On 09/08/2017 02:12 AM, Iru Cai wrote:
On Fri, Sep 8, 2017 at 2:02 PM, Taiidan@gmx.com Taiidan@gmx.com wrote:
On 09/08/2017 12:44 AM, Iru Cai wrote:
On Fri, Sep 8, 2017 at 11:42 AM, Taiidan@gmx.com Taiidan@gmx.com wrote:
On 09/07/2017 11:21 PM, Iru Cai wrote:
Hi,
I have a problem about PCI passthrough on KGPE-D16. I plugged in a PCI to USB adapter to the PCI slot, and it's in IOMMU group 7 with the ASpeed video card and the LSI 1394a controller. I try to pass them all to a VM, but then kernel crashes. I tried in Linux 4.9.47 and Linux 4.12.10.
Does anyone with KGPE-D16 have this problem?
Iru
You are attempting to pass the primary video device to a VM which hardly
ever works, I tried the same thing and it didn't work (I wanted my PCI sound card in the VM, and as PCI doesn't support ACS and all the PCI devices on the D16 are behind the same bridge they are in the same IOMMU group so I had to do that - I ended up buying a USB sound adapter)
Now I'm using GTX 650 as my primary video device and not using the on
board ASpeed video card.
Also I tried to pass the onboard USB controller to the VM, and also crashed the kernel.
Damn :[ FYI you forgot to reply all - please re post this to the list :]
Hmm can I have dmesg logs and your libvirt or w/e VM config files? for the new config you are trying. I am playing games right now with my pass thru usb ports.
So are you using vfio-pci or pci-stub? I don't know if I can use pci-stub in libvirt, but vfio-pci will require all devices in an IOMMU group passed to a VM, and I don't use a modded kernel.
VFIO-PCI I pass thru my video card, an onboard nic and an onboard usb controller (all three usb subdevices) - works great and they're all in their own iommu group.