[vfio-users] GTX1060 Passthrough Error Code 43

Eddie Yen missile0407 at gmail.com
Sun Oct 30 00:17:47 UTC 2016

IME, it's easily get Code 43 if you also included virtual display in you
VM. No matter what kind of virtual display you use.

Also which guest OS you're using? It also happened if using Windows 7.

2016-10-29 2:45 GMT+08:00 Robert Coldbird <gentleman.trilby at gmail.com>:

> I've followed the usual suggestions for making the NVidia drivers comply,
> and none yielded useable results so far.
> I've disabled the kvm tag, changed the hyperv cpu id tag and even dumped
> the cards vbios and attached it to the passthrough.
> All of these changes showed no visible change to the way the driver
> reacted to my VM.
> The gpu works fine as long as I run the windows VGA default driver but the
> instant the NVidia driver is installed it bluescreens in the usual code 43
> fashion.
> Code 43 was verified afterwards using a spice / qxl display.
> In addition to that I've written a small C++ tool in Visual Studio to
> verify that the kvm tag and hyperv cpu id tags are hidden, and indeed, they
> are.
> This shows me that, despite all of the usual options being enabled and
> proven working, there is still something left in the setup that allows the
> NVidia driver to detect the VM environment.
> Does anyone of you guys have a clue as to what might be wrong here?
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