License: Creative Commons Attribution 4.0 International license (CC BY 4.0)
When quoting this document, please refer to the following
DOI: 10.4230/OASIcs.NG-RES.2023.2
URN: urn:nbn:de:0030-drops-177333
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2023/17733/
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Costa, Diogo ; Cuomo, Luca ; Oliveira, Daniel ; Savino, Ida Maria ; Morelli, Bruno ; Martins, José ; Tronci, Fabrizio ; Biasci, Alessandro ; Pinto, Sandro

IRQ Coloring: Mitigating Interrupt-Generated Interference on ARM Multicore Platforms

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OASIcs-NG-RES-2023-2.pdf (0.9 MB)

Abstract

Mixed-criticality systems, which consolidate workloads with different criticalities, must comply with stringent spatial and temporal isolation requirements imposed by safety-critical standards (e.g., ISO26262). This, per se, has proven to be a challenge with the advent of multicore platforms due to the inner interference created by multiple subsystems while disputing access to shared resources. With this work, we pioneer the concept of Interrupt (IRQ) coloring as a novel mechanism to minimize the interference created by co-existing interrupt-driven workloads. The main idea consists of selectively deactivating specific ("colored") interrupts if the QoS of critical workloads (e.g., Virtual Machines) drops below a well-defined threshold. The IRQ Coloring approach encompasses two artifacts, i.e., the IRQ Coloring Design-Time Tool (IRQ DTT) and the IRQ Coloring Run-Time Mechanism (IRQ RTM). In this paper, we focus on presenting the conceptual IRQ coloring design, describing the first prototype of the IRQ RTM on Bao hypervisor, and providing initial evidence about the effectiveness of the proposed approach on a synthetic use case.

BibTeX - Entry

@InProceedings{costa_et_al:OASIcs.NG-RES.2023.2,
  author =	{Costa, Diogo and Cuomo, Luca and Oliveira, Daniel and Savino, Ida Maria and Morelli, Bruno and Martins, Jos\'{e} and Tronci, Fabrizio and Biasci, Alessandro and Pinto, Sandro},
  title =	{{IRQ Coloring: Mitigating Interrupt-Generated Interference on ARM Multicore Platforms}},
  booktitle =	{Fourth Workshop on Next Generation Real-Time Embedded Systems (NG-RES 2023)},
  pages =	{2:1--2:13},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-95977-268-6},
  ISSN =	{2190-6807},
  year =	{2023},
  volume =	{108},
  editor =	{Terraneo, Federico and Cattaneo, Daniele},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/opus/volltexte/2023/17733},
  URN =		{urn:nbn:de:0030-drops-177333},
  doi =		{10.4230/OASIcs.NG-RES.2023.2},
  annote =	{Keywords: IRQ coloring, Interrupt Interference, Mixed-Criticality Systems, Hypervisors, Bao, Arm}
}

Keywords: IRQ coloring, Interrupt Interference, Mixed-Criticality Systems, Hypervisors, Bao, Arm
Collection: Fourth Workshop on Next Generation Real-Time Embedded Systems (NG-RES 2023)
Issue Date: 2023
Date of publication: 16.03.2023

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