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Cache partitioning with a partition table to effect allocation of ways and rows of the cache to virtual machine in virtualized environments
Cache partitioning with a partition table to effect allocation of ways and rows of the cache to virtual machine in virtualized environments
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机译:使用分区表对缓存进行分区,以实现在虚拟化环境中将缓存的方式和行分配给虚拟机
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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.
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