Invention Grant
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
- Patent Title: Cache partitioning with a partition table to effect allocation of shared cache to virtual machines in virtualized environments
- Patent Title (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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Application No.: US13444439Application Date: 2012-04-11
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Publication No.: US08739159B2Publication Date: 2014-05-27
- Inventor: Jiang Lin , Lixin Zhang
- Applicant: Jiang Lin , Lixin Zhang
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Stephen R. Tkacs; Stephen J. Walder, Jr.; John D. Flynn
- Main IPC: G06F9/455
- IPC: G06F9/455 ; G06F12/00 ; G06F12/08
Abstract:
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.
Public/Granted literature
- US20120198172A1 Cache Partitioning in Virtualized Environments Public/Granted day:2012-08-02
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