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TARGET_DISCO_L053C8/tz_context.h
- Committer:
- AnnaBridge
- Date:
- 2017-06-21
- Revision:
- 145:64910690c574
- Child:
- 169:a7c7b631e539
File content as of revision 145:64910690c574:
/* * Copyright (c) 2015-2016 ARM Limited. All rights reserved. * * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the License); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an AS IS BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * ---------------------------------------------------------------------------- * * $Date: 21. September 2016 * $Revision: V1.0 * * Project: TrustZone for ARMv8-M * Title: Context Management for ARMv8-M TrustZone * * Version 1.0 * Initial Release *---------------------------------------------------------------------------*/ #ifndef TZ_CONTEXT_H #define TZ_CONTEXT_H #include <stdint.h> #ifndef TZ_MODULEID_T #define TZ_MODULEID_T /// \details Data type that identifies secure software modules called by a process. typedef uint32_t TZ_ModuleId_t; #endif /// \details TZ Memory ID identifies an allocated memory slot. typedef uint32_t TZ_MemoryId_t; /// Initialize secure context memory system /// \return execution status (1: success, 0: error) uint32_t TZ_InitContextSystem_S (void); /// Allocate context memory for calling secure software modules in TrustZone /// \param[in] module identifies software modules called from non-secure mode /// \return value != 0 id TrustZone memory slot identifier /// \return value 0 no memory available or internal error TZ_MemoryId_t TZ_AllocModuleContext_S (TZ_ModuleId_t module); /// Free context memory that was previously allocated with \ref TZ_AllocModuleContext_S /// \param[in] id TrustZone memory slot identifier /// \return execution status (1: success, 0: error) uint32_t TZ_FreeModuleContext_S (TZ_MemoryId_t id); /// Load secure context (called on RTOS thread context switch) /// \param[in] id TrustZone memory slot identifier /// \return execution status (1: success, 0: error) uint32_t TZ_LoadContext_S (TZ_MemoryId_t id); /// Store secure context (called on RTOS thread context switch) /// \param[in] id TrustZone memory slot identifier /// \return execution status (1: success, 0: error) uint32_t TZ_StoreContext_S (TZ_MemoryId_t id); #endif // TZ_CONTEXT_H