Hi Cole, thanks for your mail.
I use:
* qemu-2:1.2.2-11.fc18
* ibvirt 0.10.2.5-1.fc18
My second GPU is 04:00.0 and the associated sound device is 04:00.1
So I do:
sudo chmod 666 /dev/vfio/vfio
echo "10de 06dd" > /sys/bus/pci/drivers/pci-stub/new_id
echo 0000:04:00.0 > /sys/bus/pci/devices/0000\:04\:00.0/driver/unbind
echo 0000:04:00.0 > /sys/bus/pci/drivers/pci-stub/bind
echo 0000:04:00.1 > /sys/bus/pci/devices/0000\:04\:00.1/driver/unbind
echo "1" > /sys/bus/pci/devices/0000:04:00.1/remove
Then I follow instructions in
https://fedoraproject.org/wiki/QA:Testcase_Virtualization_KVM_PCI_Device_...
assign the PCI slot.
Mario
On 20 June 2013 16:12, Cole Robinson <crobinso(a)redhat.com> wrote:
On 06/20/2013 03:30 AM, Mario Ceresa wrote:
> Dear all,
> does anybody know if it is currently possible to do GPU passthrough in
kvm? I
> have access to a dual Quadro 4000 setup and I would like to pass the
second
> one to kvm for use in a VM.
>
> I read a lot on internet and it seems feasible [1, 2, 3] and there is
even a
> reported success case [5].
>
> However when I start the VM the host reboots with PCIe error 928:
Completion
> timeout.
>
> My current setup is:
>
> * Fedora 18 with 3.9.4-200 x86_64
> * dmesg | grep -e DMAR -e IOMMU shows that they are both enabled
> * nvidia driver installed from rpmfusion
> * I use vfio assignment as per [4]
>
> Thanks and regards,
>
> Mario
>
>
> [1]
http://www.linux-kvm.org/page/VGA_device_assignment
> [2]
https://bbs.archlinux.org/viewtopic.php?id=162768
> [3]
>
http://samos-it.com/removedetach-a-pci-device-linux-kvm-vga-passthrgough-...
> [4]
>
https://fedoraproject.org/wiki/QA:Testcase_Virtualization_KVM_PCI_Device_...
> [5]
>
http://tavi-tech.blogspot.com.es/2012/05/vga-passthrough-kvm-fedora-17-an...
>
CC-ing Alex (the VFIO guy)
What qemu and libvirt versions are you using?
- Cole