1menu "EFI (Extensible Firmware Interface) Support" 2 depends on EFI 3 4config 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 21config EFI_ESRT 22 bool 23 depends on EFI && !IA64 24 default y 25 26config 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 35config 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 44config 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 55config EFI_PARAMS_FROM_FDT 56 bool 57 help 58 Select this config option from the architecture Kconfig if 59 the EFI runtime support gets system table address, memory 60 map address, and other parameters from the device tree. 61 62config EFI_RUNTIME_WRAPPERS 63 bool 64 65config EFI_ARMSTUB 66 bool 67 68endmenu 69 70config UEFI_CPER 71 bool 72