VirtualBox

Changeset 73249 in vbox for trunk/src


Ignore:
Timestamp:
Jul 19, 2018 5:29:09 PM (7 years ago)
Author:
vboxsync
svn:sync-xref-src-repo-rev:
123855
Message:

PGM: Working on eliminating PGMMODEDATA and the corresponding PGMCPU section so we can do mode switching in ring-0. This third part starts dealing with shadow+guest paging pointers. bugref:9044

Location:
trunk/src/VBox/VMM
Files:
4 edited

Legend:

Unmodified
Added
Removed

  • trunk/src/VBox/VMM/VMMAll/PGMAll.cpp

    r73246 r73249  
    221221
    222222/* Guest - protected mode (only used for AMD-V nested paging in 64 bits mode) */
     223/** @todo retire this hack. */
    223224# define PGM_GST_TYPE               PGM_TYPE_PROT
    224225# define PGM_GST_NAME(name)         PGM_GST_NAME_PROT(name)
    … …  
    597598
    598599
    599 /** The shadow mode data array. */
     600/**
     601 * The shadow mode data array.
     602 */
    600603PGMMODEDATASHW const g_aPgmShadowModeData[PGM_SHADOW_MODE_DATA_ARRAY_SIZE] =
    601604{
    … …  
    689692    },
    690693#endif /* IN_RC */
     694};
     695
     696
     697/**
     698 * The guest+shadow mode data array.
     699 */
     700PGMMODEDATABTH const g_aPgmBothModeData[PGM_BOTH_MODE_DATA_ARRAY_SIZE] =
     701{
     702#if   !defined(IN_RING3) && !defined(VBOX_STRICT)
     703# define PGMMODEDATABTH_NULL_ENTRY()    { UINT32_MAX, UINT32_MAX, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
     704# define PGMMODEDATABTH_ENTRY(uShwT, uGstT, Nm) \
     705    { uShwT, uGstT, Nm(InvalidatePage), Nm(SyncCR3), Nm(PrefetchPage), Nm(VerifyAccessSyncPage), Nm(MapCR3), Nm(UnmapCR3), /*Nm(Enter)*/ NULL, Nm(Trap0eHandler) }
     706
     707#elif !defined(IN_RING3) && defined(VBOX_STRICT)
     708# define PGMMODEDATABTH_NULL_ENTRY()    { UINT32_MAX, UINT32_MAX, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
     709# define PGMMODEDATABTH_ENTRY(uShwT, uGstT, Nm) \
     710    { uShwT, uGstT, Nm(InvalidatePage), Nm(SyncCR3), Nm(PrefetchPage), Nm(VerifyAccessSyncPage), Nm(MapCR3), Nm(UnmapCR3), /*Nm(Enter)*/ NULL, Nm(Trap0eHandler), Nm(AssertCR3) }
     711
     712#elif defined(IN_RING3) && !defined(VBOX_STRICT)
     713# define PGMMODEDATABTH_NULL_ENTRY()    { UINT32_MAX, UINT32_MAX, NULL, NULL, NULL, NULL, NULL, NULL }
     714# define PGMMODEDATABTH_ENTRY(uShwT, uGstT, Nm) \
     715    { uShwT, uGstT, Nm(InvalidatePage), Nm(SyncCR3), Nm(PrefetchPage), Nm(VerifyAccessSyncPage), Nm(MapCR3), Nm(UnmapCR3), Nm(Enter), Nm(Relocate), }
     716
     717#elif defined(IN_RING3) && defined(VBOX_STRICT)
     718# define PGMMODEDATABTH_NULL_ENTRY()    { UINT32_MAX, UINT32_MAX, NULL, NULL, NULL, NULL, NULL, NULL, NULL }
     719# define PGMMODEDATABTH_ENTRY(uShwT, uGstT, Nm) \
     720    { uShwT, uGstT, Nm(InvalidatePage), Nm(SyncCR3), Nm(PrefetchPage), Nm(VerifyAccessSyncPage), Nm(MapCR3), Nm(UnmapCR3), Nm(Enter), Nm(Relocate), Nm(AssertCR3) }
     721
     722#else
     723# error "Misconfig."
     724#endif
     725
     726    /* 32-bit shadow paging mode: */
     727    PGMMODEDATABTH_NULL_ENTRY(), /* 0 */
     728    PGMMODEDATABTH_ENTRY(PGM_TYPE_32BIT, PGM_TYPE_REAL,  PGM_BTH_NAME_32BIT_REAL),
     729    PGMMODEDATABTH_ENTRY(PGM_TYPE_32BIT, PGM_TYPE_PROT,  PGM_BTH_NAME_32BIT_PROT),
     730    PGMMODEDATABTH_ENTRY(PGM_TYPE_32BIT, PGM_TYPE_32BIT, PGM_BTH_NAME_32BIT_32BIT),
     731    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_32BIT, PGM_TYPE_PAE          - illegal */
     732    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_32BIT, PGM_TYPE_AMD64        - illegal */
     733    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_32BIT, PGM_TYPE_NESTED_32BIT - illegal */
     734    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_32BIT, PGM_TYPE_NESTED_PAE   - illegal */
