From 2302fc09080bad51c73f293294e19fd4db464eb0 Mon Sep 17 00:00:00 2001 From: Open-IOV Date: Wed, 23 Sep 2026 05:44:08 -0400 Subject: Open-IOV: initial public release Open-IOV virtualizes NVIDIA GPUs so that unmodified guest drivers run with real GPU functionality - CUDA first, 3D and video to follow - on unmodified hosts, without a proprietary vGPU license and without patching any driver, firmware or hypervisor. Core principle: emulate the interface, pass through the work. kernel/ open-iov-vfio.ko - host VFIO mdev driver: virtual GPU device (PCI config space, BAR shadows, MSI-X), GSP boot emulation, GSP-RM message-queue/RPC emulation, memory model (GPU-VA to guest-PA discovery) and the semaphore-completion service that advances guest UVM progress. userspace/ libiov.so management API and examples. tools/ guest diagnostics, firmware analysis wrappers, RM probes. scripts/ stack manager, VM harness, build/load/test automation. config/ hardware/version profiles (the portability surface). docs/ documentation tree - start at docs/README.md. wiki/ long-form firmware and protocol deep dives. Status: initialization works end to end for a stock 570.144 Linux guest on Turing (TU104): driver probe, nvidia-smi, the full GSP-RM control battery, object creation and the early CUDA/UVM start-up path. GPU work forwarding - the step that makes CUDA kernels execute on real hardware - is the active work item; see docs/04-implementation/01-known-knowns-and-unknowns.md. License: BSD-3-Clause for the project; GPL-2.0 for kernel modules that link GPL-only kernel interfaces. See LICENSE and docs/09-reference/legal-and-licensing.md. --- docs/refactored-implementation-to-do.md | 509 ++++++++++++++++++++++++++++++++ 1 file changed, 509 insertions(+) create mode 100644 docs/refactored-implementation-to-do.md (limited to 'docs/refactored-implementation-to-do.md') diff --git a/docs/refactored-implementation-to-do.md b/docs/refactored-implementation-to-do.md new file mode 100644 index 0000000..f7e0097 --- /dev/null +++ b/docs/refactored-implementation-to-do.md @@ -0,0 +1,509 @@ +# Open-IOV vGPU-IO Refactored Implementation TODO List + +## Overview +This document tracks the granular implementation steps to refactor Open-IOV from guest-side emulation to **host-side GSP emulation**, enabling unmodified guest NVIDIA drivers to run with full functionality. + +**Restore Point**: Git commit `f9ed5d8` - complete current stack before refactoring +**Target**: Host-only GSP emulation in `open-iov-vfio.ko`, guest runs pure unmodified `nvidia.ko` + +--- + +## Phase 0: Repository & Infrastructure Setup + +### 0.1 Git Branching +- [ ] `git checkout -b refactor/host-gsp-emulation` from `f9ed5d8` +- [ ] Create `docs/old/` with previous ARCHITECTURE.md (DONE) +- [ ] Create `docs/refactored-architecture.md` (DONE) +- [ ] Create this TODO document + +### 0.2 Build System Verification +- [ ] Verify current build works: `make clean && make` in open-iov root +- [ ] Verify all 3 kernel modules build: `nvidia.ko`, `open-iov-vfio.ko`, `gsp-vgpu.ko` +- [ ] Verify userspace builds: `libiov.so`, `example_vgpu` +- [ ] Document current build commands for regression testing + +### 0.3 Test Infrastructure +- [x] Create `scripts/test_gsp_emu.sh` - automated GSP emulation unit tests +- [x] Create `scripts/test_guest_driver.sh` - guest driver validation suite +- [x] Create `scripts/test_cuda_workloads.sh` - CUDA workload validation +- [x] Create `scripts/test_graphics_workloads.sh` - graphics validation +- [x] Create `scripts/test_windows_guest.sh` - Windows guest validation +- [x] Create `scripts/test_vgpu_stack.sh` - comprehensive test runner +- [ ] Set up CI pipeline for incremental testing + +--- + +## Phase 1: Host Kernel - GSP Emulation Engine (Core) + +### 1.1 New File: `kernel/gsp_emulation.h` +- [x] Define `struct gsp_emu_context` with: + - [x] `struct nv_vgpu_device *vgpu` + - [x] `struct task_struct *thread` + - [x] `void __iomem *bar0_vaddr`, `*doorbell_reg`, `*shared_mem` + - [x] `struct gsp_client *rpc_client` + - [x] `spinlock_t lock` + - [x] `bool running` + - [x] Statistics: `u64 processed_rpcs`, `failed_rpcs`, `total_latency_ns` +- [x] Function prototypes: + - [x] `int gsp_emu_init(struct nv_vgpu_device *vgpu)` + - [x] `void gsp_emu_cleanup(struct nv_vgpu_device *vgpu)` + - [x] `int gsp_emu_process_rpc(struct gsp_emu_context *ctx)` + - [x] `void gsp_emu_inject_completion_interrupt(struct gsp_emu_context *ctx, u32 seq_id)` + +### 1.2 New File: `kernel/gsp_emulation.c` +- [x] Implement `gsp_emu_thread_fn()` - per-mdev polling thread + - [x] Read doorbell at `bar0_vaddr + 0x110C00` + - [x] ACK doorbell immediately (write 0) + - [x] Call `gsp_emu_process_rpc()` + - [x] Adaptive polling: busy-wait first 100μs, then `usleep_range(50, 100)` + - [x] Handle `kthread_should_stop()` for clean shutdown +- [x] Implement `gsp_emu_init()` + - [x] Allocate `gsp_emu_context` + - [x] Map BAR0, locate doorbell reg + shared mem offset (0x1000) + - [x] Allocate shared memory (4KB, page-aligned, WC mapping) + - [x] Map shared memory into guest BAR0 at 0x1000 + - [x] Initialize `gsp_client` via `gsp_client_init()` (reuse existing) + - [x] Start kthread `gsp_emu_thread_fn` +- [x] Implement `gsp_emu_cleanup()` + - [x] Stop kthread + - [x] Free shared memory + - [x] Call `gsp_client_fini()` + - [x] Free context +- [x] Implement `gsp_emu_process_rpc()` - dispatch all 12 RPC types + - [x] Copy request from shared memory (offset 0x0000) + - [x] Validate seq_id != 0 + - [x] Switch on `req.type` → call appropriate `gsp_rpc_*` function + - [x] Write response to shared memory (offset 0x0080) + - [x] Call `gsp_emu_inject_completion_interrupt()` +- [x] Implement `gsp_emu_inject_completion_interrupt()` + - [x] Write to MSI-X PBA at `bar0_vaddr + 0x3000` (vector 0) + - [x] Signal eventfd: `eventfd_signal(vgpu->msix_trigger[0])` + +### 1.3 Modify `kernel/main.c` +- [x] Add `struct gsp_emu_context *gsp_emu` to `struct nv_vgpu_device` (reused `gsp_comm_ctx`) +- [x] In `nv_vgpu_device_init_work()`: call `gsp_emu_init(vgpu)` after `nv_vgpu_gsp_init()` +- [x] In `nv_vgpu_device_cleanup_work()`: call `gsp_emu_cleanup(vgpu)` before `nv_vgpu_gsp_cleanup()` +- [x] Include `gsp_emulation.h` + +### 1.4 Modify `kernel/Makefile` +- [x] Add `gsp_emulation.o` to `open-iov-vfio-y` or module objects +- [x] Verify build: `make clean && make` + +### 1.5 Unit Tests for GSP Emulation (kernel) +- [x] Create `kernel/tests/gsp_emulation_test.c` +- [x] Create `kernel/tests/Makefile` +- [x] Test ALLOC/FREE round-trip +- [x] Test MAP/UNMAP with various sizes/alignments +- [x] Test PIN/UNPIN returns valid DMA addresses +- [x] Test SCHEDULE/YIELD completes +- [x] Test BAR_TRAP read/write emulation +- [x] Test NOTIFY register/unregister +- [x] Test MIGRATE 4-phase state machine +- [x] Test concurrent RPCs from multiple threads +- [x] Test error handling (invalid seq_id, bad payload) +- [x] Add to `kernel/tests/Makefile` + +--- + +## Phase 2: PCI Config Space & BAR Enhancements + +### 2.1 Enhance PCI Config Space (`kernel/main.c`) +- [x] Verify MSI-X capability at 0x70 points to Table@BAR0+0x2000, PBA@BAR0+0x3000 +- [x] Ensure `VFIO_PCI_CONFIG_REGION_INDEX` returns full 256B config space +- [x] Add config space write handlers for: + - [x] Command register (0x04): Memory/IO/BusMaster enable + - [x] MSI-X Message Control (0x72): Enable/disable, table size + - [x] MSI-X Table Offset (0x74-0x77): Verify BAR0+0x2000 + - [x] MSI-X PBA Offset (0x78-0x7B): Verify BAR0+0x3000 + +### 2.2 BAR Region VFIO Mapping (`kernel/bar_emulation.c`) +- [x] Implement `VFIO_PCI_BAR0_REGION_INDEX` → 16MB emulated config space +- [x] Implement `VFIO_PCI_BAR1_REGION_INDEX` → 256MB VRAM (backed by host allocation) +- [x] Implement `VFIO_PCI_BAR2_REGION_INDEX` → 32MB reserved +- [x] Implement `VFIO_PCI_BAR3_REGION_INDEX` → 32MB reserved +- [x] Implement `VFIO_PCI_MSIX_REGION_INDEX` → MSI-X Table (0x2000) + PBA (0x3000) +- [x] Ensure BAR0 mmap includes doorbell @ 0x110C00 and shared mem @ 0x1000 + +### 2.3 MSI-X Table/PBA Emulation +- [x] Allocate MSI-X table (32 entries × 16 bytes = 512 bytes) in BAR0 at 0x2000 +- [x] Allocate PBA (32 bits = 4 bytes, aligned to 64 bytes) in BAR0 at 0x3000 +- [x] Guest writes to MSI-X table entries → host stores for interrupt injection +- [x] Guest reads PBA → host returns pending bits + +--- + +## Phase 3: GSP RPC Handler Completion + +### 3.1 Verify All 12 RPC Handlers in `gsp_rpc_client.c` +- [x] ALLOC (0x01): VRAM allocation via host nvidia.ko +- [x] FREE (0x02): Free allocation +- [x] MAP (0x03): Map to GPU VA +- [x] UNMAP (0x04): Unmap GPU VA +- [x] PIN (0x05): Pin for DMA, return DMA address +- [x] UNPIN (0x06): Unpin pages +- [x] SCHEDULE (0x07): Submit work to local workqueue +- [x] YIELD (0x08): No-op success +- [x] NOTIFY (0x09): Async notification registration +- [x] BAR_TRAP (0x0A): Shadow register read/write +- [x] MIGRATE (0x0B): 4-phase protocol +- [x] DEBUG (0xFF): Firmware introspection + +### 3.2 Enhance Handler Implementations +- [x] ALLOC: Use host page allocation + DMA mapping +- [x] MAP: GPU VA mapping management +- [x] PIN: Return DMA address from mapping +- [x] BAR_TRAP: Use bar_emulation.c shadow memory +- [x] MIGRATE: Use migration.c 4-phase state machine +- [x] NOTIFY: Use gsp_rpc_notify_register() + eventfd for guest delivery + +### 3.3 Add RPC Validation & Error Handling +- [x] Sequence ID tracking (detect duplicates, gaps) +- [x] Payload size validation per RPC type +- [x] Timeout handling (guest watchdog) +- [x] Proper error codes in response.status + +--- + +## Phase 4: Portable Architecture Implementation + +### 4.1 Firmware Analyzer (`kernel/firmware_analyzer.c`) +- [x] Compute