公开(公告)号：US20230032586A1

公开(公告)日：2023-02-02

申请号：US17711928

申请日：2022-04-01

Applicant: Intel Corporation

Inventor： Narayan Ranganathan ,  Philip R. Lantz ,  Rajesh M. Sankaran ,  Sanjay Kumar ,  Saurabh Gayen ,  Nikhil Rao ,  Utkarsh Y. Kakaiya ,  Dhananjay A. Joshi ,  David Jiang ,  Ashok Raj

IPC: G06F3/06 ,  G06F9/455

Abstract: Methods and apparatus relating to scalable access control checking for cross-address-space data movement are described. In an embodiment, a memory stores an InterDomain 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.