feat(fvp): mock support for CCA NV ctr
AEM FVP does not have a third CCA NV counter so the
implementation will fake it by returning the Trusted
NV counter value when the caller requests the CCA NV
counter. This allows us to use the CCA CoT on AEM FVP
nonetheless.
The FVP platform port now gets its own version of
plat_get_nv_ctr() as it now need to diverge from the
common implementation provided at the Arm development
platforms level.
Change-Id: I3258f837249a539d943d6d783406ba222bd4554e
Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
diff --git a/plat/arm/board/common/board_common.mk b/plat/arm/board/common/board_common.mk
index d73c2e3..777784d 100644
--- a/plat/arm/board/common/board_common.mk
+++ b/plat/arm/board/common/board_common.mk
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
@@ -67,11 +67,16 @@
# ARM development platforms
TFW_NVCTR_VAL ?= 31
NTFW_NVCTR_VAL ?= 223
+# The CCA Non-Volatile Counter only exists on some Arm development platforms.
+# On others, we mock it by aliasing it to the Trusted Firmware Non-Volatile counter,
+# hence we set both counters to the same default value.
+CCAFW_NVCTR_VAL ?= 31
else
# Certificate NV-Counters when CryptoCell is integrated. For development
# platforms we set the counter to first valid value.
TFW_NVCTR_VAL ?= 0
NTFW_NVCTR_VAL ?= 0
+CCAFW_NVCTR_VAL ?= 0
endif
BL1_SOURCES += plat/arm/board/common/board_arm_trusted_boot.c \
${ARM_ROTPK_S}