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
bl1_plat_mboot_init(void)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
bl1_plat_mboot_finish(void)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
