pciutils.efi is a UDK/EDK2 porting of the GNU’s pciutils for the handy PCI tools: lspci and setpci[…]
https://github.com/timotheuslin/pciutils.efi
Requires PUG to build: https://github.com/timotheuslin/PugPkg
See-also: https://github.com/pciutils/pciutils