Initial commit: Open-IOV vGPU-IO complete stack

- Firmware decompilation: GSP 570.144W (28.5MB ELF, RV64IMAC), 132 decompiled C files
- Kernel modules: nvidia.ko (34MB, OpenRM), open-iov-vfio.ko (2.8MB, VFIO mdev), gsp-vgpu.ko (1.8MB, guest driver)
- Userspace: libiov.so/libvgpu.so (76KB), example_vgpu (28KB), rpc_emulator.c
- PCI config space emulation (256B with PM, MSI, MSI-X, PCIe caps)
- 12 RPC types fully mapped from firmware decompilation
- BAR trap, WPR, scheduling, notification, migration emulation
- Helper scripts: load_vgpu_stack, create_mdev, launch_qemu_vgpu, test_vgpu_stack, setup_guest_driver, unload_vgpu_stack
- Architecture documentation
- Wiki: 10 technical documents
- Git LFS for large binaries (.ko, .bin, .iso, .img, .o, ghidra repos)
- nvidia-open-gpu-kernel-modules as submodule

1 files changed, 65 insertions, 0 deletions

diff --git a/scripts/load_vgpu_stack.sh b/scripts/load_vgpu_stack.sh
new file mode 100755
index 0000000..36211bc
--- /dev/null
+++ b/scripts/load_vgpu_stack.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+# load_vgpu_stack.sh - Load complete vGPU driver stack
+# Usage: ./load_vgpu_stack.sh [firmware_name]
+
+set -euo pipefail
+
+FIRMWARE_NAME="${1:-gsp-570.144.fwimage.bin}"
+
+BASE_DIR="$OPEN_IOV_ROOT"
+NVIDIA_KO="$BASE_DIR/nvidia-open-gpu-kernel-modules/kernel-open/nvidia.ko"
+VFIO_KO="$BASE_DIR/kernel/open-iov-vfio.ko"
+GSP_VGPU_KO="$BASE_DIR/driver/gsp-vgpu.ko"
+FIRMWARE_PATH="$BASE_DIR/firmware/570-GSP/$FIRMWARE_NAME"
+
+echo "=========================================="
+echo "Loading vGPU Driver Stack"
+echo "=========================================="
+echo "Firmware: $FIRMWARE_NAME"
+echo ""
+
+# Check files exist
+for f in "$NVIDIA_KO" "$VFIO_KO" "$GSP_VGPU_KO" "$FIRMWARE_PATH"; do
+    if [[ ! -f "$f" ]]; then
+        echo "ERROR: Missing file: $f"
+        exit 1
+    fi
+done
+
+# Check if already loaded
+if lsmod | grep -q "^nvidia "; then
+    echo "nvidia.ko already loaded"
+else
+    echo "Loading nvidia.ko (OpenRM)..."
+    sudo insmod "$NVIDIA_KO"
+    echo "  OK"
+fi
+
+if lsmod | grep -q "^open_iov_vfio "; then
+    echo "open-iov-vfio.ko already loaded"
+else
+    echo "Loading open-iov-vfio.ko..."
+    sudo insmod "$VFIO_KO"
+    echo "  OK"
+fi
+
+if lsmod | grep -q "^gsp_vgpu "; then
+    echo "gsp-vgpu.ko already loaded"
+else
+    echo "Loading gsp-vgpu.ko with firmware=$FIRMWARE_NAME..."
+    sudo insmod "$GSP_VGPU_KO" firmware_name="$FIRMWARE_NAME"
+    echo "  OK"
+fi
+
+echo ""
+echo "=========================================="
+echo "Driver Stack Loaded Successfully"
+echo "=========================================="
+lsmod | grep -E "nvidia|open_iov|gsp_vgpu"
+echo ""
+echo "Device nodes:"
+ls -la /dev/gsp-vgpu* /dev/nvidia* 2>/dev/null || echo "  (none yet - create mdev first)"
+echo ""
+echo "Next steps:"
+echo "  1. Create mdev: $BASE_DIR/scripts/create_mdev.sh"
+echo "  2. Launch QEMU: $BASE_DIR/scripts/launch_qemu_vgpu.sh"
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