linux-kernel - Re: [PATCH 3/9] add frontend implementation for the IOMMU API

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Message-ID: <4933F5A7.8020408@redhat.com>
Date:	Mon, 01 Dec 2008 16:33:11 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Joerg Roedel <joro@...tes.org>
CC:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>, muli@...ibm.com,
	kvm@...r.kernel.org, weidong.han@...el.com,
	linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
	mingo@...hat.com, amit.shah@...hat.com
Subject: Re: [PATCH 3/9] add frontend implementation for the IOMMU API

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.

-- 
error compiling committee.c: too many arguments to function

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