发明授权
- 专利标题: Processing apparatus and method of modifying system configuration
- 专利标题(中): 修改系统配置的处理装置和方法
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申请号: US11836357申请日: 2007-08-09
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公开(公告)号: US07877521B2公开(公告)日: 2011-01-25
- 发明人: Jun Suzuki , Youichi Hidaka , Junichi Higuchi , Atsushi Iwata
- 申请人: Jun Suzuki , Youichi Hidaka , Junichi Higuchi , Atsushi Iwata
- 申请人地址: JP Tokyo
- 专利权人: NEC Corporation
- 当前专利权人: NEC Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2006-219469 20060811
- 主分类号: G06F3/00
- IPC分类号: G06F3/00
摘要:
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.
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