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.

1 files changed, 182 insertions, 0 deletions

diff --git a/tools/test/run_integration_tests.sh b/tools/test/run_integration_tests.sh
new file mode 100755
index 0000000..06e309c
--- /dev/null
+++ b/tools/test/run_integration_tests.sh
@@ -0,0 +1,182 @@
+#!/bin/bash
+# GSP vGPU-IO Integration Test Runner
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+KERNEL_TEST_DIR="$PROJECT_ROOT/kernel/tests"
+DRIVER_DIR="$PROJECT_ROOT/driver"
+
+# Colors
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+log_info() { echo -e "${GREEN}[INFO]${NC} $1"; }
+log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+
+# Check if running as root
+check_root() {
+    if [[ $EUID -ne 0 ]]; then
+        log_error "This script must be run as root"
+        exit 1
+    fi
+}
+
+# Build kernel test module
+build_test_module() {
+    log_info "Building kernel test module..."
+    cd "$KERNEL_TEST_DIR"
+    make clean
+    make
+    if [[ $? -ne 0 ]]; then
+        log_error "Failed to build test module"
+        exit 1
+    fi
+    log_info "Test module built successfully"
+}
+
+# Load test module and capture output
+run_test_module() {
+    log_info "Loading test module..."
+    cd "$KERNEL_TEST_DIR"
+    
+    # Clear dmesg
+    dmesg -C
+    
+    # Load module
+    insmod gsp_vgpu_comprehensive_test.ko 2>&1 || {
+        log_error "Failed to load test module"
+        dmesg -T | tail -30
+        return 1
+    }
+    
+    # Wait for tests to complete
+    sleep 2
+    
+    # Get test results from dmesg
+    dmesg -T | grep -E "(PASS|FAIL|Test Results|TEST SUITE)" | tail -100
+    
+    # Check if tests passed
+    if dmesg | grep -q "TEST SUITE PASSED"; then
+        log_info "All tests PASSED!"
+        return 0
+    elif dmesg | grep -q "TEST SUITE FAILED"; then
+        log_error "Tests FAILED!"
+        return 1
+    else
+        log_warn "Could not determine test result"
+        return 1
+    fi
+}
+
+# Unload test module
+unload_test_module() {
+    log_info "Unloading test module..."
+    rmmod gsp_vgpu_comprehensive_test 2>/dev/null || true
+    sleep 1
+}
+
+# Build driver
+build_driver() {
+    log_info "Building vGPU-IO driver..."
+    cd "$DRIVER_DIR"
+    make clean
+    make
+    if [[ $? -ne 0 ]]; then
+        log_error "Failed to build driver"
+        exit 1
+    fi
+    log_info "Driver built successfully"
+}
+
+# Load driver
+load_driver() {
+    log_info "Loading vGPU-IO driver..."
+    cd "$DRIVER_DIR"
+    insmod gsp-vgpu.ko firmware_name=gsp-570.144.fwimage.bin 2>&1 || {
+        log_error "Failed to load driver"
+        dmesg -T | tail -30
+        return 1
+    }
+    
+    # Check if device created
+    sleep 2
+    if ls /dev/gsp-vgpu* 2>/dev/null; then
+        log_info "Driver loaded, device created"
+        return 0
+    else
+        log_warn "Driver loaded but no device node found"
+        dmesg -T | tail -20
+    fi
+}
+
+# Unload driver
+unload_driver() {
+    log_info "Unloading vGPU-IO driver..."
+    rmmod gsp-vgpu 2>/dev/null || true
+    sleep 1
+}
+
+# Run VF creation test
+test_vf_creation() {
+    log_info "Testing VF creation via debugfs..."
+    
+    # Check debugfs
+    if [[ -d /sys/kernel/debug/gsp-vgpu ]]; then
+        log_info "Debugfs interface available"
+        cat /sys/kernel/debug/gsp-vgpu/vfs
+    else
+        log_warn "Debugfs not mounted or driver not loaded"
+        return 1
+    fi
+}
+
+# Run RPC test via debugfs
+test_rpc_stats() {
+    log_info "Checking RPC statistics..."
+    if [[ -f /sys/kernel/debug/gsp-vgpu/rpc ]]; then
+        cat /sys/kernel/debug/gsp-vgpu/rpc
+    fi
+}
+
+# Main test runner
+main() {
+    local test_type="${1:-all}"
+    
+    check_root
+    
+    case "$test_type" in
+        "unit")
+            build_test_module
+            run_test_module
+            unload_test_module
+            ;;
+        "driver")
+            build_driver
+            load_driver
+            test_vf_creation
+            test_rpc_stats
+            unload_driver
+            ;;
+        "all"|*)
+            log_info "Running ALL tests..."
+            build_test_module
+            run_test_module
+            unload_test_module
+            
+            build_driver
+            load_driver
+            test_vf_creation
+            test_rpc_stats
+            unload_driver
+            ;;
+    esac
+    
+    log_info "Test run completed"
+}
+
+main "$@"
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