Comment 5 for bug 1800649

The patch attached here contains the necessary to build QEMU with support to nvlink2 passthrough:

0001-qdev-Use-string-for-QOM-string-properties.patch
0002-ppc-spapr-Receive-and-store-device-tree-blob-from-SL.patch
0003-DBG-store-fdt.patch
0004-vfio-spapr-Fix-indirect-levels-calculation.patch
0005-headers-update.patch
0006-pci-Move-NVIDIA-vendor-id-to-the-rest-of-ids.patch
0007-RFC-vfio-nvidia-v100-Disable-VBIOS-update.patch
0008-spapr-iommu-Always-advertise-the-maximum-possible-DM.patch
0009-FIXME-vfio-Do-not-replay-IOMMU-mappings.patch
0010-vfio-Make-vfio_get_region_info_cap-public.patch
0011-vfio-spapr-Try-allocating-less-levels-if-failed-with.patch
0012-spapr-Add-NVLink2-memory-to-PHB-placement.patch
0013-spapr-Create-ibm-gpu-and-ibm-npu-cross-links-in-the-.patch
0014-spapr-vfio-Map-GPU-RAM-and-advertise-to-the-guest.patch
0015-debug-Disables-KVM-TCE-acceleration-and-direct-ATSD-.patch

https://github.com/aik/qemu/tree/nv2