Chipset support for binding and migrating hardware devices among heterogeneous processing units

摘要

A method for providing access to hardware devices by a processor without causing conflicts with other processors included in a computer system. The method includes receiving a first address map from a first processor and a second address map from a second processor, where each address map includes memory-mapped input/output (I/O) apertures for a set of hardware devices that the processor is configured to access. The method further includes generating a global address map by combining the first address map and the second address map, receiving a first access request from the first processor and routing the first access request to a hardware device based on an address mapping included in the global address map. Advantageously, heterogeneous processors included in multi-processor system can access any hardware device included in the computer system, without modifying the processors, one or more operating systems executed by each processor, or the hardware devices.

主权项

1. A method for providing access to hardware devices included in a computer system by a processor without causing conflicts with other processors included in the computer system, the method comprising:
receiving a first address map from a first processor that includes memory-mapped input/output (I/O) apertures for a first set of hardware devices including a first aperture associated with a first hardware device that the first processor is configured to access; receiving a second address map from a second processor that includes memory-mapped I/O apertures for a second set of the hardware devices including a second aperture associated with the first hardware device that the second processor is configured to access; generating a global address map by combining the first address map and the second address map, wherein the global address map includes the first aperture and the second aperture; receiving a first access request from the first processor; and routing the first access request to the first hardware device associated with the first access request based on an address mapping included in the global address map.