1 /* 2 * Copyright (c) 2021-2022, 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/rss/rss_measured_boot.h> 11 #include <plat/arm/common/plat_arm.h> 12 13 /* Event Log data */ 14 static uint8_t event_log[PLAT_ARM_EVENT_LOG_MAX_SIZE]; 15 16 /* FVP table with platform specific image IDs, names and PCRs */ 17 const event_log_metadata_t fvp_event_log_metadata[] = { 18 { FW_CONFIG_ID, EVLOG_FW_CONFIG_STRING, PCR_0 }, 19 { TB_FW_CONFIG_ID, EVLOG_TB_FW_CONFIG_STRING, PCR_0 }, 20 { BL2_IMAGE_ID, EVLOG_BL2_STRING, PCR_0 }, 21 22 { EVLOG_INVALID_ID, NULL, (unsigned int)(-1) } /* Terminator */ 23 }; 24 25 /* FVP table with platform specific image IDs and metadata. Intentionally not a 26 * const struct, some members might set by bootloaders during trusted boot. 27 */ 28 struct rss_mboot_metadata fvp_rss_mboot_metadata[] = { 29 { 30 .id = FW_CONFIG_ID, 31 .slot = U(6), 32 .signer_id_size = SIGNER_ID_MIN_SIZE, 33 .sw_type = RSS_MBOOT_FW_CONFIG_STRING, 34 .lock_measurement = true }, 35 { 36 .id = TB_FW_CONFIG_ID, 37 .slot = U(7), 38 .signer_id_size = SIGNER_ID_MIN_SIZE, 39 .sw_type = RSS_MBOOT_TB_FW_CONFIG_STRING, 40 .lock_measurement = true }, 41 { 42 .id = BL2_IMAGE_ID, 43 .slot = U(8), 44 .signer_id_size = SIGNER_ID_MIN_SIZE, 45 .sw_type = RSS_MBOOT_BL2_STRING, 46 .lock_measurement = true }, 47 48 { 49 .id = RSS_MBOOT_INVALID_ID } 50 }; 51 52 void bl1_plat_mboot_init(void) 53 { 54 event_log_init(event_log, event_log + sizeof(event_log)); 55 event_log_write_header(); 56 57 rss_measured_boot_init(); 58 } 59 60 void bl1_plat_mboot_finish(void) 61 { 62 size_t event_log_cur_size; 63 64 event_log_cur_size = event_log_get_cur_size(event_log); 65 int rc = arm_set_tb_fw_info((uintptr_t)event_log, 66 event_log_cur_size, 67 PLAT_ARM_EVENT_LOG_MAX_SIZE); 68 if (rc != 0) { 69 /* 70 * It is a fatal error because on FVP platform, BL2 software 71 * assumes that a valid Event Log buffer exist and it will use 72 * same Event Log buffer to append image measurements. 73 */ 74 panic(); 75 } 76 } 77