[PATCH 03/15] Convert CONFIG_ARMV8_SWITCH_TO_EL1 to Kconfig

[Michal Simek]

Hi Tom,

On 3/10/22 02:43, Tom Rini wrote:
> This converts the following to Kconfig:
>     CONFIG_ARMV8_SWITCH_TO_EL1
> 
> As this option isn't enabled anywhere and is for very specific
> circumstances, it's not an asked Kconfig option and instead noted as
> something to select.
> 
> Cc: Alex Nemirovsky <alex.nemirovsky at cortina-access.com>
> Cc: Marek Vasut <marek.vasut+renesas at gmail.com>
> Cc: Michal Simek <michal.simek at xilinx.com>
> Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
> Cc: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
> Cc: Tien Fong Chee <tien.fong.chee at intel.com>
> Signed-off-by: Tom Rini <trini at konsulko.com>
> ---
>   arch/arm/cpu/armv8/Kconfig      | 6 ++++++
>   include/configs/xilinx_versal.h | 2 --
>   include/configs/xilinx_zynqmp.h | 2 --
>   3 files changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig
> index 9967376ecab9..8d29393bc0e9 100644
> --- a/arch/arm/cpu/armv8/Kconfig
> +++ b/arch/arm/cpu/armv8/Kconfig
> @@ -31,6 +31,12 @@ config ARMV8_SET_SMPEN
>   	  it can be safely enabled when EL2/EL3 initialized SMPEN bit
>   	  or when CPU implementation doesn't include that register.
>   
> +config ARMV8_SWITCH_TO_EL1
> +	bool

I think it make sense to be able to enable it via menuconfig to make it 
selectable based on user wish. I was using it in past to check that we can do 
clear handoff to EL1 directly.

Thanks,
Michal