| 摘要 |
According to various illustrative embodiments of the present invention, a method to virtualize input/output comprises configuring an input/output adapter using a back-end driver component running back-end in a privileged operating system address space through a setup/control path. The method also comprises registering with the input/output adapter using the back-end driver component to receive information concerning a catastrophic event. The method also comprises transmitting the information concerning the catastrophic event to an active front-end driver component running in the front-end in a guest operating system address space, a communication path having been established between the active front-end driver component and the back-end driver component. The method also comprises listening with the back-end driver component to a request from the active front-end driver component. The method also comprises establishing an input/output context association between an input/output context in the input/output adapter and the active front-end driver component, upon receiving the request from the active front-end driver component, the input/output context association enabling the guest operating system to perform an isolated input/output operation directly with the input/output adapter through a respective data input/output path.
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