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:
  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://github.com/vathpela/efibootmgr>
  20
  21 config EFI_ESRT
  22         bool
  23         depends on EFI && !IA64
  24         default y
  25
  26 config EFI_VARS_PSTORE
  27         tristate "Register efivars backend for pstore"
  28         depends on EFI_VARS && PSTORE
  29         default y
  30         help
  31           Say Y here to enable use efivars as a backend to pstore. This
  32           will allow writing console messages, crash dumps, or anything
  33           else supported by pstore to EFI variables.
  34
  35 config EFI_VARS_PSTORE_DEFAULT_DISABLE
  36         bool "Disable using efivars as a pstore backend by default"
  37         depends on EFI_VARS_PSTORE
  38         default n
  39         help
  40           Saying Y here will disable the use of efivars as a storage
  41           backend for pstore by default. This setting can be overridden
  42           using the efivars module's pstore_disable parameter.
  43
  44 config EFI_RUNTIME_MAP
  45         bool "Export efi runtime maps to sysfs"
  46         depends on X86 && EFI && KEXEC_CORE
  47         default y
  48         help
  49           Export efi runtime memory maps to /sys/firmware/efi/runtime-map.
  50           That memory map is used for example by kexec to set up efi virtual
  51           mapping the 2nd kernel, but can also be used for debugging purposes.
  52
  53           See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
  54
  55 config EFI_FAKE_MEMMAP
  56         bool "Enable EFI fake memory map"
  57         depends on EFI && X86
  58         default n
  59         help
  60           Saying Y here will enable "efi_fake_mem" boot option.
  61           By specifying this parameter, you can add arbitrary attribute
  62           to specific memory range by updating original (firmware provided)
  63           EFI memmap.
  64           This is useful for debugging of EFI memmap related feature.
  65           e.g. Address Range Mirroring feature.
  66
  67 config EFI_MAX_FAKE_MEM
  68         int "maximum allowable number of ranges in efi_fake_mem boot option"
  69         depends on EFI_FAKE_MEMMAP
  70         range 1 128
  71         default 8
  72         help
  73           Maximum allowable number of ranges in efi_fake_mem boot option.
  74           Ranges can be set up to this value using comma-separated list.
  75           The default value is 8.
  76
  77 config EFI_PARAMS_FROM_FDT
  78         bool
  79         help
  80           Select this config option from the architecture Kconfig if
  81           the EFI runtime support gets system table address, memory
  82           map address, and other parameters from the device tree.
  83
  84 config EFI_RUNTIME_WRAPPERS
  85         bool
  86
  87 config EFI_ARMSTUB
  88         bool
  89
  90 endmenu
  91
  92 config UEFI_CPER
  93         bool