----- Original Message ----- > From: "Daniel Helgenberger" <[email protected]> > To: "Martin Polednik" <[email protected]>, "Jorick Astrego" > <[email protected]> > Cc: [email protected] > Sent: Monday, January 19, 2015 3:45:01 PM > Subject: Re: [ovirt-users] When will ovirt add GPU/vGPU support in the admin > portal ? > > > > On 19.01.2015 12:24, Martin Polednik wrote: > > > > > > ----- Original Message ----- > >> From: "Jorick Astrego" <[email protected]> > >> To: [email protected] > >> Sent: Monday, January 19, 2015 10:14:35 AM > >> Subject: Re: [ovirt-users] When will ovirt add GPU/vGPU support in the > >> admin portal ? > >> > >> > >> On 01/19/2015 02:33 AM, lof yer wrote: > >>> > >>> Since I recently saw cloudstack have add this( > >>> https://cwiki.apache.org/confluence/display/CLOUDSTACK/GPU+and+vGPU+support+for+CloudStack+Guest+VMs > >>> ). > >>> And iGVT( > >>> https://01.org/zh/xen/blogs/wangbo85/2014/intel-gvt-gxengt-pubic-release?langredirect=1) > >>> is released. > >>> If ovirt add this, it'll be very competitive for ovirt in VDI platforms. > >>> > >> See below the response I got about 1 year ago, I don't know the current > >> plans/status... > >> > >>> -------- Forwarded Message -------- > >>> Subject: Re: [Spice-devel] [Users] desktop virtualization and GPU > >>> support > >>> Date: Wed, 16 Oct 2013 14:08:47 +0200 > >>> From: David Jaša <[email protected]> > >>> Reply-To: [email protected], users > >>> <[email protected]> > >>> CC: [email protected], users <[email protected]> > >>> > >>> > >>> > >>> Hi, > >>> > >>> I'm afraid that none of these cards will work. IIRC it was explained for > >>> nVidia approach that it would be necessary to add their closed-source > >>> code to qemu which is not going to happen. > >>> You might have better luck with AMD card "passthrough" approach but I'm > >>> not sure if GPUs can be passed through qemu/kvm and if so, how the > >>> GPU-rendered image then gets displayed. So YMMV and don't expect much. > >>> > >>> There is a WIP effort for qemu though that is hardware vendor agnostic - > >>> it's based on creation of virtual GPU in qemu called Virgil that passes > >>> 3D drawing commands to GPU on host. The project is in initial stage > >>> though so it won't be ready even for testing for quite some time. FWIW, > >>> there has been discussion about it on spice-devel in recent days and it > >>> will be presented on upcoming KVM forum so you can get pretty clear > >>> picture about its status from these sources. > >>> > >>> HTH, > >>> > >>> David > > > > Hello, > > > > There is quite active effort to implement device passthrough (including > > GPU, > > nics, usb etc.)[1].Physical GPU passthrough can be considered generic PCI > > passthrough > IMHO not quite in case of GPUs. I tested that recently with a > combination of EL7's new default VFIO support [1]. Two things could be > concluded working with Windows 7 guests and ATI Fire Pro GPUs: > - 'Old' PCI passthough unstable > - VFIO working and performing better (tested with Cinebench OpenGL [2], > about 98% of the bare metal performance)
I'm sorry, let me correct myself a bit: the legacy PCI-stub is not really supported at all, it's VFIO only (so "generic PCI" was meant as "generic VFIO"). What is not currently supported and will not be in a reasonable time frame is gVirt or overall intel GVT. > As for the stability, the results with VFIO where better in this case. > The tricky part seems to be the driver installation in the guest, there > the mandatory device probe in the installer. While PCI passthough > resulted in Blue Screens, VFIO went though. > > [1] > https://access.redhat.com/sites/default/files/pages/attachments/rhel_whatsnewrhel7beta_techoverview_.pdf > [2] http://www.maxon.net/products/cinebench/overview.html > > > which should be ready for oVirt 3.6. As for the vGPU, that will > > depend on technology used - SR-IOV would be supported along PCI > > passthrough, > > anything else might need additional work on our side. > > > > [1] http://www.ovirt.org/Features/hostdev_passthrough > > > > mpolednik > > > >> Met vriendelijke groet, With kind regards, > >> > >> Jorick Astrego > >> > >> Netbulae Virtualization Experts > >> > >> ---------------- > >> > >> Tel: 053 20 30 270 [email protected] Staalsteden 4-3A > >> KvK 08198180 > >> Fax: 053 20 30 271 www.netbulae.eu 7547 TA Enschede > >> BTW > >> NL821234584B01 > >> > >> ---------------- > >> > >> > >> _______________________________________________ > >> Users mailing list > >> [email protected] > >> http://lists.ovirt.org/mailman/listinfo/users > >> > > _______________________________________________ > > Users mailing list > > [email protected] > > http://lists.ovirt.org/mailman/listinfo/users > > > > -- > Daniel Helgenberger > m box bewegtbild GmbH > > P: +49/30/2408781-22 > F: +49/30/2408781-10 > > ACKERSTR. 19 > D-10115 BERLIN > > > www.m-box.de www.monkeymen.tv > > Geschäftsführer: Martin Retschitzegger / Michaela Göllner > Handeslregister: Amtsgericht Charlottenburg / HRB 112767 > _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
