Xen devel - Aug 2012 - xen_platform_pci

I tried setting xen_platform_pci=0 on my test ubuntu 11.10 livecd VM
hoping it would run in HVM only mode, but the guest''s logs showed it
detecting the Xen host and loaded the PV netfront driver (after
modprobe).  Is this expected behavior?  Is there no way to force HVM
only and not PVHVM or total PV?

Setup:
Xen Unstable
Qemu Upstream

Thanks,
David

On Fri, 2012-08-03 at 17:39 +0100, David Erickson wrote:
> I tried setting xen_platform_pci=0 on my test ubuntu 11.10 livecd VM
> hoping it would run in HVM only mode, but the guest''s logs showed
it
> detecting the Xen host and loaded the PV netfront driver (after
> modprobe).  Is this expected behavior?  Is there no way to force HVM
> only and not PVHVM or total PV?
> 
> Setup:
> Xen Unstable
> Qemu Upstream
It looks like libxl doesn''t propagate the xen_platform_pci setting to
upstream qemu (only does it for trad). Anthony -- is this something you
can look into please.

On 08/03/12 17:49, Ian Campbell wrote:
> On Fri, 2012-08-03 at 17:39 +0100, David Erickson wrote:
>> I tried setting xen_platform_pci=0 on my test ubuntu 11.10 livecd VM
>> hoping it would run in HVM only mode, but the guest''s logs
showed it
>> detecting the Xen host and loaded the PV netfront driver (after
>> modprobe).  Is this expected behavior?  Is there no way to force HVM
>> only and not PVHVM or total PV?
>>
>> Setup:
>> Xen Unstable
>> Qemu Upstream
>
> It looks like libxl doesn''t propagate the xen_platform_pci setting
to
> upstream qemu (only does it for trad). Anthony -- is this something you
> can look into please.
>
I will. Both QEMU and libxl will need to be changed.

-- 
Anthony PERARD