发明授权
US08739159B2 Cache partitioning with a partition table to effect allocation of shared cache to virtual machines in virtualized environments
有权
使用分区表进行缓存分区，以实现虚拟化环境中共享高速缓存到虚拟机的分配
- 专利标题： Cache partitioning with a partition table to effect allocation of shared cache to virtual machines in virtualized environments
- 专利标题（中）： 使用分区表进行缓存分区，以实现虚拟化环境中共享高速缓存到虚拟机的分配
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申请号： US13444439申请日： 2012-04-11
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公开(公告)号： US08739159B2公开(公告)日： 2014-05-27
- 发明人: Jiang Lin , Lixin Zhang
- 申请人： Jiang Lin , Lixin Zhang
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理商 Stephen R. Tkacs; Stephen J. Walder, Jr.; John D. Flynn
- 主分类号： G06F9/455
- IPC分类号： G06F9/455 ; G06F12/00 ; G06F12/08
摘要：
A mechanism is provided in a virtual machine monitor for providing cache partitioning in virtualized environments. The mechanism assigns a virtual identification (ID) to each virtual machine in the virtualized environment. The processing core stores the virtual ID of the virtual machine in a special register. The mechanism also creates an entry for the virtual machine in a partition table. The mechanism may partition a shared cache using a vertical (way) partition and/or a horizontal partition. The entry in the partition table includes a vertical partition control and a horizontal partition control. For each cache access, the virtual machine passes the virtual ID along with the address to the shared cache. If the cache access results in a miss, the shared cache uses the partition table to select a victim cache line for replacement.
公开/授权文献
- US20120198172A1 Cache Partitioning in Virtualized Environments 公开/授权日：2012-08-02
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