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/*
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* FreeRTOS V202212.00
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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/* Standard includes. */
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#include <stdint.h>
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#include <arm_cmse.h>
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/* Interface includes. */
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#include "secure_reg_test_asm.h"
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/* FreeRTOS includes. */
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#include "secure_port_macros.h"
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/* typedef for non-secure callback function. */
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typedef RegTestCallback_t NonSecureRegTestCallback_t __attribute__( ( cmse_nonsecure_call ) );
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/*-----------------------------------------------------------*/
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secureportNON_SECURE_CALLABLE void vRegTestAsm_Secure( void )
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{
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__asm volatile
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(
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".syntax unified \n"
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" \n"
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" /* Store callee saved registers. */ \n"
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" push { r4-r7 } \n"
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" mov r0, r8 \n"
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" mov r1, r9 \n"
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" mov r2, r10 \n"
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" mov r3, r11 \n"
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" mov r4, r12 \n"
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" push { r0-r4 } \n"
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" \n"
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" /* Fill the core registers with known values. */ \n"
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" movs r1, #201 \n"
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" movs r2, #202 \n"
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" movs r3, #203 \n"
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" movs r4, #204 \n"
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" movs r5, #205 \n"
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" movs r6, #206 \n"
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" movs r7, #207 \n"
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" movs r0, #208 \n"
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" mov r8, r0 \n"
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" movs r0, #209 \n"
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" mov r9, r0 \n"
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" movs r0, #210 \n"
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" mov r10, r0 \n"
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" movs r0, #211 \n"
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" mov r11, r0 \n"
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" movs r0, #212 \n"
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" mov r12, r0 \n"
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" movs r0, #200 \n"
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" \n"
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" /* Force a context switch by pending non-secure sv. */ \n"
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" push { r0, r1 } \n"
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" movs r0, #0x01 \n"
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" ldr r1, =0xe002ed04 \n" /* NVIC_ICSR_NS. */
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" lsls r0, #28 \n" /* Shift to PendSV bit. */
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" str r0, [r1] \n"
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" dsb \n"
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" pop { r0, r1 } \n"
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" \n"
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" /* Verify that core registers contain correct values. */ \n"
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" cmp r0, #200 \n"
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" bne secure_reg_test_error_loop \n"
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" cmp r1, #201 \n"
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" bne secure_reg_test_error_loop \n"
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" cmp r2, #202 \n"
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" bne secure_reg_test_error_loop \n"
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" cmp r3, #203 \n"
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" bne secure_reg_test_error_loop \n"
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" cmp r4, #204 \n"
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" bne secure_reg_test_error_loop \n"
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" cmp r5, #205 \n"
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" bne secure_reg_test_error_loop \n"
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" cmp r6, #206 \n"
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" bne secure_reg_test_error_loop \n"
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" cmp r7, #207 \n"
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" bne secure_reg_test_error_loop \n"
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" movs r0, #208 \n"
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" cmp r8, r0 \n"
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" bne secure_reg_test_error_loop \n"
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" movs r0, #209 \n"
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" cmp r9, r0 \n"
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" bne secure_reg_test_error_loop \n"
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" movs r0, #210 \n"
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" cmp r10, r0 \n"
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" bne secure_reg_test_error_loop \n"
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" movs r0, #211 \n"
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" cmp r11, r0 \n"
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" bne secure_reg_test_error_loop \n"
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" movs r0, #212 \n"
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" cmp r12, r0 \n"
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" bne secure_reg_test_error_loop \n"
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" \n"
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" /* Everything passed, finish. */ \n"
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" b secure_reg_test_success \n"
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" \n"
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"secure_reg_test_error_loop: \n"
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" /* If this line is hit then there was an error in \n"
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" * a core register value. The loop ensures the \n"
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" * loop counter stops incrementing. */ \n"
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" b secure_reg_test_error_loop \n"
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" nop \n"
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" \n"
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"secure_reg_test_success: \n"
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" /* Restore callee saved registers. */ \n"
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" pop { r0-r4 } \n"
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" mov r8, r0 \n"
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" mov r9, r1 \n"
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" mov r10, r2 \n"
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" mov r11, r3 \n"
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" mov r12, r4 \n"
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" pop { r4-r7 } \n"
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);
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}
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/*-----------------------------------------------------------*/
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secureportNON_SECURE_CALLABLE void vRegTest_NonSecureCallback( RegTestCallback_t pxRegTestCallback )
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{
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NonSecureRegTestCallback_t pxNonSecureRegTestCallback;
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/* Return function pointer with cleared LSB. */
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pxNonSecureRegTestCallback = ( NonSecureRegTestCallback_t ) cmse_nsfptr_create( pxRegTestCallback );
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/* Invoke the callback which runs reg tests. */
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pxNonSecureRegTestCallback();
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}
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/*-----------------------------------------------------------*/
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@@ -0,0 +1,49 @@
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/*
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* FreeRTOS V202212.00
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
|
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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#ifndef SECURE_REG_TEST_ASM_H
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#define SECURE_REG_TEST_ASM_H
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/* Callback function pointer definition. */
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typedef void ( * RegTestCallback_t )( void );
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/**
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* @brief Function that implements reg tests for the secure side.
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*
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* This function is exported as "non-secure callable" and is called
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* from a FreeRTOS task on the non-secure side.
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*/
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void vRegTestAsm_Secure( void );
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/**
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* @brief Invokes the supplied reg test callback on the non-secure side.
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*
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* This function is exported as "non-secure callable" and is called
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* from a FreeRTOS task on the non-secure side..
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*/
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void vRegTest_NonSecureCallback( RegTestCallback_t pxRegTestCallback );
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#endif /* SECURE_REG_TEST_ASM_H */
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