Add test for reset2

This is an optional PSCI feature that allows to the caller
a bigger control about the type of reset used.

Change-Id: Ie7eddce11277e6f558f1c24cbc0dde5beb71d3de
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

1 files changed, 163 insertions, 0 deletions

diff --git a/tests/runtime_services/standard_service/psci/api_tests/reset2/reset2.c b/tests/runtime_services/standard_service/psci/api_tests/reset2/reset2.c
new file mode 100644
index 0000000..e2ee339
--- /dev/null
+++ b/tests/runtime_services/standard_service/psci/api_tests/reset2/reset2.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <psci.h>
+#include <stdlib.h>
+#include <test_helpers.h>
+#include <tftf_lib.h>
+
+#define SENTINEL		0x55
+#define INVALID_ARCH_RESET	0x00000001
+#define INVALID_VENDOR_RESET	0x80000002
+#define MEM_PROTECT_ENABLE	1
+#define MEM_PROTECT_DISABLE	0
+
+
+/*
+ * Test warm reset using PSCI RESET2 call (parameter 0)
+ * Returns:
+ * 	TEST_RESULT_SUCCESS: The system resets after calling RESET2
+ *	TEST_RESULT_FAIL: The RESET2 PSCI call failed
+ */
+test_result_t reset2_warm(void)
+{
+	smc_args args = { SMC_PSCI_RESET2, 0};
+	extern unsigned char __TFTF_END__[];
+	unsigned char value;
+	int ret;
+
+	ret = tftf_get_psci_feature_info(SMC_PSCI_RESET2);
+	if (ret == PSCI_E_NOT_SUPPORTED)
+		return TEST_RESULT_SKIPPED;
+
+	if (tftf_is_rebooted()) {
+		value = *__TFTF_END__;
+		if (value != SENTINEL) {
+			tftf_testcase_printf("Sentinel address modified\n");
+			return TEST_RESULT_FAIL;
+		}
+		return TEST_RESULT_SUCCESS;
+	}
+
+	*__TFTF_END__ = SENTINEL;
+
+
+	tftf_notify_reboot();
+	tftf_smc(&args);
+
+	/* The PSCI RESET2 call is not supposed to return */
+	tftf_testcase_printf("System didn't shutdown properly\n");
+	return TEST_RESULT_FAIL;
+}
+
+/*
+ * Test correct error handling
+ * Returns:
+ * 	TEST_RESULT_SUCCESS: If the system catches all the wrong calls
+ *	TEST_RESULT_FAIL: Some PSCI call failed
+ */
+test_result_t reset2_test_invalid(void)
+{
+	smc_args args = {SMC_PSCI_RESET2};
+	smc_ret_values ret_vals;
+	int ret;
+
+	ret = tftf_get_psci_feature_info(SMC_PSCI_RESET2);
+	if (ret == PSCI_E_NOT_SUPPORTED)
+		return TEST_RESULT_SKIPPED;
+
+	args.arg1 = INVALID_VENDOR_RESET;
+	ret_vals = tftf_smc(&args);
+	ret = ret_vals.ret0;
+
+	if (ret >= 0)
+		return TEST_RESULT_FAIL;
+
+	args.arg1 = INVALID_ARCH_RESET;
+	ret_vals = tftf_smc(&args);
+	ret = ret_vals.ret0;
+
+	if (ret >= 0)
+		return TEST_RESULT_FAIL;
+
+	return TEST_RESULT_SUCCESS;
+}
+
+/*
+ * Test combination of reset2 and mem_protect
+ * Returns:
+ *	TEST_RESULT_SUCCESS: if the system is reseted and mem_protect
+ *	                     is disabled.
+ *	TEST_RESULT_FAIL: Some PSCI call failed or mem_protect wasn't
+ *	                  disabled
+ */
+test_result_t reset2_mem_protect(void)
+{
+	int ret;
+	unsigned char value;
+	smc_args args = { SMC_PSCI_RESET2, 0};
+	extern unsigned char __TFTF_END__[];
+
+	ret = tftf_get_psci_feature_info(SMC_PSCI_RESET2);
+	if (ret == PSCI_E_NOT_SUPPORTED)
+		return TEST_RESULT_SKIPPED;
+
+	ret = tftf_get_psci_feature_info(SMC_PSCI_MEM_PROTECT);
+	if (ret == PSCI_E_NOT_SUPPORTED)
+		return TEST_RESULT_SKIPPED;
+
+	if (tftf_is_rebooted()) {
+		if (psci_mem_protect(0) != MEM_PROTECT_DISABLE) {
+			tftf_testcase_printf("mem_protect is not disabled");
+			return TEST_RESULT_SUCCESS;
+		}
+		value = *__TFTF_END__;
+		if (value != SENTINEL) {
+			tftf_testcase_printf("Sentinel address modified\n");
+			return TEST_RESULT_FAIL;
+		}
+		return TEST_RESULT_SUCCESS;
+	}
+
+	*__TFTF_END__ = SENTINEL;
+
+	ret = psci_mem_protect(0);
+	if (ret != MEM_PROTECT_ENABLE && ret != MEM_PROTECT_DISABLE) {
+		tftf_testcase_printf("error calling mem_protect");
+		return TEST_RESULT_FAIL;
+	}
+
+	tftf_notify_reboot();
+	tftf_smc(&args);
+
+	/* The PSCI RESET2 call is not supposed to return */
+	tftf_testcase_printf("System didn't shutdown properly\n");
+	return TEST_RESULT_FAIL;
+}