search for: xoar

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2012 Jan 12
1
Questions about attacks on Xen
I have some questions about attacks on Xen. I am preparing a paper for an operating system we have built on top of Xen and I want to ensure we have certain facts straight. Among the things I have read include "Xen and the Art of Virtualization" and the XOAR paper. First, what power does Dom0 have? Of course I know that Dom0 manages the other domains and has direct access to hardware. I know that Dom0 can not directly access the Xen hypervisor code in memory (except in the case of attacks using DMA on IOMMU-less systems). But what about Dom0 accessing...