Patent ID: 8239938
Filing Date: 2012-08-07
Classification: G06F

Abstract:
1. A method for providing an operating system access to hardware devices included in a computer system, comprising: enumerating one or more hardware devices and one or more virtualized devices included in the computer system, including: generating a first permission list that specifies which operating systems in a plurality of operating systems are permitted to access the SW virtualized device; generating a second permission list that specifies which operating systems in the plurality of operating systems are permitted to access the HW virtualized device; generating a first set of virtual address maps that each map a first address space associated with the SW virtualized device into an address space associated with each operating system included in the first permission list; generating a second set of virtual address maps that each map a second address space associated with the HW virtualized device into an address space associated with each operating system included in the second permission list; and arbitrating access requests from each of the plurality of operating systems, including: