KairosVM: Deterministic Introspection for Real-Time Virtual Machine Hierarchical Scheduling

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Provided by: Virginia Systems
Topic: Hardware
Format: PDF
Consolidation and isolation are key technologies that drove the undisputed popularity of virtualization in most of the computer industry. This popularity has recently led to a growing interest in real-time virtualization, making this technology enter the real-time system industry. However, it has several issues due to the strict timing guarantees contracted. Moreover supporting legacy software stacks adds another level of complexity when the software is a black box. The authors present KairosVM, a latency bounded, real-time extension to Linux's KVM module. It aims to bridge the lack of communication of the real-time requirements between the guest scheduler and the host scheduler, exploiting virtual machine introspection.
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