US Patent Issued to Ventana Micro Systems on Feb. 18 for "Microprocessor that prevents store-to-load forwarding between different translation contexts" (California Inventor)

ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,229,252, issued on Feb. 18, was assigned to Ventana Micro Systems Inc. (Cupertino, Calif.).

"Microprocessor that prevents store-to-load forwarding between different translation contexts" was invented by John G. Favor (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A processor and a method are disclosed that mitigate side channel attacks (SCAs) that exploit store-to-load forwarding operations. In one embodiment, the processor detects a translation context change from a first translation context (TC) to a second TC and responsively disallows store-to-load forwarding until all store instructions older than the TC change are committed. The TC ...