[GIT PULL] UEFI support for 32-bit ARM

[Ard Biesheuvel]

On 14 December 2015 at 18:10, Ard Biesheuvel <ard.biesheuvel at linaro.org> wrote:
> 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.
>

Russell,

Could you please indicate whether or not, and when you intend to pull
these changes?

All prerequisites are in, including the arm64 changes that Will has
queued for 4.5

Thanks,
Ard.



> 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