Bare-metal microhypervisor prototype and measurement of real-time characteristics Online publication date: Wed, 03-Dec-2014
by Ivan Kolchin; Sergey Filippov
International Journal of Embedded Systems (IJES), Vol. 7, No. 1, 2015
Abstract: Hypervisors and virtual machines have become very popular in recent decades owing to a number of indisputable advantages. But there is a dark side of this fact especially for industry companies which are engaged in development of safety-relevant systems. The software becomes too complicated and bloated to meet all possible versions and configurations of hardware. As a result it is difficult to certify it with compliance to safety standards such as IEC 61508. An attempt to go another way is undertaken in this research. The way is to develop a bare-metal hypervisor for a particular platform with a certain set of peripheral devices and thus to reduce lines of code significantly. This approach allows making the software faster and more reliable in exchange for flexibility. The hardware specific bare-metal microhypervisor has been developed from scratch for x86 quadcore CPU. It can run three real-time virtual machines on separated cores. The main achievements are just not above 10 k lines of code and simplicity.
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