From: Joerg Roedel <joerg.roedel@amd.com>
To: Avi Kivity <avi@redhat.com>
Cc: Joerg Roedel <joro@8bytes.org>,
kvm@vger.kernel.org, weidong.han@intel.com,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
mingo@redhat.com, amit.shah@redhat.com
Subject: Re: [PATCH 3/9] add frontend implementation for the IOMMU API
Date: Mon, 1 Dec 2008 16:46:03 +0100 [thread overview]
Message-ID: <20081201154603.GB12816@amd.com> (raw)
In-Reply-To: <4933F5A7.8020408@redhat.com>
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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next prev parent reply other threads:[~2008-12-01 15:46 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-27 15:40 [PATCH 0/9] Factor VT-d KVM functions into a generic API Joerg Roedel
2008-11-27 15:40 ` [PATCH 1/9] KVM: rename vtd.c to iommu.c Joerg Roedel
2008-11-27 16:32 ` Avi Kivity
2008-11-27 17:05 ` Joerg Roedel
2008-11-30 10:12 ` Avi Kivity
2008-11-27 15:40 ` [PATCH 2/9] introcude linux/iommu.h for an iommu api Joerg Roedel
2008-11-28 2:50 ` Han, Weidong
2008-11-28 2:50 ` Han, Weidong
2008-11-27 15:40 ` [PATCH 3/9] add frontend implementation for the IOMMU API Joerg Roedel
2008-11-28 2:50 ` Han, Weidong
2008-11-28 2:50 ` Han, Weidong
2008-12-01 18:16 ` 'Joerg Roedel'
2008-11-28 9:40 ` FUJITA Tomonori
2008-11-28 11:31 ` Joerg Roedel
2008-12-01 8:38 ` FUJITA Tomonori
2008-12-01 12:00 ` Joerg Roedel
2008-12-01 13:02 ` Muli Ben-Yehuda
2008-12-01 14:07 ` Joerg Roedel
2008-12-01 14:18 ` FUJITA Tomonori
2008-12-01 14:27 ` Joerg Roedel
2008-12-01 14:33 ` Avi Kivity
2008-12-01 15:46 ` Joerg Roedel [this message]
2008-12-01 15:58 ` FUJITA Tomonori
2008-12-01 16:59 ` Joerg Roedel
2008-12-01 17:27 ` Joerg Roedel
2008-11-27 15:40 ` [PATCH 4/9] select IOMMU_API when DMAR and/or AMD_IOMMU is selected Joerg Roedel
2008-11-27 15:40 ` [PATCH 5/9] VT-d: add domain init and destroy functions for IOMMU API Joerg Roedel
2008-11-27 15:40 ` [PATCH 6/9] VT-d: add device attach and detach " Joerg Roedel
2008-11-27 15:40 ` [PATCH 7/9] VT-d: add domain map and iova_to_phys " Joerg Roedel
2008-11-27 15:40 ` [PATCH 8/9] VT-d: register functions for the " Joerg Roedel
2008-11-28 2:50 ` Han, Weidong
2008-11-28 2:50 ` Han, Weidong
2008-11-27 15:40 ` [PATCH 9/9] KVM: change KVM iommu.c to use " Joerg Roedel
2008-11-27 15:43 ` [osrc-patches] [PATCH 0/9] Factor VT-d KVM functions into a generic API Joerg Roedel
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