SSM.cpp@ 16281

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1	/* $Id: SSM.cpp 16165 2009-01-22 13:22:06Z vboxsync $ */
2	/** @file
3	* SSM - Saved State Manager.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 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
23	/** @page pg_ssm SSM - The Saved State Manager
24	*
25	* The Saved State Manager (SSM) implements facilities for saving and loading a
26	* VM state in a structural manner using callbacks for each collection of data
27	* which needs saving.
28	*
29	* At init time each of the VMM components, Devices, Drivers and one or two
30	* other things will register data entities which they need to save and restore.
31	* Each entity have a unique name (ascii), instance number, and a set of
32	* callbacks associated with it. The name will be used to identify the entity
33	* during restore. The callbacks are for the two operations, save and restore.
34	* There are three callbacks for each of the two - a prepare, a execute and a
35	* complete - giving each component ample opportunity to perform actions both
36	* before and afterwards.
37	*
38	* The SSM provides a number of APIs for encoding and decoding the data.
39	*
40	* @see grp_ssm
41	*
42	*
43	* @section sec_ssm_future Future Changes
44	*
45	* There are plans to extend SSM to make it easier to be both backwards and
46	* (somewhat) forwards compatible. One of the new features will be being able
47	* to classify units and data items as unimportant, one example where this would
48	* be nice can be seen in with the SSM data unit. Another potentail feature is
49	* naming data items, perhaps by extending the SSMR3PutStruct API.
50	*
51	*/
52
53
54	/*******************************************************************************
55	* Header Files *
56	*******************************************************************************/
57	#define LOG_GROUP LOG_GROUP_SSM
58	#include <VBox/ssm.h>
59	#include <VBox/dbgf.h>
60	#include <VBox/mm.h>
61	#include "SSMInternal.h"
62	#include <VBox/vm.h>
63	#include <VBox/err.h>
64	#include <VBox/log.h>
65	#include <VBox/version.h>
66
67	#include <iprt/assert.h>
68	#include <iprt/file.h>
69	#include <iprt/alloc.h>
70	#include <iprt/uuid.h>
71	#include <iprt/zip.h>
72	#include <iprt/crc32.h>
73	#include <iprt/thread.h>
74	#include <iprt/string.h>
75
76
77	/*******************************************************************************
78	* Defined Constants And Macros *
79	*******************************************************************************/
80	/** Saved state file magic base string. */
81	#define SSMFILEHDR_MAGIC_BASE "\177VirtualBox SavedState "
82	/** Saved state file v1.0 magic. */
83	#define SSMFILEHDR_MAGIC_V1_0 "\177VirtualBox SavedState V1.0\n"
84	/** Saved state file v1.1 magic. */
85	#define SSMFILEHDR_MAGIC_V1_1 "\177VirtualBox SavedState V1.1\n"
86	/** Saved state file v1.2 magic. */
87	#define SSMFILEHDR_MAGIC_V1_2 "\177VirtualBox SavedState V1.2\n\0\0\0"
88
89	/** Data unit magic. */
90	#define SSMFILEUNITHDR_MAGIC "\nUnit\n"
91	/** Data end marker magic. */
92	#define SSMFILEUNITHDR_END "\nTheEnd"
93
94	/** Start structure magic. (Isacc Asimov) */
95	#define SSMR3STRUCT_BEGIN 0x19200102
96	/** End structure magic. (Isacc Asimov) */
97	#define SSMR3STRUCT_END 0x19920406
98
99
100	/*******************************************************************************
101	* Structures and Typedefs *
102	*******************************************************************************/
103	/** SSM state. */
104	typedef enum SSMSTATE
105	{
106	SSMSTATE_INVALID = 0,
107	SSMSTATE_SAVE_PREP,
108	SSMSTATE_SAVE_EXEC,
109	SSMSTATE_SAVE_DONE,
110	SSMSTATE_LOAD_PREP,
111	SSMSTATE_LOAD_EXEC,
112	SSMSTATE_LOAD_DONE,
113	SSMSTATE_OPEN_READ
114	} SSMSTATE;
115
116
117	/**
118	* Handle structure.
119	*/
120	typedef struct SSMHANDLE
121	{
122	/** The file handle. */
123	RTFILE File;
124	/** The VM handle. */
125	PVM pVM;
126	/** The size of the file header.
127	* Because the file header was incorrectly aligned there we've ended up with
128	* differences between the 64-bit and 32-bit file header. */
129	size_t cbFileHdr;
130	/** The current operation. */
131	SSMSTATE enmOp;
132	/** What to do after save completes. (move the enum) */
133	SSMAFTER enmAfter;
134	/** The current rc of the save operation. */
135	int rc;
136	/** The compressor of the current data unit. */
137	PRTZIPCOMP pZipComp;
138	/** The decompressor of the current data unit. */
139	PRTZIPDECOMP pZipDecomp;
140	/** Number of bytes left in the current data unit. */
141	uint64_t cbUnitLeft;
142
143	/** Pointer to the progress callback function. */
144	PFNVMPROGRESS pfnProgress;
145	/** User specified arguemnt to the callback function. */
146	void *pvUser;
147	/** Next completion percentage. (corresponds to offEstProgress) */
148	unsigned uPercent;
149	/** The position of the next progress callback in the estimated file. */
150	uint64_t offEstProgress;
151	/** The estimated total byte count.
152	* (Only valid after the prep.) */
153	uint64_t cbEstTotal;
154	/** Current position in the estimated file. */
155	uint64_t offEst;
156	/** End of current unit in the estimated file. */
157	uint64_t offEstUnitEnd;
158	/** the amount of % we reserve for the 'prepare' phase */
159	unsigned uPercentPrepare;
160	/** the amount of % we reserve for the 'done' stage */
161	unsigned uPercentDone;
162
163	/** RTGCPHYS size in bytes. (Only applicable when loading/reading.) */
164	unsigned cbGCPhys;
165	/** RTGCPTR size in bytes. (Only applicable when loading/reading.) */
166	unsigned cbGCPtr;
167	/** Whether cbGCPtr is fixed or settable. */
168	bool fFixedGCPtrSize;
169	} SSMHANDLE;
170
171
172	/**
173	* Header of the saved state file.
174	*
175	* @remarks This is a superset of SSMFILEHDRV11.
176	*/
177	typedef struct SSMFILEHDR
178	{
179	/** Magic string which identifies this file as a version of VBox saved state
180	* file format (SSMFILEHDR_MAGIC_V1_2). */
181	char achMagic[32];
182	/** The size of this file. Used to check
183	* whether the save completed and that things are fine otherwise. */
184	uint64_t cbFile;
185	/** File checksum. The actual calculation skips past the u32CRC field. */
186	uint32_t u32CRC;
187	/** Padding. */
188	uint32_t u32Reserved;
189	/** The machine UUID. (Ignored if NIL.) */
190	RTUUID MachineUuid;
191
192	/** The major version number. */
193	uint16_t u16VerMajor;
194	/** The minor version number. */
195	uint16_t u16VerMinor;
196	/** The build number. */
197	uint32_t u32VerBuild;
198	/** The SVN revision. */
199	uint32_t u32SvnRev;
200
201	/** 32 or 64 depending on the host. */
202	uint8_t cHostBits;
203	/** The size of RTGCPHYS. */
204	uint8_t cbGCPhys;
205	/** The size of RTGCPTR. */
206	uint8_t cbGCPtr;
207	/** Padding. */
208	uint8_t au8Reserved;
209	} SSMFILEHDR;
210	AssertCompileSize(SSMFILEHDR, 64+16);
211	AssertCompileMemberSize(SSMFILEHDR, achMagic, sizeof(SSMFILEHDR_MAGIC_V1_2));
212	/** Pointer to a saved state file header. */
213	typedef SSMFILEHDR *PSSMFILEHDR;
214
215
216	/**
217	* Header of the saved state file, version 1.1.
218	*/
219	typedef struct SSMFILEHDRV11
220	{
221	/** Magic string which identifies this file as a version of VBox saved state
222	* file format (SSMFILEHDR_MAGIC_V1_1). */
223	char achMagic[32];
224	/** The size of this file. Used to check
225	* whether the save completed and that things are fine otherwise. */
226	uint64_t cbFile;
227	/** File checksum. The actual calculation skips past the u32CRC field. */
228	uint32_t u32CRC;
229	/** Padding. */
230	uint32_t u32Reserved;
231	/** The machine UUID. (Ignored if NIL.) */
232	RTUUID MachineUuid;
233	} SSMFILEHDRV11;
234	AssertCompileSize(SSMFILEHDRV11, 64);
235	/** Pointer to a saved state file header. */
236	typedef SSMFILEHDRV11 *PSSMFILEHDRV11;
237
238
239	/**
240	* The x86 edition of the 1.0 header.
241	*/
242	#pragma pack(1) /* darn, MachineUuid got missaligned! */
243	typedef struct SSMFILEHDRV10X86
244	{
245	/** Magic string which identifies this file as a version of VBox saved state
246	* file format (SSMFILEHDR_MAGIC_V1_0). */
247	char achMagic[32];
248	/** The size of this file. Used to check
249	* whether the save completed and that things are fine otherwise. */
250	uint64_t cbFile;
251	/** File checksum. The actual calculation skips past the u32CRC field. */
252	uint32_t u32CRC;
253	/** The machine UUID. (Ignored if NIL.) */
254	RTUUID MachineUuid;
255	} SSMFILEHDRV10X86;
256	#pragma pack()
257	/** Pointer to a SSMFILEHDRV10X86. */
258	typedef SSMFILEHDRV10X86 *PSSMFILEHDRV10X86;
259
260	/**
261	* The amd64 edition of the 1.0 header.
262	*/
263	typedef SSMFILEHDR SSMFILEHDRV10AMD64;
264	/** Pointer to SSMFILEHDRV10AMD64. */
265	typedef SSMFILEHDRV10AMD64 *PSSMFILEHDRV10AMD64;
266
267
268	/**
269	* Data unit header.
270	*/
271	typedef struct SSMFILEUNITHDR
272	{
273	/** Magic (SSMFILEUNITHDR_MAGIC or SSMFILEUNITHDR_END). */
274	char achMagic[8];
275	/** Number of bytes in this data unit including the header. */
276	uint64_t cbUnit;
277	/** Data version. */
278	uint32_t u32Version;
279	/** Instance number. */
280	uint32_t u32Instance;
281	/** Size of the data unit name including the terminator. (bytes) */
282	uint32_t cchName;
283	/** Data unit name. */
284	char szName[1];
285	} SSMFILEUNITHDR;
286	/** Pointer to SSMFILEUNITHDR. */
287	typedef SSMFILEUNITHDR *PSSMFILEUNITHDR;
288
289
290	/*******************************************************************************
291	* Internal Functions *
292	*******************************************************************************/
293	static int ssmR3LazyInit(PVM pVM);
294	static DECLCALLBACK(int) ssmR3SelfSaveExec(PVM pVM, PSSMHANDLE pSSM);
295	static DECLCALLBACK(int) ssmR3SelfLoadExec(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
296	static int ssmR3Register(PVM pVM, const char pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess, PSSMUNIT ppUnit);
297	static int ssmR3CalcChecksum(RTFILE File, uint64_t cbFile, uint32_t *pu32CRC);
298	static void ssmR3Progress(PSSMHANDLE pSSM, uint64_t cbAdvance);
299	static int ssmR3Validate(RTFILE File, PSSMFILEHDR pHdr, size_t *pcbFileHdr);
300	static PSSMUNIT ssmR3Find(PVM pVM, const char *pszName, uint32_t u32Instance);
301	static int ssmR3WriteFinish(PSSMHANDLE pSSM);
302	static int ssmR3Write(PSSMHANDLE pSSM, const void *pvBuf, size_t cbBuf);
303	static DECLCALLBACK(int) ssmR3WriteOut(void pvSSM, const void pvBuf, size_t cbBuf);
304	static void ssmR3ReadFinish(PSSMHANDLE pSSM);
305	static int ssmR3Read(PSSMHANDLE pSSM, void *pvBuf, size_t cbBuf);
306	static DECLCALLBACK(int) ssmR3ReadIn(void pvSSM, void pvBuf, size_t cbBuf, size_t *pcbRead);
307
308
309	/**
310	* Performs lazy initialization of the SSM.
311	*
312	* @returns VBox status code.
313	* @param pVM The VM.
314	*/
315	static int ssmR3LazyInit(PVM pVM)
316	{
317	/*
318	* Register a saved state unit which we use to put the VirtualBox version,
319	* revision and similar stuff in.
320	*/
321	pVM->ssm.s.fInitialized = true;
322	int rc = SSMR3RegisterInternal(pVM, "SSM", 0 /u32Instance/, 1/u32Version/, 64 /cbGuess/,
323	NULL /pfnSavePrep/, ssmR3SelfSaveExec, NULL /pfnSaveDone/,
324	NULL /pfnSavePrep/, ssmR3SelfLoadExec, NULL /pfnSaveDone/);
325	pVM->ssm.s.fInitialized = RT_SUCCESS(rc);
326	return rc;
327	}
328
329
330	/**
331	* For saving usful things without having to go thru the tedious process of
332	* adding it to the header.
333	*
334	* @returns VBox status code.
335	* @param pVM Pointer to the shared VM structure.
336	* @param pSSM The SSM handle.
337	*/
338	static DECLCALLBACK(int) ssmR3SelfSaveExec(PVM pVM, PSSMHANDLE pSSM)
339	{
340	/*
341	* String table containg pairs of variable and value string.
342	* Terminated by two empty strings.
343	*/
344	#ifdef VBOX_OSE
345	SSMR3PutStrZ(pSSM, "OSE");
346	SSMR3PutStrZ(pSSM, "true");
347	#endif
348
349	/* terminator */
350	SSMR3PutStrZ(pSSM, "");
351	return SSMR3PutStrZ(pSSM, "");
352	}
353
354
355	/**
356	* For load the version + revision and stuff.
357	*
358	* @returns VBox status code.
359	* @param pVM Pointer to the shared VM structure.
360	* @param pSSM The SSM handle.
361	* @param u32Version The version (1).
362	*/
363	static DECLCALLBACK(int) ssmR3SelfLoadExec(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
364	{
365	AssertLogRelMsgReturn(u32Version == 1, ("%d", u32Version), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
366
367	/*
368	* String table containg pairs of variable and value string.
369	* Terminated by two empty strings.
370	*/
371	for (unsigned i = 0; ; i++)
372	{
373	char szVar[128];
374	char szValue[1024];
375	int rc = SSMR3GetStrZ(pSSM, szVar, sizeof(szVar));
376	AssertRCReturn(rc, rc);
377	rc = SSMR3GetStrZ(pSSM, szValue, sizeof(szValue));
378	AssertRCReturn(rc, rc);
379	if (!szVar[0] && !szValue[0])
380	break;
381	if (i == 0)
382	LogRel(("SSM: Saved state info:\n"));
383	LogRel(("SSM: %s: %s\n", szVar, szValue));
384	}
385	return VINF_SUCCESS;
386	}
387
388
389	/**
390	* Internal registration worker.
391	*
392	* @returns VBox status code.
393	* @param pVM The VM handle.
394	* @param pszName Data unit name.
395	* @param u32Instance The instance id.
396	* @param u32Version The data unit version.
397	* @param cbGuess The guessed data unit size.
398	* @param ppUnit Where to store the insterted unit node.
399	* Caller must fill in the missing details.
400	*/
401	static int ssmR3Register(PVM pVM, const char pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess, PSSMUNIT ppUnit)
402	{
403	/*
404	* Lazy init.
405	*/
406	if (!pVM->ssm.s.fInitialized)
407	{
408	int rc = ssmR3LazyInit(pVM);
409	AssertRCReturn(rc, rc);
410	}
411
412	/*
413	* Walk to the end of the list checking for duplicates as we go.
414	*/
415	size_t cchName = strlen(pszName);
416	PSSMUNIT pUnitPrev = NULL;
417	PSSMUNIT pUnit = pVM->ssm.s.pHead;
418	while (pUnit)
419	{
420	if ( pUnit->u32Instance == u32Instance
421	&& pUnit->cchName == cchName
422	&& !memcmp(pUnit->szName, pszName, cchName))
423	{
424	AssertMsgFailed(("Duplicate registration %s\n", pszName));
425	return VERR_SSM_UNIT_EXISTS;
426	}
427	/* next */
428	pUnitPrev = pUnit;
429	pUnit = pUnit->pNext;
430	}
431
432	/*
433	* Allocate new node.
434	*/
435	pUnit = (PSSMUNIT)MMR3HeapAllocZ(pVM, MM_TAG_SSM, RT_OFFSETOF(SSMUNIT, szName[cchName + 1]));
436	if (!pUnit)
437	return VERR_NO_MEMORY;
438
439	/*
440	* Fill in (some) data. (Stuff is zero'ed.)
441	*/
442	pUnit->u32Version = u32Version;
443	pUnit->u32Instance = u32Instance;
444	pUnit->cbGuess = cbGuess;
445	pUnit->cchName = cchName;
446	memcpy(pUnit->szName, pszName, cchName);
447
448	/*
449	* Insert
450	*/
451	if (pUnitPrev)
452	pUnitPrev->pNext = pUnit;
453	else
454	pVM->ssm.s.pHead = pUnit;
455
456	*ppUnit = pUnit;
457	return VINF_SUCCESS;
458	}
459
460
461	/**
462	* Register a PDM Devices data unit.
463	*
464	* @returns VBox status.
465	*
466	* @param pVM The VM handle.
467	* @param pDevIns Device instance.
