efi_loader: add CONFIG_EFI_SECURE_BOOT config option
Under this configuration, UEFI secure boot support will be added
in later patches.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig
index c89ce85..1cfa24f 100644
--- a/lib/efi_loader/Kconfig
+++ b/lib/efi_loader/Kconfig
@@ -146,4 +146,22 @@
help
Full path of the initramfs file, e.g. mmc 0:2 initramfs.cpio.gz.
+config EFI_SECURE_BOOT
+ bool "Enable EFI secure boot support"
+ depends on EFI_LOADER
+ select SHA256
+ select RSA
+ select RSA_VERIFY_WITH_PKEY
+ select IMAGE_SIGN_INFO
+ select ASYMMETRIC_KEY_TYPE
+ select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
+ select X509_CERTIFICATE_PARSER
+ select PKCS7_MESSAGE_PARSER
+ default n
+ help
+ Select this option to enable EFI secure boot support.
+ Once SecureBoot mode is enforced, any EFI binary can run only if
+ it is signed with a trusted key. To do that, you need to install,
+ at least, PK, KEK and db.
+
endif