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Re: Device tree support for x86 on Linux

From: Daniel Kiper
Subject: Re: Device tree support for x86 on Linux
Date: Mon, 2 Aug 2021 17:04:41 +0200
User-agent: NeoMutt/20170113 (1.7.2)

On Mon, Aug 02, 2021 at 01:18:21PM +0000, Mislav Stublić wrote:
> Hi Daniel,
> Sorry, sent an unfinished mail by mistake.

No worries.

> Regarding reusing existing code, there is grub-core/loader/efi/fdt.c
> which is mentioned in git log as not really platform specific (although
> it was part of arm64, and does follow EBBR to a degree), but i'm not
> sure if i can really use this for x86. grub-core/loader/efi/ftd.c uses
> grub_efi_allocate_pages_real which, if i understand correctly, calls
> UEFI to allocate memory in EfiACPIReclaimMemory. Not sure if this would
> work for x86 (regarding ACPI and its handling in Linux) and also it
> doesn't use grub_relocator_alloc_chunk_align as you mention.

Feel free to change anything what you need. Of course your changes
cannot break existing code. If you think a design document/email/...
will be better posting before the patches feel free to do that too.


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