[libvirt] [PATCH] schema: Allow multiple machines for sparc VMs

[John Ferlan]

<...snip...>
> I have not been able to try this patch, it fails with this error :
> 

There's a v2 :

http://www.redhat.com/archives/libvir-list/2015-April/msg00503.html

Although it appears that it too has a RNG issue according to what Jan
just posted.

John

> error: internal error: Unable to parse RNG /test-libvirt/share/libvirt/schemas/domain.rng: Reference osexe has no matching definition
> Internal found no define for ref osexe
> 
> However, had some concerns purely by looking at this patch. This change is very x86-centric, it does not respect other architectures.
> I think the rationale for simplifying domaincommon.rng would have been to group all types that obey this pattern string:
> 
> <param name="pattern">[a-zA-Z0-9_\.\-]+</param>
> 
> 
> However, this regex does not conform to machine types for _all_ architectures.
> As an example, see this :
> <define name="hvms390">
>     <group>
>       <optional>
>         <attribute name="arch">
>           <choice>
>             <value>s390</value>
>             <value>s390x</value>
>           </choice>
>         </attribute>
>       </optional>
>       <optional>
>         <attribute name="machine">
>           <choice>
>             <value>s390</value>
>             <value>s390-virtio</value>
>             <value>s390-ccw</value>
>             <value>s390-ccw-virtio</value>
>           </choice>
>         </attribute>
>       </optional>
>     </group>
>   </define>
> 
> The s390 arch only allows four machine names : "s390", "s390-virtio", "s390-ccw", "s390-ccw-virtio".
> With the patch you suggest, even a string such as "abcdefg" will become a legitimate machine type for s390x, which seems like an odd thing.
> Likewise, ppc64[le] architecture allows only strings such as pseries, pseries-2.1, pseries-2.2 ..
> This patch will allow any random machine name, which seems somewhat odd to me.
> 
> Regards,
>