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3 commits

Author SHA1 Message Date
Heinrich Schuchardt
7dda16343d efi_loader: pre-seed UEFI variables 
Include a file with the initial values for non-volatile UEFI variables
into the U-Boot binary. If this variable is set, changes to variable PK
will not be allowed.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
 2020-07-16 12:37:02 +02:00
Heinrich Schuchardt
b02a707152 efi_loader: enable UEFI variables at runtime 
Enable UEFI variables at runtime.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
 2020-07-11 23:14:17 +02:00
Heinrich Schuchardt
5f7dcf079d efi_loader: UEFI variable persistence 
Persist non-volatile UEFI variables in a file on the EFI system partition.

The file is written whenever a non-volatile UEFI variable is changed after
initialization of the UEFI sub-system.

The file is read during the UEFI sub-system initialization to restore
non-volatile UEFI variables.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
 2020-07-11 23:14:17 +02:00