on the use of this
                            distribution. If a derivative work is allowed by the original license and a derivative work
                            is generated from an existing distribution, then the existing license must be maintained,
                            and additional licenses may be appended to the end of this element. It may also be the
                            primary license for all code provided in the distribution file. Alternatively, this may
                            point to a filename that contains the License. The file (included in the content zip file)
                            will be stored in the same location as the distribution package's .pkg file.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:string">
                                <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="unbounded" name="Abstract">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> A one line description of the Distribution Package.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:normalizedString">
                                <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
                <xs:element minOccurs="0" maxOccurs="unbounded" name="Description">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> A complete description of the Distribution Package. This
                            description may include the release name of the file, the version of the file, and a
                            complete description of the file contents and/or features including a description of the
                            updates since the previous file release. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:string">
                                <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
                <xs:element minOccurs="0" maxOccurs="1" name="Signature" type="Md5Sum">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The packaging utilities will use this MD5 sum value of the
                            included ZIP file containing files and/or code. If this element is not present, then
                            installation tools should assume that the content is correct, or that other methods may be
                            needed to verify content. </xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="1" name="XmlSpecification" type="xs:decimal" default="1.1">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This version of this XML Schema is 1.1 </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Changes to 1.1 from 1.0 </xs:documentation>
                        <xs:documentation xml:lang="en-us"> #1 Updated to present date and new version which is
                            important to reflect the present state of the matter</xs:documentation>
                        <xs:documentation xml:lang="en-us"> #2 Added definition/enumeration of UNDEFIND type 2 is
                            important since there is a large body of legacy code for which the GUID’s and other
                            code/data objects were not decorated with their usage. This document will allow for
                            importing today’s source artifacts and producing decorations using the ‘Undefined’ versus
                            having an error</xs:documentation>
                        <xs:documentation xml:lang="en-us">#3 Allow for inclusion of ARM and future architecture
                            types</xs:documentation>
                    </xs:annotation>
                </xs:element>
            </xs:sequence>
            <xs:attribute name="ReadOnly" type="xs:boolean" default="false" use="optional">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> If set to true, all content within this Distribution Package
                        should NOT be modified. The default permits modification of all content. </xs:documentation>
                </xs:annotation>
            </xs:attribute>
            <xs:attribute name="RePackage" type="xs:boolean" default="false" use="optional">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> If set to true, then the content can be repackaged into another
                        distribution package. The default prohibits repackaging the Distribution content.
                    </xs:documentation>
                </xs:annotation>
            </xs:attribute>
        </xs:complexType>
    </xs:element>
    <!-- End of the DistributionHeader element. -->

    <xs:element name="PackageSurfaceArea">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> A package is a collection of related objects - Includes, Libraries and
                Modules. </xs:documentation>
            <xs:documentation xml:lang="en-us"> Each package is uniquely identified by it's GUID and Version number.
                Backward compatible releases of a package need only change the version number, while non-backward
                compatible changes require the GUID to change (resetting the version number to 1.0 is optional.)
            </xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>

                <xs:element minOccurs="1" maxOccurs="1" name="Header">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="1" name="Name">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is the User Interface Name for this
                                        package. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:normalizedString">
                                            <xs:attribute name="BaseName" type="xs:NMTOKEN" use="required">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> This is a single word BaseName
                                                        of the package. This BaseName can be used by tools as a keyword
                                                        and for directory/file creation. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This GUID and the Version attribute uniquely
                                        identify a given package. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="RegistryFormatGuid">
                                            <xs:attribute name="Version" type="xs:decimal" use="required">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> This value, along with the GUID,
                                                        is used to uniquely identify this object. </xs:documentation>
                                                    <xs:documentation xml:lang="en-us"> Backward compatible changes must
                                                        make sure this number is incremented from the most recent
                                                        version. Non-backward compatible changes require a new GUID, and
                                                        the version can be reset. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Copyright">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> If the package requires a different copyright
                                        than the distribution package, this element can list one or more copyright
                                        lines. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>

                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="License">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> If the package requires licenses that are
                                        different from the distribution package license, this element can contain one or
                                        more license text paragraphs (or license filenames.) </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>

