Esempi in C++ (Cpp) per TEESMC_RETURN_IS_RPC

Esempio n. 1

File: tee_tz.c Progetto: nahanfly/optee_linuxdriver

static void call_tee(uintptr_t parg32, struct teesmc32_arg *arg32)
{
	u32 ret;
	u32 funcid;
	struct smc_param param = { 0 };

	if (irqs_disabled())
		funcid = TEESMC32_FASTCALL_WITH_ARG;
	else
		funcid = TEESMC32_CALL_WITH_ARG;

	param.a1 = parg32;
	while (true) {
		param.a0 = funcid;

		tee_smc_call(&param);
		ret = param.a0;

		if (ret == TEESMC_RETURN_EBUSY) {
			/* "Can't happen" */
			BUG_ON(1);
		} else if (TEESMC_RETURN_IS_RPC(ret)) {
			/* Process the RPC. */
			funcid = handle_rpc(&param);
		} else {
			break;
		}
	}

	switch (ret) {
	case TEESMC_RETURN_UNKNOWN_FUNCTION:
		arg32->ret = TEEC_ERROR_NOT_IMPLEMENTED;
		arg32->ret_origin = TEEC_ORIGIN_COMMS;
		break;
	case TEESMC_RETURN_OK:
		/* arg32->ret set by secure world */
		break;
	default:
		/* Should not happen */
		arg32->ret = TEEC_ERROR_COMMUNICATION;
		arg32->ret_origin = TEEC_ORIGIN_COMMS;
		break;
	}
}

Esempio n. 2

File: tee_tz_drv.c Progetto: sunyanbang/optee_linuxdriver

static void call_tee(struct tee_tz *ptee,
			uintptr_t parg32, struct teesmc32_arg *arg32)
{
	u32 ret;
	u32 funcid;
	struct smc_param param = { 0 };

	if (irqs_disabled())
		funcid = TEESMC32_FASTCALL_WITH_ARG;
	else
		funcid = TEESMC32_CALL_WITH_ARG;

	/*
	 * Commented out elements used to visualize the layout dynamic part
	 * of the struct. Note that these fields are not available at all
	 * if num_params == 0.
	 *
	 * params is accessed through the macro TEESMC32_GET_PARAMS
	 */

	/* struct teesmc32_param params[num_params]; */


	param.a1 = parg32;
	e_lock_teez(ptee);
	while (true) {
		param.a0 = funcid;

		tee_smc_call(&param);
		ret = param.a0;

		if (ret == TEESMC_RETURN_EBUSY) {
			/*
			 * Since secure world returned busy, release the
			 * lock we had when entering this function and wait
			 * for "something to happen" (something else to
			 * exit from secure world and needed resources may
			 * have become available).
			 */
			e_lock_wait_completion_teez(ptee);
		} else if (TEESMC_RETURN_IS_RPC(ret)) {
			/* Process the RPC. */
			e_unlock_teez(ptee);
			funcid = handle_rpc(ptee, &param);
			e_lock_teez(ptee);
		} else {
			break;
		}
	}
	e_unlock_teez(ptee);

	switch (ret) {
	case TEESMC_RETURN_UNKNOWN_FUNCTION:
		break;
	case TEESMC_RETURN_OK:
		/* arg32->ret set by secure world */
		break;
	default:
		/* Should not happen */
		arg32->ret = TEEC_ERROR_COMMUNICATION;
		arg32->ret_origin = TEEC_ORIGIN_COMMS;
		break;
	}
}