ssm.h@ 46197

Last change on this file since 46197 was 44522, checked in by vboxsync, 12 years ago
SSM: Hide SSMR3RegisterDevice and SSMR3RegisterDriver.
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1	/** @file
2	* SSM - The Save State Manager.
3	*/
4
5	/*
6	* Copyright (C) 2006-2013 Oracle Corporation
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* The contents of this file may alternatively be used under the terms
17	* of the Common Development and Distribution License Version 1.0
18	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19	* VirtualBox OSE distribution, in which case the provisions of the
20	* CDDL are applicable instead of those of the GPL.
21	*
22	* You may elect to license modified versions of this file under the
23	* terms and conditions of either the GPL or the CDDL or both.
24	*/
25
26	#ifndef ___VBox_vmm_ssm_h
27	#define ___VBox_vmm_ssm_h
28
29	#include <VBox/types.h>
30	#include <VBox/vmm/tm.h>
31	#include <VBox/vmm/vmapi.h>
32
33
34	RT_C_DECLS_BEGIN
35
36	/** @defgroup grp_ssm The Saved State Manager API
37	* @{
38	*/
39
40	/**
41	* Determine the major version of the SSM version. If the major SSM version of two snapshots is
42	* different, the snapshots are incompatible.
43	*/
44	#define SSM_VERSION_MAJOR(ver) ((ver) & 0xffff0000)
45
46	/**
47	* Determine the minor version of the SSM version. If the major SSM version of two snapshots is
48	* the same, the code must handle incompatibilies between minor version changes (e.g. use dummy
49	* values for non-existent fields).
50	*/
51	#define SSM_VERSION_MINOR(ver) ((ver) & 0x0000ffff)
52
53	/**
54	* Determine if the major version changed between two SSM versions.
55	*/
56	#define SSM_VERSION_MAJOR_CHANGED(ver1,ver2) (SSM_VERSION_MAJOR(ver1) != SSM_VERSION_MAJOR(ver2))
57
58	/** The special value for the final pass. */
59	#define SSM_PASS_FINAL UINT32_MAX
60
61
62	#ifdef IN_RING3
63	/** @defgroup grp_ssm_r3 The SSM Host Context Ring-3 API
64	* @{
65	*/
66
67
68	/**
69	* What to do after the save/load operation.
70	*/
71	typedef enum SSMAFTER
72	{
73	/** Invalid. */
74	SSMAFTER_INVALID = 0,
75	/** Will resume the loaded state. */
76	SSMAFTER_RESUME,
77	/** Will destroy the VM after saving. */
78	SSMAFTER_DESTROY,
79	/** Will continue execution after saving the VM. */
80	SSMAFTER_CONTINUE,
81	/** Will teleport the VM.
82	* The source VM will be destroyed (then one saving), the destination VM
83	* will continue execution. */
84	SSMAFTER_TELEPORT,
85	/** Will debug the saved state.
86	* This is used to drop some of the stricter consitentcy checks so it'll
87	* load fine in the debugger or animator. */
88	SSMAFTER_DEBUG_IT,
89	/** The file was opened using SSMR3Open() and we have no idea what the plan is. */
90	SSMAFTER_OPENED
91	} SSMAFTER;
92
93
94	/** Pointer to a structure field description. */
95	typedef struct SSMFIELD *PSSMFIELD;
96	/** Pointer to a const structure field description. */
97	typedef const struct SSMFIELD *PCSSMFIELD;
98
99	/**
100	* SSMFIELD Get/Put callback function.
101	*
102	* This is call for getting and putting the field it is associated with. It's
103	* up to the callback to work the saved state correctly.
104	*
105	* @returns VBox status code.
106	*
107	* @param pSSM The saved state handle.
108	* @param pField The field that is being processed.
109	* @param pvStruct Pointer to the structure.
110	* @param fFlags SSMSTRUCT_FLAGS_XXX.
111	* @param fGetOrPut True if getting, false if putting.
112	* @param pvUser The user argument specified to SSMR3GetStructEx or
113	* SSMR3PutStructEx.
114	*/
115	typedef DECLCALLBACK(int) FNSSMFIELDGETPUT(PSSMHANDLE pSSM, const struct SSMFIELD pField, void pvStruct,
116	uint32_t fFlags, bool fGetOrPut, void *pvUser);
117	/** Pointer to a SSMFIELD Get/Put callback. */
118	typedef FNSSMFIELDGETPUT *PFNSSMFIELDGETPUT;
119
120	/**
121	* SSM field transformers.
122	*
123	* These are stored in the SSMFIELD::pfnGetPutOrTransformer and must therefore
124	* have values outside the valid pointer range.
125	*/
126	typedef enum SSMFIELDTRANS
127	{
128	/** Invalid. */
129	SSMFIELDTRANS_INVALID = 0,
130	/** No transformation. */
131	SSMFIELDTRANS_NO_TRANSFORMATION,
132	/** Guest context (GC) physical address. */
133	SSMFIELDTRANS_GCPHYS,
134	/** Guest context (GC) virtual address. */
135	SSMFIELDTRANS_GCPTR,
136	/** Raw-mode context (RC) virtual address. */
137	SSMFIELDTRANS_RCPTR,
138	/** Array of raw-mode context (RC) virtual addresses. */
139	SSMFIELDTRANS_RCPTR_ARRAY,
140	/** Host context (HC) virtual address used as a NULL indicator. See
141	* SSMFIELD_ENTRY_HCPTR_NI. */
142	SSMFIELDTRANS_HCPTR_NI,
143	/** Array of SSMFIELDTRANS_HCPTR_NI. */
144	SSMFIELDTRANS_HCPTR_NI_ARRAY,
145	/** Host context (HC) virtual address used to hold a unsigned 32-bit value. */
146	SSMFIELDTRANS_HCPTR_HACK_U32,
147	/** Load a 32-bit unsigned filed from the state and zero extend it into a 64-bit
148	* structure member. */
149	SSMFIELDTRANS_U32_ZX_U64,
150
151	/** Ignorable field. See SSMFIELD_ENTRY_IGNORE. */
152	SSMFIELDTRANS_IGNORE,
153	/** Ignorable guest context (GC) physical address. */
154	SSMFIELDTRANS_IGN_GCPHYS,
155	/** Ignorable guest context (GC) virtual address. */
156	SSMFIELDTRANS_IGN_GCPTR,
157	/** Ignorable raw-mode context (RC) virtual address. */
158	SSMFIELDTRANS_IGN_RCPTR,
159	/** Ignorable host context (HC) virtual address. */
160	SSMFIELDTRANS_IGN_HCPTR,
161
162	/** Old field.
163	* Save as zeros and skip on restore (nowhere to restore it any longer). */
164	SSMFIELDTRANS_OLD,
165	/** Old guest context (GC) physical address. */
166	SSMFIELDTRANS_OLD_GCPHYS,
167	/** Old guest context (GC) virtual address. */
168	SSMFIELDTRANS_OLD_GCPTR,
169	/** Old raw-mode context (RC) virtual address. */
170	SSMFIELDTRANS_OLD_RCPTR,
171	/** Old host context (HC) virtual address. */
172	SSMFIELDTRANS_OLD_HCPTR,
173	/** Old host context specific padding.
174	* The lower word is the size of 32-bit hosts, the upper for 64-bit hosts. */
175	SSMFIELDTRANS_OLD_PAD_HC,
176	/** Old padding specific to the 32-bit Microsoft C Compiler. */
177	SSMFIELDTRANS_OLD_PAD_MSC32,
178
179	/** Padding that differs between 32-bit and 64-bit hosts.
180	* The first byte of SSMFIELD::cb contains the size for 32-bit hosts.
181	* The second byte of SSMFIELD::cb contains the size for 64-bit hosts.
182	* The upper word of SSMFIELD::cb contains the actual field size.
183	*/
184	SSMFIELDTRANS_PAD_HC,
185	/** Padding for 32-bit hosts only.
186	* SSMFIELD::cb has the same format as for SSMFIELDTRANS_PAD_HC. */
187	SSMFIELDTRANS_PAD_HC32,
188	/** Padding for 64-bit hosts only.
189	* SSMFIELD::cb has the same format as for SSMFIELDTRANS_PAD_HC. */
190	SSMFIELDTRANS_PAD_HC64,
191	/** Automatic compiler padding that may differ between 32-bit and
192	* 64-bit hosts. SSMFIELD::cb has the same format as for
193	* SSMFIELDTRANS_PAD_HC. */
194	SSMFIELDTRANS_PAD_HC_AUTO,
195	/** Automatic compiler padding specific to the 32-bit Microsoft C
196	* compiler.
