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# NVIDIA open-gpu-kernel-modules Patches
Open-IOV does **not** vendor the NVIDIA OpenRM source tree. Instead, the
installer clones upstream at a pinned tag and applies this patch series.
## Pinned upstream
- Repository: <https://github.com/NVIDIA/open-gpu-kernel-modules.git>
- Tag: `610.57.04`
- Pristine-tree SHA256 of the delta base: tag `610.57.04`
## Applying
```bash
git clone --depth 1 --branch 610.57.04 \
https://github.com/NVIDIA/open-gpu-kernel-modules.git
cd open-gpu-kernel-modules
git apply /path/to/open-iov/patches/nvidia/*.patch
```
(`install.sh` does this automatically.)
## Regenerating the series
If you modify the NVIDIA tree, regenerate the patches with:
```bash
cd nvidia-open-gpu-kernel-modules
git format-patch 610.57.04..HEAD -o ../patches/nvidia/
```
## What the series does
`0001-Build-fixes-and-vGPU-VFIO-interface-integration.patch`:
- Adds the vGPU VFIO interface headers (`nv-vgpu-vfio-interface.h`,
`nv-vgpu-vfio-interface-nvidia.h`) that `open-iov-vfio.ko` and
`nvidia.ko` share.
- Exports the vGPU VFIO symbols from `nvidia.ko`
(`nvidia_vgpu_vfio_probe/remove`, `nvidia_vgpu_vfio_get_ops/set_ops`,
`nv_vgpu_mdev_register_parent/unregister_parent`, ...).
- Reports version `570.144` to match the GSP firmware the guest driver
stack is validated against.
- Build fixes for kernel 6.8 out-of-tree builds and the
`Module.symvers.open-iov` reference list.
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