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diff --git a/userspace/sdks/nv525/nvidia/inc/nvsecurityinfo.h b/userspace/sdks/nv525/nvidia/inc/nvsecurityinfo.h
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+++ b/userspace/sdks/nv525/nvidia/inc/nvsecurityinfo.h
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+/*
+ * SPDX-FileCopyrightText: Copyright (c) 2017-2017 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_SECURITYINFO_H_
+#define _NV_SECURITYINFO_H_
+
+/// opaque token used for the security model on all OS's (UID/PID for Linux, SID Windows, etc)
+typedef void *PSECURITY_TOKEN;
+
+/**
+ * Specifies the privilege level of the caller
+ * Taken from resserv.h
+ */
+typedef enum 
+{
+    RS_PRIV_LEVEL_USER,
+    RS_PRIV_LEVEL_USER_ROOT,
+    RS_PRIV_LEVEL_KERNEL,
+    RS_PRIV_LEVEL_HOST,
+    RS_PRIV_LEVEL_CPU_MAX=RS_PRIV_LEVEL_HOST,
+    RS_PRIV_LEVEL_GPU1,
+    RS_PRIV_LEVEL_GPU2,
+    RS_PRIV_LEVEL_GPU3,
+} RS_PRIV_LEVEL;
+
+/**
+ * Specifies where the parameters are, user or kernel space (decide whether copy_in/out)
+ *
+ * PARAM_LOCATION_USER   - Parameters in user space
+ * PARAM_LOCATION_KERNEL - Parameters in kernel space
+ * PARAM_LOCATION_MIXED  - Parameters in kernel space with potential user mode pointers
+ */
+typedef enum _API_PARAM_LOCATION
+{
+    PARAM_LOCATION_USER   = 0,
+    PARAM_LOCATION_KERNEL = 1,
+    PARAM_LOCATION_MIXED  = 2,
+} API_PARAM_LOCATION;
+
+
+typedef struct _API_SECURITY_INFO
+{
+    RS_PRIV_LEVEL privLevel;
+    API_PARAM_LOCATION paramLocation;
+    PSECURITY_TOKEN pProcessToken;
+    void *clientOSInfo;
+    void *gpuOsInfo;
+} API_SECURITY_INFO;
+
+
+#endif // _NV_SECURITYINFO_H_