blob: 84533e02fbf8ba292cddf960fde5881e1898821c [file] [log] [blame]
Matt Fleming04851772013-02-08 15:48:51 +00001menu "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
Peter Jones0e4ca022014-12-09 16:14:11 -050015 available from:
Matt Fleming04851772013-02-08 15:48:51 +000016 <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz>
17
18 Subsequent efibootmgr releases may be found at:
Peter Jones0e4ca022014-12-09 16:14:11 -050019 <http://github.com/vathpela/efibootmgr>
Matt Fleming04851772013-02-08 15:48:51 +000020
Peter Jones3846c152015-06-05 15:14:54 -040021config EFI_ESRT
22 bool
23 depends on EFI && !IA64
24 default y
25
Matt Fleming04851772013-02-08 15:48:51 +000026config 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
Dave Young926172d2013-12-20 18:02:18 +080044config EFI_RUNTIME_MAP
45 bool "Export efi runtime maps to sysfs"
Dave Young2965faa2015-09-09 15:38:55 -070046 depends on X86 && EFI && KEXEC_CORE
Dave Young926172d2013-12-20 18:02:18 +080047 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
Mark Salter0302f712013-12-30 12:12:12 -050055config 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
Ard Biesheuvel022ee6c2014-06-26 12:09:05 +020062config EFI_RUNTIME_WRAPPERS
63 bool
64
Ard Biesheuvelf4f75ad52014-07-02 14:54:43 +020065config EFI_ARMSTUB
66 bool
67
Matt Fleming04851772013-02-08 15:48:51 +000068endmenu
Jan Beulichfce7d3b2013-12-16 14:39:40 +000069
70config UEFI_CPER
71 bool