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RISC-V Kernel Security Isolation #908

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amazonKamath opened this issue Nov 27, 2023 · 0 comments
Open

RISC-V Kernel Security Isolation #908

amazonKamath opened this issue Nov 27, 2023 · 0 comments
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@amazonKamath
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Add memory protection support to RISC-V port.
@amazonKamath amazonKamath converted this from a draft issue Nov 27, 2023
@amazonKamath amazonKamath added the roadmap An feature currently on the roadmap label Nov 27, 2023
vishwamartur added a commit to vishwamartur/FreeRTOS-Kernel that referenced this issue Nov 1, 2024
@vishwamartur
Add memory protection support to RISC-V port
8e434c1 
Related to FreeRTOS#908

Add memory protection support to the RISC-V port.

* **Memory Protection Configurations and Settings**
  - Add memory protection-related configurations and settings in `portable/GCC/RISC-V/portmacro.h` and `portable/IAR/RISC-V/portmacro.h`.
  - Define macros for enabling and disabling memory protection in both files.

* **Critical Section Handling**
  - Update the `portENTER_CRITICAL` and `portEXIT_CRITICAL` macros in `portable/GCC/RISC-V/portmacro.h` and `portable/IAR/RISC-V/portmacro.h` to handle memory protection.

* **Chip-Specific Extensions**
  - Add memory protection-related definitions and macros in `portable/GCC/RISC-V/chip_specific_extensions/RISCV_MTIME_CLINT_no_extensions/freertos_risc_v_chip_specific_extensions.h` and `portable/IAR/RISC-V/chip_specific_extensions/RV32I_CLINT_no_extensions/freertos_risc_v_chip_specific_extensions.h`.
  - Define macros for saving and restoring memory protection context in both files.

* **Port Functions**
  - Add functions for enabling and disabling memory protection in `portable/GCC/RISC-V/port.c` and `portable/IAR/RISC-V/port.c`.

Working on still: portASM.s planning to implement ASAP
@vishwamartur vishwamartur mentioned this issue Nov 1, 2024
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@aggarg @amazonKamath