ReleaseNotes.txt

   1 Intel(R) Platform Innovation Framework for EFI
   2 EFI Development Kit II (EDK II)
   3 Root Package 1.00
   4 2006-07-18
   5
   6 Intel is a trademark or registered trademark of Intel Corporation or its
   7 subsidiaries in the United States and other countries.
   8 * Other names and brands may be claimed as the property of others.
   9 Copyright (c) 2006, Intel Corporation
  10
  11 This document provides updates to documentation, along with a description on
  12 how to install and build the EDK II.
  13
  14 Package Contents
  15 ----------------
  16   ReleaseNote.txt- These release notes for the package.
  17   MdePkg         - Industry-standard headers and libraries
  18   Tools          - Build -specific tools that are designed to help the
  19                    developer create and modify drivers and libraries
  20   EdkModulePkg   - Reference drivers
  21   EdkFatBinPkg   - Binary DXE drivers for the Fat 32 file system
  22   EdkShellBinPkg - Binary Shell applications and commands
  23   EdkNt32Pkg     - NT32 Emulation platform reference
  24
  25 Note: MDE and MDK that appear in other documentation refer to the MdePkg and
  26 Tools packages, respectively.  While, these two packages are the minimum
  27 requirement for developing EDK II Packageswe recommend that you download all
  28 of the top-level files listed above.
  29
  30 The following package is available as a separate project, under a separate
  31 license, on the TianoCore.org website: https://fat-driver2.tianocore.org
  32
  33   EdkFatPkg      - A package containing source DXE drivers for the Fat 32 file
  34                    system
  35
  36 Documents have the following filenames (to download these documents, see \93Notes
  37 on Documentation\94 later in these Release Notes):
  38   EDK II Module Development Environment Library Specification, v0.58
  39       (MDE_Library_Spec_0_58.rtf)
  40   EDK II Build and Packaging Architecture Specification, v0.53
  41       (Build_Packaging_Spec_0_53.rtf)
  42   EDK II Platform Configuration Database Infrastructure Description, v0.54
  43       (PCD_Infrastructure_0_54.rtf)
  44   EDK II Module Surface Area Specification, v0.51
  45       (Module_Surface_Area_0_50.rtf)
  46   EDK II Module Development Environment Package Specification, v0.51
  47       (MDE_Package_Spec_0_51.rtf)
  48   EDK II C Coding Standards Specification v0.51
  49       (C_Coding_Standards_Specification_ 0_51.rtf)
  50   EDK II Subversion Setup Guide
  51       (edk2-subversion-setup.rtf)
  52
  53 Pre-Requisites
  54 --------------
  55 The following list of tools must be installed on the development workstation
  56 prior to using the EDK II.
  57
  58 Compiler Tool Chain
  59       Microsoft* Visual Studio .NET 2003*  (http://www.microsoft.com)
  60     or
  61       A special GCC version 4.x or later (http://gcc.gnu.org). See below.
  62
  63 Assembler Tool Chain
  64       Microsoft Macro Assembler, version 6.15 or later
  65     or
  66       GNU binutils 2.16.1 or later
  67
  68 Java Development Kit ( Java 5.0 or later)
  69       Sun* jdk-1.5.0_06 or later (http://java.sun.com)
  70     or
  71       Bea Systems* jrockit-25.2.0-jdk1.5.0_03 or later (http://www.bea.com)
  72
  73 Java Tools
  74     Apache-ANT, version 1.6.5 or later (http://ant.apache.org)
  75     Ant-contrib, version 1.0b2 or later
  76       (http://prdownloads.sourceforge.net/ant-contrib/ant-contrib-1.0b2-bin.zip?download)
  77     Saxon8, version 8.1.1
  78       (http://prdownloads.sourceforge.net/saxon/saxonb8-1-1.zip?download)
  79     XMLBeans, version 2.1.0 (http://xmlbeans.apache.org)
  80       DO NOT download the latest XMLBeans, version 2.2.0. It is not compatible
  81       with Saxon8, version 8.1.1.
