From 00e54c13c7c9030c4d5f7151467f2d85a3730e29 Mon Sep 17 00:00:00 2001
From: Arthur Hanson Rasmusson <arthur@vgpu.io>
Date: Sun, 13 Sep 2026 18:36:21 -0400
Subject: 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
---
 userspace/sdks/nv570/inc/ctrl/ctrlc638.h | 91 ++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 userspace/sdks/nv570/inc/ctrl/ctrlc638.h

(limited to 'userspace/sdks/nv570/inc/ctrl/ctrlc638.h')

diff --git a/userspace/sdks/nv570/inc/ctrl/ctrlc638.h b/userspace/sdks/nv570/inc/ctrl/ctrlc638.h
new file mode 100644
index 0000000..5e848a9
--- /dev/null
+++ b/userspace/sdks/nv570/inc/ctrl/ctrlc638.h
@@ -0,0 +1,91 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2021-2022 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.
+ */
+
+#pragma once
+
+#include <nvtypes.h>
+
+//
+// This file was generated with FINN, an NVIDIA coding tool.
+// Source file:      ctrl/ctrlc638.finn
+//
+
+#include "ctrl/ctrlxxxx.h"
+/* AMPERE_SMC_EXEC_PARTITION_REF commands and parameters */
+
+#define NVC638_CTRL_CMD(cat,idx)             NVXXXX_CTRL_CMD(0xC638, NVC638_CTRL_##cat, idx)
+
+/* Command categories (6bits) */
+#define NVC638_CTRL_RESERVED       (0x00)
+#define NVC638_CTRL_EXEC_PARTITION (0x01)
+
+/*!
+ * NVC638_CTRL_CMD_NULL
+ *
+ * This command does nothing.
+ * This command does not take any parameters.
+ *
+ * Possible status values returned are:
+ *   NV_OK
+ */
+#define NVC638_CTRL_CMD_NULL       (0xc6380000) /* finn: Evaluated from "(FINN_AMPERE_SMC_EXEC_PARTITION_REF_RESERVED_INTERFACE_ID << 8) | 0x0" */
+
+/*!
+ * NVC638_CTRL_CMD_GET_UUID
+ *
+ * This command returns SHA1 ASCII UUID string as well as the binary UUID for
+ * the execution partition. The ASCII string format is,
+ * "MIG-%16x-%08x-%08x-%08x-%024x" (the canonical format of a UUID)
+ *
+ * uuid[OUT]
+ *      - Raw UUID bytes
+ *
+ * uuidStr[OUT]
+ *      - ASCII UUID string
+ *
+ * Possible status return values are:
+ *   NV_OK
+ *   NV_ERR_NOT_SUPPORTED
+ *   NV_ERR_INVALID_STATE
+ */
+
+#define NVC638_UUID_LEN            16
+
+/* 'M' 'I' 'G' '-'(x5), '\0x0', extra = 9 */
+#define NVC638_UUID_STR_LEN        (0x29) /* finn: Evaluated from "((NVC638_UUID_LEN << 1) + 9)" */
+
+
+
+#define NVC638_CTRL_CMD_GET_UUID (0xc6380101) /* finn: Evaluated from "(FINN_AMPERE_SMC_EXEC_PARTITION_REF_EXEC_PARTITION_INTERFACE_ID << 8) | NVC638_CTRL_GET_UUID_PARAMS_MESSAGE_ID" */
+
+
+
+#define NVC638_CTRL_GET_UUID_PARAMS_MESSAGE_ID (0x1U)
+
+typedef struct NVC638_CTRL_GET_UUID_PARAMS {
+    // C form: NvU8 uuid[NVC638_UUID_LEN];
+    NvU8 uuid[NVC638_UUID_LEN];
+
+    // C form: char uuidStr[NVC638_UUID_STR_LEN];
+    char uuidStr[NVC638_UUID_STR_LEN];
+} NVC638_CTRL_GET_UUID_PARAMS;//  _ctrlc638_h_
-- 
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