1 /* 2 * Copyright (c) 2025, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <stdint.h> 8 9 #include <common/tbbr/tbbr_img_def.h> 10 #if TRANSFER_LIST 11 #include <tpm_event_log.h> 12 #endif 13 #include <plat/arm/common/plat_arm.h> 14 #include <plat/common/common_def.h> 15 16 #include <drivers/auth/crypto_mod.h> 17 #include <drivers/measured_boot/metadata.h> 18 #include <event_measure.h> 19 #include <event_print.h> 20 #if defined(ARM_COT_cca) 21 #include <tools_share/cca_oid.h> 22 #else 23 #include <tools_share/tbbr_oid.h> 24 #endif /* ARM_COT_cca */ 25 26 /* Event Log data */ 27 static uint8_t *event_log_base; 28 29 static const struct event_log_hash_info crypto_hash_info = { 30 .func = crypto_mod_calc_hash, 31 .ids = (const uint32_t[]){ CRYPTO_MD_ID }, 32 .count = 1U, 33 }; 34 35 /* table with platform specific image IDs, names and PCRs */ 36 const event_log_metadata_t juno_event_log_metadata[] = { 37 { BL31_IMAGE_ID, MBOOT_BL31_IMAGE_STRING, PCR_0 }, 38 { BL32_IMAGE_ID, MBOOT_BL32_IMAGE_STRING, PCR_0 }, 39 { BL32_EXTRA1_IMAGE_ID, MBOOT_BL32_EXTRA1_IMAGE_STRING, PCR_0 }, 40 { BL32_EXTRA2_IMAGE_ID, MBOOT_BL32_EXTRA2_IMAGE_STRING, PCR_0 }, 41 { BL33_IMAGE_ID, MBOOT_BL33_IMAGE_STRING, PCR_0 }, 42 { HW_CONFIG_ID, MBOOT_HW_CONFIG_STRING, PCR_0 }, 43 { NT_FW_CONFIG_ID, MBOOT_NT_FW_CONFIG_STRING, PCR_0 }, 44 { SCP_BL2_IMAGE_ID, MBOOT_SCP_BL2_IMAGE_STRING, PCR_0 }, 45 { SOC_FW_CONFIG_ID, MBOOT_SOC_FW_CONFIG_STRING, PCR_0 }, 46 { TOS_FW_CONFIG_ID, MBOOT_TOS_FW_CONFIG_STRING, PCR_0 }, 47 { EVLOG_INVALID_ID, NULL, (unsigned int)(-1) } /* Terminator */ 48 }; 49 50 void bl2_plat_mboot_init(void) 51 { 52 #if TRANSFER_LIST 53 uint8_t *event_log_start; 54 uint8_t *event_log_finish; 55 int rc; 56 57 event_log_start = transfer_list_event_log_extend( 58 secure_tl, PLAT_ARM_EVENT_LOG_MAX_SIZE); 59 60 event_log_base = event_log_start; 61 event_log_finish = event_log_start + PLAT_ARM_EVENT_LOG_MAX_SIZE; 62 63 rc = event_log_init_and_reg(event_log_start, event_log_finish, 64 &crypto_hash_info); 65 if (rc < 0) { 66 ERROR("Failed to initialize event log (%d).\n", rc); 67 panic(); 68 } 69 #endif 70 } 71 72 int plat_mboot_measure_critical_data(unsigned int critical_data_id, 73 const void *base, size_t size) 74 { 75 /* Nothing */ 76 return 0; 77 } 78 79 void bl2_plat_mboot_finish(void) 80 { 81 #if TRANSFER_LIST 82 /* Event Log filled size */ 83 size_t event_log_cur_size; 84 85 event_log_cur_size = event_log_get_cur_size((uint8_t *)event_log_base); 86 87 /* 88 * Re-size the event log for the next stage and update the size to include 89 * the entire event log (i.e., not just what this stage has added.) 90 */ 91 event_log_base = transfer_list_event_log_finish( 92 secure_tl, (uintptr_t)event_log_base + event_log_cur_size); 93 if (event_log_base == NULL) { 94 panic(); 95 } 96 97 event_log_cur_size = event_log_get_cur_size((uint8_t *)event_log_base); 98 event_log_dump(event_log_base, event_log_cur_size); 99 #endif /* TRANSFER_LIST */ 100 } 101