I am using OPTEE-OS on Hikey960 and would like to build a Trusted Application.
When building a TA, I need to specify the path to the out/ folder of OPTEE-OS (TA_DEV_KIT_DIR). I believe it is to sign the application. However, I am using the prebuilt from:
and don’t have access to the built OPTEE-OS and thus, cannot specify the path to build the TA.
Is there a way to compile my TA? Apart from building the BSP from source and stop using the prebuild?