1.3. Trusty Dispatcher¶
Trusty is a a set of software components, supporting a Trusted Execution Environment (TEE) on mobile devices, published and maintained by Google.
Detailed information and build instructions can be found on the Android Open Source Project (AOSP) webpage for Trusty hosted at https://source.android.com/security/trusty
1.3.1. Boot parameters¶
Custom boot parameters can be passed to Trusty by providing a platform specific function:
void plat_trusty_set_boot_args(aapcs64_params_t *args)
If this function is provided
args->arg0 must be set to the memory
size allocated to trusty. If the platform does not provide this
function, but defines
TSP_SEC_MEM_SIZE, a default implementation
will pass the memory size from
can be set to a platform specific parameter block, and
should then be set to the size of that block.
1.3.2. Supported platforms¶
Out of all the platforms supported by Trusted Firmware-A, Trusty is only verified and supported by NVIDIA’s Tegra SoCs.