1 /*
2 * Copyright (c) 2022 Arm Limited (or its affiliates). All rights reserved.
3 * SPDX-License-Identifier: Apache-2.0
4 */
5
6 #include <zephyr/ztest.h>
7
8 #include <zephyr/arch/arm64/arm-smccc.h>
9
10 /* SMC function IDs for Standard Service queries */
11 #define ARM_STD_SMC_CALL_COUNT 0x8400ff00UL
12 #define ARM_STD_SMC_VERSION 0x8400ff03UL
13 #define ARM_STD_SMC_UNKNOWN 0xffffffffUL
14
15 #define SMC_UNK -1
16
17 typedef void (*smc_call_method_t)(unsigned long, unsigned long,
18 unsigned long, unsigned long,
19 unsigned long, unsigned long,
20 unsigned long, unsigned long,
21 struct arm_smccc_res *);
22
23 #ifdef CONFIG_SMC_CALL_USE_HVC
24 smc_call_method_t smc_call = arm_smccc_hvc;
25 #else
26 smc_call_method_t smc_call = arm_smccc_smc;
27 #endif
28
ZTEST(arm64_smc_call,test_smc_call_func)29 ZTEST(arm64_smc_call, test_smc_call_func)
30 {
31 struct arm_smccc_res res;
32
33 smc_call(ARM_STD_SMC_CALL_COUNT, 0, 0, 0, 0, 0, 0, 0, &res);
34 zassert_true(res.a0 > 0, "Wrong smc call count");
35
36 smc_call(ARM_STD_SMC_VERSION, 0, 0, 0, 0, 0, 0, 0, &res);
37 zassert_true((res.a0 >= 0 && res.a1 >= 0),
38 "Wrong smc call version");
39
40 smc_call(ARM_STD_SMC_UNKNOWN, 0, 0, 0, 0, 0, 0, 0, &res);
41 zassert_true(res.a0 == SMC_UNK, "Wrong return code from smc call");
42 }
43
44 ZTEST_SUITE(arm64_smc_call, NULL, NULL, NULL, NULL, NULL);
45
