Re: [PATCH master 3/7] ARM: configs: temporarily revive vexpress_defconfig

[Sascha Hauer <sha@pengutronix.de>]

On Mon, May 22, 2023 at 07:22:18AM +0200, Ahmad Fatoum wrote:
> Vexpress and the Qemu ARM Virt platform have a memory-mapped flash
> starting at physical address 0. This clashes with the zero page used to
> trap NULL pointer accesses when MMU is enabled. For this reason,
> vexpress_defconfig disabled the MMU. vexpress_defconfig was removed in
> favor of multi_v7_defconfig, but the latter enables the MMU, breaking
> the ability to test barebox environment and state out of the box.
> 
> Patches to resolve that are being upstreamed, so until they are, let's
> reinstate vexpress_defconfig.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
>  Documentation/user/virtio.rst       |  2 +-
>  arch/arm/configs/vexpress_defconfig | 76 +++++++++++++++++++++++++++++
>  2 files changed, 77 insertions(+), 1 deletion(-)
>  create mode 100644 arch/arm/configs/vexpress_defconfig
> 
> diff --git a/Documentation/user/virtio.rst b/Documentation/user/virtio.rst
> index a8624649f473..d944fa4821b1 100644
> --- a/Documentation/user/virtio.rst
> +++ b/Documentation/user/virtio.rst
> @@ -44,7 +44,7 @@ Building barebox for QEMU targets is no different from others.
>  For example, we can do the following with the CROSS_COMPILE environment
>  variable being properly set to a working toolchain for ARM::
>  
> -  $ make multi_v7_defconfig
> +  $ make vexpress_defconfig
>    $ make
>  
>  Testing
> diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig

vexpress_defconfig is not removed in master. The patch is still in
-next.

Sascha


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