1 /* 2 * Copyright (c) 2024, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef DICE_PROT_ENV_H 8 #define DICE_PROT_ENV_H 9 10 #include <stdbool.h> 11 #include <stddef.h> 12 #include <stdint.h> 13 14 #include <drivers/measured_boot/metadata.h> 15 16 #define DPE_INVALID_ID UINT32_MAX 17 18 struct dpe_metadata { 19 unsigned int id; 20 uint32_t cert_id; 21 uint8_t signer_id[SIGNER_ID_MAX_SIZE]; 22 size_t signer_id_size; 23 uint8_t version[VERSION_MAX_SIZE]; 24 size_t version_size; 25 uint8_t sw_type[SW_TYPE_MAX_SIZE]; 26 size_t sw_type_size; 27 bool allow_new_context_to_derive; 28 bool retain_parent_context; 29 bool create_certificate; 30 int target_locality; 31 void *pk_oid; 32 }; 33 34 void dpe_init(struct dpe_metadata *metadata); 35 36 /* Returns 0 in case of success otherwise -1. */ 37 int dpe_measure_and_record(struct dpe_metadata *metadata, 38 uintptr_t data_base, uint32_t data_size, 39 uint32_t data_id); 40 41 int dpe_set_signer_id(struct dpe_metadata *metadata, 42 const void *pk_oid, const void *pk_ptr, size_t pk_len); 43 44 /* Child components inherit their first valid context handle from their parents. 45 * How to share context handle is platform specific. 46 */ 47 void plat_dpe_share_context_handle(int *ctx_handle, int *parent_ctx_handle); 48 void plat_dpe_get_context_handle(int *ctx_handle); 49 50 #endif /* DICE_PROT_ENV_H */ 51