| 1 | /* $Id: uvm.h 6796 2008-02-04 18:19:58Z vboxsync $ */
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| 2 | /** @file
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| 3 | * GVM - The Global VM Data.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007 innotek GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | #ifndef ___VBox_uvm_h
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| 29 | #define ___VBox_uvm_h
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| 30 |
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| 31 |
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| 32 | #include <VBox/types.h>
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| 33 |
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| 34 | /**
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| 35 | * The ring-3 (user mode) VM structure.
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| 36 | *
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| 37 | * This structure is similar to VM and GVM except that it resides in swappable
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| 38 | * user memory. The main purpose is to assist bootstrapping, where it allows us
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| 39 | * to start EMT much earlier and gives PDMLdr somewhere to put it's VMMR0 data.
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| 40 | * It is also a nice place to put big things that are user mode only.
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| 41 | */
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| 42 | typedef struct UVM
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| 43 | {
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| 44 | /** Magic / eye-catcher (UVM_MAGIC). */
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| 45 | uint32_t u32Magic;
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| 46 | uint32_t uReserved; /**< alignment */
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| 47 | /** The ring-3 mapping of the shared VM structure. */
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| 48 | PVM pVM;
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| 49 | /** Pointer to the next VM.
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| 50 | * We keep a per process list of VM for the event that a process could
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| 51 | * contain more than one VM.
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| 52 | * @todo move this into vm.s!
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| 53 | */
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| 54 | struct UVM *pNext;
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| 55 |
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| 56 | /** The VM internal data. */
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| 57 | struct
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| 58 | {
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| 59 | #ifdef ___VMInternal_h
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| 60 | struct VMINTUSERPERVM s;
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| 61 | #endif
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| 62 | uint8_t padding[768];
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| 63 | } vm;
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| 64 |
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| 65 | /** The MM data. */
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| 66 | struct
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| 67 | {
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| 68 | #ifdef ___MMInternal_h
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| 69 | struct MMUSERPERVM s;
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| 70 | #endif
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| 71 | uint8_t padding[32];
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| 72 | } mm;
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| 73 |
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| 74 | /** The PDM data. */
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| 75 | struct
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| 76 | {
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| 77 | #ifdef ___PDMInternal_h
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| 78 | struct PDMUSERPERVM s;
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| 79 | #endif
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| 80 | uint8_t padding[32];
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| 81 | } pdm;
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| 82 |
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| 83 | /** The STAM data. */
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| 84 | struct
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| 85 | {
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| 86 | #ifdef ___STAMInternal_h
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| 87 | struct STAMUSERPERVM s;
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| 88 | #endif
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| 89 | uint8_t padding[256];
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| 90 | } stam;
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| 91 |
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| 92 | } UVM;
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| 93 |
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| 94 | /** The UVM::u32Magic value (Brad Mehldau). */
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| 95 | #define UVM_MAGIC 0x19700823
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| 96 |
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| 97 | #endif
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| 98 |
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