tree 51dc125dea627063da95085ecb2499a522dc9467
parent 52bb3f94597bd9fb20d85050e9ea34dc89726922
author Andrew Scull <ascull@google.com> 1532956554 +0100
committer Andrew Scull <ascull@google.com> 1532963643 +0100

Only allow identity memory mapping

The code has the assumption that virtual addresses are mapped to the
same physical address but the mm function would allow this assumption to
be broken. Only offering identity mapping function avoids this problem
by enforcing assumption.

Non-identity mapping can still be added later if there proves to be a
need for it.

Change-Id: Ie3db41e1582c72d880275acdb48cabefe05b3ba0