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https://hdl.handle.net/1822/36865
Título: | Cache full-virtualization for the PowerPC 405-S |
Autor(es): | Carvalho, Adriano Afonso, Francisco Cardoso, Paulo Cabral, Jorge Ekpanyapong, Mongkol Montenegroz, Sergio Tavares, Adriano |
Data: | 2013 |
Editora: | IEEE |
Resumo(s): | As real-time embedded systems become overwhelmingly complex, hypervisor-based architectures are increasingly being used. Hypervisor-based architectures can support such level of complexity and, at the same time, provide real-time performance while reducing the size, cost and time-to-market of such systems. Modern processors provide cache facilities which can increase their performance substantially. Similarly, in hypervisor-based architectures, by providing virtual machines (VM) with such facilities a significant improvement in their performance can be obtained as we conclude in this work. This article presents a methodology to fully virtualize the cache facilities of the IBM PowerPC 405-S. To the best of our knowledge, this is the first time cache virtualization is openly described. A careful mapping between a VM's cache-related configuration and the processor's configuration is done, accompanied by the emulation of 5 cache-related privileged instructions. Even though some issues have been detected, a simple solution is provided for all of them. The results show that cache virtualization works with minimal virtualization overhead. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/36865 |
ISBN: | 978-1-4799-0752-6 |
DOI: | 10.1109/INDIN.2013.6889113 |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
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Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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06889113.pdf Acesso restrito! | 171,24 kB | Adobe PDF | Ver/Abrir |