                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Abstract">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> A one line description of this package.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:normalizedString">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Description">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> A complete description of a package. This
                                        description may include the release name of the package, the version of the
                                        package, and a complete description of the package contents and/or features
                                        including a description of the updates since the previous package’s release.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="1" maxOccurs="1" name="PackagePath" type="xs:anyURI">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This element is the location (in the ZIP file)
                                        for the root directory of a package. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea Header element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="ClonedFrom">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> The term cloned is used here to indicate that this package
                            as been copied and modified to a completely different package. An example might be for a new
                            generation of chipsets that have few or no elements in common with the original.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This GUID and the Version attribute uniquely
                                        identify the Package that this Package was copied from. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="RegistryFormatGuid">
                                            <xs:attribute name="Version" type="xs:decimal" use="required">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> This value, along with the GUID,
                                                        is used to uniquely identify the package that this package was
                                                        cloned from. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea ClonedFrom element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="LibraryClassDeclarations">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> Library Classes are public interfaces that can be used by
                            modules. One or more library instances can implement a library class, however only one
                            library instance can be linked to an individual module. This provides the platform
                            integrator with the flexibility of choosing one library instance's implementation over a
                            different library instance. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="LibraryClass">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="HeaderFile" type="xs:anyURI">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> The header file provides definitions
                                                    and function prototypes for a library class. Modules can be coded
                                                    against these functions, using the definitions in this header,
                                                    without concerning themselves about the libraries' implementation
                                                    details. This is a PackagePath relative path and filename for the
                                                    include file. </xs:documentation>
                                            </xs:annotation>
                                        </xs:element>
                                        <xs:element minOccurs="0" maxOccurs="1" name="RecommendedInstance">
                                            <xs:complexType>
                                                <xs:sequence>
                                                    <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This GUID and the
                                                            Version attribute uniquely identify the Recommended Library
                                                            Instance. </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:complexType>
                                                            <xs:simpleContent>
                                                            <xs:extension base="RegistryFormatGuid">
                                                            <xs:attribute name="Version" type="xs:decimal"
                                                            use="optional">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This value, along with
                                                            the GUID, is used to uniquely identify this object. If this
                                                            value is not specified, then any version of the library
                                                            instance is recommended. </xs:documentation>
                                                            </xs:annotation>
                                                            </xs:attribute>
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                        </xs:complexType>
                                                    </xs:element>
                                                </xs:sequence>
                                            </xs:complexType>
                                        </xs:element>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="Keyword" type="xs:NCName" use="required">
                                        <xs:annotation>
                                            <xs:documentation xml:lang="en-us"> The single word name of the Library
                                                Class that module developers will use to identify a library class
                                                dependency. </xs:documentation>
                                        </xs:annotation>
                                    </xs:attribute>
                                    <xs:attributeGroup ref="SupportedArchMod"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea LibraryClassDeclarations element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="IndustryStandardIncludes">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section is used to list header files for industry
                            standards not under the auspices of UEFI.org. For example, headers that contain definitions
                            and data structures for the USB specifications. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="IndustryStandardHeader">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="HeaderFile" type="xs:anyURI">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> The package relative path and
                                                    filename (in the content zip file) of the industry standard include
                                                    file. </xs:documentation>
                                            </xs:annotation>
                                        </xs:element>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea IndustryStdIncludes element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="PackageIncludes">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> All top level header files that are included by a package
                            that are not listed above. They cannot be:</xs:documentation>
                        <xs:documentation xml:lang="en-us"> 1) Local to a module (module specific.) </xs:documentation>
                        <xs:documentation xml:lang="en-us"> 2) An industry standard header. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> 3) A library class header. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="PackageHeader">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="HeaderFile">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> This is the Package relative path
                                                    and filename location within the content ZIP file.
                                                </xs:documentation>
                                            </xs:annotation>
                                            <xs:complexType>
                                                <xs:simpleContent>
                                                    <xs:extension base="xs:anyURI">
                                                        <xs:attributeGroup ref="SupportedArchMod"/>
                                                    </xs:extension>
                                                </xs:simpleContent>
                                            </xs:complexType>
                                        </xs:element>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea PackageIncluces element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="Modules">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element ref="ModuleSurfaceArea" minOccurs="1" maxOccurs="unbounded">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This section lists the Module Surface Area for
                                        all modules provided with this package. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea Modules element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="GuidDeclarations">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section defines the mapping of GUID C names to GUID
                            values as a Registry Format GUID. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Modules that use these GUIDs must specify their dependency
                            on this package. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Entry">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> Individual GUID Declarations </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="1" maxOccurs="1" name="GuidValue"
                                            type="RegistryFormatGuid"/>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="UiName" type="xs:normalizedString" use="optional"/>
                                    <xs:attribute name="GuidTypes" type="GuidListType" use="optional"/>
                                    <xs:attributeGroup ref="SupportedArchMod"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea GuidDeclarations element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="ProtocolDeclarations">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section defines the mapping of Protocol C names to GUID
                            values as a Registry Format GUID. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Modules that use these Protocols must specify their
                            dependency on this package. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Entry">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> Individual Protocol Declarations
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="1" maxOccurs="1" name="GuidValue"
                                            type="RegistryFormatGuid"/>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="UiName" type="xs:normalizedString" use="optional"/>
                                    <xs:attributeGroup ref="SupportedArchMod"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea ProtocolDeclarations element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="PpiDeclarations">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section defines the mapping of Ppi C names to GUID
                            values as a Registry Format GUID. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Modules that use these Ppis must specify their dependency on
                            this package. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Entry">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> Individual PPI Declarations </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="1" maxOccurs="1" name="GuidValue"
                                            type="RegistryFormatGuid"/>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="UiName" type="xs:normalizedString" use="optional"/>
                                    <xs:attributeGroup ref="SupportedArchMod"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea PpiDeclarations element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="PcdDeclarations">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section is used to declare platform configuration knobs
                            that are defined by this package. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> Modules that use these PCD values must specify their
                            dependency on this package. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="PcdEntry">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="TokenSpaceGuidCname"
                                            type="xs:NCName">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> Specifies the C name of the Token
                                                    Space GUID of which this PCD Entry is a member. This C name should
                                                    also be listed in the GUIDs section, (specified above,) where the C
                                                    name is assigned to a GUID value. </xs:documentation>
                                            </xs:annotation>
                                        </xs:element>
                                        <xs:element minOccurs="1" maxOccurs="1" name="Token">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> Specifies the 32-bit token value for
                                                    this PCD Entry. The Token number must be unique to the Token Space
                                                    that declares the PCD. </xs:documentation>
                                                <xs:documentation xml:lang="en-us"> The minLength of 3 is required to
                                                    handle the "0x" prefix to the hex number. </xs:documentation>
                                            </xs:annotation>
                                            <xs:simpleType>
                                                <xs:restriction base="HexNumber">
                                                    <xs:minLength value="3"/>
                                                    <xs:maxLength value="10"/>
                                                </xs:restriction>
                                            </xs:simpleType>
                                        </xs:element>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="1" maxOccurs="1" name="DatumType" type="PcdDatumTypes">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> A string that contains the data type
                                                    of this PCD Entry. PCD data types are restricted to the following
                                                    set:UINT8, UINT16, UINT32, UINT64, VOID*, BOOLEAN.
                                                </xs:documentation>
                                            </xs:annotation>
                                        </xs:element>
                                        <xs:element minOccurs="1" maxOccurs="1" name="ValidUsage" type="PcdItemListType">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> A string that contains one or more
                                                    PCD Item types separated by spaces. The PCD Item types are
                                                    restricted to FeaturePcd, FixedPcd, PatchPcd, Pcd and/or PcdEx.
                                                </xs:documentation>
                                            </xs:annotation>
                                        </xs:element>
                                        <xs:element minOccurs="1" maxOccurs="1" name="DefaultValue"
                                            type="xs:normalizedString"/>
                                        <xs:element minOccurs="0" maxOccurs="1" name="MaxDatumSize">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> This is a recommended maximum data
                                                    size for VOID* data types, the actual value should be defined by the
                                                    Platform Integrator. It is not required for the other data types. </xs:documentation>
                                                <xs:documentation xml:lang="en-us"> The minLength of 3 is required to
                                                    handle the "0x" prefix to the hex number. </xs:documentation>

                                            </xs:annotation>
                                            <xs:simpleType>
                                                <xs:restriction base="HexNumber">
                                                    <xs:minLength value="3"/>
                                                </xs:restriction>
                                            </xs:simpleType>
                                        </xs:element>
                                        <xs:element minOccurs="0" maxOccurs="unbounded" name="Prompt">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-US"> This entry contains prompt
                                                    information, that may used by tools to assist platform integrators
                                                    with choosing the correct values </xs:documentation>
                                            </xs:annotation>
                                            <xs:complexType>
                                                <xs:simpleContent>
                                                    <xs:extension base="xs:string">
                                                        <xs:attribute name="Lang" type="xs:language" default="en-us"
                                                            use="optional"/>
                                                    </xs:extension>
                                                </xs:simpleContent>
                                            </xs:complexType>
                                        </xs:element>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>

                                        <xs:element minOccurs="0" maxOccurs="unbounded" name="PcdError">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> Valid Error messages that may be
                                                    implemented in a module for the PCD Entry. Only One Error Number per
                                                    PcdError, (multiple ErrorMessage entries are permitted) and multiple
                                                    PcdError elements are permitted. </xs:documentation>
                                            </xs:annotation>
                                            <xs:complexType>
                                                <xs:sequence>
                                                    <xs:choice minOccurs="1" maxOccurs="1">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> One of the following
                                                            types of comparisons, which must be able to evaluate to
                                                            either true or false. </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:element minOccurs="0" maxOccurs="1" name="ValidValueList">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The PCD Value must be
                                                            space separated list of values. Values are restricted to the
                                                            data type of this PCD. </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:complexType>
                                                            <xs:simpleContent>
                                                            <xs:extension base="xs:normalizedString">
                                                            <xs:attribute name="Lang" type="xs:language" use="optional"
                                                            />
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                            </xs:complexType>
                                                        </xs:element>
                                                        <xs:element minOccurs="0" maxOccurs="1" name="ValidValueRange"
                                                            type="xs:normalizedString">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The PCD must be within a
                                                            specifed range of numeric values. Restricted to C style
                                                            Relational, Equality and Logicial Operators and parenthesis
                                                            are valid. Only the CName for this PCD is permitted in the
                                                            ValidValueRange expression. All other values must be
                                                            numeric.</xs:documentation>
                                                            <xs:documentation xml:lang="en-us"> LValue (op RValue)+
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                        </xs:element>
                                                        <xs:element minOccurs="0" maxOccurs="1" name="Expression"
                                                            type="xs:normalizedString">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> A in-fix logical
                                                            expression using C style logical operators.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                        </xs:element>
                                                    </xs:choice>
                                                    <xs:element minOccurs="1" maxOccurs="1" name="ErrorNumber">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> A hexadecimal value for
                                                            the error message as defined by specifications. </xs:documentation>
                                                            <xs:documentation xml:lang="en-us"> The minLength of 3 is
                                                            required to handle the "0x" prefix to the hex number. </xs:documentation>

                                                        </xs:annotation>
                                                        <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            </xs:restriction>
                                                        </xs:simpleType>
                                                    </xs:element>
                                                    <xs:element minOccurs="1" maxOccurs="unbounded" name="ErrorMessage">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This string should be
                                                            defined by specifications. There are pre-defined error
                                                            number ranges in the UEFI/PI specificaiton.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:complexType>
                                                            <xs:simpleContent>
                                                            <xs:extension base="xs:string">
                                                            <xs:attribute name="Lang" type="xs:language" default="en-us"
                                                            use="optional"/>
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                        </xs:complexType>
                                                    </xs:element>
                                                </xs:sequence>
                                            </xs:complexType>
                                        </xs:element>
                                    </xs:sequence>
                                    <xs:attributeGroup ref="SupportedArchMod"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea PcdDeclarations element.  -->

