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board/qemu/x86_64-efi/linux.config: enable CONFIG_EFI_STUB to fix with grub2 >= 2.14

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Since Buildroot commit [1] (boot/grub2: bump to version 2.14), the
qemu_x86_64_efi_defconfig fails at boot time with the error:

    !!!! X64 Exception Type - 0E(#PF - Page-Fault)  CPU Apic ID - 00000000 !!!!
    ExceptionData - 0000000000000003  I:0 R:0 U:0 W:1 P:1 PK:0 SS:0 SGX:0

This issue happens because EDK2 and Grub 2.14 are enabling NX and the
kernel lacks the CONFIG_EFI_STUB configuration. For the full explanation
see the commit log of [2] (board/pc/linux.config: enable CONFIG_EFI_STUB).

This commit enables CONFIG_EFI_STUB=y.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/15969219375

[1] da278ba1da
[2] 1c1fa6ce67

Reported-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Julien Olivain
2026-08-21 18:20:29 +02:00
committed by Peter Korsgaard
parent c4f41f4f3f
commit ca2c31b019
1 changed files with 1 additions and 0 deletions
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board/qemu/x86_64-efi/linux.config
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@@ -3,6 +3,7 @@ CONFIG_SMP=y
CONFIG_HYPERVISOR_GUEST=y
CONFIG_PARAVIRT=y
CONFIG_EFI=y
CONFIG_EFI_STUB=y
# CONFIG_GCC_PLUGINS is not set
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y