     735    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_32BIT, PGM_TYPE_NESTED_AMD64 - illegal */
     736    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_32BIT, PGM_TYPE_EPT          - illegal */
     737
     738    /* PAE shadow paging mode: */
     739    PGMMODEDATABTH_NULL_ENTRY(), /* 0 */
     740    PGMMODEDATABTH_ENTRY(PGM_TYPE_PAE, PGM_TYPE_REAL,  PGM_BTH_NAME_PAE_REAL),
     741    PGMMODEDATABTH_ENTRY(PGM_TYPE_PAE, PGM_TYPE_PROT,  PGM_BTH_NAME_PAE_PROT),
     742    PGMMODEDATABTH_ENTRY(PGM_TYPE_PAE, PGM_TYPE_32BIT, PGM_BTH_NAME_PAE_32BIT),
     743    PGMMODEDATABTH_ENTRY(PGM_TYPE_PAE, PGM_TYPE_PAE,   PGM_BTH_NAME_PAE_PAE),
     744    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_PAE, PGM_TYPE_AMD64        - illegal */
     745    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_PAE, PGM_TYPE_NESTED_32BIT - illegal */
     746    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_PAE, PGM_TYPE_NESTED_PAE   - illegal */
     747    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_PAE, PGM_TYPE_NESTED_AMD64 - illegal */
     748    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_PAE, PGM_TYPE_EPT          - illegal */
     749
     750#ifndef IN_RC
     751    /* AMD64 shadow paging mode: */
     752    PGMMODEDATABTH_NULL_ENTRY(), /* 0 */
     753    PGMMODEDATABTH_NULL_ENTRY(), //PGMMODEDATABTH_ENTRY(PGM_TYPE_AMD64, PGM_TYPE_REAL,  PGM_BTH_NAME_AMD64_REAL),
     754    PGMMODEDATABTH_NULL_ENTRY(), //PGMMODEDATABTH_ENTRY(PGM_TYPE_AMD64, PGM_TYPE_PROT,  PGM_BTH_NAME_AMD64_PROT),
     755    PGMMODEDATABTH_NULL_ENTRY(), //PGMMODEDATABTH_ENTRY(PGM_TYPE_AMD64, PGM_TYPE_32BIT, PGM_BTH_NAME_AMD64_32BIT),
     756    PGMMODEDATABTH_NULL_ENTRY(), //PGMMODEDATABTH_ENTRY(PGM_TYPE_AMD64, PGM_TYPE_PAE,   PGM_BTH_NAME_AMD64_PAE),
     757# ifdef VBOX_WITH_64_BITS_GUESTS
     758    PGMMODEDATABTH_ENTRY(PGM_TYPE_AMD64, PGM_TYPE_AMD64, PGM_BTH_NAME_AMD64_AMD64),
     759# else
     760    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_AMD64, PGM_TYPE_AMD64        - illegal */
     761# endif
     762    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_AMD64, PGM_TYPE_NESTED_32BIT - illegal */
     763    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_AMD64, PGM_TYPE_NESTED_PAE   - illegal */
     764    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_AMD64, PGM_TYPE_NESTED_AMD64 - illegal */
     765    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_AMD64, PGM_TYPE_EPT          - illegal */
     766
     767    /* 32-bit nested paging mode: */
     768    PGMMODEDATABTH_NULL_ENTRY(), /* 0 */
     769    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_32BIT, PGM_TYPE_REAL,  PGM_BTH_NAME_NESTED_32BIT_REAL),
     770    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_32BIT, PGM_TYPE_PROT,  PGM_BTH_NAME_NESTED_32BIT_PROT),
     771    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_32BIT, PGM_TYPE_32BIT, PGM_BTH_NAME_NESTED_32BIT_32BIT),
     772    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_32BIT, PGM_TYPE_PAE,   PGM_BTH_NAME_NESTED_32BIT_PAE),
     773# ifdef VBOX_WITH_64_BITS_GUESTS
     774    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_32BIT, PGM_TYPE_AMD64, PGM_BTH_NAME_NESTED_32BIT_AMD64),
     775# else
     776    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_32BIT, PGM_TYPE_AMD64        - illegal */
     777# endif
     778    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_32BIT, PGM_TYPE_NESTED_32BIT - illegal */
     779    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_32BIT, PGM_TYPE_NESTED_PAE   - illegal */
     780    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_32BIT, PGM_TYPE_NESTED_AMD64 - illegal */
     781    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_32BIT, PGM_TYPE_EPT          - illegal */
     782
     783    /* PAE nested paging mode: */