468	* @param pszName Data unit name.
469	* @param u32Instance The instance identifier of the data unit.
470	* This must together with the name be unique.
471	* @param u32Version Data layout version number.
472	* @param cbGuess The approximate amount of data in the unit.
473	* Only for progress indicators.
474	* @param pfnSavePrep Prepare save callback, optional.
475	* @param pfnSaveExec Execute save callback, optional.
476	* @param pfnSaveDone Done save callback, optional.
477	* @param pfnLoadPrep Prepare load callback, optional.
478	* @param pfnLoadExec Execute load callback, optional.
479	* @param pfnLoadDone Done load callback, optional.
480	*/
481	VMMR3DECL(int) SSMR3RegisterDevice(PVM pVM, PPDMDEVINS pDevIns, const char *pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess,
482	PFNSSMDEVSAVEPREP pfnSavePrep, PFNSSMDEVSAVEEXEC pfnSaveExec, PFNSSMDEVSAVEDONE pfnSaveDone,
483	PFNSSMDEVLOADPREP pfnLoadPrep, PFNSSMDEVLOADEXEC pfnLoadExec, PFNSSMDEVLOADDONE pfnLoadDone)
484	{
485	PSSMUNIT pUnit;
486	int rc = ssmR3Register(pVM, pszName, u32Instance, u32Version, cbGuess, &pUnit);
487	if (RT_SUCCESS(rc))
488	{
489	pUnit->enmType = SSMUNITTYPE_DEV;
490	pUnit->u.Dev.pfnSavePrep = pfnSavePrep;
491	pUnit->u.Dev.pfnSaveExec = pfnSaveExec;
492	pUnit->u.Dev.pfnSaveDone = pfnSaveDone;
493	pUnit->u.Dev.pfnLoadPrep = pfnLoadPrep;
494	pUnit->u.Dev.pfnLoadExec = pfnLoadExec;
495	pUnit->u.Dev.pfnLoadDone = pfnLoadDone;
496	pUnit->u.Dev.pDevIns = pDevIns;
497	}
498	return rc;
499	}
500
501
502	/**
503	* Register a PDM driver data unit.
504	*
505	* @returns VBox status.
506	*
507	* @param pVM The VM handle.
508	* @param pDrvIns Driver instance.
509	* @param pszName Data unit name.
510	* @param u32Instance The instance identifier of the data unit.
511	* This must together with the name be unique.
512	* @param u32Version Data layout version number.
513	* @param cbGuess The approximate amount of data in the unit.
514	* Only for progress indicators.
515	* @param pfnSavePrep Prepare save callback, optional.
516	* @param pfnSaveExec Execute save callback, optional.
517	* @param pfnSaveDone Done save callback, optional.
518	* @param pfnLoadPrep Prepare load callback, optional.
519	* @param pfnLoadExec Execute load callback, optional.
520	* @param pfnLoadDone Done load callback, optional.
521	*/
522	VMMR3DECL(int) SSMR3RegisterDriver(PVM pVM, PPDMDRVINS pDrvIns, const char *pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess,
523	PFNSSMDRVSAVEPREP pfnSavePrep, PFNSSMDRVSAVEEXEC pfnSaveExec, PFNSSMDRVSAVEDONE pfnSaveDone,
524	PFNSSMDRVLOADPREP pfnLoadPrep, PFNSSMDRVLOADEXEC pfnLoadExec, PFNSSMDRVLOADDONE pfnLoadDone)
525	{
526	PSSMUNIT pUnit;
527	int rc = ssmR3Register(pVM, pszName, u32Instance, u32Version, cbGuess, &pUnit);
528	if (RT_SUCCESS(rc))
529	{
530	pUnit->enmType = SSMUNITTYPE_DRV;
531	pUnit->u.Drv.pfnSavePrep = pfnSavePrep;
532	pUnit->u.Drv.pfnSaveExec = pfnSaveExec;
533	pUnit->u.Drv.pfnSaveDone = pfnSaveDone;
534	pUnit->u.Drv.pfnLoadPrep = pfnLoadPrep;
535	pUnit->u.Drv.pfnLoadExec = pfnLoadExec;
536	pUnit->u.Drv.pfnLoadDone = pfnLoadDone;
537	pUnit->u.Drv.pDrvIns = pDrvIns;
538	}
539	return rc;
540	}
541
542
543	/**
544	* Register a internal data unit.
545	*
546	* @returns VBox status.
547	*
548	* @param pVM The VM handle.
549	* @param pszName Data unit name.
550	* @param u32Instance The instance identifier of the data unit.
551	* This must together with the name be unique.
552	* @param u32Version Data layout version number.
553	* @param cbGuess The approximate amount of data in the unit.
554	* Only for progress indicators.
555	* @param pfnSavePrep Prepare save callback, optional.
556	* @param pfnSaveExec Execute save callback, optional.
557	* @param pfnSaveDone Done save callback, optional.
558	* @param pfnLoadPrep Prepare load callback, optional.
559	* @param pfnLoadExec Execute load callback, optional.
560	* @param pfnLoadDone Done load callback, optional.
561	*/
562	VMMR3DECL(int) SSMR3RegisterInternal(PVM pVM, const char *pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess,
563	PFNSSMINTSAVEPREP pfnSavePrep, PFNSSMINTSAVEEXEC pfnSaveExec, PFNSSMINTSAVEDONE pfnSaveDone,
564	PFNSSMINTLOADPREP pfnLoadPrep, PFNSSMINTLOADEXEC pfnLoadExec, PFNSSMINTLOADDONE pfnLoadDone)
565	{
566	PSSMUNIT pUnit;
567	int rc = ssmR3Register(pVM, pszName, u32Instance, u32Version, cbGuess, &pUnit);
568	if (RT_SUCCESS(rc))
569	{
570	pUnit->enmType = SSMUNITTYPE_INTERNAL;
571	pUnit->u.Internal.pfnSavePrep = pfnSavePrep;
572	pUnit->u.Internal.pfnSaveExec = pfnSaveExec;
573	pUnit->u.Internal.pfnSaveDone = pfnSaveDone;
574	pUnit->u.Internal.pfnLoadPrep = pfnLoadPrep;
575	pUnit->u.Internal.pfnLoadExec = pfnLoadExec;
576	pUnit->u.Internal.pfnLoadDone = pfnLoadDone;
577	}
578	return rc;
579	}
580
581
582	/**
583	* Register an external data unit.
584	*
585	* @returns VBox status.
586	*
587	* @param pVM The VM handle.
588	* @param pszName Data unit name.
589	* @param u32Instance The instance identifier of the data unit.
590	* This must together with the name be unique.
591	* @param u32Version Data layout version number.
592	* @param cbGuess The approximate amount of data in the unit.
593	* Only for progress indicators.
594	* @param pfnSavePrep Prepare save callback, optional.
595	* @param pfnSaveExec Execute save callback, optional.
596	* @param pfnSaveDone Done save callback, optional.
597	* @param pfnLoadPrep Prepare load callback, optional.
598	* @param pfnLoadExec Execute load callback, optional.
599	* @param pfnLoadDone Done load callback, optional.
600	* @param pvUser User argument.
601	*/
602	VMMR3DECL(int) SSMR3RegisterExternal(PVM pVM, const char *pszName, uint32_t u32Instance, uint32_t u32Version, size_t cbGuess,
603	PFNSSMEXTSAVEPREP pfnSavePrep, PFNSSMEXTSAVEEXEC pfnSaveExec, PFNSSMEXTSAVEDONE pfnSaveDone,
604	PFNSSMEXTLOADPREP pfnLoadPrep, PFNSSMEXTLOADEXEC pfnLoadExec, PFNSSMEXTLOADDONE pfnLoadDone, void *pvUser)
605	{
606	PSSMUNIT pUnit;
607	int rc = ssmR3Register(pVM, pszName, u32Instance, u32Version, cbGuess, &pUnit);
608	if (RT_SUCCESS(rc))
609	{
610	pUnit->enmType = SSMUNITTYPE_EXTERNAL;
611	pUnit->u.External.pfnSavePrep = pfnSavePrep;
612	pUnit->u.External.pfnSaveExec = pfnSaveExec;
613	pUnit->u.External.pfnSaveDone = pfnSaveDone;
614	pUnit->u.External.pfnLoadPrep = pfnLoadPrep;
615	pUnit->u.External.pfnLoadExec = pfnLoadExec;
616	pUnit->u.External.pfnLoadDone = pfnLoadDone;
617	pUnit->u.External.pvUser = pvUser;
618	}
619	return rc;
620	}
621
622
623	/**
624	* Deregister one or more PDM Device data units.
625	*
626	* @returns VBox status.
627	*
628	* @param pVM The VM handle.
629	* @param pDevIns Device instance.
630	* @param pszName Data unit name.
631	* Use NULL to deregister all data units for that device instance.
632	* @param u32Instance The instance identifier of the data unit.
633	* This must together with the name be unique.
634	* @remark Only for dynmaic data units and dynamic unloaded modules.
635	*/
636	VMMR3DECL(int) SSMR3DeregisterDevice(PVM pVM, PPDMDEVINS pDevIns, const char *pszName, uint32_t u32Instance)
637	{
638	/*
639	* Validate input.
640	*/
641	if (!pDevIns)
642	{
643	AssertMsgFailed(("pDevIns is NULL!\n"));
644	return VERR_INVALID_PARAMETER;
645	}
646
647	/*
648	* Search the list.
649	*/
650	size_t cchName = pszName ? strlen(pszName) : 0;
651	int rc = pszName ? VERR_SSM_UNIT_NOT_FOUND : VINF_SUCCESS;
652	PSSMUNIT pUnitPrev = NULL;
653	PSSMUNIT pUnit = pVM->ssm.s.pHead;
654	while (pUnit)
655	{
656	if ( pUnit->enmType == SSMUNITTYPE_DEV
657	&& ( !pszName
658	\|\| ( pUnit->cchName == cchName
659	&& !memcmp(pUnit->szName, pszName, cchName)))
660	&& pUnit->u32Instance == u32Instance
661	)
662	{
663	if (pUnit->u.Dev.pDevIns == pDevIns)
664	{
665	/*
666	* Unlink it, advance pointer, and free the node.
667	*/
668	PSSMUNIT pFree = pUnit;
669	pUnit = pUnit->pNext;
670	if (pUnitPrev)
671	pUnitPrev->pNext = pUnit;
672	else
673	pVM->ssm.s.pHead = pUnit;
674	Log(("SSM: Removed data unit '%s' (pdm dev).\n", pFree->szName));
675	MMR3HeapFree(pFree);
676	if (pszName)
677	return VINF_SUCCESS;
678	rc = VINF_SUCCESS;
679	continue;
680	}
681	else if (pszName)
682	{
683	AssertMsgFailed(("Caller is not owner! Owner=%p Caller=%p %s\n",
684	pUnit->u.Dev.pDevIns, pDevIns, pszName));
685	return VERR_SSM_UNIT_NOT_OWNER;
686	}
687	}
688
689	/* next */
690	pUnitPrev = pUnit;
691	pUnit = pUnit->pNext;
692	}
693
694	return rc;
695	}
696
697
698	/**
699	* Deregister one ore more PDM Driver data units.
700	*
701	* @returns VBox status.
702	* @param pVM The VM handle.
703	* @param pDrvIns Driver instance.
704	* @param pszName Data unit name.
705	* Use NULL to deregister all data units for that driver instance.
706	* @param u32Instance The instance identifier of the data unit.
707	* This must together with the name be unique. Ignored if pszName is NULL.
708	* @remark Only for dynmaic data units and dynamic unloaded modules.
709	*/
710	VMMR3DECL(int) SSMR3DeregisterDriver(PVM pVM, PPDMDRVINS pDrvIns, const char *pszName, uint32_t u32Instance)
711	{
712	/*
713	* Validate input.
714	*/
715	if (!pDrvIns)
716	{
717	AssertMsgFailed(("pDrvIns is NULL!\n"));
718	return VERR_INVALID_PARAMETER;
719	}
720
721	/*
722	* Search the list.
723	*/
724	size_t cchName = pszName ? strlen(pszName) : 0;
725	int rc = pszName ? VERR_SSM_UNIT_NOT_FOUND : VINF_SUCCESS;
726	PSSMUNIT pUnitPrev = NULL;
727	PSSMUNIT pUnit = pVM->ssm.s.pHead;
728	while (pUnit)
729	{
730	if ( pUnit->enmType == SSMUNITTYPE_DRV
731	&& ( !pszName
732	\|\| ( pUnit->cchName == cchName
733	&& !memcmp(pUnit->szName, pszName, cchName)
734	&& pUnit->u32Instance == u32Instance))
735	)
736	{
737	if (pUnit->u.Drv.pDrvIns == pDrvIns)
738	{
739	/*
740	* Unlink it, advance pointer, and free the node.
741	*/
742	PSSMUNIT pFree = pUnit;
743	pUnit = pUnit->pNext;
744	if (pUnitPrev)
745	pUnitPrev->pNext = pUnit;
746	else
747	pVM->ssm.s.pHead = pUnit;
748	Log(("SSM: Removed data unit '%s' (pdm drv).\n", pFree->szName));
749	MMR3HeapFree(pFree);
750	if (pszName)
751	return VINF_SUCCESS;
752	rc = VINF_SUCCESS;
753	continue;
754	}
755	else if (pszName)
756	{
757	AssertMsgFailed(("Caller is not owner! Owner=%p Caller=%p %s\n",
758	pUnit->u.Drv.pDrvIns, pDrvIns, pszName));
759	return VERR_SSM_UNIT_NOT_OWNER;
760	}
761	}
762
763	/* next */
764	pUnitPrev = pUnit;
765	pUnit = pUnit->pNext;
766	}
767
768	return rc;
769	}
770
771
772	/**
773	* Deregister a data unit.
774	*
775	* @returns VBox status.
776	* @param pVM The VM handle.
777	* @param enmType Unit type
778	* @param pszName Data unit name.
779	* @remark Only for dynmaic data units.
780	*/
781	static int ssmR3DeregisterByNameAndType(PVM pVM, const char *pszName, SSMUNITTYPE enmType)
782	{
783	/*
784	* Validate input.
785	*/
786	if (!pszName)
787	{
788	AssertMsgFailed(("pszName is NULL!\n"));
789	return VERR_INVALID_PARAMETER;
790	}
791
792	/*
793	* Search the list.
794	*/
795	size_t cchName = strlen(pszName);
796	int rc = VERR_SSM_UNIT_NOT_FOUND;
797	PSSMUNIT pUnitPrev = NULL;
798	PSSMUNIT pUnit = pVM->ssm.s.pHead;
799	while (pUnit)
800	{
801	if ( pUnit->enmType == enmType
802	&& pUnit->cchName == cchName
803	&& !memcmp(pUnit->szName, pszName, cchName))
804	{
805	/*
806	* Unlink it, advance pointer, and free the node.
807	*/
808	PSSMUNIT pFree = pUnit;
809	pUnit = pUnit->pNext;
810	if (pUnitPrev)
811	pUnitPrev->pNext = pUnit;
812	else
813	pVM->ssm.s.pHead = pUnit;
814	Log(("SSM: Removed data unit '%s' (type=%d).\n", pFree->szName, enmType));
815	MMR3HeapFree(pFree);
816	return VINF_SUCCESS;
817	}
818
819	/* next */
820	pUnitPrev = pUnit;
821	pUnit = pUnit->pNext;
822	}
823
824	return rc;
825	}
826
827
828	/**
829	* Deregister an internal data unit.
830	*
831	* @returns VBox status.
832	* @param pVM The VM handle.
833	* @param pszName Data unit name.
834	* @remark Only for dynmaic data units.
835	*/
836	VMMR3DECL(int) SSMR3DeregisterInternal(PVM pVM, const char *pszName)
837	{
838	return ssmR3DeregisterByNameAndType(pVM, pszName, SSMUNITTYPE_INTERNAL);
839	}
840
841
842	/**
843	* Deregister an external data unit.
844	*
845	* @returns VBox status.
846	* @param pVM The VM handle.
847	* @param pszName Data unit name.
848	* @remark Only for dynmaic data units.
849	*/
850	VMMR3DECL(int) SSMR3DeregisterExternal(PVM pVM, const char *pszName)
851	{
852	return ssmR3DeregisterByNameAndType(pVM, pszName, SSMUNITTYPE_EXTERNAL);
853	}
854
855
856	/**
857	* Calculate the checksum of a file portion.
858	*
859	* The current implementation is a cut&past of the libkern/crc32.c file from FreeBSD.
860	*
861	* @returns VBox status.
862	* @param File Handle to the file.
863	* @param cbFile Size of the file.
864	* @param pu32CRC Where to store the calculated checksum.
865	*/
866	static int ssmR3CalcChecksum(RTFILE File, uint64_t cbFile, uint32_t *pu32CRC)
867	{
868	/*
869	* Allocate a buffer.
870	*/
871	void pvBuf = RTMemTmpAlloc(321024);
872	if (!pvBuf)
873	return VERR_NO_TMP_MEMORY;
874
875	/*
876	* Loop reading and calculating CRC32.
