This patch set depends on another series: "[PATCH v3 00/14] Support Firmware Handoff spec via bloblist".
This patch set implements Qemu-Arm platform custom functions to retrieve the bloblist (aka. Transfer List) from previous loader via boot arguments when CONFIG_OF_BOARD option is enabled and all boot arguments are compliant to the register conventions defined in the Firmware Handoff spec v0.9.
Qemu-Arm platform custom function will load the FDT from the bloblist if it exists. Otherwise it fallbacks to get the FDT from the specified memory address.
If a platform vendor wish to have different behaviors for loading bloblist or FDT from the previous boot stage, it is required to implement the custom functions board_bloblist_from_boot_arg() and board_fdt_blob_setup().
Raymond Mao (9): bloblist: add API to check the register conventions bloblist: check bloblist with specified buffer size bloblist: refactor of bloblist_reloc() arm: armv7: save boot arguments arm: armv8: save boot arguments qemu-arm: Get bloblist from boot arguments bloblist: Load the bloblist from the previous loader fdt: update the document and Kconfig description qemu-arm: get FDT from bloblist
arch/arm/cpu/armv7/start.S | 13 ++++++ arch/arm/cpu/armv8/start.S | 14 ++++++ board/emulation/qemu-arm/qemu-arm.c | 42 ++++++++++++++++- common/bloblist.c | 72 ++++++++++++++++++++--------- common/board_f.c | 8 +--- configs/qemu_arm64_defconfig | 3 ++ doc/develop/devicetree/control.rst | 6 +-- dts/Kconfig | 7 ++- include/bloblist.h | 36 +++++++++++++-- test/bloblist.c | 8 ++-- 10 files changed, 166 insertions(+), 43 deletions(-)