Re: [Qemu-devel] [PATCH 1/8] spapr-iommu: add a bus for spapr-iommu devices

[Alexey Kardashevskiy]

On 04/11/2014 12:52 AM, Andreas Färber wrote:
> Am 10.04.2014 16:40, schrieb Alexey Kardashevskiy:
>> On 04/10/2014 10:40 PM, Alexander Graf wrote:
>>>
>>> Juan, is a different command line device order supposed to work with
>>> migration?
>>
>>
>> We discussed this on IRC with Paolo and the conclusion is that yes, the
>> order should not matter.
> 
> Huh?! If you ever tried changing the order of PCI devices such as
> virtio-blk-pci on the command line (or changing between if=virtio and
> -device virtio-blk-pci) then surely it does change the order of the
> /dev/vdX the guest sees and will be migration-incompatible. The order of
> -drive and -device however, for instance, does not seem to matter. But
> in this generality, your statement does not seem to reflect current reality.

As far as I can tell libvirt is trying to be precise and specifies PCI bus
name and PCI address for PCI devices.


-- 
Alexey