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.

Date of Patent:
Aug. 01, 2017

Filed:

Jul. 01, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Utz Bacher, Dettenhausen, DE;

Reinhard T. Buendgen, Tuebingen, DE;

Heiko Carstens, Boeblingen, DE;

Dominik Dingel, Boeblingen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/06 (2006.01); G06F 9/455 (2006.01); G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 12/145 (2013.01); G06F 2009/4557 (2013.01); G06F 2009/45562 (2013.01); G06F 2009/45583 (2013.01); G06F 2009/45587 (2013.01); G06F 2212/1052 (2013.01); G06F 2212/151 (2013.01);
Abstract

A computer-implemented method includes receiving a definition of a source guest memory area for utilization by a virtual machine on a source system, wherein the source system includes a source trusted firmware and a source hypervisor. The method restricts write access to the source guest memory area of the virtual machine. The method receives repeatedly a source guest memory page location, content for each of a plurality of source guest memory pages, and an integrity value for each of a plurality of source guest memory page locations. The method receives a global integrity value for integrity values associated with the plurality of source guest memory page locations, wherein a latest integrity values for each of the plurality of source guest memory page locations is utilized. Subsequent to verifying the global integrity value, the method initializes the virtual machine on the source hypervisor.


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