I have a theory I am playing with now that it could be something to do with the PCI id's of the parts of the card. On the host machine they are as follows:
06:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 690] (rev a1) 06:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1) 07:00.0 3D controller: NVIDIA Corporation GK104 [GeForce GTX 690] (rev a1) 07:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1) I am going to try and replicate these Id's as close as possible within a Linux VM and then install Windows in that VM once I succeed. With a bit of luck it will then stop Code 43'ing. I will get back to you and let you know either way. On Fri, 11 Dec 2015 at 10:28 Alan Jenkins <alan.james.jenk...@gmail.com> wrote: > Hmm I am starting to think that this is not nVidia's monkeying with the > driver. I just tried installing driver 337.50 which I believe is from > before they "accidentally" added the bugs that cause us problems and I am > still getting Code 43. > > With regards to the ignore_msrs option for KVM it has been enabled during > all of my recent testing as I read that that helps. > > To summarise what I have tried so far: > > * Double checked that PCI-E power connectors are plugged into the card > properly (they were and the card was working fine in windows but checked > anyway to rule it out). > > * Tried both q35 and i440FX chipsets. > > * Installed nVidia's 337.50 beta driver which I believe was from before > the restrictions. > > Is there any possibility that there is some quirk with passing through a > gtx690 as it is a dual GPU card? Has anyone else had success with one? > > Thanks, > > Alan Jenkins > > On Fri, 11 Dec 2015 10:04 Hristo Iliev <hri...@hiliev.eu> wrote: > >> On Fri, 11 Dec 2015 08:08:41 +0000 >> Alan Jenkins <alan.james.jenk...@gmail.com> wrote: >> >> > Hey guys, >> > >> > I have spent the last 2 days experimenting trying to get my GTX690 >> passed >> > through to a Windows 10 guest and since succeeding have been getting >> > nothing but Code 43 errors. >> > >> > In Windows 10 I am currently using the latest nVidia driver (359.06). >> > >> > My libvirt xml is here http://pastebin.com/KY9QWhcu note that there is >> a >> > device commented out from passthrough, that is a PCI express SSD which I >> > will be trying to make work but for the time being I am focusing on >> > getting getting the GTX 690 to function (remember it is a dual GPU card >> > which is why there is so much forwarded). >> > >> > I am running Arch Linux with the linux-vfio-lts kernel from AUR as I >> > discovered the hard way that there is currently a bug in the normal >> > kernels that causes passthrough to hang the VM while it is loading >> > Windows and cause the host machine to stutter. The exact kernel version >> > is: 4.1.13-1-vfio-lts #1 SMP PREEMPT Thu Dec 10 13:21:54 GMT 2015 x86_64 >> > GNU/Linux. >> > >> > My libvirt version is: 1.3.0-1. >> > My Tianocore uefi is from this RPM: >> > edk2.git-ovmf-x64-0-20151209.b1361.gfaec499.noarch.rpm >> > >> > Have nVidia stepped up their efforts to block us from using vga >> > passthrough or is there something I have missed in my XML that could be >> > indicating to the driver that it is running in a VM which then causes it >> > to Code 43 me? >> > >> >> Hi Alan, >> >> Besides switching to a 440FX machine type, try also commenting out the >> following: >> >> <hyperv> >> <relaxed state='off'/> >> <vapic state='off'/> >> <spinlocks state='off'/> >> </hyperv> >> >> My Windows 10 VM (working XML config attached) works fine without it and I >> regularly update the driver via NVIDIA Experience. For the latter to work, >> add to /etc/modprobe.d/kvm.conf the following (create the file if it >> doesn't exist): >> >> options kvm ignore_msrs=1 >> >> While not strictly needed for the NVIDIA driver to work, it makes some >> programs that probe for various CPU features, including NVIDIA >> Experience, happy. >> >> Regards, >> >> Hristo >> >> > Thanks for any help in advance, >> > >> > Alan Jenkins >> >>
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