# Copyright (c) 2023 EPAM Systems # SPDX-License-Identifier: Apache-2.0 config OPTEE bool "OP-TEE driver" depends on (ARM64 && ARMV8_A_NS && HAS_ARM_SMCCC) || ZTEST help This implements support of the OP-TEE firmware which is loaded as BL32 image. OP-TEE is a Trust Zone OS which implements mechanisms of the hardware isolation and rely to ARM TrustZone technology. Driver requests functions from the OP-TEE and implements RPC mechanism needed by OP-TEE to run services. See https://www.op-tee.org for more information. config OPTEE_MAX_NOTIF int "Max number of OP-TEE notifications" depends on OPTEE default $(UINT8_MAX) help Sets the maximum notifications from OP-TEE to the Normal World. OP-TEE using this mechanism for the synchronization.