ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,481,602, issued on Nov. 25, was assigned to NVIDIA Corp. (Santa Clara, Calif.).

"Preventing unauthorized memory access using a physical address access permissions table" was invented by Jonathon Evans (Santa Clara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A host may use address translation to convert virtual addresses to physical addresses for endpoints, which may then submit memory access requests for physical addresses. The host may record permissions granting entities access to physical addresses in physical address access permissions tables (PAAPTs) responsive to the address translation. The security of address translation services may ...