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Re: [libvirt] Xen device section defaults miss name='qemu'





On Sat, Jul 15, 2017 at 12:27 AM, Jim Fehlig <jfehlig suse com> wrote:
On 07/11/2017 08:15 AM, Christian Ehrhardt wrote:

What happens is that before the changes this auto-added a driver section like:
    <driver name='qemu' type='raw'/>
But now it does only add
    <driver type='raw'/>
Which fails to verify like:

I think you forgot to paste the example here, but I assume it is something like

# virt-xml-validate test.xml
Relax-NG validity error : Extra element devices in interleave
test.xml:21: element devices: Relax-NG validity error : Element domain failed to validate content
test.xml fails to validate
 
Yes that was the case I've seen.

where test.xml contains disk config

    <disk type='file' device='cdrom'>
      <driver type='raw'/>
      <target dev='hdb' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>

As your example or even no <driver> at all - that in the past also got the defaults and no isn't.
 
It is not clear to me if 'name' is a required attribute of <disk>. The doc says "If the hypervisor supports multiple backend drivers, then the name attribute selects the primary backend driver name". It doesn't mention "required" or "mandatory". We'd have a schema bug if 'name' is optional. I guess it is a good question for danpb. Dan, is disk/driver/@name a required attribute?

 Prepping my patch, but surely if the fix is to just relax the relaxng to not have it required I'm good as well.

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