/* $Id: PGMSharedPage.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
/** @file
 * PGM - Page Manager and Monitor, Shared page handling
 */

/*
 * Copyright (C) 2006-2010 Oracle Corporation
 *
 * 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.
 */


/*******************************************************************************
*   Header Files                                                               *
*******************************************************************************/
#define LOG_GROUP LOG_GROUP_PGM
#include <VBox/pgm.h>
#include <VBox/stam.h>
#include "PGMInternal.h"
#include <VBox/vm.h>
#include <VBox/sup.h>
#include <VBox/param.h>
#include <VBox/err.h>
#include <VBox/log.h>
#include <iprt/assert.h>
#include <iprt/asm.h>


/**
 * Registers a new shared module for the VM
 *
 * @returns VBox status code.
 * @param   pVM                 VM handle
 * @param   pszModuleName       Module name
 * @param   pszVersion          Module version
 * @param   GCBaseAddr          Module base address
 * @param   cbModule            Module size
 * @param   cRegions            Number of shared region descriptors
 * @param   pRegions            Shared region(s)
 */
VMMR3DECL(int) PGMR3SharedModuleRegister(PVM pVM, char *pszModuleName, char *pszVersion, RTGCPTR GCBaseAddr, uint32_t cbModule,
                                         unsigned cRegions, VMMDEVSHAREDREGIONDESC *pRegions)
{
#ifdef VBOX_WITH_PAGE_SHARING
    return GMMR3RegisterSharedModule(pVM, pszModuleName, pszVersion, GCBaseAddr, cbModule, cRegions, pRegions);
#else 
    return VERR_NOT_IMPLEMENTED;
#endif
}


/**
 * Unregisters a shared module for the VM
 *
 * @returns VBox status code.
 * @param   pVM                 VM handle
 * @param   pszModuleName       Module name
 * @param   pszVersion          Module version
 * @param   GCBaseAddr          Module base address
 * @param   cbModule            Module size
 */
VMMR3DECL(int) PGMR3SharedModuleUnregister(PVM pVM, char *pszModuleName, char *pszVersion, RTGCPTR GCBaseAddr, uint32_t cbModule)
{
#ifdef VBOX_WITH_PAGE_SHARING
    return GMMR3UnregisterSharedModule(pVM, pszModuleName, pszVersion, GCBaseAddr, cbModule);
#else 
    return VERR_NOT_IMPLEMENTED;
#endif
}


/**
 * Checks regsitered modules for shared pages
 *
 * @returns VBox status code.
 * @param   pVM                 VM handle
 */
VMMR3DECL(int) PGMR3SharedModuleCheck(PVM pVM)
{
#ifdef VBOX_WITH_PAGE_SHARING
    return GMMR3CheckSharedModules(pVM);
#else 
    return VERR_NOT_IMPLEMENTED;
#endif
}