pciutils.efi/PciUtilsPkg is a UDK/EDK2 porting of GNU's pciutils for the handy PCI tools: lspci and setpci
As a full UDK package, PciUtilsPkg can be built using either the standard EDK II build process or iPug.

1. Python 2.7.10+ or Python 3.7.0+
2. git 2.19.0+
3. UDK/EDK2 code tree in following tags: edk2-stable{201811, 201903, 201905}
4. git-cloned GNU's pciutils to directory PciUtilsPkg/pciutils (if not using iPug)

1. nasm (2.0 or above)
2. iasl (version 2018xxxx or later, maybe optional)
3. MSVC(Windows) or Xcode(Mac) or GCC(Open-source Posix)
4. build-essential uuid-dev (Posix)
5. pip2 install future (Python 2.7.x)
6. motc (Xcode)
7. Reference:
   • Getting Started with EDK II
   • Xcode

• sudo apt update && sudo apt install nasm iasl build-essential uuid-dev
• When using the latest iPug:
  • pip install ipug --user --upgrade

1. Only Linux (Debian & Arch) and Windows build are tested. Xcode is not covered yet.
2. The double/triple/quadruple command with {'x', 'm', 'v' ...} may not work correctly.
3. UDK with Python3 has build-dependency issue which causes slow re-building. Python2 is still recommended anyway.
4. "pci.ids" database is not working yet. (Many thanks to http://www.lab-z.com/disfopen/)

1. git clone https://github.com/timotheuslin/pciutils.efi.git
2. Change-directory to folder pciutils.efi .
3. (Optional) Edit CODETREE in project.py to specify where to place the downloaded source files of the UDK git repo or any other additional respos.
4. To build the code, run python project.py setup then python project.py. (iPug will then handle all the rest of the tedious works with the UDK code tree setup and the build process.)
5. Browse to folder Build/PciUtilsPkg for the build results.
6. Browse to folder Build/Conf for CONF_PATH setting files.
7. Run python project.py {clean, cleanall} to clean (all) the intermediate files.
8. The PCI list data base file, pci.ids must be copied alone with lspci.efi.

1. The full UDK code tree is git-cloned-checked-out to:
   • Windows: %USERPROFILE%/.cache/pug/edk2
   • Linux: $HOME/.cache/pug/edk2
2. On Windows, the default MSVC tool chain tag is vs2012x86. The following command should be run first in the command console:
   • "C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" x86
3. pciutils.efi, as the current working directory, is assigned as the "WORKSPACE" directory. PACKAGES_PATH a.k.a. MULTIPLE-WORKSPACE is used here to implicitly reference other standard packages outside the current working directory tree.
4. For the 1st-time one-shot setup, following code trees are automatically git-cloned:
   • the UDK code tree
   • the openssl repo (and some other CryptoPkg's submodules maybe)
   • the edk2-libc code tree -- UDK newer than edk2-stable201905 needs this for StdLib package.
   • the GNU pciutils source