[libvirt] [PATCH 20/34] Assign device aliases for all devices at startup

Daniel P. Berrange berrange at redhat.com
Fri Jan 15 16:45:59 UTC 2010


On Fri, Jan 15, 2010 at 05:42:31PM +0100, Daniel Veillard wrote:
> On Fri, Jan 08, 2010 at 05:23:16PM +0000, Daniel P. Berrange wrote:
> > When starting a guest, give every device a unique alias. This will
> > be used for the 'id' parameter in -device args in later patches.
> > It can also be used to uniquely identify devices in the monitor
> > 
> > For old QEMU without -device, assign disk names based on QEMU's
> > historical naming scheme.
> > 
> > * src/qemu/qemu_conf.c: Assign unique device aliases
> > * src/qemu/qemu_driver.c: Remove obsolete qemudDiskDeviceName
> >   and use the device alias in eject & blockstats commands
> > ---
> >  src/qemu/qemu_conf.c   |  173 ++++++++++++++++++++++++++++++++++++++++++++++++
> >  src/qemu/qemu_driver.c |  104 ++++++-----------------------
> >  2 files changed, 195 insertions(+), 82 deletions(-)
> > 
> 
> How would the user see the alias in practice ? They won't be
> dumped in the XML if I understand correctly so how to they get exposed ?

Yes, they'll appear in the XML dump. Here is a huge example:

http://www.redhat.com/archives/libvir-list/2010-January/msg00186.html

Daniel
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