fix(security): workaround for CVE-2022-23960 for A76AE, A78AE, A78C
Implements the loop workaround for Cortex-A76AE, Cortex-A78AE and
Cortex-A78C.
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
Change-Id: I5c838f5b9d595ed3c461a7452bd465bd54acc548
diff --git a/include/lib/cpus/aarch64/cortex_a78_ae.h b/include/lib/cpus/aarch64/cortex_a78_ae.h
index 0c8adcf..90b6d6f 100644
--- a/include/lib/cpus/aarch64/cortex_a78_ae.h
+++ b/include/lib/cpus/aarch64/cortex_a78_ae.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ * Copyright (c) 2019-2022, ARM Limited. All rights reserved.
* Copyright (c) 2021, NVIDIA Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
@@ -10,7 +10,10 @@
#include <cortex_a78.h>
-#define CORTEX_A78_AE_MIDR U(0x410FD420)
+#define CORTEX_A78_AE_MIDR U(0x410FD420)
+
+/* Cortex-A78AE loop count for CVE-2022-23960 mitigation */
+#define CORTEX_A78_AE_BHB_LOOP_COUNT U(32)
/*******************************************************************************
* CPU Extended Control register specific definitions.