feat(fvp): enable external SP images in BL2 config
Currently the list of SP UUIDs loaded by BL2 is hardcoded in the DT.
This is a problem when building a system with other SPs (e.g. from
Trusted Services). This commit implements a workaround to enable adding
SP UUIDs to the list at build time.
Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>
Change-Id: Iff85d3778596d23d777dec458f131bd7a8647031
diff --git a/Makefile b/Makefile
index b4bebf1..8411355 100644
--- a/Makefile
+++ b/Makefile
@@ -525,6 +525,10 @@
ifeq ($(TS_SP_FW_CONFIG),1)
DTC_CPPFLAGS += -DTS_SP_FW_CONFIG
endif
+
+ ifneq ($(ARM_BL2_SP_LIST_DTS),)
+ DTC_CPPFLAGS += -DARM_BL2_SP_LIST_DTS=$(ARM_BL2_SP_LIST_DTS)
+ endif
else
# All other SPDs in spd directory
SPD_DIR := spd
diff --git a/docs/plat/arm/arm-build-options.rst b/docs/plat/arm/arm-build-options.rst
index d4fa98d..74251bd 100644
--- a/docs/plat/arm/arm-build-options.rst
+++ b/docs/plat/arm/arm-build-options.rst
@@ -100,6 +100,9 @@
- ``ARM_SPMC_MANIFEST_DTS`` : path to an alternate manifest file used as the
SPMC Core manifest. Valid when ``SPD=spmd`` is selected.
+- ``ARM_BL2_SP_LIST_DTS``: Path to DTS file snippet to override the hardcoded
+ SP nodes in tb_fw_config.
+
- ``OPTEE_SP_FW_CONFIG``: DTC build flag to include OP-TEE as SP in tb_fw_config
device tree. This flag is defined only when ``ARM_SPMC_MANIFEST_DTS`` manifest
file name contains pattern optee_sp.
diff --git a/plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts b/plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts
index 62ab27c..08d3c32 100644
--- a/plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts
+++ b/plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts
@@ -4,6 +4,8 @@
* SPDX-License-Identifier: BSD-3-Clause
*/
+#include <lib/libc/cdefs.h>
+
/dts-v1/;
/ {
@@ -74,6 +76,10 @@
secure-partitions {
compatible = "arm,sp";
+
+#ifdef ARM_BL2_SP_LIST_DTS
+ #include __XSTRING(ARM_BL2_SP_LIST_DTS)
+#else
#ifdef OPTEE_SP_FW_CONFIG
op-tee {
uuid = "486178e0-e7f8-11e3-bc5e-0002a5d5c51b";
@@ -104,6 +110,7 @@
owner = "Plat";
};
#endif
+#endif /* ARM_BL2_SP_LIST_DTS */
};
#if COT_DESC_IN_DTB