動的バイナリ・トランスレータに関するメモリ管理のための装置、方法、およびコンピュータ・プログラム

摘要

A dynamic binary translator apparatus, method and program for translating a first block of binary computer code intended for execution in a subject execution environment having a first memory of one page size into a second block for execution in a second execution environment having a second memory of another page size, comprising a redirection page mapper responsive to a page characteristic of the first memory for mapping an address of the first memory to an address of the second memory; a memory fault behaviour detector operable to detect memory faulting during execution of the second block and to accumulate a fault count to a trigger threshold; and a regeneration component responsive to the fault count reaching the trigger threshold to discard the second block and cause the first block to be retranslated with its memory references remapped by a page table walk.