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Date: Wed, 20 May 2009 11:43:10 +0200
From: Joerg Roedel <joerg.roedel@amd.com>
To: Ingo Molnar <mingo@elte.hu>
CC: "Eric W. Biederman" <ebiederm@xmission.com>,
       Yinghai Lu <yinghai@kernel.org>, Weidong Han <weidong.han@intel.com>,
       dwmw2@infradead.org, suresh.b.siddha@intel.com,
       linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
       kvm@vger.kernel.org
Subject: Re: [PATCH v2 2/2] Intel-IOMMU, intr-remap: source-id checking
Message-ID: <20090520094310.GF9835@amd.com>
References: <1242757912-6041-1-git-send-email-weidong.han@intel.com> <1242757912-6041-3-git-send-email-weidong.han@intel.com> <20090519115055.GB14305@elte.hu> <m1k54cj3iz.fsf@fess.ebiederm.org> <20090520082114.GC6736@elte.hu>
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On Wed, May 20, 2009 at 10:21:14AM +0200, Ingo Molnar wrote:
> 
> * Eric W. Biederman <ebiederm@xmission.com> wrote:
> > Being a major nitpick, I have to point out that the code is not 
> > structured to support other iommus, and I think AMD has one that 
> > can do this as well.
> 
> (Joerg Cc:-ed)

The AMD IOMMU does also have an interrupt remapping feature. But it is
currently unsupported in the Linux driver. When this is going to be
implemented I think we can go the same way as for device passthrough in
KVM. This was an Intel-only feature too and was later adapted to support
AMD IOMMU too.

Joerg

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