On Mon, May 14, 2012 at 03:55:50PM -0600, Eric Blake wrote:
> On 05/14/2012 04:19 AM, Daniel P. Berrange wrote:
> > From: "Daniel P. Berrange" <berra...@redhat.com>
> > 
> > Currently each USB2 companion controller gets put on a separate
> > PCI slot. Not only is this wasteful of PCI slots, but it is not
> > in compliance with the spec for USB2 controllers. The master
> > echi1 and all companion controllers should be in the same slot,
> > with echi1 in function 7, and uhci1-3 in functions 0-2 respectively.
> > 
> > * src/qemu/qemu_command.c: Special case handling of USB2 controllers
> >   to apply correct pci slot assignment
> > * tests/qemuxml2argvdata/qemuxml2argv-usb-ich9-ehci-addr.args,
> >   tests/qemuxml2argvdata/qemuxml2argv-usb-ich9-ehci-addr.xml: Expand
> >   test to cover automatic slot assignment
> > ---
> >  src/qemu/qemu_command.c                            |  107 
> > ++++++++++++++++----
> >  .../qemuxml2argv-usb-ich9-ehci-addr.args           |   15 ++-
> >  .../qemuxml2argv-usb-ich9-ehci-addr.xml            |   37 ++++++-
> >  3 files changed, 138 insertions(+), 21 deletions(-)
> > 
> > +++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-ich9-ehci-addr.xml
> > @@ -10,8 +10,43 @@
> >    </os>
> >    <devices>
> >      <emulator>/usr/bin/qemu</emulator>
> > +    <!-- Intentionally mixed up ordering to check we assign
> > +         addresses to the correct matching companions -->
> >      <controller type='usb' index='0' model='ich9-ehci1'>
> > -      <address type='pci' domain='0' bus='0' slot='4' function='7'/>
> > +    </controller>
> 
> Can we also add a matching file in qemuxml2xmloutdata/ to ensure that
> qemuxml2xmltest converts the mixed up input into consistent output?

I added a test case and it showed my USB code is correct, but it found
a pre-existing flaw in other area causing us to drop info when saving
the XML !

https://www.redhat.com/archives/libvir-list/2012-May/msg00811.html

Daniel
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