From: Muli Ben-Yehuda <muli@il.ibm.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Greg KH <gregkh@suse.de>, Joerg Roedel <joerg.roedel@amd.com>,
kvm@vger.kernel.org, Han Weidong <weidong.han@intel.com>,
linux-kernel@vger.kernel.org, Alexander Graf <agraf@suse.de>,
iommu@lists.linux-foundation.org, Ingo Molnar <mingo@redhat.com>,
Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH 0/12] Factor VT-d KVM functions into a generic API (with multiple device assignment support)
Date: Thu, 4 Dec 2008 05:47:02 -0500 [thread overview]
Message-ID: <20081204104702.GE5541@il.ibm.com> (raw)
In-Reply-To: <20081203090304.GJ26275@8bytes.org>
On Wed, Dec 03, 2008 at 10:03:04AM +0100, Joerg Roedel wrote:
> > > > Have you tried porting any of the current iommu controllers to
> > > > this new framework to see if it works properly for them?
> > >
> > > It works currently for VT-d. I also port it to AMD IOMMU
> > > currently. With some extensions (offset for start address, flags
> > > and size limitation) it is also suitable for IOMMUs like GART or
> > > similar ones.
> >
> > What about the Calgary chipset?
>
> Calgary is quite similar to GART (there is something like the
> aperture and a linear single-level pagetable).
Actually, Calgary has multiple per-bus address spaces (each of which
is a single-level linear pagetable limited to 4GB of addressable
memory), so I think it should work with your current approach pretty
much as is, once we take into account these two (per-bus and 32-bit
addressability) limitations.
Cheers,
Muli
--
The First Workshop on I/O Virtualization (WIOV '08)
Dec 2008, San Diego, CA, http://www.usenix.org/wiov08/
<->
SYSTOR 2009---The Israeli Experimental Systems Conference
http://www.haifa.il.ibm.com/conferences/systor2009/
next prev parent reply other threads:[~2008-12-04 10:47 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-02 13:01 [PATCH 0/12] Factor VT-d KVM functions into a generic API (with multiple device assignment support) Joerg Roedel
2008-12-02 13:01 ` [PATCH 01/12] VT-d: Support multiple device assignment for KVM Joerg Roedel
2008-12-02 13:01 ` [PATCH 02/12] KVM: change to use new APIs for kvm vtd Joerg Roedel
2008-12-02 13:01 ` [PATCH 03/12] KVM: rename vtd.c to iommu.c Joerg Roedel
2008-12-02 13:01 ` [PATCH 04/12] introcude linux/iommu.h for an iommu api Joerg Roedel
2008-12-02 13:01 ` [PATCH 05/12] add frontend implementation for the IOMMU API Joerg Roedel
2008-12-02 13:01 ` [PATCH 06/12] select IOMMU_API when DMAR and/or AMD_IOMMU is selected Joerg Roedel
2008-12-02 13:01 ` [PATCH 07/12] KVM: change KVM iommu.c to use IOMMU API Joerg Roedel
2008-12-02 13:01 ` [PATCH 08/12] VT-d: adapt domain init and destroy functions for " Joerg Roedel
2008-12-02 13:01 ` [PATCH 09/12] VT-d: adapt device attach and detach " Joerg Roedel
2008-12-02 13:01 ` [PATCH 10/12] VT-d: adapt domain map and unmap " Joerg Roedel
2008-12-02 13:01 ` [PATCH 11/12] VT-d: adapt domain iova_to_phys function " Joerg Roedel
2008-12-02 13:01 ` [PATCH 12/12] VT-d: register functions for the " Joerg Roedel
2008-12-03 3:44 ` [PATCH 0/12] Factor VT-d KVM functions into a generic API (with multiple device assignment support) Greg KH
2008-12-03 7:50 ` Joerg Roedel
2008-12-03 7:53 ` Greg KH
2008-12-03 9:03 ` Joerg Roedel
2008-12-04 10:47 ` Muli Ben-Yehuda [this message]
2008-12-03 10:17 ` Han, Weidong
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