[vfio-users] vgaarb setting as boot device

Cale Rogers cale.rogers.m at gmail.com
Fri Aug 19 22:57:42 UTC 2016


Sorry, here is the output of /proc/iomem.

http://pastebin.com/raw/Gc8QcrJx

On Fri, Aug 19, 2016 at 3:52 PM Cale Rogers <cale.rogers.m at gmail.com> wrote:

> Hi All,
>
> I seem to be running into a strange issue I can't find a fix for. My rig
> is:
> Gigabyte x99p
> Intel i7 5930
> 4x GTX 1080
>
> The main issue is that I can't passthrough all 4 of my video cards. The
> last one in use will be chosen as "boot device" by vgaarb according to
> dmesg. I have tested this by removing one card and it set the PCI boot
> device as the next one in line and I was then unable to pass that one
> through. Is there a way to prevent vgaarb from setting a boot device at
> all? I really don't need a primary graphics card as I am just using ssh to
> get into the server.
>
> dmesg | grep vgaarb
> [ 8.402525] vgaarb: device added:
> PCI:0000:4b:00.0,decodes=io+mem,owns=none,locks=none
> [ 8.402527] vgaarb: device added:
> PCI:0000:4c:00.0,decodes=io+mem,owns=none,locks=none
> [ 8.402529] vgaarb: device added:
> PCI:0000:4d:00.0,decodes=io+mem,owns=none,locks=none
> [ 8.402532] vgaarb: setting as boot device: PCI:0000:4e:00.0
> [ 8.402532] vgaarb: device added:
> PCI:0000:4e:00.0,decodes=io+mem,owns=io+mem,locks=none
> [ 8.402533] vgaarb: loaded
> [ 8.402534] vgaarb: bridge control possible 0000:4e:00.0
> [ 8.402534] vgaarb: bridge control possible 0000:4d:00.0
> [ 8.402535] vgaarb: bridge control possible 0000:4c:00.0
> [ 8.402536] vgaarb: bridge control possible 0000:4b:00.0
>
>
>
>
>
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