  82
  83 Other Tools
  84     TortoiseSVN version 1.3.3. (http://tortoisesvn.tigris.org/)
  85
  86 Optional Tools
  87 --------------
  88 Compiler Tool Chains:
  89     Intel(R) C++ Compiler for Windows*, ver. 9.0 or later (http://www.intel.com)
  90     Intel(R) C Compiler for EFI Byte Code, ver. 1.2 or later
  91       (http://www.intel.com/cd/software/products/asmo-na/eng/compilers/efibc/index.htm)
  92     Microsoft Driver Development Kit, version 3790.1830 or later
  93       (http://www.microsoft.com/whdc/devtools/ddk/orderddkcd.mspx)
  94     Microsoft ACPI Source Language Assembler, Version 1.0.13NT or later
  95     Intel ACPI Component Architecture, version 20060113
  96
  97 -----------------------------------------------
  98 Notes on Required Tools (Source Control System)
  99 -----------------------------------------------
 100 The EDK II is being managed by the Subversion Source Control on Tianocore.org.
 101 Subversion provides speed, security, and additional features. The
 102 recommended client is TortoiseSVN version 1.3.3.
 103  (Available at http://tortoisesvn.tigris.org/)
 104
 105 The checkout procedures on the Tianocore.org Web site include
 106 instructions for the use of Subversion Source Control.
 107
 108 The URL of the EDK II repository is:
 109   https://edk2.tianocore.org/svn/edk2/trunk/edk2
 110
 111
 112 --------------------------------------------------------------------
 113 Notes On Required Tools (With examples for Windows, OS X, and Linux*)
 114 --------------------------------------------------------------------
 115 Software Installation Order:
 116   After installing the compiler tools and your Subversion client, install the
 117   following required tools in this order:
 118     1. Java JDK
 119     2. Apache-Ant
 120     3. ant-contrib
 121     4. xmlbeans
 122     5. saxon8
 123
 124 Java Development Kit:
 125
 126    The Java Environment Variable must be set before attempting to build.
 127        For Sun JDK (see note below\86):
 128               set JAVA_HOME=c:\Java\jdk1.5.0_06  (Windows example)
 129               export JAVA_HOME=/Library/Java/Home/ (OS X example)
 130               export JAVA_HOME=/usr/lib/j2sdk1.5-sun/ (Linux example)
 131        For Bea Systems:
 132               set JAVA_HOME=c:\Java\jrockit-R26.0.0-jdk1.5.0_04
 133
 134   \86 When using the Sun JDK5.0:
 135     During installation, you should specify the install directory as C:\Java
 136     instead of C:\Program Files\(or some other drive letter.)  While installing
 137     to this non-standard location is not required, in practice, it seems to work
 138     more reliably.
 139     For the JDK, the install path is C:\Java\jdk1.5.0_06
 140     For the JRE, the install path is C:\Java\jre1.5.0_06
 141     Alternatively, you can specify C:\sunjavajdk and C:\sunjavajre.
 142
 143     NOTE: You cannot combine the location for the JDK and the JRE, because the
 144     JRE install removes most of the binaries and libraries installed by the JDK
 145     install.
 146
 147 Java Tools:
 148     The Apache-ANT requires the ANT_HOME environment variable to be set before
 149     attempting to build:
 150          set ANT_HOME=c:\<full path to where ant was installed>
 151           export ANT_HOME=~/ExternalTools/apache-ant (OS X and Linux example)
 152
 153     The ant-contrib.jar file should be installed in the %ANT_HOME%\lib
 154     directory.
