Re: [Qemu-devel] [libvirt] [qemu-devel] Default machine type setting for ppc64

[Li Zhang]

On 2013年05月22日 04:01, Anthony Liguori wrote:
> "Daniel P. Berrange" <address@hidden> writes:
>
> > On Tue, May 21, 2013 at 11:12:26AM -0600, Eric Blake wrote:
> > > I have also argued in the past that it would be useful for libvirt to
> > > support the idea of a template, where you can specify a domain XML that
> > > inherits defaults from the template.  We've already done things like
> > > this for networking, nwfilter, and even secret management (in domain
> > > XML, you declare that you are using a named network object, and that
> > > network object serves as the template instead of you having to hard-code
> > > all the elements into your domain XML), so we have a design to base it
> > > on.  But until someone adds such a feature for libvirt, then OpenStack
> > > should be passing explicit XML to libvirt, and tracking defaults at the
> > > OpenStack layer.
> > I don't think the idea of a template belongs in libvirt.
> This is fine.  But the conversation started with a statement that it's
> QEMU's job to define reasonable defaults and libvirt just exposes
> those.
>
> But in QEMU, we punt this problem by letting a user globally override
> this default.  libvirt hides this ability from the end user.
>
> So either it's libvirt's problem to solve, or you should expose the
> ability to set the global setting within QEMU.  We can't just point our
> fingers at each other and hope the problem goes away :-)

Hi Anthony,

Currently, to resolve this problem, can we set 'pseries' as default?
Because mac99 doesn't work at all on our platform.

Thanks. :)
-- Li

> Regards,
>
> Anthony Liguori
>
> > Creating basic
> > XML structure with relevant defaults pre-filled for a particular usecase
> > is something that the libvirt-designer library is aiming to take care of
> > for applications.
> >
> > 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 :|