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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /include/VBox/Graphics/HGSMIChSetup.h | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | include/VBox/Graphics/HGSMIChSetup.h | 88 |
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..fcb43f8d --- /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) 2006-2023 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 */ |