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efi: Correct dependency on FIT_SIGNATURE

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At present EFI_SECURE BOOT selects RSA but does not necessarily enable
FIT_SIGNATURE. Mostly this is fine, but a few boards do not enable it,
so U-Boot tries to do RSA verification when loading FIT images, but it
is not enabled.

This worked because the condition for checking the RSA signature is
wrong in the fit_image_verify_with_data() function. In order to fix it
we need to fix this dependency. Make sure that FIT_SIGNATURE is enabled
so that RSA can be used.

It might be better to avoid using 'select' in this situation.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2021-09-25 19:43:29 -06:00
committed by Tom Rini
parent fa13940740
commit 1eccbb16a2
1 changed files with 1 additions and 1 deletions
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lib/efi_loader/Kconfig
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@@ -336,7 +336,7 @@ config EFI_LOAD_FILE2_INITRD
config EFI_SECURE_BOOT
bool "Enable EFI secure boot support"
depends on EFI_LOADER
depends on EFI_LOADER && FIT_SIGNATURE
select HASH
select SHA256
select RSA