Input/output method in virtual machine environments
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Dec 21, 2015
filing date -
Dec 22, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A input/output method is disclosed for performing communications in a virtual machine (VM) environment between a host operating system (OS) and a guest OS. The input/output method includes performing request polling (RP) on an input/output event generated by a guest OS which is driven by a virtual machine (VM), sending an input/output request to a host OS, on which the VM runs. The input/output method further includes performing response waiting polling (RWP) on an input/output completion message generated by the host OS when the input/output event is detected through the RP, and sending an input/output response to the guest OS when the input/output completion message is detected through the RWP. In the method, the RP and the RWP are performed by multiple threads executed on the VM.
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