tz_context.c

00001 /*
00002  * Copyright (c) 2017, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  * not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include "tz_context.h"
00019 #include <stdint.h>
00020 
00021 /* Provide do-nothing stubs for RTX's trustzone context saving hooks. uVisor
00022  * doesn't use these on ARMv8-M. */
00023 
00024 uint32_t TZ_InitContextSystem_S(void) {
00025     return 1; /* Success */
00026 }
00027 
00028 TZ_MemoryId_t TZ_AllocModuleContext_S(TZ_ModuleId_t module) {
00029     return 1; /* Always hand out slot 1. */
00030 }
00031 
00032 uint32_t TZ_FreeModuleContext_S(TZ_MemoryId_t id) {
00033     return 1; /* Success */
00034 }
00035 
00036 uint32_t TZ_LoadContext_S(TZ_MemoryId_t id) {
00037     return 1; /* Success */
00038 }
00039 
00040 uint32_t TZ_StoreContext_S(TZ_MemoryId_t id) {
00041     return 1; /* Success */
00042 }