877	*/
878	int rc = VINF_SUCCESS;
879	uint32_t u32CRC = RTCrc32Start();
880	while (cbFile)
881	{
882	/* read chunk */
883	register unsigned cbToRead = 32*1024;
884	if (cbFile < 32*1024)
885	cbToRead = (unsigned)cbFile;
886	rc = RTFileRead(File, pvBuf, cbToRead, NULL);
887	if (RT_FAILURE(rc))
888	{
889	AssertMsgFailed(("Failed with rc=%Rrc while calculating crc.\n", rc));
890	RTMemTmpFree(pvBuf);
891	return rc;
892	}
893
894	/* update total */
895	cbFile -= cbToRead;
896
897	/* calc crc32. */
898	u32CRC = RTCrc32Process(u32CRC, pvBuf, cbToRead);
899	}
900	RTMemTmpFree(pvBuf);
901
902	/* store the calculated crc */
903	u32CRC = RTCrc32Finish(u32CRC);
904	Log(("SSM: u32CRC=0x%08x\n", u32CRC));
905	*pu32CRC = u32CRC;
906
907	return VINF_SUCCESS;
908	}
909
910
911	/**
912	* Works the progress calculation.
913	*
914	* @param pSSM The SSM handle.
915	* @param cbAdvance Number of bytes to advance
916	*/
917	static void ssmR3Progress(PSSMHANDLE pSSM, uint64_t cbAdvance)
918	{
919	/* Can't advance it beyond the estimated end of the unit. */
920	uint64_t cbLeft = pSSM->offEstUnitEnd - pSSM->offEst;
921	if (cbAdvance > cbLeft)
922	cbAdvance = cbLeft;
923	pSSM->offEst += cbAdvance;
924
925	/* uPercentPrepare% prepare, xx% exec, uPercentDone% done+crc */
926	while (pSSM->offEst >= pSSM->offEstProgress && pSSM->uPercent <= 100-pSSM->uPercentDone)
927	{
928	if (pSSM->pfnProgress)
929	pSSM->pfnProgress(pSSM->pVM, pSSM->uPercent, pSSM->pvUser);
930	pSSM->uPercent++;
931	pSSM->offEstProgress = (pSSM->uPercent - pSSM->uPercentPrepare) * pSSM->cbEstTotal
932	/ (100 - pSSM->uPercentDone - pSSM->uPercentPrepare);
933	}
934	}
935
936
937	/**
938	* Start VM save operation.
939	*
940	* @returns VBox status.
941	*
942	* @param pVM The VM handle.
943	* @param pszFilename Name of the file to save the state in.
944	* @param enmAfter What is planned after a successful save operation.
945	* @param pfnProgress Progress callback. Optional.
946	* @param pvUser User argument for the progress callback.
947	*
948	* @thread EMT
949	*/
950	VMMR3DECL(int) SSMR3Save(PVM pVM, const char pszFilename, SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvUser)
951	{
952	LogFlow(("SSMR3Save: pszFilename=%p:{%s} enmAfter=%d pfnProgress=%p pvUser=%p\n", pszFilename, pszFilename, enmAfter, pfnProgress, pvUser));
953	VM_ASSERT_EMT(pVM);
954
955	/*
956	* Validate input.
957	*/
958	if ( enmAfter != SSMAFTER_DESTROY
959	&& enmAfter != SSMAFTER_CONTINUE)
960	{
961	AssertMsgFailed(("Invalid enmAfter=%d!\n", enmAfter));
962	return VERR_INVALID_PARAMETER;
963	}
964
965	/*
966	* Create the handle and try open the file.
967	*
968	* Note that there might be quite some work to do after executing the saving,
969	* so we reserve 20% for the 'Done' period. The checksumming and closing of
970	* the saved state file might take a long time.
971	*/
972	SSMHANDLE Handle = {0};
973	Handle.File = NIL_RTFILE;
974	Handle.pVM = pVM;
975	Handle.cbFileHdr = sizeof(SSMFILEHDR);
976	Handle.enmOp = SSMSTATE_INVALID;
977	Handle.enmAfter = enmAfter;
978	Handle.rc = VINF_SUCCESS;
979	Handle.pZipComp = NULL;
980	Handle.pZipDecomp = NULL;
981	Handle.pfnProgress = pfnProgress;
982	Handle.pvUser = pvUser;
983	Handle.uPercent = 0;
984	Handle.offEstProgress = 0;
985	Handle.cbEstTotal = 0;
986	Handle.offEst = 0;
987	Handle.offEstUnitEnd = 0;
988	Handle.uPercentPrepare = 20;
989	Handle.uPercentDone = 2;
990	Handle.cbGCPhys = sizeof(RTGCPHYS);
991	Handle.cbGCPtr = sizeof(RTGCPTR);
992	Handle.fFixedGCPtrSize = true;
993
994	int rc = RTFileOpen(&Handle.File, pszFilename, RTFILE_O_READWRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_WRITE);
995	if (RT_FAILURE(rc))
996	{
997	LogRel(("SSM: Failed to create save state file '%s', rc=%Rrc.\n", pszFilename, rc));
998	return rc;
999	}
1000
1001	Log(("SSM: Starting state save to file '%s'...\n", pszFilename));
1002
1003	/*
1004	* Write header.
1005	*/
1006	SSMFILEHDR Hdr =
1007	{
1008	/* .achMagic[32] = */ SSMFILEHDR_MAGIC_V1_2,
1009	/* .cbFile = */ 0,
1010	/* .u32CRC = */ 0,
1011	/* .u32Reserved = */ 0,
1012	/* .MachineUuid = */ {{0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0}},
1013	/* .u16VerMajor = */ VBOX_VERSION_MAJOR,
1014	/* .u16VerMinor = */ VBOX_VERSION_MINOR,
1015	/* .u32VerBuild = */ VBOX_VERSION_BUILD,
1016	/* .u32SvnRev = */ VMMGetSvnRev(),
1017	/* .cHostBits = */ HC_ARCH_BITS,
1018	/* .cbGCPhys = */ sizeof(RTGCPHYS),
1019	/* .cbGCPtr = */ sizeof(RTGCPTR),
1020	/* .au8Reserved = */ 0
1021	};
1022	rc = RTFileWrite(Handle.File, &Hdr, sizeof(Hdr), NULL);
1023	if (RT_SUCCESS(rc))
1024	{
1025	/*
1026	* Clear the per unit flags.
1027	*/
1028	PSSMUNIT pUnit;
1029	for (pUnit = pVM->ssm.s.pHead; pUnit; pUnit = pUnit->pNext)
1030	pUnit->fCalled = false;
1031
1032	/*
1033	* Do the prepare run.
1034	*/
1035	Handle.rc = VINF_SUCCESS;
1036	Handle.enmOp = SSMSTATE_SAVE_PREP;
1037	for (pUnit = pVM->ssm.s.pHead; pUnit; pUnit = pUnit->pNext)
1038	{
1039	switch (pUnit->enmType)
1040	{
1041	case SSMUNITTYPE_DEV:
1042	if (pUnit->u.Dev.pfnSavePrep)
1043	{
1044	rc = pUnit->u.Dev.pfnSavePrep(pUnit->u.Dev.pDevIns, &Handle);
1045	pUnit->fCalled = true;
1046	}
1047	break;
1048	case SSMUNITTYPE_DRV:
1049	if (pUnit->u.Drv.pfnSavePrep)
1050	{
1051	rc = pUnit->u.Drv.pfnSavePrep(pUnit->u.Drv.pDrvIns, &Handle);
1052	pUnit->fCalled = true;
1053	}
1054	break;
1055	case SSMUNITTYPE_INTERNAL:
1056	if (pUnit->u.Internal.pfnSavePrep)
1057	{
1058	rc = pUnit->u.Internal.pfnSavePrep(pVM, &Handle);
1059	pUnit->fCalled = true;
1060	}
1061	break;
1062	case SSMUNITTYPE_EXTERNAL:
1063	if (pUnit->u.External.pfnSavePrep)
1064	{
1065	rc = pUnit->u.External.pfnSavePrep(&Handle, pUnit->u.External.pvUser);
1066	pUnit->fCalled = true;
1067	}
1068	break;
1069	}
1070	if (RT_FAILURE(rc))
1071	{
1072	LogRel(("SSM: Prepare save failed with rc=%Rrc for data unit '%s.\n", rc, pUnit->szName));
1073	break;
1074	}
1075
1076	Handle.cbEstTotal += pUnit->cbGuess;
1077	}
1078
1079	/* Progress. */
1080	if (pfnProgress)
1081	pfnProgress(pVM, Handle.uPercentPrepare-1, pvUser);
1082	Handle.uPercent = Handle.uPercentPrepare;
1083
1084	/*
1085	* Do the execute run.
1086	*/
1087	if (RT_SUCCESS(rc))
1088	{
1089	Handle.enmOp = SSMSTATE_SAVE_EXEC;
1090	for (pUnit = pVM->ssm.s.pHead; pUnit; pUnit = pUnit->pNext)
1091	{
1092	/*
1093	* Estimate.
1094	*/
1095	ssmR3Progress(&Handle, Handle.offEstUnitEnd - Handle.offEst);
1096	Handle.offEstUnitEnd += pUnit->cbGuess;
1097
1098	/*
1099	* Does this unit have a callback? If, not skip it.
1100	*/
1101	bool fSkip;
1102	switch (pUnit->enmType)
1103	{
1104	case SSMUNITTYPE_DEV: fSkip = pUnit->u.Dev.pfnSaveExec == NULL; break;
1105	case SSMUNITTYPE_DRV: fSkip = pUnit->u.Drv.pfnSaveExec == NULL; break;
1106	case SSMUNITTYPE_INTERNAL: fSkip = pUnit->u.Internal.pfnSaveExec == NULL; break;
1107	case SSMUNITTYPE_EXTERNAL: fSkip = pUnit->u.External.pfnSaveExec == NULL; break;
1108	default: fSkip = true; break;
1109	}
1110	if (fSkip)
1111	{
1112	pUnit->fCalled = true;
1113	continue;
1114	}
1115
1116	/*
1117	* Write data unit header
1118	*/
1119	uint64_t offHdr = RTFileTell(Handle.File);
1120	SSMFILEUNITHDR UnitHdr = { SSMFILEUNITHDR_MAGIC, 0, pUnit->u32Version, pUnit->u32Instance, (uint32_t)pUnit->cchName + 1, { '\0' } };
1121	rc = RTFileWrite(Handle.File, &UnitHdr, RT_OFFSETOF(SSMFILEUNITHDR, szName[0]), NULL);
1122	if (RT_SUCCESS(rc))
1123	{
1124	rc = RTFileWrite(Handle.File, &pUnit->szName[0], pUnit->cchName + 1, NULL);
1125	if (RT_SUCCESS(rc))
1126	{
1127	/*
1128	* Call the execute handler.
1129	*/
1130	switch (pUnit->enmType)
1131	{
1132	case SSMUNITTYPE_DEV:
1133	rc = pUnit->u.Dev.pfnSaveExec(pUnit->u.Dev.pDevIns, &Handle);
1134	break;
1135	case SSMUNITTYPE_DRV:
1136	rc = pUnit->u.Drv.pfnSaveExec(pUnit->u.Drv.pDrvIns, &Handle);
1137	break;
1138	case SSMUNITTYPE_INTERNAL:
1139	rc = pUnit->u.Internal.pfnSaveExec(pVM, &Handle);
1140	break;
1141	case SSMUNITTYPE_EXTERNAL:
1142	pUnit->u.External.pfnSaveExec(&Handle, pUnit->u.External.pvUser);
1143	rc = Handle.rc;
1144	break;
1145	}
1146	pUnit->fCalled = true;
1147	if (RT_FAILURE(Handle.rc) && RT_SUCCESS(rc))
1148	rc = Handle.rc;
1149	if (RT_SUCCESS(rc))
1150	{
1151	/*
1152	* Flush buffer / end compression stream.
1153	*/
1154	if (Handle.pZipComp)
1155	rc = ssmR3WriteFinish(&Handle);
1156	if (RT_SUCCESS(rc))
1157	{
1158	/*
1159	* Update header with correct length.
1160	*/
1161	uint64_t offEnd = RTFileTell(Handle.File);
1162	rc = RTFileSeek(Handle.File, offHdr, RTFILE_SEEK_BEGIN, NULL);
1163	if (RT_SUCCESS(rc))
1164	{
1165	UnitHdr.cbUnit = offEnd - offHdr;
1166	rc = RTFileWrite(Handle.File, &UnitHdr, RT_OFFSETOF(SSMFILEUNITHDR, szName[0]), NULL);
1167	if (RT_SUCCESS(rc))
1168	{
1169	rc = RTFileSeek(Handle.File, offEnd, RTFILE_SEEK_BEGIN, NULL);
1170	if (RT_SUCCESS(rc))
1171	Log(("SSM: Data unit: offset %#9llx size %9lld '%s'\n", offHdr, UnitHdr.cbUnit, pUnit->szName));
1172	}
1173	}
1174	}
1175	else
1176	{
1177	LogRel(("SSM: Failed ending compression stream. rc=%Rrc\n", rc));
1178	break;
1179	}
1180	}
1181	else
1182	{
1183	LogRel(("SSM: Execute save failed with rc=%Rrc for data unit '%s.\n", rc, pUnit->szName));
1184	break;
1185	}
1186	}
1187	}
1188	if (RT_FAILURE(rc))
1189	{
1190	LogRel(("SSM: Failed to write unit header. rc=%Rrc\n", rc));
1191	break;
1192	}
1193	} /* for each unit */
1194
1195	/* finish the progress. */
1196	if (RT_SUCCESS(rc))
1197	ssmR3Progress(&Handle, Handle.offEstUnitEnd - Handle.offEst);
1198	}
1199	/* (progress should be pending 99% now) */
1200	AssertMsg(RT_FAILURE(rc) \|\| Handle.uPercent == (101-Handle.uPercentDone), ("%d\n", Handle.uPercent));
1201
1202	/*
1203	* Do the done run.
1204	*/
1205	Handle.rc = rc;
1206	Handle.enmOp = SSMSTATE_SAVE_DONE;
1207	for (pUnit = pVM->ssm.s.pHead; pUnit; pUnit = pUnit->pNext)
1208	{
1209	switch (pUnit->enmType)
1210	{
1211	case SSMUNITTYPE_DEV:
1212	if ( pUnit->u.Dev.pfnSaveDone
1213	&& ( pUnit->fCalled
1214	\|\| (!pUnit->u.Dev.pfnSavePrep && !pUnit->u.Dev.pfnSaveExec)))
1215	rc = pUnit->u.Dev.pfnSaveDone(pUnit->u.Dev.pDevIns, &Handle);
1216	break;
1217	case SSMUNITTYPE_DRV:
1218	if ( pUnit->u.Drv.pfnSaveDone
1219	&& ( pUnit->fCalled
1220	\|\| (!pUnit->u.Drv.pfnSavePrep && !pUnit->u.Drv.pfnSaveExec)))
1221	rc = pUnit->u.Drv.pfnSaveDone(pUnit->u.Drv.pDrvIns, &Handle);
1222	break;
1223	case SSMUNITTYPE_INTERNAL:
1224	if ( pUnit->u.Internal.pfnSaveDone
1225	&& ( pUnit->fCalled
1226	\|\| (!pUnit->u.Internal.pfnSavePrep && !pUnit->u.Internal.pfnSaveExec)))
1227	rc = pUnit->u.Internal.pfnSaveDone(pVM, &Handle);
1228	break;
1229	case SSMUNITTYPE_EXTERNAL:
1230	if ( pUnit->u.External.pfnSaveDone
1231	&& ( pUnit->fCalled
1232	\|\| (!pUnit->u.External.pfnSavePrep && !pUnit->u.External.pfnSaveExec)))
1233	rc = pUnit->u.External.pfnSaveDone(&Handle, pUnit->u.External.pvUser);
1234	break;
1235	}
1236	if (RT_FAILURE(rc))
1237	{
1238	LogRel(("SSM: Done save failed with rc=%Rrc for data unit '%s.\n", rc, pUnit->szName));
1239	if (RT_SUCCESS(Handle.rc))
1240	Handle.rc = rc;
1241	}
1242	}
1243	rc = Handle.rc;
1244
1245	/*
1246	* Finalize the file if successfully saved.
1247	*/
1248	if (RT_SUCCESS(rc))
1249	{
1250	/* end record */
1251	SSMFILEUNITHDR UnitHdr = { SSMFILEUNITHDR_END, RT_OFFSETOF(SSMFILEUNITHDR, szName[0]), 0, '\0'};
1252	rc = RTFileWrite(Handle.File, &UnitHdr, RT_OFFSETOF(SSMFILEUNITHDR, szName[0]), NULL);
1253	if (RT_SUCCESS(rc))
1254	{
1255	/* get size */
1256	Hdr.cbFile = RTFileTell(Handle.File);
1257	/* calc checksum */
1258	rc = RTFileSeek(Handle.File, RT_OFFSETOF(SSMFILEHDR, u32CRC) + sizeof(Hdr.u32CRC), RTFILE_SEEK_BEGIN, NULL);
1259	if (RT_SUCCESS(rc))
1260	rc = ssmR3CalcChecksum(Handle.File, Hdr.cbFile - sizeof(Hdr), &Hdr.u32CRC);
1261	if (RT_SUCCESS(rc))
1262	{
1263	if (pfnProgress)
1264	pfnProgress(pVM, 90, pvUser);
1265
1266	/*
1267	* Write the update the header to the file.
