A timer timing setting method, device and virtualization device

Abstract

Embodiments of the present application provide a timer timing setting method, device, and virtualization device. The method is applied in a virtualization device, and multiple processors are deployed in the virtualization device and run a first component. Constructing a second component on the first component through virtualization, the processor includes a proxy processor independent of the second component, the method includes: the second component notifies the first component of the timing of the timer ; The first component invokes the proxy processor to set a timer according to the timing. In this way, the system will also use the hardware of the proxy processor to generate the interrupt of the timer, so that the interrupt will not occur on the processor to which the second component belongs to cause the second component to exit, and the timer set by the virtual machine can be avoided. The virtual machine exits caused by the interrupt, thereby reducing the number of virtual machine exits and reducing the time-consuming setting of the timer.

Description

technical field [0001] The present application relates to the technical field of virtualization, in particular to a timer timing setting method, a timer timing setting device and a virtualization device. Background technique [0002] In cloud computing IaaS (Infrastructure as a Service, infrastructure as a service), cloud operators provide hosted physical machines, virtual machines and other facilities for different users to use according to their actual needs. [0003] Virtual Machine (Virtual Machine) service is one of the core services of IaaS. It refers to a system virtual machine, that is, a complete computer system that can be simulated, has complete hardware system functions, and runs in a completely isolated environment. [0004] The virtual machine cannot fully control all hardware resources. When accessing some hardware resources, it needs to exit to a non-virtualized state, and the host agent completes some resource access. [0005] If the program of the virtual ...

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Problems solved by technology

[0008] In the process of setting the timer, if there is a timing error, etc., this setting may be canceled, which will cause the virtual machine to exit. After the cancellation, the timer must be reset, which will also cause the virtual machine to exit.

At the same time, an interrupt is issued after the timer expires, which will also cause the virtual machine to exit

[0009] Moreover, aperiodic clocks are commonly used at present. After each clock interrupt arrives, the timer needs to be reset. Frequent setting of the timer will easily cause the virtual machine to exit frequently.

[0010] When the virtual machine exits, a lot of state saving and switching work is required, and these states need to be restored when entering the virtualized state again. Therefore, the exit of the virtual machine is cumbersome and time-consuming.

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