From e62b67b7d9fb2b97d4a03b83584c1c39aa162b27 Mon Sep 17 00:00:00 2001
From: Manish Pandey <manish.pandey2@arm.com>
Date: Mon, 27 Feb 2023 15:21:26 +0000
Subject: feat(ras): introduce RAS KFH support test

Introduce a test to verify Kernel first handling of RAS errors.
Error is injected and handled in tftf, there is no EL3 involvement.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: Iaf93247647bf8b749cba5ea42fd819dee675b04b
---
 tftf/tests/misc_tests/test_ras_kfh.c | 52 ++++++++++++++++++++++++++++++++++++
 tftf/tests/tests-ras-kfh.mk          | 10 +++++++
 tftf/tests/tests-ras-kfh.xml         | 13 +++++++++
 3 files changed, 75 insertions(+)
 create mode 100644 tftf/tests/misc_tests/test_ras_kfh.c
 create mode 100644 tftf/tests/tests-ras-kfh.mk
 create mode 100644 tftf/tests/tests-ras-kfh.xml

diff --git a/tftf/tests/misc_tests/test_ras_kfh.c b/tftf/tests/misc_tests/test_ras_kfh.c
new file mode 100644
index 0000000..b38d6c4
--- /dev/null
+++ b/tftf/tests/misc_tests/test_ras_kfh.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2023, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+
+#include <arch_helpers.h>
+#include <serror.h>
+#include <tftf_lib.h>
+
+#ifdef __aarch64__
+static volatile uint64_t serror_triggered;
+extern void inject_unrecoverable_ras_error(void);
+
+static bool serror_handler(void)
+{
+	serror_triggered = 1;
+	return true;
+}
+
+/*
+ * Test Kernel First handling paradigm of RAS errors.
+ *
+ * Register a custom serror handler in tftf, inject a RAS error and wait
+ * for finite time to ensure that SError triggered and handled.
+ */
+test_result_t test_ras_kfh(void)
+{
+	register_custom_serror_handler(serror_handler);
+	inject_unrecoverable_ras_error();
+
+	/* Give reasonable time for SError to be triggered/handled */
+	waitms(500);
+
+	unregister_custom_serror_handler();
+
+	if (serror_triggered == false) {
+		tftf_testcase_printf("SError is not triggered\n");
+		return TEST_RESULT_FAIL;
+	}
+
+	return TEST_RESULT_SUCCESS;
+}
+#else
+test_result_t test_ras_kfh(void)
+{
+	tftf_testcase_printf("Not supported on AArch32.\n");
+	return TEST_RESULT_SKIPPED;
+}
+
+#endif
diff --git a/tftf/tests/tests-ras-kfh.mk b/tftf/tests/tests-ras-kfh.mk
new file mode 100644
index 0000000..e79db93
--- /dev/null
+++ b/tftf/tests/tests-ras-kfh.mk
@@ -0,0 +1,10 @@
+#
+# Copyright (c) 2023, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+TESTS_SOURCES	+=	$(addprefix tftf/tests/misc_tests/,		\
+	inject_ras_error.S 						\
+	test_ras_kfh.c							\
+)
diff --git a/tftf/tests/tests-ras-kfh.xml b/tftf/tests/tests-ras-kfh.xml
new file mode 100644
index 0000000..3cfed49
--- /dev/null
+++ b/tftf/tests/tests-ras-kfh.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  Copyright (c) 2023, Arm Limited. All rights reserved.
+
+  SPDX-License-Identifier: BSD-3-Clause
+-->
+
+<testsuites>
+  <testsuite name="RAS KFH" description="RAS errors handled through Kernel First handling">
+     <testcase name="Inject RAS error and wait for it being handled" function="test_ras_kfh" />
+  </testsuite>
+</testsuites>
-- 
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