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/* Id: 73443 $ */
/** @file
* VBoxGuestLibR0 - Internal header.
*/
/*
* Copyright (C) 2006-2013 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.
*
* 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.
*/
#ifndef ___VBoxGuestLib_VBGLInternal_h
#define ___VBoxGuestLib_VBGLInternal_h
#include <VBox/VMMDev.h>
#include <VBox/VBoxGuest.h>
#include <VBox/VBoxGuestLib.h>
#include <VBox/log.h>
#ifdef RT_OS_WINDOWS /** @todo dprintf() -> Log() */
# if (defined(DEBUG) && !defined(NO_LOGGING)) || defined(LOG_ENABLED)
# define dprintf(a) RTLogBackdoorPrintf a
# else
# define dprintf(a) do {} while (0)
# endif
#else
# define dprintf(a) Log(a)
#endif
#include "SysHlp.h"
#pragma pack(4) /** @todo r=bird: What do we need packing for here? None of these structures are shared between drivers AFAIK. */
struct _VBGLPHYSHEAPBLOCK;
typedef struct _VBGLPHYSHEAPBLOCK VBGLPHYSHEAPBLOCK;
struct _VBGLPHYSHEAPCHUNK;
typedef struct _VBGLPHYSHEAPCHUNK VBGLPHYSHEAPCHUNK;
#ifndef VBGL_VBOXGUEST
struct VBGLHGCMHANDLEDATA
{
uint32_t fAllocated;
VBGLDRIVER driver;
};
#endif
enum VbglLibStatus
{
VbglStatusNotInitialized = 0,
VbglStatusInitializing,
VbglStatusReady
};
/**
* Global VBGL ring-0 data.
* Lives in VbglR0Init.cpp.
*/
typedef struct _VBGLDATA
{
enum VbglLibStatus status;
VBGLIOPORT portVMMDev;
VMMDevMemory *pVMMDevMemory;
/**
* Physical memory heap data.
* @{
*/
VBGLPHYSHEAPBLOCK *pFreeBlocksHead;
VBGLPHYSHEAPBLOCK *pAllocBlocksHead;
VBGLPHYSHEAPCHUNK *pChunkHead;
RTSEMFASTMUTEX mutexHeap;
/** @} */
/**
* The host version data.
*/
VMMDevReqHostVersion hostVersion;
#ifndef VBGL_VBOXGUEST
/**
* Handle for the main driver instance.
* @{
*/
RTSEMMUTEX mutexDriverInit;
VBGLDRIVER driver;
/** @} */
/**
* Fast heap for HGCM handles data.
* @{
*/
RTSEMFASTMUTEX mutexHGCMHandle;
struct VBGLHGCMHANDLEDATA aHGCMHandleData[64];
/** @} */
#endif
} VBGLDATA;
#pragma pack()
#ifndef VBGL_DECL_DATA
extern VBGLDATA g_vbgldata;
#endif
/**
* Internal macro for checking whether we can pass physical page lists to the
* host.
*
* ASSUMES that vbglR0Enter has been called already.
*
* @param a_fLocked For the windows shared folders workarounds.
*
* @remarks Disabled the PageList feature for locked memory on Windows,
* because a new MDL is created by VBGL to get the page addresses
* and the pages from the MDL are marked as dirty when they should not.
*/
#if defined(RT_OS_WINDOWS)
# define VBGLR0_CAN_USE_PHYS_PAGE_LIST(a_fLocked) \
( !(a_fLocked) && (g_vbgldata.hostVersion.features & VMMDEV_HVF_HGCM_PHYS_PAGE_LIST) )
#else
# define VBGLR0_CAN_USE_PHYS_PAGE_LIST(a_fLocked) \
( !!(g_vbgldata.hostVersion.features & VMMDEV_HVF_HGCM_PHYS_PAGE_LIST) )
#endif
int vbglR0Enter (void);
#ifdef VBOX_WITH_HGCM
# ifndef VBGL_VBOXGUEST
int vbglR0HGCMInit (void);
int vbglR0HGCMTerminate (void);
# endif
#endif /* VBOX_WITH_HGCM */
#ifndef VBGL_VBOXGUEST
/**
* Get a handle to the main VBoxGuest driver.
* @returns VERR_TRY_AGAIN if the main driver has not yet been loaded.
*/
int vbglGetDriver(VBGLDRIVER **ppDriver);
#endif
#endif /* !___VBoxGuestLib_VBGLInternal_h */
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