Make repo fully path-portable and add reproducible installer

- install.sh: one-command fresh-Ubuntu reproduction (deps, NVIDIA clone
  + patch, GSP firmware fetch from linux-firmware.git with objcopy
  .fwimage extraction + MD5 verify, ordered build, host config, load,
  mdev creation). Wrapper-neutral: works with libvirt/raw QEMU.
- patches/nvidia: regenerated path-independent patch (KBUILD_EXTRA_SYMBOLS
  resolved via $(src)/$(CURDIR) relative to the NVIDIA tree).
- scripts/stack_manager.sh and helper scripts auto-detect repo root
  (OPEN_IOV_ROOT override); no hardcoded developer paths anywhere.
- firmware analysis scripts use script-relative paths (also fixes stale
  firmware/570-GSP references); docs/wiki updated to $OPEN_IOV_ROOT.
- .github/workflows/ci.yml updated for standalone repo layout; firmware
  fetched from linux-firmware in CI.
- Untrack remaining kbuild artifacts (Module.symvers, modules.order,
  *.o.d); gitignore them.
- STATE.md: live project state, limitations, fixed/open bugs.
- README.md: rewritten for clone-and-run reproducibility.

1 files changed, 45 insertions, 0 deletions

diff --git a/patches/nvidia/README.md b/patches/nvidia/README.md
new file mode 100644
index 0000000..9c74f75
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+++ b/patches/nvidia/README.md
@@ -0,0 +1,45 @@
+# 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.