tree 3fe0fd8541aeeac4a724c30b4de8ec66b7208085
parent ee5418e9b71c70b74b9e26eb39248bcdee8e99c0
author Fuad Tabba <tabba@google.com> 1573819988 +0000
committer Fuad Tabba <tabba@google.com> 1575298996 +0000

Override read values from feature ID registers to reflect Hafnium support

Hafnium limits access to certain features to certain or to all VMs. When
querying available features in feature ID registers, the returned result should
reflect the supported features.

Reorganize how features are trapped so that the logic can be controlled in one
place rather than being spread out throughout the code.

Bug: 144415253
Bug: 144898870
Change-Id: Id13fdcd3fd50beb70bbd51a3de15e2c5e1003eb6