1268	*/
1269	rc = RTFileSeek(Handle.File, 0, RTFILE_SEEK_BEGIN, NULL);
1270	if (RT_SUCCESS(rc))
1271	rc = RTFileWrite(Handle.File, &Hdr, sizeof(Hdr), NULL);
1272	if (RT_SUCCESS(rc))
1273	{
1274	rc = RTFileClose(Handle.File);
1275	AssertRC(rc);
1276	if (pfnProgress)
1277	pfnProgress(pVM, 100, pvUser);
1278	Log(("SSM: Successfully saved the vm state to '%s'.\n", pszFilename));
1279	Log(("\n\n\n"));
1280	DBGFR3InfoLog(pVM, "cpum", "verbose");
1281	DBGFR3InfoLog(pVM, "timers", NULL);
1282	DBGFR3InfoLog(pVM, "activetimers", NULL);
1283	DBGFR3InfoLog(pVM, "ioport", NULL);
1284	DBGFR3InfoLog(pVM, "mmio", NULL);
1285	DBGFR3InfoLog(pVM, "phys", NULL);
1286	Log(("\n\n\n"));
1287	return VINF_SUCCESS;
1288	}
1289
1290	}
1291	}
1292	LogRel(("SSM: Failed to finalize state file! rc=%Rrc\n", pszFilename));
1293	}
1294	}
1295
1296	/*
1297	* Delete the file on failure and destroy any compressors.
1298	*/
1299	int rc2 = RTFileClose(Handle.File);
1300	AssertRC(rc2);
1301	rc2 = RTFileDelete(pszFilename);
1302	AssertRC(rc2);
1303	if (Handle.pZipComp)
1304	RTZipCompDestroy(Handle.pZipComp);
1305
1306	return rc;
1307	}
1308
1309
1310	/**
1311	* Validates the integrity of a saved state file.
1312	*
1313	* @returns VBox status.
1314	* @param File File to validate.
1315	* The file position is undefined on return.
1316	* @param pHdr Where to store the file header.
1317	* @param pcbFileHdr Where to store the file header size.
1318	*/
1319	static int ssmR3Validate(RTFILE File, PSSMFILEHDR pHdr, size_t *pcbFileHdr)
1320	{
1321	/*
1322	* Read the header.
1323	*/
1324	int rc = RTFileRead(File, pHdr, sizeof(*pHdr), NULL);
1325	if (RT_FAILURE(rc))
1326	{
1327	Log(("SSM: Failed to read file header. rc=%Rrc\n", rc));
1328	return rc;
1329	}
1330
1331	/*
1332	* Verify the magic and make adjustments for versions differences.
1333	*/
1334	if (memcmp(pHdr->achMagic, SSMFILEHDR_MAGIC_BASE, sizeof(SSMFILEHDR_MAGIC_BASE) - 1))
1335	{
1336	Log(("SSM: Not a saved state file. magic=%.*s\n", sizeof(pHdr->achMagic) - 1, pHdr->achMagic));
1337	return VERR_SSM_INTEGRITY_MAGIC;
1338	}
1339
1340	size_t offCrc32 = RT_OFFSETOF(SSMFILEHDR, u32CRC) + sizeof(pHdr->u32CRC);
1341	pcbFileHdr = sizeof(pHdr);
1342	if (!memcmp(pHdr->achMagic, SSMFILEHDR_MAGIC_V1_0, sizeof(SSMFILEHDR_MAGIC_V1_0)))
1343	{
1344	if (pHdr->MachineUuid.au32[3])
1345	{
1346	SSMFILEHDRV10X86 OldHdr;
1347	memcpy(&OldHdr, pHdr, sizeof(OldHdr));
1348	pHdr->cbFile = OldHdr.cbFile;
1349	pHdr->u32CRC = OldHdr.u32CRC;
1350	pHdr->u32Reserved = 0;
1351	pHdr->MachineUuid = OldHdr.MachineUuid;
1352	pHdr->cHostBits = 32;
1353
1354	offCrc32 = RT_OFFSETOF(SSMFILEHDRV10X86, u32CRC) + sizeof(pHdr->u32CRC);
1355	*pcbFileHdr = sizeof(OldHdr);
1356	}
1357	else
1358	{
1359	SSMFILEHDRV10AMD64 OldHdr;
1360	memcpy(&OldHdr, pHdr, sizeof(OldHdr));
1361	pHdr->cbFile = OldHdr.cbFile;
1362	pHdr->u32CRC = OldHdr.u32CRC;
1363	pHdr->u32Reserved = 0;
1364	pHdr->MachineUuid = OldHdr.MachineUuid;
1365	pHdr->cHostBits = 64;
1366
1367	offCrc32 = RT_OFFSETOF(SSMFILEHDRV10AMD64, u32CRC) + sizeof(pHdr->u32CRC);
1368	*pcbFileHdr = sizeof(OldHdr);
1369	}
1370	pHdr->u16VerMajor = 0;
1371	pHdr->u16VerMinor = 0;
1372	pHdr->u32VerBuild = 0;
1373	pHdr->u32SvnRev = 0;
1374	pHdr->cbGCPhys = sizeof(uint32_t);
1375	pHdr->cbGCPtr = sizeof(uint32_t);
1376	pHdr->au8Reserved = 0;
1377	}
1378	else if (!memcmp(pHdr->achMagic, SSMFILEHDR_MAGIC_V1_1, sizeof(SSMFILEHDR_MAGIC_V1_1)))
1379	{
1380	*pcbFileHdr = sizeof(SSMFILEHDRV11);
1381	pHdr->u16VerMajor = 0;
1382	pHdr->u16VerMinor = 0;
1383	pHdr->u32VerBuild = 0;
1384	pHdr->u32SvnRev = 0;
1385	pHdr->cHostBits = 0; /* unknown */
1386	pHdr->cbGCPhys = sizeof(RTGCPHYS);
1387	pHdr->cbGCPtr = 0; /* settable. */
1388	pHdr->au8Reserved = 0;
1389	}
1390	else if (!memcmp(pHdr->achMagic, SSMFILEHDR_MAGIC_V1_2, sizeof(pHdr->achMagic)))
1391	{
1392	if ( pHdr->u16VerMajor == 0
1393	\|\| pHdr->u16VerMajor > 1000
1394	\|\| pHdr->u32SvnRev == 0
1395	\|\| pHdr->u32SvnRev > 10000000 /100M/)
1396	{
1397	LogRel(("SSM: Incorrect version values: %d.%d.%d.r%d\n",
1398	pHdr->u16VerMajor, pHdr->u16VerMinor, pHdr->u32VerBuild, pHdr->u32SvnRev));
1399	return VERR_SSM_INTEGRITY_VBOX_VERSION;
1400	}
1401	if ( pHdr->cHostBits != 32
1402	&& pHdr->cHostBits != 64)
1403	{
1404	LogRel(("SSM: Incorrect cHostBits value: %d\n", pHdr->cHostBits));
1405	return VERR_SSM_INTEGRITY_SIZES;
1406	}
1407	if ( pHdr->cbGCPhys != sizeof(uint32_t)
1408	&& pHdr->cbGCPhys != sizeof(uint64_t))
1409	{
1410	LogRel(("SSM: Incorrect cbGCPhys value: %d\n", pHdr->cbGCPhys));
1411	return VERR_SSM_INTEGRITY_SIZES;
1412	}
1413	if ( pHdr->cbGCPtr != sizeof(uint32_t)
1414	&& pHdr->cbGCPtr != sizeof(uint64_t))
1415	{
1416	LogRel(("SSM: Incorrect cbGCPtr value: %d\n", pHdr->cbGCPtr));
1417	return VERR_SSM_INTEGRITY_SIZES;
1418	}
1419	}
1420	else
1421	{
1422	Log(("SSM: Unknown file format version. magic=%.*s\n", sizeof(pHdr->achMagic) - 1, pHdr->achMagic));
1423	return VERR_SSM_INTEGRITY_VERSION;
1424	}
1425
1426	/*
1427	* Verify the file size.
1428	*/
1429	uint64_t cbFile;
1430	rc = RTFileGetSize(File, &cbFile);
1431	if (RT_FAILURE(rc))
1432	{
1433	Log(("SSM: Failed to get file size. rc=%Rrc\n", rc));
1434	return rc;
1435	}
1436	if (cbFile != pHdr->cbFile)
1437	{
1438	Log(("SSM: File size mismatch. hdr.cbFile=%lld actual %lld\n", pHdr->cbFile, cbFile));
1439	return VERR_SSM_INTEGRITY_SIZE;
1440	}
1441
1442	/*
1443	* Verify the checksum.
1444	*/
1445	rc = RTFileSeek(File, offCrc32, RTFILE_SEEK_BEGIN, NULL);
1446	if (RT_FAILURE(rc))
1447	{
1448	Log(("SSM: Failed to seek to crc start. rc=%Rrc\n", rc));
1449	return rc;
1450	}
1451	uint32_t u32CRC;
1452	rc = ssmR3CalcChecksum(File, pHdr->cbFile - *pcbFileHdr, &u32CRC);
1453	if (RT_FAILURE(rc))
1454	return rc;
1455	if (u32CRC != pHdr->u32CRC)
1456	{
1457	Log(("SSM: Invalid CRC! Calculated %#08x, in header %#08x\n", u32CRC, pHdr->u32CRC));
1458	return VERR_SSM_INTEGRITY_CRC;
1459	}
1460
1461	/*
1462	* Verify Virtual Machine UUID.
1463	*/
1464	RTUUID Uuid;
1465	memset(&Uuid, 0, sizeof(Uuid));
1466	/** @todo get machine uuids CFGGetUuid(, &Uuid); */
1467	if ( RTUuidCompare(&pHdr->MachineUuid, &Uuid)
1468	&& !RTUuidIsNull(&pHdr->MachineUuid)) /* temporary hack, allowing NULL uuids. */
1469	{
1470	Log(("SSM: The UUID of the saved state doesn't match the running VM.\n"));
1471	return VERR_SMM_INTEGRITY_MACHINE;
1472	}
1473
1474	return VINF_SUCCESS;
1475	}
1476
1477
1478	/**
1479	* Find a data unit by name.
1480	*
1481	* @returns Pointer to the unit.
1482	* @returns NULL if not found.
1483	*
1484	* @param pVM VM handle.
1485	* @param pszName Data unit name.
1486	* @param u32Instance The data unit instance id.
1487	*/
1488	static PSSMUNIT ssmR3Find(PVM pVM, const char *pszName, uint32_t u32Instance)
1489	{
1490	size_t cchName = strlen(pszName);
1491	PSSMUNIT pUnit = pVM->ssm.s.pHead;
1492	while ( pUnit
1493	&& ( pUnit->u32Instance != u32Instance
1494	\|\| pUnit->cchName != cchName
1495	\|\| memcmp(pUnit->szName, pszName, cchName)))
1496	pUnit = pUnit->pNext;
1497	return pUnit;
1498	}
1499
1500
1501	/**
1502	* Load VM save operation.
1503	*
1504	* @returns VBox status.
1505	*
1506	* @param pVM The VM handle.
1507	* @param pszFilename Name of the file to save the state in.
1508	* @param enmAfter What is planned after a successful load operation.
1509	* Only acceptable values are SSMAFTER_RESUME and SSMAFTER_DEBUG_IT.
1510	* @param pfnProgress Progress callback. Optional.
1511	* @param pvUser User argument for the progress callback.
1512	*
1513	* @thread EMT
1514	*/
1515	VMMR3DECL(int) SSMR3Load(PVM pVM, const char pszFilename, SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvUser)
1516	{
1517	LogFlow(("SSMR3Load: pszFilename=%p:{%s} enmAfter=%d pfnProgress=%p pvUser=%p\n", pszFilename, pszFilename, enmAfter, pfnProgress, pvUser));
1518	VM_ASSERT_EMT(pVM);
1519
1520	/*
1521	* Validate input.
1522	*/
1523	if ( enmAfter != SSMAFTER_RESUME
1524	&& enmAfter != SSMAFTER_DEBUG_IT)
1525	{
1526	AssertMsgFailed(("Invalid enmAfter=%d!\n", enmAfter));
1527	return VERR_INVALID_PARAMETER;
1528	}
1529
1530	/*
1531	* Create the handle and open the file.
1532	* Note that we reserve 20% of the time on validating the image since this might
1533	* take a long time.
1534	*/
1535	SSMHANDLE Handle = {0};
1536	Handle.File = NIL_RTFILE;
1537	Handle.pVM = pVM;
1538	Handle.cbFileHdr = sizeof(SSMFILEHDR);
1539	Handle.enmOp = SSMSTATE_INVALID;
1540	Handle.enmAfter = enmAfter;
1541	Handle.rc = VINF_SUCCESS;
1542	Handle.pZipComp = NULL;
1543	Handle.pZipDecomp = NULL;
1544	Handle.pfnProgress = pfnProgress;
1545	Handle.pvUser = pvUser;
1546	Handle.uPercent = 0;
1547	Handle.offEstProgress = 0;
1548	Handle.cbEstTotal = 0;
1549	Handle.offEst = 0;
1550	Handle.offEstUnitEnd = 0;
1551	Handle.uPercentPrepare = 20;
1552	Handle.uPercentDone = 2;
1553	Handle.cbGCPhys = sizeof(RTGCPHYS);
1554	Handle.cbGCPtr = sizeof(RTGCPTR);
1555	Handle.fFixedGCPtrSize = false;
1556
1557	int rc = RTFileOpen(&Handle.File, pszFilename, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
1558	if (RT_FAILURE(rc))
1559	{
1560	Log(("SSM: Failed to open save state file '%s', rc=%Rrc.\n", pszFilename, rc));
1561	return rc;
1562	}
1563
1564	/*
1565	* Read file header and validate it.
1566	*/
1567	SSMFILEHDR Hdr;
1568	rc = ssmR3Validate(Handle.File, &Hdr, &Handle.cbFileHdr);
1569	if (RT_SUCCESS(rc))
1570	{
1571	if (Hdr.cbGCPhys)
1572	Handle.cbGCPhys = Hdr.cbGCPhys;
1573	if (Hdr.cbGCPtr)
1574	{
1575	Handle.cbGCPtr = Hdr.cbGCPtr;
1576	Handle.fFixedGCPtrSize = true;
1577	}
1578
1579	if (Handle.cbFileHdr == sizeof(Hdr))
1580	LogRel(("SSM: File header: Format %.4s, VirtualBox Version %u.%u.%u r%u, %u-bit host, cbGCPhys=%u, cbGCPtr=%u\n",
1581	&Hdr.achMagic[sizeof(SSMFILEHDR_MAGIC_BASE) - 1],
1582	Hdr.u16VerMajor, Hdr.u16VerMinor, Hdr.u32VerBuild, Hdr.u32SvnRev,
1583	Hdr.cHostBits, Hdr.cbGCPhys, Hdr.cbGCPtr));
1584	else
1585	LogRel(("SSM: File header: Format %.4s, %u-bit host, cbGCPhys=%u, cbGCPtr=%u\n" ,
1586	&Hdr.achMagic[sizeof(SSMFILEHDR_MAGIC_BASE)-1], Hdr.cHostBits, Hdr.cbGCPhys, Hdr.cbGCPtr));
1587
1588
1589	/*
1590	* Clear the per unit flags.
1591	*/
1592	PSSMUNIT pUnit;
1593	for (pUnit = pVM->ssm.s.pHead; pUnit; pUnit = pUnit->pNext)
1594	pUnit->fCalled = false;
1595
1596	/*
1597	* Do the prepare run.
1598	*/
1599	Handle.rc = VINF_SUCCESS;
1600	Handle.enmOp = SSMSTATE_LOAD_PREP;
1601	for (pUnit = pVM->ssm.s.pHead; pUnit; pUnit = pUnit->pNext)
1602	{
1603	switch (pUnit->enmType)
1604	{
1605	case SSMUNITTYPE_DEV:
1606	if (pUnit->u.Dev.pfnLoadPrep)
1607	{
1608	rc = pUnit->u.Dev.pfnLoadPrep(pUnit->u.Dev.pDevIns, &Handle);
1609	pUnit->fCalled = true;
1610	}
1611	break;
1612	case SSMUNITTYPE_DRV:
1613	if (pUnit->u.Drv.pfnLoadPrep)
1614	{
1615	rc = pUnit->u.Drv.pfnLoadPrep(pUnit->u.Drv.pDrvIns, &Handle);
1616	pUnit->fCalled = true;
1617	}
1618	break;
1619	case SSMUNITTYPE_INTERNAL:
1620	if (pUnit->u.Internal.pfnLoadPrep)
1621	{
1622	rc = pUnit->u.Internal.pfnLoadPrep(pVM, &Handle);
1623	pUnit->fCalled = true;
1624	}
1625	break;
1626	case SSMUNITTYPE_EXTERNAL:
1627	if (pUnit->u.External.pfnLoadPrep)
1628	{
1629	rc = pUnit->u.External.pfnLoadPrep(&Handle, pUnit->u.External.pvUser);
1630	pUnit->fCalled = true;
1631	}
1632	break;
1633	}
1634	if (RT_FAILURE(rc))
1635	{
1636	LogRel(("SSM: Prepare load failed with rc=%Rrc for data unit '%s.\n", rc, pUnit->szName));
1637	break;
1638	}
1639	}
1640
1641	/* pending 2% */
1642	if (pfnProgress)
1643	pfnProgress(pVM, Handle.uPercentPrepare-1, pvUser);
1644	Handle.uPercent = Handle.uPercentPrepare;
1645	Handle.cbEstTotal = Hdr.cbFile;
1646
1647	/*
1648	* Do the execute run.
1649	*/
1650	if (RT_SUCCESS(rc))
1651	rc = RTFileSeek(Handle.File, Handle.cbFileHdr, RTFILE_SEEK_BEGIN, NULL);
1652	if (RT_SUCCESS(rc))
1653	{
1654	char *pszName = NULL;
1655	size_t cchName = 0;
1656	Handle.enmOp = SSMSTATE_LOAD_EXEC;
1657	for (;;)
1658	{
1659	/*
1660	* Save the current file position and read the data unit header.
