Re: [PATCH v4] arm64: defconfig: Enable QCOMTEE module for QTEE-enabled Qualcomm SoCs

[Sumit Garg <sumit.garg@kernel.org>]

On Wed, Jan 14, 2026 at 01:49:14PM +0530, Harshal Dev wrote:
> All Qualcomm SoCs starting from SM8650 provide access to the Qualcomm
> Trusted Execution Environment (QTEE) through the SMCInvoke interface,
> implemented by the QCOMTEE driver. QTEE runs in the Secure World domain
> on ARM64 CPUs and exposes secure services to Linux running in the Normal
> World domain.
> 
> This change enables the QCOMTEE driver as a module to support
> communication with QTEE.
> 
> QCOMTEE has been tested on a Qualcomm RB3Gen2 board by loading and
> executing a Trusted Application via tests hosted at
> github.com/qualcomm/minkipc.
> 
> Signed-off-by: Harshal Dev <harshal.dev@oss.qualcomm.com>
> ---
> Changes in v4:
> - Updated the commit message as per discussion to clarify the following:
> - Why we are enabling QCOMTEE for all arm64 boards.
> - From which Qualcomm SoC onwards the driver is applicable.
> - What functionality the driver provides.
> - How the functionality has been tested and on which board.
> - Link to v3: https://lore.kernel.org/r/20251208-qcom_qcomtee_defconfig-v3-1-b50dcf8ab45e@oss.qualcomm.com

Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>

-Sumit

> 
> Changes in v3:
> - Updated the commit message to reflect the supported Qualcomm platforms.
> - Link to v2: https://lore.kernel.org/r/20251205-qcom_qcomtee_defconfig-v2-1-c92560b0346e@qti.qualcomm.com
> 
> Changes in v2:
> - Updated CONFIG_QCOMTEE flag to 'm' since QCOMTEE can be built as a module.
> - Link to v1: https://lore.kernel.org/r/20251202-qcom_qcomtee_defconfig-v1-1-11bfe40a8ea4@oss.qualcomm.com
> ---
>  arch/arm64/configs/defconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
> index cdb7d69e3b24..e952d24bef77 100644
> --- a/arch/arm64/configs/defconfig
> +++ b/arch/arm64/configs/defconfig
> @@ -1789,6 +1789,7 @@ CONFIG_FPGA_MGR_ZYNQMP_FPGA=m
>  CONFIG_FPGA_MGR_VERSAL_FPGA=m
>  CONFIG_TEE=y
>  CONFIG_OPTEE=y
> +CONFIG_QCOMTEE=m
>  CONFIG_MUX_GPIO=m
>  CONFIG_MUX_MMIO=y
>  CONFIG_SLIMBUS=m
> 
> ---
> base-commit: 47b7b5e32bb7264b51b89186043e1ada4090b558
> change-id: 20251202-qcom_qcomtee_defconfig-8dc0fed1411b
> 
> Best regards,
> -- 
> Harshal Dev <harshal.dev@oss.qualcomm.com>
>