From 3f498b0dc282f6229b0a894ba61dc1948c4fb384 Mon Sep 17 00:00:00 2001
From: Alexei Fedorov <Alexei.Fedorov@arm.com>
Date: Mon, 13 Jul 2020 14:06:47 +0100
Subject: [PATCH] TF-A: Add support for Measured Boot driver in BL1 and BL2
This patch adds support for Measured Boot driver functionality
in BL1 and BL2 code.
Change-Id: I7239a94c3e32b0a3e9e73768a0140e0b52ab0361
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
---
bl2/bl2_main.c | 18 ++++++++++++++++--
plat/common/plat_bl1_common.c | 15 +++++++++++++--
2 files changed, 29 insertions(+), 4 deletions(-)
diff --git a/bl2/bl2_main.c b/bl2/bl2_main.c
index 802c17464..203e1d4b1 100644
--- a/bl2/bl2_main.c
+++ b/bl2/bl2_main.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -14,6 +14,9 @@
#include <common/debug.h>
#include <drivers/auth/auth_mod.h>
#include <drivers/console.h>
+#if MEASURED_BOOT
+#include <drivers/measured_boot/measured_boot.h>
+#endif
#include <lib/extensions/pauth.h>
#include <plat/common/platform.h>
@@ -88,14 +91,25 @@ void bl2_main(void)
#if TRUSTED_BOARD_BOOT
/* Initialize authentication module */
auth_mod_init();
+
+#if MEASURED_BOOT
+ /* Initialize measured boot module */
+ measured_boot_init();
+
+#endif /* MEASURED_BOOT */
#endif /* TRUSTED_BOARD_BOOT */
- /* initialize boot source */
+ /* Initialize boot source */
bl2_plat_preload_setup();
/* Load the subsequent bootloader images. */
next_bl_ep_info = bl2_load_images();
+#if MEASURED_BOOT
+ /* Finalize measured boot */
+ measured_boot_finish();
+#endif /* MEASURED_BOOT */
+
#if !BL2_AT_EL3
#ifndef __aarch64__
/*
diff --git a/plat/common/plat_bl1_common.c b/plat/common/plat_bl1_common.c
index 5733781ac..2baa29aba 100644
--- a/plat/common/plat_bl1_common.c
+++ b/plat/common/plat_bl1_common.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -27,7 +27,9 @@
#pragma weak bl1_plat_fwu_done
#pragma weak bl1_plat_handle_pre_image_load
#pragma weak bl1_plat_handle_post_image_load
-
+#if MEASURED_BOOT
+#pragma weak bl1_plat_set_bl2_hash
+#endif
unsigned int bl1_plat_get_next_image_id(void)
{
@@ -116,3 +118,12 @@ int bl1_plat_handle_post_image_load(unsigned int image_id)
(void *) bl2_tzram_layout);
return 0;
}
+
+#if MEASURED_BOOT
+/*
+ * Calculates and writes BL2 hash data to TB_FW_CONFIG DTB.
+ */
+void bl1_plat_set_bl2_hash(const image_desc_t *image_desc)
+{
+}
+#endif
--
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