| Matt Fleming | 0485177 | 2013-02-08 15:48:51 +0000 | [diff] [blame] | 1 | menu "EFI (Extensible Firmware Interface) Support" |
| 2 | depends on EFI |
| 3 | |
| 4 | config EFI_VARS |
| 5 | tristate "EFI Variable Support via sysfs" |
| 6 | depends on EFI |
| 7 | default n |
| 8 | help |
| 9 | If you say Y here, you are able to get EFI (Extensible Firmware |
| 10 | Interface) variable information via sysfs. You may read, |
| 11 | write, create, and destroy EFI variables through this interface. |
| 12 | |
| 13 | Note that using this driver in concert with efibootmgr requires |
| 14 | at least test release version 0.5.0-test3 or later, which is |
| 15 | available from Matt Domsch's website located at: |
| 16 | <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz> |
| 17 | |
| 18 | Subsequent efibootmgr releases may be found at: |
| 19 | <http://linux.dell.com/efibootmgr> |
| 20 | |
| 21 | config EFI_VARS_PSTORE |
| 22 | tristate "Register efivars backend for pstore" |
| 23 | depends on EFI_VARS && PSTORE |
| 24 | default y |
| 25 | help |
| 26 | Say Y here to enable use efivars as a backend to pstore. This |
| 27 | will allow writing console messages, crash dumps, or anything |
| 28 | else supported by pstore to EFI variables. |
| 29 | |
| 30 | config EFI_VARS_PSTORE_DEFAULT_DISABLE |
| 31 | bool "Disable using efivars as a pstore backend by default" |
| 32 | depends on EFI_VARS_PSTORE |
| 33 | default n |
| 34 | help |
| 35 | Saying Y here will disable the use of efivars as a storage |
| 36 | backend for pstore by default. This setting can be overridden |
| 37 | using the efivars module's pstore_disable parameter. |
| 38 | |
| Luck, Tony | 7ea6c6c | 2013-10-28 14:06:55 -0700 | [diff] [blame] | 39 | config UEFI_CPER |
| 40 | def_bool n |
| 41 | |
| Dave Young | 926172d | 2013-12-20 18:02:18 +0800 | [diff] [blame^] | 42 | config EFI_RUNTIME_MAP |
| 43 | bool "Export efi runtime maps to sysfs" |
| 44 | depends on X86 && EFI && KEXEC |
| 45 | default y |
| 46 | help |
| 47 | Export efi runtime memory maps to /sys/firmware/efi/runtime-map. |
| 48 | That memory map is used for example by kexec to set up efi virtual |
| 49 | mapping the 2nd kernel, but can also be used for debugging purposes. |
| 50 | |
| 51 | See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map. |
| 52 | |
| Matt Fleming | 0485177 | 2013-02-08 15:48:51 +0000 | [diff] [blame] | 53 | endmenu |