Mechanism to transition control between components in a...

Details Mechanism to transition control between components in a... Mechanism to transition control between components in a...

2005-12-30

2010-11-23

Tang, Kenneth (Department: 2195)

Electrical computers and digital processing systems: virtual mac

Virtual machine task or process management

C711S006000, C711S202000, C713S166000

Reexamination Certificate

active

07840964

ABSTRACT:
In some embodiments, the invention efficiently manages, sets up, controls and performs communication between isolated components using portals. In a platform having virtualization architecture, a component in a first virtual machine requests a service to be performed by a component in a second virtual machine. A privileged system layer validates the ability to create a communication portal between the two components. The validation is a two-level validation to ensure that a portal is permitted between the two components and that the requested activity is also permitted. Other embodiments are described and claimed.

REFERENCES:
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patent: 2005/0172305 (2005-08-01), Baumberger
patent: 2006/0130060 (2006-06-01), Anderson et al.
Rich Uhlig et al., “Intel Virtualization Technology”, Computer, IEEE Computer Society, vol. 38, No. 5, pp. 48-56, May 2005.
Intel Corporation, “Intel® Virtualization Technology Specification for the Intel® Itanium® Architecture (VT-i),” Revision 2.0, Document No. 305942-002, 100 pages, Apr. 2005.
Intel Corporation, “Intel® Virtualization Technology Specification for the IA-32 Intel® Architecture,” Document No. C97063-002, 144 pages, Apr. 2005.
Andrew V. Anderson et al., U.S. Appl. No. 11/008,911, entitled “System and Method to Deprivilege Components of a Virtual Machine Monitor,” filed Dec. 10, 2005.

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