The implementation is empty and this is not used by other protocols Change-Id: Iaed7d6d4b7ef1eb4cd47bdc0710dc9dbb7a86a0c Signed-off-by: Tiago Mück <tiago.muck@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/21923 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Pouya Fotouhi <pfotouhi@ucdavis.edu> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>