From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Jike Song <jike.song@intel.com>
Cc: "igvt-g@ml01.01.org" <igvt-g@ml01.01.org>,
"Reddy, Raghuveer" <raghuveer.reddy@intel.com>,
"White, Michael L" <michael.l.white@intel.com>,
"Cowperthwaite, David J" <david.j.cowperthwaite@intel.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"Li, Susie" <susie.li@intel.com>,
"Dong, Eddie" <eddie.dong@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
qemu-devel <qemu-devel@nongnu.org>,
"Zhou, Chao" <chao.zhou@intel.com>,
"Zhu, Libo" <libo.zhu@intel.com>,
"Wang, Hongbo" <hongbo.wang@intel.com>
Subject: Re: [Announcement] 2015-Q3 release of XenGT - a Mediated Graphics Passthrough Solution from Intel
Date: Thu, 19 Nov 2015 16:49:46 +0100 [thread overview]
Message-ID: <564DEF9A.3010901@redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1511191529370.1107@kaball.uk.xensource.com>
On 19/11/2015 16:32, Stefano Stabellini wrote:
> > In addition to Kevin's replies, I have a high-level question: can VFIO
> > be used by QEMU for both KVM and Xen?
>
> No. VFIO cannot be used with Xen today. When running on Xen, the IOMMU
> is owned by Xen.
I don't think QEMU command line compatibility between KVM and Xen should
be a design goal for GVT-g.
Nevertheless, it shouldn't be a problem to use a "virtual" VFIO (which
doesn't need the IOMMU, because it uses the MMU in the physical GPU)
even under Xen.
Paolo
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Jike Song <jike.song@intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>,
"Tian, Kevin" <kevin.tian@intel.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
"igvt-g@ml01.01.org" <igvt-g@ml01.01.org>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"White, Michael L" <michael.l.white@intel.com>,
"Dong, Eddie" <eddie.dong@intel.com>,
"Li, Susie" <susie.li@intel.com>,
"Cowperthwaite, David J" <david.j.cowperthwaite@intel.com>,
"Reddy, Raghuveer" <raghuveer.reddy@intel.com>,
"Zhu, Libo" <libo.zhu@intel.com>,
"Zhou, Chao" <chao.zhou@intel.com>,
"Wang, Hongbo" <hongbo.wang@intel.com>,
"Lv, Zhiyuan" <zhiyuan.lv@intel.com>,
qemu-devel <qemu-devel@nongnu.org>,
Gerd Hoffmann <kraxel@redhat.com>
Subject: Re: [Intel-gfx] [Announcement] 2015-Q3 release of XenGT - a Mediated Graphics Passthrough Solution from Intel
Date: Thu, 19 Nov 2015 16:49:46 +0100 [thread overview]
Message-ID: <564DEF9A.3010901@redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1511191529370.1107@kaball.uk.xensource.com>
On 19/11/2015 16:32, Stefano Stabellini wrote:
> > In addition to Kevin's replies, I have a high-level question: can VFIO
> > be used by QEMU for both KVM and Xen?
>
> No. VFIO cannot be used with Xen today. When running on Xen, the IOMMU
> is owned by Xen.
I don't think QEMU command line compatibility between KVM and Xen should
be a design goal for GVT-g.
Nevertheless, it shouldn't be a problem to use a "virtual" VFIO (which
doesn't need the IOMMU, because it uses the MMU in the physical GPU)
even under Xen.
Paolo
WARNING: multiple messages have this Message-ID (diff)
From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Jike Song <jike.song@intel.com>
Cc: "igvt-g@ml01.01.org" <igvt-g@ml01.01.org>,
"Tian, Kevin" <kevin.tian@intel.com>,
"Reddy, Raghuveer" <raghuveer.reddy@intel.com>,
qemu-devel <qemu-devel@nongnu.org>,
"White, Michael L" <michael.l.white@intel.com>,
"Cowperthwaite, David J" <david.j.cowperthwaite@intel.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"Li, Susie" <susie.li@intel.com>,
"Dong, Eddie" <eddie.dong@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
Alex Williamson <alex.williamson@redhat.com>,
Gerd Hoffmann <kraxel@redhat.com>,
"Zhou, Chao" <chao.zhou@intel.com>,
"Zhu, Libo" <libo.zhu@intel.com>,
"Wang, Hongbo" <hongbo.wang@intel.com>,
"Lv, Zhiyuan" <zhiyuan.lv@intel.com>
Subject: Re: [Qemu-devel] [Intel-gfx] [Announcement] 2015-Q3 release of XenGT - a Mediated Graphics Passthrough Solution from Intel
Date: Thu, 19 Nov 2015 16:49:46 +0100 [thread overview]
Message-ID: <564DEF9A.3010901@redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1511191529370.1107@kaball.uk.xensource.com>
On 19/11/2015 16:32, Stefano Stabellini wrote:
> > In addition to Kevin's replies, I have a high-level question: can VFIO
> > be used by QEMU for both KVM and Xen?