     784    PGMMODEDATABTH_NULL_ENTRY(), /* 0 */
     785    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_PAE, PGM_TYPE_REAL,  PGM_BTH_NAME_NESTED_PAE_REAL),
     786    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_PAE, PGM_TYPE_PROT,  PGM_BTH_NAME_NESTED_PAE_PROT),
     787    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_PAE, PGM_TYPE_32BIT, PGM_BTH_NAME_NESTED_PAE_32BIT),
     788    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_PAE, PGM_TYPE_PAE,   PGM_BTH_NAME_NESTED_PAE_PAE),
     789# ifdef VBOX_WITH_64_BITS_GUESTS
     790    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_PAE, PGM_TYPE_AMD64, PGM_BTH_NAME_NESTED_PAE_AMD64),
     791# else
     792    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_PAE, PGM_TYPE_AMD64        - illegal */
     793# endif
     794    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_PAE, PGM_TYPE_NESTED_32BIT - illegal */
     795    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_PAE, PGM_TYPE_NESTED_PAE   - illegal */
     796    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_PAE, PGM_TYPE_NESTED_AMD64 - illegal */
     797    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_PAE, PGM_TYPE_EPT          - illegal */
     798
     799    /* AMD64 nested paging mode: */
     800    PGMMODEDATABTH_NULL_ENTRY(), /* 0 */
     801    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_AMD64, PGM_TYPE_REAL,  PGM_BTH_NAME_NESTED_AMD64_REAL),
     802    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_AMD64, PGM_TYPE_PROT,  PGM_BTH_NAME_NESTED_AMD64_PROT),
     803    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_AMD64, PGM_TYPE_32BIT, PGM_BTH_NAME_NESTED_AMD64_32BIT),
     804    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_AMD64, PGM_TYPE_PAE,   PGM_BTH_NAME_NESTED_AMD64_PAE),
     805# ifdef VBOX_WITH_64_BITS_GUESTS
     806    PGMMODEDATABTH_ENTRY(PGM_TYPE_NESTED_AMD64, PGM_TYPE_AMD64, PGM_BTH_NAME_NESTED_AMD64_AMD64),
     807# else
     808    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_AMD64, PGM_TYPE_AMD64        - illegal */
     809# endif
     810    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_AMD64, PGM_TYPE_NESTED_32BIT - illegal */
     811    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_AMD64, PGM_TYPE_NESTED_PAE   - illegal */
     812    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_AMD64, PGM_TYPE_NESTED_AMD64 - illegal */
     813    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_NESTED_AMD64, PGM_TYPE_EPT          - illegal */
     814
     815    /* EPT nested paging mode: */
     816    PGMMODEDATABTH_NULL_ENTRY(), /* 0 */
     817    PGMMODEDATABTH_ENTRY(PGM_TYPE_EPT, PGM_TYPE_REAL,  PGM_BTH_NAME_EPT_REAL),
     818    PGMMODEDATABTH_ENTRY(PGM_TYPE_EPT, PGM_TYPE_PROT,  PGM_BTH_NAME_EPT_PROT),
     819    PGMMODEDATABTH_ENTRY(PGM_TYPE_EPT, PGM_TYPE_32BIT, PGM_BTH_NAME_EPT_32BIT),
     820    PGMMODEDATABTH_ENTRY(PGM_TYPE_EPT, PGM_TYPE_PAE,   PGM_BTH_NAME_EPT_PAE),
     821# ifdef VBOX_WITH_64_BITS_GUESTS
     822    PGMMODEDATABTH_ENTRY(PGM_TYPE_EPT, PGM_TYPE_AMD64, PGM_BTH_NAME_EPT_AMD64),
     823# else
     824    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_EPT, PGM_TYPE_AMD64        - illegal */
     825# endif
     826    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_EPT, PGM_TYPE_NESTED_32BIT - illegal */
     827    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_EPT, PGM_TYPE_NESTED_PAE   - illegal */
     828    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_EPT, PGM_TYPE_NESTED_AMD64 - illegal */
     829    PGMMODEDATABTH_NULL_ENTRY(), /* PGM_TYPE_EPT, PGM_TYPE_EPT          - illegal */
     830
     831#endif /* IN_RC */
     832
     833#undef PGMMODEDATABTH_ENTRY
     834#undef PGMMODEDATABTH_NULL_ENTRY
    691835};
    692836