                <xs:element minOccurs="0" maxOccurs="1" name="PcdRelationshipChecks">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section is used to describe any PCD interdependencies
                            or relationships. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="PcdCheck" type="xs:normalizedString">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This entry must used
                                        TokenSpaceGuidCName.PcdCname for every named PCD. Restricted to Relational,
                                        Equality and Logical Operators (NOT, AND, OR, GT, GE, EQ, LE, LT and XOR) and
                                        parenthesis are valid. Only the TokenSpaceGuidCName.PcdCname us permitted to
                                        name PCDs in the expression. All other values must be numeric. </xs:documentation>
                                    <xs:documentation xml:lang="en-us"> LValue (op RValue)+ </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>

                <xs:element minOccurs="0" maxOccurs="unbounded" name="MiscellaneousFiles">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section contains files that are not part of the code
                            distributed with this package. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="0" maxOccurs="1" name="Copyright" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> Only required if different from the Package
                                        Copyright. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="License" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> Only required if different from the Package
                                        License. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="Abstract" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> A one line description of this section's
                                        content. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Description" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> A complete description of the files in this
                                        section. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Filename">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is the PackagePath relative path and
                                        filename location within the ZIP file. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:anyURI">
                                            <xs:attribute name="Executable" type="xs:boolean" default="false"
                                                use="optional">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> If true, used by installation
                                                        tools to ensure that a file that must be executable has the
                                                        correct properties to permit execution. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>

                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea Misc element.  -->

                <xs:element minOccurs="0" maxOccurs="unbounded" name="UserExtensions">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section is used for any processing instructions that
                            may be custom to the content provided by this package that are common to this package.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType mixed="true">
                        <xs:sequence>
                            <xs:any processContents="lax" minOccurs="0" maxOccurs="1"/>
                        </xs:sequence>
                        <xs:attribute name="UserId" type="xs:NCName" use="required">
                            <xs:annotation>
                                <xs:documentation xml:lang="en-us"> This is a single word identifier for grouping
                                    similar content that does not fit into previously defined sections or other sections
                                    of the Distribution. </xs:documentation>
                            </xs:annotation>
                        </xs:attribute>
                        <xs:attribute name="Identifier" type="xs:string" use="required">
                            <xs:annotation>
                                <xs:documentation xml:lang="en-us"> This can be used to differentiate multiple sections
                                    with a grouping. </xs:documentation>
                                <xs:documentation xml:lang="en-us"> For example, a PRE_PROCESS Identifier might indicate
                                    specific steps and tools required before processing module content, while a
                                    different UserExtensions section with a POST_PROCESS Identifier might describe steps
                                    that need to be executed after operations on the modules in this package.
                                </xs:documentation>
                            </xs:annotation>
                        </xs:attribute>
                        <xs:anyAttribute processContents="lax"/>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageSurfaceArea UserExtensions element. -->

            </xs:sequence>
        </xs:complexType>
    </xs:element>
    <!-- End of the PackageSurfaceArea element. -->

    <xs:element name="ModuleSurfaceArea">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> Each module is uniquely identified by it's GUID and Version number.
                Backward compatible releases of a module need only change the version number, while non-backward
                compatible changes require the GUID to change (resetting the version number to 1.0 is optional.)
            </xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>

                <xs:element minOccurs="1" maxOccurs="1" name="Header">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="1" name="Name">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is the User Interface Name for this Module.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:normalizedString">
                                            <xs:attribute name="BaseName" type="xs:NMTOKEN" use="required">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> This is a single word BaseName
                                                        that will be used to create a module meta-data file. </xs:documentation>
                                                    <xs:documentation xml:lang="en-us"> This name should also be used to
                                                        create output file names and directories. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This GUID and the Version attribute uniquely
                                        identify a given Module. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="RegistryFormatGuid">
                                            <xs:attribute name="Version" type="xs:decimal" use="required">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> This value, along with the GUID,
                                                        is used to uniquely identify this object. </xs:documentation>
                                                    <xs:documentation xml:lang="en-us"> Backward compatible changes must
                                                        make sure this number is incremented from the most recent
                                                        version. Non-backward compatible changes require a new GUID, and
                                                        the version can be reset. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Copyright">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the Copyright is
                                        different from either the Package or Distribution copyright. Multiple copyright
                                        lines are permitted within this section. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="License">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the license is
                                        different from either the Package or Distribution license. Multiple licenses are
                                        permitted within this section. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Abstract">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> A brief text description of the module.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:normalizedString">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Description">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> A complete description of the module contents
                                        and/or features including a description of the updates since the previous module
                                        release. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of Module Surface Area Header Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="ModuleProperties">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> List general information about a module, including the
                            Supported Architectures, this module's type, specifications the module is coded against, and
                            other informational content. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="1" name="ModuleType" type="ModuleTypes">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> One of the Enumerated module types that limit
                                        the use of a module. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="1" maxOccurs="1" name="Path" type="xs:anyURI">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> For stand-alone modules that are NOT part of any
                                        package, this is the path to the root of the module as listed in the ZIP file.
                                        For modules included in a package, this is the location, relative to the root of
                                        the package (PackagePath) this module belongs to. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="PcdIsDriver">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This element is only required for the PEIM that
                                        produces the PCD PPI or the DXE Driver that produces the PCD Protocol.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:simpleType>
                                    <xs:restriction base="xs:NCName">
                                        <xs:enumeration value="PEI_PCD_DRIVER"/>
                                        <xs:enumeration value="DXE_PCD_DRIVER"/>
                                    </xs:restriction>
                                </xs:simpleType>
                            </xs:element>

                            <xs:element minOccurs="0" maxOccurs="1" name="UefiSpecificationVersion" type="xs:decimal"/>

                            <xs:element minOccurs="0" maxOccurs="1" name="PiSpecificationVersion" type="xs:decimal"/>

                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Specification">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is a list of other specifications that this
                                        module is written against. These entries can be used in #define statements
                                        (depending on the build system implementation, they may be autogenerated.)
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:NCName">
                                            <xs:attribute name="Version" type="xs:decimal" use="required"/>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>

                            <xs:element minOccurs="0" maxOccurs="unbounded" name="BootMode">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> Different firmware execution paths may be taken
                                        based on a given state of the hardware, firmware, or through feature settings. A
                                        BootMode may be declared (PRODUCES) or discovered (CONSUMES) based on these
                                        states and feature settings. If the usage is UNDEFINE, it implies that a Boot
                                        Mode is used, but the package creator does not know how it is used. The
                                        supported boot modes map to the PI specification Boot Modes. The boot modes
                                        listed with Recovery are to indicate that the BootMode is valid during a
                                        recovery boot. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:sequence minOccurs="0">
                                        <xs:element minOccurs="1" maxOccurs="1" name="SupportedBootModes">
                                            <xs:simpleType>
                                                <xs:list>
                                                    <xs:simpleType>
                                                        <xs:restriction base="xs:NCName">
                                                            <xs:enumeration value="FULL"/>
                                                            <xs:enumeration value="MINIMAL"/>
                                                            <xs:enumeration value="NO_CHANGE"/>
                                                            <xs:enumeration value="DIAGNOSTICS"/>
                                                            <xs:enumeration value="DEFAULT"/>
                                                            <xs:enumeration value="S2_RESUME"/>
                                                            <xs:enumeration value="S3_RESUME"/>
                                                            <xs:enumeration value="S4_RESUME"/>
                                                            <xs:enumeration value="S5_RESUME"/>
                                                            <xs:enumeration value="FLASH_UPDATE"/>
                                                            <xs:enumeration value="RECOVERY_FULL"/>
                                                            <xs:enumeration value="RECOVERY_MINIMAL"/>
                                                            <xs:enumeration value="RECOVERY_NO_CHANGE"/>
                                                            <xs:enumeration value="RECOVERY_DIAGNOSTICS"/>
                                                            <xs:enumeration value="RECOVERY_DEFAULT"/>
                                                            <xs:enumeration value="RECOVERY_S2_RESUME"/>
                                                            <xs:enumeration value="RECOVERY_S3_RESUME"/>
                                                            <xs:enumeration value="RECOVERY_S4_RESUME"/>
                                                            <xs:enumeration value="RECOVERY_S5_RESUME"/>
                                                            <xs:enumeration value="RECOVERY_FLASH_UPDATE"/>
                                                            <xs:enumeration value="UNDEFINED"/>
                                                        </xs:restriction>
                                                    </xs:simpleType>
                                                </xs:list>
                                            </xs:simpleType>
                                        </xs:element>

