[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 3/4] docs: Document xenstore paths for domain hotplug features
On 06/11/15 17:21, Paul Durrant wrote: > Without some indication from an HVM domain it is not possible for a > toolstack to know whether instantiation of a new vbd or vif should > result in a new PV device of the appropriate type being instantiated > in a guest. (In other words whether PV drivers are present and > functioning). > > This patch document two paths which vif and vbd frontend drivers can > use to advertise their ability to respond to new vif or vbd > instantiations. > > Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx> > Cc: Ian Campbell <ian.campbell@xxxxxxxxxx> > Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> > Cc: Jan Beulich <jbeulich@xxxxxxxx> > Cc: Keir Fraser <keir@xxxxxxx> > Cc: Tim Deegan <tim@xxxxxxx> > --- > docs/misc/xenstore-paths.markdown | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/docs/misc/xenstore-paths.markdown > b/docs/misc/xenstore-paths.markdown > index 7701632..9e98d6f 100644 > --- a/docs/misc/xenstore-paths.markdown > +++ b/docs/misc/xenstore-paths.markdown > @@ -387,6 +387,18 @@ A domain writable path. Available for arbitrary domain > use. > A domain may write version information for PV driver $NAME using > this path. > > +#### ~/feature/hotplug/vif = ("0"|"1") [w,HVM] > + > +An HVM domain can indicate to a toolstack that it is capable > +of responding to instantiation of a new vif by bringing online a > +new PV network device without the need for a reboot. > + > +#### ~/feature/hotplug/vbd = ("0"|"1") [w,HVM] > + > +An HVM domain can indicate to a toolstack that it is capable > +of responding to instantiation of a new vbd by bringing online a > +new PV block device without the need for a reboot. These flags are not inherently restricted to HVM guests. Therefore, I would avoid specifying them as such. (It is quite possible for a PV guest not to be able to hotplug a vbd for example.) ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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