Anaconda installer which delives xen 4.4.2 + centos 7 + bridge networking
clone this repo
git clone https://github.com/gautamMalu/XenInBox
Make an update img
scripts/makeupdates -t c7-working
Use the generated updates.img during installation with inst.updates option in anaconda. https://rhinstaller.github.io/anaconda/boot-options.html#inst-updates
press Esc at boot selection screen during installation http://goo.gl/57GAMD you will be redirected to boot: prompt
boot: linux inst.updates=<path to updates.img>
Or you can use this wrapper repo https://github.com/gautamMalu/centos-xen