发明授权
US08578138B2 Enabling storage of active state in internal storage of processor rather than in SMRAM upon entry to system management mode
有权
在进入系统管理模式时，将活动状态存储在处理器的内部存储器中，而不是在SMRAM中
- 专利标题： Enabling storage of active state in internal storage of processor rather than in SMRAM upon entry to system management mode
- 专利标题（中）： 在进入系统管理模式时，将活动状态存储在处理器的内部存储器中，而不是在SMRAM中
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申请号： US12550737申请日： 2009-08-31
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公开(公告)号： US08578138B2公开(公告)日： 2013-11-05
- 发明人: Mahesh S. Natu , Thanunathan Rangarajan , Gautam B. Doshi , Shammanna M. Datta , Baskaran Ganesan , Mohan J. Kumar , Rajesh S. Parthasarathy , Frank Binns , Rajesh Nagaraja Murthy , Robert C. Swanson
- 申请人： Mahesh S. Natu , Thanunathan Rangarajan , Gautam B. Doshi , Shammanna M. Datta , Baskaran Ganesan , Mohan J. Kumar , Rajesh S. Parthasarathy , Frank Binns , Rajesh Nagaraja Murthy , Robert C. Swanson
- 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
- 代理机构： Trop, Pruner & Hu, P.C.
- 主分类号： G06F9/48
- IPC分类号： G06F9/48
摘要：
In one embodiment, the present invention includes a processor that has an on-die storage such as a static random access memory to store an architectural state of one or more threads that are swapped out of architectural state storage of the processor on entry to a system management mode (SMM). In this way communication of this state information to a system management memory can be avoided, reducing latency associated with entry into SMM. Embodiments may also enable the processor to update a status of executing agents that are either in a long instruction flow or in a system management interrupt (SMI) blocked state, in order to provide an indication to agents inside the SMM. Other embodiments are described and claimed.
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