197	* SSMFIELD::cb has the same format as for SSMFIELDTRANS_PAD_HC. */
198	SSMFIELDTRANS_PAD_MSC32_AUTO
199	} SSMFIELDTRANS;
200
201	/** Tests if it's a padding field with the special SSMFIELD::cb format.
202	* @returns true / false.
203	* @param pfn The SSMFIELD::pfnGetPutOrTransformer value.
204	*/
205	#define SSMFIELDTRANS_IS_PADDING(pfn) \
206	( (uintptr_t)(pfn) >= SSMFIELDTRANS_PAD_HC && (uintptr_t)(pfn) <= SSMFIELDTRANS_PAD_MSC32_AUTO )
207
208	/** Tests if it's an entry for an old field.
209	*
210	* @returns true / false.
211	* @param pfn The SSMFIELD::pfnGetPutOrTransformer value.
212	*/
213	#define SSMFIELDTRANS_IS_OLD(pfn) \
214	( (uintptr_t)(pfn) >= SSMFIELDTRANS_OLD && (uintptr_t)(pfn) <= SSMFIELDTRANS_OLD_PAD_MSC32 )
215
216	/**
217	* A structure field description.
218	*/
219	typedef struct SSMFIELD
220	{
221	/** Getter and putter callback or transformer index. */
222	PFNSSMFIELDGETPUT pfnGetPutOrTransformer;
223	/** Field offset into the structure. */
224	uint32_t off;
225	/** The size of the field. */
226	uint32_t cb;
227	/** Field name. */
228	const char *pszName;
229	} SSMFIELD;
230
231	/** Emit a SSMFIELD array entry.
232	* @internal */
233	#define SSMFIELD_ENTRY_INT(Name, off, cb, enmTransformer) \
234	{ (PFNSSMFIELDGETPUT)(uintptr_t)(enmTransformer), (off), (cb), Name }
235	/** Emit a SSMFIELD array entry.
236	* @internal */
237	#define SSMFIELD_ENTRY_TF_INT(Type, Field, enmTransformer) \
238	SSMFIELD_ENTRY_INT(#Type "::" #Field, RT_OFFSETOF(Type, Field), RT_SIZEOFMEMB(Type, Field), enmTransformer)
239	/** Emit a SSMFIELD array entry for an old field.
240	* @internal */
241	#define SSMFIELD_ENTRY_OLD_INT(Field, cb, enmTransformer) \
242	SSMFIELD_ENTRY_INT("old::" #Field, UINT32_MAX / 2, (cb), enmTransformer)
243	/** Emit a SSMFIELD array entry for an alignment padding.
244	* @internal */
245	#define SSMFIELD_ENTRY_PAD_INT(Type, Field, cb32, cb64, enmTransformer) \
246	SSMFIELD_ENTRY_INT(#Type "::" #Field, RT_OFFSETOF(Type, Field), \
247	(RT_SIZEOFMEMB(Type, Field) << 16) \| (cb32) \| ((cb64) << 8), enmTransformer)
248	/** Emit a SSMFIELD array entry for an alignment padding.
249	* @internal */
250	#define SSMFIELD_ENTRY_PAD_OTHER_INT(Type, Field, cb32, cb64, enmTransformer) \
251	SSMFIELD_ENTRY_INT(#Type "::" #Field, UINT32_MAX / 2, 0 \| (cb32) \| ((cb64) << 8), enmTransformer)
252
253	/** Emit a SSMFIELD array entry. */
254	#define SSMFIELD_ENTRY(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_NO_TRANSFORMATION)
255	/** Emit a SSMFIELD array entry for a custom made field. This is intended
256	* for working around bitfields in old structures. */
257	#define SSMFIELD_ENTRY_CUSTOM(Field, off, cb) SSMFIELD_ENTRY_INT("custom::" #Field, off, cb, SSMFIELDTRANS_NO_TRANSFORMATION)
258	/** Emit a SSMFIELD array entry for a RTGCPHYS type. */
259	#define SSMFIELD_ENTRY_GCPHYS(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_GCPHYS)
260	/** Emit a SSMFIELD array entry for a RTGCPTR type. */
261	#define SSMFIELD_ENTRY_GCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_GCPTR)
262	/** Emit a SSMFIELD array entry for a raw-mode context pointer. */
263	#define SSMFIELD_ENTRY_RCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_RCPTR)
264	/** Emit a SSMFIELD array entry for a raw-mode context pointer. */
265	#define SSMFIELD_ENTRY_RCPTR_ARRAY(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_RCPTR_ARRAY)
266	/** Emit a SSMFIELD array entry for a ring-0 or ring-3 pointer type that is only
267	* of interest as a NULL indicator.
268	*
269	* This is always restored as a 0 (NULL) or 1 value. When
270	* SSMSTRUCT_FLAGS_DONT_IGNORE is set, the pointer will be saved in its
271	* entirety, when clear it will be saved as a boolean. */
272	#define SSMFIELD_ENTRY_HCPTR_NI(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_HCPTR_NI)
273	/** Same as SSMFIELD_ENTRY_HCPTR_NI, except it's an array of the buggers. */
274	#define SSMFIELD_ENTRY_HCPTR_NI_ARRAY(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_HCPTR_NI_ARRAY)
275	/** Emit a SSMFIELD array entry for a ring-0 or ring-3 pointer type that has
276	* been hacked such that it will never exceed 32-bit. No sign extending. */
277	#define SSMFIELD_ENTRY_HCPTR_HACK_U32(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_HCPTR_HACK_U32)
278	/** Emit a SSMFIELD array entry for loading a 32-bit field into a 64-bit
279	* structure member, zero extending the value. */
280	#define SSMFIELD_ENTRY_U32_ZX_U64(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_U32_ZX_U64)
281
282	/** Emit a SSMFIELD array entry for a field that can be ignored.
283	* It is stored as zeros if SSMSTRUCT_FLAGS_DONT_IGNORE is specified to
284	* SSMR3PutStructEx. The member is never touched upon restore. */
285	#define SSMFIELD_ENTRY_IGNORE(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGNORE)
286	/** Emit a SSMFIELD array entry for an ignorable RTGCPHYS type. */
287	#define SSMFIELD_ENTRY_IGN_GCPHYS(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_GCPHYS)
288	/** Emit a SSMFIELD array entry for an ignorable RTGCPHYS type. */
289	#define SSMFIELD_ENTRY_IGN_GCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_GCPTR)
290	/** Emit a SSMFIELD array entry for an ignorable raw-mode context pointer. */
291	#define SSMFIELD_ENTRY_IGN_RCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_RCPTR)
292	/** Emit a SSMFIELD array entry for an ignorable ring-3 or/and ring-0 pointer. */
293	#define SSMFIELD_ENTRY_IGN_HCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_HCPTR)
294
295	/** Emit a SSMFIELD array entry for an old field that should be ignored now.
