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diff --git a/include/VBox/vmm/ssm.h b/include/VBox/vmm/ssm.h new file mode 100644 index 00000000..aae70b16 --- /dev/null +++ b/include/VBox/vmm/ssm.h @@ -0,0 +1,1333 @@ +/** @file + * SSM - The Save State Manager. + */ + +/* + * Copyright (C) 2006-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef VBOX_INCLUDED_vmm_ssm_h +#define VBOX_INCLUDED_vmm_ssm_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/types.h> +#include <VBox/vmm/tm.h> +#include <VBox/vmm/vmapi.h> + + +RT_C_DECLS_BEGIN + +/** @defgroup grp_ssm The Saved State Manager API + * @ingroup grp_vmm + * @{ + */ + +/** + * Determine the major version of the SSM version. If the major SSM version of two snapshots is + * different, the snapshots are incompatible. + */ +#define SSM_VERSION_MAJOR(ver) ((ver) & 0xffff0000) + +/** + * Determine the minor version of the SSM version. If the major SSM version of two snapshots is + * the same, the code must handle incompatibilies between minor version changes (e.g. use dummy + * values for non-existent fields). + */ +#define SSM_VERSION_MINOR(ver) ((ver) & 0x0000ffff) + +/** + * Determine if the major version changed between two SSM versions. + */ +#define SSM_VERSION_MAJOR_CHANGED(ver1,ver2) (SSM_VERSION_MAJOR(ver1) != SSM_VERSION_MAJOR(ver2)) + +/** The special value for the final pass. */ +#define SSM_PASS_FINAL UINT32_MAX + + +#ifdef IN_RING3 +/** @defgroup grp_ssm_r3 The SSM Host Context Ring-3 API + * @{ + */ + + +/** + * What to do after the save/load operation. + */ +typedef enum SSMAFTER +{ + /** Invalid. */ + SSMAFTER_INVALID = 0, + /** Will resume the loaded state. */ + SSMAFTER_RESUME, + /** Will destroy the VM after saving. */ + SSMAFTER_DESTROY, + /** Will continue execution after saving the VM. */ + SSMAFTER_CONTINUE, + /** Will teleport the VM. + * The source VM will be destroyed (then one saving), the destination VM + * will continue execution. */ + SSMAFTER_TELEPORT, + /** Will debug the saved state. + * This is used to drop some of the stricter consitentcy checks so it'll + * load fine in the debugger or animator. */ + SSMAFTER_DEBUG_IT, + /** The file was opened using SSMR3Open() and we have no idea what the plan is. */ + SSMAFTER_OPENED +} SSMAFTER; + + +/** Pointer to a structure field description. */ +typedef struct SSMFIELD *PSSMFIELD; +/** Pointer to a const structure field description. */ +typedef const struct SSMFIELD *PCSSMFIELD; + +/** + * SSMFIELD Get/Put callback function. + * + * This is call for getting and putting the field it is associated with. It's + * up to the callback to work the saved state correctly. + * + * @returns VBox status code. + * + * @param pSSM The saved state handle. + * @param pField The field that is being processed. + * @param pvStruct Pointer to the structure. + * @param fFlags SSMSTRUCT_FLAGS_XXX. + * @param fGetOrPut True if getting, false if putting. + * @param pvUser The user argument specified to SSMR3GetStructEx or + * SSMR3PutStructEx. + */ +typedef DECLCALLBACK(int) FNSSMFIELDGETPUT(PSSMHANDLE pSSM, const struct SSMFIELD *pField, void *pvStruct, + uint32_t fFlags, bool fGetOrPut, void *pvUser); +/** Pointer to a SSMFIELD Get/Put callback. */ +typedef FNSSMFIELDGETPUT *PFNSSMFIELDGETPUT; + +/** + * SSM field transformers. + * + * These are stored in the SSMFIELD::pfnGetPutOrTransformer and must therefore + * have values outside the valid pointer range. + */ +typedef enum SSMFIELDTRANS +{ + /** Invalid. */ + SSMFIELDTRANS_INVALID = 0, + /** No transformation. */ + SSMFIELDTRANS_NO_TRANSFORMATION, + /** Guest context (GC) physical address. */ + SSMFIELDTRANS_GCPHYS, + /** Guest context (GC) virtual address. */ + SSMFIELDTRANS_GCPTR, + /** Raw-mode context (RC) virtual address. */ + SSMFIELDTRANS_RCPTR, + /** Array of raw-mode context (RC) virtual addresses. */ + SSMFIELDTRANS_RCPTR_ARRAY, + /** Host context (HC) virtual address used as a NULL indicator. See + * SSMFIELD_ENTRY_HCPTR_NI. */ + SSMFIELDTRANS_HCPTR_NI, + /** Array of SSMFIELDTRANS_HCPTR_NI. */ + SSMFIELDTRANS_HCPTR_NI_ARRAY, + /** Host context (HC) virtual address used to hold a unsigned 32-bit value. */ + SSMFIELDTRANS_HCPTR_HACK_U32, + /** Load a 32-bit unsigned filed from the state and zero extend it into a 64-bit + * structure member. */ + SSMFIELDTRANS_U32_ZX_U64, + + /** Ignorable field. See SSMFIELD_ENTRY_IGNORE. */ + SSMFIELDTRANS_IGNORE, + /** Ignorable guest context (GC) physical address. */ + SSMFIELDTRANS_IGN_GCPHYS, + /** Ignorable guest context (GC) virtual address. */ + SSMFIELDTRANS_IGN_GCPTR, + /** Ignorable raw-mode context (RC) virtual address. */ + SSMFIELDTRANS_IGN_RCPTR, + /** Ignorable host context (HC) virtual address. */ + SSMFIELDTRANS_IGN_HCPTR, + + /** Old field. + * Save as zeros and skip on restore (nowhere to restore it any longer). */ + SSMFIELDTRANS_OLD, + /** Old guest context (GC) physical address. */ + SSMFIELDTRANS_OLD_GCPHYS, + /** Old guest context (GC) virtual address. */ + SSMFIELDTRANS_OLD_GCPTR, + /** Old raw-mode context (RC) virtual address. */ + SSMFIELDTRANS_OLD_RCPTR, + /** Old host context (HC) virtual address. */ + SSMFIELDTRANS_OLD_HCPTR, + /** Old host context specific padding. + * The lower word is the size of 32-bit hosts, the upper for 64-bit hosts. */ + SSMFIELDTRANS_OLD_PAD_HC, + /** Old padding specific to the 32-bit Microsoft C Compiler. */ + SSMFIELDTRANS_OLD_PAD_MSC32, + + /** Padding that differs between 32-bit and 64-bit hosts. + * The first byte of SSMFIELD::cb contains the size for 32-bit hosts. + * The second byte of SSMFIELD::cb contains the size for 64-bit hosts. + * The upper word of SSMFIELD::cb contains the actual field size. + */ + SSMFIELDTRANS_PAD_HC, + /** Padding for 32-bit hosts only. + * SSMFIELD::cb has the same format as for SSMFIELDTRANS_PAD_HC. */ + SSMFIELDTRANS_PAD_HC32, + /** Padding for 64-bit hosts only. + * SSMFIELD::cb has the same format as for SSMFIELDTRANS_PAD_HC. */ + SSMFIELDTRANS_PAD_HC64, + /** Automatic compiler padding that may differ between 32-bit and + * 64-bit hosts. SSMFIELD::cb has the same format as for + * SSMFIELDTRANS_PAD_HC. */ + SSMFIELDTRANS_PAD_HC_AUTO, + /** Automatic compiler padding specific to the 32-bit Microsoft C + * compiler. + * SSMFIELD::cb has the same format as for SSMFIELDTRANS_PAD_HC. */ + SSMFIELDTRANS_PAD_MSC32_AUTO +} SSMFIELDTRANS; + +/** Tests