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Diffstat (limited to 'Drivers/CMSIS/Core/Include/pac_armv81.h')
| -rw-r--r-- | Drivers/CMSIS/Core/Include/pac_armv81.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/Drivers/CMSIS/Core/Include/pac_armv81.h b/Drivers/CMSIS/Core/Include/pac_armv81.h new file mode 100644 index 0000000..854b60a --- /dev/null +++ b/Drivers/CMSIS/Core/Include/pac_armv81.h @@ -0,0 +1,206 @@ +/****************************************************************************** + * @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 */ |