296	* It is stored as zeros and skipped on load. */
297	#define SSMFIELD_ENTRY_OLD(Field, cb) SSMFIELD_ENTRY_OLD_INT(Field, cb, SSMFIELDTRANS_OLD)
298	/** Same as SSMFIELD_ENTRY_IGN_GCPHYS, except there is no structure field. */
299	#define SSMFIELD_ENTRY_OLD_GCPHYS(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTGCPHYS), SSMFIELDTRANS_OLD_GCPHYS)
300	/** Same as SSMFIELD_ENTRY_IGN_GCPTR, except there is no structure field. */
301	#define SSMFIELD_ENTRY_OLD_GCPTR(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTGCPTR), SSMFIELDTRANS_OLD_GCPTR)
302	/** Same as SSMFIELD_ENTRY_IGN_RCPTR, except there is no structure field. */
303	#define SSMFIELD_ENTRY_OLD_RCPTR(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTRCPTR), SSMFIELDTRANS_OLD_RCPTR)
304	/** Same as SSMFIELD_ENTRY_IGN_HCPTR, except there is no structure field. */
305	#define SSMFIELD_ENTRY_OLD_HCPTR(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTHCPTR), SSMFIELDTRANS_OLD_HCPTR)
306	/** Same as SSMFIELD_ENTRY_PAD_HC, except there is no structure field. */
307	#define SSMFIELD_ENTRY_OLD_PAD_HC(Field, cb32, cb64) \
308	SSMFIELD_ENTRY_OLD_INT(Field, RT_MAKE_U32((cb32), (cb64)), SSMFIELDTRANS_OLD_PAD_HC)
309	/** Same as SSMFIELD_ENTRY_PAD_HC64, except there is no structure field. */
310	#define SSMFIELD_ENTRY_OLD_PAD_HC64(Field, cb) SSMFIELD_ENTRY_OLD_PAD_HC(Field, 0, cb)
311	/** Same as SSMFIELD_ENTRY_PAD_HC32, except there is no structure field. */
312	#define SSMFIELD_ENTRY_OLD_PAD_HC32(Field, cb) SSMFIELD_ENTRY_OLD_PAD_HC(Field, cb, 0)
313	/** Same as SSMFIELD_ENTRY_PAD_HC, except there is no structure field. */
314	#define SSMFIELD_ENTRY_OLD_PAD_MSC32(Field, cb) SSMFIELD_ENTRY_OLD_INT(Field, cb, SSMFIELDTRANS_OLD_PAD_MSC32)
315
316	/** Emit a SSMFIELD array entry for a padding that differs in size between
317	* 64-bit and 32-bit hosts. */
318	#define SSMFIELD_ENTRY_PAD_HC(Type, Field, cb32, cb64) SSMFIELD_ENTRY_PAD_INT( Type, Field, cb32, cb64, SSMFIELDTRANS_PAD_HC)
319	/** Emit a SSMFIELD array entry for a padding that is exclusive to 64-bit hosts. */
320	#if HC_ARCH_BITS == 64
321	# define SSMFIELD_ENTRY_PAD_HC64(Type, Field, cb) SSMFIELD_ENTRY_PAD_INT( Type, Field, 0, cb, SSMFIELDTRANS_PAD_HC64)
322	#else
323	# define SSMFIELD_ENTRY_PAD_HC64(Type, Field, cb) SSMFIELD_ENTRY_PAD_OTHER_INT(Type, Field, 0, cb, SSMFIELDTRANS_PAD_HC64)
324	#endif
325	/** Emit a SSMFIELD array entry for a 32-bit padding for on 64-bits hosts. */
326	#if HC_ARCH_BITS == 32
327	# define SSMFIELD_ENTRY_PAD_HC32(Type, Field, cb) SSMFIELD_ENTRY_PAD_INT( Type, Field, cb, 0, SSMFIELDTRANS_PAD_HC32)
328	#else
329	# define SSMFIELD_ENTRY_PAD_HC32(Type, Field, cb) SSMFIELD_ENTRY_PAD_OTHER_INT(Type, Field, cb, 0, SSMFIELDTRANS_PAD_HC32)
330	#endif
331	/** Emit a SSMFIELD array entry for an automatic compiler padding that may
332	* differ in size between 64-bit and 32-bit hosts. */
333	#if HC_ARCH_BITS == 64
334	# define SSMFIELD_ENTRY_PAD_HC_AUTO(cb32, cb64) \
335	{ \
336	(PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_HC_AUTO), \
337	UINT32_MAX / 2, (cb64 << 16) \| (cb32) \| ((cb64) << 8), "<compiler-padding>" \
338	}
339	#else
340	# define SSMFIELD_ENTRY_PAD_HC_AUTO(cb32, cb64) \
341	{ \
342	(PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_HC_AUTO), \
343	UINT32_MAX / 2, (cb32 << 16) \| (cb32) \| ((cb64) << 8), "<compiler-padding>" \
344	}
345	#endif
346	/** Emit a SSMFIELD array entry for an automatic compiler padding that is unique
347	* to the 32-bit microsoft compiler. This is usually used together with
348	* SSMFIELD_ENTRY_PAD_HC. /
349	#if HC_ARCH_BITS == 32 && defined(_MSC_VER)
350	# define SSMFIELD_ENTRY_PAD_MSC32_AUTO(cb) \
351	{ \
352	(PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_MSC32_AUTO), \
353	UINT32_MAX / 2, ((cb) << 16) \| (cb), "<msc32-padding>" \
354	}
355	#else
356	# define SSMFIELD_ENTRY_PAD_MSC32_AUTO(cb) \
357	{ \
358	(PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_MSC32_AUTO), \
359	UINT32_MAX / 2, (cb), "<msc32-padding>" \
360	}
361	#endif
362
363	/** Emit a SSMFIELD array entry for a field with a custom callback. */
364	#define SSMFIELD_ENTRY_CALLBACK(Type, Field, pfnGetPut) \
365	{ (pfnGetPut), RT_OFFSETOF(Type, Field), RT_SIZEOFMEMB(Type, Field), #Type "::" #Field }
366	/** Emit the terminating entry of a SSMFIELD array. */
367	#define SSMFIELD_ENTRY_TERM() { (PFNSSMFIELDGETPUT)(uintptr_t)SSMFIELDTRANS_INVALID, UINT32_MAX, UINT32_MAX, NULL }
368
369
370	/** @name SSMR3GetStructEx and SSMR3PutStructEx flags.
371	* @{ */
372	/** The field descriptors must exactly cover the entire struct, A to Z. */
373	#define SSMSTRUCT_FLAGS_FULL_STRUCT RT_BIT_32(0)
374	/** No start and end markers, just the raw bits. */
375	#define SSMSTRUCT_FLAGS_NO_MARKERS RT_BIT_32(1)
376	/** Do not ignore any ignorable fields. */
377	#define SSMSTRUCT_FLAGS_DONT_IGNORE RT_BIT_32(2)
378	/** Saved using SSMR3PutMem, don't be too strict. */
379	#define SSMSTRUCT_FLAGS_SAVED_AS_MEM RT_BIT_32(3)
380	/** Band-aid for old SSMR3PutMem/SSMR3GetMem of structurs with host pointers. */
381	#define SSMSTRUCT_FLAGS_MEM_BAND_AID ( SSMSTRUCT_FLAGS_DONT_IGNORE \| SSMSTRUCT_FLAGS_FULL_STRUCT \
382	\| SSMSTRUCT_FLAGS_NO_MARKERS \| SSMSTRUCT_FLAGS_SAVED_AS_MEM)
383	/** Band-aid for old SSMR3PutMem/SSMR3GetMem of structurs with host
384	* pointers, with relaxed checks. */
385	#define SSMSTRUCT_FLAGS_MEM_BAND_AID_RELAXED ( SSMSTRUCT_FLAGS_DONT_IGNORE \
386	\| SSMSTRUCT_FLAGS_NO_MARKERS \| SSMSTRUCT_FLAGS_SAVED_AS_MEM)
387	/** Mask of the valid bits. */
388	#define SSMSTRUCT_FLAGS_VALID_MASK UINT32_C(0x0000000f)
389	/** @} */
390
391
392	/** The PDM Device callback variants.
393	* @{
394	*/
395
396	/**
397	* Prepare state live save operation.
398	*
399	* @returns VBox status code.
400	* @param pDevIns Device instance of the device which registered the data unit.
401	* @param pSSM SSM operation handle.
402	* @remarks The caller enters the device critical section prior to the call.
403	* @thread Any.
404	*/
405	typedef DECLCALLBACK(int) FNSSMDEVLIVEPREP(PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
406	/** Pointer to a FNSSMDEVLIVEPREP() function. */
407	typedef FNSSMDEVLIVEPREP *PFNSSMDEVLIVEPREP;
408
409	/**
410	* Execute state live save operation.
411	*
412	* This will be called repeatedly until all units vote that the live phase has
413	* been concluded.
414	*
415	* @returns VBox status code.
416	* @param pDevIns Device instance of the device which registered the data unit.
417	* @param pSSM SSM operation handle.
418	* @param uPass The pass.
419	* @remarks The caller enters the device critical section prior to the call.
420	* @thread Any.
421	*/
422	typedef DECLCALLBACK(int) FNSSMDEVLIVEEXEC(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass);
423	/** Pointer to a FNSSMDEVLIVEEXEC() function. */
424	typedef FNSSMDEVLIVEEXEC *PFNSSMDEVLIVEEXEC;
425
426	/**
427	* Vote on whether the live part of the saving has been concluded.
428	*
429	* The vote stops once a unit has vetoed the decision, so don't rely upon this
430	* being called every time.
431	*
432	* @returns VBox status code.
433	* @retval VINF_SUCCESS if done.
434	* @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed.
435	* @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is
436	* done and there is not need calling it again before the final pass.
437	* @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up.
438	*
439	* @param pDevIns Device instance of the device which registered the data unit.
440	* @param pSSM SSM operation handle.
441	* @param uPass The data pass.
442	* @remarks The caller enters the device critical section prior to the call.
443	* @thread Any.
444	*/
445	typedef DECLCALLBACK(int) FNSSMDEVLIVEVOTE(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass);
446	/** Pointer to a FNSSMDEVLIVEVOTE() function. */
447	typedef FNSSMDEVLIVEVOTE *PFNSSMDEVLIVEVOTE;
448
449	/**
450	* Prepare state save operation.
451	*
452	* @returns VBox status code.
453	* @param pDevIns Device instance of the device which registered the data unit.
