hello.
I have ported corestone1000 plaform to tfm and am trying to use mhu to send and receive messages between secure enclave (SPE)core and host core(NSPE). (I want to use it for future encryption requests).
Looking at the rss platform and corstone-1000 tfm code, the function for initializing and registering the mhu seems to be tfm_inter_core_comm_init.
But I can't find the part that calls tfm_inter_core_comm_init.
Can anyone tell me the procedure and a simple example of sending and receiving messages using MHU in a TFM environment? I've been looking through the TFM documentation, but I can't find it yet.
Below is the tfm_inter_core_comm_init function to register the rpc of the spe in rss.
I was wondering where the function below is called and used.
int32_t tfm_inter_core_comm_init(void) { int int32_t ret;
/* Register RPC callbacks */ ret = tfm_rpc_register_ops(&rpc_ops); if (ret != TFM_RPC_SUCCESS) { return ret; }
/* Platform specific initialization */ ret = tfm_multi_core_hal_init(); if (ret != TFM_PLAT_ERR_SUCCESS) { tfm_rpc_unregister_ops(); return ret; }
} return TFM_RPC_SUCCESS; }
You are a newbie to TFM and are looking for help.