Xen devel - Dec 2004 - How to get a domU''s ctrl_if_evtchn number in xen0?

The ctrl_if_evtchn seems to be maintained in Xend. Is there any way to
write a code in xen0 get get the ctrl_if_evtchn of a specified xenU? We
might need it to send notification of message sent over control channel
from xen0 to xenU.

Thanks in advance for your help.

-x


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It''s always port 1 in xenU. If you want the corresponding port in
xen0, issue a xc_evtchn_bind_interdomain:
 *pport1 = 0; /* wildcard */
 *pport2 = 1;
 xc_bind_interdomain(xch, DOMID_SELF, <domU>, pport1, pport2);
 /* *pport1 now contains local port */

 -- Keir
> The ctrl_if_evtchn seems to be maintained in Xend. Is there any way to
> write a code in xen0 get get the ctrl_if_evtchn of a specified xenU? We
> might need it to send notification of message sent over control channel
> from xen0 to xenU.
> 
> Thanks in advance for your help.
> 
> -x
> 
> 
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real
users.
> Discover which products truly live up to the hype. Start reading now. 
> http://productguide.itmanagersjournal.com/
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel


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Got it! Thanks a lot! Now I know why I saw port1=0 and port2=1 in xend
python codes. ;-)

-x


On Sat, 11 Dec 2004, Keir Fraser wrote:
>
> It''s always port 1 in xenU. If you want the corresponding port in
> xen0, issue a xc_evtchn_bind_interdomain:
>  *pport1 = 0; /* wildcard */
>  *pport2 = 1;
>  xc_bind_interdomain(xch, DOMID_SELF, <domU>, pport1, pport2);
>  /* *pport1 now contains local port */
>
>  -- Keir
>
> > The ctrl_if_evtchn seems to be maintained in Xend. Is there any way to
> > write a code in xen0 get get the ctrl_if_evtchn of a specified xenU?
We
> > might need it to send notification of message sent over control
channel
> > from xen0 to xenU.
> >
> > Thanks in advance for your help.
> >
> > -x
> >
> >
> > -------------------------------------------------------
> > SF email is sponsored by - The IT Product Guide
> > Read honest & candid reviews on hundreds of IT Products from real
users.
> > Discover which products truly live up to the hype. Start reading now.
> > http://productguide.itmanagersjournal.com/
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/xen-devel
>

-------------------------------------------------------
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Read honest & candid reviews on hundreds of IT Products from real users.
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