                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="Usage" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module always supports
                                                            the given boot modes. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIMES_CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module may support a
                                                            given mode on some execution paths. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module will change the
                                                            boot mode. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIME_PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module will change the
                                                            boot mode on some exection paths. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="UNDEFINED">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The package creator does not
                                                            know how the boot mode is used. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>

                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Event" nillable="true">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> The functions that make up the Event, Timer, and
                                        Task Priority Services are used during preboot to create, close, signal, and
                                        wait for events; to set timers; and to raise and restore task priority levels as
                                        defined in the UEFI specification. GUIDed events should be listed in the Guids
                                        section. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="Usage" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module will register a
                                                            notification function and calls the function when it is
                                                            signaled. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIMES_CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module will register a
                                                            notification function and calls the function when it is
                                                            signaled on some execution paths. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module will signal all
                                                            events in an event group. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIMES_PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module will signal all
                                                            events in an event group under some execution paths.
                                                        </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="UNDEFINED">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The package creator does not
                                                            know how an event is used. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>
                                    <xs:attribute name="EventType" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="EVENT_TYPE_PERIODIC_TIMER"/>
                                                <xs:enumeration value="EVENT_TYPE_RELATIVE_TIMER"/>
                                                <xs:enumeration value="UNDEFINED"/>
                                            </xs:restriction>
                                        </xs:simpleType>


                                    </xs:attribute>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>

                            <xs:element minOccurs="0" maxOccurs="unbounded" name="HOB" nillable="false">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is a list of non-GUIDed Hand Off Blocks
                                        (HOBs) produced or consumed by this module. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="HobType" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="PHIT"/>
                                                <xs:enumeration value="MEMORY_ALLOCATION"/>
                                                <xs:enumeration value="RESOURCE_DESCRIPTOR"/>
                                                <xs:enumeration value="FIRMWARE_VOLUME"/>
                                                <xs:enumeration value="LOAD_PEIM"/>
                                                <xs:enumeration value="UNDEFINED"/>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>
                                    <xs:attribute name="Usage" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> A HOB must be present in the
                                                            system. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIMES_CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> If present, the HOB will be
                                                            used. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The HOB is always produced
                                                            by the module. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIMES_PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The HOB may be produced by
                                                            the module under some execution paths. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="UNDEFINED">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The package creator knows
                                                            that a HOB is used, but does not know how it is used.
                                                        </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>

                        </xs:sequence>
                        <xs:attributeGroup ref="SupportedArchMod"/>
                    </xs:complexType>
                </xs:element>
                <!-- End of ModuleProperties Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="ClonedFrom">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section may be included for Modules that are copied
                            from a different module. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This GUID and the Version attribute uniquely
                                        identify the Module that this Module was copied from. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="RegistryFormatGuid">
                                            <xs:attribute name="Version" type="xs:decimal" use="required">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> This value, along with the GUID,
                                                        is used to uniquely identify this object. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!--  End of ClonedFrom Section. -->

                <xs:element minOccurs="0" maxOccurs="1" name="LibraryClassDefinitions">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> A list of the different Library Classes consumed by a
                            driver, core and/or application module, or produced by a Library module. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="LibraryClass">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="Keyword" type="xs:NCName">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us "> Used by tools to identify different
                                                    instances of libraries that provide the library class. This keyword
                                                    identifies the library class this module needs to be linked against.
                                                </xs:documentation>
                                            </xs:annotation>
                                        </xs:element>
                                        <xs:element minOccurs="0" maxOccurs="1" name="RecommendedInstance">
                                            <xs:complexType>
                                                <xs:all>
                                                    <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This GUID and the
                                                            Version attribute uniquely identify the recommended Library
                                                            Instance for this module . </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:complexType>
                                                            <xs:simpleContent>
                                                            <xs:extension base="RegistryFormatGuid">
                                                            <xs:attribute name="Version" type="xs:decimal"
                                                            use="optional">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This value, along with
                                                            the GUID, is used to uniquely identify this object.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            </xs:attribute>
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                        </xs:complexType>
                                                    </xs:element>
                                                </xs:all>
                                            </xs:complexType>
                                        </xs:element>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="Usage" use="required">
                                        <xs:simpleType>
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> Library instances can provide code
                                                    for a library class, or may require other library instances
                                                    themselves. Since different execution paths in a library (or module)
                                                    may need different library classes based on some setting, library
                                                    classes may not alway be required. </xs:documentation>
                                            </xs:annotation>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="PRODUCES"/>
                                                <xs:enumeration value="CONSUMES"/>
                                                <xs:enumeration value="SOMETIMES_CONSUMES"/>
                                                <xs:enumeration value="UNDEFINED"/>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>

                                    <xs:attributeGroup ref="SupportedArchMod"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional">
                                        <xs:annotation>
                                            <xs:documentation xml:lang="en-us"> A FeatureFlag attribute must evaluate to
                                                either true or false - it may be a fixed value of true or false, a C
                                                name or an in-fix expression. </xs:documentation>
                                        </xs:annotation>
                                    </xs:attribute>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of LibraryClassDefinitions Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="SourceFiles">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Filename">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is the module relative
                                        (ModuleProperties.Path) path and filename location within the ZIP file.
                                    </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:anyURI">
                                            <xs:attribute name="Family" type="FamilyTypes" use="optional">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> The Family attribute is used to
                                                        restrict usage to a given family of compilers, such as GCC or
                                                        MSFT. Since not all code processing tools use the same syntax,
                                                        especially for assembly, this field can be used to identify
                                                        different syntax. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                            <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                            <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                                            <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of SourceFiles Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="BinaryFiles">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="BinaryFile">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="unbounded" name="Filename">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> This is the module relative
                                                    (ModuleProperties.Path) path and filename location within the ZIP
                                                    file. </xs:documentation>
                                            </xs:annotation>
                                            <xs:complexType>
                                                <xs:simpleContent>
                                                    <xs:extension base="xs:anyURI">
                                                        <xs:attribute name="FileType" use="optional">
                                                            <xs:simpleType>
                                                            <xs:restriction base="xs:NCName">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> Binary file distribution
                                                            is limited to UEFI/PI FFS leaf section file types.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:enumeration value="GUID"/>
                                                            <xs:enumeration value="FREEFORM"/>
                                                            <xs:enumeration value="UEFI_IMAGE"/>
                                                            <xs:enumeration value="PE32">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> A UEFI/PI FFS Leaf
                                                            section file type, not a raw PE32 file. </xs:documentation>
                                                            </xs:annotation>
                                                            </xs:enumeration>
                                                            <xs:enumeration value="PIC"/>
                                                            <xs:enumeration value="PEI_DEPEX"/>
                                                            <xs:enumeration value="DXE_DEPEX"/>
                                                            <xs:enumeration value="SMM_DEPEX"/>
                                                            <xs:enumeration value="COMPAT16"/>
                                                            <xs:enumeration value="DISPOSABLE"/>
                                                            <xs:enumeration value="TE"/>
                                                            <xs:enumeration value="VER"/>
                                                            <xs:enumeration value="UI"/>
                                                            <xs:enumeration value="BIN"/>
                                                            <xs:enumeration value="FV"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                        </xs:attribute>
                                                        <xs:attribute name="GUID" use="optional"
                                                            type="RegistryFormatGuid"/>
                                                        <xs:attribute name="SupArchList" type="ArchListType"
                                                            use="optional"/>
                                                        <xs:attribute name="SupModList" type="ModuleListType"
                                                            use="optional"/>
                                                        <xs:attribute name="FeatureFlag" type="xs:normalizedString"
                                                            use="optional"/>
                                                    </xs:extension>
                                                </xs:simpleContent>
                                            </xs:complexType>
                                        </xs:element>
                                        <xs:element minOccurs="0" maxOccurs="unbounded" name="AsBuilt">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> This section contains information
                                                    about how the module was coded, such as Compiler Tools, Flags, PCDs
                                                    (only PatchPcd and/or PcdEx) and Library Class Instances used to
                                                    build the binary. </xs:documentation>
                                            </xs:annotation>
                                            <xs:complexType>
                                                <xs:sequence>

                                                    <xs:element minOccurs="0" maxOccurs="unbounded" name="PatchPcdValue">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The element is the
                                                            Patchable PCD Value that was used during the build.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:complexType>
                                                            <xs:sequence>
                                                            <xs:element minOccurs="1" maxOccurs="1"
                                                            name="TokenSpaceGuidValue" type="RegistryFormatGuid"/>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="PcdCName"
                                                            type="xs:NCName"/>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="Token">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The minLength of 3 is
                                                            required to handle the "0x" prefix to the hex number.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            <xs:maxLength value="10"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                            </xs:element>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="DatumType" 
                                                            type="PcdDatumTypes"/>
                                                            <xs:element minOccurs="0" maxOccurs="1" name="MaxDatumSize">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This field is required
                                                            if the Pcd Datum Type is VOID* </xs:documentation>
                                                            <xs:documentation xml:lang="en-us"> The minLength of 3 is
                                                            required to handle the "0x" prefix to the hex number.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                            </xs:element>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="Value"
                                                            type="xs:normalizedString"/>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="Offset">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The minLength of 3 is
                                                            required to handle the "0x" prefix to the hex number.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                            </xs:element>
                                                            <xs:element ref="HelpText" minOccurs="0"
                                                            maxOccurs="unbounded"/>
                                                            <xs:element minOccurs="0" maxOccurs="unbounded"
                                                            name="PcdError">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> Error information
                                                            implemented by the module. </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:complexType>
                                                            <xs:sequence>
                                                            <xs:choice>
                                                              <xs:element minOccurs="0" maxOccurs="1" name="ValidValueList">
                                                                <xs:complexType>
                                                                  <xs:simpleContent>
                                                                    <xs:extension base="xs:normalizedString">
                                                                    <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                                                                    </xs:extension>
                                                                  </xs:simpleContent>
                                                                </xs:complexType>
                                                              </xs:element>
                                                              <xs:element minOccurs="0" maxOccurs="1" name="ValidValueRange" type="xs:normalizedString"/>
                                                              <xs:element minOccurs="0" maxOccurs="1" name="Expression" type="xs:normalizedString"/>
                                                            </xs:choice>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="ErrorNumber">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The minLength of 3 is
                                                            required to handle the "0x" prefix to the hex number.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                            </xs:element>
                                                            <xs:element minOccurs="0" maxOccurs="unbounded"
                                                            name="ErrorMessage">
                                                            <xs:complexType>
                                                            <xs:simpleContent>
                                                            <xs:extension base="xs:string">
                                                            <xs:attribute name="Lang" type="xs:language" default="en-us"
                                                            use="optional"/>
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                            </xs:complexType>
                                                            </xs:element>
                                                            </xs:sequence>
                                                            </xs:complexType>
                                                            </xs:element>
                                                            </xs:sequence>
                                                        </xs:complexType>
                                                    </xs:element>

                                                    <xs:element minOccurs="0" maxOccurs="unbounded" name="PcdExValue">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The element is the
                                                            DynamicEx PCD Value that was used during the build.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:complexType>
                                                            <xs:sequence>
                                                            <xs:element minOccurs="1" maxOccurs="1"
                                                            name="TokenSpaceGuidValue" type="RegistryFormatGuid"/>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="Token">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The minLength of 3 is
                                                            required to handle the "0x" prefix to the hex number.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            <xs:maxLength value="10"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                            </xs:element>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="DatumType"
                                                            type="PcdDatumTypes"/>
                                                            <xs:element minOccurs="0" maxOccurs="1" name="MaxDatumSize">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This field is required
                                                            if the Pcd Datum Type is VOID* </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                            </xs:element>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="Value"
                                                            type="xs:normalizedString"/>
                                                            <xs:element ref="HelpText" minOccurs="0"
                                                            maxOccurs="unbounded"/>
                                                            <xs:element minOccurs="0" maxOccurs="unbounded"
                                                            name="PcdError">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> Error information
                                                            implemented by the module. </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:complexType>
                                                            <xs:sequence>
                                                            <xs:choice>
                                                              <xs:element minOccurs="0" maxOccurs="1" name="ValidValueList">
                                                                <xs:complexType>
                                                                  <xs:simpleContent>
                                                                    <xs:extension base="xs:normalizedString">
                                                                    <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                                                                      </xs:extension>
                                                                  </xs:simpleContent>
                                                                </xs:complexType>
                                                              </xs:element>
                                                              <xs:element minOccurs="0" maxOccurs="1" name="ValidValueRange" type="xs:normalizedString"/>
                                                              <xs:element minOccurs="0" maxOccurs="1" name="Expression" type="xs:normalizedString"/>
                                                            </xs:choice>
                                                            <xs:element minOccurs="1" maxOccurs="1" name="ErrorNumber">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> The minLength of 3 is
                                                            required to handle the "0x" prefix to the hex number.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:simpleType>
                                                            <xs:restriction base="HexNumber">
                                                            <xs:minLength value="3"/>
                                                            </xs:restriction>
                                                            </xs:simpleType>
                                                            </xs:element>
                                                            <xs:element minOccurs="0" maxOccurs="unbounded"
                                                            name="ErrorMessage">
                                                            <xs:complexType>
                                                            <xs:simpleContent>
                                                            <xs:extension base="xs:string">
                                                            <xs:attribute name="Lang" type="xs:language" default="en-us"
                                                            use="optional"/>
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                            </xs:complexType>
                                                            </xs:element>
                                                            </xs:sequence>
                                                            </xs:complexType>
                                                            </xs:element>
                                                            </xs:sequence>
                                                        </xs:complexType>
                                                    </xs:element>

                                                    <xs:element minOccurs="0" maxOccurs="1" name="LibraryInstances">
                                                        <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This is the actual
                                                            library instance that was used to link against the module.
                                                            </xs:documentation>
                                                        </xs:annotation>
                                                        <xs:complexType>
                                                            <xs:sequence>
                                                            <xs:element minOccurs="1" maxOccurs="unbounded" name="GUID">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This GUID and the
                                                            Version attribute uniquely identify the actual Library
                                                            Instance linked in this module. </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:complexType>
                                                            <xs:simpleContent>
                                                            <xs:extension base="RegistryFormatGuid">
                                                            <xs:attribute name="Version" type="xs:decimal"
                                                            use="required">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This value, along with
                                                            the GUID, is used to uniquely identify this object.
                                                            </xs:documentation>
                                                            </xs:annotation>
                                                            </xs:attribute>
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                            </xs:complexType>
                                                            </xs:element>
                                                            </xs:sequence>
                                                        </xs:complexType>
                                                    </xs:element>

                                                    <xs:element minOccurs="0" maxOccurs="unbounded" name="BuildFlags">
                                                        <xs:complexType mixed="true">
                                                            <xs:simpleContent>
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> Any description of OS,
                                                            Tool, and flags for the individual tool can go in this
                                                            section. </xs:documentation>
                                                            </xs:annotation>
                                                            <xs:extension base="xs:string">
                                                            <xs:anyAttribute processContents="lax"/>
                                                            </xs:extension>
                                                            </xs:simpleContent>
                                                        </xs:complexType>
                                                    </xs:element>
                                                </xs:sequence>
                                            </xs:complexType>
                                        </xs:element>
                                        <!-- End of AsBuilt -->
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                </xs:complexType>
                            </xs:element>