 155
 156     XMLBeans, requires the XMLBEANS_HOME environment variable to be set
 157     before attempting to build:
 158          set XMLBEANS_HOME=C:\<full path to where xmlbeans was installed>
 159           export XMLBEANS_HOME=~/ExternalTools/xmlbeans (OS X and Linux example)
 160
 161     Copy the saxon8.jar file to the %XMLBEANS_HOME%\lib directory.
 162
 163    The Ant and XMLBean tools must be in the path.
 164      MS system example:
 165         set PATH=%PATH%;%ANT_HOME%\bin;%XMLBEANS_HOME%\bin
 166      Linux/OS X bash shell example:
 167         export PATH=$PATH:${ANT_HOME}/bin:${XMLBEANS_HOME}/bin
 168
 169 --------------------
 170 A Word on Apache-ANT
 171 --------------------
 172 The Apache-ANT program is a build tool that uses XML-based project files.
 173 Similar to Makefiles, these project files may contain multiple targets.  Most
 174 build.xml files in EDK II are auto-generated; any edits performed on the
 175 build.xml files will be overwritten by the next build.
 176
 177 Pre-defined targets in the build.xml file include:
 178     all      - This target builds binaries for defined architectures.
 179     clean    - This target removes object files generated by commands.
 180     cleanall - This target removes all generated files and directories.
 181
 182 ----------------------------
 183 A Word on the GCC Tool Chain
 184 ----------------------------
 185
 186 EDK II will not compile with a standard Linux gcc tool chain. While Linux
 187 distributions are usually based on ELF, EDK II requires a version of gcc that
 188 is configured to produce PE-COFF images. You will find a script in <Root of
 189 EDK2 tree>/Tools/gcc/tianoCross-gcc-4.1 that will download, configure, compile,
 190 and install a gcc 4.1 cross-compile tool chain for EDK II development. This
 191 custom tool chain supports the IA-32 architecture. It can be built and run on
 192 Cygwin, Linux, and many other POSIX-compliant host operating environments. To
 193 compile the custom gcc tool chain, you need the following tools on your host
 194 computer: bash, gcc, gmake, curl (or wget).
 195
 196 Only the MdePkg and EdkModulePkg are currently supported by gcc builds. Other
 197 builds, such as the EdkNt32Pkg, will not compile with gcc. By default, the edk2
 198 will try to build the NT32.fpd, which is not supported by gcc. So, you need to
 199 change the Tools/Conf/target.txt.
 200
 201 The cross-compile build script has been tested on Cygwin, OS X and Linux. You
 202 should expect to hack on these scripts to make them work on your system. You
 203 may need to install additional tools on your system to make the scripts work.
 204
 205 You will need
 206
 207   A recent version (3.0 or later should be fine) of gcc that is able to produce
 208     executables for the machine that you want to run this compiler on (the host
 209     machine).
 210   wget or curl (which enables the download of the gcc compiler source code)
 211   tar
 212   bzip
 213   gzip
 214   bash
 215   and possibly others
 216
 217 CYGWIN Notes
 218
 219 You should setup cygwin to use binmode on all mounts. When you initially
 220 install cygwin it gives you the choice of Unix file mode (recommended) or DOS
 221 file mode. Unix mode will cause all the cygwin directories to be mounted in
 222 binmode, while DOS will mount the dirs in textmode. Here is an example of a
 223 cygwin install where the dirs are (properly) mounted in binmode.
 224
 225 C:\cygwin\bin on /usr/bin type user (binmode)
 226 C:\cygwin\lib on /usr/lib type user (binmode)
 227 c:\workspace on /workspace type system (binmode)
 228 C:\cygwin on / type user (binmode)
 229
 230 If you use textmode, it is likely that the build will fail in a way that is
 231 hard to debug.
 232
 233 Cygwin is pretty slow, so it is not recommended for large builds.
 234
 235
 236
 237
 238
 239 The platform to be built is identified by the Tools/Conf/target.txt file:
 240
 241 #
 242 #  PROPERTY              Type       Use         Description
 243 #  ----------------      --------   --------    -----------------------------------------------------------
 244 #  ACTIVE_PLATFORM       Filename   Recommended Specify the WORKSPACE relative Path and Filename
 245 #                                               of the platform FPD file that will be used for the build
 246 #                                               This line is required if and only if the current working
 247 #                                               directory does not contain one or more FPD files.