if it's a padding field with the special SSMFIELD::cb format. + * @returns true / false. + * @param pfn The SSMFIELD::pfnGetPutOrTransformer value. + */ +#define SSMFIELDTRANS_IS_PADDING(pfn) \ + ( (uintptr_t)(pfn) >= SSMFIELDTRANS_PAD_HC && (uintptr_t)(pfn) <= SSMFIELDTRANS_PAD_MSC32_AUTO ) + +/** Tests if it's an entry for an old field. + * + * @returns true / false. + * @param pfn The SSMFIELD::pfnGetPutOrTransformer value. + */ +#define SSMFIELDTRANS_IS_OLD(pfn) \ + ( (uintptr_t)(pfn) >= SSMFIELDTRANS_OLD && (uintptr_t)(pfn) <= SSMFIELDTRANS_OLD_PAD_MSC32 ) + +/** + * A structure field description. + */ +typedef struct SSMFIELD +{ + /** Getter and putter callback or transformer index. */ + PFNSSMFIELDGETPUT pfnGetPutOrTransformer; + /** Field offset into the structure. */ + uint32_t off; + /** The size of the field. */ + uint32_t cb; + /** This field was first saved by this unit version number. */ + uint32_t uFirstVer; + /** Field name. */ + const char *pszName; +} SSMFIELD; + +/** Emit a SSMFIELD array entry. + * @internal */ +#define SSMFIELD_ENTRY_INT(Name, off, cb, enmTransformer, uFirstVer) \ + { (PFNSSMFIELDGETPUT)(uintptr_t)(enmTransformer), (off), (cb), (uFirstVer), Name } +/** Emit a SSMFIELD array entry. + * @internal */ +#define SSMFIELD_ENTRY_TF_INT(Type, Field, enmTransformer, uFirstVer) \ + SSMFIELD_ENTRY_INT(#Type "::" #Field, RT_UOFFSETOF(Type, Field), RT_SIZEOFMEMB(Type, Field), enmTransformer, uFirstVer) +/** Emit a SSMFIELD array entry for an old field. + * @internal */ +#define SSMFIELD_ENTRY_OLD_INT(Field, cb, enmTransformer) \ + SSMFIELD_ENTRY_INT("old::" #Field, UINT32_MAX / 2, (cb), enmTransformer, 0) +/** Emit a SSMFIELD array entry for an alignment padding. + * @internal */ +#define SSMFIELD_ENTRY_PAD_INT(Type, Field, cb32, cb64, enmTransformer) \ + SSMFIELD_ENTRY_INT(#Type "::" #Field, RT_UOFFSETOF(Type, Field), \ + (RT_SIZEOFMEMB(Type, Field) << 16) | (cb32) | ((cb64) << 8), enmTransformer, 0) +/** Emit a SSMFIELD array entry for an alignment padding. + * @internal */ +#define SSMFIELD_ENTRY_PAD_OTHER_INT(Type, Field, cb32, cb64, enmTransformer) \ + SSMFIELD_ENTRY_INT(#Type "::" #Field, UINT32_MAX / 2, 0 | (cb32) | ((cb64) << 8), enmTransformer, 0) + +/** Emit a SSMFIELD array entry. */ +#define SSMFIELD_ENTRY(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_NO_TRANSFORMATION, 0) +/** Emit a SSMFIELD array entry with first version. */ +#define SSMFIELD_ENTRY_VER(Type, Field, uFirstVer) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_NO_TRANSFORMATION, uFirstVer) +/** Emit a SSMFIELD array entry for a custom made field. This is intended + * for working around bitfields in old structures. */ +#define SSMFIELD_ENTRY_CUSTOM(Field, off, cb) SSMFIELD_ENTRY_INT("custom::" #Field, off, cb, \ + SSMFIELDTRANS_NO_TRANSFORMATION, 0) +/** Emit a SSMFIELD array entry for a RTGCPHYS type. */ +#define SSMFIELD_ENTRY_GCPHYS(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_GCPHYS, 0) +/** Emit a SSMFIELD array entry for a RTGCPTR type. */ +#define SSMFIELD_ENTRY_GCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_GCPTR, 0) +/** Emit a SSMFIELD array entry for a raw-mode context pointer. */ +#define SSMFIELD_ENTRY_RCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_RCPTR, 0) +/** Emit a SSMFIELD array entry for a raw-mode context pointer. */ +#define SSMFIELD_ENTRY_RCPTR_ARRAY(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_RCPTR_ARRAY, 0) +/** Emit a SSMFIELD array entry for a ring-0 or ring-3 pointer type that is only + * of interest as a NULL indicator. + * + * This is always restored as a 0 (NULL) or 1 value. When + * SSMSTRUCT_FLAGS_DONT_IGNORE is set, the pointer will be saved in its + * entirety, when clear it will be saved as a boolean. */ +#define SSMFIELD_ENTRY_HCPTR_NI(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_HCPTR_NI, 0) +/** Same as SSMFIELD_ENTRY_HCPTR_NI, except it's an array of the buggers. */ +#define SSMFIELD_ENTRY_HCPTR_NI_ARRAY(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_HCPTR_NI_ARRAY, 0) +/** Emit a SSMFIELD array entry for a ring-0 or ring-3 pointer type that has + * been hacked such that it will never exceed 32-bit. No sign extending. */ +#define SSMFIELD_ENTRY_HCPTR_HACK_U32(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_HCPTR_HACK_U32, 0) +/** Emit a SSMFIELD array entry for loading a 32-bit field into a 64-bit + * structure member, zero extending the value. */ +#define SSMFIELD_ENTRY_U32_ZX_U64(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_U32_ZX_U64, 0) + +/** Emit a SSMFIELD array entry for a field that can be ignored. + * It is stored as zeros if SSMSTRUCT_FLAGS_DONT_IGNORE is specified to + * SSMR3PutStructEx. The member is never touched upon restore. */ +#define SSMFIELD_ENTRY_IGNORE(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGNORE, 0) +/** Emit a SSMFIELD array entry for an ignorable RTGCPHYS type. */ +#define SSMFIELD_ENTRY_IGN_GCPHYS(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_GCPHYS, 0) +/** Emit a SSMFIELD array entry for an ignorable RTGCPHYS type. */ +#define SSMFIELD_ENTRY_IGN_GCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_GCPTR, 0) +/** Emit a SSMFIELD array entry for an ignorable raw-mode context pointer. */ +#define SSMFIELD_ENTRY_IGN_RCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_RCPTR, 0) +/** Emit a SSMFIELD array entry for an ignorable ring-3 or/and ring-0 pointer. */ +#define SSMFIELD_ENTRY_IGN_HCPTR(Type, Field) SSMFIELD_ENTRY_TF_INT(Type, Field, SSMFIELDTRANS_IGN_HCPTR, 0) + +/** Emit a SSMFIELD array entry for an old field that should be ignored now. + * It is stored as zeros and skipped on load. */ +#define SSMFIELD_ENTRY_OLD(Field, cb) SSMFIELD_ENTRY_OLD_INT(Field, cb, SSMFIELDTRANS_OLD) +/** Same as SSMFIELD_ENTRY_IGN_GCPHYS, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_GCPHYS(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTGCPHYS), SSMFIELDTRANS_OLD_GCPHYS) +/** Same as SSMFIELD_ENTRY_IGN_GCPTR, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_GCPTR(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTGCPTR), SSMFIELDTRANS_OLD_GCPTR) +/** Same as SSMFIELD_ENTRY_IGN_RCPTR, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_RCPTR(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTRCPTR), SSMFIELDTRANS_OLD_RCPTR) +/** Same as