Intel Corporation

David Jiang

Rajesh M Sankaran

Sanjay Kumar

Utkarsh Y Kakaiya

Philip R Lantz

Ashok Raj

Narayan Ranganathan

Saurabh Gayen

Dhananjay A Joshi

Methods and apparatus relating to scalable access control checking for cross-address-space data movement are described. In an embodiment, a memory stores an Inter-Domain Permissions Table (IDPT) having a plurality of entries. At least one entry of the IDPT provides a relationship between a target address space identifier and a plurality of requester address space identifiers. A hardware accelerator device allows access to a target address space, corresponding to the target address space identifier, by one or more of requesters, corresponding to the plurality of requester address space identifiers, respectively, based at least in part on the relationship provided by the at least one entry of the IDPT. Other embodiments are also disclosed and claimed.

Scalable access control checking for cross-address-space data movement

Growing community of inventors

Chandler, AZ, United States of America

David Jiang