                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of BinaryFiles Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="PackageDependencies">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Package">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="0" maxOccurs="unbounded" name="Description">
                                            <xs:complexType>
                                                <xs:simpleContent>
                                                    <xs:extension base="xs:string">
                                                        <xs:attribute name="Lang" type="xs:language" default="en-us"
                                                            use="optional"/>
                                                    </xs:extension>
                                                </xs:simpleContent>
                                            </xs:complexType>
                                        </xs:element>
                                        <xs:element minOccurs="1" maxOccurs="1" name="GUID">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> This GUID and the Version attribute
                                                    uniquely identify Package that this Module depends on.
                                                </xs:documentation>
                                            </xs:annotation>
                                            <xs:complexType>
                                                <xs:simpleContent>
                                                    <xs:extension base="RegistryFormatGuid">
                                                        <xs:attribute name="Version" type="xs:decimal" use="optional">
                                                            <xs:annotation>
                                                            <xs:documentation xml:lang="en-us"> This value, along with
                                                            the GUID, is used to uniquely identify this object. If the
                                                            version attribute is not specified, the most recent version
                                                            of the package can be used. </xs:documentation>
                                                            </xs:annotation>
                                                        </xs:attribute>
                                                    </xs:extension>
                                                </xs:simpleContent>
                                            </xs:complexType>
                                        </xs:element>
                                    </xs:sequence>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PackageDependencies -->

                <xs:element minOccurs="0" maxOccurs="1" name="Guids">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="GuidCName">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="0" maxOccurs="1" name="GUID" type="RegistryFormatGuid"/>
                                        <xs:element minOccurs="0" maxOccurs="1" name="VariableName"
                                            type="xs:normalizedString">
                                            <xs:annotation>
                                                <xs:documentation xml:lang="en-us"> Only valid for Variable GUID types. </xs:documentation>
                                                <xs:documentation> This can be either a Hex Array or C string in unicode
                                                    format: L"string" Data. </xs:documentation>
                                            </xs:annotation>
                                        </xs:element>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="Usage" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us">The module does not install
                                                            the GUID, and the GUID must be present for the module to
                                                            execute. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIMES_CONSUMES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module does not install
                                                            the GUID, however, the GUID will be used if it is present.
                                                        </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The module always installs
                                                            the GUID. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="SOMETIMES_PRODUCES">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The Module will install the
                                                            GUID under certain execution paths. </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                                <xs:enumeration value="UNDEFINED">
                                                    <xs:annotation>
                                                        <xs:documentation xml:lang="en-us"> The package creator knows
                                                            that a GUID is used, but does not know how it is used.
                                                        </xs:documentation>
                                                    </xs:annotation>
                                                </xs:enumeration>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>
                                    <xs:attribute name="GuidType" type="GuidListType" use="required"/>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of Guids Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="Protocols">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> A listing of protocols required or produced by this module.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Protocol" nillable="true">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="0" maxOccurs="1" name="GUID" type="RegistryFormatGuid"/>                                       
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="Usage" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="PRODUCES"/>
                                                <xs:enumeration value="SOMETIMES_PRODUCES"/>
                                                <xs:enumeration value="CONSUMES"/>
                                                <xs:enumeration value="SOMETIMES_CONSUMES"/>
                                                <xs:enumeration value="TO_START"/>
                                                <xs:enumeration value="BY_START"/>
                                                <xs:enumeration value="UNDEFINED"/>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>
                                    <xs:attribute name="Notify" type="xs:boolean" use="optional"/>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of Protocols Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="PPIs">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> A listing of PPIs required or produced by this module.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Ppi" nillable="true">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="0" maxOccurs="1" name="GUID" type="RegistryFormatGuid"/>                                        
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="Usage" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="PRODUCES"/>
                                                <xs:enumeration value="SOMETIMES_PRODUCES"/>
                                                <xs:enumeration value="CONSUMES"/>
                                                <xs:enumeration value="SOMETIMES_CONSUMES"/>
                                                <xs:enumeration value="UNDEFINED"/>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:attribute>
                                    <xs:attribute name="Notify" type="xs:boolean" use="optional"/>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PPIs Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="Externs">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> These elements specify additional information about the
                            module. This area may be used by tools to generate code. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Extern">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:choice minOccurs="1">
                                            <xs:sequence>
                                                <xs:element minOccurs="0" maxOccurs="1" name="EntryPoint"
                                                    type="xs:NCName"/>
                                                <xs:element minOccurs="0" maxOccurs="1" name="UnloadImage"
                                                    type="xs:NCName"/>
                                            </xs:sequence>
                                            <xs:sequence>
                                                <xs:element minOccurs="0" maxOccurs="1" name="Constructor"
                                                    type="xs:NCName"/>
                                                <xs:element minOccurs="0" maxOccurs="1" name="Destructor"
                                                    type="xs:NCName"/>
                                            </xs:sequence>
                                        </xs:choice>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="1"/>
                                    </xs:sequence>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of Externs Section -->

                <xs:element minOccurs="0" maxOccurs="1" name="PcdCoded">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section describes how a platform is coded with respect
                            to the platform configuration knobs. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="PcdEntry">
                                <xs:complexType>
                                    <xs:sequence>
                                        <xs:element minOccurs="1" maxOccurs="1" name="CName" type="xs:NCName"/>
                                        <xs:element minOccurs="1" maxOccurs="1" name="TokenSpaceGuidCName"
                                            type="xs:NCName"/>
                                        <xs:element minOccurs="0" maxOccurs="1" name="DefaultValue"
                                            type="xs:normalizedString"/>
                                        <xs:element ref="HelpText" minOccurs="0" maxOccurs="unbounded"/>
                                    </xs:sequence>
                                    <xs:attribute name="PcdItemType" type="PcdItemTypes" use="required"/>
                                    <xs:attribute name="PcdUsage" use="required">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:NCName">
                                                <xs:enumeration value="PRODUCES"/>
                                                <xs:enumeration value="SOMETIMES_PRODUCES"/>
                                                <xs:enumeration value="CONSUMES"/>
                                                <xs:enumeration value="SOMETIMES_CONSUMES"/>
                                                <xs:enumeration value="UNDEFINED"/>
                                            </xs:restriction>
                                        </xs:simpleType>


                                    </xs:attribute>
                                    <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                                    <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                                    <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of PcdCoded Section -->

                <xs:element minOccurs="0" maxOccurs="unbounded" name="PeiDepex">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This is the PEI dependency expression for a Dependency
                            Section. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="Expression" type="xs:string" minOccurs="1" maxOccurs="1">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> An in-fix expression, of C identifiers and TRUE,
                                        FALSE, AND, OR, NOT, BEFORE, and AFTER as well as parenthesis () in the in-fix
                                        notation. The operators are restricted to grammar defined in the PI
                                        specification. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element ref="HelpText" minOccurs="0" maxOccurs="1"/>
                        </xs:sequence>
                        <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                        <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                        <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                    </xs:complexType>
                </xs:element>
                <!-- End of PeiDepex Section -->

                <xs:element minOccurs="0" maxOccurs="unbounded" name="DxeDepex">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This is the DXE dependency expression for a Dependency
                            Section. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="Expression" type=" xs:string " minOccurs="1" maxOccurs="1">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> An in-fix expression, of C identifiers and TRUE,
                                        FALSE, AND, OR, NOT, BEFORE, and AFTER as well as parenthesis () in the in-fix
                                        notation. The operators are restricted to grammar defined in the PI
                                        specification. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element ref="HelpText" minOccurs="0" maxOccurs="1"/>
                        </xs:sequence>
                        <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                        <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                        <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                    </xs:complexType>
                </xs:element>
                <!-- End of DxeDepex Section -->

                <xs:element minOccurs="0" maxOccurs="unbounded" name="SmmDepex">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This is the SMM dependency expression for a Dependency
                            Section. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element name="Expression" type=" xs:string " minOccurs="1" maxOccurs="1">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> An in-fix expression, of C identifiers and TRUE,
                                        FALSE, AND, OR, NOT, BEFORE, and AFTER as well as parenthesis () in the in-fix
                                        notation. The operators are restricted to grammar defined in the PI
                                        specification. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element ref="HelpText" minOccurs="0" maxOccurs="1"/>
                        </xs:sequence>
                        <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
                        <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
                        <xs:attribute name="FeatureFlag" type="xs:normalizedString" use="optional"/>
                    </xs:complexType>
                </xs:element>
                <!-- End of SmmDepex Section -->


