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This is the comment you were replying to, attached to the weblog Magic SysRq to xen's dom0 on a serial console


Re: Magic SysRq to xen's dom0 on a serial console
Posted by Anonymous (59.162.xx.xx) on Thu 13 Dec 2007 at 23:37
Originally when I was hunting for this I was looking at the linux serial driver code. Predictably was having no luck there. After reading your question, I realised that I needed to look at the linux xen console code. And, that's where it was hiding.

The relevant code is in drivers/xen/console.c (line 338). You can see it here:
http://xenbits.xensource.com/linux-2.6.18-xen.hg?file/52f308b17bae/drivers/xen/console/console.c

Ankur

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