| menu "EFI (Extensible Firmware Interface) Support" |
| depends on EFI |
| |
| config EFI_VARS |
| tristate "EFI Variable Support via sysfs" |
| depends on EFI |
| default n |
| help |
| If you say Y here, you are able to get EFI (Extensible Firmware |
| Interface) variable information via sysfs. You may read, |
| write, create, and destroy EFI variables through this interface. |
| |
| Note that using this driver in concert with efibootmgr requires |
| at least test release version 0.5.0-test3 or later, which is |
| available from Matt Domsch's website located at: |
| <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz> |
| |
| Subsequent efibootmgr releases may be found at: |
| <http://linux.dell.com/efibootmgr> |
| |
| config EFI_VARS_PSTORE |
| tristate "Register efivars backend for pstore" |
| depends on EFI_VARS && PSTORE |
| default y |
| help |
| Say Y here to enable use efivars as a backend to pstore. This |
| will allow writing console messages, crash dumps, or anything |
| else supported by pstore to EFI variables. |
| |
| config EFI_VARS_PSTORE_DEFAULT_DISABLE |
| bool "Disable using efivars as a pstore backend by default" |
| depends on EFI_VARS_PSTORE |
| default n |
| help |
| Saying Y here will disable the use of efivars as a storage |
| backend for pstore by default. This setting can be overridden |
| using the efivars module's pstore_disable parameter. |
| |
| config EFI_RUNTIME_MAP |
| bool "Export efi runtime maps to sysfs" |
| depends on X86 && EFI && KEXEC |
| default y |
| help |
| Export efi runtime memory maps to /sys/firmware/efi/runtime-map. |
| That memory map is used for example by kexec to set up efi virtual |
| mapping the 2nd kernel, but can also be used for debugging purposes. |
| |
| See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map. |
| |
| endmenu |
| |
| config UEFI_CPER |
| bool |
