[PATCH v3 0/4] bootstd: Support scripts in raw partitions

[He Yong <hyyoxhk@163.com>]

This series adds a script_raw bootmeth for U-Boot script images stored
at the start of a named partition, without a filesystem or a board-specific
bootcmd. It supports legacy scripts and FIT scripts with embedded data.
Image reads are bounded by the partition size and a configurable limit.

The raw and filesystem script bootmeths share the execution handler and
script parser. For known-size FIT scripts, the parser passes the buffer
size to fit_check_format() and rejects external data before verification.
The existing FIT_FULL_CHECK configuration controls full structural checks.

Changes since v2:
- Split the series into shared FIT validation, execution-handler export,
  the raw bootmeth, and sandbox tests.
- Drop the legacy parser bounds-check changes from this series.
- Move known-size FIT validation and external-data rejection into the
  shared script parser, with tests for both verify settings and source.
- Bind script_raw inside its C test, following bootflow_rauc(), so existing
  bootmeth lists and bootflow tests stay unchanged, including -G coverage.
- Label each expected C error with its corresponding Python case name.
- Reuse fs_helper.setup_image() with an sfdisk partition specification and
  generate the disk from test_ut_dm_init_bootstd(), avoiding sgdisk and a
  separate initialization test.
- Preserve the CONFIG_SANDBOX comment and clear verify on helper failure.

Validation on this revision:
- Sandbox build: make O=build-sandbox -j8
- Sandbox pytest: 3 passed (bootstd image initialization,
  image_fit_script_bounds and bootflow_script_raw)

Previous version:
https://www.mail-archive.com/u-boot@lists.u-boot-project.org/msg09207.html

He Yong (4):
  image: Bound FIT script checks by the image size
  bootstd: Export the script bootflow execution handler
  bootstd: Add a bootmeth for scripts in raw partitions
  test: bootstd: Cover scripts in raw partitions on sandbox

 MAINTAINERS                           |   1 +
 arch/sandbox/dts/test.dts             |   8 ++
 boot/Kconfig                          |  26 +++++
 boot/Makefile                         |   1 +
 boot/bootmeth_script.c                |   4 +-
 boot/bootmeth_script_raw.c            | 152 ++++++++++++++++++++++++++
 boot/image-board.c                    |  19 +++-
 configs/sandbox_defconfig             |   1 +
 doc/develop/bootstd/index.rst         |   1 +
 doc/develop/bootstd/script_raw.rst    |  51 +++++++++
 doc/device-tree-bindings/bootmeth.txt |   1 +
 include/bootmeth.h                    |  12 ++
 test/boot/bootflow.c                  |  81 ++++++++++++++
 test/boot/image.c                     | 118 ++++++++++++++++++++
 test/py/img/__init__.py               |   2 +
 test/py/img/script_raw.py             |  98 +++++++++++++++++
 test/py/tests/fs_helper.py            |  19 ++--
 test/py/tests/test_ut.py              |   3 +
 18 files changed, 588 insertions(+), 10 deletions(-)
 create mode 100644 boot/bootmeth_script_raw.c
 create mode 100644 doc/develop/bootstd/script_raw.rst
 create mode 100644 test/py/img/__init__.py
 create mode 100644 test/py/img/script_raw.py


base-commit: 0a55b098d6f5f6bafa84fc2f18b433dd167bf729
-- 
2.43.0