Add awareness of PV-in-PVH guests
Add awareness of PV-in-PVH guests

We need to switch case between three domain types now, so just checking whether
a domain is an HVM domain is no longer good enough.

Use the new xenstore key to determine the domain type.

Signed-off-by: Rob Hoes <8783b3376fb07d39edffc8d7da68a6de3874a7e6@citrix.com>

robhoes/squeezed