US Patent Issued to Advanced Micro Devices, ATI TECHNOLOGIES on Aug. 26 for "Secure direct memory access" (Canadian, American Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,850, issued on Aug. 26, was assigned to Advanced Micro Devices Inc. (Santa Clara, Calif.) and ATI TECHNOLOGIES ULC (Markham, Canada).

"Secure direct memory access" was invented by Philip Ng (Toronto), Nippon Raval (Markham, Canada), Jeremy W. Powell (Austin, Texas), Donald Matthews Jr. (Ft. Collins, Colo.) and David Kaplan (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A processor supports managing DMA accesses, in secure fashion, at an IOMMU. The IOMMU is configured to ensure that, for a given DMA request issued by an I/O device and associated with a particular executing VM, the device is bound to the VM according to a specified secu...