>
> No. VFIO cannot be used with Xen today. When running on Xen, the IOMMU
> is owned by Xen.
I don't think QEMU command line compatibility between KVM and Xen should
be a design goal for GVT-g.
Nevertheless, it shouldn't be a problem to use a "virtual" VFIO (which
doesn't need the IOMMU, because it uses the MMU in the physical GPU)
even under Xen.
Paolo
next prev parent reply other threads:[~2015-11-19 15:49 UTC|newest]
Thread overview: 176+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-25 8:31 [Announcement] Updates to XenGT - a Mediated Graphics Passthrough Solution from Intel Jike Song
2014-07-25 8:31 ` [Intel-gfx] " Jike Song
2014-07-29 10:09 ` Dario Faggioli
2014-07-29 10:09 ` [Xen-devel] " Dario Faggioli
2014-07-29 10:09 ` Dario Faggioli
2014-07-30 9:39 ` [Xen-devel] " Jike Song
2014-07-30 9:39 ` [Xen-devel] [Intel-gfx] " Jike Song
2014-07-31 13:58 ` [Xen-devel] " Dario Faggioli
2014-07-31 13:58 ` [Intel-gfx] " Dario Faggioli
2014-07-30 9:39 ` Jike Song
2014-12-04 2:45 ` [Intel-gfx] [Announcement] 2014-Q3 release of " Jike Song
2014-12-04 2:45 ` Jike Song
2014-12-04 2:45 ` [Intel-gfx] " Jike Song
2014-12-04 10:20 ` [Xen-devel] " Fabio Fantoni
2014-12-04 10:26 ` Tian, Kevin
2014-12-04 10:20 ` Fabio Fantoni
2015-01-09 8:51 ` [Intel-gfx] [Announcement] 2015-Q1 " Jike Song
2015-01-09 8:51 ` Jike Song
2015-01-09 8:51 ` [Intel-gfx] " Jike Song
2015-01-12 3:04 ` [Announcement] 2014-Q4 " Jike Song
2015-01-12 3:04 ` [Intel-gfx] " Jike Song
2015-01-12 3:04 ` Jike Song
2015-04-10 13:23 ` [Intel-gfx] [Announcement] 2015-Q1 " Jike Song
2015-04-10 13:23 ` Jike Song
2015-04-10 13:23 ` [Intel-gfx] " Jike Song
2015-07-07 2:49 ` [Announcement] 2015-Q2 " Jike Song
2015-07-07 2:49 ` [Intel-gfx] " Jike Song
2015-10-27 9:25 ` [Intel-gfx] [Announcement] 2015-Q3 " Jike Song
2015-10-27 9:25 ` Jike Song
2015-10-27 9:25 ` [Intel-gfx] " Jike Song
2015-11-18 18:12 ` Alex Williamson
2015-11-18 18:12 ` Alex Williamson
2015-11-18 18:12 ` [Qemu-devel] [Intel-gfx] " Alex Williamson
2015-11-18 18:12 ` Alex Williamson
2015-11-19 4:06 ` Tian, Kevin
2015-11-19 4:06 ` [Qemu-devel] [Intel-gfx] " Tian, Kevin
2015-11-19 4:06 ` Tian, Kevin
2015-11-19 7:22 ` Jike Song
2015-11-19 7:22 ` [Qemu-devel] [Intel-gfx] " Jike Song
2015-11-19 7:22 ` Jike Song
2015-11-19 15:32 ` Stefano Stabellini
2015-11-19 15:32 ` [Qemu-devel] " Stefano Stabellini
2015-11-19 15:32 ` Stefano Stabellini
2015-11-19 15:49 ` Paolo Bonzini
2015-11-19 15:49 ` Paolo Bonzini [this message]
2015-11-19 15:49 ` [Qemu-devel] " Paolo Bonzini
2015-11-19 15:49 ` Paolo Bonzini
