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lf-6.6.y
linux-imx/Documentation/ABI/testing/sysfs-firmware-efi
Narendra K 1c5fecb612 efi: Export Runtime Configuration Interface table to sysfs 
System firmware advertises the address of the 'Runtime
Configuration Interface table version 2 (RCI2)' via
an EFI Configuration Table entry. This code retrieves the RCI2
table from the address and exports it to sysfs as a binary
attribute 'rci2' under /sys/firmware/efi/tables directory.
The approach adopted is similar to the attribute 'DMI' under
/sys/firmware/dmi/tables.

RCI2 table contains BIOS HII in XML format and is used to populate
BIOS setup page in Dell EMC OpenManage Server Administrator tool.
The BIOS setup page contains BIOS tokens which can be configured.

Signed-off-by: Narendra K <Narendra.K@dell.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
2019-08-08 11:10:25 +03:00

1.3 KiB
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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.