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    • 2. 发明公开
    • DEVICE REPRESENTATION APPARATUS AND METHODS
    • 设备表示装置和方法
    • EP1573526A2
    • 2005-09-14
    • EP03755846.7
    • 2003-09-19
    • INTEL CORPORATION
    • KAUSHIK, ShivCROSSLAND, JamesKUMAR, MohanRANKIN, LindaO'SHEA, David
    • G06F9/445
    • G06F9/4411
    • An apparatus and system may include a peripheral device, such as an interrupt controller or Peripheral Component Interconnect (PCI) bridge device, having a memory-mapped legacy register and a PCI dummy register. The legacy register may be accessed by a Basic Input/Output System (BIOS) as part of a power-on initialization sequence for the peripheral device, and the dummy register may be accessed during a hot-plug operation using code executed by an Operating System (OS). An article, including a machine-accessible medium, may contain data capable of causing a machine to carry out a method of representing a peripheral device which includes identifying the peripheral device as a legacy device in a name space, such as an Advanced Configuration and Power Interface (ACPI) name space, and identifying the peripheral device as a dummy PCI device capable of being accessed during a hot-plug operation.
    • 装置和系统可以包括具有存储器映射的传统寄存器和PCI虚拟寄存器的外围设备,诸如中断控制器或外围组件互连(PCI)桥设备。 作为外围设备的上电初始化序列的一部分,传统寄存器可以由基本输入/输出系统(BIOS)访问,并且虚拟寄存器可以在热插拔操作期间使用由操作系统 (OS)。 包括机器可访问介质的文章可以包含能够使机器执行表示外围设备的方法的数据,其包括将外围设备标识为名称空间中的传统设备,诸如高级配置和功率 接口(ACPI)名称空间,并将外围设备标识为能够在热插拔操作期间访问的虚设PCI设备。