[PATCH v2 00/12] cmd: bootefi: refactor the code for bootmgr

[AKASHI Takahiro]

This patch set is motivated by the discussion[1] regarding
CONFIG_BOOTEFI_BOOTMGR option.

At the end, bootefi.c will be decomposed into two parts, one for
providing the command itself and one for implementing helper functions.
EFI_LOADER will now be available without CONFIG_CMDLINE or specifically
CONFIG_CMD_BOOTEFI if invoked via bootmeth/bootstd.

Then, EFI_LOADER library side will be further split into two options
for fine-grain control:
CONFIG_EFI_BINARY_EXEC: execute UEFI binaries which are to be explicitly
    loaded by U-Boot's load commands/functions or other methods
    (like a jtag debugger?)
    It supports bootmeth_efi as well as "bootefi <addr>|hello"(/"bootm"?).

CONFIG_EFI_BOOTMGR: provide EFI boot manger functionality
    It supports bootmeth_efi_mgr as well as "bootefi bootmgr".

As such, We will no longer need CONFIG_EFI_BINARY_EXEC if we want to only
make use of the UEFI boot manger for booting a next stage OS.

Prerequisite
============
This patch set is based on top of Tom's "next" branch.

Patches
=======
Patch#1-#12: I hope that those commits show step-by-step refactoring
    without introducing degradation.

Tests
=====
* run UT efi_selftest on sandbox locally
* run test_efi_bootmgr on sandbox locally

Unfortunately, I could not submit a pull request for CI test.

Changes
=======
v2 (Nov 21, 2023)
* rebased onto Tom's next branch
* remove already merged commits
* revise commit messages
* add patch #5 which was split from ex-patch#5
RFC (Oct 26, 2023)

[1] https://lists.denx.de/pipermail/u-boot/2023-October/534598.html

AKASHI Takahiro (12):
  cmd: bootefi: unfold do_bootefi_image()
  cmd: bootefi: re-organize do_bootefi()
  cmd: bootefi: carve out EFI boot manager interface
  cmd: bootefi: carve out binary execution interface
  cmd: bootefi: localize global device paths for efi_selftest
  cmd: bootefi: move library interfaces under lib/efi_loader
  cmd: efidebug: ease efi configuration dependency
  bootmeth: use efi_loader interfaces instead of bootefi command
  efi_loader: split unrelated code from efi_bootmgr.c
  efi_loader: rename BOOTEFI_BOOTMGR to EFI_BOOTMGR
  net: tftp: remove explicit efi configuration dependency
  fs: remove explicit efi configuration dependency

 boot/Kconfig                     |   4 +-
 boot/Makefile                    |   2 +-
 boot/bootm_os.c                  |  31 +-
 boot/bootmeth_efi.c              |   8 +-
 boot/bootmeth_efi_mgr.c          |   2 +-
 cmd/Kconfig                      |  21 +-
 cmd/bootefi.c                    | 670 +++++--------------------------
 cmd/efidebug.c                   |   4 +-
 fs/fs.c                          |   7 +-
 include/efi_loader.h             |  34 +-
 lib/efi_loader/Kconfig           |  11 +-
 lib/efi_loader/Makefile          |   2 +-
 lib/efi_loader/efi_bootmgr.c     |  37 ++
 lib/efi_loader/efi_device_path.c |   3 +-
 lib/efi_loader/efi_helper.c      | 498 ++++++++++++++++++++++-
 net/tftp.c                       |  10 +-
 test/boot/bootflow.c             |   2 +-
 17 files changed, 700 insertions(+), 646 deletions(-)

-- 
2.34.1