Re: [Xen-devel] Where's the entry code of backup host in Remus?

[Shriram Rajagopalan <rshriram@xxxxxxxxx>]

Look for the entry point into the live migration code, on the receiver host.

Start with tools/python/xen/xend/XendCheckpoint.py
Âdef restore(xd, fd, dominfo = None, paused = False, relocating = False)
 --forks off xc_restore and waits for it to complete.

 ------xc_restore calls xc_domain_restore


hope that helps.

cheers
shriram

On Thu, Feb 16, 2012 at 3:13 AM, ææå <Chunqi Li> <yzt356@xxxxxxxxx> wrote:

Hi all,

I'm reading Remus part of Xen 4.x code and now I can find the entry code of Primary host, which is located in tools/remus directory. But I cannot find the entry code of backup host. Which codes will the backup host execute when the primary code send header of a VM? I can only find some codes are executed in tools/libxc/xc_domain_restore.c, which restores the backup VM as soon as the Primary VM stops. When the backup hostÂsynchronizing the state of primary VM (including machine state, memory state and disk state), which part of code will be execute?

Thanks.

--
Regards, Chunqi Li
Department of Computer Science
School of EECS
Peking University
Beijing, China

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