[PATCH v2 00/17] Support android boot image v3/v4

Safae Ouajih
2023-01-26T16:05:26Z

Hello everyone,

* This is based on Roman Stratiienko's work to support boot image header version 3 and 4.

* This supports the new boot image headers v3, v4 and bootconfig feature.
https://source.android.com/docs/core/architecture/bootloader/boot-image-header
https://source.android.com/docs/core/architecture/bootloader/implementing-bootconfig

- Tested on Amlogic Khadas vim3l, a reference board for Android Open Source Project
https://www.khadas.com/vim3l

And on AM625 Texas Instruments board with 5.10 linux kernel

Main changes :
- New partition : vendor boot, with a specific vendor ramdisk
- DTB is stored in the vendor boot partition
- The generic ramdisk is placed after the vendor ramdisk
- Bootconfig feature support

Here is a link to see the related android boot flow changes on KHADAS vim3l as an example:
https://gitlab.baylibre.com/baylibre/amlogic/atv/u-boot/-/commits/souajih/BootImagev4/

Changes in v2:
- Rework parts of the code to fix the abootimg test: test_abootimg
- Update test_abootimg to support boot image header v4
- Remove LIBXBC library, import and adapt the functions to support bootconfig feature
- Rename the used structures :
andr_boot_img_hdr_v0_v1_v2 -> andr_boot_img_hdr_v0
andr_boot_img_hdr_v3_v4 -> andr_boot_img_hdr_v3
andr_vendor_boot_img_hdr_v3_v4 -> andr_vendor_img_hdr

Safae Ouajih (17):
android: boot: rename andr_img_hdr -> andr_boot_img_hdr_v0
android: boot: support vendor boot image in abootimg
android: boot: replace android_image_check_header
android: boot: add boot image header v3 and v4 structures
android: boot: kcomp: support andr_image_data
android: boot: move to andr_image_data structure
android: boot: content print is not supported for v3,v4 header version
android: boot: boot image header v3,v4 do not support recovery DTBO
android: boot: add vendor boot image to prepare for v3,v4 support
android: boot: update android_image_get_data to support v3,v4
android: boot: ramdisk: support vendor ramdisk
android: boot: support extra command line
android: boot: update android_image_get_dtb_img_addr to support v3,v4
drivers: fastboot: zImage flashing is not supported for v3,v4
android: boot: support boot image header version 3 and 4
android: boot: support bootconfig
test/py: android: extend abootimg test

boot/bootm.c | 29 +-
boot/image-android.c | 467 ++++++++++++++++----
boot/image-board.c | 15 +-
boot/image-fdt.c | 5 +-
cmd/abootimg.c | 75 +++-
drivers/fastboot/fb_mmc.c | 19 +-
include/android_image.h | 228 +++++++++-
include/image.h | 37 +-
test/py/tests/test_android/test_abootimg.py | 135 +++++-
9 files changed, 850 insertions(+), 160 deletions(-)

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2.34.1