1661	*/
1662	uint64_t offUnit = RTFileTell(Handle.File);
1663	SSMFILEUNITHDR UnitHdr;
1664	rc = RTFileRead(Handle.File, &UnitHdr, RT_OFFSETOF(SSMFILEUNITHDR, szName), NULL);
1665	if (RT_SUCCESS(rc))
1666	{
1667	/*
1668	* Check the magic and see if it's valid and whether it is a end header or not.
1669	*/
1670	if (memcmp(&UnitHdr.achMagic[0], SSMFILEUNITHDR_MAGIC, sizeof(SSMFILEUNITHDR_MAGIC)))
1671	{
1672	if (!memcmp(&UnitHdr.achMagic[0], SSMFILEUNITHDR_END, sizeof(SSMFILEUNITHDR_END)))
1673	{
1674	Log(("SSM: EndOfFile: offset %#9llx size %9d\n", offUnit, UnitHdr.cbUnit));
1675	/* Complete the progress bar (pending 99% afterwards). */
1676	Handle.offEstUnitEnd = Handle.cbEstTotal;
1677	ssmR3Progress(&Handle, Handle.cbEstTotal - Handle.offEst);
1678	break;
1679	}
1680	LogRel(("SSM: Invalid unit magic at offset %#llx (%lld), '%.*s'!\n",
1681	offUnit, offUnit, sizeof(UnitHdr.achMagic) - 1, &UnitHdr.achMagic[0]));
1682	rc = VERR_SSM_INTEGRITY_UNIT_MAGIC;
1683	break;
1684	}
1685
1686	/*
1687	* Read the name.
1688	* Adjust the name buffer first.
1689	*/
1690	if (cchName < UnitHdr.cchName)
1691	{
1692	if (pszName)
1693	RTMemTmpFree(pszName);
1694	cchName = RT_ALIGN_Z(UnitHdr.cchName, 64);
1695	pszName = (char *)RTMemTmpAlloc(cchName);
1696	}
1697	if (pszName)
1698	{
1699	rc = RTFileRead(Handle.File, pszName, UnitHdr.cchName, NULL);
1700	if (RT_SUCCESS(rc))
1701	{
1702	if (!pszName[UnitHdr.cchName - 1])
1703	{
1704	Log(("SSM: Data unit: offset %#9llx size %9lld '%s'\n", offUnit, UnitHdr.cbUnit, pszName));
1705
1706	/*
1707	* Progress
1708	*/
1709	Handle.offEstUnitEnd += UnitHdr.cbUnit;
1710
1711	/*
1712	* Find the data unit in our internal table.
1713	*/
1714	pUnit = ssmR3Find(pVM, pszName, UnitHdr.u32Instance);
1715	if (pUnit)
1716	{
1717	/*
1718	* Call the execute handler.
1719	*/
1720	Handle.cbUnitLeft = UnitHdr.cbUnit - RT_OFFSETOF(SSMFILEUNITHDR, szName[UnitHdr.cchName]);
1721	switch (pUnit->enmType)
1722	{
1723	case SSMUNITTYPE_DEV:
1724	if (pUnit->u.Dev.pfnLoadExec)
1725	{
1726	rc = pUnit->u.Dev.pfnLoadExec(pUnit->u.Dev.pDevIns, &Handle, UnitHdr.u32Version);
1727	AssertRC(rc);
1728	}
1729	else
1730	rc = VERR_SSM_NO_LOAD_EXEC;
1731	break;
1732	case SSMUNITTYPE_DRV:
1733	if (pUnit->u.Drv.pfnLoadExec)
1734	{
1735	rc = pUnit->u.Drv.pfnLoadExec(pUnit->u.Drv.pDrvIns, &Handle, UnitHdr.u32Version);
1736	AssertRC(rc);
1737	}
1738	else
1739	rc = VERR_SSM_NO_LOAD_EXEC;
1740	break;
1741	case SSMUNITTYPE_INTERNAL:
1742	if (pUnit->u.Internal.pfnLoadExec)
1743	{
1744	rc = pUnit->u.Internal.pfnLoadExec(pVM, &Handle, UnitHdr.u32Version);
1745	AssertRC(rc);
1746	}
1747	else
1748	rc = VERR_SSM_NO_LOAD_EXEC;
1749	break;
1750	case SSMUNITTYPE_EXTERNAL:
1751	if (pUnit->u.External.pfnLoadExec)
1752	{
1753	rc = pUnit->u.External.pfnLoadExec(&Handle, pUnit->u.External.pvUser, UnitHdr.u32Version);
1754	if (!rc)
1755	rc = Handle.rc;
1756	}
1757	else
1758	rc = VERR_SSM_NO_LOAD_EXEC;
1759	break;
1760	}
1761	if (rc != VERR_SSM_NO_LOAD_EXEC)
1762	{
1763	/*
1764	* Close the reader stream.
1765	*/
1766	if (Handle.pZipDecomp)
1767	ssmR3ReadFinish(&Handle);
1768
1769	pUnit->fCalled = true;
1770	if (RT_SUCCESS(rc))
1771	rc = Handle.rc;
1772	if (RT_SUCCESS(rc))
1773	{
1774	/*
1775	* Now, we'll check the current position to see if all, or
1776	* more than all, the data was read.
1777	*
1778	* Note! Because of buffering / compression we'll only see the
1779	* really bad ones here.
1780	*/
1781	uint64_t off = RTFileTell(Handle.File);
1782	int64_t i64Diff = off - (offUnit + UnitHdr.cbUnit);
1783	if (i64Diff < 0)
1784	{
1785	Log(("SSM: Unit '%s' left %lld bytes unread!\n", pszName, -i64Diff));
1786	rc = RTFileSeek(Handle.File, offUnit + UnitHdr.cbUnit, RTFILE_SEEK_BEGIN, NULL);
1787	}
1788	else if (i64Diff > 0)
1789	{
1790	LogRel(("SSM: Unit '%s' read %lld bytes too much!\n", pszName, i64Diff));
1791	rc = VERR_SSM_INTEGRITY;
1792	break;
1793	}
1794
1795	/* Advance the progress bar to the end of the block. */
1796	ssmR3Progress(&Handle, Handle.offEstUnitEnd - Handle.offEst);
1797	}
1798	else
1799	{
1800	/*
1801	* We failed, but if loading for the debugger ignore certain failures
1802	* just to get it all loaded (big hack).
1803	*/
1804	LogRel(("SSM: LoadExec failed with rc=%Rrc for unit '%s'!\n", rc, pszName));
1805	if ( Handle.enmAfter != SSMAFTER_DEBUG_IT
1806	\|\| rc != VERR_SSM_LOADED_TOO_MUCH)
1807	break;
1808	Handle.rc = rc = VINF_SUCCESS;
1809	ssmR3Progress(&Handle, Handle.offEstUnitEnd - Handle.offEst);
1810	}
1811	}
1812	else
1813	{
1814	LogRel(("SSM: No load exec callback for unit '%s'!\n", pszName));
1815	rc = VERR_SSM_INTEGRITY;
1816	break;
1817	}
1818	}
1819	else
1820	{
1821	/*
1822	* SSM unit wasn't found - ignore this when loading for the debugger.
1823	*/
1824	LogRel(("SSM: Found no handler for unit '%s'!\n", pszName));
1825	rc = VERR_SSM_INTEGRITY_UNIT_NOT_FOUND;
1826	if (Handle.enmAfter != SSMAFTER_DEBUG_IT)
1827	break;
1828	rc = RTFileSeek(Handle.File, offUnit + UnitHdr.cbUnit, RTFILE_SEEK_BEGIN, NULL);
1829	}
1830	}
1831	else
1832	{
1833	LogRel(("SSM: Unit name '%.*s' was not properly terminated.\n", UnitHdr.cchName, pszName));
1834	rc = VERR_SSM_INTEGRITY;
1835	break;
1836	}
1837	}
1838	}
1839	else
1840	rc = VERR_NO_TMP_MEMORY;
1841	}
1842
1843	/*
1844	* I/O errors ends up here (yea, I know, very nice programming).
1845	*/
1846	if (RT_FAILURE(rc))
1847	{
1848	LogRel(("SSM: I/O error. rc=%Rrc\n", rc));
1849	break;
1850	}
1851	}
1852	}
1853	/* (progress should be pending 99% now) */
1854	AssertMsg(RT_FAILURE(rc) \|\| Handle.uPercent == (101-Handle.uPercentDone), ("%d\n", Handle.uPercent));
1855
1856	/*
1857	* Do the done run.
1858	*/
1859	Handle.rc = rc;
1860	Handle.enmOp = SSMSTATE_LOAD_DONE;
1861	for (pUnit = pVM->ssm.s.pHead; pUnit; pUnit = pUnit->pNext)
1862	{
1863	rc = VINF_SUCCESS;
1864	switch (pUnit->enmType)
1865	{
1866	case SSMUNITTYPE_DEV:
1867	if ( pUnit->u.Dev.pfnLoadDone
1868	&& ( pUnit->fCalled
1869	\|\| (!pUnit->u.Dev.pfnLoadPrep && !pUnit->u.Dev.pfnLoadExec)))
1870	rc = pUnit->u.Dev.pfnLoadDone(pUnit->u.Dev.pDevIns, &Handle);
1871	break;
1872	case SSMUNITTYPE_DRV:
1873	if ( pUnit->u.Drv.pfnLoadDone
1874	&& ( pUnit->fCalled
1875	\|\| (!pUnit->u.Drv.pfnLoadPrep && !pUnit->u.Drv.pfnLoadExec)))
1876	rc = pUnit->u.Drv.pfnLoadDone(pUnit->u.Drv.pDrvIns, &Handle);
1877	break;
1878	case SSMUNITTYPE_INTERNAL:
1879	if (pUnit->u.Internal.pfnLoadDone
1880	&& ( pUnit->fCalled
1881	\|\| (!pUnit->u.Internal.pfnLoadPrep && !pUnit->u.Internal.pfnLoadExec)))
1882	rc = pUnit->u.Internal.pfnLoadDone(pVM, &Handle);
1883	break;
1884	case SSMUNITTYPE_EXTERNAL:
1885	if (pUnit->u.External.pfnLoadDone
1886	&& ( pUnit->fCalled
1887	\|\| (!pUnit->u.Internal.pfnLoadPrep && !pUnit->u.Internal.pfnLoadExec)))
1888	rc = pUnit->u.External.pfnLoadDone(&Handle, pUnit->u.External.pvUser);
1889	break;
1890	}
1891	if (RT_FAILURE(rc))
1892	{
1893	LogRel(("SSM: Done load failed with rc=%Rrc for data unit '%s'.\n", rc, pUnit->szName));
1894	if (RT_SUCCESS(Handle.rc))
1895	Handle.rc = rc;
1896	}
1897	}
1898	rc = Handle.rc;
1899
1900	/* progress */
1901	if (pfnProgress)
1902	pfnProgress(pVM, 99, pvUser);
1903	}
1904
1905	/*
1906	* Done
1907	*/
1908	int rc2 = RTFileClose(Handle.File);
1909	AssertRC(rc2);
1910	if (RT_SUCCESS(rc))
1911	{
1912	/* progress */
1913	if (pfnProgress)
1914	pfnProgress(pVM, 100, pvUser);
1915	Log(("SSM: Load of '%s' completed!\n", pszFilename));
1916	Log(("\n\n\n"));
1917	DBGFR3InfoLog(pVM, "cpum", "verbose");
1918	DBGFR3InfoLog(pVM, "timers", NULL);
1919	DBGFR3InfoLog(pVM, "activetimers", NULL);
1920	DBGFR3InfoLog(pVM, "ioport", NULL);
1921	DBGFR3InfoLog(pVM, "mmio", NULL);
1922	DBGFR3InfoLog(pVM, "phys", NULL);
1923	Log(("\n\n\n"));
1924	}
1925	return rc;
1926	}
1927
1928
1929	/**
1930	* Validates a file as a validate SSM saved state.
1931	*
1932	* This will only verify the file format, the format and content of individual
1933	* data units are not inspected.
1934	*
1935	* @returns VINF_SUCCESS if valid.
1936	* @returns VBox status code on other failures.
1937	*
1938	* @param pszFilename The path to the file to validate.
1939	*
1940	* @thread Any.
1941	*/
1942	VMMR3DECL(int) SSMR3ValidateFile(const char *pszFilename)
1943	{
1944	LogFlow(("SSMR3ValidateFile: pszFilename=%p:{%s}\n", pszFilename, pszFilename));
1945
1946	/*
1947	* Try open the file and validate it.
1948	*/
1949	RTFILE File;
1950	int rc = RTFileOpen(&File, pszFilename, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
1951	if (RT_SUCCESS(rc))
1952	{
1953	size_t cbFileHdr;
1954	SSMFILEHDR Hdr;
1955	rc = ssmR3Validate(File, &Hdr, &cbFileHdr);
1956	RTFileClose(File);
1957	}
1958	else
1959	Log(("SSM: Failed to open saved state file '%s', rc=%Rrc.\n", pszFilename, rc));
1960	return rc;
1961	}
1962
1963
1964	/**
1965	* Opens a saved state file for reading.
1966	*
1967	* @returns VBox status code.
1968	*
1969	* @param pszFilename The path to the saved state file.
1970	* @param fFlags Open flags. Reserved, must be 0.
1971	* @param ppSSM Where to store the SSM handle.
1972	*
1973	* @thread Any.
1974	*/
1975	VMMR3DECL(int) SSMR3Open(const char pszFilename, unsigned fFlags, PSSMHANDLE ppSSM)
1976	{
1977	LogFlow(("SSMR3Open: pszFilename=%p:{%s} fFlags=%#x ppSSM=%p\n", pszFilename, pszFilename, fFlags, ppSSM));
1978
1979	/*
1980	* Validate input.
1981	*/
1982	AssertMsgReturn(VALID_PTR(pszFilename), ("%p\n", pszFilename), VERR_INVALID_PARAMETER);
1983	AssertMsgReturn(!fFlags, ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
1984	AssertMsgReturn(VALID_PTR(ppSSM), ("%p\n", ppSSM), VERR_INVALID_PARAMETER);
1985
1986	/*
1987	* Allocate a handle.
1988	*/
1989	PSSMHANDLE pSSM = (PSSMHANDLE)RTMemAllocZ(sizeof(*pSSM));
1990	AssertReturn(pSSM, VERR_NO_MEMORY);
1991
1992	/*
1993	* Try open the file and validate it.
1994	*/
1995	int rc = RTFileOpen(&pSSM->File, pszFilename, RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
1996	if (RT_SUCCESS(rc))
1997	{
1998	SSMFILEHDR Hdr;
1999	size_t cbFileHdr;
2000	rc = ssmR3Validate(pSSM->File, &Hdr, &cbFileHdr);
2001	if (RT_SUCCESS(rc))
2002	{
2003	//pSSM->pVM = NULL;
2004	pSSM->cbFileHdr = cbFileHdr;
2005	pSSM->enmOp = SSMSTATE_OPEN_READ;
2006	pSSM->enmAfter = SSMAFTER_OPENED;
2007	//pSSM->rc = VINF_SUCCESS;
2008	//pSSM->pZipComp = NULL;
2009	//pSSM->pZipDecomp = NULL;
2010	//pSSM->cbUnitLeft = 0;
2011	//pSSM->pfnProgress = NULL;
2012	//pSSM->pvUser = NULL;
2013	//pSSM->uPercent = 0;
2014	//pSSM->offEstProgress= 0;
2015	//pSSM->cbEstTotal = 0;
2016	//pSSM->offEst = 0;
2017	//pSSM->offEstUnitEnd = 0;
2018	pSSM->uPercentPrepare = 20;
2019	pSSM->uPercentDone = 2;
2020	pSSM->cbGCPhys = Hdr.cbGCPhys ? Hdr.cbGCPhys : sizeof(RTGCPHYS);
2021	pSSM->cbGCPtr = sizeof(RTGCPTR);
2022	pSSM->fFixedGCPtrSize = false;
2023	if (Hdr.cbGCPtr)
2024	{
2025	pSSM->cbGCPtr = Hdr.cbGCPtr;
2026	pSSM->fFixedGCPtrSize = true;
2027	}
2028
2029	*ppSSM = pSSM;
2030	LogFlow(("SSMR3Open: returns VINF_SUCCESS ppSSM=%p\n", ppSSM));
2031	return VINF_SUCCESS;
2032	}
2033
2034	Log(("SSMR3Open: Validation of '%s' failed, rc=%Rrc.\n", pszFilename, rc));
2035	RTFileClose(pSSM->File);
2036	}
2037	else
2038	Log(("SSMR3Open: Failed to open saved state file '%s', rc=%Rrc.\n", pszFilename, rc));
2039	RTMemFree(pSSM);
2040	return rc;
2041
2042	}
2043
2044
2045	/**
2046	* Closes a saved state file opened by SSMR3Open().
2047	*
2048	* @returns VBox status code.
2049	*
2050	* @param pSSM The SSM handle returned by SSMR3Open().
2051	*
2052	* @thread Any, but the caller is responsible for serializing calls per handle.
2053	*/
2054	VMMR3DECL(int) SSMR3Close(PSSMHANDLE pSSM)
2055	{
2056	LogFlow(("SSMR3Close: pSSM=%p\n", pSSM));
2057
2058	/*
2059	* Validate input.
