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Re: [Xen-devel] question about reboot VM
| To: | tgh <tianguanhua@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] question about reboot VM |
| From: | Ewan Mellor <ewan@xxxxxxxxxxxxx> |
| Date: | Mon, 26 Mar 2007 09:43:26 +0100 |
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| Delivery-date: | Mon, 26 Mar 2007 01:42:27 -0700 |
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On Mon, Mar 26, 2007 at 02:12:33PM +0800, tgh wrote: > hi > I try to understand the"xm reboot" for vm, but confused about the python > code > I could not find which function or code in C language is called by the > python when rebooting At the client (xm) the code is in xen/xm/shutdown.py. This just sends simple messages to Xend (the server). In Xend there is some marshalling, but eventually the call pops out in xen/xend/XendDomainInfo.py:shutdown, with the reason set to "reboot". This makes a request to the domain to shut itself down, and the shutdown the proceeds asynchronously. When the domain finally shuts down, a watch is fired which comes into XendDomainInfo.refreshShutdown, and Xend handles the cleanup and reboot from there. There is no C code explicitly about rebooting -- this is handled by Xend as a cleanup of one domain, and creation of a new one in its place. HTH, Ewan. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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