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:
Jul. 08, 2014
Filed:
Nov. 04, 2010
Martin Jess, Erie, CO (US);
Charles E. Nichols, Wichita, KS (US);
Rexford A. Hill, San Diego, CA (US);
John G. Logan, Long Beach, CA (US);
Timothy R. Snider, Derby, KS (US);
Martin Jess, Erie, CO (US);
Charles E. Nichols, Wichita, KS (US);
Rexford A. Hill, San Diego, CA (US);
John G. Logan, Long Beach, CA (US);
Timothy R. Snider, Derby, KS (US);
LSI Corporation, Milpitas, CA (US);
Abstract
Methods and structure for reprogramming firmware in a storage controller using a virtual machine management (VMM) environment. A storage process (current firmware) in the storage controller operates in a current virtual machine (VM) under control of a hypervisor. Reprogrammed (new) firmware is loaded into a new virtual machine under control of the hypervisor. The new firmware initializes and directs the current firmware to quiesce its processing. The new firmware also requests the hypervisor to map data in the memory space of the current virtual machine into the memory space of the new virtual machine and to transfer ownership/control of devices and network addresses from the current virtual machine to the new virtual machine. The new firmware operating on the new virtual machine then takes control of the storage controller and resumes processing of requests.