2060	*/
2061	AssertMsgReturn(VALID_PTR(pSSM), ("%p\n", pSSM), VERR_INVALID_PARAMETER);
2062	AssertMsgReturn(pSSM->enmAfter == SSMAFTER_OPENED, ("%d\n", pSSM->enmAfter),VERR_INVALID_PARAMETER);
2063	AssertMsgReturn(pSSM->enmOp == SSMSTATE_OPEN_READ, ("%d\n", pSSM->enmOp), VERR_INVALID_PARAMETER);
2064
2065	/*
2066	* Close the file and free the handle.
2067	*/
2068	int rc = RTFileClose(pSSM->File);
2069	AssertRC(rc);
2070	RTMemFree(pSSM);
2071	return rc;
2072	}
2073
2074
2075	/**
2076	* Seeks to a specific data unit.
2077	*
2078	* After seeking it's possible to use the getters to on
2079	* that data unit.
2080	*
2081	* @returns VBox status code.
2082	* @returns VERR_SSM_UNIT_NOT_FOUND if the unit+instance wasn't found.
2083	*
2084	* @param pSSM The SSM handle returned by SSMR3Open().
2085	* @param pszUnit The name of the data unit.
2086	* @param iInstance The instance number.
2087	* @param piVersion Where to store the version number. (Optional)
2088	*
2089	* @thread Any, but the caller is responsible for serializing calls per handle.
2090	*/
2091	VMMR3DECL(int) SSMR3Seek(PSSMHANDLE pSSM, const char pszUnit, uint32_t iInstance, uint32_t piVersion)
2092	{
2093	LogFlow(("SSMR3Seek: pSSM=%p pszUnit=%p:{%s} iInstance=%RU32 piVersion=%p\n",
2094	pSSM, pszUnit, pszUnit, iInstance, piVersion));
2095
2096	/*
2097	* Validate input.
2098	*/
2099	AssertMsgReturn(VALID_PTR(pSSM), ("%p\n", pSSM), VERR_INVALID_PARAMETER);
2100	AssertMsgReturn(pSSM->enmAfter == SSMAFTER_OPENED, ("%d\n", pSSM->enmAfter),VERR_INVALID_PARAMETER);
2101	AssertMsgReturn(pSSM->enmOp == SSMSTATE_OPEN_READ, ("%d\n", pSSM->enmOp), VERR_INVALID_PARAMETER);
2102	AssertMsgReturn(VALID_PTR(pszUnit), ("%p\n", pszUnit), VERR_INVALID_POINTER);
2103	AssertMsgReturn(!piVersion \|\| VALID_PTR(piVersion), ("%p\n", piVersion), VERR_INVALID_POINTER);
2104
2105	/*
2106	* Reset the state.
2107	*/
2108	if (pSSM->pZipDecomp)
2109	{
2110	RTZipDecompDestroy(pSSM->pZipDecomp);
2111	pSSM->pZipDecomp = NULL;
2112	}
2113	pSSM->rc = VERR_SSM_UNIT_NOT_FOUND;
2114	pSSM->cbUnitLeft = 0;
2115
2116	/*
2117	* Walk the data units until we find EOF or a match.
2118	*/
2119	size_t cchUnit = strlen(pszUnit) + 1;
2120	int rc = VINF_SUCCESS;
2121	char *pszName = NULL;
2122	size_t cchName = 0;
2123	SSMFILEUNITHDR UnitHdr;
2124	for (RTFOFF off = pSSM->cbFileHdr; ; off += UnitHdr.cbUnit)
2125	{
2126	/*
2127	* Read the unit header and verify it.
2128	*/
2129	rc = RTFileReadAt(pSSM->File, off, &UnitHdr, RT_OFFSETOF(SSMFILEUNITHDR, szName), NULL);
2130	AssertRC(rc);
2131	if (RT_SUCCESS(rc))
2132	{
2133	if (!memcmp(&UnitHdr.achMagic[0], SSMFILEUNITHDR_MAGIC, sizeof(SSMFILEUNITHDR_MAGIC)))
2134	{
2135	/*
2136	* Does it match thus far or should we just skip along?
2137	*/
2138	if ( UnitHdr.u32Instance != iInstance
2139	&& UnitHdr.cchName != cchUnit)
2140	continue;
2141
2142	/*
2143	* Read the name.
2144	* Adjust the name buffer first.
2145	*/
2146	if (cchName < UnitHdr.cchName)
2147	{
2148	if (pszName)
2149	RTMemTmpFree(pszName);
2150	cchName = RT_ALIGN_Z(UnitHdr.cchName, 64);
2151	pszName = (char *)RTMemTmpAlloc(cchName);
2152	}
2153	rc = VERR_NO_MEMORY;
2154	if (pszName)
2155	{
2156	rc = RTFileRead(pSSM->File, pszName, UnitHdr.cchName, NULL);
2157	AssertRC(rc);
2158	if (RT_SUCCESS(rc))
2159	{
2160	if (!pszName[UnitHdr.cchName - 1])
2161	{
2162	/*
2163	* Does the name match? If not continue with the next item.
2164	*/
2165	if (memcmp(pszName, pszUnit, cchUnit))
2166	continue;
2167
2168	pSSM->rc = rc = VINF_SUCCESS;
2169	pSSM->cbUnitLeft = UnitHdr.cbUnit - RT_OFFSETOF(SSMFILEUNITHDR, szName[UnitHdr.cchName]);
2170	if (piVersion)
2171	*piVersion = UnitHdr.u32Version;
2172	}
2173	else
2174	{
2175	AssertMsgFailed((" Unit name '%.*s' was not properly terminated.\n", UnitHdr.cchName, pszName));
2176	rc = VERR_SSM_INTEGRITY;
2177	}
2178	}
2179	}
2180	}
2181	else
2182	{
2183	if (!memcmp(&UnitHdr.achMagic[0], SSMFILEUNITHDR_END, sizeof(SSMFILEUNITHDR_END)))
2184	rc = VERR_SSM_UNIT_NOT_FOUND;
2185	else
2186	{
2187	AssertMsgFailed(("Invalid unit magic at offset %RTfoff, '%.*s'!\n",
2188	off, sizeof(UnitHdr.achMagic) - 1, &UnitHdr.achMagic[0]));
2189	rc = VERR_SSM_INTEGRITY_UNIT_MAGIC;
2190	}
2191	}
2192	}
2193
2194	/* error or success, two continue statements cover the iterating */
2195	break;
2196	}
2197
2198	RTMemFree(pszName);
2199	return rc;
2200	}
2201
2202
2203	/**
2204	* Finishes a data unit.
2205	* All buffers and compressor instances are flushed and destroyed.
2206	*
2207	* @returns VBox status.
2208	* @param pSSM SSM operation handle.
2209	*/
2210	static int ssmR3WriteFinish(PSSMHANDLE pSSM)
2211	{
2212	//Log2(("ssmR3WriteFinish: %#010llx start\n", RTFileTell(pSSM->File)));
2213	if (!pSSM->pZipComp)
2214	return VINF_SUCCESS;
2215
2216	int rc = RTZipCompFinish(pSSM->pZipComp);
2217	if (RT_SUCCESS(rc))
2218	{
2219	rc = RTZipCompDestroy(pSSM->pZipComp);
2220	if (RT_SUCCESS(rc))
2221	{
2222	pSSM->pZipComp = NULL;
2223	//Log2(("ssmR3WriteFinish: %#010llx done\n", RTFileTell(pSSM->File)));
2224	return VINF_SUCCESS;
2225	}
2226	}
2227	if (RT_SUCCESS(pSSM->rc))
2228	pSSM->rc = rc;
2229	Log2(("ssmR3WriteFinish: failure rc=%Rrc\n", rc));
2230	return rc;
2231	}
2232
2233
2234	/**
2235	* Writes something to the current data item in the saved state file.
2236	*
2237	* @returns VBox status.
2238	* @param pSSM SSM operation handle.
2239	* @param pvBuf The bits to write.
2240	* @param cbBuf The number of bytes to write.
2241	*/
2242	static int ssmR3Write(PSSMHANDLE pSSM, const void *pvBuf, size_t cbBuf)
2243	{
2244	Log2(("ssmR3Write: pvBuf=%p cbBuf=%#x %.*Rhxs%s\n", pvBuf, cbBuf, RT_MIN(cbBuf, 128), pvBuf, cbBuf > 128 ? "..." : ""));
2245
2246	/*
2247	* Check that everything is fine.
2248	*/
2249	if (RT_SUCCESS(pSSM->rc))
2250	{
2251	/*
2252	* First call starts the compression.
2253	*/
2254	if (!pSSM->pZipComp)
2255	{
2256	//int rc = RTZipCompCreate(&pSSM->pZipComp, pSSM, ssmR3WriteOut, RTZIPTYPE_ZLIB, RTZIPLEVEL_FAST);
2257	int rc = RTZipCompCreate(&pSSM->pZipComp, pSSM, ssmR3WriteOut, RTZIPTYPE_LZF, RTZIPLEVEL_FAST);
2258	//int rc = RTZipCompCreate(&pSSM->pZipComp, pSSM, ssmR3WriteOut, RTZIPTYPE_STORE, RTZIPLEVEL_FAST);
2259	if (RT_FAILURE(rc))
2260	return rc;
2261	}
2262
2263	/*
2264	* Write the data item in 128kb chunks for progress indicator reasons.
2265	*/
2266	while (cbBuf > 0)
2267	{
2268	size_t cbChunk = RT_MIN(cbBuf, 128*1024);
2269	pSSM->rc = RTZipCompress(pSSM->pZipComp, pvBuf, cbChunk);
2270	if (RT_FAILURE(pSSM->rc))
2271	break;
2272	ssmR3Progress(pSSM, cbChunk);
2273	cbBuf -= cbChunk;
2274	pvBuf = (char *)pvBuf + cbChunk;
2275	}
2276	}
2277
2278	return pSSM->rc;
2279	}
2280
2281
2282	/**
2283	* Callback for flusing the output buffer of a compression stream.
2284	*
2285	* @returns VBox status.
2286	* @param pvSSM SSM operation handle.
2287	* @param pvBuf Compressed data.
2288	* @param cbBuf Size of the compressed data.
2289	*/
2290	static DECLCALLBACK(int) ssmR3WriteOut(void pvSSM, const void pvBuf, size_t cbBuf)
2291	{
2292	//Log2(("ssmR3WriteOut: %#010llx cbBuf=%#x\n", RTFileTell(((PSSMHANDLE)pvSSM)->File), cbBuf));
2293	int rc = RTFileWrite(((PSSMHANDLE)pvSSM)->File, pvBuf, cbBuf, NULL);
2294	if (RT_SUCCESS(rc))
2295	return rc;
2296	Log(("ssmR3WriteOut: RTFileWrite(,,%d) -> %d\n", cbBuf, rc));
2297	return rc;
2298	}
2299
2300
2301	/**
2302	* Puts a structure.
2303	*
2304	* @returns VBox status code.
2305	* @param pSSM The saved state handle.
2306	* @param pvStruct The structure address.
2307	* @param paFields The array of structure fields descriptions.
2308	* The array must be terminated by a SSMFIELD_ENTRY_TERM().
2309	*/
2310	VMMR3DECL(int) SSMR3PutStruct(PSSMHANDLE pSSM, const void *pvStruct, PCSSMFIELD paFields)
2311	{
2312	/* begin marker. */
2313	int rc = SSMR3PutU32(pSSM, SSMR3STRUCT_BEGIN);
2314	if (RT_FAILURE(rc))
2315	return rc;
2316
2317	/* put the fields */
2318	for (PCSSMFIELD pCur = paFields;
2319	pCur->cb != UINT32_MAX && pCur->off != UINT32_MAX;
2320	pCur++)
2321	{
2322	rc = ssmR3Write(pSSM, (uint8_t *)pvStruct + pCur->off, pCur->cb);
2323	if (RT_FAILURE(rc))
2324	return rc;
2325	}
2326
2327	/* end marker */
2328	return SSMR3PutU32(pSSM, SSMR3STRUCT_END);
2329	}
2330
2331
2332	/**
2333	* Saves a boolean item to the current data unit.
2334	*
2335	* @returns VBox status.
2336	* @param pSSM SSM operation handle.
2337	* @param fBool Item to save.
2338	*/
2339	VMMR3DECL(int) SSMR3PutBool(PSSMHANDLE pSSM, bool fBool)
2340	{
2341	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2342	{
2343	uint8_t u8 = fBool; /* enforce 1 byte size */
2344	return ssmR3Write(pSSM, &u8, sizeof(u8));
2345	}
2346	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2347	return VERR_SSM_INVALID_STATE;
2348	}
2349
2350
2351	/**
2352	* Saves a 8-bit unsigned integer item to the current data unit.
2353	*
2354	* @returns VBox status.
2355	* @param pSSM SSM operation handle.
2356	* @param u8 Item to save.
2357	*/
2358	VMMR3DECL(int) SSMR3PutU8(PSSMHANDLE pSSM, uint8_t u8)
2359	{
2360	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2361	return ssmR3Write(pSSM, &u8, sizeof(u8));
2362	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2363	return VERR_SSM_INVALID_STATE;
2364	}
2365
2366
2367	/**
2368	* Saves a 8-bit signed integer item to the current data unit.
2369	*
2370	* @returns VBox status.
2371	* @param pSSM SSM operation handle.
2372	* @param i8 Item to save.
2373	*/
2374	VMMR3DECL(int) SSMR3PutS8(PSSMHANDLE pSSM, int8_t i8)
2375	{
2376	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2377	return ssmR3Write(pSSM, &i8, sizeof(i8));
2378	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2379	return VERR_SSM_INVALID_STATE;
2380	}
2381
2382
2383	/**
2384	* Saves a 16-bit unsigned integer item to the current data unit.
2385	*
2386	* @returns VBox status.
2387	* @param pSSM SSM operation handle.
2388	* @param u16 Item to save.
2389	*/
2390	VMMR3DECL(int) SSMR3PutU16(PSSMHANDLE pSSM, uint16_t u16)
2391	{
2392	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2393	return ssmR3Write(pSSM, &u16, sizeof(u16));
2394	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2395	return VERR_SSM_INVALID_STATE;
2396	}
2397
2398
2399	/**
2400	* Saves a 16-bit signed integer item to the current data unit.
2401	*
2402	* @returns VBox status.
2403	* @param pSSM SSM operation handle.
2404	* @param i16 Item to save.
2405	*/
2406	VMMR3DECL(int) SSMR3PutS16(PSSMHANDLE pSSM, int16_t i16)
2407	{
2408	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2409	return ssmR3Write(pSSM, &i16, sizeof(i16));
2410	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2411	return VERR_SSM_INVALID_STATE;
2412	}
2413
2414
2415	/**
2416	* Saves a 32-bit unsigned integer item to the current data unit.
2417	*
2418	* @returns VBox status.
2419	* @param pSSM SSM operation handle.
2420	* @param u32 Item to save.
2421	*/
2422	VMMR3DECL(int) SSMR3PutU32(PSSMHANDLE pSSM, uint32_t u32)
2423	{
2424	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2425	return ssmR3Write(pSSM, &u32, sizeof(u32));
2426	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2427	return VERR_SSM_INVALID_STATE;
2428	}
2429
2430
2431	/**
2432	* Saves a 32-bit signed integer item to the current data unit.
2433	*
2434	* @returns VBox status.
2435	* @param pSSM SSM operation handle.
2436	* @param i32 Item to save.
2437	*/
2438	VMMR3DECL(int) SSMR3PutS32(PSSMHANDLE pSSM, int32_t i32)
2439	{
2440	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2441	return ssmR3Write(pSSM, &i32, sizeof(i32));
2442	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2443	return VERR_SSM_INVALID_STATE;
2444	}
2445
2446
2447	/**
2448	* Saves a 64-bit unsigned integer item to the current data unit.
2449	*
2450	* @returns VBox status.
2451	* @param pSSM SSM operation handle.
2452	* @param u64 Item to save.
2453	*/
2454	VMMR3DECL(int) SSMR3PutU64(PSSMHANDLE pSSM, uint64_t u64)
2455	{
2456	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2457	return ssmR3Write(pSSM, &u64, sizeof(u64));
2458	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2459	return VERR_SSM_INVALID_STATE;
2460	}
2461
2462
2463	/**
2464	* Saves a 64-bit signed integer item to the current data unit.
2465	*
2466	* @returns VBox status.
2467	* @param pSSM SSM operation handle.
2468	* @param i64 Item to save.
2469	*/
2470	VMMR3DECL(int) SSMR3PutS64(PSSMHANDLE pSSM, int64_t i64)
2471	{
2472	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2473	return ssmR3Write(pSSM, &i64, sizeof(i64));
2474	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2475	return VERR_SSM_INVALID_STATE;
2476	}
2477
2478
2479	/**
2480	* Saves a 128-bit unsigned integer item to the current data unit.
2481	*
2482	* @returns VBox status.
2483	* @param pSSM SSM operation handle.
2484	* @param u128 Item to save.
2485	*/
2486	VMMR3DECL(int) SSMR3PutU128(PSSMHANDLE pSSM, uint128_t u128)
2487	{
2488	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2489	return ssmR3Write(pSSM, &u128, sizeof(u128));
2490	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2491	return VERR_SSM_INVALID_STATE;
2492	}
2493
2494
2495	/**
2496	* Saves a 128-bit signed integer item to the current data unit.
2497	*
2498	* @returns VBox status.
2499	* @param pSSM SSM operation handle.
2500	* @param i128 Item to save.
2501	*/
2502	VMMR3DECL(int) SSMR3PutS128(PSSMHANDLE pSSM, int128_t i128)
2503	{
2504	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2505	return ssmR3Write(pSSM, &i128, sizeof(i128));
2506	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2507	return VERR_SSM_INVALID_STATE;
2508	}
2509
2510
2511	/**
2512	* Saves a VBox unsigned integer item to the current data unit.
