US Patent Issued to Advanced Micro Devices on Oct. 14 for "Protection against branch target buffer poisoning by a management layer" (California, Texas Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,443,702, issued on Oct. 14, was assigned to Advanced Micro Devices Inc. (Santa Clara, Calif.).

"Protection against branch target buffer poisoning by a management layer" was invented by David Kaplan (Austin, Texas) and Marius Evers (Santa Clara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A processing system includes a branch prediction structure storing information used to predict the outcome of a branch instruction. The processing system also includes a register storing a first identifier of a first process in response to the processing system changing from a first mode that allows the first process to modify the branch prediction structure t...