It's more efficient to pass a reference of the tester to the TableWalkers. In this way a table walk check is tested directly from the walkers instead of going through the MMU every time. Change-Id: I9820dbabb8b551981005a65efa54a76b1a027541 Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Richard Cooper <richard.cooper@arm.com>