[vfio-users] issues about igd-passthrough using vfio-pci

Sinisa Tkalec xslisx at gmail.com
Wed Sep 14 17:11:18 UTC 2016


This was my issue, long time ago, but like I said it worked with 
i7-4770k not i3 4130, igpu is not same.

On 09/14/2016 02:59 AM, fulaiyang wrote:
> thank you,I also have tried many ways but it still didn't work. I 
> want to know what kind of gpu vfio support?
>
> At 2016-09-13 18:05:10, "overfl0w" <xslisx at gmail.com> wrote:
>
>     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 <fulaiyang at 163.com
>     <mailto:fulaiyang at 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 at 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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