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    • 87. 发明授权
    • Information processing apparatus and method of controlling same
    • 信息处理装置及其控制方法
    • US08281073B2
    • 2012-10-02
    • US12698750
    • 2010-02-02
    • Kenji Hara
    • Kenji Hara
    • G06F12/08
    • G06F12/0866G06F12/0284G06F12/109G06F2212/284G06F2212/311
    • Disclosed is an information processing apparatus equipped with first and second CPUs, as well as a method of controlling this apparatus. When the first CPU launches an operating system for managing a virtual memory area that includes a first cache area for a device, the first CPU generates specification data, which indicates the corresponding relationship between the first cache and a second cache for the device and provided in a main memory, and transfers the specification data to the second CPU. In accordance with the specification data, the second CPU transfers data, which has been stored in the device, to a physical memory corresponding to a cache to which the first CPU refers. As a result, the first CPU accesses the first cache area is thereby capable of accessing the device at high speed.
    • 公开了一种配备有第一和第二CPU的信息处理装置,以及控制该装置的方法。 当第一CPU启动用于管理包括用于设备的第一高速缓存区域的虚拟存储器区域的操作系统时,第一CPU产生指定数据,其指示用于该设备的第一高速缓存和第二高速缓存之间的对应关系, 主存储器,并将规范数据传送到第二CPU。 根据规格数据,第二CPU将已经存储在设备中的数据传送到与第一CPU参考的高速缓存相对应的物理存储器。 结果,第一CPU访问第一高速缓存区域由此能够高速地访问设备。