 248
 249 ACTIVE_PLATFORM       =
 250
 251 You can leave it black, as above, or set it to any .fpd file in the workspace.
 252 If you leave it blank, then you just cd to the dir that contains the .fpd that
 253 you would like to build (MdePkg/ or EdkModulePkg/) and then type build.
 254
 255 ----------------------------
 256 A Word on compiling on Linux
 257 ----------------------------
 258
 259 In order to compile on Linux, you will need to have the e2fsprogs-dev package
 260 installed.  Check your distribution for the rpm, deb or other package format.
 261 This package contains the uuid library and header that are used by some of the
 262 host tools.
 263
 264 If you are running on x86_64 Linux, then you should install a 64 bit version of
 265 the Java JDK. The version that was used was jdk-1_5_0_07-linux-amd64-rpm.bin.
 266 It may be downloaded from sun.com.
 267
 268 -----------------------------------------
 269 A Word on compiling under Cygwin with gcc
 270 -----------------------------------------
 271
 272 Cygwin is a POSIX style operating environment for Windows. It is possible to
 273 compile the EDK 2 using gcc and cygwin. Compiling under cygwin is slow, because
 274 the underlying file accesses are slow in cygwin. For this reason, we do not
 275 encourage the use of cygwin. A true unix system will be a superior choice for
 276 those wishing to compile with gcc.
 277
 278 Make sure that you select the e2fsprogs development package when you install
 279 cygwin. It is necessary for the GenFvImage tool.
 280
 281 ----------------------------------------
 282 A Word on gcc for Processor Architectures
 283 ----------------------------------------
 284
 285 Currently gcc support is limited to IA-32 builds, generating IA-32 PE32 images.
 286
 287 The X64 bit (Intel 64, etc.) support under the gcc compiler does not support the EFIAPI
 288 calling convention (as defined in the UEFI 2.0 specification Chapter 2), so it is not
 289 possible to build a working EFI image for an X64 environment.  Since the x64 gcc does
 290 not support the EFIAPI calling convention the x64 tools do not support generating a
 291 PE32+ image.  The EFIAPI calling convention is very similar to the Microsoft x64
 292 calling convention.
 293
 294 On Itanium® Processors the gcc compiler does not support generating a PE32+ image.
 295
 296 -----------------------
 297 Notes on Documentation
 298 -----------------------
 299 The documents are being managed by the Subversion Source Control on
 300 Tianocore.org.  The document repository is "docs" and must be checked out
 301 separately from the EDK II source tree. Refer to the checkout procedures on
 302 the Tianocore.org Web site for EDK II.
 303
 304 The URL of the document repository is:
 305   https://edk2.tianocore.org/svn/edk2/trunk/docs
 306
 307
 308 -------------------------------------------------------------------------------
 309 Quick Start
 310 -----------
 311 (assumes Microsoft Tools and OS environment, for GCC Tools or Linux, see
 312 "Detailed Starting Instructions" below)
 313
 314 Follow the instructions at https://edk2.tianocore.org/servlets/ProjectSource to
 315 check out the entire EDK II source tree.
 316
 317 In a command window, change to the top-level directory of the EDK II source.
 318
 319 To test your tool chain setup and to build the supplied tools, execute:
 320     c:\MyWork\edk2\> edksetup ForceRebuild
 321
 322 (The edksetup script is referred to as the setup command throughout the
 323 rest of this document.)
 324       NOTE: You should run the setup command at the start of every session.
 325             This configures the environment to include the TianoTools and the
 326             Java applications and libraries.
 327
 328 You will need to set the WORKSPACE environment variable, or run the edksetup
 329 script (without any arguments), any time you want to build.
