[GIT PULL] UEFI support for 32-bit ARM

[Ard Biesheuvel]

Hello all,

NOTE: this pull request is based on a stable, shared branch published
by the arm64 maintainers. This means that pulling the
arm32-efi-for-v4.5 tag will pull the following patches along with the
patches listed below:

f7d924894265 arm64/efi: refactor EFI init and runtime code for reuse
by 32-bit ARM
e5bc22a42e4d arm64/efi: split off EFI init and runtime code for reuse
by 32-bit ARM
4dffbfc48d65 arm64/efi: mark UEFI reserved regions as MEMBLOCK_NOMAP
68709f45385a arm64: only consider memblocks with NOMAP cleared for
linear mapping
bf3d3cc580f9 mm/memblock: add MEMBLOCK_NOMAP attribute to memblock memory table

@Will: please advise when you intend to send these to -next. Thanks.

The following changes since commit f7d924894265794f447ea799dd853400749b5a22:

  arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM
  (2015-12-09 16:57:23 +0000)

are available in the git repository at:

  git://git.linaro.org/people/ard.biesheuvel/linux-arm.git \
  tags/arm32-efi-for-v4.5

for you to fetch changes up to 81a0bc39ea1960bbf8ece6a895d7cfd2d9efa28a:

  ARM: add UEFI stub support (2015-12-14 10:38:21 +0100)

----------------------------------------------------------------
This implements UEFI kernel support for 32-bit ARM, based on the existing
arm64 support and existing generic early ioremap support. It is based on
commit f7d924894265 ("arm64/efi: refactor EFI init and runtime code for
reuse by 32-bit ARM"), which was pulled from the arm64 repo [1] as branch
'aarch64/efi'

[1] git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git

----------------------------------------------------------------

Weblink:
http://thread.gmane.org/gmane.linux.kernel.mm/142134

Repo browse link:
http://git.linaro.org/people/ard.biesheuvel/linux-arm.git/shortlog/refs/tags/arm32-efi-for-v4.5

Regression test results:
http://kernelci.org/build/ardb/kernel/v4.4-rc3-13-g81a0bc39ea19/

Ard Biesheuvel (7):
      ARM: add support for generic early_ioremap/early_memremap
      ARM: split off core mapping logic from create_mapping
      ARM: factor out allocation routine from __create_mapping()
      ARM: add support for non-global kernel mappings
      ARM: implement create_mapping_late() for EFI use
      ARM: only consider memblocks with NOMAP cleared for linear mapping
      ARM: wire up UEFI init and runtime support

Roy Franz (1):
      ARM: add UEFI stub support

 arch/arm/Kconfig                          |  20 +++++
 arch/arm/boot/compressed/Makefile         |   4 +-
 arch/arm/boot/compressed/efi-header.S     | 130 ++++++++++++++++++++++++++++++
 arch/arm/boot/compressed/head.S           |  54 ++++++++++++-
 arch/arm/boot/compressed/vmlinux.lds.S    |   7 ++
 arch/arm/include/asm/Kbuild               |   1 +
 arch/arm/include/asm/efi.h                |  83 +++++++++++++++++++
 arch/arm/include/asm/fixmap.h             |  29 ++++++-
 arch/arm/include/asm/mach/map.h           |   2 +
 arch/arm/include/asm/mmu_context.h        |   2 +-
 arch/arm/kernel/Makefile                  |   1 +
 arch/arm/kernel/efi.c                     |  38 +++++++++
 arch/arm/kernel/setup.c                   |  10 ++-
 arch/arm/mm/init.c                        |   5 +-
 arch/arm/mm/ioremap.c                     |   9 +++
 arch/arm/mm/mmu.c                         | 128 +++++++++++++++++++----------
 drivers/firmware/efi/Makefile             |   1 +
 drivers/firmware/efi/libstub/Makefile     |   9 +++
 drivers/firmware/efi/libstub/arm-stub.c   |   4 +-
 drivers/firmware/efi/libstub/arm32-stub.c |  85 +++++++++++++++++++
 20 files changed, 572 insertions(+), 50 deletions(-)
 create mode 100644 arch/arm/boot/compressed/efi-header.S
 create mode 100644 arch/arm/include/asm/efi.h
 create mode 100644 arch/arm/kernel/efi.c
 create mode 100644 drivers/firmware/efi/libstub/arm32-stub.c