feat(rme): add xlat table library changes for FEAT_RME
FEAT_RME adds a new bit (NSE) in the translation table descriptor
to determine the Physical Address Space (PAS) of an EL3 stage 1
translation according to the following mapping:
TTD.NSE TTD.NS | PAS
=================================
0 0 | Secure
0 1 | Non-secure
1 0 | Root
1 1 | Realm
This patch adds modifications to version 2 of the translation table
library accordingly. Bits 4 and 5 in mmap attribute are used to
determine the PAS.
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I82790f6900b7a1ab9494c732eac7b9808a388103
diff --git a/lib/xlat_tables_v2/xlat_tables_utils.c b/lib/xlat_tables_v2/xlat_tables_utils.c
index 9fae7e9..df17386 100644
--- a/lib/xlat_tables_v2/xlat_tables_utils.c
+++ b/lib/xlat_tables_v2/xlat_tables_utils.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2021, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -95,7 +95,23 @@
? "-USER" : "-PRIV");
}
+#if ENABLE_RME
+ switch (desc & LOWER_ATTRS(EL3_S1_NSE | NS)) {
+ case 0ULL:
+ printf("-S");
+ break;
+ case LOWER_ATTRS(NS):
+ printf("-NS");
+ break;
+ case LOWER_ATTRS(EL3_S1_NSE):
+ printf("-RT");
+ break;
+ default: /* LOWER_ATTRS(EL3_S1_NSE | NS) */
+ printf("-RL");
+ }
+#else
printf(((LOWER_ATTRS(NS) & desc) != 0ULL) ? "-NS" : "-S");
+#endif
#ifdef __aarch64__
/* Check Guarded Page bit */