【UEFI实战】在Windows下运行UEFI BIOS（Nt32篇）

￡神魔★判官ぃ 2023-10-17 23:06 36阅读 0赞

## 综述 ##

EDK2源代码中有一个PKG名称Nt32Pkg：

![70][]

通过这个PKG可以编译出可以在Windows下直接运行的UEFI BIOS程序，因此可以通过它来学习UEFI的一些基础和细节。

本文主要介绍如何编译这个PKG以及如何运行生成的BIOS。

源代码来自：[vUDK2017: https://github.com/tianocore/edk2.git Tag vUDK2017.][vUDK2017_ https_github.com_tianocore_edk2.git Tag vUDK2017.]，也可以在[GitHub - tianocore/edk2: EDK II][GitHub - tianocore_edk2_ EDK II]官网下载。

编译和运行环境如下：

*  Windows10 VS2015 Community。
 *  IDE：VS Code。

## 编译 ##

1. 下载源代码，根目录是D:\\Codes\\vUDK2017（可以随意调整）；

2. 在该目录打开一个cmd窗口：

![70 1][]

3. 运行edksetup.bat --nt32：

![70 2][]

4. 这行完成之后在Conf目录会生成新的文件（下图未标绿色钩子的文件）：

![70 3][]

5. 这里需要编辑的是target.txt文件：

#
    #  PROPERTY              Type       Use         Description
    #  ----------------      --------   --------    -----------------------------------------------------------
    #  ACTIVE_PLATFORM       Filename   Recommended Specify the WORKSPACE relative Path and Filename
    #                                               of the platform description file that will be used for the
    #                                               build. This line is required if and only if the current
    #                                               working directory does not contain one or more description
    #                                               files.
    ACTIVE_PLATFORM       = Nt32Pkg/Nt32Pkg.dsc
    
    #  TARGET                List       Optional    Zero or more of the following: DEBUG, RELEASE, NOOPT
    #                                               UserDefined; separated by a space character.
    #                                               If the line is missing or no value is specified, all
    #                                               valid targets specified in the platform description file 
    #                                               will attempt to be built. The following line will build 
    #                                               DEBUG platform target.
    TARGET                = DEBUG
    
    #  TARGET_ARCH           List       Optional    What kind of architecture is the binary being target for.
    #                                               One, or more, of the following, IA32, IPF, X64, EBC, ARM
    #                                               or AArch64.
    #                                               Multiple values can be specified on a single line, using
    #                                               space charaters to separate the values.  These are used
    #                                               during the parsing of a platform description file, 
    #                                               restricting the build output target(s.)
    #                                               The Build Target ARCH is determined by (precedence high to low):
    #                                                 Command-line: -a ARCH option
    #                                                 target.txt: TARGET_ARCH values
    #                                                 DSC file: [Defines] SUPPORTED_ARCHITECTURES tag
    #                                               If not specified, then all valid architectures specified
    #                                               in the platform file, for which tools are available, will be
    #                                               built.
    TARGET_ARCH           = IA32
    
    #  TOOL_DEFINITION_FILE  Filename  Optional   Specify the name of the filename to use for specifying
    #                                             the tools to use for the build.  If not specified,
    #                                             WORKSPACE/Conf/tools_def.txt will be used for the build.
    TOOL_CHAIN_CONF       = Conf/tools_def.txt
    
    #  TAGNAME               List      Optional   Specify the name(s) of the tools_def.txt TagName to use.
    #                                             If not specified, all applicable TagName tools will be
    #                                             used for the build.  The list uses space character separation.
    TOOL_CHAIN_TAG        = VS2015x86
    
    # MAX_CONCURRENT_THREAD_NUMBER  NUMBER  Optional  The number of concurrent threads. Recommend to set this
    #                                                 value to one more than the number of your compurter
    #                                                 cores or CPUs. Less than 2 means disable multithread build.
    MAX_CONCURRENT_THREAD_NUMBER = 1
    
    
    # BUILD_RULE_CONF  Filename Optional  Specify the file name to use for the build rules that are followed
    #                                     when generating Makefiles. If not specified, the file: 
    #                                     WORKSPACE/Conf/build_rule.txt will be used
    BUILD_RULE_CONF = Conf/build_rule.txt

6. target.txt就是用来确定编译的目标，从上面可以看到默认编译的就是Nt32Pkg，这里需要修改的是TOOL\_CHAIN\_TAG这一项，因为我们使用的是VS2015 Community，所以这里修改成VS2015x86，具体这个值的来源可以参考同目录下的tools\_def.txt文件。

7. 之后运行build进行编译：

![70 4][]

8. 编译完成：

![70 5][]

## 使用 ##

编译完成后可以在根目录下找到Build目录，在该目录下可以找到对应的二进制可执行文件：

![70 6][]

双击该文件就可以执行：

![70 7][]

[70]: https://img-blog.csdn.net/20180805120229938?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ppYW5nd2VpMDUxMg==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70
[vUDK2017_ https_github.com_tianocore_edk2.git Tag vUDK2017.]: https://gitee.com/jiangwei0512/vUDK2017
[GitHub - tianocore_edk2_ EDK II]: https://github.com/tianocore/edk2
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