On Wed, 9 May 2018 11:19:16 +0000
"Wuzongyong (Euler Dept)" <cordius...@huawei.com> wrote:

> Hi,
> 
> I found that win7/win2012r2 reported  "This device cannot find enough free 
> resources that it can use"
> with a NVIDIA GPU passthrough behind a PCI Bridge.
> Here is a part of my xml:
> <controller type='pci' index='1' model='pci-bridge'>
>       <model name='pci-bridge'/>
>       <target chassisNr='1'/>
>       <address type='pci' domain='0x0000' bus='0x00' slot='0x03' 
> function='0x0'/>
> </controller>
>         <hostdev mode='subsystem' type='pci' managed='yes'>
>           <driver name='vfio'/>
>           <source>
>             <address domainis='0x0000' bus='0x85' slot='0x0' function='0x0'/>
>           </source>
> <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/>
> 
> There is a similar problem in 
> https://bugzilla.redhat.com/show_bug.cgi?id=1273172 but I still don't know 
> what
> Is the root cause

Neither do we.  Current status is doesn't work, don't do it.  Thanks,

Alex

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