Invention Grant
- Patent Title: Operating system virtual memory management for hardware transactional memory
- Patent Title (中): 硬件事务内存的操作系统虚拟内存管理
-
Application No.: US13554558Application Date: 2012-07-20
-
Publication No.: US08688951B2Publication Date: 2014-04-01
- Inventor: Koichi Yamada , Gad Sheaffer , Ali-Reza Adl-Tabatabai , Landy Wang , Martin Taillefer , Arun Kishan , David Callahan , Jan Gray , Vadim Bassin
- Applicant: Koichi Yamada , Gad Sheaffer , Ali-Reza Adl-Tabatabai , Landy Wang , Martin Taillefer , Arun Kishan , David Callahan , Jan Gray , Vadim Bassin
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Agent Raghu Chinagudabha; Henry Gabryjelski; Micky Minhas
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F13/00 ; G06F13/28 ; G06F9/26 ; G06F9/34 ; G06F9/455 ; G06F9/46

Abstract:
Operating system virtual memory management for hardware transactional memory. A system includes an operating system deciding to unmap a first virtual page. As a result, the operating system removes the mapping of the first virtual page to the first physical page from the virtual memory page table. As a result, the operating system performs an action to discard transactional memory hardware state for at least the first physical page. Embodiments may further suspend hardware transactions in kernel mode. Embodiments may further perform soft page fault handling without aborting a hardware transaction, resuming the hardware transaction upon return to user mode, and even successfully committing the hardware transaction.
Public/Granted literature
- US20120284485A1 OPERATING SYSTEM VIRTUAL MEMORY MANAGEMENT FOR HARDWARE TRANSACTIONAL MEMORY Public/Granted day:2012-11-08
Information query