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Linux/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 config EFI_PARAMS_FROM_FDT
 51         bool
 52         help
 53           Select this config option from the architecture Kconfig if
 54           the EFI runtime support gets system table address, memory
 55           map address, and other parameters from the device tree.
 56 
 57 endmenu
 58 
 59 config UEFI_CPER
 60         bool

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