SSMFIELD_ENTRY_IGN_HCPTR, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_HCPTR(Field) SSMFIELD_ENTRY_OLD_INT(Field, sizeof(RTHCPTR), SSMFIELDTRANS_OLD_HCPTR) +/** Same as SSMFIELD_ENTRY_PAD_HC, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_PAD_HC(Field, cb32, cb64) \ + SSMFIELD_ENTRY_OLD_INT(Field, RT_MAKE_U32((cb32), (cb64)), SSMFIELDTRANS_OLD_PAD_HC) +/** Same as SSMFIELD_ENTRY_PAD_HC64, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_PAD_HC64(Field, cb) SSMFIELD_ENTRY_OLD_PAD_HC(Field, 0, cb) +/** Same as SSMFIELD_ENTRY_PAD_HC32, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_PAD_HC32(Field, cb) SSMFIELD_ENTRY_OLD_PAD_HC(Field, cb, 0) +/** Same as SSMFIELD_ENTRY_PAD_HC, except there is no structure field. */ +#define SSMFIELD_ENTRY_OLD_PAD_MSC32(Field, cb) SSMFIELD_ENTRY_OLD_INT(Field, cb, SSMFIELDTRANS_OLD_PAD_MSC32) + +/** Emit a SSMFIELD array entry for a padding that differs in size between + * 64-bit and 32-bit hosts. */ +#define SSMFIELD_ENTRY_PAD_HC(Type, Field, cb32, cb64) SSMFIELD_ENTRY_PAD_INT( Type, Field, cb32, cb64, SSMFIELDTRANS_PAD_HC) +/** Emit a SSMFIELD array entry for a padding that is exclusive to 64-bit hosts. */ +#if HC_ARCH_BITS == 64 +# define SSMFIELD_ENTRY_PAD_HC64(Type, Field, cb) SSMFIELD_ENTRY_PAD_INT( Type, Field, 0, cb, SSMFIELDTRANS_PAD_HC64) +#else +# define SSMFIELD_ENTRY_PAD_HC64(Type, Field, cb) SSMFIELD_ENTRY_PAD_OTHER_INT(Type, Field, 0, cb, SSMFIELDTRANS_PAD_HC64) +#endif +/** Emit a SSMFIELD array entry for a 32-bit padding for on 64-bits hosts. */ +#if HC_ARCH_BITS == 32 +# define SSMFIELD_ENTRY_PAD_HC32(Type, Field, cb) SSMFIELD_ENTRY_PAD_INT( Type, Field, cb, 0, SSMFIELDTRANS_PAD_HC32) +#else +# define SSMFIELD_ENTRY_PAD_HC32(Type, Field, cb) SSMFIELD_ENTRY_PAD_OTHER_INT(Type, Field, cb, 0, SSMFIELDTRANS_PAD_HC32) +#endif +/** Emit a SSMFIELD array entry for an automatic compiler padding that may + * differ in size between 64-bit and 32-bit hosts. */ +#if HC_ARCH_BITS == 64 +# define SSMFIELD_ENTRY_PAD_HC_AUTO(cb32, cb64) \ + { \ + (PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_HC_AUTO), \ + UINT32_MAX / 2, (cb64 << 16) | (cb32) | ((cb64) << 8), 0, "<compiler-padding>" \ + } +#else +# define SSMFIELD_ENTRY_PAD_HC_AUTO(cb32, cb64) \ + { \ + (PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_HC_AUTO), \ + UINT32_MAX / 2, (cb32 << 16) | (cb32) | ((cb64) << 8), 0, "<compiler-padding>" \ + } +#endif +/** Emit a SSMFIELD array entry for an automatic compiler padding that is unique + * to the 32-bit microsoft compiler. This is usually used together with + * SSMFIELD_ENTRY_PAD_HC*. */ +#if HC_ARCH_BITS == 32 && defined(_MSC_VER) +# define SSMFIELD_ENTRY_PAD_MSC32_AUTO(cb) \ + { \ + (PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_MSC32_AUTO), \ + UINT32_MAX / 2, ((cb) << 16) | (cb), 0, "<msc32-padding>" \ + } +#else +# define SSMFIELD_ENTRY_PAD_MSC32_AUTO(cb) \ + { \ + (PFNSSMFIELDGETPUT)(uintptr_t)(SSMFIELDTRANS_PAD_MSC32_AUTO), \ + UINT32_MAX / 2, (cb), 0, "<msc32-padding>" \ + } +#endif + +/** Emit a SSMFIELD array entry for a field with a custom callback. */ +#define SSMFIELD_ENTRY_CALLBACK(Type, Field, pfnGetPut) \ + { (pfnGetPut), RT_UOFFSETOF(Type, Field), RT_SIZEOFMEMB(Type, Field), 0, #Type "::" #Field } +/** Emit the terminating entry of a SSMFIELD array. */ +#define SSMFIELD_ENTRY_TERM() \ + { (PFNSSMFIELDGETPUT)(uintptr_t)SSMFIELDTRANS_INVALID, UINT32_MAX, UINT32_MAX, UINT32_MAX, NULL } + + +/** @name SSMR3GetStructEx and SSMR3PutStructEx flags. + * @{ */ +/** The field descriptors must exactly cover the entire struct, A to Z. */ +#define SSMSTRUCT_FLAGS_FULL_STRUCT RT_BIT_32(0) +/** No start and end markers, just the raw bits. */ +#define SSMSTRUCT_FLAGS_NO_MARKERS RT_BIT_32(1) +/** Do not ignore any ignorable fields. */ +#define SSMSTRUCT_FLAGS_DONT_IGNORE RT_BIT_32(2) +/** Saved using SSMR3PutMem, don't be too strict. */ +#define SSMSTRUCT_FLAGS_SAVED_AS_MEM RT_BIT_32(3) +/** No introductory structure marker. Use when splitting up structures. */ +#define SSMSTRUCT_FLAGS_NO_LEAD_MARKER RT_BIT_32(4) +/** No trailing structure marker. Use when splitting up structures. */ +#define SSMSTRUCT_FLAGS_NO_TAIL_MARKER RT_BIT_32(5) + +/** Band-aid for old SSMR3PutMem/SSMR3GetMem of structurs with host pointers. + * @remarks This type is normally only used up to the first changes to the + * structures take place in order to make sure the conversion from + * SSMR3PutMem to field descriptors went smoothly. Replace with + * SSMSTRUCT_FLAGS_MEM_BAND_AID_RELAXED when changing the structure. */ +#define SSMSTRUCT_FLAGS_MEM_BAND_AID ( SSMSTRUCT_FLAGS_DONT_IGNORE | SSMSTRUCT_FLAGS_FULL_STRUCT \ + | SSMSTRUCT_FLAGS_NO_MARKERS | SSMSTRUCT_FLAGS_SAVED_AS_MEM) +/** Band-aid for old SSMR3PutMem/SSMR3GetMem of structurs with host + * pointers, with relaxed checks. */ +#define SSMSTRUCT_FLAGS_MEM_BAND_AID_RELAXED ( SSMSTRUCT_FLAGS_DONT_IGNORE \ + | SSMSTRUCT_FLAGS_NO_MARKERS | SSMSTRUCT_FLAGS_SAVED_AS_MEM) +/** Mask of the valid bits. */ +#define SSMSTRUCT_FLAGS_VALID_MASK UINT32_C(0x0000003f) +/** @} */ + + +/** The PDM Device callback variants. + * @{ + */ + +/** + * Prepare state live save operation. + * + * @returns VBox status code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @remarks The caller enters the device critical section prior to the call. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMDEVLIVEPREP(PPDMDEVINS pDevIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDEVLIVEPREP() function. */ +typedef FNSSMDEVLIVEPREP *PFNSSMDEVLIVEPREP; + +/** + * Execute state live save operation. + * + * This will be called repeatedly until all units vote that the live phase has + * been concluded. + * + * @returns VBox status code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @param uPass The pass. + * @remarks The caller enters the device critical section prior to the call. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMDEVLIVEEXEC(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMDEVLIVEEXEC() function. */ +typedef FNSSMDEVLIVEEXEC *PFNSSMDEVLIVEEXEC; + +/** + * Vote on whether the live part of the saving has been concluded. + * + * The vote stops once a unit has vetoed the decision, so don't rely upon this + * being called every time. + * + * @returns VBox status code. + * @retval VINF_SUCCESS if done. + * @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed. + * @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is + * done and there is not need calling it again before the final pass. + * @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up. + * + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @param uPass The data pass. + * @remarks The caller enters the device critical section prior to the call. