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>
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index f81ec8d..441ac94 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -6,7 +6,7 @@
# This file only gets included with CONFIG_EFI_LOADER set, so all
# object inclusion implicitly depends on it
-asflags-y += -DHOST_ARCH="$(HOST_ARCH)"
+asflags-y += -DHOST_ARCH="$(HOST_ARCH)" -I.
ccflags-y += -DHOST_ARCH="$(HOST_ARCH)"
CFLAGS_efi_boottime.o += \
@@ -42,6 +42,7 @@
else
obj-y += efi_variable.o
obj-y += efi_var_file.o
+obj-$(CONFIG_EFI_VARIABLES_PRESEED) += efi_var_seed.o
endif
obj-y += efi_watchdog.o
obj-$(CONFIG_LCD) += efi_gop.o
@@ -53,3 +54,6 @@
obj-$(CONFIG_EFI_RNG_PROTOCOL) += efi_rng.o
obj-$(CONFIG_EFI_LOAD_FILE2_INITRD) += efi_load_initrd.o
obj-y += efi_signature.o
+
+EFI_VAR_SEED_FILE := $(subst $\",,$(CONFIG_EFI_VAR_SEED_FILE))
+$(obj)/efi_var_seed.o: $(srctree)/$(EFI_VAR_SEED_FILE)