发明授权
US08879301B2 Method and apparatus for controlling state information retention in an apparatus
有权
用于控制装置中的状态信息保持的方法和装置
- 专利标题: Method and apparatus for controlling state information retention in an apparatus
- 专利标题(中): 用于控制装置中的状态信息保持的方法和装置
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申请号: US13616142申请日: 2012-09-14
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公开(公告)号: US08879301B2公开(公告)日: 2014-11-04
- 发明人: David Mayhew , Mark Hummel , Michael Ignatowski
- 申请人: David Mayhew , Mark Hummel , Michael Ignatowski
- 申请人地址: US CA Sunnyvale
- 专利权人: Advanced Micro Devices, Inc.
- 当前专利权人: Advanced Micro Devices, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Faegre Baker Daniels LLP
- 主分类号: G11C11/00
- IPC分类号: G11C11/00 ; G11C13/00 ; G11C14/00 ; H03K19/00 ; G11C11/412 ; G11C5/00
摘要:
A method and apparatus for controlling state information retention determines at least a state information save or restore condition for at least one processing circuit such as one or more CPU or GPU cores or pipelines, in an integrated circuit. In response to determining the state information save or restore condition, the method and apparatus controls either or both of saving or restoring of state information for different virtual machines operating on the processing circuit, into corresponding on-die persistent passive variable resistance memory. The state information save or restore condition is a virtual machine level state information save or restore condition. State information for each of differing virtual machines is saved or restored from differing on-die passive variable resistance memory cells that are assigned on a per-virtual machine basis.