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Diffstat (limited to 'bl31/aarch64/bl31_entrypoint.S')
-rw-r--r--bl31/aarch64/bl31_entrypoint.S15
1 files changed, 14 insertions, 1 deletions
diff --git a/bl31/aarch64/bl31_entrypoint.S b/bl31/aarch64/bl31_entrypoint.S
index 2d672dd12..ed058648f 100644
--- a/bl31/aarch64/bl31_entrypoint.S
+++ b/bl31/aarch64/bl31_entrypoint.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -195,6 +195,19 @@ func bl31_warm_entrypoint
#endif
bl bl31_plat_enable_mmu
+#if ENABLE_RME
+ /*
+ * At warm boot GPT data structures have already been initialized in RAM
+ * but the sysregs for this CPU need to be initialized. Note that the GPT
+ * accesses are controlled attributes in GPCCR and do not depend on the
+ * SCR_EL3.C bit.
+ */
+ bl gpt_enable
+ cbz x0, 1f
+ no_ret plat_panic_handler
+1:
+#endif
+
#if ENABLE_PAUTH
/* --------------------------------------------------------------------
* Program APIAKey_EL1 and enable pointer authentication