发明授权
US07219241B2 Method for managing virtual and actual performance states of logical processors in a multithreaded processor using system management mode
有权
使用系统管理模式管理多线程处理器中的逻辑处理器的虚拟和实际性能状态的方法
- 专利标题： Method for managing virtual and actual performance states of logical processors in a multithreaded processor using system management mode
- 专利标题（中）： 使用系统管理模式管理多线程处理器中的逻辑处理器的虚拟和实际性能状态的方法
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申请号： US10307146申请日： 2002-11-30
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公开(公告)号： US07219241B2公开(公告)日： 2007-05-15
- 发明人: Barnes Cooper , Grant H. Kobayashi
- 申请人： Barnes Cooper , Grant H. Kobayashi
- 申请人地址： US CA Santa Clara
- 专利权人： Intel Corporation
- 当前专利权人： Intel Corporation
- 当前专利权人地址： US CA Santa Clara
- 代理商 Cyndi M. Wheeler
- 主分类号： G06F1/26
- IPC分类号： G06F1/26
摘要：
A power management technique uses system management interrupt (SMI) to manage performance states of logical processors in a physical processor. Each logical processor is associated with a virtual performance state and an actual performance state. A request to retrieve or to change the virtual performance state causes the SMI to be generated. The virtual performance state is a state known to an operating system (OS). The actual performance state is a state that the logical processor is operating at.
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