diff mbox series

[2/4] arm-bsp/trusted-firmware-a: N1SDP trusted boot

Message ID 20220630094333.3738129-3-adam.johnston@arm.com
State New
Headers show
Series arm-bsp/n1sdp: N1SDP Trusted Boot | expand

Commit Message

Adam Johnston June 30, 2022, 9:43 a.m. UTC 
From: Adam Johnston <adam.johnston@arm.com>

This commit configures trusted-firmware-a for TBBR bootflow on N1SDP as follows:
* Trusted boot is enabled.
* Generation of root-of-trust is enabled
* All TB images (BLx, DTBs) are built
* uefi.bin is specified as the BL33 image
* BL2, BL31, BL33 are signed and stored in the FIP
* N1SDP platform sources are patched to increase max size BL2 and reduce max size of BL1

Signed-off-by: Adam Johnston <adam.johnston@arm.com>
---
 .../files/n1sdp/bl_size.patch                 | 40 +++++++++++++++++++
 .../trusted-firmware-a-n1sdp.inc              | 21 ++++++++--
 2 files changed, 58 insertions(+), 3 deletions(-)
 create mode 100644 meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/n1sdp/bl_size.patch
diff mbox series

Patch

diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/n1sdp/bl_size.patch b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/n1sdp/bl_size.patch
new file mode 100644
index 00000000..a5b30195
--- /dev/null
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/n1sdp/bl_size.patch
@@ -0,0 +1,40 @@ 
+From 80b1efa92486a87f9e82dbf665ef612291148de8 Mon Sep 17 00:00:00 2001
+From: Adam Johnston <adam.johnston@arm.com>
+Date: Tue, 14 Jun 2022 11:19:30 +0000
+Subject: [PATCH] arm-bsp/trusted-firmware-a: N1SDP trusted boot
+
+Increase max size of BL2 on N1SDP by 4KB to enable trusted boot
+Decrease max size of BL1 on N1SDP by 8KB so BL1/BL2 fits above BL31 progbits
+
+Signed-off-by: Adam Johnston <adam.johnston@arm.com>
+Upstream-Status: Pending [Flagged to upstream]
+
+---
+ plat/arm/board/n1sdp/include/platform_def.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/plat/arm/board/n1sdp/include/platform_def.h b/plat/arm/board/n1sdp/include/platform_def.h
+index c9b81bafa..7468a31ed 100644
+--- a/plat/arm/board/n1sdp/include/platform_def.h
++++ b/plat/arm/board/n1sdp/include/platform_def.h
+@@ -91,7 +91,7 @@
+  * PLAT_ARM_MAX_BL1_RW_SIZE is calculated using the current BL1 RW debug size
+  * plus a little space for growth.
+  */
+-#define PLAT_ARM_MAX_BL1_RW_SIZE	0xE000
++#define PLAT_ARM_MAX_BL1_RW_SIZE	0xC000
+ 
+ /*
+  * PLAT_ARM_MAX_ROMLIB_RW_SIZE is define to use a full page
+@@ -110,7 +110,7 @@
+  * little space for growth.
+  */
+ #if TRUSTED_BOARD_BOOT
+-# define PLAT_ARM_MAX_BL2_SIZE		0x20000
++# define PLAT_ARM_MAX_BL2_SIZE		0x21000
+ #else
+ # define PLAT_ARM_MAX_BL2_SIZE		0x14000
+ #endif
+-- 
+2.35.1
+
diff --git a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-n1sdp.inc b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-n1sdp.inc
index 112fac8b..f8a0b8d5 100644
--- a/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-n1sdp.inc
+++ b/meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-n1sdp.inc
@@ -2,8 +2,23 @@ 
 
 COMPATIBLE_MACHINE = "n1sdp"
 TFA_PLATFORM       = "n1sdp"
-TFA_BUILD_TARGET   = "bl31 dtbs"
-TFA_INSTALL_TARGET = "bl31 n1sdp-multi-chip n1sdp-single-chip"
+TFA_BUILD_TARGET   = "all fip"
+TFA_INSTALL_TARGET = "bl1 bl2 bl31 n1sdp-multi-chip n1sdp-single-chip n1sdp_fw_config n1sdp_tb_fw_config fip"
 TFA_DEBUG          = "1"
-TFA_MBEDTLS        = "0"
+TFA_MBEDTLS        = "1"
 TFA_UBOOT          = "0"
+TFA_UEFI           = "1"
+
+SRC_URI:append = " file://bl_size.patch"
+
+TFA_ROT_KEY= "plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem"
+
+EXTRA_OEMAKE:append = "\
+                    TRUSTED_BOARD_BOOT=1 \
+                    GENERATE_COT=1 \
+                    CREATE_KEYS=1 \
+                    ENABLE_PIE=0 \
+                    ARM_ROTPK_LOCATION="devel_rsa" \
+                    ROT_KEY="${TFA_ROT_KEY}" \
+                    BL33=${RECIPE_SYSROOT}/firmware/uefi.bin \
+                    "