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMDEVLIVEVOTE(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMDEVLIVEVOTE() function. */ +typedef FNSSMDEVLIVEVOTE *PFNSSMDEVLIVEVOTE; + +/** + * Prepare state save operation. + * + * @returns VBox status code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @remarks The caller enters the device critical section prior to the call. + */ +typedef DECLCALLBACK(int) FNSSMDEVSAVEPREP(PPDMDEVINS pDevIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDEVSAVEPREP() function. */ +typedef FNSSMDEVSAVEPREP *PFNSSMDEVSAVEPREP; + +/** + * Execute state save operation. + * + * @returns VBox status code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @remarks The caller enters the device critical section prior to the call. + */ +typedef DECLCALLBACK(int) FNSSMDEVSAVEEXEC(PPDMDEVINS pDevIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDEVSAVEEXEC() function. */ +typedef FNSSMDEVSAVEEXEC *PFNSSMDEVSAVEEXEC; + +/** + * Done state save operation. + * + * @returns VBox status code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @remarks The caller enters the device critical section prior to the call. + */ +typedef DECLCALLBACK(int) FNSSMDEVSAVEDONE(PPDMDEVINS pDevIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDEVSAVEDONE() function. */ +typedef FNSSMDEVSAVEDONE *PFNSSMDEVSAVEDONE; + +/** + * Prepare state load operation. + * + * @returns VBox status code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @remarks The caller enters the device critical section prior to the call. + */ +typedef DECLCALLBACK(int) FNSSMDEVLOADPREP(PPDMDEVINS pDevIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDEVLOADPREP() function. */ +typedef FNSSMDEVLOADPREP *PFNSSMDEVLOADPREP; + +/** + * Execute state load operation. + * + * @returns VBox status code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @param uVersion Data layout version. + * @param uPass The pass. This is always SSM_PASS_FINAL for units + * that doesn't specify a pfnSaveLive callback. + * @remarks The caller enters the device critical section prior to the call. + */ +typedef DECLCALLBACK(int) FNSSMDEVLOADEXEC(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass); +/** Pointer to a FNSSMDEVLOADEXEC() function. */ +typedef FNSSMDEVLOADEXEC *PFNSSMDEVLOADEXEC; + +/** + * Done state load operation. + * + * @returns VBox load code. + * @param pDevIns Device instance of the device which registered the data unit. + * @param pSSM SSM operation handle. + * @remarks The caller enters the device critical section prior to the call. + */ +typedef DECLCALLBACK(int) FNSSMDEVLOADDONE(PPDMDEVINS pDevIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDEVLOADDONE() function. */ +typedef FNSSMDEVLOADDONE *PFNSSMDEVLOADDONE; + +/** @} */ + + +/** The PDM USB device callback variants. + * @{ + */ + +/** + * Prepare state live save operation. + * + * @returns VBox status code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMUSBLIVEPREP(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMUSBLIVEPREP() function. */ +typedef FNSSMUSBLIVEPREP *PFNSSMUSBLIVEPREP; + +/** + * Execute state live save operation. + * + * This will be called repeatedly until all units vote that the live phase has + * been concluded. + * + * @returns VBox status code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + * @param uPass The pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMUSBLIVEEXEC(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMUSBLIVEEXEC() function. */ +typedef FNSSMUSBLIVEEXEC *PFNSSMUSBLIVEEXEC; + +/** + * Vote on whether the live part of the saving has been concluded. + * + * The vote stops once a unit has vetoed the decision, so don't rely upon this + * being called every time. + * + * @returns VBox status code. + * @retval VINF_SUCCESS if done. + * @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed. + * @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is + * done and there is not need calling it again before the final pass. + * @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up. + * + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + * @param uPass The data pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMUSBLIVEVOTE(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMUSBLIVEVOTE() function. */ +typedef FNSSMUSBLIVEVOTE *PFNSSMUSBLIVEVOTE; + +/** + * Prepare state save operation. + * + * @returns VBox status code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMUSBSAVEPREP(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMUSBSAVEPREP() function. */ +typedef FNSSMUSBSAVEPREP *PFNSSMUSBSAVEPREP; + +/** + * Execute state save operation. + * + * @returns VBox status code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMUSBSAVEEXEC(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMUSBSAVEEXEC() function. */ +typedef FNSSMUSBSAVEEXEC *PFNSSMUSBSAVEEXEC; + +/** + * Done state save operation. + * + * @returns VBox status code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMUSBSAVEDONE(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMUSBSAVEDONE() function. */ +typedef FNSSMUSBSAVEDONE *PFNSSMUSBSAVEDONE; + +/** + * Prepare state load operation. + * + * @returns VBox status code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMUSBLOADPREP(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMUSBLOADPREP() function. */ +typedef FNSSMUSBLOADPREP *PFNSSMUSBLOADPREP; + +/** + * Execute state load operation. + * + * @returns VBox status code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + * @param uVersion Data layout version. + * @param uPass The pass. This is always SSM_PASS_FINAL for units + * that doesn't specify a pfnSaveLive callback. + */ +typedef DECLCALLBACK(int) FNSSMUSBLOADEXEC(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass); +/** Pointer to a FNSSMUSBLOADEXEC() function. */ +typedef FNSSMUSBLOADEXEC *PFNSSMUSBLOADEXEC; + +/** + * Done state load operation. + * + * @returns VBox load code. + * @param pUsbIns The USB device instance of the USB device which + * registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMUSBLOADDONE(PPDMUSBINS pUsbIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMUSBLOADDONE() function. */ +typedef FNSSMUSBLOADDONE *PFNSSMUSBLOADDONE; + +/** @} */ + + +/** The PDM Driver callback variants. + * @{ + */ + +/** + * Prepare state live save operation. + * + * @returns VBox status code. + * @param pDrvIns Driver instance of the driver which registered the + * data unit. + * @param pSSM SSM operation handle. