Xen Watchdog support

modulename: xen_wdt.ko

configname: CONFIG_XEN_WDT

Linux Kernel Configuration
└─>Device Drivers
└─>Watchdog Timer Support
└─>Xen Watchdog support
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
Say Y here to support the hypervisor watchdog capability provided
by Xen 4.0 and newer. The watchdog timeout period is normally one
minute but can be changed with a boot-time parameter.

source code:
drivers/watchdog/xen_wdt.c