Computer Security Systems and Methods Using Hardware-Accelerated Access To Guest Memory From Below The Operating System
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United States of America Patent
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Issued Date -
Feb 18, 2016
app pub date -
Aug 14, 2014
filing date -
Aug 14, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Described systems and methods allow computer security software to access a memory of a host system with improved efficiency. A processor and a memory management unit (MMU) of the host system may be configured to perform memory access operations (read/write) in a target memory context, which may differ from the implicit memory context of the currently executing process. In some embodiments, the instruction set of the processor is extended to include new categories of instructions, which, when called from outside a guest virtual machine (VM) exposed by the host system, instruct the processor of the host system to perform memory access directly in a guest context, e.g., in a memory context of a process executing within the guest VM.
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