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMDRVLIVEPREP(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDRVLIVEPREP() function. */ +typedef FNSSMDRVLIVEPREP *PFNSSMDRVLIVEPREP; + +/** + * Execute state live save operation. + * + * This will be called repeatedly until all units vote that the live phase has + * been concluded. + * + * @returns VBox status code. + * @param pDrvIns Driver instance of the driver which registered the + * data unit. + * @param pSSM SSM operation handle. + * @param uPass The data pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMDRVLIVEEXEC(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMDRVLIVEEXEC() function. */ +typedef FNSSMDRVLIVEEXEC *PFNSSMDRVLIVEEXEC; + +/** + * Vote on whether the live part of the saving has been concluded. + * + * The vote stops once a unit has vetoed the decision, so don't rely upon this + * being called every time. + * + * @returns VBox status code. + * @retval VINF_SUCCESS if done. + * @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed. + * @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is + * done and there is not need calling it again before the final pass. + * @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up. + * + * @param pDrvIns Driver instance of the driver which registered the + * data unit. + * @param pSSM SSM operation handle. + * @param uPass The data pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMDRVLIVEVOTE(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMDRVLIVEVOTE() function. */ +typedef FNSSMDRVLIVEVOTE *PFNSSMDRVLIVEVOTE; + + +/** + * Prepare state save operation. + * + * @returns VBox status code. + * @param pDrvIns Driver instance of the driver which registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMDRVSAVEPREP(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDRVSAVEPREP() function. */ +typedef FNSSMDRVSAVEPREP *PFNSSMDRVSAVEPREP; + +/** + * Execute state save operation. + * + * @returns VBox status code. + * @param pDrvIns Driver instance of the driver which registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMDRVSAVEEXEC(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDRVSAVEEXEC() function. */ +typedef FNSSMDRVSAVEEXEC *PFNSSMDRVSAVEEXEC; + +/** + * Done state save operation. + * + * @returns VBox status code. + * @param pDrvIns Driver instance of the driver which registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMDRVSAVEDONE(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDRVSAVEDONE() function. */ +typedef FNSSMDRVSAVEDONE *PFNSSMDRVSAVEDONE; + +/** + * Prepare state load operation. + * + * @returns VBox status code. + * @param pDrvIns Driver instance of the driver which registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMDRVLOADPREP(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDRVLOADPREP() function. */ +typedef FNSSMDRVLOADPREP *PFNSSMDRVLOADPREP; + +/** + * Execute state load operation. + * + * @returns VBox status code. + * @param pDrvIns Driver instance of the driver which registered the data unit. + * @param pSSM SSM operation handle. + * @param uVersion Data layout version. + * @param uPass The pass. This is always SSM_PASS_FINAL for units + * that doesn't specify a pfnSaveLive callback. + */ +typedef DECLCALLBACK(int) FNSSMDRVLOADEXEC(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass); +/** Pointer to a FNSSMDRVLOADEXEC() function. */ +typedef FNSSMDRVLOADEXEC *PFNSSMDRVLOADEXEC; + +/** + * Done state load operation. + * + * @returns VBox load code. + * @param pDrvIns Driver instance of the driver which registered the data unit. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMDRVLOADDONE(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM); +/** Pointer to a FNSSMDRVLOADDONE() function. */ +typedef FNSSMDRVLOADDONE *PFNSSMDRVLOADDONE; + +/** @} */ + + +/** The internal callback variants. + * @{ + */ + + +/** + * Prepare state live save operation. + * + * @returns VBox status code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMINTLIVEPREP(PVM pVM, PSSMHANDLE pSSM); +/** Pointer to a FNSSMINTLIVEPREP() function. */ +typedef FNSSMINTLIVEPREP *PFNSSMINTLIVEPREP; + +/** + * Execute state live save operation. + * + * This will be called repeatedly until all units vote that the live phase has + * been concluded. + * + * @returns VBox status code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + * @param uPass The data pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMINTLIVEEXEC(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMINTLIVEEXEC() function. */ +typedef FNSSMINTLIVEEXEC *PFNSSMINTLIVEEXEC; + +/** + * Vote on whether the live part of the saving has been concluded. + * + * The vote stops once a unit has vetoed the decision, so don't rely upon this + * being called every time. + * + * @returns VBox status code. + * @retval VINF_SUCCESS if done. + * @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed. + * @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is + * done and there is not need calling it again before the final pass. + * @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up. + * + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + * @param uPass The data pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMINTLIVEVOTE(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass); +/** Pointer to a FNSSMINTLIVEVOTE() function. */ +typedef FNSSMINTLIVEVOTE *PFNSSMINTLIVEVOTE; + +/** + * Prepare state save operation. + * + * @returns VBox status code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMINTSAVEPREP(PVM pVM, PSSMHANDLE pSSM); +/** Pointer to a FNSSMINTSAVEPREP() function. */ +typedef FNSSMINTSAVEPREP *PFNSSMINTSAVEPREP; + +/** + * Execute state save operation. + * + * @returns VBox status code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMINTSAVEEXEC(PVM pVM, PSSMHANDLE pSSM); +/** Pointer