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For all VFIO devices, map all non-emulated MMIO regions to the vfio container to allow PCIe P2P between all VFIO devices on the virtual machine. This is required for a wide variety of advanced GPU workloads such as GPUDirect P2P (DMA between two GPUs), GPUDirect RDMA (DMA between a GPU and an IB device). Signed-off-by: Thomas Barrett <tbarrett@crusoeenergy.com>