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, 35 insertions, 0 deletions

diff --git a/kernel/version/version.h b/kernel/version/version.h
new file mode 100644
index 0000000..818d939
--- /dev/null
+++ b/kernel/version/version.h
@@ -0,0 +1,35 @@
+#ifndef _VERSION_H_
+#define _VERSION_H_
+
+#include <linux/types.h>
+
+/* Driver features */
+enum driver_feature {
+    DRV_FEAT_VGPU_VFIO,
+    DRV_FEAT_MIGRATION,
+    DRV_FEAT_SCHEDULING,
+    DRV_FEAT_NOTIFICATIONS,
+    DRV_FEAT_WPR,
+};
+
+/* Driver interface definition */
+struct driver_interface {
+    const char *version;
+    int major;
+    int minor;
+    bool has_vgpu_vfio;
+    bool has_migration;
+    bool has_scheduling;
+    bool has_notifications;
+    bool has_wpr;
+};
+
+/* Version registry */
+struct driver_interface *version_get_interface(const char *version_str);
+struct driver_interface *version_get_by_kernel_version(void);
+
+/* Feature queries */
+bool version_has_feature(struct driver_interface *iface, enum driver_feature feature);
+const char *version_get_string(struct driver_interface *iface);
+
+#endif /* _VERSION_H_ */
\ No newline at end of file