to a FNSSMINTSAVEEXEC() function. */ +typedef FNSSMINTSAVEEXEC *PFNSSMINTSAVEEXEC; + +/** + * Done state save operation. + * + * @returns VBox status code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMINTSAVEDONE(PVM pVM, PSSMHANDLE pSSM); +/** Pointer to a FNSSMINTSAVEDONE() function. */ +typedef FNSSMINTSAVEDONE *PFNSSMINTSAVEDONE; + +/** + * Prepare state load operation. + * + * @returns VBox status code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMINTLOADPREP(PVM pVM, PSSMHANDLE pSSM); +/** Pointer to a FNSSMINTLOADPREP() function. */ +typedef FNSSMINTLOADPREP *PFNSSMINTLOADPREP; + +/** + * Execute state load operation. + * + * @returns VBox status code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + * @param uVersion Data layout version. + * @param uPass The pass. This is always SSM_PASS_FINAL for units + * that doesn't specify a pfnSaveLive callback. + */ +typedef DECLCALLBACK(int) FNSSMINTLOADEXEC(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass); +/** Pointer to a FNSSMINTLOADEXEC() function. */ +typedef FNSSMINTLOADEXEC *PFNSSMINTLOADEXEC; + +/** + * Done state load operation. + * + * @returns VBox load code. + * @param pVM The cross context VM structure. + * @param pSSM SSM operation handle. + */ +typedef DECLCALLBACK(int) FNSSMINTLOADDONE(PVM pVM, PSSMHANDLE pSSM); +/** Pointer to a FNSSMINTLOADDONE() function. */ +typedef FNSSMINTLOADDONE *PFNSSMINTLOADDONE; + +/** @} */ + + +/** The External callback variants. + * @{ + */ + +/** + * Prepare state live save operation. + * + * @returns VBox status code. + * @param pSSM SSM operation handle. + * @param pvUser User argument. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMEXTLIVEPREP(PSSMHANDLE pSSM, void *pvUser); +/** Pointer to a FNSSMEXTLIVEPREP() function. */ +typedef FNSSMEXTLIVEPREP *PFNSSMEXTLIVEPREP; + +/** + * Execute state live save operation. + * + * This will be called repeatedly until all units vote that the live phase has + * been concluded. + * + * @returns VBox status code. + * @param pSSM SSM operation handle. + * @param pvUser User argument. + * @param uPass The data pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMEXTLIVEEXEC(PSSMHANDLE pSSM, void *pvUser, uint32_t uPass); +/** Pointer to a FNSSMEXTLIVEEXEC() function. */ +typedef FNSSMEXTLIVEEXEC *PFNSSMEXTLIVEEXEC; + +/** + * Vote on whether the live part of the saving has been concluded. + * + * The vote stops once a unit has vetoed the decision, so don't rely upon this + * being called every time. + * + * @returns VBox status code. + * @retval VINF_SUCCESS if done. + * @retval VINF_SSM_VOTE_FOR_ANOTHER_PASS if another pass is needed. + * @retval VINF_SSM_VOTE_DONE_DONT_CALL_AGAIN if the live saving of the unit is + * done and there is not need calling it again before the final pass. + * @retval VERR_SSM_VOTE_FOR_GIVING_UP if its time to give up. + * + * @param pSSM SSM operation handle. + * @param pvUser User argument. + * @param uPass The data pass. + * @thread Any. + */ +typedef DECLCALLBACK(int) FNSSMEXTLIVEVOTE(PSSMHANDLE pSSM, void *pvUser, uint32_t uPass); +/** Pointer to a FNSSMEXTLIVEVOTE() function. */ +typedef FNSSMEXTLIVEVOTE *PFNSSMEXTLIVEVOTE; + +/** + * Prepare state save operation. + * + * @returns VBox status code. + * @param pSSM SSM operation handle. + * @param pvUser User argument. + */ +typedef DECLCALLBACK(int) FNSSMEXTSAVEPREP(PSSMHANDLE pSSM, void *pvUser); +/** Pointer to a FNSSMEXTSAVEPREP() function. */ +typedef FNSSMEXTSAVEPREP *PFNSSMEXTSAVEPREP; + +/** + * Execute state save operation. + * + * @param pSSM SSM operation handle. + * @param pvUser User argument. + * @author The lack of return code is for legacy reasons. + */ +typedef DECLCALLBACK(void) FNSSMEXTSAVEEXEC(PSSMHANDLE pSSM, void *pvUser); +/** Pointer to a FNSSMEXTSAVEEXEC() function. */ +typedef FNSSMEXTSAVEEXEC *PFNSSMEXTSAVEEXEC; + +/** + * Done state save operation. + * + * @returns VBox status code. + * @param pSSM SSM operation handle. + * @param pvUser User argument. + */ +typedef DECLCALLBACK(int) FNSSMEXTSAVEDONE(PSSMHANDLE pSSM, void *pvUser); +/** Pointer to a FNSSMEXTSAVEDONE() function. */ +typedef FNSSMEXTSAVEDONE *PFNSSMEXTSAVEDONE; + +/** + * Prepare state load operation. + * + * @returns VBox status code. + * @param pSSM SSM operation handle. + * @param pvUser User argument. + */ +typedef DECLCALLBACK(int) FNSSMEXTLOADPREP(PSSMHANDLE pSSM, void *pvUser); +/** Pointer to a FNSSMEXTLOADPREP() function. */ +typedef FNSSMEXTLOADPREP *PFNSSMEXTLOADPREP; + +/** + * Execute state load operation. + * + * @returns VBox status code. + * @param pSSM SSM operation handle. + * @param pvUser User argument. + * @param uVersion Data layout version. + * @param uPass The pass. This is always SSM_PASS_FINAL for units + * that doesn't specify a pfnSaveLive callback. + * @remark The odd return value is for legacy reasons. + */ +typedef DECLCALLBACK(int) FNSSMEXTLOADEXEC(PSSMHANDLE pSSM, void *pvUser, uint32_t uVersion, uint32_t uPass); +/** Pointer to a FNSSMEXTLOADEXEC() function. */ +typedef FNSSMEXTLOADEXEC *PFNSSMEXTLOADEXEC; + +/** + * Done state load operation. + * + * @returns VBox load code. + * @param pSSM SSM operation handle. + * @param pvUser User argument. + */ +typedef DECLCALLBACK(int) FNSSMEXTLOADDONE(PSSMHANDLE pSSM, void *pvUser); +/** Pointer to a FNSSMEXTLOADDONE() function. */ +typedef FNSSMEXTLOADDONE *PFNSSMEXTLOADDONE; + +/** @} */ + + +/** + * SSM stream method table. + * + * This is used by external parties for teleporting over TCP or any other media. + * SSM also uses this internally for file access, thus the 2-3 file centric + * methods. + */ +typedef struct SSMSTRMOPS +{ + /** Struct magic + version (SSMSTRMOPS_VERSION). */ + uint32_t u32Version; + + /** + * Write bytes to the stream. + * + * @returns VBox status code. + * @param pvUser The user argument. + * @param offStream The stream offset we're (supposed to be) at. + * @param pvBuf Pointer to the data. + * @param cbToWrite The number of bytes to write. + */ + DECLCALLBACKMEMBER(int, pfnWrite)(void *pvUser, uint64_t offStream, const void *pvBuf, size_t cbToWrite); + + /** + * Read bytes to the stream. + * + * @returns VBox status code. + * @param pvUser The user argument. + * @param offStream The stream offset we're (supposed to be) at. + * @param pvBuf Where to return the bytes. + * @param cbToRead The number