commit 01987eec5427cce8b8bae76427a0a6f137ad8373
author Sayanta Pattanayak <sayanta.pattanayak@arm.com> Sat Mar 06 11:43:06 2021 +0530
committer Marc Bonnici <marc.bonnici@arm.com> Wed Apr 13 09:44:52 2022 +0100
tree ddeb62dddc44ead73286fbd8308055462e727c36
parent abaac16d8afdbde5d04113defa74f4da6d0a70d5

feat(spmc): prevent read only xlat tables with the EL3 SPMC

If using the EL3 SPMC ensure that we don't mark the translation
tables as read only. The SPMC requires the ability to map and
unmap a partitions RX/TX buffers at runtime.

Signed-off-by: Sayanta Pattanayak <sayanta.pattanayak@arm.com>
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: Ibb78a6a2e3847ce4ec74ce81a9bb61ce34fec24c

lib/xlat_tables_v2/ro_xlat_tables.mk

diff --git a/lib/xlat_tables_v2/ro_xlat_tables.mk b/lib/xlat_tables_v2/ro_xlat_tables.mk
index 7991e1a..fb8a426 100644
--- a/lib/xlat_tables_v2/ro_xlat_tables.mk
+++ b/lib/xlat_tables_v2/ro_xlat_tables.mk
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2020, ARM Limited. All rights reserved.
+# Copyright (c) 2020-2022, ARM Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -34,4 +34,8 @@
                  attributes, which is not possible once the translation tables \
                  have been made read-only.")
     endif
+    ifeq (${SPMC_AT_EL3},1)
+        $(error "EL3 SPMC requires functionality from the dynamic translation \
+                 library and is incompatible with ALLOW_RO_XLAT_TABLES.")
+    endif
 endif