What: /sys/firmware/efi/fw_vendor Date: December 2013 Contact: Dave Young Description: It shows the physical address of firmware vendor field in the EFI system table. Users: Kexec What: /sys/firmware/efi/runtime Date: December 2013 Contact: Dave Young Description: It shows the physical address of runtime service table entry in the EFI system table. Users: Kexec What: /sys/firmware/efi/config_table Date: December 2013 Contact: Dave Young Description: It shows the physical address of config table entry in the EFI system table. Users: Kexec What: /sys/firmware/efi/systab Date: April 2005 Contact: linux-efi@vger.kernel.org Description: Displays the physical addresses of all EFI Configuration Tables found via the EFI System Table. The order in which the tables are printed forms an ABI and newer versions are always printed first, i.e. ACPI20 comes before ACPI. Users: dmidecode What: /sys/firmware/efi/tables/rci2 Date: July 2019 Contact: Narendra K , linux-bugs@dell.com Description: Displays the content of the Runtime Configuration Interface Table version 2 on Dell EMC PowerEdge systems in binary format Users: It is used by Dell EMC OpenManage Server Administrator tool to populate BIOS setup page.