On Wed, Feb 24, 2016 at 1:26 PM, Bronek Kozicki <[email protected]> wrote:
> On 24/02/2016 15:41, Daniel Pocock wrote: > >> >> >> Hi, >> >> I'm trying to use PCI passthrough to give an NVIDIA GPU to a VM with >> qemu / KVM. I've summarized my environment below and the error I get is >> near the bottom. Any help would be appreciated. >> >> There are a few guides I've been referring to already: >> https://wiki.debian.org/VGAPassthrough >> >> https://www.pugetsystems.com/labs/articles/Multiheaded-NVIDIA-Gaming-using-Ubuntu-14-04-KVM-585/ >> https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF >> https://bbs.archlinux.org/viewtopic.php?id=162768 >> http://www.linux-kvm.org/page/VGA_device_assignment >> > > > Hi Daniel > > > I'm successfully passing through two Quadro M5000 (to two instances of > Windows 10), looking at > http://us.download.nvidia.com/Windows/Quadro_Certified/361.91/361.91-win10-quadro-grid-release-notes.pdf > (page 9) it is not obvious that this would work for either your K420 or > mine M5000. One gotcha - when starting Windows I do not see boot screen at > all, only Windows logon scren after nVidia drivers had loaded. Explanation > is in Alex's email sent to this list on 6th Feb 2016, subject "No boot > screen on Quadro M5000?" - basically passed through Quadro cards are meant > to be secondary only (I use them as only card, though). However this small > quirk aside, this works for me very well. > Unfortunately K420 falls into the gap of unsupported and unknown between GeForce, which are clearly unsupported, but we know how to make them work, and Quardo K2000+, which are supported. Typically Quadro cards don't work as primary like GeForce do, and the NVIDIA driver will pull a Code 43 on them, so it probably requires some combination of secondary plus hiding KVM & Hyper-v (or changing hyper-v vendor info) to make it work. I'll note though that K420 is a GK107GL, as is the K2000, so x-pci-device-id might be an interesting experiment. And of course, the most important guide was missed from the list, the one at vfio.blogspot.com ;) Thanks, Alex
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