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. 21, 2020
Filed:
Aug. 20, 2018
Red Hat Israel, Ltd, Ra'anana, IL;
Paolo Bonzini, Milan, IT;
Michael Tsirkin, Westford, MA (US);
Red Hat Israel, Ltd., Ra'anana, IL;
Abstract
Methods, systems, and computer program products are included for loading a code module. A method includes verifying, by a guest, a digital signature of a code module stored in an initial guest memory buffer. The guest copies the verified code module stored at the initial guest memory buffer into a target guest memory buffer and applies, using one or more symbol entries, one or more relocations to the verified code module stored at the target guest memory buffer. The guest sends a request to a hypervisor to set the target guest memory buffer to a write-protect mode. In response to a determination that first content stored in the initial guest memory buffer corresponds to second content stored in the target guest memory buffer, the guest sends a request to the hypervisor to set the target guest memory buffer to an executable mode.