公开(公告)号：US20230385207A1

公开(公告)日：2023-11-30

申请号：US18249194

申请日：2021-08-26

Applicant: Arm Limited

Inventor： Gustavo Federico PETRI ,  Guilhem Floréal BRYANT ,  Nicholas Costas SPINALE ,  Dominic Phillip MULLIGAN

IPC: G06F13/10 ,  G06F21/44

CPC classification number: G06F13/102 ,  G06F21/44

Abstract: Examples of the present disclosure relate to an apparatus comprising interface circuitry to interface with one or more peripheral devices, processing circuitry to execute software to communicate with a given peripheral device of the one or more peripheral devices, trusted execution environment circuitry communicatively coupled to the interface circuitry and the processing circuitry. The trusted execution circuitry is configured to: receive a transmission from one of the processing circuitry and the given peripheral device to the other one of the processing circuitry and the given peripheral device; and apply a control policy in respect of the received transmission and, based on the control policy, determine whether to forward the received transmission to said other one of the processing circuitry and the given peripheral device.