u-boot.git/common/bloblist.c, branch main

bloblist: Rework bloblist_init and bloblist_maybe_init

2026-06-02T15:30:28Z

With bloblist, we need to both see if one already exists as well as create one if it does not. However, the current implementation leads to odd cases where we attempt to create a bloblist before this is possible and have things be overly complicated when we are given one to work with. This reworks things to instead have a bloblist_exists function, which as the name implies checks for an existing bloblist. This is used in the case of booting, to see if we have one and in turn if we have a device tree there as well as in the bloblist_init function to see if we need to do anything. In practical details, we move the logic from bloblist_init that was checking for a bloblist to the new bloblist_exists function and then can clarify the logic as it is much easier to state when we know we do not have one rather than all the ways we might have one. Then we have the locations that set gd->bloblist now also set the GD_FLG_BLOBLIST_READY flag. Reviewed-by: Raymond Mao Tested-by: Alexander Stein Signed-off-by: Tom Rini

bloblist: Demote not finding a bloblist to a debug

2026-06-02T15:30:28Z

The message about not finding a bloblist will quite often be seen at least once, and is non-fatal. Demote this to a log_debug message from a log_warning message. Reviewed-by: Raymond Mao Tested-by: Alexander Stein Signed-off-by: Tom Rini

bloblist: fix pointer comparison in bloblist_apply_blobs()

2026-05-04T18:58:44Z

The rec_from_blob() function returns a pointer, but the code was comparing it using "rec <= 0" which is incorrect for pointer types. Pointers should be compared using "== NULL" or "!= NULL". Addresses-Coverity-ID: CID 645841: Incorrect expression (BAD_COMPARE) Signed-off-by: Michal Simek Reviewed-by: Ilias Apalodimas Reviewed-by: Raymond Mao

Merge patch series "Add support for DT overlays handoff"

2026-04-27T15:44:40Z

Raymond Mao says: The series include refactoring on bloblist and fdtdec to support handoff of multiple DT overlays and applying them into the DT base during setup. All changes are aligned to the spec update for supporting DT overlay handoff[1]. Notes for testing: Currently DT overlay is not yet enabled in TF-A, but with the test patches I provided for TF-A and OP-TEE build, importing a DT overlay blob file from QEMU to TF-A reserved memory is supported. Follow below instructions to build and run for test: $ repo init -u https://github.com/OP-TEE/manifest.git -m qemu_v8.xml Replace your local qemu_v8.xml with [2], which contains all necessary changes in both TF-A and OP-TEE build. $ repo sync $ cd build $ make toolchains $ make ARM_FIRMWARE_HANDOFF=y all Copy and rename your DT overlay blob as 'qemu_v8.dtb' into out/bin $ make ARM_FIRMWARE_HANDOFF=y run-only [1] Add Transfer Entry for Devicetree Overlay https://github.com/FirmwareHandoff/firmware_handoff/pull/74 [2] https://github.com/raymo200915/optee_manifest/blob/dt_overlay_handoff/qemu_v8.xml Link: https://lore.kernel.org/r/20250718141621.3147633-1-raymond.mao@linaro.org

bloblist: add API for applying blobs with specified tag

2026-04-27T15:42:36Z

Add an API to search for the blobs with specified tag and use the hook function to apply the blob data. Add a helper function to return the inline header size as according to recent spec[1] updates, the actual data can be following an inline header instead of following the TE header immediately. [1] Firmware Handoff spec: https://github.com/FirmwareHandoff/firmware_handoff Signed-off-by: Raymond Mao Reviewed-by: Tom Rini Tested-by: Michal Simek

bloblist: fix a potential negative size for memmove

2026-04-27T15:42:36Z

It causes a panic when blob is shrunk and 'new_alloced' is less than 'next_ofs'. The data area that needs to be moved should end up at 'hdr->used_size'. Fixes: 1fe59375498f ("bloblist: Support resizing a blob") Signed-off-by: Raymond Mao Reviewed-by: Tom Rini Tested-by: Michal Simek

bloblist: add helper functions

2026-04-27T15:42:36Z

Add two helper functions for: 1. marking a blob void 2. getting blob record from a given blob data pointer. Signed-off-by: Raymond Mao Reviewed-by: Tom Rini Tested-by: Michal Simek

bloblist: add blob type for DT overlay

2026-04-27T15:42:36Z

Add blob type for DT overlay according to the update of Firmware Handoff spec[1]. Add an inline header to represent the 'subtype' in a DT overlay blob payload. [1] Add Transfer Entry for Devicetree Overlay https://github.com/FirmwareHandoff/firmware_handoff/pull/74 Signed-off-by: Raymond Mao Reviewed-by: Tom Rini Tested-by: Michal Simek

bloblist: use correct types for physical addresses

2025-09-12T19:49:34Z

It is expected that bloblists are stored in high memory beyond 2 GiB. We must not use int as data type for these addresses but phys_addr_t. Fixes: f9ef9fb033d5 ("bloblist: Handle alignment with a void entry") Signed-off-by: Heinrich Schuchardt Reviewed-by: Ilias Apalodimas

Merge patch series "bloblist: refactor xferlist and bloblist"

2025-02-20T00:49:47Z

Tom Rini says: This small series separates "bloblist" and "standard passage" to allow for these similar concepts to explore solutions to problems without introduces breaking changes to the other. Link: https://lore.kernel.org/r/20250220000223.1044376-1-raymond.mao@linaro.org