Attached there is the version of pygrub xfs support patch.

I've tested it against XCP, CentOS and latest Debian Unstable i386/amd64.

There is also my git patch queue against original grub code to show what
I've done.

Regards,
Marco

-- 
Marco Nenciarini - System manager @ Devise.IT
marco.nenciarini@devise.it | http://www.devise.it