Re: Intel HD Graphics 4600 Xen VGA Passthrough to Windows 7 Ultimate HVM domU

[Gordan Bobic <gordan@bobich.net>]

 On Thu, 25 Jul 2013 12:07:25 +0300, Pasi Kärkkäinen <pasik@iki.fi> 
 wrote:
> On Thu, Jul 25, 2013 at 08:58:58AM +0000, Ren, Yongjie wrote:
>> > > N.B. I didn't use the latest traditional qemu because of the 
>> following bug:
>> > > 
>> http://bugzilla-archived.xenproject.org//bugzilla/show_bug.cgi?id=1865
>> > >
>> >
>> > Hmm.. isn't that bug affecting qemu-traditional in general, not 
>> PCI/GPU
>> > passthru specifically?
>> > Or is it *only* PCI/GPU passthru that it breaks for you?
>> >
>> It's a general device assignment issue.
>> Any PCI device can't be assigned to a HVM guest with the latest 
>> qemu-traditional.
>>
>
> Ok. Is there already a separate thread on xen-devel about the
> qemu-traditional PCI assignment issue?
> If not, we should create one.

 FWIW, I'm using qemu-dm (i.e. traditional) in 4.3 and am successfully
 passing USB, audio, GPU PCI devices using it (as long as I stay under
 the 2GB domU RAM limit). So whatever the issue is it isn't generic.

 That bug report doesn't include the domU config file, and IIRC
 I saw a similar error when device_model/device_model_override and
 device_model_version don't match or are unavailable in the build
 (e.g. building without upstream and specifying traditional or
 vice versa). More info needed to verify, I think.

 Gordan

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel