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| author | Tom Gundersen <teg@jklm.no> | 2013-02-08 15:37:06 +0000 |
|---|---|---|
| committer | Matt Fleming <matt.fleming@intel.com> | 2013-04-17 13:27:06 +0100 |
| commit | a9499fa7cd3fd4824a7202d00c766b269fa3bda6 (patch) | |
| tree | 02d1ba3dcf46f6dd1765ef645b223ea0d4758ae6 /fs/efivarfs | |
| parent | d68772b7c83f4b518be15ae96f4827c8ed02f684 (diff) | |
| download | linux-a9499fa7cd3fd4824a7202d00c766b269fa3bda6.tar.gz linux-a9499fa7cd3fd4824a7202d00c766b269fa3bda6.tar.bz2 linux-a9499fa7cd3fd4824a7202d00c766b269fa3bda6.zip | |
efi: split efisubsystem from efivars
This registers /sys/firmware/efi/{,systab,efivars/} whenever EFI is enabled
and the system is booted with EFI.
This allows
*) userspace to check for the existence of /sys/firmware/efi as a way
to determine whether or it is running on an EFI system.
*) 'mount -t efivarfs none /sys/firmware/efi/efivars' without manually
loading any modules.
[ Also, move the efivar API into vars.c and unconditionally compile it.
This allows us to move efivars.c, which now only contains the sysfs
variable code, into the firmware/efi directory. Note that the efivars.c
filename is kept to maintain backwards compatability with the old
efivars.ko module. With this patch it is now possible for efivarfs
to be built without CONFIG_EFI_VARS - Matt ]
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Mike Waychison <mikew@google.com>
Cc: Kay Sievers <kay@vrfy.org>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Chun-Yi Lee <jlee@suse.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Tobias Powalowski <tpowa@archlinux.org>
Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'fs/efivarfs')
| -rw-r--r-- | fs/efivarfs/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/efivarfs/Kconfig b/fs/efivarfs/Kconfig index 1fb2b7f849f3..367bbb10c543 100644 --- a/fs/efivarfs/Kconfig +++ b/fs/efivarfs/Kconfig @@ -1,6 +1,6 @@ config EFIVAR_FS tristate "EFI Variable filesystem" - depends on EFI_VARS + depends on EFI help efivarfs is a replacement filesystem for the old EFI variable support via sysfs, as it doesn't suffer from the |