libvirt users - Apr 2014 - Re: Passing non-standard Options through Libvirt to QEMU

Hello, I have a custom QEMU which requires some non-standard command line
arguments to launch a VM. e.g., "--proc-type=secondary" option is
always
required to launch a QEMU VM.

To launch the VM through libvirt (virsh) "How do I specify these
non-standard options in XML?

OR if thats not possible ,Can you guide me at which point (code file)
libvirt converts the XML to QEMU command (so that I can insert the option
there).

Regards

-- 
Asadullah Hussain

On Mon, Mar 31, 2014 at 04:33:40PM +0500, Asadullah Hussain
wrote:
> Hello, I have a custom QEMU which requires some non-standard command line
> arguments to launch a VM. e.g., "--proc-type=secondary" option is
always
> required to launch a QEMU VM.
> 
> To launch the VM through libvirt (virsh) "How do I specify these
> non-standard options in XML?
See this page

  http://libvirt.org/drvqemu.html#qemucommand


Regards,
Daniel
-- 
|: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org              -o-             http://virt-manager.org :|
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There are a couple of problems with passthrough qemu:

1. virsh version/capabilities command executes "qemu -help"  but this
gives
an error in my case because my customized qemu has to receive mandatory
non-standard parameters "qemu -c -n -- -help".

2. Similarly when passing arguments as passthrough in a VMs XML. How can I
make sure that these non-standard arguments are passed first i.e., My qemu
command for a VM should be "qemu -c -n -- <Rest of the standard
parameters>"


On 31 March 2014 16:45, Daniel P. Berrange <berrange@redhat.com> wrote:
> On Mon, Mar 31, 2014 at 04:33:40PM +0500, Asadullah Hussain wrote:
> > Hello, I have a custom QEMU which requires some non-standard command
line
> > arguments to launch a VM. e.g., "--proc-type=secondary"
option is always
> > required to launch a QEMU VM.
> >
> > To launch the VM through libvirt (virsh) "How do I specify these
> > non-standard options in XML?
>
> See this page
>
>   http://libvirt.org/drvqemu.html#qemucommand
>
>
> Regards,
> Daniel
> --
> |: http://berrange.com      -o-   
http://www.flickr.com/photos/dberrange/:|
> |: http://libvirt.org              -o-            
http://virt-manager.org:|
> |: http://autobuild.org       -o-        
http://search.cpan.org/~danberr/:|
> |: http://entangle-photo.org       -o-      
http://live.gnome.org/gtk-vnc:|
>


-- 
Asadullah Hussain