International Business Machines Corporation
OPTIMIZE BOUND INFORMATION ACCESSES IN BUFFER PROTECTION

Abstract:

A method, system and apparatus for providing bound information accesses in buffer protection, including providing one-to-one mapping between a general-purpose register and bound information in a BI (bound information) register, saving loaded bound information in the BI register for future use, providing integrity of the bound information in the BI register that is maintained along program execution, and providing a pro-active load of the bound information with one-bit extra control on load instruction of the BI register.