of bytes to read. + * @param pcbRead Where to return the number of bytes actually + * read. This may differ from cbToRead when the + * end of the stream is encountered. + */ + DECLCALLBACKMEMBER(int, pfnRead)(void *pvUser, uint64_t offStream, void *pvBuf, size_t cbToRead, size_t *pcbRead); + + /** + * Seeks in the stream. + * + * @returns VBox status code. + * @retval VERR_NOT_SUPPORTED if the stream doesn't support this action. + * + * @param pvUser The user argument. + * @param offSeek The seek offset. + * @param uMethod RTFILE_SEEK_BEGIN, RTFILE_SEEK_END or + * RTFILE_SEEK_CURRENT. + * @param poffActual Where to store the new file position. Optional. + */ + DECLCALLBACKMEMBER(int, pfnSeek)(void *pvUser, int64_t offSeek, unsigned uMethod, uint64_t *poffActual); + + /** + * Get the current stream position. + * + * @returns The correct stream position. + * @param pvUser The user argument. + */ + DECLCALLBACKMEMBER(uint64_t, pfnTell)(void *pvUser); + + /** + * Get the size/length of the stream. + * + * @returns VBox status code. + * @retval VERR_NOT_SUPPORTED if the stream doesn't support this action. + * + * @param pvUser The user argument. + * @param pcb Where to return the size/length. + */ + DECLCALLBACKMEMBER(int, pfnSize)(void *pvUser, uint64_t *pcb); + + /** + * Check if the stream is OK or not (cancelled). + * + * @returns VBox status code. + * @param pvUser The user argument. + * + * @remarks The method is expected to do a LogRel on failure. + */ + DECLCALLBACKMEMBER(int, pfnIsOk)(void *pvUser); + + /** + * Close the stream. + * + * @returns VBox status code. + * @param pvUser The user argument. + * @param fCancelled True if the operation was cancelled. + */ + DECLCALLBACKMEMBER(int, pfnClose)(void *pvUser, bool fCancelled); + + /** Struct magic + version (SSMSTRMOPS_VERSION). */ + uint32_t u32EndVersion; +} SSMSTRMOPS; +/** Struct magic + version (SSMSTRMOPS_VERSION). */ +#define SSMSTRMOPS_VERSION UINT32_C(0x55aa0001) + + +VMMR3_INT_DECL(void) SSMR3Term(PVM pVM); +VMMR3_INT_DECL(int) +SSMR3RegisterDevice(PVM pVM, PPDMDEVINS pDevIns, const char *pszName, uint32_t uInstance, uint32_t uVersion, + size_t cbGuess, const char *pszBefore, + PFNSSMDEVLIVEPREP pfnLivePrep, PFNSSMDEVLIVEEXEC pfnLiveExec, PFNSSMDEVLIVEVOTE pfnLiveVote, + PFNSSMDEVSAVEPREP pfnSavePrep, PFNSSMDEVSAVEEXEC pfnSaveExec, PFNSSMDEVSAVEDONE pfnSaveDone, + PFNSSMDEVLOADPREP pfnLoadPrep, PFNSSMDEVLOADEXEC pfnLoadExec, PFNSSMDEVLOADDONE pfnLoadDone); +VMMR3_INT_DECL(int) +SSMR3RegisterDriver(PVM pVM, PPDMDRVINS pDrvIns, const char *pszName, uint32_t uInstance, uint32_t uVersion, size_t cbGuess, + PFNSSMDRVLIVEPREP pfnLivePrep, PFNSSMDRVLIVEEXEC pfnLiveExec, PFNSSMDRVLIVEVOTE pfnLiveVote, + PFNSSMDRVSAVEPREP pfnSavePrep, PFNSSMDRVSAVEEXEC pfnSaveExec, PFNSSMDRVSAVEDONE pfnSaveDone, + PFNSSMDRVLOADPREP pfnLoadPrep, PFNSSMDRVLOADEXEC pfnLoadExec, PFNSSMDRVLOADDONE pfnLoadDone); +VMMR3_INT_DECL(int) +SSMR3RegisterUsb(PVM pVM, PPDMUSBINS pUsbIns, const char *pszName, uint32_t uInstance, uint32_t uVersion, size_t cbGuess, + PFNSSMUSBLIVEPREP pfnLivePrep, PFNSSMUSBLIVEEXEC pfnLiveExec, PFNSSMUSBLIVEVOTE pfnLiveVote, + PFNSSMUSBSAVEPREP pfnSavePrep, PFNSSMUSBSAVEEXEC pfnSaveExec, PFNSSMUSBSAVEDONE pfnSaveDone, + PFNSSMUSBLOADPREP pfnLoadPrep, PFNSSMUSBLOADEXEC pfnLoadExec, PFNSSMUSBLOADDONE pfnLoadDone); +VMMR3DECL(int) +SSMR3RegisterInternal(PVM pVM, const char *pszName, uint32_t uInstance, uint32_t uVersion, size_t cbGuess, + PFNSSMINTLIVEPREP pfnLivePrep, PFNSSMINTLIVEEXEC pfnLiveExec, PFNSSMINTLIVEVOTE pfnLiveVote, + PFNSSMINTSAVEPREP pfnSavePrep, PFNSSMINTSAVEEXEC pfnSaveExec, PFNSSMINTSAVEDONE pfnSaveDone, + PFNSSMINTLOADPREP pfnLoadPrep, PFNSSMINTLOADEXEC pfnLoadExec, PFNSSMINTLOADDONE pfnLoadDone); +VMMR3DECL(int) +SSMR3RegisterExternal(PUVM pUVM, const char *pszName, uint32_t uInstance, uint32_t uVersion, size_t cbGuess, + PFNSSMEXTLIVEPREP pfnLivePrep, PFNSSMEXTLIVEEXEC pfnLiveExec, PFNSSMEXTLIVEVOTE pfnLiveVote, + PFNSSMEXTSAVEPREP pfnSavePrep, PFNSSMEXTSAVEEXEC pfnSaveExec, PFNSSMEXTSAVEDONE pfnSaveDone, + PFNSSMEXTLOADPREP pfnLoadPrep, PFNSSMEXTLOADEXEC pfnLoadExec, PFNSSMEXTLOADDONE pfnLoadDone, void *pvUser); +VMMR3DECL(int) SSMR3RegisterStub(PVM pVM, const char *pszName, uint32_t uInstance); +VMMR3_INT_DECL(int) SSMR3DeregisterDevice(PVM pVM, PPDMDEVINS pDevIns, const char *pszName, uint32_t uInstance); +VMMR3_INT_DECL(int) SSMR3DeregisterDriver(PVM pVM, PPDMDRVINS pDrvIns, const char *pszName, uint32_t uInstance); +VMMR3_INT_DECL(int) SSMR3DeregisterUsb(PVM pVM, PPDMUSBINS pUsbIns, const char *pszName, uint32_t uInstance); +VMMR3DECL(int) SSMR3DeregisterInternal(PVM pVM, const char *pszName); +VMMR3DECL(int) SSMR3DeregisterExternal(PVM pVM, const char *pszName); +VMMR3DECL(int) SSMR3Save(PVM pVM, const char *pszFilename, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser, SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void *pvUser); +VMMR3_INT_DECL(int) SSMR3LiveSave(PVM pVM, uint32_t cMsMaxDowntime, + const char *pszFilename, PCSSMSTRMOPS pStreamOps, void *pvStreamOps, + SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void *pvProgressUser, + PSSMHANDLE *ppSSM); +VMMR3_INT_DECL(int) SSMR3LiveDoStep1(PSSMHANDLE pSSM); +VMMR3_INT_DECL(int) SSMR3LiveDoStep2(PSSMHANDLE pSSM); +VMMR3_INT_DECL(int) SSMR3LiveDone(PSSMHANDLE pSSM); +VMMR3DECL(int) SSMR3Load(PVM pVM, const char *pszFilename, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser, + SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void *pvProgressUser); +VMMR3DECL(int) SSMR3ValidateFile(const char *pszFilename, bool fChecksumIt); +VMMR3DECL(int) SSMR3Open(const char *pszFilename, unsigned fFlags, PSSMHANDLE *ppSSM); +VMMR3DECL(int) SSMR3Close(PSSMHANDLE pSSM); +VMMR3DECL(int) SSMR3Seek(PSSMHANDLE pSSM, const char *pszUnit, uint32_t iInstance, uint32_t *piVersion); +VMMR3DECL(int) SSMR3HandleGetStatus(PSSMHANDLE pSSM); +VMMR3DECL(int) SSMR3HandleSetStatus(PSSMHANDLE pSSM, int iStatus); +VMMR3DECL(SSMAFTER) SSMR3HandleGetAfter(PSSMHANDLE pSSM); +VMMR3DECL(bool) SSMR3HandleIsLiveSave(PSSMHANDLE pSSM); +VMMR3DECL(uint32_t) SSMR3HandleMaxDowntime(PSSMHANDLE pSSM); +VMMR3DECL(uint32_t) SSMR3HandleHostBits(PSSMHANDLE pSSM); +VMMR3DECL(uint32_t) SSMR3HandleRevision(PSSMHANDLE pSSM); +VMMR3DECL(uint32_t) SSMR3HandleVersion(PSSMHANDLE pSSM); +VMMR3DECL(const char *) SSMR3HandleHostOSAndArch(PSSMHANDLE