efivar: add recipe
efivar is is a tool to manipulate UEFI variables.
This is obviously useful only for EFI machines that have
the efivarfs interface enabled in the kernel config (CONFIG_EFIVAR_FS),
and mounted (mount -t efivarfs efivarfs /sys/firmware/efi/efivars).
Sample usage:
GUID:
4a67b082-0a4c-41cf-b6c7-
440b29bb8c4f
Name: "LoaderEntrySelected"
Attributes:
Boot Service Access
Runtime Service Access
Value:
00000000 62 00 6f 00 6f 00 74 00 00 00 |b.o.o.t... |
(From meta-openembedded rev:
24afc0aaa5c6018624f4e0ed7b0ae530ae6e0936)
Signed-off-by: Stefan Stanacar <stefanx.stanacar@intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>