Re: [PATCH] Fix logic for assigning PCI addresses to USB2 companion controllers

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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" <berrange@xxxxxxxxxx>
> > 
> > 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
-- 
|: 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 :|

--
libvir-list mailing list
libvir-list@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/libvir-list


[Index of Archives]     [Virt Tools]     [Libvirt Users]     [Lib OS Info]     [Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite News]     [KDE Users]     [Fedora Tools]