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SECURE MEMORY ACCESS IN A VIRTUALIZED COMPUTING ENVIRONMENT
SECURE MEMORY ACCESS IN A VIRTUALIZED COMPUTING ENVIRONMENT
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机译:安全的内存访问在虚拟化计算环境中
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摘要
A processor supports secure memory access in a virtualized computing environment by employing requestor identifiers at bus devices (such as a graphics processing unit) to identify the virtual machine associated with each memory access request. The virtualized computing environment uses the requestor identifiers to control access to different regions of system memory, ensuring that each VM accesses only those regions of memory that the VM is allowed to access. The virtualized computing environment thereby supports efficient memory access by the bus devices while ensuring that the different regions of memory are protected from unauthorized access.
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