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Re: Call to grub_file_read fails in grub_multiboot_load_elf64

From: Daniel Kiper
Subject: Re: Call to grub_file_read fails in grub_multiboot_load_elf64
Date: Mon, 11 May 2020 16:39:47 +0200
User-agent: NeoMutt/20170113 (1.7.2)

Adding Leif and Ard,

On Sun, May 03, 2020 at 09:17:50PM +0100, Chris Plant via Grub-devel wrote:
> Hello,
> I'm fairly new to grub coding, and I'm trying to get multiboot2 working
> on the arm64-efi target for an OS project. However, I'm running up
> against an issue with a call to grub_file_read from
> grub_multiboot_load_elf64 around line 170 in multiboot_elf.c.  This
> causes a synchronous error (esr 0x96000045) which is a Data Abort
> caused by a translation error in the level 1 table during a write.
> At first I thought it was that the load address in the ELF header (this
> is used as a "target" in the relocator_alloc_chunk_addr) was the issue,
> but tweaking that around doesn't seem to change any issue.
> Does anyone have any experience with the ARM64-EFI target or the
> multiboot2 code who could help me understand where the issue is?

First of all, why cannot you use EFI loader for ARM? There is no
the Multiboot2 specification for ARM...


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