| Alex Liang | 1d40d72 | 2024-07-23 16:42:16 -0500 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2024, Arm Limited. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arg_struct_def.h> |
| 8 | #include "constraint.h" |
| 9 | #include <fuzz_names.h> |
| 10 | #include <vendor_fuzz_helper.h> |
| 11 | |
| 12 | #include <lib/tftf_lib.h> |
| 13 | #include <runtime_services/ven_el3_svc.h> |
| 14 | #include <smccc.h> |
| 15 | #include <uuid_utils.h> |
| 16 | |
| 17 | /* |
| 18 | * Vendor-Specific EL3 UUID as returned by the implementation in the Trusted |
| 19 | * Firmware. |
| 20 | */ |
| 21 | static const uuid_t armtf_ven_el3_svc_uuid = { |
| 22 | {0xb6, 0x01, 0x1d, 0xca}, |
| 23 | {0x57, 0xc4}, |
| 24 | {0x40, 0x7e}, |
| 25 | 0x83, 0xf0, |
| 26 | {0xa7, 0xed, 0xda, 0xf0, 0xdf, 0x6c} |
| 27 | }; |
| 28 | |
| 29 | void inputparameters_to_ven_el3_args(struct inputparameters inp, smc_args *args) |
| 30 | { |
| 31 | args->arg1 = inp.x1; |
| 32 | args->arg2 = inp.x2; |
| 33 | args->arg3 = inp.x3; |
| 34 | args->arg4 = inp.x4; |
| 35 | args->arg5 = inp.x5; |
| 36 | args->arg6 = inp.x6; |
| 37 | args->arg7 = inp.x7; |
| 38 | } |
| 39 | |
| 40 | void run_ven_el3_fuzz(int funcid, struct memmod *mmod) |
| 41 | { |
| 42 | if (funcid == ven_el3_svc_uuid_funcid) { |
| 43 | |
| 44 | smc_args ven_el3_svc_args; |
| 45 | smc_ret_values ret; |
| 46 | uuid_t ven_el3_svc_uuid; |
| 47 | char uuid_str[UUID_STR_SIZE]; |
| 48 | |
| 49 | /* Standard Service Call UID */ |
| 50 | ven_el3_svc_args.fid = VEN_EL3_SVC_UID; |
| 51 | struct inputparameters inp = generate_args(VEN_EL3_SVC_UUID_CALL, SMC_FUZZ_SANITY_LEVEL); |
| 52 | |
| 53 | inputparameters_to_ven_el3_args(inp, &ven_el3_svc_args); |
| 54 | |
| 55 | ret = tftf_smc(&ven_el3_svc_args); |
| 56 | |
| 57 | make_uuid_from_4words(&ven_el3_svc_uuid, |
| 58 | ret.ret0, ret.ret1, ret.ret2, ret.ret3); |
| 59 | |
| 60 | if (!uuid_equal(&ven_el3_svc_uuid, &armtf_ven_el3_svc_uuid)) { |
| 61 | tftf_testcase_printf("Wrong UUID: expected %s,\n", |
| 62 | uuid_to_str(&armtf_ven_el3_svc_uuid, uuid_str)); |
| 63 | tftf_testcase_printf(" got %s\n", |
| 64 | uuid_to_str(&ven_el3_svc_uuid, uuid_str)); |
| 65 | } else { |
| 66 | #ifdef SMC_FUZZER_DEBUG |
| 67 | printf("Correct UUID: got %s,\n", |
| 68 | uuid_to_str(&ven_el3_svc_uuid, uuid_str)); |
| 69 | #endif |
| 70 | } |
| 71 | } else if (funcid == ven_el3_svc_count_funcid) { |
| 72 | smc_args ven_el3_svc_args; |
| 73 | smc_ret_values ret; |
| 74 | |
| 75 | ven_el3_svc_args.fid = VEN_EL3_SVC_UID + 1; |
| 76 | struct inputparameters inp = generate_args(VEN_EL3_SVC_COUNT_CALL, SMC_FUZZ_SANITY_LEVEL); |
| 77 | |
| 78 | inputparameters_to_ven_el3_args(inp, &ven_el3_svc_args); |
| 79 | |
| 80 | ret = tftf_smc(&ven_el3_svc_args); |
| 81 | |
| 82 | if (ret.ret0 != SMC_UNKNOWN) { |
| 83 | tftf_testcase_printf("Querying Vendor-Specific el3 service call count" |
| 84 | " which is reserved failed\n"); |
| 85 | } else { |
| 86 | #ifdef SMC_FUZZER_DEBUG |
| 87 | printf("Querying Vendor-Specific el3 service call count" |
| 88 | " got %ld\n", ret.ret0); |
| 89 | #endif |
| 90 | } |
| 91 | } else if (funcid == ven_el3_svc_version_funcid) { |
| 92 | smc_args ven_el3_svc_args; |
| 93 | smc_ret_values ret; |
| 94 | |
| 95 | ven_el3_svc_args.fid = VEN_EL3_SVC_VERSION; |
| 96 | struct inputparameters inp = generate_args(VEN_EL3_SVC_UUID_CALL, SMC_FUZZ_SANITY_LEVEL); |
| 97 | |
| 98 | inputparameters_to_ven_el3_args(inp, &ven_el3_svc_args); |
| 99 | |
| 100 | ret = tftf_smc(&ven_el3_svc_args); |
| 101 | |
| 102 | if ((ret.ret0 != VEN_EL3_SVC_VERSION_MAJOR) || |
| 103 | (ret.ret1 != VEN_EL3_SVC_VERSION_MINOR)) { |
| 104 | tftf_testcase_printf( |
| 105 | "Vendor Specific El3 service reported wrong version: expected {%u.%u}, got {%llu.%llu}\n", |
| 106 | VEN_EL3_SVC_VERSION_MAJOR, VEN_EL3_SVC_VERSION_MINOR, |
| 107 | (unsigned long long)ret.ret0, |
| 108 | (unsigned long long)ret.ret1); |
| 109 | } |
| 110 | } |
| 111 | } |