[Buildroot] [git commit] board/qemu/x86_64-efi/linux.config: enable CONFIG_EFI_STUB to fix with grub2 >= 2.14

commit: https://gitlab.com/buildroot.org/buildroot/-/commit/ca2c31b019eadbed5875dce52ed8e6249a606e86
branch: https://gitlab.com/buildroot.org/buildroot/-/tree/master

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] https://gitlab.com/buildroot.org/buildroot/-/commit/da278ba1dab7e29369879c8a29cbd1b42dbe9ce0
[2] https://gitlab.com/buildroot.org/buildroot/-/commit/1c1fa6ce67448ef8bab16d795623be730ff658ea

Reported-by: Romain Naour <[email protected]>
Signed-off-by: Julien Olivain <[email protected]>
Signed-off-by: Peter Korsgaard <[email protected]>
---
 board/qemu/x86_64-efi/linux.config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/board/qemu/x86_64-efi/linux.config b/board/qemu/x86_64-efi/linux.config
index 9362b7ecb5..4f5f0b386d 100644
--- a/board/qemu/x86_64-efi/linux.config
+++ b/board/qemu/x86_64-efi/linux.config
@@ -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
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