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1. 发明申请

WO2009029643A3 DYNAMIC CORE SWITCHING 审中-公开
标题翻译：动态芯切换
公开(公告)号：WO2009029643A3
公开(公告)日：2009-12-30
申请号：PCT/US2008074416
申请日：2008-08-27
申请人： MARVELL WORLD TRADE LTD , SUTARDJA SEHAT , CHEN HONG-YI , SAKARDA PREMANAND , FULLERTON MARK N , HEEB JAY
发明人： SUTARDJA SEHAT , CHEN HONG-YI , SAKARDA PREMANAND , FULLERTON MARK N , HEEB JAY
IPC分类号： G06F1/32
CPC分类号： G06F1/3293 , G06F1/3203 , G06F1/3287 , G06F1/329 , G06F9/3017 , G06F9/30174 , G06F9/30189 , G06F9/38 , G06F9/3885 , G06F9/461 , G06F9/4856 , G06F9/4893 , Y02B60/121 , Y02B60/1282 , Y02B60/144 , Y02B60/162 , Y02B60/32 , Y02D10/122 , Y02D10/171 , Y02D10/24 , Y02D10/32 , Y02D50/20
摘要： A system includes a first asymmetric core, a second asymmetric core, and a core switching module. The first asymmetric core executes an application when the system operates in a first mode and is inactive when the system operates in a second mode. The second asymmetric core executes the application when the system operates in the second mode. The core switching module switches operation of the system between the first mode and the second mode. The core switching module selectively stops processing of the application by the first asymmetric core after receiving a first control signal. The core switching module transfers a first state of the first asymmetric core to the second asymmetric core. The second asymmetric core resumes executing the application in the second mode.
摘要翻译：系统包括第一不对称核心，第二非对称核心和核心交换模块。当系统以第一模式操作时，第一非对称核执行应用，并且当系统以第二模式操作时，该状态不活动。当系统以第二模式运行时，第二个非对称核心执行应用程序。核心交换模块在第一模式和第二模式之间切换系统的操作。核心交换模块在接收到第一控制信号之后选择性地停止第一非对称核心处理应用程序。核心交换模块将第一不对称核心的第一状态传送到第二不对称核心。第二非对称核心在第二模式中恢复执行应用程序。

2. 发明申请

WO2008100414B1 SECURITY FOR CODES RUNNING IN NON-TRUSTED DOMAINS IN A PROCESSOR CORE 审中-公开
标题翻译：在处理器核心中的非信任域中运行代码的安全性
公开(公告)号：WO2008100414B1
公开(公告)日：2008-11-13
申请号：PCT/US2008001668
申请日：2008-02-08
申请人： MARVELL WORLD TRADE LTD , FULLERTON MARK N
发明人： FULLERTON MARK N
IPC分类号： G06F21/00
CPC分类号： H04L63/10 , G06F21/53 , G06F21/54 , G06F21/74
摘要： A method and apparatus configure a trusted domain and a plurality of isolated domains in a processor core. Each isolated domain is assigned a unique domain identifier. One or more resources are associated with each isolated domain. The associations are stored as permissions to access physical addresses of resources. Code to be executed by a hardware device is assigned to one of the isolated domains. The domain identifier for the assigned isolated domain is written to the hardware device. When the hardware device executes the code, each instruction is logically tagged with the domain identifier written to the hardware device. An instruction includes request to access a physical address. The hardware device compares the domain identifier of the instruction with the permissions. If the permissions allow the domain identifier to access the physical address, then access to the resource at the physical address is allowed. Access is otherwise blocked.
摘要翻译：方法和装置在处理器核心中配置可信域和多个隔离域。每个隔离域都被分配一个唯一的域标识符。一个或多个资源与每个孤立的域相关联。这些关联被存储为访问资源的物理地址的权限。要由硬件设备执行的代码被分配给一个隔离的域。分配的隔离域的域标识符写入硬件设备。当硬件设备执行代码时，每个指令都用写入硬件设备的域标识符进行逻辑标记。指令包括访问物理地址的请求。硬件设备将指令的域标识与权限进行比较。如果权限允许域标识符访问物理地址，则允许访问物理地址上的资源。访问被阻止。

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