Re: [PATCH v3 15/15] arm64: defconfig: enable SHM Bridge support for the TZ memory allocator

[Andrew Halaney]

On Mon, Oct 09, 2023 at 05:34:27PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> 
> Enable SHM Bridge support in the Qualcomm TrustZone allocator by default
> as even on architectures that don't support it, we automatically fall
> back to the default behavior.

Can you give some motivation for the Kconfig? It seems like what you've
wrote should just fallback to the non SHM bridge allocated memory, so I
don't see what having the option to exclude that at build time gives us.

> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> ---
>  arch/arm64/configs/defconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index 07011114eef8..ebe97fec6e33 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -255,6 +255,7 @@ CONFIG_INTEL_STRATIX10_RSU=m
>  CONFIG_EFI_CAPSULE_LOADER=y
>  CONFIG_IMX_SCU=y
>  CONFIG_IMX_SCU_PD=y
> +CONFIG_QCOM_TZMEM_MODE_SHMBRIDGE=y
>  CONFIG_GNSS=m
>  CONFIG_GNSS_MTK_SERIAL=m
>  CONFIG_MTD=y
> -- 
> 2.39.2
>