On Fri, Jun 16, 2023 at 01:34:21PM +0200, Stefan Herbrechtsmeier wrote:
From: Stefan Herbrechtsmeier stefan.herbrechtsmeier@weidmueller.com
Currently, the mkeficapsule tool supports at most one payload inside the capsule. However, the UEFI specification and the u-boot code support multiple payloads inside one capsule. Extend the tool by this feature. The tool is kept backwards-compatible, so it can still be used and called exactly as before if desired.
One of reasons why only a single image be included is that I didn't see any strong reason to do so because U-Boot already has an archive format of multiple images, named FIT. I wanted to utilize the existing framework which is widely used on U-Boot and the current implementation of FMP supports this format. It seems to be just enough.
Do you have any useful use case of multiple images?
-Takahiro Akashi
Malte Schmidt (5): mkeficapsule: constify function parameters mkeficapsule: add support for multiple payloads inside capsule test: efi_capsule: test a capsule update containing multiple images doc: uefi: update mkeficapsule documentation doc: uefi: clarify capsule concept
doc/develop/uefi/uefi.rst | 73 +- test/py/tests/test_efi_capsule/conftest.py | 18 +- .../test_capsule_firmware_raw.py | 46 +- .../test_capsule_firmware_signed_raw.py | 24 +- tools/eficapsule.h | 5 - tools/mkeficapsule.c | 651 +++++++++++++----- 6 files changed, 622 insertions(+), 195 deletions(-)
-- 2.30.2