[PATCH v4 7/7] arm64: defconfig: Enable UefiSecApp TEE client driver for Qualcomm SoCs

[Harshal Dev]

All Qualcomm SoCs starting from SM8x50 provide access to the Qualcomm
Trusted Execution Environment (QTEE) through the SMCInvoke interface
implemented by the QCOM-TEE 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 UefiSecApp TEE client driver as a module to provide
access to UEFI variables on Qualcomm SoCs via the uefisecapp Trusted
Application running in QTEE. The TEE client driver communicates with QTEE
via the QCOM-TEE driver.

Access to UEFI variables has been tested on a Qualcomm RB3Gen2 board via
the efivar tool.

Signed-off-by: Harshal Dev <harshal.dev@xxxxxxxxxxxxxxxx>
---
 arch/arm64/configs/defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index fce418fe6ff6..a8525878c679 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -277,6 +277,7 @@ CONFIG_IMX_SCU=y
 CONFIG_QCOM_TZMEM_MODE_SHMBRIDGE=y
 CONFIG_QCOM_QSEECOM=y
 CONFIG_QCOM_QSEECOM_UEFISECAPP=y
+CONFIG_QCOM_TEE_UEFISECAPP=m
 CONFIG_EXYNOS_ACPM_PROTOCOL=m
 CONFIG_TEGRA_BPMP=y
 CONFIG_ZYNQMP_FIRMWARE_DEBUG=y

-- 
2.34.1