Open-IOV vGPU-IO: host-side GSP emulation for unmodified NVIDIA guest drivers https://git.vgpu.io/open-iov.git/atom?h=archive%2Fpre-squash 2026-09-21T14:40:43+00:00 2026-09-21T14:40:43+00:00 Arthur Hanson Rasmusson arthur@vgpu.io 2026-09-21T14:40:43+00:00 urn:sha1:0ca41da65d675b624fb6389da1f488a24ea416e1 Restructure for clean mirroring to git.vgpu.io/open-iov.git: - Untrack GSP firmware blobs and decompiled output (firmware/**/*.bin, firmware/**/decompiled/) - large, license-restricted NVIDIA binaries. Analysis scripts, docs, and address maps remain tracked. - Untrack nvidia-open-gpu-kernel-modules submodule; our delta against upstream tag 610.57.04 is now tracked as a patch series in patches/nvidia/ and applied by install.sh after cloning. - Untrack kernel build artifacts (*.o, *.ko, Module.symvers, ...). - Untrack Ghidra project databases (*.rep/, *.gpr) - scripts remain. - Untrack VM images (*.iso, *.img, *.qcow2) and compiled helper binaries. - Drop git-lfs (.gitattributes) - no large objects remain in git. - Local QEMU-wrapper layers (scripts/vgpu_vm.py, qemu_control.py, qemu_harness.sh) are gitignored: the repo is hypervisor-management neutral (libvirt, raw QEMU all work). All files remain on disk; only git tracking changes. No source code modified. 2026-09-13T22:36:21+00:00 Arthur Hanson Rasmusson arthur@vgpu.io 2026-09-13T22:36:21+00:00 urn:sha1:00e54c13c7c9030c4d5f7151467f2d85a3730e29 - 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