tftf/tests/misc_tests/test_firmware_handoff.c

/*
 * Copyright (c) 2023, Arm Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <assert.h>

#include <test_helpers.h>
#include <tftf_lib.h>
#include <transfer_list.h>

extern u_register_t hw_config_base;
extern u_register_t ns_tl;
extern u_register_t tl_signature;

#define DTB_PREAMBLE U(0xedfe0dd0)

test_result_t test_handoff_header(void)
{
	struct transfer_list_header *tl = (struct transfer_list_header *)ns_tl;

	assert((uint32_t)tl_signature ==
	       (REGISTER_CONVENTION_VERSION_MASK | TRANSFER_LIST_SIGNATURE));

	if (transfer_list_check_header(tl) == TL_OPS_NON) {
		return TEST_RESULT_FAIL;
	}

	return TEST_RESULT_SUCCESS;
}

test_result_t test_handoff_dtb_payload(void)
{
	tftf_testcase_printf("Validating HW_CONFIG from transfer list.\n");
	struct transfer_list_header *tl = (struct transfer_list_header *)ns_tl;
	struct transfer_list_entry *te = (void *)tl + tl->hdr_size;
	uintptr_t dtb_ptr;

	te = transfer_list_find(tl, TL_TAG_FDT);

	if (te == NULL) {
		tftf_testcase_printf(
			"Failed to find HW CONFIG TE in transfer list!");
		return TEST_RESULT_FAIL;
	}

	dtb_ptr = (unsigned long)transfer_list_entry_data(te);

	if ((dtb_ptr != hw_config_base) &&
	    (*(uint32_t *)dtb_ptr != DTB_PREAMBLE)) {
		return TEST_RESULT_FAIL;
	}

	return TEST_RESULT_SUCCESS;
}