The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2014
Filed:
Jul. 20, 2012
Koichi Yamada, Los Gatos, CA (US);
Gad Sheaffer, Haifa, IL;
Ali-reza Adl-tabatabai, San Jose, CA (US);
Landy Wang, Kirkland, WA (US);
Martin Taillefer, Redmond, WA (US);
Arun Kishan, Bellevue, WA (US);
David Callahan, Seattle, WA (US);
Jan Gray, Bellevue, WA (US);
Vadim Bassin, Raanana, IL;
Koichi Yamada, Los Gatos, CA (US);
Gad Sheaffer, Haifa, IL;
Ali-Reza Adl-Tabatabai, San Jose, CA (US);
Landy Wang, Kirkland, WA (US);
Martin Taillefer, Redmond, WA (US);
Arun Kishan, Bellevue, WA (US);
David Callahan, Seattle, WA (US);
Jan Gray, Bellevue, WA (US);
Vadim Bassin, Raanana, IL;
Microsoft Corporation, Redmond, WA (US);
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.