257e22bf38
Clearing fields in the region descriptor attributes doesn't always have the expected effect of revoking permissions. In the case of bus master supervisor mode fields (MxSM), setting to zero actually enables read, write, and execute access. When we reworked handling of region descriptor 0, we inadvertently enabled execution from RAM by clearing the MxSM fields and enabling the descriptor. This caused samples/mpu_test run to throw a usage fault instead of an MPU-triggered bus fault. Fix this by setting all the MxSM fields to 2'b11, which gives supervisor mode the same access as user mode. Signed-off-by: Maureen Helm <maureen.helm@nxp.com> |
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| .. | ||
| arm_core_mpu_dev.h | ||
| arm_core_mpu.h | ||
| arm_mpu.h | ||
| nxp_mpu.h | ||