This patch provides the framework needed for resource labeling. 
Subsequent patches will follow in the coming weeks that will enable 
Xen ACM to control assignment of resources (e.g., block devices and 
networking) to virtual machines based on resource labels and the 
active security policy.

Signed-off-by: Bryan D. Payne <bdpayne@us.ibm.com>
Signed-off-by: Reiner Sailer <sailer@us.ibm.com>