How dom0 send notifications to domu with best performance

How dom0 send notifications to domu with best performance

[Mina Jafari]

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Hi,
How can dom0 send notifications to domu as some events happens(events are
not hardware related). I know it can be done using event channel or through
networking. Is there any other way? and which has the best
performance?Performance really matters for my purpose.

 Thanks

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Re: How dom0 send notifications to domu with best performance

[Steven Maresca]

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Mina,

Recommended checking out libvchan. Example code is not in tools/libvchan --
see also qubes os.

Steve
On Aug 11, 2013 1:25 AM, "Mina Jafari" <ai.minajafari@gmail.com> wrote:

> Hi,
> How can dom0 send notifications to domu as some events happens(events are
> not hardware related). I know it can be done using event channel or through
> networking. Is there any other way? and which has the best
> performance?Performance really matters for my purpose.
>
>  Thanks
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
>
>

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Re: How dom0 send notifications to domu with best performance

[Konrad Rzeszutek Wilk]

On Sun, Aug 11, 2013 at 10:12:08AM -0400, Steven Maresca wrote:
> Mina,
> 
> Recommended checking out libvchan. Example code is not in tools/libvchan --
> see also qubes os.

.. which you can use to create a memory region that is seen by both guests
and you can create a semaphore on it. It even has the tools to advertise
that one of the bytes will cause an event - so if one of the guests
writes to it - the other end is instantly notified.

> 
> Steve
> On Aug 11, 2013 1:25 AM, "Mina Jafari" <ai.minajafari@gmail.com> wrote:
> 
> > Hi,
> > How can dom0 send notifications to domu as some events happens(events are
> > not hardware related). I know it can be done using event channel or through
> > networking. Is there any other way? and which has the best
> > performance?Performance really matters for my purpose.
> >
> >  Thanks
> >
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.xen.org
> > http://lists.xen.org/xen-devel
> >
> >

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel