[libvirt] [PATCH v2 1/2] conf: add xml element devices/pvpanic

[Hu Tao]

On Mon, Dec 02, 2013 at 11:13:33AM +0100, Peter Krempa wrote:
> On 12/02/13 07:11, Hu Tao wrote:
> > This patch adds a new xml element devices/pvpanic to support qemu device
> > pvpanic. It can be used to receive guest panic notification.
> > 
> > Signed-off-by: Hu Tao <hutao at cn.fujitsu.com>
> > ---
> >  docs/formatdomain.html.in | 25 +++++++++++++++++
> >  src/conf/domain_conf.c    | 68 +++++++++++++++++++++++++++++++++++++++++++++++
> >  src/conf/domain_conf.h    |  9 +++++++
> >  3 files changed, 102 insertions(+)
> 
> A few issues I see at first glance:
> 
> 1) you didn't add ABI compatibility check for the pvpanic device
> 2) XML->XML tests are missing
> 3) RNG schemas for the new element are missing
> 4) XML->qemu commandline tests are missing (in 2/2)

Thanks, I'll add the missing parts in next version.

> 
> 
> > 
> > diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
> > index 1850a2b..0a72baa 100644
> > --- a/docs/formatdomain.html.in
> > +++ b/docs/formatdomain.html.in
> > @@ -5080,6 +5080,31 @@ qemu-kvm -net nic,model=? /dev/null
> >      </dd>
> >    </dl>
> >  
> > +    <h4><a name="elementsPvpanic">pvpanic device</a></h4>
> > +    <p>
> > +      pvpanic device enables libvirt to receive panic notification from a QEMU
> > +      guest.
> > +      <span class="since">Since 1.3.0, QEMU and KVM only</span>
> 
> 1.3.0? the since tag is supposed to contain a libvirt version. 1.3.0
> will not happen that soon. 1.2.1 is what you are looking for.

OK.

> 
> > +    </p>
> > +    <p>
> > +      Example: usage of pvpanic configuration
> > +    </p>
> > +<pre>
> > +  ...
> > +  <devices>
> > +    <pvpanic ioport='0x505'/>
> > +  </devices>
> > +  ...
> > +</pre>
> > +  <dl>
> > +    <dt><code>ioport</code></dt>
> > +    <dd>
> > +      <p>
> > +        ioport used by pvpanic.
> > +      </p>
> > +    </dd>
> > +  </dl>
> > +
> >      <h3><a name="seclabel">Security label</a></h3>
> >  
> >      <p>
> > diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> > index 140eb80..1b8f66f 100644
> > --- a/src/conf/domain_conf.c
> > +++ b/src/conf/domain_conf.c
> 
> ...
> 
> > @@ -15715,6 +15768,18 @@ virDomainWatchdogDefFormat(virBufferPtr buf,
> >      return 0;
> >  }
> >  
> > +static int virDomainPvpanicDefFormat(virBufferPtr buf,
> > +                                     virDomainPvpanicDefPtr def)
> > +{
> > +    if (def->ioport > 0) {
> > +        virBufferAsprintf(buf, "    <pvpanic ioport='%#x'/>\n",
> > +                          def->ioport);
> > +    } else {
> > +        virBufferAsprintf(buf, "    <pvpanic/>\n");
> 
> Would break syntax-check. For static strings use virBufferAddLit.

OK.

> 
> > +    }
> > +
> > +    return 0;
> > +}
> >  
> >  static int
> >  virDomainRNGDefFormat(virBufferPtr buf,
> 
>