From 70d986ddbbf56a20c7550c079dd4dc9462332594 Mon Sep 17 00:00:00 2001 From: Sayanta Pattanayak Date: Sat, 6 Mar 2021 11:43:06 +0530 Subject: [PATCH] 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 Signed-off-by: Marc Bonnici Change-Id: Ibb78a6a2e3847ce4ec74ce81a9bb61ce34fec24c --- lib/xlat_tables_v2/ro_xlat_tables.mk | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/lib/xlat_tables_v2/ro_xlat_tables.mk b/lib/xlat_tables_v2/ro_xlat_tables.mk index 7991e1afd..fb8a426bf 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 @@ else # if AArch64 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