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    • 1. 发明授权
    • Information processing apparatus and access control method
    • 信息处理装置和访问控制方法
    • US07971026B2
    • 2011-06-28
    • US12075220
    • 2008-03-10
    • Tsuyoshi NishidaGen WatanabeKazuyoshi KuwaharaHajime Sonobe
    • Tsuyoshi NishidaGen WatanabeKazuyoshi KuwaharaHajime Sonobe
    • G06F12/00
    • G06F12/08G06F9/30098G06F9/3824G06F9/3891
    • According to one embodiment, an information processing apparatus includes a processor including a register file which holds physical registers to which general purpose registers provided by an instruction set architecture are assigned, a virtual register assigning unit which assigns a virtual address in the main memory space to a physical register in the register file based on a request from a program, and records a correspondence between each of the virtual addresses and a corresponding one of the physical registers in a virtual register conversion table, and an access converting unit which determines whether or not a virtual address to be accessed is recorded in the virtual register conversion table managed by the virtual register assigning unit, and executes, when the virtual address is recorded therein, processing of accessing the physical register of which a correspondence to the virtual address is recorded in the virtual register conversion table.
    • 根据一个实施例,一种信息处理设备包括:处理器,包括:寄存器文件,其保存由指定集架构提供的通用寄存器被分配到的物理寄存器;虚拟寄存器分配单元,其将主存储器空间中的虚拟地址分配给 基于来自程序的请求的寄存器文件中的物理寄存器,并且记录虚拟寄存器转换表中的每个虚拟地址和对应的一个物理寄存器之间的对应关系,以及访问转换单元,其确定是否 要访问的虚拟地址被记录在由虚拟寄存器分配单元管理的虚拟寄存器转换表中,并且当虚拟地址被记录在其中时,执行访问与虚拟地址的对应关系的物理寄存器的处理被记录在 虚拟寄存器转换表。