lib/cpus: Report AT speculative erratum workaround
Reported the status (applies, missing) of AT speculative workaround
which is applicable for below CPUs.
+---------+--------------+
| Errata | CPU |
+=========+==============+
| 1165522 | Cortex-A76 |
+---------+--------------+
| 1319367 | Cortex-A72 |
+---------+--------------+
| 1319537 | Cortex-A57 |
+---------+--------------+
| 1530923 | Cortex-A55 |
+---------+--------------+
| 1530924 | Cortex-A53 |
+---------+--------------+
Also, changes are done to enable common macro 'ERRATA_SPECULATIVE_AT'
if AT speculative errata workaround is enabled for any of the above
CPUs using 'ERRATA_*' CPU specific build macro.
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I3e6a5316a2564071f3920c3ce9ae9a29adbe435b
diff --git a/lib/cpus/aarch64/cortex_a57.S b/lib/cpus/aarch64/cortex_a57.S
index 3fee470..8ef0f92 100644
--- a/lib/cpus/aarch64/cortex_a57.S
+++ b/lib/cpus/aarch64/cortex_a57.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2020, NVIDIA Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
@@ -396,6 +396,20 @@
ret
endfunc check_errata_cve_2018_3639
+ /* --------------------------------------------------
+ * Errata workaround for Cortex A57 Errata #1319537.
+ * This applies to all revisions of Cortex A57.
+ * --------------------------------------------------
+ */
+func check_errata_1319537
+#if ERRATA_A57_1319537
+ mov x0, #ERRATA_APPLIES
+#else
+ mov x0, #ERRATA_MISSING
+#endif
+ ret
+endfunc check_errata_1319537
+
/* -------------------------------------------------
* The CPU Ops reset function for Cortex-A57.
* Shall clobber: x0-x19
@@ -613,6 +627,7 @@
report_errata ERRATA_A57_829520, cortex_a57, 829520
report_errata ERRATA_A57_833471, cortex_a57, 833471
report_errata ERRATA_A57_859972, cortex_a57, 859972
+ report_errata ERRATA_A57_1319537, cortex_a57, 1319537
report_errata WORKAROUND_CVE_2017_5715, cortex_a57, cve_2017_5715
report_errata WORKAROUND_CVE_2018_3639, cortex_a57, cve_2018_3639