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:
May. 19, 2015
Filed:
Apr. 28, 2008
Hubert E. Brinkmann, Spring, TX (US);
Paul V. Brownell, Houston, TX (US);
David L. Matthews, Cypress, TX (US);
Dwight D. Riley, Houston, TX (US);
Hubert E. Brinkmann, Spring, TX (US);
Paul V. Brownell, Houston, TX (US);
David L. Matthews, Cypress, TX (US);
Dwight D. Riley, Houston, TX (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Embodiments of the present invention are directed to methods for virtualizing interrupt modes on behalf of interrupt-generating devices, including I/O-device controllers, so that newer interrupt-generating devices that lack older interrupt modes can be used in systems that continue to rely on older interrupt modes. In one embodiment of the present invention, a PCIe switch or PCIe-based host bridge is modified, or a new component introduced, to provide an interrupt-mode virtualizing function, or virtual interrupt-mode interface, that provides a virtual interrupt mode on behalf of interrupt-generating devices, such as I/O-device controllers, to operating systems, BIOS layers, and other components that communicate with the I/O-device controllers.