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[PATCH 0/2] powerpc-ieee1275: support larger core.elf images

From: Daniel Axtens
Subject: [PATCH 0/2] powerpc-ieee1275: support larger core.elf images
Date: Tue, 16 Nov 2021 14:42:03 +1100

Red Hat recently experienced an issue which I narrowed down to using a
grub core.elf image that was too big: the current limit is just under

These are two patches that fix the issue and attempt to future proof
the area.

With these patches, the maximum size will be:

 - SLOF, or PFW with the PowerPC IEEE1275 note: just under 8MB
 - PFW without the PowerPC IEEE1275 note: a bit under 4MB

As such, I recommend people building large grub images for Power
systems (such as secure bootable images) build with the PowerPC
IEEE1275 note from now on.

Daniel Axtens (2):
  powerpc-ieee1275: load grub at 8MB, not 2MB
  ieee1275: set real-base in the PowerPC IEEE1275 Note to 32MB

 grub-core/Makefile.core.def | 2 +-
 include/grub/offsets.h      | 2 +-
 util/grub-mkimagexx.c       | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)


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