pSSM); +VMMR3_INT_DECL(int) SSMR3HandleSetGCPtrSize(PSSMHANDLE pSSM, unsigned cbGCPtr); +VMMR3DECL(void) SSMR3HandleReportLivePercent(PSSMHANDLE pSSM, unsigned uPercent); +#ifdef DEBUG +VMMR3DECL(uint64_t) SSMR3HandleTellInUnit(PSSMHANDLE pSSM); +#endif +VMMR3DECL(int) SSMR3Cancel(PUVM pUVM); + + +/** Save operations. + * @{ + */ +VMMR3DECL(int) SSMR3PutStruct(PSSMHANDLE pSSM, const void *pvStruct, PCSSMFIELD paFields); +VMMR3DECL(int) SSMR3PutStructEx(PSSMHANDLE pSSM, const void *pvStruct, size_t cbStruct, uint32_t fFlags, PCSSMFIELD paFields, void *pvUser); +VMMR3DECL(int) SSMR3PutBool(PSSMHANDLE pSSM, bool fBool); +VMMR3DECL(int) SSMR3PutU8(PSSMHANDLE pSSM, uint8_t u8); +VMMR3DECL(int) SSMR3PutS8(PSSMHANDLE pSSM, int8_t i8); +VMMR3DECL(int) SSMR3PutU16(PSSMHANDLE pSSM, uint16_t u16); +VMMR3DECL(int) SSMR3PutS16(PSSMHANDLE pSSM, int16_t i16); +VMMR3DECL(int) SSMR3PutU32(PSSMHANDLE pSSM, uint32_t u32); +VMMR3DECL(int) SSMR3PutS32(PSSMHANDLE pSSM, int32_t i32); +VMMR3DECL(int) SSMR3PutU64(PSSMHANDLE pSSM, uint64_t u64); +VMMR3DECL(int) SSMR3PutS64(PSSMHANDLE pSSM, int64_t i64); +VMMR3DECL(int) SSMR3PutU128(PSSMHANDLE pSSM, uint128_t u128); +VMMR3DECL(int) SSMR3PutS128(PSSMHANDLE pSSM, int128_t i128); +VMMR3DECL(int) SSMR3PutUInt(PSSMHANDLE pSSM, RTUINT u); +VMMR3DECL(int) SSMR3PutSInt(PSSMHANDLE pSSM, RTINT i); +VMMR3DECL(int) SSMR3PutGCUInt(PSSMHANDLE pSSM, RTGCUINT u); +VMMR3DECL(int) SSMR3PutGCUIntReg(PSSMHANDLE pSSM, RTGCUINTREG u); +VMMR3DECL(int) SSMR3PutGCPhys32(PSSMHANDLE pSSM, RTGCPHYS32 GCPhys); +VMMR3DECL(int) SSMR3PutGCPhys64(PSSMHANDLE pSSM, RTGCPHYS64 GCPhys); +VMMR3DECL(int) SSMR3PutGCPhys(PSSMHANDLE pSSM, RTGCPHYS GCPhys); +VMMR3DECL(int) SSMR3PutGCPtr(PSSMHANDLE pSSM, RTGCPTR GCPtr); +VMMR3DECL(int) SSMR3PutGCUIntPtr(PSSMHANDLE pSSM, RTGCUINTPTR GCPtr); +VMMR3DECL(int) SSMR3PutRCPtr(PSSMHANDLE pSSM, RTRCPTR RCPtr); +VMMR3DECL(int) SSMR3PutIOPort(PSSMHANDLE pSSM, RTIOPORT IOPort); +VMMR3DECL(int) SSMR3PutSel(PSSMHANDLE pSSM, RTSEL Sel); +VMMR3DECL(int) SSMR3PutMem(PSSMHANDLE pSSM, const void *pv, size_t cb); +VMMR3DECL(int) SSMR3PutStrZ(PSSMHANDLE pSSM, const char *psz); +/** @} */ + + + +/** Load operations. + * @{ + */ +VMMR3DECL(int) SSMR3GetStruct(PSSMHANDLE pSSM, void *pvStruct, PCSSMFIELD paFields); +VMMR3DECL(int) SSMR3GetStructEx(PSSMHANDLE pSSM, void *pvStruct, size_t cbStruct, uint32_t fFlags, PCSSMFIELD paFields, void *pvUser); +VMMR3DECL(int) SSMR3GetBool(PSSMHANDLE pSSM, bool *pfBool); +VMMR3DECL(int) SSMR3GetBoolV(PSSMHANDLE pSSM, bool volatile *pfBool); +VMMR3DECL(int) SSMR3GetU8(PSSMHANDLE pSSM, uint8_t *pu8); +VMMR3DECL(int) SSMR3GetU8V(PSSMHANDLE pSSM, uint8_t volatile *pu8); +VMMR3DECL(int) SSMR3GetS8(PSSMHANDLE pSSM, int8_t *pi8); +VMMR3DECL(int) SSMR3GetS8V(PSSMHANDLE pSSM, int8_t volatile *pi8); +VMMR3DECL(int) SSMR3GetU16(PSSMHANDLE pSSM, uint16_t *pu16); +VMMR3DECL(int) SSMR3GetU16V(PSSMHANDLE pSSM, uint16_t volatile *pu16); +VMMR3DECL(int) SSMR3GetS16(PSSMHANDLE pSSM, int16_t *pi16); +VMMR3DECL(int) SSMR3GetS16V(PSSMHANDLE pSSM, int16_t volatile *pi16); +VMMR3DECL(int) SSMR3GetU32(PSSMHANDLE pSSM, uint32_t *pu32); +VMMR3DECL(int) SSMR3GetU32V(PSSMHANDLE pSSM, uint32_t volatile *pu32); +VMMR3DECL(int) SSMR3GetS32(PSSMHANDLE pSSM, int32_t *pi32); +VMMR3DECL(int) SSMR3GetS32V(PSSMHANDLE pSSM, int32_t volatile *pi32); +VMMR3DECL(int) SSMR3GetU64(PSSMHANDLE pSSM, uint64_t *pu64); +VMMR3DECL(int) SSMR3GetU64V(PSSMHANDLE pSSM, uint64_t volatile *pu64); +VMMR3DECL(int) SSMR3GetS64(PSSMHANDLE pSSM, int64_t *pi64); +VMMR3DECL(int) SSMR3GetS64V(PSSMHANDLE pSSM, int64_t volatile *pi64); +VMMR3DECL(int) SSMR3GetU128(PSSMHANDLE pSSM, uint128_t *pu128); +VMMR3DECL(int) SSMR3GetU128V(PSSMHANDLE pSSM, uint128_t volatile *pu128); +VMMR3DECL(int) SSMR3GetS128(PSSMHANDLE pSSM, int128_t *pi128); +VMMR3DECL(int) SSMR3GetS128V(PSSMHANDLE pSSM, int128_t volatile *pi128); +VMMR3DECL(int) SSMR3GetGCPhys32(PSSMHANDLE pSSM, PRTGCPHYS32 pGCPhys); +VMMR3DECL(int) SSMR3GetGCPhys32V(PSSMHANDLE pSSM, RTGCPHYS32 volatile *pGCPhys); +VMMR3DECL(int) SSMR3GetGCPhys64(PSSMHANDLE pSSM, PRTGCPHYS64 pGCPhys); +VMMR3DECL(int) SSMR3GetGCPhys64V(PSSMHANDLE pSSM, RTGCPHYS64 volatile *pGCPhys); +VMMR3DECL(int) SSMR3GetGCPhys(PSSMHANDLE pSSM, PRTGCPHYS pGCPhys); +VMMR3DECL(int) SSMR3GetGCPhysV(PSSMHANDLE pSSM, RTGCPHYS volatile *pGCPhys); +VMMR3DECL(int) SSMR3GetUInt(PSSMHANDLE pSSM, PRTUINT pu); +VMMR3DECL(int) SSMR3GetSInt(PSSMHANDLE pSSM, PRTINT pi); +VMMR3DECL(int) SSMR3GetGCUInt(PSSMHANDLE pSSM, PRTGCUINT pu); +VMMR3DECL(int) SSMR3GetGCUIntReg(PSSMHANDLE pSSM, PRTGCUINTREG pu); +VMMR3DECL(int) SSMR3GetGCPtr(PSSMHANDLE pSSM, PRTGCPTR pGCPtr); +VMMR3DECL(int) SSMR3GetGCUIntPtr(PSSMHANDLE pSSM, PRTGCUINTPTR pGCPtr); +VMMR3DECL(int) SSMR3GetRCPtr(PSSMHANDLE pSSM, PRTRCPTR pRCPtr); +VMMR3DECL(int) SSMR3GetIOPort(PSSMHANDLE pSSM, PRTIOPORT pIOPort); +VMMR3DECL(int) SSMR3GetSel(PSSMHANDLE pSSM, PRTSEL pSel); +VMMR3DECL(int) SSMR3GetMem(PSSMHANDLE pSSM, void *pv, size_t cb); +VMMR3DECL(int) SSMR3GetStrZ(PSSMHANDLE pSSM, char *psz, size_t cbMax); +VMMR3DECL(int) SSMR3GetStrZEx(PSSMHANDLE pSSM, char *psz, size_t cbMax, size_t *pcbStr); +VMMR3DECL(int) SSMR3GetTimer(PSSMHANDLE pSSM, PTMTIMER pTimer); +VMMR3DECL(int) SSMR3Skip(PSSMHANDLE pSSM, size_t cb); +VMMR3DECL(int) SSMR3SkipToEndOfUnit(PSSMHANDLE pSSM); +VMMR3DECL(int) SSMR3SetLoadError(PSSMHANDLE pSSM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...) RT_IPRT_FORMAT_ATTR(6, 7); +VMMR3DECL(int) SSMR3SetLoadErrorV(PSSMHANDLE pSSM, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va) RT_IPRT_FORMAT_ATTR(6, 0); +VMMR3DECL(int) SSMR3SetCfgError(PSSMHANDLE pSSM, RT_SRC_POS_DECL, const char *pszFormat, ...) RT_IPRT_FORMAT_ATTR(5, 6); +VMMR3DECL(int) SSMR3SetCfgErrorV(PSSMHANDLE pSSM, RT_SRC_POS_DECL, const char *pszFormat, va_list va) RT_IPRT_FORMAT_ATTR(5, 0); + +/** Wrapper around SSMR3GetU32 for simplifying getting enum values saved as uint32_t. */ +# define SSM_GET_ENUM32_RET(a_pSSM, a_enmDst, a_EnumType) \ + do { \ + uint32_t u32GetEnumTmp = 0; \ + int rcGetEnum32Tmp = SSMR3GetU32((a_pSSM), &u32GetEnumTmp); \ + AssertRCReturn(rcGetEnum32Tmp, rcGetEnum32Tmp); \ + (a_enmDst) = (a_EnumType)u32GetEnumTmp; \ + AssertCompile(sizeof(a_EnumType) == sizeof(u32GetEnumTmp)); \ + } while (0) + +/** @} */ + +/** @} */ +#endif /* IN_RING3 */ + + +/** @} */ + +RT_C_DECLS_END + +#endif /* !VBOX_INCLUDED_vmm_ssm_h */ + |