PROCESSING SYSTEM WITH REGISTER ARBITRATION AND METHODS FOR USE THEREWITH

摘要

A processing system includes a memory module that includes a register space for storing a plurality of register data in a plurality of registers and secure access data corresponding to the register space. A register arbitration module operates to receive a request to access one of the registers from a client module; retrieve secure access data corresponding to the client to determine if the client is trusted; and to grant the request to access the register if the client is trusted. If the client is not trusted, the register arbitration module retrieves secure access data to determine if the register is non-secured for the client. The register arbitration module grants the request to access the register when the register is non-secured for the client.

主权项

1. A processing system comprising:
a plurality of clients: a memory module that includes a register space for storing a plurality of register data in a plurality of secured registers and secure access data corresponding to the register space for each of the plurality of clients, wherein the secure access data indicates a security status for each of the plurality of secured registers on a client specific basis; a register arbitration module, coupled to the memory module and the plurality of clients, wherein the register arbitration module:
receives a request to access one of the plurality of secured registers from at least one of the plurality of clients;retrieves the security status corresponding to the at least one of the plurality of secured registers to determine when the at least one of the plurality of secured registers is non-secured for the at least one of the plurality of clients corresponding to the request; andgrants the request to access the one of the plurality of secured registers when the at least one of the plurality of secured registers is non-secured for the at least one of the plurality of clients corresponding to the request.