1 files changed, 88 insertions, 0 deletions
diff --git a/include/VBox/Graphics/HGSMIChSetup.h b/include/VBox/Graphics/HGSMIChSetup.h
new file mode 100644
index 00000000..0e11b580
--- /dev/null
+++ b/include/VBox/Graphics/HGSMIChSetup.h
@@ -0,0 +1,88 @@
+/* $Id: HGSMIChSetup.h $ */
+/** @file
+ * VBox Host Guest Shared Memory Interface (HGSMI), Host/Guest shared part.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * 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 VBOX_INCLUDED_Graphics_HGSMIChSetup_h
+#define VBOX_INCLUDED_Graphics_HGSMIChSetup_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include "HGSMIDefs.h"
+
+/* HGSMI setup and configuration channel commands and data structures. */
+/*
+ * Tell the host the location of hgsmi_host_flags structure, where the host
+ * can write information about pending buffers, etc, and which can be quickly
+ * polled by the guest without a need to port IO.
+ */
+#define HGSMI_CC_HOST_FLAGS_LOCATION 0
+
+typedef struct HGSMIBUFFERLOCATION
+{
+    HGSMIOFFSET offLocation;
+    HGSMISIZE   cbLocation;
+} HGSMIBUFFERLOCATION;
+AssertCompileSize(HGSMIBUFFERLOCATION, 8);
+
+/* HGSMI setup and configuration data structures. */
+/* host->guest commands pending, should be accessed under FIFO lock only */
+#define HGSMIHOSTFLAGS_COMMANDS_PENDING    UINT32_C(0x01)
+/* IRQ is fired, should be accessed under VGAState::lock only  */
+#define HGSMIHOSTFLAGS_IRQ                 UINT32_C(0x02)
+#ifdef VBOX_WITH_WDDM
+/* one or more guest commands is completed, should be accessed under FIFO lock only */
+# define HGSMIHOSTFLAGS_GCOMMAND_COMPLETED UINT32_C(0x04)
+#endif
+/* vsync interrupt flag, should be accessed under VGAState::lock only */
+#define HGSMIHOSTFLAGS_VSYNC               UINT32_C(0x10)
+/** monitor hotplug flag, should be accessed under VGAState::lock only */
+#define HGSMIHOSTFLAGS_HOTPLUG             UINT32_C(0x20)
+/**
+ * Cursor capability state change flag, should be accessed under
+ * VGAState::lock only.  @see VBVACONF32.
+ */
+#define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES UINT32_C(0x40)
+
+typedef struct HGSMIHOSTFLAGS
+{
+    /*
+     * Host flags can be accessed and modified in multiple threads
+     * concurrently, e.g. CrOpenGL HGCM and GUI threads when completing
+     * HGSMI 3D and Video Accel respectively, EMT thread when dealing with
+     * HGSMI command processing, etc.
+     * Besides settings/cleaning flags atomically, some flags have their
+     * own special sync restrictions, see comments for flags above.
+     */
+    volatile uint32_t u32HostFlags;
+    uint32_t au32Reserved[3];
+} HGSMIHOSTFLAGS;
+AssertCompileSize(HGSMIHOSTFLAGS, 16);
+
+#endif /* !VBOX_INCLUDED_Graphics_HGSMIChSetup_h */