VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMR0/GMMR0Internal.h@ 15749

Last change on this file since 15749 was 8155, checked in by vboxsync, 17 years ago

The Big Sun Rebranding Header Change

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 3.0 KB
Line 
1/* $Id: GMMR0Internal.h 8155 2008-04-18 15:16:47Z vboxsync $ */
2/** @file
3 * GMM - The Global Memory Manager, Internal Header.
4 */
5
6/*
7 * Copyright (C) 2007 Sun Microsystems, Inc.
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18 * Clara, CA 95054 USA or visit http://www.sun.com if you need
19 * additional information or have any questions.
20 */
21
22#ifndef ___GMMR0Internal_h
23#define ___GMMR0Internal_h
24
25#include <VBox/gmm.h>
26
27/**
28 * The allocation sizes.
29 */
30typedef struct GMMVMSIZES
31{
32 /** The number of pages of base memory.
33 * This is the sum of RAM, ROMs and handy pages. */
34 uint64_t cBasePages;
35 /** The number of pages for the shadow pool. (Can be sequeezed for memory.) */
36 uint32_t cShadowPages;
37 /** The number of pages for fixed allocations like MMIO2 and the hyper heap. */
38 uint32_t cFixedPages;
39} GMMVMSIZES;
40typedef GMMVMSIZES *PGMMVMSIZES;
41
42
43/**
44 * The per-VM GMM data.
45 */
46typedef struct GMMPERVM
47{
48 /** The reservations. */
49 GMMVMSIZES Reserved;
50 /** The actual allocations.
51 * This includes both private and shared page allocations. */
52 GMMVMSIZES Allocated;
53
54 /** The current number of private pages. */
55 uint64_t cPrivatePages;
56 /** The current number of shared pages. */
57 uint64_t cSharedPages;
58 /** The current over-comitment policy. */
59 GMMOCPOLICY enmPolicy;
60 /** The VM priority for arbitrating VMs in low and out of memory situation.
61 * Like which VMs to start sequeezing first. */
62 GMMPRIORITY enmPriority;
63
64 /** The current number of ballooned pages. */
65 uint64_t cBalloonedPages;
66 /** The max number of pages that can be ballooned. */
67 uint64_t cMaxBalloonedPages;
68 /** The number of pages we've currently requested the guest to give us.
69 * This is 0 if no pages currently requested. */
70 uint64_t cReqBalloonedPages;
71 /** The number of pages the guest has given us in response to the request.
72 * This is not reset on request completed and may be used in later decisions. */
73 uint64_t cReqActuallyBalloonedPages;
74 /** The number of pages we've currently requested the guest to take back. */
75 uint64_t cReqDeflatePages;
76 /** Whether ballooning is enabled or not. */
77 bool fBallooningEnabled;
78
79 /** Whether the VM is allowed to allocate memory or not.
80 * This is used when the reservation update request fails or when the VM has
81 * been told to suspend/save/die in an out-of-memory case. */
82 bool fMayAllocate;
83} GMMPERVM;
84/** Pointer to the per-VM GMM data. */
85typedef GMMPERVM *PGMMPERVM;
86
87#endif
88
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