 330
 331   Set the WORKSPACE environment variable, e.g.:
 332
 333     c:\> set WORKSPACE=C:\MyWork\edk2
 334
 335 You may need to edit the text files Tools/Conf/target.txt and
 336 Tools/Conf/tools_def.txt (created by edksetup) using your favorite
 337 text editor to ensure that the paths to the tools you want to use
 338 to build EDK II binaries are correct.  These files contain the default
 339 paths (as per the default installation of the tools), so a customized
 340 install may require this manual process.
 341
 342 Once this is completed, you are ready to test the build, by executing:
 343     c:\MyWork\edk2\> build
 344
 345 This command builds the active platform specified in text file target.txt. If
 346 the active platform is not specified target.txt, you must execute the build
 347 command from the sub-directory that contains FPD files. For more information
 348 about the active platform policy, see the \93EDK II Build and Packaging
 349 Architecture Specification.\94
 350
 351 -------------------------------------------------------------------------------
 352 Detailed Starting Instructions
 353 ------------------------------
 354
 355 Follow the instructions at https://edk2.tianocore.org/servlets/ProjectSource to
 356 check out the entire EDK II source tree.
 357
 358 In a command window, change to the top-level directory of the EDK II source.
 359
 360 If the active compiler tool chain is GCC, you must set the
 361 environment variable, TOOL_CHAIN to "gcc" before running the
 362 edksetup script.  Example: export TOOL_CHAIN=gcc
 363
 364 To test your tool chain setup and to build the supplied tools, execute:
 365     c:\MyWork\edk2\> edksetup ForceRebuild
 366
 367 On Linux systems, you must source the edksetup.sh file to load the correct
 368 settings into your shell.
 369
 370     . edksetup.sh # Note the dot.
 371
 372 If you have recently updated your code from subversion, the tools will need to
 373 be rebuilt if there were any code changes made to them. You can request that
 374 the tools get rebuilt by typing:
 375
 376     . edksetup.sh Rebuild # Unix-like systems
 377     edksetup.bat Rebuild  # Windows
 378
 379 The edksetup script is referred to as the setup command throughout the
 380 rest of this document.
 381       NOTE: You should run the setup command at the start of every session.
 382             This configures the environment to include the TianoTools and the
 383             Java applications and libraries.
 384
 385 Any changes to the tool source code or XML Schema documents require that
 386 you execute the following:
 387    c:\MyWork\edk2\> edksetup ForceRebuild
 388
 389 You must set the WORKSPACE environment variable, or run the edksetup
 390 script (without any arguments), any time you want to build.
 391
 392   Set the WORKSPACE environment variable, e.g.:
 393
 394     c:\> set WORKSPACE=C:\MyWork\edk2
 395
 396 You may need to edit the text files Tools/Conf/target.txt and
 397 Tools/Conf/tools_def.txt (created by edksetup) using your favorite
 398 text editor to ensure that the paths to the tools you want to use
 399 to build EDK II binaries are correct.  These files contain the default
 400 paths (as per the default installation of the tools), so a customized
 401 tool installation may require this manual process.
 402
 403 Once this is completed, you are ready to test the build, by executing:
 404     c:\MyWork\edk2\> build
 405
 406 This command builds the active platform specified in text file target.txt. If
 407 the active platform is not specified, go to the sub-directory that contains FPD
 408 files and execute the build command. For more information about the active
 409 platform policy, see the \93EDK II Build and Packaging Architecture
 410 Specification.\94
 411
 412 --------------------------
 413 Individual Platform Builds
 414 --------------------------
 415 After running the setup command, you can build individual platforms.
 416 In the command window:
 417   Set the active platform in target.txt, and execute this command:
 418     c:\<directory>\> build
 419 or
 420   cd to the platform (FPD file) that you want to build and execute this command:
 421     c:\MyWork\edk2\EdkNt32Pkg\> build
 422
 423   Note that the active platform specified in target.txt overrides the platform
 424   specified by any FPD file in the current directory. For more   information
 425   about active platform policy, see the \93EDK II Build and Packaging Architecture
 426   Specification.\94
 427
 428 To run the Nt32 emulation platform under Microsoft Windows, go to
 429 <full build path>\DEBUG\MSFT\IA32 and execute SecMain.exe
 430
 431 To exit the Nt32 emulation platform, type \93reset\94 at the EFI Shell>
 432 command prompt.  Alternatively, from the graphical interface, select the Boot
 433 Maintenance Manager's \93Reset System\94 command.
 434
 435       NOTE: When creating a new platform, the Platform Name is restricted
 436       to a single word containing alphanumeric characters, underscore, dash,
 437       and period.  The space character and other special characters are
 438       not allowed.
 439
 440 -----------------------
 441 Notes on Symbolic Debug
 442 -----------------------
 443 To enable EFI Symbolic Debugging, make sure the target output is set to DEBUG
 444 in the text file Tools/Conf/target.txt and then modify the FPD <BuildOptions>
 445 <Options><Option BuildTargets="DEBUG" ToolCode="CC"> and append the following
 446 compiler options to the string:
 447 "/D EFI_GENERATE_SYM_FILE", "/D EFI_SYMBOLIC_DEBUG"
 448
 449 (If the Option line does not contain "/D EFI_DEBUG", you must add that
 450 option as well.)
 451
 452 ------------------------
 453 Individual Module Builds
 454 ------------------------
 455 After running the setup command, you can build individual modules.
 456   In the command window, cd to the module that you want to build, and
 457   execute the build command:
 458     c:\MyWork\edk2\MdePkg\Library\BaseLib\> build
 459
 460   You must set the active platform in target.txt for individual module builds.
 461
 462 -------------------------------------------------------------------------------
 463
 464 General Information:
 465 ===============================================================
 466 Mechanisms
 467 ----------
 468 A brief overview:
 469
 470 A) The Surface Area Package Description (SPD) file contains information about
 471 the modules that the package contains, including the location of all MSA files,
 472 and public library names and headers that might be provided by a module in the
 473 package.  Packages are defined by SPD files.  (Found in the root of the Package
 474 subdirectory (i.e. EdkNt32Pkg).) The SPD file is further explained in \93EDK II
 475 Build and Packaging Architecture Specification.\94
 476
 477 B) Module Surface Area Definition (MSA) files.  A description of a module's
 478 surface area, with all module specific default flags and features specified.
 479 For additional details, see the "EDK II Module Surface Area Specification" and
 480 the "EDK II Build and Packaging Architecture Specification."
 481
 482 C) Framework Platform Description (FPD) files.  A description of a platform's
 483 surface are, including a list of modules that are needed by the platform.  To
 484 support individual module builds, developers are not required to provide
 485 information about specific flash devices, nor flash device layout.
 486 Specific sections in the FPD file control aspects of the build, such
 487 as the Supported Architectures and Build Targets, as well as the tool flags
 488 that are used to create the binary files.  A valid platform file can specify
 489 zero or more modules, so individual modules can be compiled within the context
 490 of a platform (FPD) definition.
 491
 492 D) Platform Configuration Database (PCD).  A platform database that contains a
 493 variety of current platform settings or directives that can be accessed by a
 494 driver or application.  The PCD is defined by the PCD_Protocol (This is
 495 further explained in the "EDK II Platform Configuration Database Infrastructure
