Add support for the Boot Loader Specification (BLS) type 1 boot entries, as generated by default by systemd's kernel-install when loader=bls.
Given that the format of BLS entries is pretty much the same as PXElinux, reuse the existing library for the parsing logic. BLS type 2 entries are out of scope, as they are effectively just EFI applications and should be booted as such. This implementation is also only allowing a single top-sorting entry to boot, as the standard boot infrastruture currently doesn't support multiple entries per partition-bootmeth tuple. I have a proposed extension to enable that and will post it separately as RFC - that enables the use of `bootflow menu` to select the kernel to boot without jumping through several menus with different behavior as is currently required with extlinux.conf. Signed-off-by: Alexey Charkov <[email protected]> --- Alexey Charkov (7): pxe_utils: fix W=1 kernel-doc warnings pxe_utils: accept "options" as synonym for "append" pxe_utils: extract per-entry key parsing into parse_label_keys() pxe_utils: export per-entry label helpers pxe_utils: optionally ignore unknown keys in parse_label_keys() pxe_utils: accept "title" inside a label as a synonym for "menu label" boot: add a minimal bootmeth for the Boot Loader Specification boot/Kconfig | 17 +++ boot/Makefile | 1 + boot/bootmeth_bls.c | 333 ++++++++++++++++++++++++++++++++++++++++++++++++++++ boot/pxe_utils.c | 134 +++++++++++++-------- include/pxe_utils.h | 62 ++++++++++ 5 files changed, 499 insertions(+), 48 deletions(-) --- base-commit: 31af00bdc6a3ab5d4ada83e08407f2ce289f0ec6 change-id: 20260604-bls-db6a30b913ae Best regards, -- Alexey Charkov <[email protected]>
