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    • 22. 发明申请
    • Information processing apparatus and access control method
    • 信息处理装置和访问控制方法
    • US20080270736A1
    • 2008-10-30
    • US12075220
    • 2008-03-10
    • Tsuyoshi NishidaGen WatanabeKazuyoshi KuwaharaHajime Sonobe
    • Tsuyoshi NishidaGen WatanabeKazuyoshi KuwaharaHajime Sonobe
    • G06F12/08
    • 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。
    • 23. 发明申请
    • INFORMATION PROCESSING APPARTAUS
    • 信息处理APPARTAUS
    • US20080163360A1
    • 2008-07-03
    • US11961989
    • 2007-12-20
    • Tsuyoshi Nishida
    • Tsuyoshi Nishida
    • G06F21/22
    • G06F21/70G06F21/572G06F21/575G06F21/60G06F21/74G06F21/78
    • An information processing apparatus includes firmware incorporated in the apparatus; utility software that can be installed and uninstalled; a first restricting unit; and a second restricting unit. The information processing apparatus executes the firmware and the utility software to access a device. The firmware uses the first restricting unit to restrict use of the device on the basis of restriction information, supplies the restriction information to the utility software, and removes the restriction by the first restricting unit if an instruction to remove the restriction is received from the utility software. The utility software determines whether the use of the device has already been restricted by the second restricting unit when the utility software receives the restriction information from the firmware, and instructs the firmware to remove the restriction by the first restricting unit if the use of the device has already been restricted by the second restricting unit.
    • 一种信息处理装置,包括装在该装置中的固件; 可安装和卸载的实用软件; 第一限制单位; 和第二限制单元。 信息处理装置执行固件和实用软件以访问设备。 固件使用第一限制单元基于限制信息限制设备的使用,将限制信息提供给实用软件,并且如果从实用程序接收到去除限制的指令,则去除第一限制单元的限制 软件。 当实用软件从固件接收到限制信息时,实用软件确定第二限制单元是否已经限制了设备的使用,并且如果使用该设备则指示固件去除第一限制单元的限制 已被第二限制单元限制。