 496 Description."
 497
 498 E) Library Class.  A library class is a logical grouping of similar functions.
 499 When developing components, the module surface area declares the class of
 500 libraries that can be used by the component. The MSA and SPD files can specify
 501 a recommended instance of the library that a platform integrator (PI) may
 502 select, however this is only a recommendation.  The PI may choose to select a
 503 different library instance to be used during compilation and linking. All
 504 library type modules must include header files in their distribution package,
 505 as well as their MSA files. Components, on the other hand, need provide only an
 506 MSA file and either source or binary files when distributing packages.  The
 507 Library Classes are further explained in the "EDK II Build and Packaging
 508 Architecture Specification."
 509
 510 =========================================================================
 511 The common operations by developers of new modules are:
 512 -----------------------------------------------
 513 1) Manually creating a new module in a package:
 514   - The module source code must first be created in an appropriate directory
 515     (under the package the module is to be a part of.)
 516   - An MSA file must be created, spelling out all aspects of the module.
 517   - The MSA must be added to the SPD for the package to include the module.
 518
 519 -----------------------------------------------------
 520 2) Adding and Removing modules to and from a package:
 521
 522   - Set up environment as Build
 523   - Adding a module to a package:
 524      - Generate the MSA file
 525      - Add a new <Filename> element under <MsaFiles> into
 526        <PackageDir>\<PackageName>.spd, using arelative path to the package
 527      - Add a new <ModuleSA> entry under each <FrameworkModules> into the
 528        <PackageDir>\<PackageName>.fpd file if necessary.
 529
 530    - Removing a module from a package:
 531      - Comment out or remove the corresponding <Filename> element under
 532        <MsaFiles> from <PackageDir>\<PackageName>.spd
 533      - Comment out or remove the corresponding <ModuleSA> entry under each
 534        <FrameworkModules> from <PackageDir>\<PackageName>.fpd if necessary.
 535
 536 -------------------------------
 537 3) Manually creating a package:
 538   - Identify the modules that are to be members of the project.
 539   - Identify the Variables and Guids required in and of the Package (including
 540     consumption and production information).
 541   - Create an SPD file defining these modules and calling out their MSA files.
 542   - Add a new <Filename> element under <PackageList> into
 543     Tools\Conf\FrameworkDatabase.db, using the relative path to the workspace.
 544
 545 -----------------------------------------
 546 4) Declaring a new Protocol in a package:
 547   - This release requires manual editing of the SPD file, adding the protocol
 548     to the ProtocolDeclarations section of the file.
 549   - Add the Protocol .h file to the Include\Protocol directory.
 550   - Add an <Entry> to the <ProtocolDeclarations> element in the
 551     <PackageName>.spd file
 552      - Each line contains Protocol base name, followed by the global variable
 553        name, and        the hex value of the Protocol GUID.
 554
 555 Example Protocol Entries (NOTE: The Guid entry is a single line in the SPD
 556 file):
 557 <ProtocolDeclarations>
 558   <Entry Name="Bds">
 559     <C_Name>gEfiBdsArchProtocolGuid</C_Name>
 560     <GuidValue>665E3FF6-46CC-11D4-9A38-0090273FC14D</GuidValue>
 561     <HelpText/>
 562   </Entry>
 563   <Entry Name="Cpu">
 564     <C_Name>gEfiCpuArchProtocolGuid</C_Name>
 565     <GuidValue>26BACCB1-6F42-11D4-BCE7-0080C73C8881</GuidValue>
 566     <HelpText/>
 567   </Entry>
 568 </ProtocolDeclarations>
 569
 570 ------------------------------------
 571 5) Declaring a new PPI in a package:
 572   - This release requires manual editing of the SPD file
 573   - Add the PPI .h file to the Include\Ppi directory.
 574   - Add an <Entry> to the package <PpiDeclarations> element in the
 575     <PackageName>.spd file
 576      - Each line contains the PPI base name, followed by the global variable
 577        name and        the hex value of the PPI GUID.