2513	*
2514	* @returns VBox status.
2515	* @param pSSM SSM operation handle.
2516	* @param u Item to save.
2517	*/
2518	VMMR3DECL(int) SSMR3PutUInt(PSSMHANDLE pSSM, RTUINT u)
2519	{
2520	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2521	return ssmR3Write(pSSM, &u, sizeof(u));
2522	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2523	return VERR_SSM_INVALID_STATE;
2524	}
2525
2526
2527	/**
2528	* Saves a VBox signed integer item to the current data unit.
2529	*
2530	* @returns VBox status.
2531	* @param pSSM SSM operation handle.
2532	* @param i Item to save.
2533	*/
2534	VMMR3DECL(int) SSMR3PutSInt(PSSMHANDLE pSSM, RTINT i)
2535	{
2536	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2537	return ssmR3Write(pSSM, &i, sizeof(i));
2538	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2539	return VERR_SSM_INVALID_STATE;
2540	}
2541
2542
2543	/**
2544	* Saves a GC natural unsigned integer item to the current data unit.
2545	*
2546	* @returns VBox status.
2547	* @param pSSM SSM operation handle.
2548	* @param u Item to save.
2549	*
2550	* @deprecated Silly type, don't use it.
2551	*/
2552	VMMR3DECL(int) SSMR3PutGCUInt(PSSMHANDLE pSSM, RTGCUINT u)
2553	{
2554	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2555	return ssmR3Write(pSSM, &u, sizeof(u));
2556	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2557	return VERR_SSM_INVALID_STATE;
2558	}
2559
2560
2561	/**
2562	* Saves a GC unsigned integer register item to the current data unit.
2563	*
2564	* @returns VBox status.
2565	* @param pSSM SSM operation handle.
2566	* @param u Item to save.
2567	*/
2568	VMMR3DECL(int) SSMR3PutGCUIntReg(PSSMHANDLE pSSM, RTGCUINTREG u)
2569	{
2570	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2571	return ssmR3Write(pSSM, &u, sizeof(u));
2572	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2573	return VERR_SSM_INVALID_STATE;
2574	}
2575
2576
2577	/**
2578	* Saves a 32 bits GC physical address item to the current data unit.
2579	*
2580	* @returns VBox status.
2581	* @param pSSM SSM operation handle.
2582	* @param GCPhys The item to save
2583	*/
2584	VMMR3DECL(int) SSMR3PutGCPhys32(PSSMHANDLE pSSM, RTGCPHYS32 GCPhys)
2585	{
2586	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2587	return ssmR3Write(pSSM, &GCPhys, sizeof(GCPhys));
2588	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2589	return VERR_SSM_INVALID_STATE;
2590	}
2591
2592
2593	/**
2594	* Saves a 64 bits GC physical address item to the current data unit.
2595	*
2596	* @returns VBox status.
2597	* @param pSSM SSM operation handle.
2598	* @param GCPhys The item to save
2599	*/
2600	VMMR3DECL(int) SSMR3PutGCPhys64(PSSMHANDLE pSSM, RTGCPHYS64 GCPhys)
2601	{
2602	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2603	return ssmR3Write(pSSM, &GCPhys, sizeof(GCPhys));
2604	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2605	return VERR_SSM_INVALID_STATE;
2606	}
2607
2608
2609	/**
2610	* Saves a GC physical address item to the current data unit.
2611	*
2612	* @returns VBox status.
2613	* @param pSSM SSM operation handle.
2614	* @param GCPhys The item to save
2615	*/
2616	VMMR3DECL(int) SSMR3PutGCPhys(PSSMHANDLE pSSM, RTGCPHYS GCPhys)
2617	{
2618	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2619	return ssmR3Write(pSSM, &GCPhys, sizeof(GCPhys));
2620	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2621	return VERR_SSM_INVALID_STATE;
2622	}
2623
2624
2625	/**
2626	* Saves a GC virtual address item to the current data unit.
2627	*
2628	* @returns VBox status.
2629	* @param pSSM SSM operation handle.
2630	* @param GCPtr The item to save.
2631	*/
2632	VMMR3DECL(int) SSMR3PutGCPtr(PSSMHANDLE pSSM, RTGCPTR GCPtr)
2633	{
2634	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2635	return ssmR3Write(pSSM, &GCPtr, sizeof(GCPtr));
2636	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2637	return VERR_SSM_INVALID_STATE;
2638	}
2639
2640
2641	/**
2642	* Saves an RC virtual address item to the current data unit.
2643	*
2644	* @returns VBox status.
2645	* @param pSSM SSM operation handle.
2646	* @param RCPtr The item to save.
2647	*/
2648	VMMR3DECL(int) SSMR3PutRCPtr(PSSMHANDLE pSSM, RTRCPTR RCPtr)
2649	{
2650	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2651	return ssmR3Write(pSSM, &RCPtr, sizeof(RCPtr));
2652	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2653	return VERR_SSM_INVALID_STATE;
2654	}
2655
2656
2657	/**
2658	* Saves a GC virtual address (represented as an unsigned integer) item to the current data unit.
2659	*
2660	* @returns VBox status.
2661	* @param pSSM SSM operation handle.
2662	* @param GCPtr The item to save.
2663	*/
2664	VMMR3DECL(int) SSMR3PutGCUIntPtr(PSSMHANDLE pSSM, RTGCUINTPTR GCPtr)
2665	{
2666	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2667	return ssmR3Write(pSSM, &GCPtr, sizeof(GCPtr));
2668	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2669	return VERR_SSM_INVALID_STATE;
2670	}
2671
2672
2673	/**
2674	* Saves a I/O port address item to the current data unit.
2675	*
2676	* @returns VBox status.
2677	* @param pSSM SSM operation handle.
2678	* @param IOPort The item to save.
2679	*/
2680	VMMR3DECL(int) SSMR3PutIOPort(PSSMHANDLE pSSM, RTIOPORT IOPort)
2681	{
2682	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2683	return ssmR3Write(pSSM, &IOPort, sizeof(IOPort));
2684	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2685	return VERR_SSM_INVALID_STATE;
2686	}
2687
2688
2689	/**
2690	* Saves a selector item to the current data unit.
2691	*
2692	* @returns VBox status.
2693	* @param pSSM SSM operation handle.
2694	* @param Sel The item to save.
2695	*/
2696	VMMR3DECL(int) SSMR3PutSel(PSSMHANDLE pSSM, RTSEL Sel)
2697	{
2698	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2699	return ssmR3Write(pSSM, &Sel, sizeof(Sel));
2700	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2701	return VERR_SSM_INVALID_STATE;
2702	}
2703
2704
2705	/**
2706	* Saves a memory item to the current data unit.
2707	*
2708	* @returns VBox status.
2709	* @param pSSM SSM operation handle.
2710	* @param pv Item to save.
2711	* @param cb Size of the item.
2712	*/
2713	VMMR3DECL(int) SSMR3PutMem(PSSMHANDLE pSSM, const void *pv, size_t cb)
2714	{
2715	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2716	return ssmR3Write(pSSM, pv, cb);
2717	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2718	return VERR_SSM_INVALID_STATE;
2719	}
2720
2721
2722	/**
2723	* Saves a zero terminated string item to the current data unit.
2724	*
2725	* @returns VBox status.
2726	* @param pSSM SSM operation handle.
2727	* @param psz Item to save.
2728	*/
2729	VMMR3DECL(int) SSMR3PutStrZ(PSSMHANDLE pSSM, const char *psz)
2730	{
2731	if (pSSM->enmOp == SSMSTATE_SAVE_EXEC)
2732	{
2733	size_t cch = strlen(psz);
2734	if (cch > 1024*1024)
2735	{
2736	AssertMsgFailed(("a %d byte long string, what's this!?!\n"));
2737	return VERR_TOO_MUCH_DATA;
2738	}
2739	uint32_t u32 = (uint32_t)cch;
2740	int rc = ssmR3Write(pSSM, &u32, sizeof(u32));
2741	if (rc)
2742	return rc;
2743	return ssmR3Write(pSSM, psz, cch);
2744	}
2745	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2746	return VERR_SSM_INVALID_STATE;
2747	}
2748
2749
2750
2751
2752
2753	/**
2754	* Closes the decompressor of a data unit.
2755	*
2756	* @param pSSM SSM operation handle.
2757	*/
2758	static void ssmR3ReadFinish(PSSMHANDLE pSSM)
2759	{
2760	int rc = RTZipDecompDestroy(pSSM->pZipDecomp);
2761	AssertRC(rc);
2762	pSSM->pZipDecomp = NULL;
2763	}
2764
2765
2766	/**
2767	* Internal read worker.
2768	*
2769	* @param pSSM SSM operation handle.
2770	* @param pvBuf Where to store the read data.
2771	* @param cbBuf Number of bytes to read.
2772	*/
2773	static int ssmR3Read(PSSMHANDLE pSSM, void *pvBuf, size_t cbBuf)
2774	{
2775	/*
2776	* Check that everything is fine.
2777	*/
2778	if (RT_SUCCESS(pSSM->rc))
2779	{
2780	/*
2781	* Open the decompressor on the first read.
2782	*/
2783	if (!pSSM->pZipDecomp)
2784	{
2785	pSSM->rc = RTZipDecompCreate(&pSSM->pZipDecomp, pSSM, ssmR3ReadIn);
2786	if (RT_FAILURE(pSSM->rc))
2787	return pSSM->rc;
2788	}
2789
2790	/*
2791	* Do the requested read.
2792	* Use 32kb chunks to work the progress indicator.
2793	*/
2794	pSSM->rc = RTZipDecompress(pSSM->pZipDecomp, pvBuf, cbBuf, NULL);
2795	if (RT_SUCCESS(pSSM->rc))
2796	Log2(("ssmR3Read: pvBuf=%p cbBuf=%#x %.*Rhxs%s\n", pvBuf, cbBuf, RT_MIN(cbBuf, 128), pvBuf, cbBuf > 128 ? "..." : ""));
2797	else
2798	AssertMsgFailed(("rc=%Rrc cbBuf=%#x\n", pSSM->rc, cbBuf));
2799	}
2800
2801	return pSSM->rc;
2802	}
2803
2804
2805	/**
2806	* Callback for reading compressed data into the input buffer of the
2807	* decompressor.
2808	*
2809	* @returns VBox status code.
2810	* @param pvSSM The SSM handle.
2811	* @param pvBuf Where to store the compressed data.
2812	* @param cbBuf Size of the buffer.
2813	* @param pcbRead Number of bytes actually stored in the buffer.
2814	*/
2815	static DECLCALLBACK(int) ssmR3ReadIn(void pvSSM, void pvBuf, size_t cbBuf, size_t *pcbRead)
2816	{
2817	PSSMHANDLE pSSM = (PSSMHANDLE)pvSSM;
2818	size_t cbRead = cbBuf;
2819	if (pSSM->cbUnitLeft < cbBuf)
2820	cbRead = (size_t)pSSM->cbUnitLeft;
2821	if (cbRead)
2822	{
2823	//Log2(("ssmR3ReadIn: %#010llx cbBug=%#x cbRead=%#x\n", RTFileTell(pSSM->File), cbBuf, cbRead));
2824	int rc = RTFileRead(pSSM->File, pvBuf, cbRead, NULL);
2825	if (RT_SUCCESS(rc))
2826	{
2827	pSSM->cbUnitLeft -= cbRead;
2828	if (pcbRead)
2829	*pcbRead = cbRead;
2830	ssmR3Progress(pSSM, cbRead);
2831	return VINF_SUCCESS;
2832	}
2833	Log(("ssmR3ReadIn: RTFileRead(,,%d) -> %d\n", cbRead, rc));
2834	return rc;
2835	}
2836
2837	/** @todo weed out lazy saving */
2838	if (pSSM->enmAfter != SSMAFTER_DEBUG_IT)
2839	AssertMsgFailed(("SSM: attempted reading more than the unit!\n"));
2840	return VERR_SSM_LOADED_TOO_MUCH;
2841	}
2842
2843
2844	/**
2845	* Gets a structure.
2846	*
2847	* @returns VBox status code.
2848	* @param pSSM The saved state handle.
2849	* @param pvStruct The structure address.
2850	* @param paFields The array of structure fields descriptions.
2851	* The array must be terminated by a SSMFIELD_ENTRY_TERM().
2852	*/
2853	VMMR3DECL(int) SSMR3GetStruct(PSSMHANDLE pSSM, void *pvStruct, PCSSMFIELD paFields)
2854	{
2855	/* begin marker. */
2856	uint32_t u32Magic;
2857	int rc = SSMR3GetU32(pSSM, &u32Magic);
2858	if (RT_FAILURE(rc))
2859	return rc;
2860	if (u32Magic != SSMR3STRUCT_BEGIN)
2861	AssertMsgFailedReturn(("u32Magic=%#RX32\n", u32Magic), VERR_SSM_STRUCTURE_MAGIC);
2862
2863	/* put the fields */
2864	for (PCSSMFIELD pCur = paFields;
2865	pCur->cb != UINT32_MAX && pCur->off != UINT32_MAX;
2866	pCur++)
2867	{
2868	rc = ssmR3Read(pSSM, (uint8_t *)pvStruct + pCur->off, pCur->cb);
2869	if (RT_FAILURE(rc))
2870	return rc;
2871	}
2872
2873	/* end marker */
2874	rc = SSMR3GetU32(pSSM, &u32Magic);
2875	if (RT_FAILURE(rc))
2876	return rc;
2877	if (u32Magic != SSMR3STRUCT_END)
2878	AssertMsgFailedReturn(("u32Magic=%#RX32\n", u32Magic), VERR_SSM_STRUCTURE_MAGIC);
2879	return rc;
2880	}
2881
2882
2883	/**
2884	* Loads a boolean item from the current data unit.
2885	*
2886	* @returns VBox status.
2887	* @param pSSM SSM operation handle.
2888	* @param pfBool Where to store the item.
2889	*/
2890	VMMR3DECL(int) SSMR3GetBool(PSSMHANDLE pSSM, bool *pfBool)
2891	{
2892	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
2893	{
2894	uint8_t u8; /* see SSMR3PutBool */
2895	int rc = ssmR3Read(pSSM, &u8, sizeof(u8));
2896	if (RT_SUCCESS(rc))
2897	{
2898	Assert(u8 <= 1);
2899	*pfBool = !!u8;
2900	}
2901	return rc;
2902	}
2903	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2904	return VERR_SSM_INVALID_STATE;
2905	}
2906
2907
2908	/**
2909	* Loads a 8-bit unsigned integer item from the current data unit.
2910	*
2911	* @returns VBox status.
2912	* @param pSSM SSM operation handle.
2913	* @param pu8 Where to store the item.
2914	*/
2915	VMMR3DECL(int) SSMR3GetU8(PSSMHANDLE pSSM, uint8_t *pu8)
2916	{
2917	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
2918	return ssmR3Read(pSSM, pu8, sizeof(*pu8));
2919	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2920	return VERR_SSM_INVALID_STATE;
2921	}
2922
2923
2924	/**
2925	* Loads a 8-bit signed integer item from the current data unit.
2926	*
2927	* @returns VBox status.
2928	* @param pSSM SSM operation handle.
2929	* @param pi8 Where to store the item.
2930	*/
2931	VMMR3DECL(int) SSMR3GetS8(PSSMHANDLE pSSM, int8_t *pi8)
2932	{
2933	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
2934	return ssmR3Read(pSSM, pi8, sizeof(*pi8));
2935	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2936	return VERR_SSM_INVALID_STATE;
2937	}
2938
2939
2940	/**
2941	* Loads a 16-bit unsigned integer item from the current data unit.
2942	*
2943	* @returns VBox status.
2944	* @param pSSM SSM operation handle.
2945	* @param pu16 Where to store the item.
2946	*/
2947	VMMR3DECL(int) SSMR3GetU16(PSSMHANDLE pSSM, uint16_t *pu16)
2948	{
2949	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
2950	return ssmR3Read(pSSM, pu16, sizeof(*pu16));
2951	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2952	return VERR_SSM_INVALID_STATE;
2953	}
2954
2955
2956	/**
2957	* Loads a 16-bit signed integer item from the current data unit.
2958	*
2959	* @returns VBox status.
2960	* @param pSSM SSM operation handle.
2961	* @param pi16 Where to store the item.
2962	*/
2963	VMMR3DECL(int) SSMR3GetS16(PSSMHANDLE pSSM, int16_t *pi16)
2964	{
2965	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
2966	return ssmR3Read(pSSM, pi16, sizeof(*pi16));
2967	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2968	return VERR_SSM_INVALID_STATE;
2969	}
2970
2971
2972	/**
2973	* Loads a 32-bit unsigned integer item from the current data unit.
2974	*
2975	* @returns VBox status.
2976	* @param pSSM SSM operation handle.
2977	* @param pu32 Where to store the item.
2978	*/
2979	VMMR3DECL(int) SSMR3GetU32(PSSMHANDLE pSSM, uint32_t *pu32)
2980	{
2981	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
2982	return ssmR3Read(pSSM, pu32, sizeof(*pu32));
2983	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
2984	return VERR_SSM_INVALID_STATE;
2985	}
2986
2987
2988	/**
2989	* Loads a 32-bit signed integer item from the current data unit.
2990	*
2991	* @returns VBox status.
2992	* @param pSSM SSM operation handle.
2993	* @param pi32 Where to store the item.
