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Re: [libvirt-users] xl extra parameters equivalent for libvirt



On 05/18/2015 01:02 PM, Jim Fehlig wrote:
> On 05/18/2015 11:35 AM, Emma Anderson wrote:
>> hi,
>>
>> I use xl toolstack to manage vms on a Xen machine, and also pass some
>> custom parameters when creating a vm, for example:
>>
>> xl create vm.cfg ' param="xyz" '
> 
> Documentation on create subcommand in the xl man page describes the
> 'key=value' options as
> 
> key=value
> It is possible to pass key=value pairs on the command line to provide
> options as if
> they were written in the configuration file; these override whatever is
> in the
> configfile.
> 
>>
>> I am moving to libvirt for vm management. How I can pass those extra
>> parameters using libvirt?
> 
> I'm not aware of similar functionality in libvirt.  You would need to
> customize the domXML before feeding it to 'virsh create'.

Qemu domains have that ability, via an XML namespace that adds
<qemu:commandline>:
http://libvirt.org/drvqemu.html#qemucommand

but no one has yet implemented that for Xen domains.  If you want to add
it, the src/qemu code would be the obvious starting point to copy from.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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