1 /* 2 * Copyright (c) 2021-2023, 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 #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, EVLOG_FW_CONFIG_STRING, PCR_0 }, 20 { TB_FW_CONFIG_ID, EVLOG_TB_FW_CONFIG_STRING, PCR_0 }, 21 { BL2_IMAGE_ID, EVLOG_BL2_STRING, PCR_0 }, 22 23 { EVLOG_INVALID_ID, NULL, (unsigned int)(-1) } /* Terminator */ 24 }; 25 26 /* FVP table with platform specific image IDs and metadata. Intentionally not a 27 * const struct, some members might set by bootloaders during trusted boot. 28 */ 29 struct rss_mboot_metadata fvp_rss_mboot_metadata[] = { 30 { 31 .id = FW_CONFIG_ID, 32 .slot = U(6), 33 .signer_id_size = SIGNER_ID_MIN_SIZE, 34 .sw_type = RSS_MBOOT_FW_CONFIG_STRING, 35 .pk_oid = ZERO_OID, 36 .lock_measurement = true }, 37 { 38 .id = TB_FW_CONFIG_ID, 39 .slot = U(7), 40 .signer_id_size = SIGNER_ID_MIN_SIZE, 41 .sw_type = RSS_MBOOT_TB_FW_CONFIG_STRING, 42 .pk_oid = ZERO_OID, 43 .lock_measurement = true }, 44 { 45 .id = BL2_IMAGE_ID, 46 .slot = U(8), 47 .signer_id_size = SIGNER_ID_MIN_SIZE, 48 .sw_type = RSS_MBOOT_BL2_STRING, 49 .pk_oid = ZERO_OID, 50 .lock_measurement = true }, 51 52 { 53 .id = RSS_MBOOT_INVALID_ID } 54 }; 55 56 void bl1_plat_mboot_init(void) 57 { 58 event_log_init(event_log, event_log + sizeof(event_log)); 59 event_log_write_header(); 60 61 rss_measured_boot_init(fvp_rss_mboot_metadata); 62 } 63 64 void bl1_plat_mboot_finish(void) 65 { 66 size_t event_log_cur_size; 67 68 event_log_cur_size = event_log_get_cur_size(event_log); 69 int rc = arm_set_tb_fw_info((uintptr_t)event_log, 70 event_log_cur_size, 71 PLAT_ARM_EVENT_LOG_MAX_SIZE); 72 if (rc != 0) { 73 /* 74 * It is a fatal error because on FVP platform, BL2 software 75 * assumes that a valid Event Log buffer exist and it will use 76 * same Event Log buffer to append image measurements. 77 */ 78 panic(); 79 } 80 } 81