On Thu, Feb 13, 2020 at 03:59:27PM +0100, Ard Biesheuvel wrote: > Currently, mixed mode is closely tied to the EFI handover protocol > and relies on intimate knowledge of the bootparams structure, setup > header etc, all of which are rather byzantine and entirely specific > to x86. > > Even though no other EFI supported architectures are currently known > that could support something like mixed mode, it makes sense to > abstract a bit from this, and make it part of a generic Linux on EFI > boot protocol. > > To that end, add a .compat section to the mixed mode binary, and populate > it with the PE machine type and entry point address, allowing firmware > implementations to match it to their native machine type, and invoke > non-native binaries using a secondary entry point. This patch refers to efi32_pe_entry which is only defined in the next one.
