| 1 | /* $Id: VbglR0CanUsePhysPageList.cpp 69500 2017-10-28 15:14:05Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VBoxGuestLibR0 - Physical memory heap.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2017 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #include "VBoxGuestR0LibInternal.h"
|
|---|
| 32 |
|
|---|
| 33 |
|
|---|
| 34 | /**
|
|---|
| 35 | * Checks whether the host supports physical page lists or not.
|
|---|
| 36 | *
|
|---|
| 37 | * @returns true if it does, false if it doesn't.
|
|---|
| 38 | */
|
|---|
| 39 | DECLR0VBGL(bool) VbglR0CanUsePhysPageList(void)
|
|---|
| 40 | {
|
|---|
| 41 | /* a_fLocked is false, because the actual capability of the host is requested.
|
|---|
| 42 | * See VBGLR0_CAN_USE_PHYS_PAGE_LIST definition.
|
|---|
| 43 | */
|
|---|
| 44 | int rc = vbglR0Enter();
|
|---|
| 45 | return RT_SUCCESS(rc)
|
|---|
| 46 | && VBGLR0_CAN_USE_PHYS_PAGE_LIST(/*a_fLocked =*/ false);
|
|---|
| 47 | }
|
|---|
| 48 |
|
|---|
