[Libvir] [PATCH] Check the version of Xen in xenDaemonAttachDevice()
Daniel Veillard
veillard at redhat.com
Thu Aug 16 15:39:44 UTC 2007
On Thu, Aug 16, 2007 at 02:56:07PM +0100, Daniel P. Berrange wrote:
> On Thu, Aug 16, 2007 at 09:27:04AM -0400, Daniel Veillard wrote:
> > On Thu, Aug 16, 2007 at 05:41:47PM +0900, Masayuki Sunou wrote:
> > > Hi
> > >
> > > When virsh attach-disk/attach-interface is executed in < Xen 3.0.4,
> > > the OS type of domain is NULL in xenDaemonAttachDevice().
> > > As a result, the command becomes segmentation fault.
> > >
> > > This patch fixes it by checking the version of Xen in xenDaemonAttachDevice().
> > >
> > > Signed-off-by: Masayuki Sunou <fj1826dm at aa.jp.fujitsu.com>
> > [...]
> > >
> > > + if (domain->id < 0 && priv->xendConfigVersion < 3)
> > > + return(-1);
> > > +
> > > str = virDomainGetOSType(domain);
> > > if (strcmp(str, "linux"))
> > > hvm = 1;
> >
> > I do not understand the patch. Why is that dependant on domain->id < 0 ?
> > Can you explain the logic there ?
>
> That just ensures that this command fails in a sensible way with inactive
> guests when run on older XenD without the inactive domain management APIs.
Oh right, a domain->inactive flag or some such would be so much more
readable. Applied and commited then !
Daniel
--
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Daniel Veillard | virtualization library http://libvirt.org/
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