drivers/firmware/efi/Kconfig

   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
  39 config EFI_RUNTIME_MAP
  40         bool "Export efi runtime maps to sysfs"
  41         depends on X86 && EFI && KEXEC
  42         default y
  43         help
  44           Export efi runtime memory maps to /sys/firmware/efi/runtime-map.
  45           That memory map is used for example by kexec to set up efi virtual
  46           mapping the 2nd kernel, but can also be used for debugging purposes.
  47
  48           See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
  49
  50 endmenu
  51
  52 config UEFI_CPER
  53         bool