source: ecs_cellMon/firmware/Drivers/CMSIS/Include/tz_context.h @ 3

Last change on this file since 3 was 3, checked in by f.jahn, 20 months ago

fw hinzugfügt-->zed

File size: 2.7 KB
Line 
1/******************************************************************************
2 * @file     tz_context.h
3 * @brief    Context Management for Armv8-M TrustZone
4 * @version  V1.0.1
5 * @date     10. January 2018
6 ******************************************************************************/
7/*
8 * Copyright (c) 2017-2018 Arm Limited. All rights reserved.
9 *
10 * SPDX-License-Identifier: Apache-2.0
11 *
12 * Licensed under the Apache License, Version 2.0 (the License); you may
13 * not use this file except in compliance with the License.
14 * You may obtain a copy of the License at
15 *
16 * www.apache.org/licenses/LICENSE-2.0
17 *
18 * Unless required by applicable law or agreed to in writing, software
19 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
20 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21 * See the License for the specific language governing permissions and
22 * limitations under the License.
23 */
24
25#if   defined ( __ICCARM__ )
26  #pragma system_include         /* treat file as system include file for MISRA check */
27#elif defined (__clang__)
28  #pragma clang system_header   /* treat file as system include file */
29#endif
30
31#ifndef TZ_CONTEXT_H
32#define TZ_CONTEXT_H
33 
34#include <stdint.h>
35 
36#ifndef TZ_MODULEID_T
37#define TZ_MODULEID_T
38/// \details Data type that identifies secure software modules called by a process.
39typedef uint32_t TZ_ModuleId_t;
40#endif
41 
42/// \details TZ Memory ID identifies an allocated memory slot.
43typedef uint32_t TZ_MemoryId_t;
44 
45/// Initialize secure context memory system
46/// \return execution status (1: success, 0: error)
47uint32_t TZ_InitContextSystem_S (void);
48 
49/// Allocate context memory for calling secure software modules in TrustZone
50/// \param[in]  module   identifies software modules called from non-secure mode
51/// \return value != 0 id TrustZone memory slot identifier
52/// \return value 0    no memory available or internal error
53TZ_MemoryId_t TZ_AllocModuleContext_S (TZ_ModuleId_t module);
54 
55/// Free context memory that was previously allocated with \ref TZ_AllocModuleContext_S
56/// \param[in]  id  TrustZone memory slot identifier
57/// \return execution status (1: success, 0: error)
58uint32_t TZ_FreeModuleContext_S (TZ_MemoryId_t id);
59 
60/// Load secure context (called on RTOS thread context switch)
61/// \param[in]  id  TrustZone memory slot identifier
62/// \return execution status (1: success, 0: error)
63uint32_t TZ_LoadContext_S (TZ_MemoryId_t id);
64 
65/// Store secure context (called on RTOS thread context switch)
66/// \param[in]  id  TrustZone memory slot identifier
67/// \return execution status (1: success, 0: error)
68uint32_t TZ_StoreContext_S (TZ_MemoryId_t id);
69 
70#endif  // TZ_CONTEXT_H
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