tree 1b7a10c3726e6803ea176486ca3e22522f478e46
parent 69520dc3921bdfb24eb858006e7117de67514779
author Andrew Scull <ascull@google.com> 1544438845 +0000
committer Andrew Scull <ascull@google.com> 1544456089 +0000

Correct aarch64 PTE attribute handling.

Not all the non-address bits are attribute bits so the mask needs to
exclude those that are not. This was causing mapping to miss the case
when then entry is already in place as the attributes appeared
different.

Other cases continued to work by luck as the extra included bits did not
interfere with behaviour.

Change-Id: I8384e952cd964e245097d72909999ce6599c3736