Improving GPOS Real-Time Responsiveness Using vCPU Migration in an Embedded Multicore Virtualization Platform

Lin, Tsung-Han; Mitake, Hitoshi; Nakajima, Tatsuo

doi:10.1109/cse.2013.107

Cited by 2 publications

(2 citation statements)

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“…RELATED WORK SPUMONE [4] is a small and lightweight virtualization layer designed to handle only the virtual CPU scheduling and dispatch of interrupts to the proper guest OS. Differently from most hypervisors, SPUMONE keeps the guest OSs in the processor's kernel mode.…”

Section: Introductionmentioning

confidence: 99%

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Hardware-assisted interrupt delivery optimization for virtualized embedded platforms

Moratelli

Filho

Hessel

2015

2015 IEEE International Conference on Electronics, Circuits, and Systems (ICECS)

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Virtualization is already a reality in modern embedded systems. Besides the direct relationship with cost reduction and improved resource utilization, virtualization enables the integration of real-time and general-purpose operating systems and applications on the same hardware platform. The resulting system may inherit deterministic timing characteristics for realtime along with a large software code base for general-purpose operating systems. However, the hypervisor must be carefully designed to take advantage of both types of operating systems. In this paper, we propose an interrupt policy for an embedded hypervisor using hardware-assisted virtualization. Our technique is flexible and can be adopted by applications with different timing constraints. Experimental results show that the interrupt delivery jitter on virtualized systems is close to non-virtualized when the proposed approach is used.

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Section: Introductionmentioning

confidence: 99%

“…For example, OKL4 [3] and SPUMONE [4] were designed for non-critical ES virtualization mixing general purpose OSs and RTOSs. MultiPARTS [5] and AUTOSTAR [6] were designed for automotive and critical embedded systems, respectively.…”

Section: Introductionmentioning

confidence: 99%