专利名称：VIRTUAL SECURE MODE FOR VIRTUAL
MACHINES
发明人：David A. Hepkin,Arun U. Kishan申请号：US14186415申请日：20140221
公开号：US20150082305A1公开日：20150319
专利附图：
摘要：A virtual machine manager (e.g., hypervisor) implements a virtual secure modethat makes multiple different virtual trust levels available to virtual processors of avirtual machine. Different memory access protections (such as the ability to read, write,
and/or execute memory) can be associated with different portions of memory (e.g.,memory pages) for each virtual trust level. The virtual trust levels are organized as ahierarchy with a higher level virtual trust level being more privileged than a lower virtualtrust level, and programs running in the higher virtual trust level being able to changememory access protections of a lower virtual trust level. The number of virtual trustlevels can vary, and can vary for different virtual machines as well as for different virtualprocessors in the same virtual machine.
申请人：Microsoft Corporation
地址：Redmond WA US
国籍：US
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