[U-Boot] [BUG] efi_loader: LUV test and SCT test fail on minnowboard

Macheeri Ramaswamy, ShubhashreeX shubhashreex.macheeri.ramaswamy at intel.com
Mon May 21 16:48:50 UTC 2018


Thanks Heinrich for the valuable inputs!

Regards
shubha

-----Original Message-----
From: Heinrich Schuchardt [mailto:xypron.glpk at gmx.de] 
Sent: Friday, May 18, 2018 11:38 PM
To: Macheeri Ramaswamy, ShubhashreeX <shubhashreex.macheeri.ramaswamy at intel.com>
Cc: Alexander Graf <agraf at suse.de>; U-Boot Mailing List <u-boot at lists.denx.de>; AKASHI, Takahiro <takahiro.akashi at linaro.org>; Simon Glass <sjg at chromium.org>
Subject: [BUG] efi_loader: LUV test and SCT test fail on minnowboard

Hello Shubha,

On 05/17/2018 09:40 PM, Macheeri Ramaswamy, ShubhashreeX wrote:
> I could successfully install build and flash the uboot with uefi over 
> minnowboard (from Intel) and could use a serial console to see the 
> prints.

On 05/18/2018 12:39 AM, Macheeri Ramaswamy, ShubhashreeX wrote:
> We tried running LUV test and SCT test, but both failed.

In qemu-system-x86 I am able to load 32 bit GRUB via EFI but never succeeded to boot Linux. Linux used the video memory. And of cause video memory is overwritten by console output.

Part of a solution might be unmerged patch https://patchwork.ozlabs.org/patch/860400/
efi_loader: memory reservations according to e820 table but this patch needs rework as indicated by Alex.

On x86_64 an implementation of setjmp() and longjmp() is missing. These are necessary to use the Exit() boot service or to directly return from an EFI binary.

On Debian building for x86_64 fails without this rejected patch:
https://patchwork.ozlabs.org/patch/812655/
spl: u-boot-spl-nodtb.bin: remove .got and .got.plt sections

Best regards

Heinrich


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