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



On 2013年05月21日 17:25, Daniel P. Berrange wrote:
On Tue, May 21, 2013 at 05:02:51PM +0800, Li Zhang wrote:
On 2013年05月21日 16:45, Peter Maydell wrote:
On 21 May 2013 09:39, Daniel P. Berrange <berrange redhat com> wrote:
Libvirt has always had support for specifying what machine type to use.
This discussion is simply about what machine type to default to, if the
user hasn't explicitly asked for one.

QEMU has the notion of a default machine for each target, and that is
what libvirt uses if the user hasn't specified a machine.  It is not
libvirt's job to override QEMU's notion of the default machine here,
Agreed; thanks for the clarification.

so if the 'mac99' machine type isn't suitable as the default either
QEMU needs to change that for the ppc target, or the user needs to
explicitly specify their desired machine type.
OK, that makes sense. So is the problem here just configuration
or is it the next layer above libvirt not being configurable?
Currently, the next layer above libvirt is not configurable.
It is dependent on this default setting. Users also expect
to start one VM successfully by default.
What is the application above libvirt you are using ? It clearly
needs to be fixed if it is to use non-x86 archs successfully.

Sorry for replying late. The applications are openstack and ovirt.

Thanks.
-- Li


Daniel


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