Configuration control within data processing systems
    1.
    发明授权
    Configuration control within data processing systems 有权
    数据处理系统中的配置控制

    公开(公告)号:US06907515B2

    公开(公告)日:2005-06-14

    申请号:US10152337

    申请日:2002-05-22

    IPC分类号: G06F9/455 G06F9/00

    CPC分类号: G06F9/45504

    摘要: A data processing system is provided with a first mechanism for executing instructions of a first instruction set and a second mechanism for executing instructions of a second instruction set. The second mechanism requires configuration data 310, 312, 314, 316 which may or may not be valid. Programs that use the second execution mechanism are responsible for the writing of its own configuration data with this being indicated as being necessary by a configuration valid indicator CV set to indicate that the configuration is invalid by the operating system 300 upon detecting an appropriate process switch.

    摘要翻译: 数据处理系统具有用于执行第一指令集的指令的第一机制和用于执行第二指令集的指令的第二机制。 第二机制需要可能是或可能不是有效的配置数据310,312,314,316。 使用第二执行机构的程序负责写入其自己的配置数据,由此被配置有效指示符CV指示为需要,该配置有效指示符CV被设置为指示在检测到适当的过程切换时操作系统300的配置无效。

    Exception types within a secure processing system
    2.
    发明授权
    Exception types within a secure processing system 有权
    安全处理系统中的异常类型

    公开(公告)号:US07949866B2

    公开(公告)日:2011-05-24

    申请号:US12382647

    申请日:2009-03-20

    IPC分类号: G06F1/24

    摘要: An apparatus for processing data includes a processor operable in a plurality modes including at least one secure mode being a mode in a secure domain and at least one non-secure mode being a mode in a non-secure domain. When the processor is executing a program in a secure mode the program has access to secure data which is not accessible when the processor is operating in a non-secure mode. The processor is responsive to one or more exception conditions for triggering exception processing using an exception handler. The processor is operable to select the exception handler from among a plurality of possible exception handlers in dependence upon whether the processor is operating in the secure domain or the non-secure domain.

    摘要翻译: 一种用于处理数据的装置包括可以以多种模式操作的处理器,包括至少一种安全模式,即安全域中的模式,以及至少一种非安全模式是非安全域中的模式。 当处理器以安全模式执行程序时,程序可以访问当处理器以非安全模式运行时无法访问的安全数据。 处理器响应于一个或多个异常条件,以使用异常处理程序触发异常处理。 处理器可操作以依赖于处理器是否在安全域或非安全域中操作从多个可能的异常处理程序中选择异常处理程序。

    Exception handling control in a secure processing system
    4.
    发明授权
    Exception handling control in a secure processing system 有权
    安全处理系统中的异常处理控制

    公开(公告)号:US07383587B2

    公开(公告)日:2008-06-03

    申请号:US10714565

    申请日:2003-11-17

    IPC分类号: G06F17/30

    摘要: A data processing system includes a processor that can operate in a plurality of modes and in either a secure domain or a non-secure domain. At least one secure mode is a mode in the secure domain, and at least one non-secure mode is a mode in the non-secure domain. When the processor is executing a program in a secure mode and that program has access to secure data which is not accessible when the processor is operating in a non-secure mode, the processor is responsive to exception conditions for triggering exception processing. Specifically, the processor is responsive to a parameter specifying which of the exceptions should be handled by a secure mode exception handler executing in a secure mode and which should be handled by an exception handler executing in a mode within a current one of the secure domain and the non-secure domain when that exception occurs.

    摘要翻译: 数据处理系统包括可以以多种模式并且在安全域或非安全域中操作的处理器。 至少一个安全模式是安全域中的模式,并且至少一个非安全模式是非安全域中的模式。 当处理器以安全模式执行程序并且该程序可以访问当处理器以非安全模式操作时不可访问的安全数据时,处理器响应用于触发异常处理的异常条件。 具体地说,处理器响应于指定哪个异常应由安全模式执行的安全模式异常处理程序处理的参数,并且应该由在当前安全域内的模式中执行的异常处理程序处理, 发生异常时的非安全域。

    Exception types within a secure processing system
    6.
    发明申请
    Exception types within a secure processing system 有权
    安全处理系统中的异常类型

    公开(公告)号:US20090259846A1

    公开(公告)日:2009-10-15

    申请号:US12382647

    申请日:2009-03-20

    IPC分类号: H04L9/00

    摘要: An apparatus for processing data includes a processor operable in a plurality modes including at least one secure mode being a mode in a secure domain and at least one non-secure mode being a mode in a non-secure domain. When the processor is executing a program in a secure mode the program has access to secure data which is not accessible when the processor is operating in a non-secure mode. The processor is responsive to one or more exception conditions for triggering exception processing using an exception handler. The processor is operable to select the exception handler from among a plurality of possible exception handlers in dependence upon whether the processor is operating in the secure domain or the non-secure domain.

    摘要翻译: 一种用于处理数据的装置包括可以以多种模式操作的处理器,包括至少一种安全模式,即安全域中的模式,以及至少一种非安全模式是非安全域中的模式。 当处理器以安全模式执行程序时,程序可以访问当处理器以非安全模式运行时无法访问的安全数据。 处理器响应于一个或多个异常条件,以使用异常处理程序触发异常处理。 处理器可操作以依赖于处理器是否在安全域或非安全域中操作从多个可能的异常处理程序中选择异常处理程序。

    Program instruction interpretation
    8.
    发明授权
    Program instruction interpretation 有权
    程序说明解释

    公开(公告)号:US07089539B2

    公开(公告)日:2006-08-08

    申请号:US10081215

    申请日:2002-02-25

    IPC分类号: G06F9/45 G06F9/30

    CPC分类号: G06F9/45504

    摘要: Program instructions in the form of Java bytecodes may be subject to fixed mappings to processing operations or programmable mappings to processing operations. A system is provided with a fixed mapping hardware interpreter, a programmable mapping hardware interpreter and a software interpreter. The fixed mapping hardware interpreter is able to provide high speed interpretation of the common and simple bytecodes. The programmable mapping hardware interpreter is able to provide high speed interpretation of the simple and performance critical programmable bytecodes with the remaining bytecodes and more complicated bytecodes being handled by the software interpreter.

    摘要翻译: 以Java字节码形式的程序指令可能会对处理操作或可编程映射进行固定映射以进行处理操作。 系统提供有固定映射硬件解释器,可编程映射硬件解释器和软件解释器。 固定映射硬件解释器能够提供常用和简单字节码的高速解释。 可编程映射硬件解释器能够提供简单和性能关键的可编程字节码的高速解释,其余的字节码和更复杂的字节码由软件解释器处理。