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[Bug 1122614] armv7 efistub enablement missing in GRUB2
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 10 Jul 2019 03:53:08 +0000
  • Message-id: <bug-1122614-21960-BwwT6Sobuq@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=1122614
http://bugzilla.opensuse.org/show_bug.cgi?id=1122614#c16

--- Comment #16 from Chester Lin <chester.lin@xxxxxxxx> ---
(In reply to Guillaume GARDET from comment #14)
(In reply to Gary Ching-Pang Lin from comment #12)
From the error message, it looks like the kernel failed at
reserve_kernel_base(). The kernel might try to allocate the memory pages in
a memory region other than EFI_BOOT_SERVICE_* and EFI_CONVENTIONAL_MEMORY.
What I don't understand is why reserve_kernel_base() couldn't just find a
free region and set dram_base accordingly.

https://github.com/torvalds/linux/blob/v5.1/drivers/firmware/efi/libstub/
arm32-stub.c#L64-L188

Maybe u-boot does not pass the right information? As UEFI based qemu system
is fine.

grub has a 'lsefimmap' command to dump entire EFI memmap, would you mind if you
can try it so that we can check if there's any difference between UEFI and
U-Boot?

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