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The LoadImage() provided by the shim does not consult MOK when loading an image. So, simply signature verification fails when it should not. This means we cannot use Linux EFI stub to start the kernel when the shim is loaded. We have to fallback to legacy mode on x86 architectures. This is not possible on other architectures due to lack of legacy mode. This is workaround which should disappear when the shim provides LoadImage() which looks up MOK during signature verification. On the occasion align constants in include/grub/efi/sb.h. Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'