An inter-partition communication mechanism in multi-domain isolation operating system

Multi-domain isolation operating system is a highly secure and trusted operating system architecture. By dividing the system into several partitions, each partition focuses on a class of functions and operates independently, reducing coupling and negative effects between different partitions. Inter-partition communication is a key component of multi-domain isolation operating system architecture, and inter-partition communication can greatly affect the overall system availability, security, and reliability. However, there are relatively limited research results on inter-partition communication of multi-domain isolation oper-ating system architecture, so there is an urgent need for research in this area. Based on Linux operating system and referring to multiple independent levels of security and safety (MILS) architecture, the implementation of multi-domain isolation op-erating system in this paper provides resource access control service for partitions with different security levels. This paper designs an inter-partition communication mechanism of multi-domain isolation operating system which helps different partitions communicate with each other and records inter-partition communication information so that users can understand the inter-partition communication status in system runtime.