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:
Dec. 17, 2013
Filed:
Jul. 19, 2006
Chunmei Liu, Beijing, CN;
Jiancheng Liu, Beijing, CN;
Chunyu Song, Beijing, CN;
Lenovo (Beijing) Limited, Beijing, CN;
Abstract
A method and apparatus for dynamic assigning I/O device in virtual machine system, the virtual machine system comprises a service OS, a hypervisor and at least one guest OS. The service OS contains a device model module, the device model module providing an access platform for I/O device to the guest OS. The guest OS access the device model module through the hypervisor. One device state module for dynamic reflecting the device's state is increased in the device model module, the device state module dynamic altering the register condition of the device in hardware space. It is possible to dynamic control the access to I/O device by the guest OS by using the control panel in the service OS to dynamic alter the device's state in the device state module. One agent module is increased in guest OS, for altering the device's state in guest OS anytime based on the change of the device state.