[U-Boot] [PATCH v4 00/14] efi: x86: Add EFI hello world and loader support for x86

[Simon Glass]

This series adds EFI loader support for x86. Since U-Boot already supports
running as an EFI app (and as a payload) this is relatively
straightforward, requiring just moving files into place and updating a few
compiler flags.

One problem with the EFI loader is that it lacks even rudimentary test
support within U-Boot. At present the only way to test it is to boot an
EFI application. As a step towards correcting this, this series also adds
support for a 'hello world' test program which can be used to make sure
that EFI loader support works correctly on a supported architecture. It is
only a very simple program (it makes just two API calls!) but it does
provide a sanity check and can be expanded as needed.

No attempt is made to create a pytest with this, but it should be fairly
straightforward to do so.

Changes in v4:
- Move hello world test program into new patch
- Add new patch to add EFI app support
- Add new patch to add EFI app support on aarch64
- Use the build-generated 'hello world' program instead of a binary blob
- Add new patch to adjust EFI files support efi_loader
- Drop the binary 'hello world' program

Changes in v3:
- Include a link to the program instead of adding it to the tree
- Fix several typos
- Align backslashes to the same column

Changes in v2:
- Add new patch to tidy up selection of building the EFI stub
- Remove EFI support from README.x86 TODO list

Simon Glass (14):
  x86: Correct a build warning in x86 tables
  efi: Correct cache flush alignment
  efi: Fix debug message address format
  x86: Tidy up selection of building the EFI stub
  efi: Makefile: Export variables for use with EFI
  efi: Add support for a hello world test program
  elf: arm: Add a few ARM relocation types
  efi: arm: Add EFI app support
  efi: arm: Add aarch64 EFI app support
  efi: arm: Enable the hello world test program
  x86: Move efi .lds files into the 'lib' directory
  x86: Move efi .S files into the 'lib' directory
  efi: x86: Adjust EFI files support efi_loader
  x86: Enable EFI loader support

 Makefile                                           |  11 +-
 arch/arm/config.mk                                 |   7 ++
 arch/arm/cpu/armv8/config.mk                       |   4 +
 arch/arm/lib/Makefile                              |  10 ++
 arch/arm/lib/crt0_aarch64_efi.S                    | 135 ++++++++++++++++++++
 arch/arm/lib/crt0_arm_efi.S                        | 138 +++++++++++++++++++++
 arch/arm/lib/elf_aarch64_efi.lds                   |  70 +++++++++++
 arch/arm/lib/elf_arm_efi.lds                       |  70 +++++++++++
 arch/arm/lib/reloc_aarch64_efi.c                   |  87 +++++++++++++
 arch/arm/lib/reloc_arm_efi.c                       |  66 ++++++++++
 arch/arm/lib/relocate.S                            |   3 +-
 arch/arm/lib/relocate_64.S                         |   3 +-
 arch/x86/config.mk                                 |  20 ++-
 arch/x86/lib/Makefile                              |  23 ++++
 .../lib/{efi/crt0-efi-ia32.S => crt0_ia32_efi.S}   |   0
 .../{efi/crt0-efi-x86_64.S => crt0_x86_64_efi.S}   |   0
 arch/x86/lib/efi/Makefile                          |  18 ---
 arch/x86/{cpu/efi => lib}/elf_ia32_efi.lds         |   2 -
 arch/x86/{cpu/efi => lib}/elf_x86_64_efi.lds       |   2 -
 .../x86/lib/{efi/reloc_ia32.c => reloc_ia32_efi.c} |   0
 .../lib/{efi/reloc_x86_64.c => reloc_x86_64_efi.c} |   0
 arch/x86/lib/tables.c                              |   2 +
 cmd/Kconfig                                        |  10 ++
 cmd/bootefi.c                                      |  29 +++--
 configs/efi-x86_defconfig                          |   1 +
 configs/qemu-x86_efi_payload64_defconfig           |   1 +
 configs/stm32f429-discovery_defconfig              |   1 +
 doc/README.efi                                     |  22 ++++
 doc/README.x86                                     |   1 -
 include/asm-generic/sections.h                     |   2 +
 include/efi.h                                      |   7 +-
 include/elf.h                                      |  13 ++
 lib/efi/Makefile                                   |   4 +-
 lib/efi_loader/Kconfig                             |   2 +-
 lib/efi_loader/Makefile                            |   4 +
 lib/efi_loader/efi_image_loader.c                  |   3 +-
 lib/efi_loader/helloworld.c                        |  24 ++++
 scripts/Makefile.lib                               |  33 +++++
 38 files changed, 787 insertions(+), 41 deletions(-)
 create mode 100644 arch/arm/lib/crt0_aarch64_efi.S
 create mode 100644 arch/arm/lib/crt0_arm_efi.S
 create mode 100644 arch/arm/lib/elf_aarch64_efi.lds
 create mode 100644 arch/arm/lib/elf_arm_efi.lds
 create mode 100644 arch/arm/lib/reloc_aarch64_efi.c
 create mode 100644 arch/arm/lib/reloc_arm_efi.c
 rename arch/x86/lib/{efi/crt0-efi-ia32.S => crt0_ia32_efi.S} (100%)
 rename arch/x86/lib/{efi/crt0-efi-x86_64.S => crt0_x86_64_efi.S} (100%)
 rename arch/x86/{cpu/efi => lib}/elf_ia32_efi.lds (98%)
 rename arch/x86/{cpu/efi => lib}/elf_x86_64_efi.lds (98%)
 rename arch/x86/lib/{efi/reloc_ia32.c => reloc_ia32_efi.c} (100%)
 rename arch/x86/lib/{efi/reloc_x86_64.c => reloc_x86_64_efi.c} (100%)
 create mode 100644 lib/efi_loader/helloworld.c

-- 
2.8.0.rc3.226.g39d4020