36 lines
1011 B
Makefile
36 lines
1011 B
Makefile
#
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# Copyright (c) 2022, Arm Limited. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Hash algorithm for measured boot
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# SHA-256 (or stronger) is required.
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# TODO: The measurement algorithm incorrectly suggests that the TPM backend
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# is used which may not be the case. It is currently being worked on and
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# soon TPM_HASH_ALG will be replaced by a more generic name.
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TPM_HASH_ALG := sha256
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ifeq (${TPM_HASH_ALG}, sha512)
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MBOOT_ALG_ID := MBOOT_ALG_SHA512
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MBOOT_DIGEST_SIZE := 64U
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else ifeq (${TPM_HASH_ALG}, sha384)
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MBOOT_ALG_ID := MBOOT_ALG_SHA384
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MBOOT_DIGEST_SIZE := 48U
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else
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MBOOT_ALG_ID := MBOOT_ALG_SHA256
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MBOOT_DIGEST_SIZE := 32U
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endif #TPM_HASH_ALG
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# Set definitions for Measured Boot driver.
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$(eval $(call add_defines,\
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$(sort \
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MBOOT_ALG_ID \
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MBOOT_DIGEST_SIZE \
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MBOOT_RSS_BACKEND \
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)))
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MEASURED_BOOT_SRC_DIR := drivers/measured_boot/rss/
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MEASURED_BOOT_SOURCES += ${MEASURED_BOOT_SRC_DIR}rss_measured_boot.c
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