[libvirt] [PATCH] qemu migration: assign addresses in xml passed as parameter

[Nikolay Shirokovskiy]

On 15.03.2016 21:24, Jiri Denemark wrote:
> On Tue, Feb 09, 2016 at 11:36:32 +0300, Nikolay Shirokovskiy wrote:
>> Usecase:
>>
>> 1. define domain with xml A where addresses are not set
>> 2. migrate with '--xml A'
> 
> This use case is incorrect. To make sure the ABI compatibility checks
> pass, you should take the XML back from libvirt. In addition to
> assigning PCI addresses, libvirt may add some implicit devices (such as
> USB controllers, keyboards, balloon device, ...) or even reorder some
> elements in the XML.
> 
> That said, you should follow the steps below:
> 
> - define a domain using A.xml
> - start the domain
> - fetch the updated XML (virsh dumpxml --migratable >B.xml)
> - change whatever you need in B.xml
> - start migration with --xml A.xml
> 
> Jirka
> 
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Ok, I see. Thank you for clarification.

Nikolay.