What kind of virtualization does a Linux virtual machine belong to?

What kind of virtualization does the Linux virtual machine belong to?

The Linux virtual machine belongs to system virtualization. System virtualization technology can virtualize multiple Linux virtual machines on a physical computer system. Their running environments are isolated and can be used in different instruction set architectures.

System virtualization

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System virtualization refers to the One or more virtual computer systems are virtualized on a physical computer system. A virtual computer system (referred to as a virtual machine) refers to a logical computer system with complete hardware functions that uses virtualization technology to run in an isolated environment, including operating systems and applications. Multiple different operating systems can be installed in a virtual machine, and these operating systems are independent of each other. The virtual machine and the physical computer system can have different instruction set architectures, which will cause every instruction on the virtual machine to be executed in the physical computer. Simulation execution on computer. Obviously, this will lead to poor performance. Therefore, we generally make the instruction set architecture of the virtual machine the same as that of the physical computer system. In this way, most instructions will run directly on the processor, and only those instructions that require virtualization will run on the virtual machine. In addition, there are 1. storage virtualization 2. memory virtualization 3. network virtualization and other technologies.

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