454	* @param pSSM SSM operation handle.
455	* @remarks The caller enters the device critical section prior to the call.
456	*/
457	typedef DECLCALLBACK(int) FNSSMDEVSAVEPREP(PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
458	/** Pointer to a FNSSMDEVSAVEPREP() function. */
459	typedef FNSSMDEVSAVEPREP *PFNSSMDEVSAVEPREP;
460
461	/**
462	* Execute state save operation.
463	*
464	* @returns VBox status code.
465	* @param pDevIns Device instance of the device which registered the data unit.
466	* @param pSSM SSM operation handle.
467	* @remarks The caller enters the device critical section prior to the call.
468	*/
469	typedef DECLCALLBACK(int) FNSSMDEVSAVEEXEC(PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
470	/** Pointer to a FNSSMDEVSAVEEXEC() function. */
471	typedef FNSSMDEVSAVEEXEC *PFNSSMDEVSAVEEXEC;
472
473	/**
474	* Done state save operation.
475	*
476	* @returns VBox status code.
477	* @param pDevIns Device instance of the device which registered the data unit.
478	* @param pSSM SSM operation handle.
479	* @remarks The caller enters the device critical section prior to the call.
480	*/
481	typedef DECLCALLBACK(int) FNSSMDEVSAVEDONE(PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
482	/** Pointer to a FNSSMDEVSAVEDONE() function. */
483	typedef FNSSMDEVSAVEDONE *PFNSSMDEVSAVEDONE;
484
485	/**
486	* Prepare state load operation.
487	*
488	* @returns VBox status code.
489	* @param pDevIns Device instance of the device which registered the data unit.
490	* @param pSSM SSM operation handle.
491	* @remarks The caller enters the device critical section prior to the call.
492	*/
493	typedef DECLCALLBACK(int) FNSSMDEVLOADPREP(PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
494	/** Pointer to a FNSSMDEVLOADPREP() function. */
495	typedef FNSSMDEVLOADPREP *PFNSSMDEVLOADPREP;
496
497	/**
498	* Execute state load operation.
499	*
500	* @returns VBox status code.
501	* @param pDevIns Device instance of the device which registered the data unit.
502	* @param pSSM SSM operation handle.
503	* @param uVersion Data layout version.
504	* @param uPass The pass. This is always SSM_PASS_FINAL for units
505	* that doesn't specify a pfnSaveLive callback.
506	* @remarks The caller enters the device critical section prior to the call.
507	*/
508	typedef DECLCALLBACK(int) FNSSMDEVLOADEXEC(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
509	/** Pointer to a FNSSMDEVLOADEXEC() function. */
510	typedef FNSSMDEVLOADEXEC *PFNSSMDEVLOADEXEC;
511
512	/**
513	* Done state load operation.
514	*
515	* @returns VBox load code.
516	* @param pDevIns Device instance of the device which registered the data unit.
517	* @param pSSM SSM operation handle.
518	* @remarks The caller enters the device critical section prior to the call.
519	*/
520	typedef DECLCALLBACK(int) FNSSMDEVLOADDONE(PPDMDEVINS pDevIns, PSSMHANDLE pSSM);
521	/** Pointer to a FNSSMDEVLOADDONE() function. */
522	typedef FNSSMDEVLOADDONE *PFNSSMDEVLOADDONE;
523
524	/** @} */
525
526
527	/** The PDM USB device callback variants.
528	* @{
529	*/
530
531	/**
532	* Prepare state live save operation.
533	*
534	* @returns VBox status code.
535	* @param pUsbIns The USB device instance of the USB device which
536	* registered the data unit.
537	* @param pSSM SSM operation handle.
538	* @thread Any.
539	*/
540	typedef DECLCALLBACK(int) FNSSMUSBLIVEPREP(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM);
541	/** Pointer to a FNSSMUSBLIVEPREP() function. */
542	typedef FNSSMUSBLIVEPREP *PFNSSMUSBLIVEPREP;
543
544	/**
545	* Execute state live save operation.
546	*
547	* This will be called repeatedly until all units vote that the live phase has
548	* been concluded.
549	*
550	* @returns VBox status code.
551	* @param pUsbIns The USB device instance of the USB device which
552	* registered the data unit.
553	* @param pSSM SSM operation handle.
554	* @param uPass The pass.
555	* @thread Any.
556	*/
557	typedef DECLCALLBACK(int) FNSSMUSBLIVEEXEC(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM, uint32_t uPass);
558	/** Pointer to a FNSSMUSBLIVEEXEC() function. */
559	typedef FNSSMUSBLIVEEXEC *PFNSSMUSBLIVEEXEC;
560
561	/**
562	* Vote on whether the live part of the saving has been concluded.
563	*
564	* The vote stops once a unit has vetoed the decision, so don't rely upon this
565	* being called every time.
566	*
567	* @returns VBox status code.
568	* @retval VINF_SUCCESS if done.
569	* @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed.
570	* @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is
571	* done and there is not need calling it again before the final pass.
572	* @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up.
573	*
574	* @param pUsbIns The USB device instance of the USB device which
575	* registered the data unit.
576	* @param pSSM SSM operation handle.
577	* @param uPass The data pass.
578	* @thread Any.
579	*/
580	typedef DECLCALLBACK(int) FNSSMUSBLIVEVOTE(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM, uint32_t uPass);
581	/** Pointer to a FNSSMUSBLIVEVOTE() function. */
582	typedef FNSSMUSBLIVEVOTE *PFNSSMUSBLIVEVOTE;
583
584	/**
585	* Prepare state save operation.
586	*
587	* @returns VBox status code.
588	* @param pUsbIns The USB device instance of the USB device which
589	* registered the data unit.
590	* @param pSSM SSM operation handle.
591	*/
592	typedef DECLCALLBACK(int) FNSSMUSBSAVEPREP(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM);
593	/** Pointer to a FNSSMUSBSAVEPREP() function. */
594	typedef FNSSMUSBSAVEPREP *PFNSSMUSBSAVEPREP;
595
596	/**
597	* Execute state save operation.
598	*
599	* @returns VBox status code.
600	* @param pUsbIns The USB device instance of the USB device which
601	* registered the data unit.
602	* @param pSSM SSM operation handle.
603	*/
604	typedef DECLCALLBACK(int) FNSSMUSBSAVEEXEC(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM);
605	/** Pointer to a FNSSMUSBSAVEEXEC() function. */
606	typedef FNSSMUSBSAVEEXEC *PFNSSMUSBSAVEEXEC;
607
608	/**
609	* Done state save operation.
610	*
611	* @returns VBox status code.
612	* @param pUsbIns The USB device instance of the USB device which
613	* registered the data unit.
614	* @param pSSM SSM operation handle.
615	*/
616	typedef DECLCALLBACK(int) FNSSMUSBSAVEDONE(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM);
617	/** Pointer to a FNSSMUSBSAVEDONE() function. */
618	typedef FNSSMUSBSAVEDONE *PFNSSMUSBSAVEDONE;
619
620	/**
621	* Prepare state load operation.
622	*
623	* @returns VBox status code.
624	* @param pUsbIns The USB device instance of the USB device which
625	* registered the data unit.
626	* @param pSSM SSM operation handle.
627	*/
628	typedef DECLCALLBACK(int) FNSSMUSBLOADPREP(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM);
629	/** Pointer to a FNSSMUSBLOADPREP() function. */
630	typedef FNSSMUSBLOADPREP *PFNSSMUSBLOADPREP;
631
632	/**
633	* Execute state load operation.
634	*
635	* @returns VBox status code.
636	* @param pUsbIns The USB device instance of the USB device which
637	* registered the data unit.
638	* @param pSSM SSM operation handle.
639	* @param uVersion Data layout version.
640	* @param uPass The pass. This is always SSM_PASS_FINAL for units
641	* that doesn't specify a pfnSaveLive callback.
642	*/
643	typedef DECLCALLBACK(int) FNSSMUSBLOADEXEC(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
644	/** Pointer to a FNSSMUSBLOADEXEC() function. */
645	typedef FNSSMUSBLOADEXEC *PFNSSMUSBLOADEXEC;
646
647	/**
648	* Done state load operation.
649	*
650	* @returns VBox load code.
651	* @param pUsbIns The USB device instance of the USB device which
652	* registered the data unit.
653	* @param pSSM SSM operation handle.
654	*/
655	typedef DECLCALLBACK(int) FNSSMUSBLOADDONE(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM);
656	/** Pointer to a FNSSMUSBLOADDONE() function. */
657	typedef FNSSMUSBLOADDONE *PFNSSMUSBLOADDONE;
658
659	/** @} */
660
661
662	/** The PDM Driver callback variants.