2015-11-19 16:12 ` Stefano Stabellini
2015-11-19 16:12 ` [Qemu-devel] " Stefano Stabellini
2015-11-19 16:12 ` Stefano Stabellini
2015-11-19 15:52 ` Alex Williamson
2015-11-19 15:52 ` Alex Williamson
2015-11-19 15:52 ` [Qemu-devel] [Intel-gfx] " Alex Williamson
2015-11-19 15:52 ` Alex Williamson
2015-11-20 2:58 ` Jike Song
2015-11-20 2:58 ` [Qemu-devel] [Intel-gfx] " Jike Song
2015-11-20 2:58 ` Jike Song
2015-11-20 4:22 ` Alex Williamson
2015-11-20 4:22 ` [Qemu-devel] [Intel-gfx] " Alex Williamson
2015-11-20 4:22 ` Alex Williamson
2015-11-20 5:51 ` Jike Song
2015-11-20 5:51 ` Jike Song
2015-11-20 5:51 ` [Qemu-devel] [Intel-gfx] " Jike Song
2015-11-20 5:51 ` Jike Song
2015-11-20 6:01 ` Tian, Kevin
2015-11-20 6:01 ` [Qemu-devel] [Intel-gfx] " Tian, Kevin
2015-11-20 6:01 ` Tian, Kevin
2015-11-20 6:01 ` Tian, Kevin
2015-11-20 16:40 ` Alex Williamson
2015-11-20 16:40 ` [Qemu-devel] [Intel-gfx] " Alex Williamson
2015-11-20 16:40 ` Alex Williamson
2015-11-23 4:52 ` [Qemu-devel] " Jike Song
2015-11-23 4:52 ` Jike Song
2015-11-23 4:52 ` Jike Song
2015-11-20 16:40 ` Alex Williamson
2015-11-20 4:22 ` Alex Williamson
2015-11-20 2:58 ` Jike Song
2015-11-19 15:32 ` Stefano Stabellini
2015-11-19 7:22 ` Jike Song
2015-11-19 8:40 ` Gerd Hoffmann
2015-11-19 8:40 ` [Qemu-devel] [Intel-gfx] " Gerd Hoffmann
2015-11-19 8:40 ` Gerd Hoffmann
2015-11-19 11:09 ` Paolo Bonzini
2015-11-19 11:09 ` Paolo Bonzini
2015-11-19 11:09 ` [Qemu-devel] " Paolo Bonzini
2015-11-20 2:46 ` Jike Song
2015-11-20 2:46 ` [Qemu-devel] [Intel-gfx] " Jike Song
2015-11-20 2:46 ` Jike Song
2015-11-20 2:46 ` Jike Song
2015-11-20 6:12 ` Tian, Kevin
2015-11-20 6:12 ` Tian, Kevin
2015-11-20 6:12 ` [Qemu-devel] " Tian, Kevin
2015-11-20 6:12 ` Tian, Kevin
2015-11-20 8:26 ` Gerd Hoffmann
2015-11-20 8:26 ` [Qemu-devel] [Intel-gfx] " Gerd Hoffmann
2015-11-20 8:26 ` Gerd Hoffmann
2015-11-20 8:36 ` Tian, Kevin
2015-11-20 8:36 ` Tian, Kevin
2015-11-20 8:36 ` [Qemu-devel] [Intel-gfx] " Tian, Kevin
2015-11-20 8:36 ` Tian, Kevin
2015-11-20 8:46 ` Zhiyuan Lv
2015-11-20 8:46 ` Zhiyuan Lv
2015-11-20 8:46 ` [Qemu-devel] [Intel-gfx] " Zhiyuan Lv
2015-11-20 8:46 ` Zhiyuan Lv
2015-12-03 6:57 ` Tian, Kevin
2015-12-03 6:57 ` Tian, Kevin
2015-12-03 6:57 ` [Qemu-devel] [Intel-gfx] " Tian, Kevin
2015-12-03 6:57 ` Tian, Kevin
2015-12-04 10:13 ` Gerd Hoffmann
2015-12-04 10:13 ` [Qemu-devel] [Intel-gfx] " Gerd Hoffmann
2015-12-04 10:13 ` Gerd Hoffmann
2015-12-04 10:13 ` Gerd Hoffmann
2015-11-20 8:26 ` Gerd Hoffmann
2015-11-19 8:40 ` Gerd Hoffmann
2015-11-19 20:02 ` Alex Williamson
2015-11-19 20:02 ` Alex Williamson
