[PATCH 0/3] efi: Simply DT handoff from stub to kernel

[Ard Biesheuvel <ardb@kernel.org>]

Currently, 4 separate DT properties are used as an internal ABI to hand
over the EFI memory map from the EFI stub to the kernel proper.

This information is redundant, as the same information is already made
available via a EFI configuration table.

So replace those 4 DT properties with a single one that carries the
address of this config table, and make it optional, so that it can be
omitted in cases where the kernel is able to locate the table directly
via its GUID.

Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: loongarch@lists.linux.dev

Ard Biesheuvel (3):
  efi: Turn boot memmap handling into shared code
  efi: Pass EFI boot memmap struct address to core kernel
  efi: Make the 'linux,uefi-boot-memmap' DT property optional

 Documentation/arch/arm/uefi.rst    | 10 +--
 arch/loongarch/kernel/efi.c        | 10 +--
 drivers/firmware/efi/efi.c         |  4 +
 drivers/firmware/efi/fdtparams.c   | 77 ++++++++++++++++++--
 drivers/firmware/efi/libstub/fdt.c | 40 +---------
 include/linux/efi.h                |  3 +
 6 files changed, 84 insertions(+), 60 deletions(-)

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2.47.3