                <xs:element minOccurs="0" maxOccurs="1" name="MiscellaneousFiles">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section is used to provide comments and/or list
                            auxiliary files, such as pdb or map files. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Description">
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="1" maxOccurs="unbounded" name="Filename">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is the path and filename location within
                                        the ZIP file. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:anyURI">
                                            <xs:attribute name="Executable" type="xs:boolean" default="false"
                                                use="optional">
                                                <xs:annotation>
                                                    <xs:documentation xml:lang="en-us"> If true, used by installation
                                                        tools to ensure that a file that must be executable has the
                                                        correct properties to permit execution. </xs:documentation>
                                                </xs:annotation>
                                            </xs:attribute>
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <!-- End of Module Surface Area Misc Section -->

                <xs:element minOccurs="0" maxOccurs="unbounded" name="UserExtensions">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This section is used for any processing instructions that
                            may be custom to the content provided by the distribution that are common to module. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> The content is vendor specific. </xs:documentation>
                        <xs:documentation xml:lang="en-us"> The content can be plain text as well as any user-defined,
                            properly formatted XML structure. </xs:documentation>
                    </xs:annotation>
                    <xs:complexType mixed="true">
                        <xs:attribute name="UserId" type="xs:NCName" use="required">
                            <xs:annotation>
                                <xs:documentation xml:lang="en-us"> This is a single word identifier for grouping
                                    similar content. For example, ReferenceBuild might be used to identify non-PI
                                    compliant build steps, with two different UserExtensions sections, one with an
                                    Identifier of Prebuild, and another of PostBuild. Both UserExtensions sections would
                                    use the same UserId. </xs:documentation>
                            </xs:annotation>
                        </xs:attribute>
                        <xs:attribute name="Identifier" type="xs:string" use="required">
                            <xs:annotation>
                                <xs:documentation xml:lang="en-us"> This can be any string used to differentiate or
                                    identify this section from other UserExtensions sections. </xs:documentation>
                                <xs:documentation xml:lang="en-us"> For example, a PRE_PROCESS Identifier might indicate
                                    specific steps and tools required before processing module content, while a
                                    different UserExtensions section with a POST_PROCESS Identifier might describe steps
                                    that need to be executed after operations on this module. </xs:documentation>
                            </xs:annotation>
                        </xs:attribute>
                        <xs:anyAttribute processContents="lax"/>
                    </xs:complexType>
                </xs:element>
                <!-- End of Module Surface Area UserExtensions Section -->

            </xs:sequence>
            <xs:attribute name="BinaryModule" type="xs:boolean" default="false" use="optional">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This attribute is used when the binaries are distributed for
                        this module and no code generation from source files is required. If set, then the BinaryFiles
                        section should be used, and any files listed in the SourceFiles section do not have to be built.
                        Additionally, the AsBuilt section for each binary file must be included. </xs:documentation>
                </xs:annotation>
            </xs:attribute>
        </xs:complexType>

    </xs:element>
    <!-- End of the ModuleSurfaceArea element. -->

    <xs:element name="Tools">
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="0" maxOccurs="1" name="Header">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="1" maxOccurs="1" name="Name" type="xs:normalizedString">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us">This is the User Interface Name for this Tools
                                        Distribution.</xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="Copyright" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the Copyright is
                                        different from the Distribution Package copyright. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="License" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the License is
                                        different from the Distribution Package license. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="Abstract">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the Abstract is
                                        different from the Distribution Package Abstract. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:normalizedString">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                                        </xs:extension>                                        
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="Description">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the Description is
                                        different from the Distribution Package Description. </xs:documentation>
                                </xs:annotation>
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                                        </xs:extension>                                        
                                    </xs:simpleContent>
                                </xs:complexType>
                                
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <xs:element minOccurs="1" maxOccurs="unbounded" name="Filename">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This is the path and filename location within the ZIP file.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:anyURI">
                                <xs:attribute name="OS" type="SupportedOs" use="optional">
                                    <xs:annotation>
                                        <xs:documentation xml:lang="en-us"> This is required for tools that execute; it
                                            should not be used for configuration files. </xs:documentation>
                                    </xs:annotation>
                                </xs:attribute>
                                <xs:attribute name="Executable" type="xs:boolean" default="false" use="optional">
                                    <xs:annotation>
                                        <xs:documentation xml:lang="en-us"> If true, used by installation tools to
                                            ensure that a file that must be executable has the correct properties to
                                            permit execution. </xs:documentation>
                                    </xs:annotation>
                                </xs:attribute>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
    <!-- End of the Tools element. -->

    <xs:element name="MiscellaneousFiles">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> This section contains a list of files that are not part of the code
                distributed with modules, packages or tools. </xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>
                <xs:element minOccurs="0" maxOccurs="1" name="Header">
                    <xs:complexType>
                        <xs:sequence>
                            <xs:element minOccurs="0" maxOccurs="1" name="Name" type="xs:normalizedString">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> The User interface name for this content.
                                    </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="Copyright" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the Copyright is
                                        different from the Distribution Package Copyright. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="License" type="xs:string">
                                <xs:annotation>
                                    <xs:documentation xml:lang="en-us"> This is only required if the License is
                                        different from the Distribution Package License. </xs:documentation>
                                </xs:annotation>
                            </xs:element>
                            <xs:element minOccurs="0" maxOccurs="1" name="Abstract" type="xs:normalizedString"/>
                            <xs:element minOccurs="0" maxOccurs="unbounded" name="Description">
                                <xs:complexType>
                                    <xs:simpleContent>
                                        <xs:extension base="xs:string">
                                            <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"
                                            />
                                        </xs:extension>
                                    </xs:simpleContent>
                                </xs:complexType>
                            </xs:element>
                        </xs:sequence>
                    </xs:complexType>
                </xs:element>
                <xs:element minOccurs="0" maxOccurs="unbounded" name="Filename">
                    <xs:annotation>
                        <xs:documentation xml:lang="en-us"> This is the path and filename location within the ZIP file.
                        </xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                        <xs:simpleContent>
                            <xs:extension base="xs:anyURI">
                                <xs:attribute name="Executable" type="xs:boolean" default="false" use="optional">
                                    <xs:annotation>
                                        <xs:documentation xml:lang="en-us"> If true, used by installation tools to
                                            ensure that a file that must be executable has the correct properties to
                                            permit execution. </xs:documentation>
                                    </xs:annotation>
                                </xs:attribute>
                            </xs:extension>
                        </xs:simpleContent>
                    </xs:complexType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>
    <!-- End of the Misc element. -->

    <xs:element name="UserExtensions">
        <xs:complexType mixed="true">
            <xs:sequence>
                <xs:any processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
            </xs:sequence>
            <xs:attribute name="UserId" type="xs:NCName" use="required">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This is a single word identifier for grouping similar content.
                        For example, ReferenceBuild might be used to identify non-PI compliant build steps, with two
                        different UserExtensions sections, one with an Identifier of Prebuild, and another of PostBuild.
                        Both UserExtensions sections would use the same UserId. </xs:documentation>
                </xs:annotation>
            </xs:attribute>
            <xs:attribute name="Identifier" type="xs:string" use="optional">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This can be any string used to differentiate or identify this
                        section from other UserExtensions sections. </xs:documentation>
                    <xs:documentation xml:lang="en-us"> For example, a PRE_PROCESS Identifier might indicate specific
                        steps and tools required before processing distribution package content, while a different
                        UserExtensions section with a POST_PROCESS Identifier might describe steps that need to be
                        executed after operations on this content. </xs:documentation>
                </xs:annotation>
            </xs:attribute>
            <xs:anyAttribute processContents="lax"/>
        </xs:complexType>
    </xs:element>
    <!-- The following elsements are common definitions used with the ref attribute for elements. -->

