公开(公告)号：US20140115193A1

公开(公告)日：2014-04-24

申请号：US14141792

申请日：2013-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunhai LIU ,  Guanyu ZHU

IPC: G06F13/10

CPC classification number: G06F13/10 ,  G06F9/4405 ,  G06F9/4411

Abstract: Embodiments of the present disclosure relate to a method and a device for enumerating input/output devices (IO devices). The method for enumerating input/output devices includes: acquiring an identifier of each processor and an identifier of each input/output (IO) centralized controller in a system; separately instructing processors to simultaneously enumerate a specific IO centralized controller and an input/output IO device connected to the specific IO centralized controller, according to the identifier of each processor and the identifier of each IO centralized controller; and acquiring related information of IO devices enumerated by the instructed processors. According to the embodiments of the present disclosure, the work of enumerating the system IO devices may be allocated to multiple processors to be carried out simultaneously, so as to greatly reduce time consumed in the enumeration process, and to accelerate a system initialization process.

Abstract translation: 本公开的实施例涉及一种用于枚举输入/输出设备（IO设备）的方法和设备。 用于枚举输入/输出设备的方法包括：获取每个处理器的标识符和系统中每个输入/输出（IO）集中控制器的标识符; 分别指示处理器根据每个处理器的标识符和每个IO集中控制器的标识符同时列举特定IO集中控制器和连接到特定IO集中控制器的输入/输出IO设备; 并且获取被指示的处理器枚举的IO设备的相关信息。 根据本公开的实施例，枚举系统IO设备的工作可以被分配给要同时执行的多个处理器，以便大大减少在枚举过程中消耗的时间并且加速系统初始化过程。