The University of New South Wales

High-performance microkernels and virtualisation on ARM and segmented architectures


Carl van Schaik and Gernot Heiser

NICTA, Sydney, Australia
UNSW, Australia

    Open Kernel Labs, Sydney, Australia


This paper describes the techniques used to achieve high context-switching performance on ARM processors for the L4 microkernel and a para-virtualised Linux running on top. We examine how the previously-published techniques can be used in L4 with minimal changes to the kernel API. We also propose future API changes which make it easier to maximise memory-management performance, not only on ARM but also on architectures supporting a segmented memory model.

BibTeX Entry

    month            = jan,
    organization     = {NICTA},
    booktitle        = {International Workshop on Microkernels for Embedded Systems},
    author           = {van Schaik, Carl and Gernot Heiser},
    title            = {High-Performance Microkernels and Virtualisation on {ARM} and Segmented Architectures},
    address          = {Sydney, Australia},
    paperurl         = {},
    year             = {2007}