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:
Sep. 14, 2012
Hubertus Franke, Cordlandt Manor, NY (US);
Benjamin Herrenschmidt, Narrabundah, AU;
Jon K. Kriegel, Rochester, MN (US);
Andrew M. Theurer, Austin, TX (US);
James Xenidis, Carmel, NY (US);
Hubertus Franke, Cordlandt Manor, NY (US);
Benjamin Herrenschmidt, Narrabundah, AU;
Jon K. Kriegel, Rochester, MN (US);
Andrew M. Theurer, Austin, TX (US);
James Xenidis, Carmel, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and a system for allowing a guest operating system (guest OS) to modify an entry in a TLB directly without an involvement of a hypervisor are disclosed. Upon receiving a guest TLB miss exception, a guest OS issues a TLBWE (TLB Write Entry) instruction to logic. The logic runs the TLBWE instruction at a supervisor mode without invoking a hypervisor. The TLB may incorporate entries in a guest page table and entries in a host page table.