| 摘要 |
Disclosed are a method of and a system for enabling a program running on a logical partition, of a logically partitioned data processing system, to access directly resources of the data processing system. The method comprising the steps of, said program transforming a first address for a resource of a specific type on the data processing system, to a second address, within an address space allocated to said logical partition; and said program using said second address space to access a resource of said specific type allocated to said logical partition. In this way, the present invention may be used to enable a program running within a partition's address space to access IO devices directly, thus avoiding the overhead of making a hypervisor call.
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