search

ARM-software / ebbr

Embedded Base Boot Requirements Specification
Creative Commons Attribution Share Alike 4.0 International
113 stars 36 forks source link

EFI_DT_FIXUP_PROTOCOL #68

Open xypron opened 3 years ago

xypron commented 3 years ago

Do we want to include the EFI_DT_FIXUP_PROTOCOL in the EBBR (https://github.com/U-Boot-EFI/EFI_DT_FIXUP_PROTOCOL)?

glikely commented 3 years ago

Depends on how you want to specify it in EBBR. I'm not keen on adding it to the requirements until we know the relevant projects (Yocto, OpenWRT, Buildroot, etc) will adopt it.

What are you thinking for specification text?

xypron commented 3 years ago

Am 16. Januar 2021 10:31:45 MEZ schrieb Grant Likely notifications@github.com:

Depends on how you want to specify it in EBBR. I'm not keen on adding it to the requirements until we know the relevant projects (Yocto, OpenWRT, Buildroot, etc) will adopt it.

Hello Grant,

They will be using the U-Boot source where I have enabled the protocol.

To me the relevant project is GRUB. I have analyzed what code needs changing there but not implemented anything yet.

(OpenWRT does not use GRUB.)

I had hoped for feedback in the DTE project where the idea emerged. But in the last meeting I was referred to EBBR.

What are you thinking for specification text?

I would copy the readme from https://github.com/U-Boot-EFI/EFI_DT_FIXUP_PROTOCOL.

Best regards

Heinrich

jan-kiszka commented 2 years ago

What's the status of this? U-Boot supports it now, systemd picked it up, EFI Boot Guard will as well - but we may also need it in alternative UEFI providers (e.g. edk2).

jan-kiszka commented 2 years ago

Second ping. We are relying in this interface by now to enable secure boot via a unified kernel image for Debian (and conceptually also other distros) while permitting replacement DTBs in that unified kernel image.

https://github.com/siemens/efibootguard/blob/master/docs/UNIFIED-KERNEL.md https://github.com/siemens/efibootguard/blob/master/kernel-stub/fdt.c https://gitlab.com/cip-project/cip-core/isar-cip-core

xypron commented 2 years ago

@glikely Could you, please, send out an invite for the next EBBR meeting to discuss this protocol?

jan-kiszka commented 2 years ago

Did this discussion take place?

jan-kiszka commented 1 year ago

@xypron, I heard from @glikely that someone else is driving EBBR now - but I forgot the name :frowning_face:.

daniel-thompson commented 1 year ago

It is on the agenda for the upcoming meeting: https://lists.linaro.org/archives/list/boot-architecture@lists.linaro.org/thread/N6BPBGHT5U2LOZRBSMIVIVLFTIISBXFR/

jan-kiszka commented 1 year ago

I've found another use case where this protocol would be very beneficial - rather than the fragile approach that is currently implemented in a BSP. See https://github.com/U-Boot-EFI/EFI_DT_FIXUP_PROTOCOL/issues/1.

xypron commented 1 year ago

Am 19. September 2022 14:27:23 MESZ schrieb Jan Kiszka @.>: @., I heard from @glikely that someone else is driving EBBR now - but I forgot the name :frowning_face:.

Vincent Stehlé @.***> organises the EBBR meetings now. There will be a meeting next Monday.

Best regards

Heinrich

jan-kiszka commented 10 months ago

More than a year has passed - any progress with this?