[Spice-devel] Vdagent not working on xen linux hvm DomUs

[Fabio Fantoni]

Il 06/12/2013 11:50, Wei Liu ha scritto:
> On Fri, Dec 06, 2013 at 11:15:17AM +0100, Fabio Fantoni wrote:
> [...]
>>>> I not mean virtio disk/net but virtio-serial channels used for
>>>> example by spice vdagent.
>>>> The libxl implentation xen side is correct and on windows domUs
>>>> vdagent is working (I'm using it since 2 year).
>>>> On linux domUs I found that virtio ports under /dev are missed/not
>>>> created and I not understand why.
>>> That's probably unplugged by Xen platform PCI device.
>>>
>>>> Recently I tried also with xen_platform_pci=0 and the Konrad's patch
>>>> (xen/pvhvm: If xen_platform_pci=0 is set don't blow up) but to no
>>>> avail.
>>>>
>>> I haven't followed up that patch so I am not sure what's happening.
>>>
>>> Wei.
>>>
>>>> Thanks for any reply.
>> I did another tests, adding pci=nomsi to kernel boot option creates
>> virtio-serial ports correctly and vdagent works also on linux domUs,
>> I also tried to enable the xen platform and also in that case
>> vdagent works.
>> So the problem is only about msi.
>> Added xen-devel to cc.
>> Any ideas on how to fix permanently without adding pci=nomsi?
>>
> As I remember it I wrote a patch for QEMU to make it capable of
> injecting MSI interrupt in Xen long time ago so it should work fine.
>
> Wei.

Is this?
http://git.qemu.org/?p=qemu.git;a=commit;h=f1dbf015dfb0aa7f66f710a1f1bc58b662951de2

thenis there a xen and/or qemu regression?

>
>> Thanks for any reply.