公开(公告)号：CA2756041C

公开(公告)日：2019-02-19

申请号：CA2756041

申请日：2011-10-21

Applicant: IBM

Inventor： CAMPBELL NEIL A ,  NORTH GERAINT ,  WOODWARD GRAHAM

IPC: G06F8/52 ,  G06F12/00

Abstract: 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.

公开(公告)号：CA2756041A1

公开(公告)日：2012-05-10

申请号：CA2756041

申请日：2011-10-21

Applicant: IBM

Inventor： CAMPBELL NEIL A ,  NORTH GERAINT ,  WOODWARD GRAHAM

IPC: G06F8/52 ,  G06F12/00

Abstract: 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.