soc/intel/broadwell: Enable VT-d and X2APIC

We use the usual static addresses 0xfed90000/0xfed91000 for the GFX
IOMMU and the general IOMMU respectively. These addresses have to be
configured in MCHBAR registers and reserved from the OS.

Change-Id: I7afcce0da028a160174db2cf6b4b6735bcd59165
Signed-off-by: Matt DeVillier <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Youness Alaoui <>
Reviewed-by: Nico Huber <>
7 files changed