1 /*
2 * Copyright (c) 2001-2019, Arm Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7
8
9 /************* Include Files ****************/
10 #include "cc_pal_buff_attr.h"
11 #include "cc_hal_plat.h"
12 #include "dx_id_registers.h"
13 #include "dx_crys_kernel.h"
14 #include "cc_regs.h"
15 #ifdef ARCH_V8M
16 #include <arm_cmse.h>
17 #endif
18 /************************ Defines ******************************/
19
20 /************************ Enums ******************************/
21
22 /************************ Typedefs ******************************/
23
24 /************************ Global Data ******************************/
25
26 /************************ Private Functions ******************************/
27
28 /************************ Public Functions ******************************/
29 #ifdef ARCH_V8M
CC_PalDataBufferAttrGet(const unsigned char * pDataBuffer,size_t buffSize,uint8_t buffType,uint8_t * pBuffNs)30 CCError_t CC_PalDataBufferAttrGet(const unsigned char *pDataBuffer, /*!< [in] Address of the buffer to map. */
31 size_t buffSize, /*!< [in] Buffer size in bytes. */
32 uint8_t buffType, /* ! [in] Input for read / output for write */
33 uint8_t *pBuffNs /*!< [out] HNONSEC buffer attribute (0 for secure, 1 for non-secure) */
34 )
35 {
36 cmse_address_info_t addInfo;
37 CC_UNUSED_PARAM(buffSize);
38 CC_UNUSED_PARAM(buffType);
39 *pBuffNs = DATA_BUFFER_IS_SECURE;
40
41 /* It is assumed that an object is allocated in a single MPU (Memory Protection Unit) region,
42 * so it is not needed to check the entire length of the buffer. */
43 addInfo = cmse_TT((unsigned char*)pDataBuffer);
44 if (addInfo.flags.secure == 0x00) {
45 *pBuffNs = DATA_BUFFER_IS_NONSECURE;
46 } else {
47 }
48
49 return CC_OK;
50 }
51 #else
CC_PalDataBufferAttrGet(const unsigned char * pDataBuffer,size_t buffSize,uint8_t buffType,uint8_t * pBuffNs)52 CCError_t CC_PalDataBufferAttrGet(const unsigned char *pDataBuffer, /*!< [in] Address of the buffer to map. */
53 size_t buffSize, /*!< [in] Buffer size in bytes. */
54 uint8_t buffType, /* ! [in] Input for read / output for write */
55 uint8_t *pBuffNs /*!< [out] HNONSEC buffer attribute (0 for secure, 1 for non-secure) */
56 )
57 {
58 CC_UNUSED_PARAM(pDataBuffer);
59 CC_UNUSED_PARAM(buffSize);
60 CC_UNUSED_PARAM(buffType);
61
62 *pBuffNs = DATA_BUFFER_IS_SECURE;
63
64 return CC_OK;
65 }
66 #endif
67