2015-11-19 20:02 ` [Qemu-devel] [Intel-gfx] " Alex Williamson
2015-11-19 20:02 ` Alex Williamson
2015-11-20 7:09 ` Tian, Kevin
2015-11-20 7:09 ` [Qemu-devel] [Intel-gfx] " Tian, Kevin
2015-11-20 7:09 ` Tian, Kevin
2015-11-20 17:03 ` Alex Williamson
2015-11-20 17:03 ` Alex Williamson
2015-11-20 17:03 ` [Qemu-devel] [Intel-gfx] " Alex Williamson
2015-11-20 17:03 ` Alex Williamson
2015-11-20 7:09 ` Tian, Kevin
2015-11-20 8:10 ` Tian, Kevin
2015-11-20 8:10 ` [Qemu-devel] [Intel-gfx] " Tian, Kevin
2015-11-20 8:10 ` Tian, Kevin
2015-11-20 17:25 ` Alex Williamson
2015-11-20 17:25 ` [Qemu-devel] [Intel-gfx] " Alex Williamson
2015-11-20 17:25 ` Alex Williamson
2015-11-23 5:05 ` Jike Song
2015-11-23 5:05 ` Jike Song
2015-11-23 5:05 ` [Qemu-devel] [Intel-gfx] " Jike Song
2015-11-23 5:05 ` Jike Song
2015-11-20 17:25 ` Alex Williamson
2015-11-20 8:10 ` Tian, Kevin
2015-11-24 11:19 ` Daniel Vetter
2015-11-24 11:19 ` Daniel Vetter
2015-11-24 11:19 ` [Qemu-devel] [Intel-gfx] " Daniel Vetter
2015-11-24 11:19 ` Daniel Vetter
2015-11-24 11:49 ` Chris Wilson
2015-11-24 11:49 ` Chris Wilson
2015-11-24 11:49 ` [Qemu-devel] [Intel-gfx] " Chris Wilson
2015-11-24 11:49 ` Chris Wilson
2015-11-24 12:38 ` Gerd Hoffmann
2015-11-24 12:38 ` Gerd Hoffmann
2015-11-24 12:38 ` [Qemu-devel] [Intel-gfx] " Gerd Hoffmann
2015-11-24 12:38 ` Gerd Hoffmann
2015-11-24 13:31 ` Daniel Vetter
2015-11-24 13:31 ` [Qemu-devel] [Intel-gfx] " Daniel Vetter
2015-11-24 13:31 ` Daniel Vetter
2015-11-24 14:12 ` Gerd Hoffmann
2015-11-24 14:12 ` [Qemu-devel] [Intel-gfx] " Gerd Hoffmann
2015-11-24 14:12 ` Gerd Hoffmann
2015-11-24 14:19 ` Daniel Vetter
2015-11-24 14:19 ` [Qemu-devel] [Intel-gfx] " Daniel Vetter
2015-11-24 14:19 ` Daniel Vetter
2015-11-24 14:19 ` Daniel Vetter
2015-11-24 14:12 ` Gerd Hoffmann
2015-11-24 13:31 ` Daniel Vetter
2015-11-19 4:06 ` Tian, Kevin
2016-01-27 6:21 ` [Announcement] 2015-Q4 " Jike Song
2016-01-27 6:21 ` [Intel-gfx] " Jike Song
2016-04-28 5:29 ` [Announcement] 2016-Q1 " Jike Song
2016-04-28 5:29 ` [Intel-gfx] " Jike Song
2016-07-22 5:42 ` [Intel-gfx] [Announcement] 2016-Q2 " Jike Song
2016-07-22 5:42 ` Jike Song
2016-07-22 5:42 ` Jike Song
2016-11-06 14:59 ` [Intel-gfx] [Announcement] 2016-Q3 " Jike Song
2016-11-06 14:59 ` Jike Song
2016-11-06 14:59 ` [Intel-gfx] " Jike Song
2016-04-28 5:29 ` [Intel-gfx] [Announcement] 2016-Q1 " Jike Song
2016-01-27 6:21 ` [Intel-gfx] [Announcement] 2015-Q4 " Jike Song
2015-07-07 2:49 ` [Intel-gfx] [Announcement] 2015-Q2 " Jike Song
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