Initial commit: Open-IOV vGPU-IO complete stack

- 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

1 files changed, 93 insertions, 0 deletions

diff --git a/kernel/include/nv-hypervisor.h b/kernel/include/nv-hypervisor.h
new file mode 100644
index 0000000..a2b2649
--- /dev/null
+++ b/kernel/include/nv-hypervisor.h
@@ -0,0 +1,93 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 1999-2018 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _NV_HYPERVISOR_H_
+#define _NV_HYPERVISOR_H_
+
+#include <nv-kernel-interface-api.h>
+
+// Enums for supported hypervisor types.
+// New hypervisor type should be added before OS_HYPERVISOR_UNKNOWN
+typedef enum _HYPERVISOR_TYPE
+{
+    OS_HYPERVISOR_XEN = 0,
+    OS_HYPERVISOR_VMWARE,
+    OS_HYPERVISOR_HYPERV,
+    OS_HYPERVISOR_KVM,
+    OS_HYPERVISOR_UNKNOWN
+} HYPERVISOR_TYPE;
+
+#define CMD_VFIO_WAKE_REMOVE_GPU              1
+#define CMD_VGPU_VFIO_PRESENT                 2
+#define CMD_VFIO_PCI_CORE_PRESENT             3
+
+#define MAX_VF_COUNT_PER_GPU                  64
+
+typedef enum _VGPU_TYPE_INFO
+{
+    VGPU_TYPE_NAME = 0,
+    VGPU_TYPE_DESCRIPTION,
+    VGPU_TYPE_INSTANCES,
+} VGPU_TYPE_INFO;
+
+typedef struct
+{
+    void  *nv;
+    NvU32 domain;
+    NvU32 bus;
+    NvU32 device;
+    NvU32 return_status;
+} vgpu_vfio_info;
+
+typedef struct
+{
+    NvU32       domain;
+    NvU8        bus;
+    NvU8        slot;
+    NvU8        function;
+    NvBool      isNvidiaAttached;
+    NvBool      isMdevAttached;
+} vgpu_vf_pci_info;
+
+typedef enum VGPU_CMD_PROCESS_VF_INFO_E
+{
+    NV_VGPU_SAVE_VF_INFO         = 0,
+    NV_VGPU_REMOVE_VF_PCI_INFO   = 1,
+    NV_VGPU_REMOVE_VF_MDEV_INFO  = 2,
+    NV_VGPU_GET_VF_INFO          = 3
+} VGPU_CMD_PROCESS_VF_INFO;
+
+typedef enum VGPU_DEVICE_STATE_E
+{
+    NV_VGPU_DEV_UNUSED = 0,
+    NV_VGPU_DEV_OPENED = 1,
+    NV_VGPU_DEV_IN_USE = 2
+} VGPU_DEVICE_STATE;
+
+/*
+ * Function prototypes
+ */
+
+HYPERVISOR_TYPE NV_API_CALL nv_get_hypervisor_type(void);
+
+#endif // _NV_HYPERVISOR_H_