I tried same thing couple months ago i3-4310 didn't work, but i7-4770 did.
Looks like i3 igpu doesn't support it or smth.

On Tuesday, 13 September 2016, fulaiyang <fulaiy...@163.com> wrote:

> Hello,
>     I have realized the IGD passthrough with Intel(R) Core(TM) i7-4770 CPU
> ,but when I change the platform with the Intel Core i3-6100U,it doesn’t
> have any VGA output and windows7 refuses to boot with black screen. This
> problem has been bothering me for a long time,someone can help me?
>
> *dmesg:*
> Sep 12 14:04:39 ruijie-pc kernel: [254939.809585] DMAR: DRHD: handling
> fault status reg 2
> Sep 12 14:04:39 ruijie-pc kernel: [254939.809592] DMAR: DMAR:[DMA Write]
> Request device [00:02.0] fault addr 0
> Sep 12 14:04:39 ruijie-pc kernel: [254939.809592] DMAR:[fault reason 02]
> Present bit in context entry is clear
> Sep 12 14:10:11 ruijie-pc kernel: [255272.523271] vfio-pci 0000:00:02.0:
> enabling device (0400 -> 0403)
> Sep 12 14:10:11 ruijie-pc kernel: [255272.627404] vfio_ecap_init:
> 0000:00:02.0 hiding ecap 0x1b@0x100
> Sep 12 14:10:19 ruijie-pc kernel: [255280.602875] kvm: zapping shadow
> pages for mmio generation wraparound
>
> *My environment :*
> Intel Core i3-6100U @ 2.30GHz
> Intel Corporation Sky Lake Integrated Graphics
> Ubuntu 16.04 LTS
> Host kernel 4.6.6 x86_64 GNU/Linux
> qemu 2.7.0
>
>
>
>
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