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:
May. 17, 2011
Filed:
Jul. 24, 2008
Boon Seong Ang, Sunnyvale, CA (US);
Mallik Mahalingam, Sunnyvale, CA (US);
Ronghua Zhang, Mountain View, CA (US);
Andrew Lambeth, San Mateo, CA (US);
Boon Seong Ang, Sunnyvale, CA (US);
Mallik Mahalingam, Sunnyvale, CA (US);
Ronghua Zhang, Mountain View, CA (US);
Andrew Lambeth, San Mateo, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
A virtual device emulated in software and included in a virtual machine is provided in a virtualized computer system. The virtual device includes an emulation mode and a pass through mode. The emulation mode is used for a first plurality of device operations. The pass through mode is used for a second plurality of device operations. The virtual device is configured to communicate with a physical device and each of the second plurality of device operations are configured to be handled by the physical device. The virtual device also includes a switching logic to switch between the emulation mode and the pass through mode based on a device operation to be performed by the virtual machine of the virtual device.