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Re: [libvirt] [PATCH v2] Disk- and Controller Hotplug



On Mon, Nov 23, 2009 at 02:15:06PM +0100, Wolfgang Mauerer wrote:
> Hi,
> 
> Daniel P. Berrange wrote:
> > On Tue, Nov 17, 2009 at 12:53:31AM +0100, wolfgang mauerer siemens com wrote:
> >> Hi,
> >>
> >> this is the second revision of a patch series to improve disk
> >> hotadd support for libvirt. It focuses on the qemu backend, but
> >> is naturally designed to be compatible with other backends as
> >> well. The objective is two-fold:
> >>
> >> 1.) Split off controller from disk handling. This is done by
> >>     introducing a new domain element <controller> that is used to
> >>     describe disk controllers. Support for hotplugging such
> >>     controllers is added.  Support to reference controllers by
> >>     name is also included.
> >> 2.) <disk>s can now be associated with a specific controller;
> >>     this is done by means of a <controller> subelemnt for disks.
> >>
> >> This patch addresses the questions that were raised during the
> >> review of the initial submission, massages the code by fixing
> >> some whitespace issues, gets static controller configurations to
> >> work, and adds documentation. Notice that in contrast to the
> >> first submission I did not include the patch that adds support
> >> for disk- and controller hot_remove_. Since the qemu codebase is
> >> still in bit of a flux wrt.  the necessary patches required for
> >> this functionality, it will reappear some time later as a
> >> separate submission.
> > 
> > What libvirt version / GIT changeset  did you create these patches
> > against ?  The current libvirt QEMU driver code in GIT is quite
> > different, so the patches here don't apply for me as is.
> 
> sorry for the late reply, I could not access my eMail during
> the last couple of days. Patches are on top of
> 790f0b3057787bb64, I did not realise that this one was only
> in the middle of qemu refactoring, not at the end :-(
> 
> Do you plan any more refactorings to the qemu base in the near
> future, and if yes, are these already available somewhere? I'd
> like to avoid another useless rebase...

No, the monitor code for the QEMU driver is stable now. I'll only be adding
extra functionality, not changing existing stuff, so it should be good to
rebase against now.


Daniel
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