tree aa5c4cb3417925c6a7f986c5db38c93bf5752530
parent 9a0e7ea39063e3898294a73b7fb5d386ae922fe8
author Fuad Tabba <tabba@google.com> 1572968303 +0000
committer Fuad Tabba <tabba@google.com> 1573047508 +0000

Trap EL1 accesses to Statistical Profling Extension registers

Statistical Profiling Extention (SPE) registers could expose side-channels.
Hafnium would also need to implement a proper context switching to handle them.

Trap accesses until there is an SPE-capable target on the horizon.

Bug: 141600635
Change-Id: Ia5bf5b20411735abfdd9042e8c93d5b12f578506