54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/*
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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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#ifndef RSS_MEASURED_BOOT_H
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#define RSS_MEASURED_BOOT_H
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#include <stdint.h>
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#include <common/debug.h>
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#include <measured_boot.h>
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#define RSS_MBOOT_INVALID_ID UINT32_MAX
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/*
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* Each boot measurement has some metadata (i.e. a string) that identifies
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* what was measured and how. The sw_type field of the rss_mboot_metadata
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* structure represents the role of the software component that was measured.
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* The below macros define strings suitable for the sw_type.
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* The key thing is to choose meaningful strings so that when the attestation
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* token is verified, then the different components can be identified.
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*/
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#define RSS_MBOOT_BL2_STRING "BL_2"
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#define RSS_MBOOT_BL31_STRING "SECURE_RT_EL3"
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#define RSS_MBOOT_FW_CONFIG_STRING "FW_CONFIG"
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#define RSS_MBOOT_TB_FW_CONFIG_STRING "TB_FW_CONFIG"
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#define RSS_MBOOT_RMM_STRING "RMM"
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struct rss_mboot_metadata {
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unsigned int id;
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uint8_t slot;
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uint8_t signer_id[SIGNER_ID_MAX_SIZE];
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size_t signer_id_size;
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uint8_t version[VERSION_MAX_SIZE];
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size_t version_size;
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uint8_t sw_type[SW_TYPE_MAX_SIZE];
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size_t sw_type_size;
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bool lock_measurement;
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};
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/* Functions' declarations */
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void rss_measured_boot_init(void);
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struct rss_mboot_metadata *plat_rss_mboot_get_metadata(void);
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int rss_mboot_measure_and_record(uintptr_t data_base, uint32_t data_size,
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uint32_t data_id);
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/* TODO: These metadata are currently not available during TF-A boot */
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int rss_mboot_set_signer_id(unsigned int img_id, const void *pk_ptr, size_t pk_len);
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#endif /* RSS_MEASURED_BOOT_H */
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