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+What: /sys/firmware/efi/fw_vendor
+Date: December 2013
+Contact: Dave Young <dyoung@redhat.com>
+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 <dyoung@redhat.com>
+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 <dyoung@redhat.com>
+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 <Narendra.K@dell.com>, 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.