TrustZone Address Space Controller with CHI interface


I am reading the AMBA 5 CHI Architecture Specification and in the overview it says:

"ARM TrustZone support on a transaction-by-transaction basis."

but I cannot find more information about TrustZone

I would expect some TrustZone IP, similar to:

ARM CoreLink TZC-400 TrustZone Address Space Controller

TZC-400 is for ACE-Lite, is something similar available for CHI? Are there updates in the TrustZone due to TEE?

thank you