Pre-Grant Publication Number: 20090119087
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Prior Art Detail
Summary / Description
| Summary / Description | Xen virtualization technology—available for the Linux® kernel—is designed to consolidate multiple operating systems to run on a single server, normalize hardware accessed by the operating systems, isolate misbehaving applications, and migrate running OS instances from one physical server to another. |
Basic Information
| Type of Prior Art | Online Publication |
| URL | http://www.dell.com/downloads/g... |
| Author/Creator | Tim Abels et al. |
| Title | An Overview of Xen Virtualization |
| Publication Date | August 2005 |
| Publisher | Dell Power Solutions |
| Directions to Document Location | |
| Additional Information | |
Notes / To Do
| Notes | See figure 1 on p. 110 |
Excerpt
Excerpt Full virtualization is designed to provide total abstraction of the underlying physical system and creates a complete virtual system in which the guest operating systems can execute. No modification is required in the guest OS or application; the guest OS or application is not aware of the virtualized environment so they have the capability to execute on the VM just as they would on a physical system. As a result, full virtualization can streamline the migration of applications and workloads between different physical systems. In contrast, para-virtualization presents each VM with an abstraction of hte hardware that is similar but not identical to the underlying physical hardware. Para-virtualization techniques require modifications to the guest operating systems that are running on the VMs. As a result, the guest operating systems are aware that they are executing on a VM - allowing for near native performance. |
Relevance
Claims
1
Relevance
Administrators can create virtual machines with special privileges that can directly access the hardware through secure interfaces provided by Xen (this would be analogous to the "pass-through mode" of the claimed invention) allowing for near native performance to be achieved. Xen architecture also abstracts the underlying physical hardware and provides hardware access for the different virtual machines - this is analogous to the "emulation mode" of the claimed invention.
Administrators can create virtual machines with special privileges that can directly access the hardware through secure interfaces provided by Xen (this would be analogous to the "pass-through mode" of the claimed invention) allowing for near native performance to be achieved. Xen architecture also abstracts the underlying physical hardware and provides hardware access for the different virtual machines - this is analogous to the "emulation mode" of the claimed invention.
Claim Chart
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