firmware CRC32 and SHA256 signatures +- [x] Pattern matching for RPC dispatcher discovery +- [x] Pattern matching for jump table discovery +- [x] Pattern matching for ALLOC handler discovery +- [x] Known firmware signature database +- [x] Auto-discovery fallback for unknown firmware +- [x] `fw_analyzer_analyze()` - analyze firmware blob +- [x] `fw_analyzer_load_and_analyze()` - load and analyze from filesystem +- [x] `fw_analyzer_print_result()` - debug output + +### 4.2 Dynamic RPC Dispatcher (`kernel/dynamic_rpc_dispatcher.c`) +- [x] Version-specific interface registry (550, 560, 570, 580) +- [x] Native firmware handler function pointers +- [x] Emulation fallback interface +- [x] Automatic interface selection based on firmware analysis +- [x] Per-RPC-type emulation toggle +- [x] Dispatcher API for all 12 RPC types +- [x] `dynamic_dispatcher_init()` - initialize with firmware path +- [x] `dynamic_dispatcher_get_interface()` - get current interface +- [x] `dynamic_dispatcher_use_emulation()` - check if emulation used for type + +### 4.3 Hardware Architecture Layer (`kernel/architecture/`) +- [x] `architecture.h` - hardware abstraction API +- [x] `architecture.c` - architecture implementations +- [x] Turing architecture (TU102/TU104) config +- [x] Ampere architecture (GA100/GA102/GA104) config +- [x] Blackwell architecture (GB100/GB202) config +- [x] Architecture lookup by name and PCI ID +- [x] BAR configuration queries +- [x] Doorbell/shared memory offset queries +- [x] MSI-X vector count queries +- [x] Feature support queries (MIG, SR-IOV) + +### 4.4 Driver Version Adaptation Layer (`kernel/version/`) +- [x] `version.h` - version adaptation API +- [x] `version.c` - version implementations +- [x] Version 550 interface +- [x] Version 560 interface +- [x] Version 570 interface +- [x] Version 580 interface +- [x] Feature detection per version +- [x] Interface lookup by version string + +### 4.5 Declarative Configuration Files +- [x] `config/hardware/turing.yaml` - Turing hardware config +- [x] `config/hardware/ampere.yaml` - Ampere hardware config +- [x] `config/hardware/blackwell.yaml` - Blackwell hardware config +- [x] `config/versions/550.yaml` - Driver 550 config +- [x] `config/versions/560.yaml` - Driver 560 config +- [x] `config/versions/570.yaml` - Driver 570 config +- [x] `config/versions/580.yaml` - Driver 580 config + +--- + +## Phase 5: Guest Driver Integration Testing + +### 4.1 Host Module Loading Sequence +- [ ] `sudo insmod nvidia-open-gpu-kernel-modules/kernel-open/nvidia.ko` +- [ ] `sudo insmod kernel/open-iov-vfio.ko` +- [ ] Verify mdev types appear: `ls /sys/bus/pci/devices/0000:XX:XX.X/mdev_supported_types/` +- [ ] Create mdev: `echo | sudo tee /sys/bus/pci/devices/.../mdev_supported_types/nvidia-vgpu-turing/create` + +### 4.2 QEMU Launch with mdev +- [ ] `qemu-system-x86_64 -device vfio-pci,sysfsdev=/sys/bus/mdev/devices/,display=off` +- [ ] Verify guest sees PCI device: `lspci -d 10de:` → should show 10de:1ed3 +- [ ] Verify BARs: `lspci -v -d 10de:` → BAR0=16MB, BAR1=256MB, BAR2=32MB, BAR3=32MB +- [ ] Verify MSI-X: `lspci -v -d 10de:` → MSI-X capability present + +### 4.3 Guest NVIDIA Driver Installation +- [ ] Install OpenRM 570.144 in guest: `./NVIDIA-Linux-x86_64-570.144.run --silent --dkms` +- [ ] Install firmware: Copy `bootloader`, `booter_load`, `gsp` binaries to `/lib/firmware/nvidia/tu102/gsp/` +- [ ] Load driver: `sudo modprobe nvidia` +- [ ] Verify: `nvidia-smi` shows vGPU (T4 or equivalent) +- [ ] Verify: `dmesg | grep -i nvidia` shows successful probe + +### 4.4 Basic Functionality Tests +- [ ] `nvidia-smi -q` shows all fields populated +- [ ] `nvidia-smi dmon` shows utilization counters +- [ ] `nvidia-smi mig` shows MIG not supported (expected for vGPU) +- [ ] `cat /proc/driver/nvidia/gpus/0000:00:00.0/information` shows correct info + +--- + +## Phase 5: CUDA Workload Validation + +### 5.1 CUDA SDK Tests +- [ ] Compile and run `vectorAdd` sample +- [ ] Compile and run `matrixMul` sample +- [ ] Compile and run `simpleCUBLAS` sample +- [ ] Compile and run `simpleCUFFT` sample +- [ ] Verify numerical correctness vs CPU reference + +### 5.2 cuBLAS / cuDNN Tests +- [ ] SGEMM/DGEMM various sizes (64x64 to 4096x4096) +- [ ] Batched GEMM +- [ ] cuDNN convolution forward/backward +- [ ] cuDNN RNN/LSTM +- [ ] Performance within 10% of native + +### 5.3 PyTorch / TensorFlow Integration +- [ ] PyTorch: `torch.cuda.is_available()`, tensor ops, autograd +- [ ] PyTorch: Training loop (ResNet-50, BERT-small) +- [ ] TensorFlow: `tf.config.list_physical_devices('GPU')` +- [ ] TensorFlow: Keras model training +- [ ] Mixed precision (FP16/BF16) works + +### 5.4 Multi-GPU / NCCL Tests +- [ ] Create 2+ vGPUs on same physical GPU +- [ ] NCCL all-reduce across vGPUs +- [ ] NCCL broadcast/reduce +- [ ] Multi-process CUDA (MPS) if supported + +### 5.5 CUDA Graphs & Streams +- [ ] CUDA Graph capture/replay +- [ ] Multiple streams concurrent execution +- [ ] Stream priorities +- [ ] Event synchronization + +--- + +## Phase 6: Graphics Workload Validation + +### 6.1 Vulkan Tests +- [ ] `vulkaninfo` shows GPU properties +- [ ] `vkcube` renders correctly +- [ ] `vkcubepp` (Vulkan 1.1+) renders +- [ ] Sascha Willems Vulkan samples (deferred, compute, ray tracing if supported) +- [ ] VK_KHR_swapchain, VK_KHR_dedicated_allocation work + +### 6.2 OpenGL Tests +- [ ] `glxinfo | grep -i nvidia` shows correct renderer +- [ ] `glxgears` runs at expected FPS +- [ ] `glmark2` benchmark completes +- [ ] Piglit test suite (subset) passes + +### 6.3 Video Encode/Decode +- [ ] FFmpeg + NVENC: H.264 encode 1080p60 +- [ ] FFmpeg + NVENC: HEVC encode 4K30 +- [ ] FFmpeg + NVDEC: H.264 decode 1080p60 +- [ ] FFmpeg + NVDEC: HEVC decode 4K30 +- [ ] GStreamer nvh264enc/nvh265enc elements +- [ ] GStreamer nvh264dec/nvh265dec elements + +### 6.4 Windows Guest Graphics (Separate Track) +- [ ] Windows 11 guest with NVIDIA 570.144 driver +- [ ] Device Manager: "NVIDIA T4" (or equivalent) with no error codes +- [ ] GPU-Z / CUDA-Z detect vGPU correctly +- [ ] D3D11: `D3D11CreateDevice` succeeds, render triangle +- [ ] D3D12: `D3D12CreateDevice` succeeds, render triangle +- [ ] Vulkan on Windows: `vkCreateInstance`, render +- [ ] DXGI swapchain present works +- [ ] Video encode via Media Foundation (MFT) +- [ ] Video decode via Media Foundation (MFT) + +--- + +## Phase 7: Performance Benchmarking + +### 7.1 Microbenchmarks +- [ ] GSP RPC round-trip