Problem with xen config

[Christoph]

>>
>> xen_platform_pci=1
>
> This setting is not supported in the libvirt libxl driver, but AFAICT
> libxl sets the default to 'true' for HVM guests.
>
>> pci_msitranslate=1
>
> This is also not supported in libvirt and unfortunately defaults to
> 'false'.
>
>> pci_permissive = 1
>
> Patches have been submitted for this setting but so far there has not
> been agreement on the schema change
>
> https://www.redhat.com/archives/libvir-list/2020-April/msg01230.html

thats bad :(

>
>> max_grant_frames = "128
>
> This, along with max_event_channels, is supported as an attribute on
> the xenbus controller, e.g.
>
> <controller type='xenbus' maxGrantFrames='128'
> maxEventChannels='2047'/>

yep I know but why does virsh not translate it from xen-xm->xml?

>
>> and the pci passthrough devices are not there...
>
> Is setting maxGrantFrames (and possibly maxEventChannels) on the
> xenbus controller enough to see the devices in the guest?

no and I know these settings are suported but here the same, why does
virsh not translate it?

>
> Regards,
> Jim

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Greetz