1 /* 2 * Copyright (c) 2021-2025, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #include <stdint.h> 8 9 #include <drivers/measured_boot/event_log/event_log.h> 10 #include <drivers/measured_boot/metadata.h> 11 #include <plat/arm/common/plat_arm.h> 12 #include <tools_share/zero_oid.h> 13 14 /* Event Log data */ 15 static uint8_t event_log[PLAT_ARM_EVENT_LOG_MAX_SIZE]; 16 17 /* FVP table with platform specific image IDs, names and PCRs */ 18 const event_log_metadata_t fvp_event_log_metadata[] = { 19 { FW_CONFIG_ID, MBOOT_FW_CONFIG_STRING, PCR_0 }, 20 { TB_FW_CONFIG_ID, MBOOT_TB_FW_CONFIG_STRING, PCR_0 }, 21 { BL2_IMAGE_ID, MBOOT_BL2_IMAGE_STRING, PCR_0 }, 22 23 { EVLOG_INVALID_ID, NULL, (unsigned int)(-1) } /* Terminator */ 24 }; 25 26 void bl1_plat_mboot_init(void) 27 { 28 size_t event_log_max_size = PLAT_ARM_EVENT_LOG_MAX_SIZE; 29 int rc; 30 31 rc = event_log_init(event_log, event_log + event_log_max_size); 32 if (rc < 0) { 33 ERROR("Failed to initialize event log (%d).\n", rc); 34 panic(); 35 } 36 37 rc = event_log_write_header(); 38 if (rc < 0) { 39 ERROR("Failed to write event log header (%d).\n", rc); 40 panic(); 41 } 42 } 43 44 void bl1_plat_mboot_finish(void) 45 { 46 size_t event_log_cur_size; 47 48 event_log_cur_size = event_log_get_cur_size(event_log); 49 int rc = arm_set_tb_fw_info((uintptr_t)event_log, 50 event_log_cur_size, 51 PLAT_ARM_EVENT_LOG_MAX_SIZE); 52 if (rc != 0) { 53 /* 54 * It is a fatal error because on FVP platform, BL2 software 55 * assumes that a valid Event Log buffer exist and it will use 56 * same Event Log buffer to append image measurements. 57 */ 58 panic(); 59 } 60 } 61