I/O system and I/O control method
US8683110B2 · kind B2 · utility
8Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2008 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Aug 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Virtual Functions (VFs) 602-1 to 602-N of an I/O device are separately allocated to a plurality of computers 1-1 to 1-N. In an address swap table 506, a root domain that is an address space of the computer 1 and mapping information of an I/O domain that is an address space unique to the I/O device 6 are registered. Mapping is set with the VFs 602-1 to 602-N as units. When accessing the VFs 602-1 to 602-N of the I/O device 6 to which each of the computers 1-1 to 1-N is allocated, an I/O packet transfer unit 701 checks the address swap table 506 to swap source/destination addresses recorded in packet headers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.