Driving separation system inside virtual machine and method

Abstract

The invention discloses a driving separation system inside a virtual machine and a method and relates to a computer fault tolerant technology. The system, which is simple, effective and capable of being compatible with existing operation systems and a driving program framework and isolating a driving program inside the virtual machine based on a full virtualization technology, is achieved, the driving program isolating system inside the virtual machine comprises a driving isolation uploading module which runs in a user mode of the virtual machine, a memory information monitoring module in a kernel mode of the virtual machine and a memory access control module inside a manger of the virtual machine, and memory information monitoring module in the kernel mode of the virtual machine comprises a packaging function library, a isolation control submodule and an information communication submodule.

Description

technical field [0001] The invention belongs to the field of computer science and relates to computer fault-tolerant technology, in particular to a drive isolation system and method inside a virtual machine. Background technique [0002] For high-reliability computer systems, the reliability of the operating system is very important, but due to the high complexity of the operating system, its reliability is still a crucial but unsolved problem. Through the extensible mechanism of the operating system, a large number of drivers developed by third parties can be loaded into the kernel. At the same time, the macro-kernel architecture of the traditional operating system makes the driver and the kernel run in the same address space and privilege level, and any driver failure can be easily transmitted to other parts of the kernel, seriously weakening the reliability of the system. Because the driver accounts for a huge proportion of the kernel code and often lacks perfect testing...

AI Technical Summary

Problems solved by technology

However, this method only uses a virtual machine to replace the whole machine to withstand possible system crashes, thereby improving the reliability of the whole machine, and does not improve the reliability of the driver in the virtual machine.

If the driver in the virtual machine fails, it will cause the failure or crash of the virtual machine instance, resulting in the interruption of all services provided by the virtual machine instance

In addition, each isolated driver runs an independent guest operating system, which also causes more performance loss

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