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
bl1_plat_mboot_init(void)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
bl1_plat_mboot_finish(void)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 if (rc != 0) {
68 /*
69 * It is a fatal error because on FVP platform, BL2 software
70 * assumes that a valid Event Log buffer exist and it will use
71 * same Event Log buffer to append image measurements.
72 */
73 panic();
74 }
75 }
76