The series builds the PCI/MSI domain stack based on initial IORT driver
which is added in first place. As a reference please see IORT spec:
http://infocenter.arm.com/help/topic/com.arm.doc.den0049b/DEN0049B_IO_Remapping_Table.pdf
Tested on Cavium ThunderX server. The patches can be found here:
https://github.com/semihalf-nowicki-tomasz/linux.git (its-acpi-v7)