Marek Marczykowski-Górecki:> On Thu, Jan 18, 2018 at 03:06:00PM +0000, Simon 
Gaiser wrote:
>> awokd:
>>> On Thu, January 18, 2018 2:26 pm, "Marek Marczykowski-Górecki" wrote:
>>>
>>>>
>>>> According to logs provided by mossy-nw permissive mode is correctly
>>>> enabled in xen-pciback in dom0 for this device. The question here is what
>>>> else is needed for HVM (using qemu in stubdomain).
>>>
>>> My dom0 log shows that too, but the guest-dm/debug log showed the PCI
>>> device always getting added with permissive=false. Maybe that's what you
>>> are saying, qemu isn't passing the value along?
> 
>> Yes that's the problem. The guide sets permissive mode in pciback and
>> not via libxl. So the stubdomain never learns about it. Will take a look
>> today.
> 
> If that's the case, it looks we need another option for PCI device, like
> this:
> 
>     qvm-pci attach sys-net dom0:xx_yy.zz -o permissive=True

Yes, exactly. And if I didn't miss something we first need to teach
libvirt about the permissive option.

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