You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
2.7 KiB
71 lines
2.7 KiB
2 years ago
|
/******************************************************************************
|
||
|
|
* @file tz_context.h
|
||
|
|
* @brief Context Management for Armv8-M TrustZone
|
||
|
|
* @version V1.0.1
|
||
|
|
* @date 10. January 2018
|
||
|
|
******************************************************************************/
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2017-2018 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined ( __ICCARM__ )
|
||
|
|
#pragma system_include /* treat file as system include file for MISRA check */
|
||
|
|
#elif defined (__clang__)
|
||
|
|
#pragma clang system_header /* treat file as system include file */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#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
|