1*04851772SMatt Flemingmenu "EFI (Extensible Firmware Interface) Support" 2*04851772SMatt Fleming depends on EFI 3*04851772SMatt Fleming 4*04851772SMatt Flemingconfig EFI_VARS 5*04851772SMatt Fleming tristate "EFI Variable Support via sysfs" 6*04851772SMatt Fleming depends on EFI 7*04851772SMatt Fleming default n 8*04851772SMatt Fleming help 9*04851772SMatt Fleming If you say Y here, you are able to get EFI (Extensible Firmware 10*04851772SMatt Fleming Interface) variable information via sysfs. You may read, 11*04851772SMatt Fleming write, create, and destroy EFI variables through this interface. 12*04851772SMatt Fleming 13*04851772SMatt Fleming Note that using this driver in concert with efibootmgr requires 14*04851772SMatt Fleming at least test release version 0.5.0-test3 or later, which is 15*04851772SMatt Fleming available from Matt Domsch's website located at: 16*04851772SMatt Fleming <http://linux.dell.com/efibootmgr/testing/efibootmgr-0.5.0-test3.tar.gz> 17*04851772SMatt Fleming 18*04851772SMatt Fleming Subsequent efibootmgr releases may be found at: 19*04851772SMatt Fleming <http://linux.dell.com/efibootmgr> 20*04851772SMatt Fleming 21*04851772SMatt Flemingconfig EFI_VARS_PSTORE 22*04851772SMatt Fleming tristate "Register efivars backend for pstore" 23*04851772SMatt Fleming depends on EFI_VARS && PSTORE 24*04851772SMatt Fleming default y 25*04851772SMatt Fleming help 26*04851772SMatt Fleming Say Y here to enable use efivars as a backend to pstore. This 27*04851772SMatt Fleming will allow writing console messages, crash dumps, or anything 28*04851772SMatt Fleming else supported by pstore to EFI variables. 29*04851772SMatt Fleming 30*04851772SMatt Flemingconfig EFI_VARS_PSTORE_DEFAULT_DISABLE 31*04851772SMatt Fleming bool "Disable using efivars as a pstore backend by default" 32*04851772SMatt Fleming depends on EFI_VARS_PSTORE 33*04851772SMatt Fleming default n 34*04851772SMatt Fleming help 35*04851772SMatt Fleming Saying Y here will disable the use of efivars as a storage 36*04851772SMatt Fleming backend for pstore by default. This setting can be overridden 37*04851772SMatt Fleming using the efivars module's pstore_disable parameter. 38*04851772SMatt Fleming 39*04851772SMatt Flemingendmenu 40