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Gaurav Aggarwal ea9c26f524 Use highest numbered MPU regions for kernel ... ARMv7-M allows overlapping MPU regions. When 2 MPU regions overlap, the MPU configuration of the higher numbered MPU region is applied. For example, if a memory area is covered by 2 MPU regions 0 and 1, the memory permissions for MPU region 1 are applied. We use 5 MPU regions for kernel code and kernel data protections and leave the remaining for the application writer. We were using lowest numbered MPU regions (0-4) for kernel protections and leaving the remaining for the application writer. The application writer could configure those higher numbered MPU regions to override kernel protections. This commit changes the code to use highest numbered MPU regions for kernel protections and leave the remaining for the application writer. This ensures that the application writer cannot override kernel protections. We thank the SecLab team at Northeastern University for reporting this issue. Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>		2 years ago
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ARM7_AT91FR40008	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
ARM7_AT91SAM7S	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
ARM7_LPC23xx	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
ARM7_LPC2000	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
ARM_CA9	Include string.h at the top of portable/GCC/ARM_CA9/port.c to prevent memset() generating a warning. (#430)	3 years ago
ARM_CA53_64_BIT	fix alignment exception for ullPortInterruptNesting. (#317)	3 years ago
ARM_CA53_64_BIT_SRE	Update comments for the ARM_CA53_64_BIT_SRE port (#403)	3 years ago
ARM_CM0	Add configSYSTICK_CLOCK_HZ to Cortex-M0 ports (#484)	3 years ago
ARM_CM3	fix typo (#399)	3 years ago
ARM_CM3_MPU	Use highest numbered MPU regions for kernel	2 years ago
ARM_CM4F	fix typo (#399)	3 years ago
ARM_CM4_MPU	Use highest numbered MPU regions for kernel	2 years ago
ARM_CM7	Add Cortex M7 r0p1 Errata 837070 workaround to CM4_MPU ports (#513)	3 years ago
ARM_CM23	Add .syntax unified to GCC assembly functions (#538)	3 years ago
ARM_CM23_NTZ/non_secure	Add .syntax unified to GCC assembly functions (#538)	3 years ago
ARM_CM33	Add .syntax unified to GCC assembly functions (#538)	3 years ago
ARM_CM33_NTZ/non_secure	Add .syntax unified to GCC assembly functions (#538)	3 years ago
ARM_CM55	Add .syntax unified to GCC assembly functions (#538)	3 years ago
ARM_CM55_NTZ/non_secure	Add .syntax unified to GCC assembly functions (#538)	3 years ago
ARM_CM85	M85 support (#556)	2 years ago
ARM_CM85_NTZ/non_secure	M85 support (#556)	2 years ago
ARM_CR5	fix typo (#399)	3 years ago
ARM_CRx_No_GIC	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
ATMega323	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
AVR32_UC3	Update license text for ports that were previously missed.	4 years ago
AVR_AVRDx	Remove AVR ports from main repo (#394)	3 years ago
AVR_Mega0	Remove AVR ports from main repo (#394)	3 years ago
CORTUS_APS3	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
ColdFire_V2	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
H8S2329	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
HCS12	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
IA32_flat	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
MCF5235	Replace two dashes and one whitespace with their corresponding ASCII characters. (#362)	4 years ago
MSP430F449	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
MicroBlaze	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
MicroBlazeV8	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
MicroBlazeV9	Add vPortRemoveInterruptHandler API (#533)	3 years ago
NiosII	Fix: Interrut Handler Register Function and Exception Process (#41)	3 years ago
PPC405_Xilinx	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
PPC440_Xilinx	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
RISC-V	RISC-V: Add support for RV32E extension in GCC port (#543)	3 years ago
RL78	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
RX100	Fix GCC/RX100 function naming error. (#440)	3 years ago
RX200	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
RX600	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
RX600v2	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
RX700v3_DPFPU	Add SPDX-License-Identifier: MIT to MIT licensed files.	4 years ago
STR75x	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago
TriCore_1782	Normalize files with mixed line endings (introduced in commit 3a413d1)	4 years ago