663	* @{
664	*/
665
666	/**
667	* Prepare state live save operation.
668	*
669	* @returns VBox status code.
670	* @param pDrvIns Driver instance of the driver which registered the
671	* data unit.
672	* @param pSSM SSM operation handle.
673	* @thread Any.
674	*/
675	typedef DECLCALLBACK(int) FNSSMDRVLIVEPREP(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM);
676	/** Pointer to a FNSSMDRVLIVEPREP() function. */
677	typedef FNSSMDRVLIVEPREP *PFNSSMDRVLIVEPREP;
678
679	/**
680	* Execute state live save operation.
681	*
682	* This will be called repeatedly until all units vote that the live phase has
683	* been concluded.
684	*
685	* @returns VBox status code.
686	* @param pDrvIns Driver instance of the driver which registered the
687	* data unit.
688	* @param pSSM SSM operation handle.
689	* @param uPass The data pass.
690	* @thread Any.
691	*/
692	typedef DECLCALLBACK(int) FNSSMDRVLIVEEXEC(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM, uint32_t uPass);
693	/** Pointer to a FNSSMDRVLIVEEXEC() function. */
694	typedef FNSSMDRVLIVEEXEC *PFNSSMDRVLIVEEXEC;
695
696	/**
697	* Vote on whether the live part of the saving has been concluded.
698	*
699	* The vote stops once a unit has vetoed the decision, so don't rely upon this
700	* being called every time.
701	*
702	* @returns VBox status code.
703	* @retval VINF_SUCCESS if done.
704	* @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed.
705	* @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is
706	* done and there is not need calling it again before the final pass.
707	* @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up.
708	*
709	* @param pDrvIns Driver instance of the driver which registered the
710	* data unit.
711	* @param pSSM SSM operation handle.
712	* @param uPass The data pass.
713	* @thread Any.
714	*/
715	typedef DECLCALLBACK(int) FNSSMDRVLIVEVOTE(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM, uint32_t uPass);
716	/** Pointer to a FNSSMDRVLIVEVOTE() function. */
717	typedef FNSSMDRVLIVEVOTE *PFNSSMDRVLIVEVOTE;
718
719
720	/**
721	* Prepare state save operation.
722	*
723	* @returns VBox status code.
724	* @param pDrvIns Driver instance of the driver which registered the data unit.
725	* @param pSSM SSM operation handle.
726	*/
727	typedef DECLCALLBACK(int) FNSSMDRVSAVEPREP(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM);
728	/** Pointer to a FNSSMDRVSAVEPREP() function. */
729	typedef FNSSMDRVSAVEPREP *PFNSSMDRVSAVEPREP;
730
731	/**
732	* Execute state save operation.
733	*
734	* @returns VBox status code.
735	* @param pDrvIns Driver instance of the driver which registered the data unit.
736	* @param pSSM SSM operation handle.
737	*/
738	typedef DECLCALLBACK(int) FNSSMDRVSAVEEXEC(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM);
739	/** Pointer to a FNSSMDRVSAVEEXEC() function. */
740	typedef FNSSMDRVSAVEEXEC *PFNSSMDRVSAVEEXEC;
741
742	/**
743	* Done state save operation.
744	*
745	* @returns VBox status code.
746	* @param pDrvIns Driver instance of the driver which registered the data unit.
747	* @param pSSM SSM operation handle.
748	*/
749	typedef DECLCALLBACK(int) FNSSMDRVSAVEDONE(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM);
750	/** Pointer to a FNSSMDRVSAVEDONE() function. */
751	typedef FNSSMDRVSAVEDONE *PFNSSMDRVSAVEDONE;
752
753	/**
754	* Prepare state load operation.
755	*
756	* @returns VBox status code.
757	* @param pDrvIns Driver instance of the driver which registered the data unit.
758	* @param pSSM SSM operation handle.
759	*/
760	typedef DECLCALLBACK(int) FNSSMDRVLOADPREP(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM);
761	/** Pointer to a FNSSMDRVLOADPREP() function. */
762	typedef FNSSMDRVLOADPREP *PFNSSMDRVLOADPREP;
763
764	/**
765	* Execute state load operation.
766	*
767	* @returns VBox status code.
768	* @param pDrvIns Driver instance of the driver which registered the data unit.
769	* @param pSSM SSM operation handle.
770	* @param uVersion Data layout version.
771	* @param uPass The pass. This is always SSM_PASS_FINAL for units
772	* that doesn't specify a pfnSaveLive callback.
773	*/
774	typedef DECLCALLBACK(int) FNSSMDRVLOADEXEC(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
775	/** Pointer to a FNSSMDRVLOADEXEC() function. */
776	typedef FNSSMDRVLOADEXEC *PFNSSMDRVLOADEXEC;
777
778	/**
779	* Done state load operation.
780	*
781	* @returns VBox load code.
782	* @param pDrvIns Driver instance of the driver which registered the data unit.
783	* @param pSSM SSM operation handle.
784	*/
785	typedef DECLCALLBACK(int) FNSSMDRVLOADDONE(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM);
786	/** Pointer to a FNSSMDRVLOADDONE() function. */
787	typedef FNSSMDRVLOADDONE *PFNSSMDRVLOADDONE;
788
789	/** @} */
790
791
792	/** The internal callback variants.
793	* @{
794	*/
795
796
797	/**
798	* Prepare state live save operation.
799	*
800	* @returns VBox status code.
801	* @param pVM VM Handle.
802	* @param pSSM SSM operation handle.
803	* @thread Any.
804	*/
805	typedef DECLCALLBACK(int) FNSSMINTLIVEPREP(PVM pVM, PSSMHANDLE pSSM);
806	/** Pointer to a FNSSMINTLIVEPREP() function. */
807	typedef FNSSMINTLIVEPREP *PFNSSMINTLIVEPREP;
808
809	/**
810	* Execute state live save operation.
811	*
812	* This will be called repeatedly until all units vote that the live phase has
813	* been concluded.
814	*
815	* @returns VBox status code.
816	* @param pVM VM Handle.
817	* @param pSSM SSM operation handle.
818	* @param uPass The data pass.
819	* @thread Any.
820	*/
821	typedef DECLCALLBACK(int) FNSSMINTLIVEEXEC(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass);
822	/** Pointer to a FNSSMINTLIVEEXEC() function. */
823	typedef FNSSMINTLIVEEXEC *PFNSSMINTLIVEEXEC;
824
825	/**
826	* Vote on whether the live part of the saving has been concluded.
827	*
828	* The vote stops once a unit has vetoed the decision, so don't rely upon this
829	* being called every time.
830	*
831	* @returns VBox status code.
832	* @retval VINF_SUCCESS if done.
833	* @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed.
834	* @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is
835	* done and there is not need calling it again before the final pass.
836	* @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up.
837	*
838	* @param pVM VM Handle.
839	* @param pSSM SSM operation handle.
840	* @param uPass The data pass.
841	* @thread Any.
842	*/
843	typedef DECLCALLBACK(int) FNSSMINTLIVEVOTE(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass);
844	/** Pointer to a FNSSMINTLIVEVOTE() function. */
845	typedef FNSSMINTLIVEVOTE *PFNSSMINTLIVEVOTE;
846
847	/**
848	* Prepare state save operation.
849	*
850	* @returns VBox status code.
851	* @param pVM VM Handle.
852	* @param pSSM SSM operation handle.
853	*/
854	typedef DECLCALLBACK(int) FNSSMINTSAVEPREP(PVM pVM, PSSMHANDLE pSSM);
855	/** Pointer to a FNSSMINTSAVEPREP() function. */
856	typedef FNSSMINTSAVEPREP *PFNSSMINTSAVEPREP;
857
858	/**
859	* Execute state save operation.
860	*
861	* @returns VBox status code.
862	* @param pVM VM Handle.
863	* @param pSSM SSM operation handle.
864	*/
865	typedef DECLCALLBACK(int) FNSSMINTSAVEEXEC(PVM pVM, PSSMHANDLE pSSM);
866	/** Pointer to a FNSSMINTSAVEEXEC() function. */
867	typedef FNSSMINTSAVEEXEC *PFNSSMINTSAVEEXEC;
868
869	/**
870	* Done state save operation.
871	*
872	* @returns VBox status code.
873	* @param pVM VM Handle.
874	* @param pSSM SSM operation handle.
875	*/
876	typedef DECLCALLBACK(int) FNSSMINTSAVEDONE(PVM pVM, PSSMHANDLE pSSM);
877	/** Pointer to a FNSSMINTSAVEDONE() function. */
878	typedef FNSSMINTSAVEDONE *PFNSSMINTSAVEDONE;
879
880	/**
881	* Prepare state load operation.
