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, 59 insertions, 0 deletions

diff --git a/scripts/test_gsp_emu.sh b/scripts/test_gsp_emu.sh
new file mode 100755
index 0000000..1f6bc6f
--- /dev/null
+++ b/scripts/test_gsp_emu.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+# GSP Emulation Unit Tests
+# Runs kernel module tests for GSP emulation engine
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+OPEN_IOV_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+KERNEL_TEST_DIR="$OPEN_IOV_ROOT/kernel/tests"
+
+echo "=== GSP Emulation Unit Tests ==="
+echo "Open-IOV root: $OPEN_IOV_ROOT"
+echo "Kernel test dir: $KERNEL_TEST_DIR"
+
+# Check if we're root
+if [ "$EUID" -ne 0 ]; then
+    echo "ERROR: This script must be run as root"
+    exit 1
+fi
+
+# Build the test module
+echo "Building GSP emulation test module..."
+cd "$KERNEL_TEST_DIR"
+make clean
+make
+
+if [ ! -f gsp_emulation_test.ko ]; then
+    echo "ERROR: Failed to build gsp_emulation_test.ko"
+    exit 1
+fi
+
+echo "Test module built successfully"
+
+# Load the test module
+echo "Loading test module..."
+insmod gsp_emulation_test.ko
+
+# Check dmesg for test results
+sleep 2
+echo "=== Test Results ==="
+dmesg -T | grep -i "gsp_emu_test" | tail -30
+
+# Check if tests passed
+if dmesg -T | grep -q "GSP_EMU_TEST: ALL TESTS PASSED"; then
+    echo "✓ ALL TESTS PASSED"
+    RESULT=0
+elif dmesg -T | grep -q "GSP_EMU_TEST:.*TEST.S. FAILED"; then
+    echo "✗ SOME TESTS FAILED"
+    RESULT=1
+else
+    echo "? TEST RESULT UNKNOWN"
+    RESULT=2
+fi
+
+# Unload test module
+echo "Unloading test module..."
+rmmod gsp_emulation_test 2>/dev/null || true
+
+exit $RESULT
\ No newline at end of file