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when MPU_GAP_FILLING is configured, the default mpu entry (kernel read + kernel write) will be used to fill the gaps among mpu entires to avoid dynamic mpu region splitting. This will bring better performance in thread switch but fewer constraints on privileged codes. when MPU_GAP_FILLING is not configured, a sw-based mpu dynamic region splitting is used to bypass the limitation of no mpu region overlap in hardware. This approach will consume more hardware mpu entries and more time in thread switch. Signed-off-by: Wayne Ren <wei.ren@synopsys.com> |
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| CMakeLists.txt | ||
| Kconfig | ||