2994	*/
2995	VMMR3DECL(int) SSMR3GetS32(PSSMHANDLE pSSM, int32_t *pi32)
2996	{
2997	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
2998	return ssmR3Read(pSSM, pi32, sizeof(*pi32));
2999	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3000	return VERR_SSM_INVALID_STATE;
3001	}
3002
3003
3004	/**
3005	* Loads a 64-bit unsigned integer item from the current data unit.
3006	*
3007	* @returns VBox status.
3008	* @param pSSM SSM operation handle.
3009	* @param pu64 Where to store the item.
3010	*/
3011	VMMR3DECL(int) SSMR3GetU64(PSSMHANDLE pSSM, uint64_t *pu64)
3012	{
3013	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3014	return ssmR3Read(pSSM, pu64, sizeof(*pu64));
3015	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3016	return VERR_SSM_INVALID_STATE;
3017	}
3018
3019
3020	/**
3021	* Loads a 64-bit signed integer item from the current data unit.
3022	*
3023	* @returns VBox status.
3024	* @param pSSM SSM operation handle.
3025	* @param pi64 Where to store the item.
3026	*/
3027	VMMR3DECL(int) SSMR3GetS64(PSSMHANDLE pSSM, int64_t *pi64)
3028	{
3029	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3030	return ssmR3Read(pSSM, pi64, sizeof(*pi64));
3031	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3032	return VERR_SSM_INVALID_STATE;
3033	}
3034
3035
3036	/**
3037	* Loads a 128-bit unsigned integer item from the current data unit.
3038	*
3039	* @returns VBox status.
3040	* @param pSSM SSM operation handle.
3041	* @param pu128 Where to store the item.
3042	*/
3043	VMMR3DECL(int) SSMR3GetU128(PSSMHANDLE pSSM, uint128_t *pu128)
3044	{
3045	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3046	return ssmR3Read(pSSM, pu128, sizeof(*pu128));
3047	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3048	return VERR_SSM_INVALID_STATE;
3049	}
3050
3051
3052	/**
3053	* Loads a 128-bit signed integer item from the current data unit.
3054	*
3055	* @returns VBox status.
3056	* @param pSSM SSM operation handle.
3057	* @param pi128 Where to store the item.
3058	*/
3059	VMMR3DECL(int) SSMR3GetS128(PSSMHANDLE pSSM, int128_t *pi128)
3060	{
3061	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3062	return ssmR3Read(pSSM, pi128, sizeof(*pi128));
3063	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3064	return VERR_SSM_INVALID_STATE;
3065	}
3066
3067
3068	/**
3069	* Loads a VBox unsigned integer item from the current data unit.
3070	*
3071	* @returns VBox status.
3072	* @param pSSM SSM operation handle.
3073	* @param pu Where to store the integer.
3074	*/
3075	VMMR3DECL(int) SSMR3GetUInt(PSSMHANDLE pSSM, PRTUINT pu)
3076	{
3077	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3078	return ssmR3Read(pSSM, pu, sizeof(*pu));
3079	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3080	return VERR_SSM_INVALID_STATE;
3081	}
3082
3083
3084	/**
3085	* Loads a VBox signed integer item from the current data unit.
3086	*
3087	* @returns VBox status.
3088	* @param pSSM SSM operation handle.
3089	* @param pi Where to store the integer.
3090	*/
3091	VMMR3DECL(int) SSMR3GetSInt(PSSMHANDLE pSSM, PRTINT pi)
3092	{
3093	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3094	return ssmR3Read(pSSM, pi, sizeof(*pi));
3095	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3096	return VERR_SSM_INVALID_STATE;
3097	}
3098
3099
3100	/**
3101	* Loads a GC natural unsigned integer item from the current data unit.
3102	*
3103	* @returns VBox status.
3104	* @param pSSM SSM operation handle.
3105	* @param pu Where to store the integer.
3106	*
3107	* @deprecated Silly type with an incorrect size, don't use it.
3108	*/
3109	VMMR3DECL(int) SSMR3GetGCUInt(PSSMHANDLE pSSM, PRTGCUINT pu)
3110	{
3111	AssertCompile(sizeof(RTGCPTR) == sizeof(*pu));
3112	return SSMR3GetGCPtr(pSSM, (PRTGCPTR)pu);
3113	}
3114
3115
3116	/**
3117	* Loads a GC unsigned integer register item from the current data unit.
3118	*
3119	* @returns VBox status.
3120	* @param pSSM SSM operation handle.
3121	* @param pu Where to store the integer.
3122	*/
3123	VMMR3DECL(int) SSMR3GetGCUIntReg(PSSMHANDLE pSSM, PRTGCUINTREG pu)
3124	{
3125	AssertCompile(sizeof(RTGCPTR) == sizeof(*pu));
3126	return SSMR3GetGCPtr(pSSM, (PRTGCPTR)pu);
3127	}
3128
3129
3130	/**
3131	* Loads a 32 bits GC physical address item from the current data unit.
3132	*
3133	* @returns VBox status.
3134	* @param pSSM SSM operation handle.
3135	* @param pGCPhys Where to store the GC physical address.
3136	*/
3137	VMMR3DECL(int) SSMR3GetGCPhys32(PSSMHANDLE pSSM, PRTGCPHYS32 pGCPhys)
3138	{
3139	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3140	return ssmR3Read(pSSM, pGCPhys, sizeof(*pGCPhys));
3141	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3142	return VERR_SSM_INVALID_STATE;
3143	}
3144
3145
3146	/**
3147	* Loads a 64 bits GC physical address item from the current data unit.
3148	*
3149	* @returns VBox status.
3150	* @param pSSM SSM operation handle.
3151	* @param pGCPhys Where to store the GC physical address.
3152	*/
3153	VMMR3DECL(int) SSMR3GetGCPhys64(PSSMHANDLE pSSM, PRTGCPHYS64 pGCPhys)
3154	{
3155	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3156	return ssmR3Read(pSSM, pGCPhys, sizeof(*pGCPhys));
3157	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3158	return VERR_SSM_INVALID_STATE;
3159	}
3160
3161
3162	/**
3163	* Loads a GC physical address item from the current data unit.
3164	*
3165	* @returns VBox status.
3166	* @param pSSM SSM operation handle.
3167	* @param pGCPhys Where to store the GC physical address.
3168	*/
3169	VMMR3DECL(int) SSMR3GetGCPhys(PSSMHANDLE pSSM, PRTGCPHYS pGCPhys)
3170	{
3171	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3172	{
3173	if (sizeof(*pGCPhys) != pSSM->cbGCPhys)
3174	{
3175	Assert(sizeof(pGCPhys) == sizeof(uint64_t) \|\| sizeof(pGCPhys) == sizeof(uint32_t));
3176	Assert(pSSM->cbGCPhys == sizeof(uint64_t) \|\| pSSM->cbGCPhys == sizeof(uint32_t));
3177	if (pSSM->cbGCPhys == sizeof(uint64_t))
3178	{
3179	/* 64-bit saved, 32-bit load: try truncate it. */
3180	uint64_t u64;
3181	int rc = ssmR3Read(pSSM, &u64, pSSM->cbGCPhys);
3182	if (RT_FAILURE(rc))
3183	return rc;
3184	if (u64 >= _4G)
3185	return VERR_SSM_GCPHYS_OVERFLOW;
3186	*pGCPhys = (RTGCPHYS)u64;
3187	return rc;
3188	}
3189	/* 32-bit saved, 64-bit load: clear the high part. */
3190	*pGCPhys = 0;
3191	}
3192	return ssmR3Read(pSSM, pGCPhys, pSSM->cbGCPhys);
3193	}
3194	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3195	return VERR_SSM_INVALID_STATE;
3196	}
3197
3198
3199	/**
3200	* Loads a GC virtual address item from the current data unit.
3201	*
3202	* Only applies to in the 1.1 format:
3203	* - SSMR3GetGCPtr
3204	* - SSMR3GetGCUIntPtr
3205	* - SSMR3GetGCUInt
3206	* - SSMR3GetGCUIntReg
3207	*
3208	* Put functions are not affected.
3209	*
3210	* @returns VBox status.
3211	* @param pSSM SSM operation handle.
3212	* @param cbGCPtr Size of RTGCPTR
3213	*
3214	* @remarks This interface only works with saved state version 1.1, if the
3215	* format isn't 1.1 the call will be ignored.
3216	*/
3217	VMMR3DECL(int) SSMR3SetGCPtrSize(PSSMHANDLE pSSM, unsigned cbGCPtr)
3218	{
3219	Assert(cbGCPtr == sizeof(RTGCPTR32) \|\| cbGCPtr == sizeof(RTGCPTR64));
3220	if (!pSSM->fFixedGCPtrSize)
3221	{
3222	Log(("SSMR3SetGCPtrSize: %d -> %d bytes\n", pSSM->cbGCPtr, cbGCPtr));
3223	pSSM->cbGCPtr = cbGCPtr;
3224	pSSM->fFixedGCPtrSize = true;
3225	}
3226	else if ( pSSM->cbGCPtr != cbGCPtr
3227	&& pSSM->cbFileHdr == sizeof(SSMFILEHDRV11))
3228	AssertMsgFailed(("SSMR3SetGCPtrSize: already fixed at %d bytes; requested %d bytes\n", pSSM->cbGCPtr, cbGCPtr));
3229
3230	return VINF_SUCCESS;
3231	}
3232
3233
3234	/**
3235	* Loads a GC virtual address item from the current data unit.
3236	*
3237	* @returns VBox status.
3238	* @param pSSM SSM operation handle.
3239	* @param pGCPtr Where to store the GC virtual address.
3240	*/
3241	VMMR3DECL(int) SSMR3GetGCPtr(PSSMHANDLE pSSM, PRTGCPTR pGCPtr)
3242	{
3243	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3244	{
3245	if (sizeof(*pGCPtr) != pSSM->cbGCPtr)
3246	{
3247	Assert(sizeof(pGCPtr) == sizeof(uint64_t) \|\| sizeof(pGCPtr) == sizeof(uint32_t));
3248	Assert(pSSM->cbGCPtr == sizeof(uint64_t) \|\| pSSM->cbGCPtr == sizeof(uint32_t));
3249	if (pSSM->cbGCPtr == sizeof(uint64_t))
3250	{
3251	/* 64-bit saved, 32-bit load: try truncate it. */
3252	uint64_t u64;
3253	int rc = ssmR3Read(pSSM, &u64, pSSM->cbGCPhys);
3254	if (RT_FAILURE(rc))
3255	return rc;
3256	if (u64 >= _4G)
3257	return VERR_SSM_GCPTR_OVERFLOW;
3258	*pGCPtr = (RTGCPTR)u64;
3259	return rc;
3260	}
3261	/* 32-bit saved, 64-bit load: clear the high part. */
3262	*pGCPtr = 0;
3263	}
3264	return ssmR3Read(pSSM, pGCPtr, pSSM->cbGCPtr);
3265	}
3266	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3267	return VERR_SSM_INVALID_STATE;
3268	}
3269
3270
3271	/**
3272	* Loads a GC virtual address (represented as unsigned integer) item from the current data unit.
3273	*
3274	* @returns VBox status.
3275	* @param pSSM SSM operation handle.
3276	* @param pGCPtr Where to store the GC virtual address.
3277	*/
3278	VMMR3DECL(int) SSMR3GetGCUIntPtr(PSSMHANDLE pSSM, PRTGCUINTPTR pGCPtr)
3279	{
3280	AssertCompile(sizeof(RTGCPTR) == sizeof(*pGCPtr));
3281	return SSMR3GetGCPtr(pSSM, (PRTGCPTR)pGCPtr);
3282	}
3283
3284
3285	/**
3286	* Loads an RC virtual address item from the current data unit.
3287	*
3288	* @returns VBox status.
3289	* @param pSSM SSM operation handle.
3290	* @param pRCPtr Where to store the RC virtual address.
3291	*/
3292	VMMR3DECL(int) SSMR3GetRCPtr(PSSMHANDLE pSSM, PRTRCPTR pRCPtr)
3293	{
3294	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3295	return ssmR3Read(pSSM, pRCPtr, sizeof(*pRCPtr));
3296
3297	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3298	return VERR_SSM_INVALID_STATE;
3299	}
3300
3301
3302	/**
3303	* Loads a I/O port address item from the current data unit.
3304	*
3305	* @returns VBox status.
3306	* @param pSSM SSM operation handle.
3307	* @param pIOPort Where to store the I/O port address.
3308	*/
3309	VMMR3DECL(int) SSMR3GetIOPort(PSSMHANDLE pSSM, PRTIOPORT pIOPort)
3310	{
3311	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3312	return ssmR3Read(pSSM, pIOPort, sizeof(*pIOPort));
3313	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3314	return VERR_SSM_INVALID_STATE;
3315	}
3316
3317
3318	/**
3319	* Loads a selector item from the current data unit.
3320	*
3321	* @returns VBox status.
3322	* @param pSSM SSM operation handle.
3323	* @param pSel Where to store the selector.
3324	*/
3325	VMMR3DECL(int) SSMR3GetSel(PSSMHANDLE pSSM, PRTSEL pSel)
3326	{
3327	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3328	return ssmR3Read(pSSM, pSel, sizeof(*pSel));
3329	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3330	return VERR_SSM_INVALID_STATE;
3331	}
3332
3333
3334	/**
3335	* Loads a memory item from the current data unit.
3336	*
3337	* @returns VBox status.
3338	* @param pSSM SSM operation handle.
3339	* @param pv Where to store the item.
3340	* @param cb Size of the item.
3341	*/
3342	VMMR3DECL(int) SSMR3GetMem(PSSMHANDLE pSSM, void *pv, size_t cb)
3343	{
3344	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3345	return ssmR3Read(pSSM, pv, cb);
3346	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3347	return VERR_SSM_INVALID_STATE;
3348	}
3349
3350
3351	/**
3352	* Loads a string item from the current data unit.
3353	*
3354	* @returns VBox status.
3355	* @param pSSM SSM operation handle.
3356	* @param psz Where to store the item.
3357	* @param cbMax Max size of the item (including '\\0').
3358	*/
3359	VMMR3DECL(int) SSMR3GetStrZ(PSSMHANDLE pSSM, char *psz, size_t cbMax)
3360	{
3361	return SSMR3GetStrZEx(pSSM, psz, cbMax, NULL);
3362	}
3363
3364
3365	/**
3366	* Loads a string item from the current data unit.
3367	*
3368	* @returns VBox status.
3369	* @param pSSM SSM operation handle.
3370	* @param psz Where to store the item.
3371	* @param cbMax Max size of the item (including '\\0').
3372	* @param pcbStr The length of the loaded string excluding the '\\0'. (optional)
3373	*/
3374	VMMR3DECL(int) SSMR3GetStrZEx(PSSMHANDLE pSSM, char psz, size_t cbMax, size_t pcbStr)
3375	{
3376	if (pSSM->enmOp == SSMSTATE_LOAD_EXEC \|\| pSSM->enmOp == SSMSTATE_OPEN_READ)
3377	{
3378	/* read size prefix. */
3379	uint32_t u32;
3380	int rc = SSMR3GetU32(pSSM, &u32);
3381	if (RT_SUCCESS(rc))
3382	{
3383	if (pcbStr)
3384	*pcbStr = u32;
3385	if (u32 < cbMax)
3386	{
3387	/* terminate and read string content. */
3388	psz[u32] = '\0';
3389	return ssmR3Read(pSSM, psz, u32);
3390	}
3391	return VERR_TOO_MUCH_DATA;
3392	}
3393	return rc;
3394	}
3395	AssertMsgFailed(("Invalid state %d\n", pSSM->enmOp));
3396	return VERR_SSM_INVALID_STATE;
3397	}
3398
3399
3400
3401	/**
3402	* Query what the VBox status code of the operation is.
3403	*
3404	* This can be used for putting and getting a batch of values
3405	* without bother checking the result till all the calls have
3406	* been made.
3407	*
3408	* @returns SSMAFTER enum value.
3409	* @param pSSM SSM operation handle.
3410	*/
3411	VMMR3DECL(int) SSMR3HandleGetStatus(PSSMHANDLE pSSM)
3412	{
3413	return pSSM->rc;
3414	}
3415
3416
3417	/**
3418	* Fail the load operation.
3419	*
3420	* This is mainly intended for sub item loaders (like timers) which
3421	* return code isn't necessarily heeded by the caller but is important
3422	* to SSM.
3423	*
3424	* @returns SSMAFTER enum value.
3425	* @param pSSM SSM operation handle.
3426	* @param iStatus Failure status code. This MUST be a VERR_*.
3427	*/
3428	VMMR3DECL(int) SSMR3HandleSetStatus(PSSMHANDLE pSSM, int iStatus)
3429	{
3430	if (RT_FAILURE(iStatus))
3431	{
3432	if (RT_SUCCESS(pSSM->rc))
3433	pSSM->rc = iStatus;
3434	return pSSM->rc = iStatus;
3435	}
3436	AssertMsgFailed(("iStatus=%d %Rrc\n", iStatus, iStatus));
3437	return VERR_INVALID_PARAMETER;
3438	}
3439
3440
3441	/**
3442	* Query what to do after this operation.
3443	*
3444	* @returns SSMAFTER enum value.
3445	* @param pSSM SSM operation handle.
3446	*/
3447	VMMR3DECL(SSMAFTER) SSMR3HandleGetAfter(PSSMHANDLE pSSM)
3448	{
3449	return pSSM->enmAfter;
3450	}
3451

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source: vbox/trunk/src/VBox/VMM/SSM.cpp@ 16281

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