ACK: [PULL v2][Trusty] arm64: EFI stub support

[Luis Henriques]

On Thu, Apr 23, 2015 at 08:49:48AM -0600, dann frazier wrote:
> This is a resubmittal of the arm64 EFI stub support changes.
> 
> v2 changes:
>      * Use git cherry-pick -x to generate clean cherry pick commits.
>      * Use "backported from" notation when cherry picks are not clean.
>      * Add a [Config] commit, generated by updateconfigs.
>      * Other than the config update, code is identical to the
>        arm64-efi branch from the initial submission.
> 

Thanks for resubmitting.

I spend some time reviewing this patchset and it looks sane to me.
Collin also did some smoke test in this v2 on some x86 EFI platforms
(thanks Collin!) and no regressions were found.

Although this a big patchset, and since it doesn't break non-EFI arm64
systems (as Dann's has tested this too), here's my:

Acked-by: Luis Henriques <luis.henriques at canonical.com>

Cheers,
--
Luís

> The following changes since commit ca13cad7da7caa499f54e2d2bd458b2441276fe1:
> 
>   Linux 3.13.11-ckt18 (2015-04-07 12:22:35 -0700)
> 
> are available in the git repository at:
> 
>   git://kernel.ubuntu.com/dannf/trusty-xgene.git arm64-efi-cleaner
> 
> for you to fetch changes up to 54216ebf255273dcefba57b49569b63651b5e9da:
> 
>   arm64: efi: only attempt efi map setup if booting via EFI (2015-04-23 08:23:23 -0600)
> 
> ----------------------------------------------------------------
> Ard Biesheuvel (1):
>       efi/arm64: ignore dtb= when UEFI SecureBoot is enabled
> 
> Leif Lindholm (2):
>       doc: arm: add UEFI support documentation
>       arm64: efi: only attempt efi map setup if booting via EFI
> 
> Marc Zyngier (1):
>       arm64: fixmap: fix missing sub-page offset for earlyprintk
> 
> Mark Salter (11):
>       add generic fixmap.h
>       mm: create generic early_ioremap() support
>       arm64: initialize pgprot info earlier in boot
>       arm64: add early_ioremap support
>       efi: create memory map iteration helper
>       lib: add fdt_empty_tree.c
>       efi: add helper function to get UEFI params from FDT
>       arm64: Add function to create identity mappings
>       arm64: add EFI runtime services
>       arm64: efi: add EFI stub
>       doc: arm64: add description of EFI stub support
> 
> Roy Franz (3):
>       efi: Add get_dram_base() helper function
>       doc: efi-stub.txt updates for ARM
>       efi: Add shared FDT related functions for ARM/ARM64
> 
> dann frazier (3):
>       UBUNTU: [Config] CONFIG_{EFI_PARAMS_FROM_FDT,GENERIC_EARLY_IOREMAP,LIBFDT}=y
>       UBUNTU: Move get_dram_base to arm private file
>       UBUNTU: arm64: Implement efi_enabled()
> 
>  Documentation/arm/00-INDEX                |   2 +
>  Documentation/arm/uefi.txt                |  64 ++++
>  Documentation/arm64/booting.txt           |   4 +
>  Documentation/arm64/memory.txt            |   4 +-
>  Documentation/efi-stub.txt                |  33 ++-
>  arch/arm64/Kconfig                        |  17 ++
>  arch/arm64/include/asm/Kbuild             |   1 +
>  arch/arm64/include/asm/efi.h              |  15 +
>  arch/arm64/include/asm/fixmap.h           |  67 +++++
>  arch/arm64/include/asm/io.h               |   1 +
>  arch/arm64/include/asm/memory.h           |   2 +-
>  arch/arm64/include/asm/mmu.h              |   3 +
>  arch/arm64/kernel/Makefile                |   3 +
>  arch/arm64/kernel/early_printk.c          |   4 +-
>  arch/arm64/kernel/efi-entry.S             | 109 +++++++
>  arch/arm64/kernel/efi-stub.c              |  87 ++++++
>  arch/arm64/kernel/efi.c                   | 478 ++++++++++++++++++++++++++++++
>  arch/arm64/kernel/head.S                  | 121 +++++++-
>  arch/arm64/kernel/setup.c                 |   9 +
>  arch/arm64/mm/ioremap.c                   |  86 +++++-
>  arch/arm64/mm/mmu.c                       |  99 +++----
>  debian.master/config/config.common.ubuntu |   3 +
>  drivers/firmware/efi/Kconfig              |   7 +
>  drivers/firmware/efi/arm-stub.c           | 291 ++++++++++++++++++
>  drivers/firmware/efi/efi-stub-helper.c    |   7 +
>  drivers/firmware/efi/efi.c                |  79 +++++
>  drivers/firmware/efi/fdt.c                | 285 ++++++++++++++++++
>  include/asm-generic/early_ioremap.h       |  42 +++
>  include/asm-generic/fixmap.h              | 100 +++++++
>  include/linux/efi.h                       |  20 +-
>  lib/Makefile                              |   3 +-
>  lib/fdt_empty_tree.c                      |   2 +
>  mm/Kconfig                                |   3 +
>  mm/Makefile                               |   1 +
>  mm/early_ioremap.c                        | 245 +++++++++++++++
>  35 files changed, 2221 insertions(+), 76 deletions(-)
>  create mode 100644 Documentation/arm/uefi.txt
>  create mode 100644 arch/arm64/include/asm/efi.h
>  create mode 100644 arch/arm64/include/asm/fixmap.h
>  create mode 100644 arch/arm64/kernel/efi-entry.S
>  create mode 100644 arch/arm64/kernel/efi-stub.c
>  create mode 100644 arch/arm64/kernel/efi.c
>  create mode 100644 drivers/firmware/efi/arm-stub.c
>  create mode 100644 drivers/firmware/efi/fdt.c
>  create mode 100644 include/asm-generic/early_ioremap.h
>  create mode 100644 include/asm-generic/fixmap.h
>  create mode 100644 lib/fdt_empty_tree.c
>  create mode 100644 mm/early_ioremap.c
> 
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