[libvirt] [PATCH v4 0/8]: Add arbitrary qemu command-line and monitor commands

Chris Lalancette clalance at redhat.com
Tue Jul 20 12:34:41 UTC 2010

On 07/20/10 - 11:58:40AM, Daniel P. Berrange wrote:
> On Wed, Jul 07, 2010 at 05:33:25PM -0400, Chris Lalancette wrote:
> > As we discussed previously, here is the patch series to add the ability
> > to specify arbitrary qemu command-line parameters and environment variables,
> > and also give arbitrary monitor commands to a guest.  Because these
> > extra arguments have a good shot at confusing libvirt, the use of them
> > is not supported, but left available for advanced users and developers.
> > They are also in a separate library and have a separate on-the-wire
> > protocol.
> > 
> > There is one bug left that I have not yet been able to fix.  Because of the
> > complicated way that virsh parses command-line arguments, it is not possible
> > to pass through spaces and quotes when using the qemu-monitor-command.
> > Unfortunately, the qemu monitor commands (and in particular when using QMP)
> > depend heavily on quoting and spacing, so using virsh to send through
> > command-lines is difficult.  I'll have to think about how to better resolve
> > this issue, but it should not hold up the rest of the series.
> Aside from the bug about the libvirt_public.sym file I think this series
> is ok to commit. Given that we don't have a solution for this virsh
> quoting problem though, we should leave out the virsh patch. We don't
> want to lock ourselves into current syntax of 'qemu-monitor-command'
> in case the solution to quoting problem requires changes. 

OK, that's reasonable.  I'll go back and try to bang on the virsh problem
in the next few days and see what I can come up with for a solution.

Chris Lalancette

More information about the libvir-list mailing list