CPU Virtualization Method Based on Privileged Instruction Library

Abstract

The invention discloses a CPU virtualization method based on a privileged instruction library, which is characterized in that: the CPU virtualization method is based on at least one physical processor PCPU, an operating system of CPU multi-core architecture, at least one virtual processor VCPU, a virtual machine Manager and firmware configured with privileged instruction library, virtual processor state management data structure VCPUCB, a set of data structures used to maintain VCPU privileged state, including state information related to the internal implementation of the processor, virtual processor state management data structure VCPUCB Placed in memory; virtual state base address register VCPUCB_PTR, used to store the base address pointing to the virtual processor state management data structure VCPUCB. The invention realizes the important VCPU entry and VCPU exit support in processor virtualization, supports the development of VCPU scheduling interface in the virtual machine manager, supports switching the processor privilege state to the virtual machine mode, and provides support for the virtual machine manager and the operating system kernel. It is transparent and supports CPU virtualization without adding any hardware extension interface.

Description

technical field [0001] The invention belongs to the technical field of central processing units, and in particular relates to a CPU virtualization method based on a privileged instruction library. Background technique [0002] With the substantial expansion of the resource scale of the computing system, the continuous enhancement of the processing capacity, the increasing variety of resources, and the flexible and diverse application requirements, the search for new computing principles and models has become a major challenge for the future information technology field. Computing system virtualization and cloud computing, as a new computing model to promote the development of computer technology, have already become the focus of research in the industry. [0003] Domestic processors started late, and in terms of processor architecture, they do not have the same systematic and complete hardware architecture support for virtualization as Intel VT technology. The invention uti...

AI Technical Summary

Problems solved by technology

[0003] Domestic processors started late, and there is no systematic and complete hardware architecture support for virtualization like Intel VT technology in terms of processor architecture.

Images