ALEXANDRIA, Va., April 9 -- United States Patent no. 12,271,616, issued on April 8, was assigned to Intel Corp. (Santa Clara, Calif.).
"Independently controlled DMA and CPU access to a shared memory region" was invented by Utkarsh Y. Kakaiya (Folsom, Calif.), David Koufaty (Portland, Ore.), Rajesh Sankaran (Portland, Ore.) and Vedvyas Shanbhogue (Austin, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment of an integrated circuit comprises circuitry to share page tables associated with a page between a processor memory management unit (MMU) and an input/output memory management unit (IOMMU), store a page table entry in the memory associated with the page, and separately control access to the p...