    <xs:element name="HelpText">
        <xs:complexType>
            <xs:simpleContent>
                <xs:extension base="xs:string">
                    <xs:attribute name="Lang" type="xs:language" default="en-us" use="optional"/>
                </xs:extension>
            </xs:simpleContent>
        </xs:complexType>
    </xs:element>

    <!-- The following attribute groups are used in various elements above. -->

    <xs:attributeGroup name="SupportedArchMod">
        <xs:attribute name="SupArchList" type="ArchListType" use="optional"/>
        <xs:attribute name="SupModList" type="ModuleListType" use="optional"/>
    </xs:attributeGroup>

    <!-- The following data types are used to restrict content. -->

    <xs:simpleType name="ArchListType">
        <xs:list itemType="ArchTypes"/>
    </xs:simpleType>

    <xs:simpleType name="ArchTypes">
        <xs:restriction base="xs:NCName">
            <xs:enumeration value="IA32"/>
            <xs:enumeration value="X64"/>
            <xs:enumeration value="IPF"/>
            <xs:enumeration value="EBC"/>
            <xs:enumeration value="ARM"/>
            <xs:pattern value="([A-Z])([a-zA-Z0-9])*">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> Any processor architecture not listed above. The Architecture
                        must be a target architecture of one or more compiler tool chains. </xs:documentation>
                </xs:annotation>
            </xs:pattern>
        </xs:restriction>
    </xs:simpleType>


    <xs:simpleType name="FamilyTypes">
        <xs:restriction base="xs:NCName">
            <xs:enumeration value="MSFT"/>
            <xs:enumeration value="GCC"/>
            <xs:pattern value="[A-Z][a-zA-Z0-9]*">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> Any other family of build utilities for which compiler tools
                        exist. </xs:documentation>
                </xs:annotation>
            </xs:pattern>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="GuidListType">
        <xs:list itemType="GuidTypes"/>
    </xs:simpleType>

    <xs:simpleType name="GuidTypes">
        <xs:restriction base="xs:NCName">
            <xs:enumeration value="Event"/>
            <xs:enumeration value="File"/>
            <xs:enumeration value="FV"/>
            <xs:enumeration value="GUID"/>
            <xs:enumeration value="HII"/>
            <xs:enumeration value="Hii"/>
            <xs:enumeration value="HOB"/>
            <xs:enumeration value="SystemTable"/>
            <xs:enumeration value="TokenSpaceGuid"/>
            <xs:enumeration value="Variable"/>
            <xs:enumeration value="UNDEFINED"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="HexNumber">
        <xs:restriction base="xs:hexBinary">
            <xs:pattern value="0x([a-fA-F0-9])+"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="Md5Sum">
        <xs:restriction base="xs:normalizedString">
            <xs:pattern value="[a-zA-Z0-9]{32}"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="ModuleListType">
        <xs:list itemType="ModuleTypes"/>
    </xs:simpleType>

    <xs:simpleType name="ModuleTypes">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> The following module types are defined by specifications. </xs:documentation>
            <xs:documentation xml:lang="en-us"> Module types for components and libraries defined for this distribution
                mechanism. </xs:documentation>
        </xs:annotation>
        <xs:restriction base="xs:NCName">
            <xs:enumeration value="BASE ">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> Use of this module is not restricted. </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="DXE_CORE">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to the DXE core.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="DXE_DRIVER">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to a DXE driver.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="DXE_RUNTIME_DRIVER">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to a DXE runtime driver.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="DXE_SAL_DRIVER">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to an IPF DXE runtime driver.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="DXE_SMM_DRIVER">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to a DXE SMM driver.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="PEI_CORE">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to the PEI core.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="PEIM">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only valid for PEI modules. </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="SEC">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to Security phase.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="UEFI_DRIVER">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only valid for UEFI drivers. </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="UEFI_RUNTIME_DRIVER">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only valid for UEFI runtime
                        drivers.</xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="UEFI_APPLICATION">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only valid for UEFI applications.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="SMM_CORE">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This module is only applicable to the SMM
                        core.</xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="USER_DEFINED">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This content is restricted to a specific implementation.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="UNDEFINED">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This enumeration is for use in a list that where the package
                        creator does not know the what module types are supported by a module. </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:pattern value="([A-Z])([a-zA-Z0-9])*">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This pattern has been added for use in a module lists - for
                        future expansion. </xs:documentation>
                </xs:annotation>
            </xs:pattern>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="PcdDatumTypes">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> The following data types are defined by the PCD specification (or PCD
                section of the UEFI/PI specifications.) </xs:documentation>
        </xs:annotation>
        <xs:restriction base="xs:normalizedString">
            <xs:enumeration value="UINT8"/>
            <xs:enumeration value="UINT16"/>
            <xs:enumeration value="UINT32"/>
            <xs:enumeration value="UINT64"/>
            <xs:enumeration value="BOOLEAN"/>
            <xs:enumeration value="VOID*"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="PcdItemListType">
        <xs:list itemType="PcdItemTypes"/>
    </xs:simpleType>

    <xs:simpleType name="PcdItemTypes">
        <xs:restriction base="xs:NCName">
            <xs:enumeration value="FeaturePcd">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> The Feature PCD is a binary, evaluating to either true or false.
                        This is used during build to include/exclude content. It can also be used during execution to
                        force execution paths within drivers, or to enable/disable features within a driver for a given
                        platform. </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="FixedPcd">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> The Fixed PCD is a #define value that is set at build time.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="PatchPcd">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> The Patch PCD is a #define that is set at build time, and that
                        can be modified within a binary file. Additional information, such as the offset location of the
                        value, along with it's length may need to be provided.</xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="Pcd">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> This PCD type has an overloaded definition. Prior to build, the
                        platform integrator may choose to implement a PCD as Fixed, Patchable or a Dynamic PCD. If the
                        platform integrator choose to use the PCD as dynamic, then a PCD driver is required in the
                        platform (PEI/DXE/both) to track the PCD in some sort of 'database' of these items. For Dynamic
                        PCDs, the PcdGet* must pass in the token space guid and the token number to retrieve data
                        (PcdSet* also needs these values.) </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="PcdEx">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> The PCD can only be used as Dynamic, and the platform firmware
                        must contain a driver to maintain a 'database' of these items. For Dynamic PCDs, the PcdGet*
                        must pass in the token space guid and the token number to retrieve data (PcdSet* also needs
                        these values.) </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="RegistryFormatGuid">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> A GUID must contain five different Hexadecimal character sets that are
                separated by a dash (-) character. </xs:documentation>
        </xs:annotation>
        <xs:restriction base="xs:string">
            <xs:pattern value="\s*[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}\s*"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="SupportedOs">
        <xs:annotation>
            <xs:documentation xml:lang="en-us"> The EDK II build system supports workstations running one of the
                following supported operating systems. This is the OS for the developer's workstation, not the target
                platform. </xs:documentation>
        </xs:annotation>
        <xs:restriction base="xs:string">
            <xs:enumeration value="Win32">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> For Windows 2003, Windows XP and Windows Vista.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="Win64">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> For Windows 2003, Windows XP and Windows Vista.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="RedHat32"/>
            <xs:enumeration value="RedHat64"/>
            <xs:enumeration value="SuSE32"/>
            <xs:enumeration value="SuSE64"/>
            <xs:enumeration value="Linux32"/>
            <xs:enumeration value="Linux64"/>
            <xs:enumeration value="OS/X32"/>
            <xs:enumeration value="OS/X64"/>
            <xs:enumeration value="Generic"/>
            <xs:enumeration value="GenericWin">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> Typically, this is used for Windows Batch files.
                    </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:enumeration value="GenericNix">
                <xs:annotation>
                    <xs:documentation xml:lang="en-us"> Typically use for shell scripts - valid for any Linux and Mac
                        OS/X. </xs:documentation>
                </xs:annotation>
            </xs:enumeration>
            <xs:pattern value="[a-zA-Z]([a-zA-Z0-9])*"/>
        </xs:restriction>
    </xs:simpleType>

</xs:schema>