<br><br><div class="gmail_quote">On Mon, Feb 20, 2012 at 7:17 PM, summerxyt <span dir="ltr"><<a href="mailto:summerxyt@gmail.com">summerxyt@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div style="MARGIN:10px">
<div>hi,</div>
<div> I'm not very sure about if I can ask questions about xen here.
I have tow questions.</div>
<div> The first one is that I'm looking for methods about
inter-domain communication for xen. I know besides network, VMs on the same
physical machine can exchange information by event channel and grant table. But
are these two ways working in kernel mode as part of drivers, or can I directly
use them just like network socket in user mode? I've tried to google
it but only got something I can't fully understand. </div>
<div> The second questions is I want to do some extra jobs (like
check tcp/ip header and change some bits) to packages in the virtual
network of xen. As all domUs' packages are passing the back driver of dom0,
I want to put this extra action to network back driver of dom0. But I'm not sure
which part of the source code has the function of receiving packages from front
driver. I think it may be function <a href="http://lxr.free-electrons.com/ident?i=xen_netbk_tx_action" target="_blank">xen_netbk_tx_action</a>.
I'll be very appreciated if someone knows the answer. Thanks!</div>
<div> </div>
<hr style="WIDTH:210px;min-height:1px" align="left" color="#b5c4df" size="1"><span class="HOEnZb"><font color="#888888">
<div><span>summerxyt</span></div></font></span></div>
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<br></blockquote></div><br><div>Check the website of xen, they might have something. One which I knew was xensocket, but I guess you would need to port it to latest xen kernel as it was not part of it. There may be other mechanisms also.</div>
<div><br></div><div>-Rohan</div>