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1. 发明授权

US08359575B2 Protection domains for a computer operating system 有权
标题翻译：计算机操作系统的保护域
公开(公告)号：US08359575B2
公开(公告)日：2013-01-22
申请号：US11742354
申请日：2007-04-30
申请人： David N. Wilner , John C. Fogelin , Kent D. Long , Thierry C. Preyssler , Maarten A. Koning , John Gordon , Cy H. Myers
发明人： David N. Wilner , John C. Fogelin , Kent D. Long , Thierry C. Preyssler , Maarten A. Koning , John Gordon , Cy H. Myers
IPC分类号： G06F9/44 , G06F13/00
CPC分类号： G06F9/468 , G06F9/44521 , G06F9/50
摘要： A protection domain system is implemented to provide protection for applications executing in a computing environment. Protection domains are allocated system resources and may contain executing tasks. The protection domain system may allow tasks to access resources in other protection domains to which attachments have been made. Attachment is transparent to the software developer. The protection domain system provides flexibility in implementing operating system services and defining protection hierarchies.
摘要翻译：实施保护域系统以为在计算环境中执行的应用程序提供保护。保护域被分配系统资源，可能包含执行任务。保护域系统可以允许任务访问已经进行附件的其他保护域中的资源。附件对软件开发人员是透明的。保护域系统提供了实现操作系统服务和定义保护层次的灵活性。

2. 发明授权

US06895583B1 Task control block for a computing environment 有权
标题翻译：计算环境的任务控制块
公开(公告)号：US06895583B1
公开(公告)日：2005-05-17
申请号：US09522541
申请日：2000-03-10
申请人： Maarten A. Koning
发明人： Maarten A. Koning
IPC分类号： G06F9/46 , G06F9/00
CPC分类号： G06F9/461
摘要： A task control block is implemented to provide more efficient user task access to task-specific variables and context information. The task control block uses multiple portions located in both protected system space and unprotected “user” space. Task-specific variables may be located in the user task control block, allowing user tasks to directly access these variables (without a system call). Sensitive task-specific state information may be located in the system task control block, preventing direct access by user tasks. The amount of time needed to perform context switching is reduced, and the execution time for user tasks may be reduced as well.
摘要翻译：实现任务控制块以提供对任务特定变量和上下文信息的更有效的用户任务访问。任务控制块使用位于受保护系统空间和未受保护的“用户”空间的多个部分。任务特定变量可能位于用户任务控制块中，从而允许用户任务直接访问这些变量（无需系统调用）。敏感的特定任务状态信息可以位于系统任务控制块中，防止用户任务的直接访问。执行上下文切换所需的时间量减少，并且用户任务的执行时间也可以减少。

3. 发明授权

US07213247B1 Protection domains for a computer operating system 失效
标题翻译：计算机操作系统的保护域
公开(公告)号：US07213247B1
公开(公告)日：2007-05-01
申请号：US09480309
申请日：2000-01-10
申请人： David N. Wilner , John C. Fogelin , Kent D. Long , Thierry C. Preyssler , Maarten A. Koning , John Gordon , Cy H. Myers
发明人： David N. Wilner , John C. Fogelin , Kent D. Long , Thierry C. Preyssler , Maarten A. Koning , John Gordon , Cy H. Myers
IPC分类号： G06F9/54 , G06F9/445 , G06F12/14
CPC分类号： G06F9/468 , G06F9/44521 , G06F9/50
摘要： A protection domain system is implemented to provide protection for applications executing in a computing environment. Protection domains are allocated system resources and may contain executing tasks. The protection domain system may allow tasks to access resources in other protection domains to which attachments have been made. Attachment is transparent to the software developer. The protection domain system provides flexibility in implementing operating system services and defining protection hierarchies.
摘要翻译：实施保护域系统以为在计算环境中执行的应用程序提供保护。保护域被分配系统资源，可能包含执行任务。保护域系统可以允许任务访问已经进行附件的其他保护域中的资源。附件对软件开发人员是透明的。保护域系统提供了实现操作系统服务和定义保护层次的灵活性。

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