| # |
| # Copyright (c) 2020-2021, Arm Limited. All rights reserved. |
| # |
| # SPDX-License-Identifier: BSD-3-Clause |
| # |
| |
| # Default log level to dump the event log (LOG_LEVEL_INFO) |
| EVENT_LOG_LEVEL ?= 40 |
| |
| # TPM hash algorithm. |
| # SHA-256 (or stronger) is required for all devices that are TPM 2.0 compliant. |
| TPM_HASH_ALG := sha256 |
| |
| ifeq (${TPM_HASH_ALG}, sha512) |
| MBEDTLS_MD_ID := MBEDTLS_MD_SHA512 |
| TPM_ALG_ID := TPM_ALG_SHA512 |
| TCG_DIGEST_SIZE := 64U |
| else ifeq (${TPM_HASH_ALG}, sha384) |
| MBEDTLS_MD_ID := MBEDTLS_MD_SHA384 |
| TPM_ALG_ID := TPM_ALG_SHA384 |
| TCG_DIGEST_SIZE := 48U |
| else |
| MBEDTLS_MD_ID := MBEDTLS_MD_SHA256 |
| TPM_ALG_ID := TPM_ALG_SHA256 |
| TCG_DIGEST_SIZE := 32U |
| endif |
| |
| # Event Log length in bytes |
| EVENT_LOG_SIZE := 1024 |
| |
| # Set definitions for mbed TLS library and Measured Boot driver |
| $(eval $(call add_defines,\ |
| $(sort \ |
| MBEDTLS_MD_ID \ |
| TPM_ALG_ID \ |
| TCG_DIGEST_SIZE \ |
| EVENT_LOG_SIZE \ |
| EVENT_LOG_LEVEL \ |
| ))) |
| |
| ifeq (${HASH_ALG}, sha256) |
| ifneq (${TPM_HASH_ALG}, sha256) |
| $(eval $(call add_define,MBEDTLS_SHA512_C)) |
| endif |
| endif |
| |
| MEASURED_BOOT_SRC_DIR := drivers/measured_boot/event_log/ |
| |
| MEASURED_BOOT_SOURCES := ${MEASURED_BOOT_SRC_DIR}event_log.c \ |
| ${MEASURED_BOOT_SRC_DIR}event_print.c |
| |
| BL2_SOURCES += ${MEASURED_BOOT_SOURCES} |