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

[fulaiyang]

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> 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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