Dom0 reboots after HVM with pci-passthrough starts

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1

I am trying to attach an Nvidia GPU to an AppVM. I am able to attach the device using qvm-pci attach --persistent ... but when I start the VM, dom0 (and the whole system) reboots.

I’ve also included --option no-strict-reset=yes and gotten the same result.

There seems to be some other issues floating around related to PCI passthrough preventing AppVMs from starting, but I haven’t seen anything about it causing dom0 to reboot.

There doesn’t seem to be anything out of the ordinary in the dom0 system journal. Where else should I start looking to figure out what’s going on?

2

Is the nvidia gpu also being used for dom0 for display? If not what gpu is dom0 using?

3

Card is not attached to anything initially. Dom0 is using the CPU’s graphics for display.

4

Are you using a laptop or desktop?

With laptops, the dGPU and iGPU are intertwined in a way that usually makes it impossible to assign the dGPU to a VM.

In addition, Xen pass through for nvidia tends to work poorly or not at all vs amd/Radeon.

5

I am using a desktop. Cards are 1070Ti and CPU is 9th gen Intel i7.

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