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. 05, 2022
Filed:
Feb. 28, 2017
Vmware, Inc., Palo Alto, CA (US);
Alok Nemchand Kataria, Pune, IN;
Wei Xu, Palo Alto, CA (US);
Radu Rugina, Palo Alto, CA (US);
Jeffrey W. Sheldon, Palo Alto, CA (US);
James S. Mattson, Seattle, WA (US);
Rakesh Agarwal, Palo Alto, CA (US);
David Dunn, Bellevue, WA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
Mechanisms to protect the integrity of memory of a virtual machine are provided. The mechanisms involve utilizing certain capabilities of the hypervisor underlying the virtual machine to monitor writes to memory pages of the virtual machine. A guest integrity driver communicates with the hypervisor to request such functionality. Additional protections are provided for protecting the guest integrity driver and associated data, as well as for preventing use of these mechanisms by malicious software. These additional protections include an elevated execution mode, termed 'integrity mode,' which can only be entered from a specified entry point, as well as protections on the memory pages that store the guest integrity driver and associated data.