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:
Jan. 06, 2015
Filed:
Dec. 20, 2011
Steve Chalmer, Auburndale, MA (US);
Steven T. Mcclure, Northboro, MA (US);
Serge Pirotte, Coventry, RI (US);
Velmurugan Rathnam, Shrewsbury, MA (US);
Animesh Singh, Bangalore, IN;
Hongliang Tang, Shrewsbury, MA (US);
Steve Chalmer, Auburndale, MA (US);
Steven T. McClure, Northboro, MA (US);
Serge Pirotte, Coventry, RI (US);
Velmurugan Rathnam, Shrewsbury, MA (US);
Animesh Singh, Bangalore, IN;
Hongliang Tang, Shrewsbury, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
When a guest OS loads within the context of a container provided by the host OS, the guest OS uses PCI or other protocol to specify a virtual hardware device. The guest OS enumerates the virtual hardware device to establish the size for the BARs and establish its view of physical addresses for the memory locations. A server running in the context of the container receives read/write requests from the guest OS, maps the read/write requests to host OS physical address space, and posts responses to the virtual hardware device. Since the guest OS executes memory related operations using its own memory space, exits to the container code are not required to implement storage related actions by the Guest OS. This allows performance of an application executing in the context of the guest OS to approximate performance of an application executing in the context of the host OS.