Communication among partitioned devices

US8898246B2 · kind B2 · utility

Assignee

• HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

• Gary Gostin · Plano, US
• Larry N. McMahan · Fremont, US
• Michael Schroeder · Plano, US
• Craig Warner · Coppell, US
• Richard W. Adkisson · Dallas, US
• Huai-ter Chong · Plano, US
• David Binford · Plano, US
• Mark Shaw · Plano, US
• Joe P. Cowan · Fort Collins, US
• Thierry Fevrier · Citrus, US
• Arad Rostampour · Fort Collins, US

Key dates

• Filing date: Jul 29, 2004
• Grant date: Nov 25, 2014
• Expiry date: Oct 11, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F15/167
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A computing device having partitions, and a method of communicating between partitions, are disclosed wherein at least one partition comprises: at least one register substantially always accessible to other partitions and capable of defining an address area; at least one address area that may be accessible to other partitions and is capable of being defined by the at least one register; and address areas other than the at least one accessible address area that are not accessible to other partitions. A method of processing interrupts comprising receiving an interrupt, assessing the origin of the interrupt, accepting, rejecting, or further assessing the interrupt, depending on its origin, when further assessing the interrupt, accepting or rejecting the interrupt depending on its contents, and forwarding accepted interrupts but not rejected interrupts to a target processor, and a device carrying out that method are also disclosed.