feat(tc): add DPE context handle node to device tree
Child software components are inheriting their first valid
DPE context handle from their parent components (who loaded
and measured them). The context handle is shared through
the device tree object the following way:
- BL1 -> BL2 via TB_FW_CONFIG
- BL2 -> BL33 via NT_FW_CONFIG
Signed-off-by: Tamas Ban <tamas.ban@arm.com>
Change-Id: I9bf7808fb13a310ad7ca1895674a0c7e6725e08b
diff --git a/plat/arm/board/tc/fdts/dice_prot_env.dtsi b/plat/arm/board/tc/fdts/dice_prot_env.dtsi
new file mode 100644
index 0000000..118f995
--- /dev/null
+++ b/plat/arm/board/tc/fdts/dice_prot_env.dtsi
@@ -0,0 +1,11 @@
+/*
+ * Copyright (c) 2024, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/* DICE Protection Environment Client Config */
+dice_protection_environment: context_handle {
+ compatible = "arm,dpe_ctx_handle";
+ dpe_ctx_handle = <0x0>;
+};
diff --git a/plat/arm/board/tc/fdts/tc_fw_config.dts b/plat/arm/board/tc/fdts/tc_fw_config.dts
index 982da5b..b210e75 100644
--- a/plat/arm/board/tc/fdts/tc_fw_config.dts
+++ b/plat/arm/board/tc/fdts/tc_fw_config.dts
@@ -30,5 +30,10 @@
max-size = <PLAT_HW_CONFIG_DTB_SIZE>;
id = <HW_CONFIG_ID>;
};
+ nt_fw-config {
+ load-address = <0x0 (PLAT_HW_CONFIG_DTB_BASE + PLAT_HW_CONFIG_DTB_SIZE)>;
+ max-size = <0x1000>;
+ id = <NT_FW_CONFIG_ID>;
+ };
};
};
diff --git a/plat/arm/board/tc/fdts/tc_nt_fw_config.dts b/plat/arm/board/tc/fdts/tc_nt_fw_config.dts
new file mode 100644
index 0000000..bb3086d
--- /dev/null
+++ b/plat/arm/board/tc/fdts/tc_nt_fw_config.dts
@@ -0,0 +1,13 @@
+/*
+ * Copyright (c) 2024, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/dts-v1/;
+
+/ {
+#if DICE_PROTECTION_ENVIRONMENT
+ #include "dice_prot_env.dtsi"
+#endif
+};
diff --git a/plat/arm/board/tc/fdts/tc_tb_fw_config.dts b/plat/arm/board/tc/fdts/tc_tb_fw_config.dts
index c58f17b..cb741a3 100644
--- a/plat/arm/board/tc/fdts/tc_tb_fw_config.dts
+++ b/plat/arm/board/tc/fdts/tc_tb_fw_config.dts
@@ -82,4 +82,7 @@
#endif
#endif /* ARM_BL2_SP_LIST_DTS */
};
+#if DICE_PROTECTION_ENVIRONMENT
+ #include "dice_prot_env.dtsi"
+#endif
};