latency (target < 10μs) +- [ ] BAR register access latency (target < 2μs) +- [ ] VRAM alloc/free latency (target < 50μs) +- [ ] VRAM map/unmap latency (target < 20μs) +- [ ] DMA pin/unpin latency (target < 30μs) +- [ ] MSI-X injection latency (target < 5μs) + +### 7.2 Macrobenchmarks +- [ ] CUDA kernel launch overhead (target < 5% vs native) +- [ ] cuBLAS SGEMM 4096x4096 (target > 90% native GFLOPS) +- [ ] cuDNN ResNet-50 training step (target > 85% native) +- [ ] Vulkan frame time (target < 2ms @ 1080p) +- [ ] NVENC 1080p60 encode latency (target < 5ms) +- [ ] NVDEC 1080p60 decode latency (target < 3ms) + +### 7.3 Stress Tests +- [ ] 24-hour CUDA compute stress (no errors, no memory leaks) +- [ ] 24-hour graphics stress (Unigine Heaven/Valley loop) +- [ ] 1000x VF create/destroy cycles +- [ ] Concurrent CUDA + graphics workloads +- [ ] Memory pressure test (allocate 90% VRAM, verify OOM handling) + +--- + +## Phase 8: Live Migration Validation + +### 8.1 Migration Protocol Tests +- [ ] QUERY phase: source reports capabilities +- [ ] PREPARE phase: destination allocates resources +- [ ] TRANSFER phase: iterative VRAM + GSP state copy +- [ ] COMMIT phase: cutover, guest resumes on destination +- [ ] CLEANUP phase: source releases resources + +### 8.2 Migration Under Load +- [ ] Migrate idle vGPU (downtime < 50ms) +- [ ] Migrate running CUDA kernel (downtime < 100ms) +- [ ] Migrate running graphics (no visual artifacts) +- [ ] Migrate with pinned DMA buffers +- [ ] Verify post-migration CUDA/graphics work correctly + +### 8.3 Migration State Verification +- [ ] GSP context (registers, PC, stack) restored +- [ ] Page tables identical +- [ ] VRAM contents identical (checksum) +- [ ] BAR register state identical +- [ ] MSI-X table/PBA state identical + +--- + +## Phase 9: Windows Guest Validation + +### 9.1 Windows Guest Setup +- [ ] Windows 10 22H2 / Windows 11 23H2 guest +- [ ] VirtIO drivers for network/storage +- [ ] QEMU guest agent +- [ ] UEFI firmware (OVMF with TPM) + +### 9.2 NVIDIA Driver Installation +- [ ] Download 570.144 Windows driver +- [ ] Install with `setup.exe -s -noreboot` (silent) +- [ ] Reboot guest +- [ ] Verify in Device Manager: "NVIDIA T4" (Code 0 = working) + +### 9.3 Windows Compute Tests +- [ ] `nvidia-smi.exe` shows vGPU +- [ ] CUDA-Z detects GPU, runs device query +- [ ] `vectorAdd.exe` (compiled in guest) executes +- [ ] PyTorch/TensorFlow in Windows (WSL2 or native) + +### 9.4 Windows Graphics Tests +- [ ] `dxdiag` shows correct GPU info +- [ ] D3D11 tutorial samples render +- [ ] D3D12 tutorial samples render +- [ ] Vulkan SDK samples run +- [ ] FurMark / 3DMark stress test + +### 9.5 Windows Video Tests +- [ ] Media Foundation H.264/HEVC encode +- [ ] Media Foundation H.264/HEVC decode +- [ ] NVENC API direct usage +- [ ] NVDEC API direct usage + +--- + +## Phase 10: Reliability & Production Hardening + +### 10.1 Error Handling & Recovery +- [ ] Guest driver crash → host cleans up mdev state +- [ ] Host kernel oops in GSP emulation → watchdog restarts thread +- [ ] Physical GPU reset → host reinitializes GSP emulation +- [ ] IOMMU fault → proper error to guest +- [ ] VRAM OOM → proper CUDA_OUT_OF_MEMORY to guest + +### 10.2 Monitoring & Observability +- [ ] Debugfs interface: `/sys/kernel/debug/open-iov-vfio/` + - [ ] Per-mdev RPC statistics + - [ ] Latency histograms + - [ ] Error counters + - [ ] GSP emulation thread CPU usage +- [ ] Prometheus metrics exporter (optional) +- [ ] Tracepoints for RPC processing + +### 10.3 Security Hardening +- [ ] Validate all guest inputs (seq_id, payload sizes, pointers) +- [ ] Isolate mdev memory (no cross-VF access) +- [ ] Rate-limit doorbell writes (prevent DoS) +- [ ] Audit VFIO ioctl permissions + +### 10.4 Documentation & Handoff +- [ ] Update `docs/refactored-architecture.md` with as-built details +- [ ] Create `docs/OPERATIONS.md` for deployment +- [ ] Create `docs/TROUBLESHOOTING.md` for common issues +- [ ] Record all firmware addresses used +- [ ] Document test results for each phase + +--- + +## Success Criteria Checklist + +### Minimum Viable Product (Phases 0-4) +- [ ] Host loads `open-iov-vfio.ko` with GSP emulation thread +- [ ] mdev creates successfully with correct PCI config space +- [ ] Guest `nvidia.ko` loads, probes vGPU successfully +- [ ] `nvidia-smi` in guest shows vGPU +- [ ] Simple CUDA kernel (`vectorAdd`) executes correctly + +### Compute Ready (Phases 5-6) +- [ ] cuBLAS/cuDNN workloads pass numerical verification +- [ ] PyTorch/TensorFlow training works +- [ ] Vulkan/OpenGL rendering works +- [ ] Video encode/decode works +- [ ] Performance > 85% native for compute, > 90% for graphics + +### Production Ready (Phases 7-10) +- [ ] 24-hour stress tests pass +- [ ] Live migration works under load +- [ ] Windows guest fully functional +- [ ] Monitoring/observability in place +- [ ] Security audit passed +- [ ] Documentation complete + +--- + +## Dependencies & Prerequisites + +| Component | Version | Source | +|-----------|---------|--------| +| Linux Kernel | 6.8+ | Host distro | +| NVIDIA OpenRM | 570.144 | `nvidia-open-gpu-kernel-modules` submodule | +| QEMU | 8.0+ | Host distro / source | +| libvfio-user | Latest | `libvfio-user` repo | +| CUDA Toolkit | 12.4+ | Guest (for compilation) | +| Vulkan SDK | 1.3+ | Guest | +| Windows 10/11 | 22H2/23H2 | Guest ISO | + +--- + +## Tracking + +| Phase | Status | Start Date | End Date | Notes | +|-------|--------|------------|----------|-------| +| 0: Setup | ✅ DONE | - | - | Git repo, docs, restore point | +| 1: GSP Emulation Engine | ✅ DONE | | | Core implementation complete | +| 2: PCI/BAR Enhancements | ✅ DONE | | | Config space, MSI-X, BAR regions | +| 3: RPC Handler Completion | ✅ DONE | | | All 12 RPC types with emulation | +| 4: Portable Architecture | ✅ DONE | | | Firmware analyzer, dispatcher, arch/version layers, configs | +| 5: Guest Driver Integration | 🔄 IN PROGRESS | | | Requires reboot to test | +| 6: CUDA Validation | ⏳ PENDING | | | | +| 7: Graphics Validation | ⏳ PENDING | | | | +| 8: Performance Benchmarks | ⏳ PENDING | | | | +| 9: Migration Validation | ⏳ PENDING | | | | +| 10: Windows Guest | ⏳ PENDING | | | | +| 11: Production Hardening | ⏳ PENDING | | | | +| 10: Production Hardening | ⏳ PENDING | | | | + +--- + +*TODO List Version: 1.0* +*Repository: $OPEN_IOV_ROOT* +*Branch: refactor/host-gsp-emulation* +*Base Commit: f9ed5d8* \ No newline at end of file -- cgit v1.2.3