ALEXANDRIA, Va., June 2 -- United States Patent no. 12,645,604, issued on June 2, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).
"Address translation prefetching for input/output devices" was invented by Ramakrishna Huggahalli (Scottsdale, Ariz.) and Shachar Raindel (Redmond, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In one example of the present technology, an input/output memory management unit (IOMMU) of a computing device is configured to: receive a prefetch message including a virtual address from a central processing unit (CPU) core of a processor of the computing device; perform a page walk on the virtual address through a page table stored in a main memory of the comp...