kmac_app_rom_test.c

// Copyright lowRISC contributors (OpenTitan project).
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0
 
#include "dt/dt_rom_ctrl.h"  // Generated
#include "sw/device/lib/base/mmio.h"
#include "sw/device/lib/dif/dif_rom_ctrl.h"
#include "sw/device/lib/runtime/log.h"
#include "sw/device/lib/runtime/print.h"
#include "sw/device/lib/testing/test_framework/check.h"
#include "sw/device/lib/testing/test_framework/ottf_main.h"
 
extern const uint32_t kRomImageHash[ROM_CTRL_DIGEST_MULTIREG_COUNT];
 
static dif_rom_ctrl_t rom_ctrl;
static dt_rom_ctrl_t kRomCtrlDt = (dt_rom_ctrl_t)0;
static_assert(kDtRomCtrlCount >= 1,
              "This test requires at least one rom_ctrl instance");
 
OTTF_DEFINE_TEST_CONFIG();
 
bool test_main(void) {
  dif_rom_ctrl_digest_t computed_digest;
  dif_rom_ctrl_digest_t expected_digest;
 
  // initialize rom_ctrl
  CHECK_DIF_OK(dif_rom_ctrl_init_from_dt(kRomCtrlDt, &rom_ctrl));
 
  // get computed and expected digests and check that they match
  CHECK_DIF_OK(dif_rom_ctrl_get_digest(&rom_ctrl, &computed_digest));
  CHECK_DIF_OK(dif_rom_ctrl_get_expected_digest(&rom_ctrl, &expected_digest));
  CHECK_ARRAYS_EQ(computed_digest.digest, expected_digest.digest,
                  ROM_CTRL_DIGEST_MULTIREG_COUNT,
                  "Mismatch between computed and expected digest.");
  CHECK_ARRAYS_EQ(expected_digest.digest, kRomImageHash,
                  ROM_CTRL_DIGEST_MULTIREG_COUNT,
                  "Mismatch between the expected digest and one generated by "
                  "`scramble_image.py`.");
 
  return true;
}