 578
 579 Example Ppi Entries (NOTE: The Guid entry is a single line in the SPD file):
 580 <PpiDeclarations>
 581   <Entry Name="BootInRecoveryMode">
 582     <C_Name>gEfiPeiBootInRecoveryModePpiGuid</C_Name>
 583     <GuidValue>17EE496A-D8E4-4B9A-94D1-CE8272300850</GuidValue>
 584     <HelpText/>
 585   </Entry>
 586   <Entry Name="CpuIo">
 587     <C_Name>gEfiPeiCpuIoPpiInServiceTableGuid</C_Name>
 588     <GuidValue>E6AF1F7B-FC3F-46DA-A828-A3B457A44282</GuidValue>
 589     <HelpText/>
 590   </Entry>
 591 </PpiDeclarations>
 592
 593 -------------------------------------
 594 6) Declaring a new GUID in a package:
 595   - This release requires manual editing of the SPD file to include the new
 596     Guid.  This is identical to adding a ProtocolDeclaration or PpiDeclaration
 597     element, as described above.
 598
 599 ------------------------------------------
 600 7) Declaring a new PCD entry in a package:
 601   - This release requires manual editing of the SPD file to include the new
 602     PCD.  New Pcd entries are added to the PcdDefinitions section of the
 603     <PackageName>.spd file using the following example for the format
 604     (NOTE: The hex <Token> value must be unique):
 605
 606 <PcdDeclarations>
 607   <PcdEntry ItemType="FIXED_AT_BUILD">
 608     <C_Name>PcdMaximumUnicodeStringLength</C_Name>
 609     <Token>0x00000001</Token>
 610     <TokenSpaceGuidCName>gEfiMdePkgTokenSpaceGuid</TokenSpaceGuidCName>
 611     <DatumType>UINT32</DatumType>
 612     <ValidUsage>FIXED_AT_BUILD</ValidUsage>
 613     <DefaultValue>1000000</DefaultValue>
 614     <HelpText>The maximum lengh for unicode string.</HelpText>
 615   </PcdEntry>
 616 </PcdDeclarations>
 617
 618 ------------------------------
 619 8) Declaring a new Library Class:
 620   - This release requires manual editing of the SPD file to include the new
 621     Library Class.  New Library Class entries are added to the
 622     LibraryClassDeclarations section of the <PackageName>.spd file using
 623     the following example for the format:
 624
 625 <LibraryClassDeclarations>
 626   <LibraryClass Name="BaseLib">
 627     <IncludeHeader>Include/Library/BaseLib.h</IncludeHeader>
 628     <HelpText/>
 629   </LibraryClass>
 630   <LibraryClass Name="BaseMemoryLib">
 631     <IncludeHeader>Include/Library/BaseMemoryLib.h</IncludeHeader>
 632     <HelpText/>
 633   </LibraryClass>
 634 </LibraryClassDeclarations>
 635
 636 =======================================================
 637 EDK II Changes Relative to the original EDK:
 638 --------------------------------------------
 639 The EDK II represents significant changes in the structure of the EDK.
 640 Therefore, it is very difficult to isolate all of the changes of this version of
 641 the EDK with the original EDK.
 642
 643 Of particular note:
 644
 645 1) EDK II contains new hardware feature support for the ICH SMBUS Libraries.
 646    These libraries are provided to make Memory Reference Code (MRC) development
 647    easier.
 648 2) The MDE libraries represent significant changes in source
 649    (with only limited changes in functionality.)  These new libraries conform
 650    to the "EDK II Module Development Environment Library Specification.\94
 651 3) The Fat Binary and the EDK Shell Binary Packages are functionally identical
 652    to the original EDK.
 653 4) The EDK tools directory has been expanded to include more tools and more
 654    tool functionality.
 655 5) The EDK NT32 section has been ported to the new build process, but
 656    functionally remains the same as the original EDK.
 657 6) The Application "HelloWorld" has been ported to EDK II as well.
 658
 659 =======================================================
 660 Virus scanned by McAfee VirusScan Enterprise 8.0.0, Virus Definitions 4718, no
 661 virus detected.
 662