207 lines
5.9 KiB
C
207 lines
5.9 KiB
C
/******************************************************************************
|
|
* @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 */
|