Processing apparatus and method of modifying system configuration
US7877521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2007 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Nov 13, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A virtual PCI Express device 1600 indicates the presence of a pseudo I/O device in a PCI Express initial configuration cycle to reserve a resource space for a device anticipated to be installed in the future, and when an I/O device 1400 is inserted into an unoccupied slot 1605, a virtual PCI Express device control logic 1602 notifies a downstream PCI-PCI bridge 1504 via a hot-plugging control line 1601, and the downstream PCI-PCI bridge 1504 generates an interrupt to a CPU 1100 to notify it of insertion of the I/O device 1400 in conformance with the procedure for hot plugging defined by the PCI-SIG Standards, and configuration software 1000 invoked configures the inserted I/O device 1400.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.