1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/******************************************************************************
* @file pac_armv81.h
* @brief CMSIS PAC key functions for Armv8.1-M PAC extension
* @version V1.0.0
* @date 23. March 2022
******************************************************************************/
/*
* Copyright (c) 2022 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 PAC_ARMV81_H
#define PAC_ARMV81_H
/* ################### PAC Key functions ########################### */
/**
\ingroup CMSIS_Core_FunctionInterface
\defgroup CMSIS_Core_PacKeyFunctions PAC Key functions
\brief Functions that access the PAC keys.
@{
*/
#if (defined (__ARM_FEATURE_PAUTH) && (__ARM_FEATURE_PAUTH == 1))
/**
\brief read the PAC key used for privileged mode
\details Reads the PAC key stored in the PAC_KEY_P registers.
\param [out] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __get_PAC_KEY_P (uint32_t* pPacKey) {
__ASM volatile (
"mrs r1, pac_key_p_0\n"
"str r1,[%0,#0]\n"
"mrs r1, pac_key_p_1\n"
"str r1,[%0,#4]\n"
"mrs r1, pac_key_p_2\n"
"str r1,[%0,#8]\n"
"mrs r1, pac_key_p_3\n"
"str r1,[%0,#12]\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
/**
\brief write the PAC key used for privileged mode
\details writes the given PAC key to the PAC_KEY_P registers.
\param [in] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __set_PAC_KEY_P (uint32_t* pPacKey) {
__ASM volatile (
"ldr r1,[%0,#0]\n"
"msr pac_key_p_0, r1\n"
"ldr r1,[%0,#4]\n"
"msr pac_key_p_1, r1\n"
"ldr r1,[%0,#8]\n"
"msr pac_key_p_2, r1\n"
"ldr r1,[%0,#12]\n"
"msr pac_key_p_3, r1\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
/**
\brief read the PAC key used for unprivileged mode
\details Reads the PAC key stored in the PAC_KEY_U registers.
\param [out] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __get_PAC_KEY_U (uint32_t* pPacKey) {
__ASM volatile (
"mrs r1, pac_key_u_0\n"
"str r1,[%0,#0]\n"
"mrs r1, pac_key_u_1\n"
"str r1,[%0,#4]\n"
"mrs r1, pac_key_u_2\n"
"str r1,[%0,#8]\n"
"mrs r1, pac_key_u_3\n"
"str r1,[%0,#12]\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
/**
\brief write the PAC key used for unprivileged mode
\details writes the given PAC key to the PAC_KEY_U registers.
\param [in] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __set_PAC_KEY_U (uint32_t* pPacKey) {
__ASM volatile (
"ldr r1,[%0,#0]\n"
"msr pac_key_u_0, r1\n"
"ldr r1,[%0,#4]\n"
"msr pac_key_u_1, r1\n"
"ldr r1,[%0,#8]\n"
"msr pac_key_u_2, r1\n"
"ldr r1,[%0,#12]\n"
"msr pac_key_u_3, r1\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
#if (defined (__ARM_FEATURE_CMSE ) && (__ARM_FEATURE_CMSE == 3))
/**
\brief read the PAC key used for privileged mode (non-secure)
\details Reads the PAC key stored in the non-secure PAC_KEY_P registers when in secure mode.
\param [out] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __TZ_get_PAC_KEY_P_NS (uint32_t* pPacKey) {
__ASM volatile (
"mrs r1, pac_key_p_0_ns\n"
"str r1,[%0,#0]\n"
"mrs r1, pac_key_p_1_ns\n"
"str r1,[%0,#4]\n"
"mrs r1, pac_key_p_2_ns\n"
"str r1,[%0,#8]\n"
"mrs r1, pac_key_p_3_ns\n"
"str r1,[%0,#12]\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
/**
\brief write the PAC key used for privileged mode (non-secure)
\details writes the given PAC key to the non-secure PAC_KEY_P registers when in secure mode.
\param [in] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __TZ_set_PAC_KEY_P_NS (uint32_t* pPacKey) {
__ASM volatile (
"ldr r1,[%0,#0]\n"
"msr pac_key_p_0_ns, r1\n"
"ldr r1,[%0,#4]\n"
"msr pac_key_p_1_ns, r1\n"
"ldr r1,[%0,#8]\n"
"msr pac_key_p_2_ns, r1\n"
"ldr r1,[%0,#12]\n"
"msr pac_key_p_3_ns, r1\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
/**
\brief read the PAC key used for unprivileged mode (non-secure)
\details Reads the PAC key stored in the non-secure PAC_KEY_U registers when in secure mode.
\param [out] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __TZ_get_PAC_KEY_U_NS (uint32_t* pPacKey) {
__ASM volatile (
"mrs r1, pac_key_u_0_ns\n"
"str r1,[%0,#0]\n"
"mrs r1, pac_key_u_1_ns\n"
"str r1,[%0,#4]\n"
"mrs r1, pac_key_u_2_ns\n"
"str r1,[%0,#8]\n"
"mrs r1, pac_key_u_3_ns\n"
"str r1,[%0,#12]\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
/**
\brief write the PAC key used for unprivileged mode (non-secure)
\details writes the given PAC key to the non-secure PAC_KEY_U registers when in secure mode.
\param [in] pPacKey 128bit PAC key
*/
__STATIC_FORCEINLINE void __TZ_set_PAC_KEY_U_NS (uint32_t* pPacKey) {
__ASM volatile (
"ldr r1,[%0,#0]\n"
"msr pac_key_u_0_ns, r1\n"
"ldr r1,[%0,#4]\n"
"msr pac_key_u_1_ns, r1\n"
"ldr r1,[%0,#8]\n"
"msr pac_key_u_2_ns, r1\n"
"ldr r1,[%0,#12]\n"
"msr pac_key_u_3_ns, r1\n"
: : "r" (pPacKey) : "memory", "r1"
);
}
#endif /* (defined (__ARM_FEATURE_CMSE ) && (__ARM_FEATURE_CMSE == 3)) */
#endif /* (defined (__ARM_FEATURE_PAUTH) && (__ARM_FEATURE_PAUTH == 1)) */
/*@} end of CMSIS_Core_PacKeyFunctions */
#endif /* PAC_ARMV81_H */
|