882	*
883	* @returns VBox status code.
884	* @param pVM VM Handle.
885	* @param pSSM SSM operation handle.
886	*/
887	typedef DECLCALLBACK(int) FNSSMINTLOADPREP(PVM pVM, PSSMHANDLE pSSM);
888	/** Pointer to a FNSSMINTLOADPREP() function. */
889	typedef FNSSMINTLOADPREP *PFNSSMINTLOADPREP;
890
891	/**
892	* Execute state load operation.
893	*
894	* @returns VBox status code.
895	* @param pVM VM Handle.
896	* @param pSSM SSM operation handle.
897	* @param uVersion Data layout version.
898	* @param uPass The pass. This is always SSM_PASS_FINAL for units
899	* that doesn't specify a pfnSaveLive callback.
900	*/
901	typedef DECLCALLBACK(int) FNSSMINTLOADEXEC(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
902	/** Pointer to a FNSSMINTLOADEXEC() function. */
903	typedef FNSSMINTLOADEXEC *PFNSSMINTLOADEXEC;
904
905	/**
906	* Done state load operation.
907	*
908	* @returns VBox load code.
909	* @param pVM VM Handle.
910	* @param pSSM SSM operation handle.
911	*/
912	typedef DECLCALLBACK(int) FNSSMINTLOADDONE(PVM pVM, PSSMHANDLE pSSM);
913	/** Pointer to a FNSSMINTLOADDONE() function. */
914	typedef FNSSMINTLOADDONE *PFNSSMINTLOADDONE;
915
916	/** @} */
917
918
919	/** The External callback variants.
920	* @{
921	*/
922
923	/**
924	* Prepare state live save operation.
925	*
926	* @returns VBox status code.
927	* @param pSSM SSM operation handle.
928	* @param pvUser User argument.
929	* @thread Any.
930	*/
931	typedef DECLCALLBACK(int) FNSSMEXTLIVEPREP(PSSMHANDLE pSSM, void *pvUser);
932	/** Pointer to a FNSSMEXTLIVEPREP() function. */
933	typedef FNSSMEXTLIVEPREP *PFNSSMEXTLIVEPREP;
934
935	/**
936	* Execute state live save operation.
937	*
938	* This will be called repeatedly until all units vote that the live phase has
939	* been concluded.
940	*
941	* @returns VBox status code.
942	* @param pSSM SSM operation handle.
943	* @param pvUser User argument.
944	* @param uPass The data pass.
945	* @thread Any.
946	*/
947	typedef DECLCALLBACK(int) FNSSMEXTLIVEEXEC(PSSMHANDLE pSSM, void *pvUser, uint32_t uPass);
948	/** Pointer to a FNSSMEXTLIVEEXEC() function. */
949	typedef FNSSMEXTLIVEEXEC *PFNSSMEXTLIVEEXEC;
950
951	/**
952	* Vote on whether the live part of the saving has been concluded.
953	*
954	* The vote stops once a unit has vetoed the decision, so don't rely upon this
955	* being called every time.
956	*
957	* @returns VBox status code.
958	* @retval VINF_SUCCESS if done.
959	* @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed.
960	* @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is
961	* done and there is not need calling it again before the final pass.
962	* @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up.
963	*
964	* @param pSSM SSM operation handle.
965	* @param pvUser User argument.
966	* @param uPass The data pass.
967	* @thread Any.
968	*/
969	typedef DECLCALLBACK(int) FNSSMEXTLIVEVOTE(PSSMHANDLE pSSM, void *pvUser, uint32_t uPass);
970	/** Pointer to a FNSSMEXTLIVEVOTE() function. */
971	typedef FNSSMEXTLIVEVOTE *PFNSSMEXTLIVEVOTE;
972
973	/**
974	* Prepare state save operation.
975	*
976	* @returns VBox status code.
977	* @param pSSM SSM operation handle.
978	* @param pvUser User argument.
979	*/
980	typedef DECLCALLBACK(int) FNSSMEXTSAVEPREP(PSSMHANDLE pSSM, void *pvUser);
981	/** Pointer to a FNSSMEXTSAVEPREP() function. */
982	typedef FNSSMEXTSAVEPREP *PFNSSMEXTSAVEPREP;
983
984	/**
985	* Execute state save operation.
986	*
987	* @param pSSM SSM operation handle.
988	* @param pvUser User argument.
989	* @author The lack of return code is for legacy reasons.
990	*/
991	typedef DECLCALLBACK(void) FNSSMEXTSAVEEXEC(PSSMHANDLE pSSM, void *pvUser);
992	/** Pointer to a FNSSMEXTSAVEEXEC() function. */
993	typedef FNSSMEXTSAVEEXEC *PFNSSMEXTSAVEEXEC;
994
995	/**
996	* Done state save operation.
997	*
998	* @returns VBox status code.
999	* @param pSSM SSM operation handle.
1000	* @param pvUser User argument.
1001	*/
1002	typedef DECLCALLBACK(int) FNSSMEXTSAVEDONE(PSSMHANDLE pSSM, void *pvUser);
1003	/** Pointer to a FNSSMEXTSAVEDONE() function. */
1004	typedef FNSSMEXTSAVEDONE *PFNSSMEXTSAVEDONE;
1005
1006	/**
1007	* Prepare state load operation.
1008	*
1009	* @returns VBox status code.
1010	* @param pSSM SSM operation handle.
1011	* @param pvUser User argument.
1012	*/
1013	typedef DECLCALLBACK(int) FNSSMEXTLOADPREP(PSSMHANDLE pSSM, void *pvUser);
1014	/** Pointer to a FNSSMEXTLOADPREP() function. */
1015	typedef FNSSMEXTLOADPREP *PFNSSMEXTLOADPREP;
1016
1017	/**
1018	* Execute state load operation.
1019	*
1020	* @returns VBox status code.
1021	* @param pSSM SSM operation handle.
1022	* @param pvUser User argument.
1023	* @param uVersion Data layout version.
1024	* @param uPass The pass. This is always SSM_PASS_FINAL for units
1025	* that doesn't specify a pfnSaveLive callback.
1026	* @remark The odd return value is for legacy reasons.
1027	*/
1028	typedef DECLCALLBACK(int) FNSSMEXTLOADEXEC(PSSMHANDLE pSSM, void *pvUser, uint32_t uVersion, uint32_t uPass);
1029	/** Pointer to a FNSSMEXTLOADEXEC() function. */
1030	typedef FNSSMEXTLOADEXEC *PFNSSMEXTLOADEXEC;
1031
1032	/**
1033	* Done state load operation.
1034	*
1035	* @returns VBox load code.
1036	* @param pSSM SSM operation handle.
1037	* @param pvUser User argument.
1038	*/
1039	typedef DECLCALLBACK(int) FNSSMEXTLOADDONE(PSSMHANDLE pSSM, void *pvUser);
1040	/** Pointer to a FNSSMEXTLOADDONE() function. */
1041	typedef FNSSMEXTLOADDONE *PFNSSMEXTLOADDONE;
1042
1043	/** @} */
1044
1045
1046	/**
1047	* SSM stream method table.
1048	*
1049	* This is used by external parties for teleporting over TCP or any other media.
1050	* SSM also uses this internally for file access, thus the 2-3 file centric
1051	* methods.
1052	*/
1053	typedef struct SSMSTRMOPS
1054	{
1055	/** Struct magic + version (SSMSTRMOPS_VERSION). */
1056	uint32_t u32Version;
1057
1058	/**
1059	* Write bytes to the stream.
1060	*
1061	* @returns VBox status code.
1062	* @param pvUser The user argument.
1063	* @param offStream The stream offset we're (supposed to be) at.
1064	* @param pvBuf Pointer to the data.
1065	* @param cbToWrite The number of bytes to write.
1066	*/
1067	DECLCALLBACKMEMBER(int, pfnWrite)(void pvUser, uint64_t offStream, const void pvBuf, size_t cbToWrite);
1068
1069	/**
1070	* Read bytes to the stream.
1071	*
1072	* @returns VBox status code.
1073	* @param pvUser The user argument.
1074	* @param offStream The stream offset we're (supposed to be) at.
1075	* @param pvBuf Where to return the bytes.
1076	* @param cbToRead The number of bytes to read.
1077	* @param pcbRead Where to return the number of bytes actually
1078	* read. This may differ from cbToRead when the
1079	* end of the stream is encountered.
1080	*/
1081	DECLCALLBACKMEMBER(int, pfnRead)(void pvUser, uint64_t offStream, void pvBuf, size_t cbToRead, size_t *pcbRead);
1082
1083	/**
1084	* Seeks in the stream.
1085	*
1086	* @returns VBox status code.
