[Libvir] Proposed XML format for capabilities, with examples [long]

[Richard W.M. Jones]

Richard W.M. Jones wrote:
> Example: Xen
> ------------
> 
> <capabilities>
>   <host>
>     <cpu_flags>
>       <cpu_flag> vmx </cpu_flag>
>       <cpu_flag> pae </cpu_flag>  <!-- etc -->
>     </cpu_flags>
>   </host>

After some discussion with Daniel Veillard, I've evolved this into:

<capabilities>
   <host>
     <features>
       <vmx/>
       <pae/>
       <!-- etc -->
     </features>
   </host>

(This reason for this is to be consistent with the features listed in 
<domain> descriptions).

>   <guest_architectures>
>     <guest_architecture>
>       <model> x86_64 </model>
>       <paravirt> xen </paravirt>
>       <domain_type> xen </domain_type>
>       <emulator> /usr/lib/xen/bin/qemu-dm </emulator>
>     </guest_architecture>

Also after discussion with DV:

   <guest>
     <architectures>
       <architecture>
          <!-- <model> etc. as above -->
       <architecture>
     </architectures>
   </guest>
</capabilities>

(The reason for this is to reduce the verbosity of the XML and to allow 
other guest-related non-architecture-related sections in a future version).

Rich.

-- 
Emerging Technologies, Red Hat  http://et.redhat.com/~rjones/
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