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/*
* Copyright (c) 2014-2016, 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 <arch.h>
#include <arch_helpers.h>
#include <debug.h>
#include <events.h>
#include <plat_topology.h>
#include <platform.h>
#include <power_management.h>
#include <psci.h>
#include <tftf_lib.h>
#include <trusted_os.h>
#include <tsp.h>
#include <uuid_utils.h>
#include <uuid.h>
#define TEST_ITERATIONS_COUNT 1000
static event_t cpu_has_entered_test[PLATFORM_CORE_COUNT];
/*
* This function calls and validates the results of TSP operation.
* It expects:
* - fn_identifier: SMC function identifier
* - arg1, arg2: data on which TSP performs operation
* - ret1, ret2: results expected after performing operation
* on arg1 and arg2
* Returns Success if return values of SMC operation are same as
* expected else failure.
*/
static test_result_t validate_tsp_operations(uint64_t fn_identifier,
uint64_t arg1,
uint64_t arg2,
uint64_t ret1,
uint64_t ret2)
{
smc_args tsp_svc_params = {fn_identifier, arg1, arg2};
smc_ret_values tsp_result;
tsp_result = tftf_smc(&tsp_svc_params);
if (tsp_result.ret0) {
tftf_testcase_printf("TSP operation 0x%x failed, error:0x%x\n",
(unsigned int) fn_identifier,
(unsigned int) tsp_result.ret0);
return TEST_RESULT_FAIL;
}
if (tsp_result.ret1 != ret1 || tsp_result.ret2 != ret2) {
tftf_testcase_printf("TSP function:0x%x returned wrong result:"
"got 0x%x 0x%x expected: 0x%x 0x%x\n",
(unsigned int)fn_identifier,
(unsigned int)tsp_result.ret1,
(unsigned int)tsp_result.ret2,
(unsigned int)ret1,
(unsigned int)ret2);
return TEST_RESULT_FAIL;
}
return TEST_RESULT_SUCCESS;
}
/*
* This function issues SMC calls to trusted OS(TSP) to perform basic mathematical
* operations supported by it and validates the result.
*/
static test_result_t issue_trustedos_service_calls(void)
{
unsigned int mpid = read_mpidr_el1() & MPID_MASK;
unsigned int core_pos = platform_get_core_pos(mpid);
test_result_t ret;
int i;
/* Signal to the lead CPU that the calling CPU has entered the test */
tftf_send_event(&cpu_has_entered_test[core_pos]);
for (i = 0; i < TEST_ITERATIONS_COUNT; i++) {
/*
* TSP add function performs addition of argx to itself and
* returns the result in argx where x is 1, 2
*/
ret = validate_tsp_operations(TSP_FAST_FID(TSP_ADD), 4, 6, 8, 12);
if (ret != TEST_RESULT_SUCCESS)
return ret;
/*
* TSP sub function performs substraction of argx to itself and
* returns the result in argx where x is 1, 2
*/
ret = validate_tsp_operations(TSP_FAST_FID(TSP_SUB), 4, 6, 0, 0);
if (ret != TEST_RESULT_SUCCESS)
return ret;
/*
* TSP mul function performs multiplication of argx to itself and
* returns the result in argx where x is 1, 2
*/
ret = validate_tsp_operations(TSP_FAST_FID(TSP_MUL), 4, 6, 16, 36);
if (ret != TEST_RESULT_SUCCESS)
return ret;
/*
* TSP div function performs division of argx to itself and
* returns the result in argx where x is 1, 2
*/
ret = validate_tsp_operations(TSP_FAST_FID(TSP_DIV), 4, 6, 1, 1);
if (ret != TEST_RESULT_SUCCESS)
return ret;
}
return ret;
}
/*
* @Test_Aim@ Stress test the tsp functionality by issuing fast smc calls
* to perform trusted OS operations on multiple CPUs
* Returns Success/Failure/Skipped (if Trusted OS is absent or is not TSP)
*/
test_result_t test_tsp_fast_smc_operations(void)
{
unsigned int lead_cpu = read_mpidr_el1() & MPID_MASK;
unsigned int cpu_mpid, cpu_node;
unsigned int core_pos;
uint32_t psci_ret;
test_result_t ret;
uuid_t tos_uuid;
char tos_uuid_str[UUID_STR_SIZE];
if (!is_trusted_os_present(&tos_uuid)) {
tftf_testcase_printf("No Trusted OS detected\n");
return TEST_RESULT_SKIPPED;
}
if (!uuid_equal(&tos_uuid, &tsp_uuid)) {
tftf_testcase_printf("Trusted OS is not the TSP, its UUID"
" is: %s\n", uuid_to_str(&tos_uuid,
tos_uuid_str));
return TEST_RESULT_SKIPPED;
}
for_each_cpu(cpu_node) {
cpu_mpid = tftf_get_mpidr_from_node(cpu_node);
if (cpu_mpid != lead_cpu)
psci_ret = tftf_cpu_on(cpu_mpid,
(uintptr_t)issue_trustedos_service_calls,
0);
if (psci_ret != PSCI_E_SUCCESS)
return TEST_RESULT_FAIL;
}
/* Wait for non-lead CPUs to enter the test */
for_each_cpu(cpu_node) {
cpu_mpid = tftf_get_mpidr_from_node(cpu_node);
/* Skip lead CPU */
if (cpu_mpid == lead_cpu)
continue;
core_pos = platform_get_core_pos(cpu_mpid);
tftf_wait_for_event(&cpu_has_entered_test[core_pos]);
}
ret = issue_trustedos_service_calls();
return ret;
}
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