Messages in this thread | | | Date | Mon, 1 Dec 2008 16:46:03 +0100 | From | Joerg Roedel <> | Subject | Re: [PATCH 3/9] add frontend implementation for the IOMMU API |
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On Mon, Dec 01, 2008 at 04:33:11PM +0200, Avi Kivity wrote: > Joerg Roedel wrote: > > Hmm, is there any hardware IOMMU with which we can't emulate domains by > > partitioning the IO address space? This concept works for GART and > > Calgary. > > > > > > Is partitioning secure? Domain X's user could program its hardware to > dma to domain Y's addresses, zapping away Domain Y's user's memory.
No its not secure. But this problem exists with pv-dma without iommu too.
Joerg
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