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:
Apr. 12, 2005
Filed:
Apr. 19, 2004
Carl A. Waldspurger, Atherton, CA (US);
Michael Nelson, Alamo, CA (US);
Kinshuk Govil, Palo Alto, CA (US);
Carl A. Waldspurger, Atherton, CA (US);
Michael Nelson, Alamo, CA (US);
Kinshuk Govil, Palo Alto, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
A computer has a hardware memory arranged into portions that are separately addressable using first identifiers, which are represented using a first number of address bits. A subsystem that is able to address a second space of the hardware memory using second identifiers initiates I/O requests directed to a device that is able to address a different, first memory space using first identifiers, which are represented using a second number of address bits. The second identifiers are initially mapped into the second memory space, but for any I/O request that meets a remapping criterion, the corresponding second identifier is remapped to one of the first identifiers that identifies a portion of the memory in the first memory space. The second space is different from the first space and the second number of address bits is greater less than the first number of address bits.