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/* $Id: uvm.h 29865 2008-04-18 15:16:47Z umoeller $ */
/** @file
* GVM - The Global VM Data.
*/
/*
* Copyright (C) 2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#ifndef ___VBox_uvm_h
#define ___VBox_uvm_h
#include <VBox/types.h>
/**
* The ring-3 (user mode) VM structure.
*
* This structure is similar to VM and GVM except that it resides in swappable
* user memory. The main purpose is to assist bootstrapping, where it allows us
* to start EMT much earlier and gives PDMLdr somewhere to put it's VMMR0 data.
* It is also a nice place to put big things that are user mode only.
*/
typedef struct UVM
{
/** Magic / eye-catcher (UVM_MAGIC). */
uint32_t u32Magic;
uint32_t uReserved; /**< alignment */
/** The ring-3 mapping of the shared VM structure. */
PVM pVM;
/** Pointer to the next VM.
* We keep a per process list of VM for the event that a process could
* contain more than one VM.
* @todo move this into vm.s!
*/
struct UVM *pNext;
/** The VM internal data. */
struct
{
#ifdef ___VMInternal_h
struct VMINTUSERPERVM s;
#endif
uint8_t padding[768];
} vm;
/** The MM data. */
struct
{
#ifdef ___MMInternal_h
struct MMUSERPERVM s;
#endif
uint8_t padding[32];
} mm;
/** The PDM data. */
struct
{
#ifdef ___PDMInternal_h
struct PDMUSERPERVM s;
#endif
uint8_t padding[32];
} pdm;
/** The STAM data. */
struct
{
#ifdef ___STAMInternal_h
struct STAMUSERPERVM s;
#endif
uint8_t padding[256];
} stam;
} UVM;
/** The UVM::u32Magic value (Brad Mehldau). */
#define UVM_MAGIC 0x19700823
#endif
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