[Patch V6 14/16] xen: move p2m list if conflicting with e820 map

Check whether the hypervisor supplied p2m list is placed at a location which is conflicting with the target E820 map. If this is the case relocate it to a new area unused up to now and compliant to the E820 map. As the p2m list might by huge (up to several GB) and is required to be mapped

[Patch V6 14/16] xen: move p2m list if conflicting with e820 map

Check whether the hypervisor supplied p2m list is placed at a location which is conflicting with the target E820 map. If this is the case relocate it to a new area unused up to now and compliant to the E820 map. As the p2m list might by huge (up to several GB) and is required to be mapped