1087	* @retval VERR_NOT_SUPPORTED if the stream doesn't support this action.
1088	*
1089	* @param pvUser The user argument.
1090	* @param offSeek The seek offset.
1091	* @param uMethod RTFILE_SEEK_BEGIN, RTFILE_SEEK_END or
1092	* RTFILE_SEEK_CURRENT.
1093	* @param poffActual Where to store the new file position. Optional.
1094	*/
1095	DECLCALLBACKMEMBER(int, pfnSeek)(void pvUser, int64_t offSeek, unsigned uMethod, uint64_t poffActual);
1096
1097	/**
1098	* Get the current stream position.
1099	*
1100	* @returns The correct stream position.
1101	* @param pvUser The user argument.
1102	*/
1103	DECLCALLBACKMEMBER(uint64_t, pfnTell)(void *pvUser);
1104
1105	/**
1106	* Get the size/length of the stream.
1107	*
1108	* @returns VBox status code.
1109	* @retval VERR_NOT_SUPPORTED if the stream doesn't support this action.
1110	*
1111	* @param pvUser The user argument.
1112	* @param pcb Where to return the size/length.
1113	*/
1114	DECLCALLBACKMEMBER(int, pfnSize)(void pvUser, uint64_t pcb);
1115
1116	/**
1117	* Check if the stream is OK or not (cancelled).
1118	*
1119	* @returns VBox status code.
1120	* @param pvUser The user argument.
1121	*
1122	* @remarks The method is expected to do a LogRel on failure.
1123	*/
1124	DECLCALLBACKMEMBER(int, pfnIsOk)(void *pvUser);
1125
1126	/**
1127	* Close the stream.
1128	*
1129	* @returns VBox status code.
1130	* @param pvUser The user argument.
1131	* @param fCancelled True if the operation was cancelled.
1132	*/
1133	DECLCALLBACKMEMBER(int, pfnClose)(void *pvUser, bool fCancelled);
1134
1135	/** Struct magic + version (SSMSTRMOPS_VERSION). */
1136	uint32_t u32EndVersion;
1137	} SSMSTRMOPS;
1138	/** Struct magic + version (SSMSTRMOPS_VERSION). */
1139	#define SSMSTRMOPS_VERSION UINT32_C(0x55aa0001)
1140
1141
1142	VMMR3_INT_DECL(void) SSMR3Term(PVM pVM);
1143	VMMR3_INT_DECL(int)
1144	SSMR3RegisterDevice(PVM pVM, PPDMDEVINS pDevIns, const char *pszName, uint32_t uInstance, uint32_t uVersion,
1145	size_t cbGuess, const char *pszBefore,
1146	PFNSSMDEVLIVEPREP pfnLivePrep, PFNSSMDEVLIVEEXEC pfnLiveExec, PFNSSMDEVLIVEVOTE pfnLiveVote,
1147	PFNSSMDEVSAVEPREP pfnSavePrep, PFNSSMDEVSAVEEXEC pfnSaveExec, PFNSSMDEVSAVEDONE pfnSaveDone,
1148	PFNSSMDEVLOADPREP pfnLoadPrep, PFNSSMDEVLOADEXEC pfnLoadExec, PFNSSMDEVLOADDONE pfnLoadDone);
1149	VMMR3_INT_DECL(int)
1150	SSMR3RegisterDriver(PVM pVM, PPDMDRVINS pDrvIns, const char *pszName, uint32_t uInstance, uint32_t uVersion, size_t cbGuess,
1151	PFNSSMDRVLIVEPREP pfnLivePrep, PFNSSMDRVLIVEEXEC pfnLiveExec, PFNSSMDRVLIVEVOTE pfnLiveVote,
1152	PFNSSMDRVSAVEPREP pfnSavePrep, PFNSSMDRVSAVEEXEC pfnSaveExec, PFNSSMDRVSAVEDONE pfnSaveDone,
1153	PFNSSMDRVLOADPREP pfnLoadPrep, PFNSSMDRVLOADEXEC pfnLoadExec, PFNSSMDRVLOADDONE pfnLoadDone);
1154	VMMR3DECL(int)
1155	SSMR3RegisterInternal(PVM pVM, const char *pszName, uint32_t uInstance, uint32_t uVersion, size_t cbGuess,
1156	PFNSSMINTLIVEPREP pfnLivePrep, PFNSSMINTLIVEEXEC pfnLiveExec, PFNSSMINTLIVEVOTE pfnLiveVote,
1157	PFNSSMINTSAVEPREP pfnSavePrep, PFNSSMINTSAVEEXEC pfnSaveExec, PFNSSMINTSAVEDONE pfnSaveDone,
1158	PFNSSMINTLOADPREP pfnLoadPrep, PFNSSMINTLOADEXEC pfnLoadExec, PFNSSMINTLOADDONE pfnLoadDone);
1159	VMMR3DECL(int)
1160	SSMR3RegisterExternal(PUVM pUVM, const char *pszName, uint32_t uInstance, uint32_t uVersion, size_t cbGuess,
1161	PFNSSMEXTLIVEPREP pfnLivePrep, PFNSSMEXTLIVEEXEC pfnLiveExec, PFNSSMEXTLIVEVOTE pfnLiveVote,
1162	PFNSSMEXTSAVEPREP pfnSavePrep, PFNSSMEXTSAVEEXEC pfnSaveExec, PFNSSMEXTSAVEDONE pfnSaveDone,
1163	PFNSSMEXTLOADPREP pfnLoadPrep, PFNSSMEXTLOADEXEC pfnLoadExec, PFNSSMEXTLOADDONE pfnLoadDone, void *pvUser);
1164	VMMR3_INT_DECL(int) SSMR3DeregisterDevice(PVM pVM, PPDMDEVINS pDevIns, const char *pszName, uint32_t uInstance);
1165	VMMR3_INT_DECL(int) SSMR3DeregisterDriver(PVM pVM, PPDMDRVINS pDrvIns, const char *pszName, uint32_t uInstance);
1166	VMMR3DECL(int) SSMR3DeregisterInternal(PVM pVM, const char *pszName);
1167	VMMR3DECL(int) SSMR3DeregisterExternal(PVM pVM, const char *pszName);
1168	VMMR3DECL(int) SSMR3Save(PVM pVM, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser, SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void *pvUser);
1169	VMMR3_INT_DECL(int) SSMR3LiveSave(PVM pVM, uint32_t cMsMaxDowntime,
1170	const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOps,
1171	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void *pvProgressUser,
1172	PSSMHANDLE *ppSSM);
1173	VMMR3_INT_DECL(int) SSMR3LiveDoStep1(PSSMHANDLE pSSM);
1174	VMMR3_INT_DECL(int) SSMR3LiveDoStep2(PSSMHANDLE pSSM);
1175	VMMR3_INT_DECL(int) SSMR3LiveDone(PSSMHANDLE pSSM);
1176	VMMR3DECL(int) SSMR3Load(PVM pVM, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1177	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void *pvProgressUser);
1178	VMMR3DECL(int) SSMR3ValidateFile(const char *pszFilename, bool fChecksumIt);
1179	VMMR3DECL(int) SSMR3Open(const char pszFilename, unsigned fFlags, PSSMHANDLE ppSSM);
1180	VMMR3DECL(int) SSMR3Close(PSSMHANDLE pSSM);
1181	VMMR3DECL(int) SSMR3Seek(PSSMHANDLE pSSM, const char pszUnit, uint32_t iInstance, uint32_t piVersion);
1182	VMMR3DECL(int) SSMR3HandleGetStatus(PSSMHANDLE pSSM);
1183	VMMR3DECL(int) SSMR3HandleSetStatus(PSSMHANDLE pSSM, int iStatus);
1184	VMMR3DECL(SSMAFTER) SSMR3HandleGetAfter(PSSMHANDLE pSSM);
1185	VMMR3DECL(bool) SSMR3HandleIsLiveSave(PSSMHANDLE pSSM);
1186	VMMR3DECL(uint32_t) SSMR3HandleMaxDowntime(PSSMHANDLE pSSM);
1187	VMMR3DECL(uint32_t) SSMR3HandleHostBits(PSSMHANDLE pSSM);
1188	VMMR3DECL(uint32_t) SSMR3HandleRevision(PSSMHANDLE pSSM);
1189	VMMR3DECL(uint32_t) SSMR3HandleVersion(PSSMHANDLE pSSM);
1190	VMMR3DECL(const char *) SSMR3HandleHostOSAndArch(PSSMHANDLE pSSM);
1191	VMMR3_INT_DECL(int) SSMR3HandleSetGCPtrSize(PSSMHANDLE pSSM, unsigned cbGCPtr);
1192	VMMR3DECL(void) SSMR3HandleReportLivePercent(PSSMHANDLE pSSM, unsigned uPercent);
1193	VMMR3DECL(int) SSMR3Cancel(PUVM pUVM);
1194
1195
1196	/** Save operations.
