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 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 21config 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 30config 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 39config 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 50config 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 57config EFI_RUNTIME_WRAPPERS 58 bool 59 60config EFI_ARMSTUB 61 bool 62 63endmenu 64 65config UEFI_CPER 66 bool 67