| 摘要 |
PROBLEM TO BE SOLVED: To provide hypervisor driver management in a virtual machine environment. SOLUTION: A technique for providing access to a physical resource in the virtual machine environment is provided. A virtual machine may access the physical resource by using a device driver being divided. After monitoring the performance of device drivers operating in the virtual machine, such a device driver as its performance has degraded or such a device driver whose rate of context switch is high is discriminated. Such device drivers are dynamically adapted to parts executed in a reliable domain and in a non-reliable domain. By executing a part of the device driver in the reliable domain, the context switch is reduced for improved performance of the virtual machine. COPYRIGHT: (C)2011,JPO&INPIT
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