METHOD AND DEVICE FOR DISABLING INTERRUPTION IN VIRTUALIZATION SYSTEM

摘要

Provided are a method and device for disabling an interruption in a virtualization system, which supports the interruption enabling/disabling of a Guest OS much better, and reduces the influence on the system running efficiency. The method includes: providing an interface to a virtualization operating system Guest OS so that the Guest OS calls the interface to set an interruption flag for an interruption flag bit register corresponding to the Guest OS in a shared memory; inspecting the interruption flag bit register; and if the interruption flag bit register shows that the Guest OS needs to disable an interruption, prohibiting the transmission of a virtual interruption to the Guest OS. The method provided in the present invention does not rely on the common compilation of a Hypervisor and a Guest OS, the Hypervisor need not share a code segment with the Guest OS, the access to a shared memory is carried out via a virtual address, the speed is high at the time of disabling/enabling an interruption, and the system running efficiency is high.