Providing virtual device access via firmware

Details Providing virtual device access via firmware Providing virtual device access via firmware

2008-06-24

2008-06-24

Phan, Thai (Department: 2128)

Data processing: structural design, modeling, simulation, and em

Emulation

Of instruction

C703S025000, C703S027000, C718S001000, C718S104000

Reexamination Certificate

active

07392172

ABSTRACT:
Hardware access is provided for an operating system by allocating a portion of firmware address space of a data processing arrangement for use as a virtualized data interface that emulates a first hardware device. The virtualized data interface is presented to the operating system. The operating system accesses the virtualized data interface using a standardized kernel component of the operating system adapted to interface with the first hardware device. Data is exchanged between the virtualized interface and a second hardware device based on accesses of the virtualized data interface by the operating system via the standardized kernel component.

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