1197	* @{
1198	*/
1199	VMMR3DECL(int) SSMR3PutStruct(PSSMHANDLE pSSM, const void *pvStruct, PCSSMFIELD paFields);
1200	VMMR3DECL(int) SSMR3PutStructEx(PSSMHANDLE pSSM, const void pvStruct, size_t cbStruct, uint32_t fFlags, PCSSMFIELD paFields, void pvUser);
1201	VMMR3DECL(int) SSMR3PutBool(PSSMHANDLE pSSM, bool fBool);
1202	VMMR3DECL(int) SSMR3PutU8(PSSMHANDLE pSSM, uint8_t u8);
1203	VMMR3DECL(int) SSMR3PutS8(PSSMHANDLE pSSM, int8_t i8);
1204	VMMR3DECL(int) SSMR3PutU16(PSSMHANDLE pSSM, uint16_t u16);
1205	VMMR3DECL(int) SSMR3PutS16(PSSMHANDLE pSSM, int16_t i16);
1206	VMMR3DECL(int) SSMR3PutU32(PSSMHANDLE pSSM, uint32_t u32);
1207	VMMR3DECL(int) SSMR3PutS32(PSSMHANDLE pSSM, int32_t i32);
1208	VMMR3DECL(int) SSMR3PutU64(PSSMHANDLE pSSM, uint64_t u64);
1209	VMMR3DECL(int) SSMR3PutS64(PSSMHANDLE pSSM, int64_t i64);
1210	VMMR3DECL(int) SSMR3PutU128(PSSMHANDLE pSSM, uint128_t u128);
1211	VMMR3DECL(int) SSMR3PutS128(PSSMHANDLE pSSM, int128_t i128);
1212	VMMR3DECL(int) SSMR3PutUInt(PSSMHANDLE pSSM, RTUINT u);
1213	VMMR3DECL(int) SSMR3PutSInt(PSSMHANDLE pSSM, RTINT i);
1214	VMMR3DECL(int) SSMR3PutGCUInt(PSSMHANDLE pSSM, RTGCUINT u);
1215	VMMR3DECL(int) SSMR3PutGCUIntReg(PSSMHANDLE pSSM, RTGCUINTREG u);
1216	VMMR3DECL(int) SSMR3PutGCPhys32(PSSMHANDLE pSSM, RTGCPHYS32 GCPhys);
1217	VMMR3DECL(int) SSMR3PutGCPhys64(PSSMHANDLE pSSM, RTGCPHYS64 GCPhys);
1218	VMMR3DECL(int) SSMR3PutGCPhys(PSSMHANDLE pSSM, RTGCPHYS GCPhys);
1219	VMMR3DECL(int) SSMR3PutGCPtr(PSSMHANDLE pSSM, RTGCPTR GCPtr);
1220	VMMR3DECL(int) SSMR3PutGCUIntPtr(PSSMHANDLE pSSM, RTGCUINTPTR GCPtr);
1221	VMMR3DECL(int) SSMR3PutRCPtr(PSSMHANDLE pSSM, RTRCPTR RCPtr);
1222	VMMR3DECL(int) SSMR3PutIOPort(PSSMHANDLE pSSM, RTIOPORT IOPort);
1223	VMMR3DECL(int) SSMR3PutSel(PSSMHANDLE pSSM, RTSEL Sel);
1224	VMMR3DECL(int) SSMR3PutMem(PSSMHANDLE pSSM, const void *pv, size_t cb);
1225	VMMR3DECL(int) SSMR3PutStrZ(PSSMHANDLE pSSM, const char *psz);
1226	/** @} */
1227
1228
1229
1230	/** Load operations.
1231	* @{
1232	*/
1233	VMMR3DECL(int) SSMR3GetStruct(PSSMHANDLE pSSM, void *pvStruct, PCSSMFIELD paFields);
1234	VMMR3DECL(int) SSMR3GetStructEx(PSSMHANDLE pSSM, void pvStruct, size_t cbStruct, uint32_t fFlags, PCSSMFIELD paFields, void pvUser);
1235	VMMR3DECL(int) SSMR3GetBool(PSSMHANDLE pSSM, bool *pfBool);
1236	VMMR3DECL(int) SSMR3GetU8(PSSMHANDLE pSSM, uint8_t *pu8);
1237	VMMR3DECL(int) SSMR3GetS8(PSSMHANDLE pSSM, int8_t *pi8);
1238	VMMR3DECL(int) SSMR3GetU16(PSSMHANDLE pSSM, uint16_t *pu16);
1239	VMMR3DECL(int) SSMR3GetS16(PSSMHANDLE pSSM, int16_t *pi16);
1240	VMMR3DECL(int) SSMR3GetU32(PSSMHANDLE pSSM, uint32_t *pu32);
1241	VMMR3DECL(int) SSMR3GetS32(PSSMHANDLE pSSM, int32_t *pi32);
1242	VMMR3DECL(int) SSMR3GetU64(PSSMHANDLE pSSM, uint64_t *pu64);
1243	VMMR3DECL(int) SSMR3GetS64(PSSMHANDLE pSSM, int64_t *pi64);
1244	VMMR3DECL(int) SSMR3GetU128(PSSMHANDLE pSSM, uint128_t *pu128);
1245	VMMR3DECL(int) SSMR3GetS128(PSSMHANDLE pSSM, int128_t *pi128);
1246	VMMR3DECL(int) SSMR3GetUInt(PSSMHANDLE pSSM, PRTUINT pu);
1247	VMMR3DECL(int) SSMR3GetSInt(PSSMHANDLE pSSM, PRTINT pi);
1248	VMMR3DECL(int) SSMR3GetGCUInt(PSSMHANDLE pSSM, PRTGCUINT pu);
1249	VMMR3DECL(int) SSMR3GetGCUIntReg(PSSMHANDLE pSSM, PRTGCUINTREG pu);
1250	VMMR3DECL(int) SSMR3GetGCPhys32(PSSMHANDLE pSSM, PRTGCPHYS32 pGCPhys);
1251	VMMR3DECL(int) SSMR3GetGCPhys64(PSSMHANDLE pSSM, PRTGCPHYS64 pGCPhys);
1252	VMMR3DECL(int) SSMR3GetGCPhys(PSSMHANDLE pSSM, PRTGCPHYS pGCPhys);
1253	VMMR3DECL(int) SSMR3GetGCPtr(PSSMHANDLE pSSM, PRTGCPTR pGCPtr);
1254	VMMR3DECL(int) SSMR3GetGCUIntPtr(PSSMHANDLE pSSM, PRTGCUINTPTR pGCPtr);
1255	VMMR3DECL(int) SSMR3GetRCPtr(PSSMHANDLE pSSM, PRTRCPTR pRCPtr);
1256	VMMR3DECL(int) SSMR3GetIOPort(PSSMHANDLE pSSM, PRTIOPORT pIOPort);
1257	VMMR3DECL(int) SSMR3GetSel(PSSMHANDLE pSSM, PRTSEL pSel);
1258	VMMR3DECL(int) SSMR3GetMem(PSSMHANDLE pSSM, void *pv, size_t cb);
1259	VMMR3DECL(int) SSMR3GetStrZ(PSSMHANDLE pSSM, char *psz, size_t cbMax);
1260	VMMR3DECL(int) SSMR3GetStrZEx(PSSMHANDLE pSSM, char psz, size_t cbMax, size_t pcbStr);
1261	VMMR3DECL(int) SSMR3GetTimer(PSSMHANDLE pSSM, PTMTIMER pTimer);
1262	VMMR3DECL(int) SSMR3Skip(PSSMHANDLE pSSM, size_t cb);
1263	VMMR3DECL(int) SSMR3SkipToEndOfUnit(PSSMHANDLE pSSM);
1264	VMMR3DECL(int) SSMR3SetLoadError(PSSMHANDLE pSSM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...);
1265	VMMR3DECL(int) SSMR3SetLoadErrorV(PSSMHANDLE pSSM, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va);
1266	VMMR3DECL(int) SSMR3SetCfgError(PSSMHANDLE pSSM, RT_SRC_POS_DECL, const char *pszFormat, ...);
1267
1268	/** @} */
1269
1270	/** @} */
1271	#endif /* IN_RING3 */
1272
1273
1274	/** @} */
1275
1276	RT_C_DECLS_END
1277
1278	#endif
1279

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source: vbox/trunk/include/VBox/vmm/ssm.h@ 46197

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