  • trunk/src/VBox/VMM/VMMAll/PGMAllBth.h

    r73246 r73249  
    3333*******************************************************************************/
    3434RT_C_DECLS_BEGIN
     35#ifndef IN_RING3
    3536PGM_BTH_DECL(int, Trap0eHandler)(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken);
     37#endif
    3638PGM_BTH_DECL(int, InvalidatePage)(PVMCPU pVCpu, RTGCPTR GCPtrPage);
    3739static int PGM_BTH_NAME(SyncPage)(PVMCPU pVCpu, GSTPDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uErr);
    … …  
    5153PGM_BTH_DECL(int, MapCR3)(PVMCPU pVCpu, RTGCPHYS GCPhysCR3);
    5254PGM_BTH_DECL(int, UnmapCR3)(PVMCPU pVCpu);
     55
     56/* currently ring-3 */
     57PGM_BTH_DECL(int, Enter)(PVMCPU pVCpu, RTGCPHYS GCPhysCR3);
     58#ifdef IN_RING3
     59PGM_BTH_DECL(int, Relocate)(PVMCPU pVCpu, RTGCPTR offDelta);
     60#endif
    5361RT_C_DECLS_END
     62
     63
    5464
    5565

  • trunk/src/VBox/VMM/VMMR3/PGM.cpp

    r73247 r73249  
    35153515    NOREF(idxShw);
    35163516
    3517     pVCpu->pgm.s.idxBothModeData   = pgmModeDataIndexByMode(enmShw, enmGst);
     3517    uintptr_t idxBth = pVCpu->pgm.s.idxBothModeData = (idxShw - PGM_TYPE_FIRST_SHADOW) * PGM_TYPE_END + idxGst;
     3518    Assert(g_aPgmBothModeData[idxBth].uShwType == idxShw);
     3519    Assert(g_aPgmBothModeData[idxBth].uGstType == idxGst);
     3520    AssertPtr(g_aPgmBothModeData[idxBth].pfnInvalidatePage);
     3521    AssertPtr(g_aPgmBothModeData[idxBth].pfnSyncCR3);
     3522    AssertPtr(g_aPgmBothModeData[idxBth].pfnPrefetchPage);
     3523    AssertPtr(g_aPgmBothModeData[idxBth].pfnVerifyAccessSyncPage);
     3524    AssertPtr(g_aPgmBothModeData[idxBth].pfnMapCR3);
     3525    AssertPtr(g_aPgmBothModeData[idxBth].pfnUnmapCR3);
     3526    AssertPtr(g_aPgmBothModeData[idxBth].pfnEnter);
     3527    AssertPtr(g_aPgmBothModeData[idxBth].pfnRelocate);
     3528#ifdef VBOX_STRICT
     3529    AssertPtr(g_aPgmBothModeData[idxBth].pfnAssertCR3);
     3530#endif
     3531    NOREF(idxBth);
    35183532
    35193533    /*

  • trunk/src/VBox/VMM/include/PGMInternal.h

    r73246 r73249  
    215215#define PGM_TYPE_EPT                    9
    216216#define PGM_TYPE_MAX                    PGM_TYPE_EPT
     217#define PGM_TYPE_END                    (PGM_TYPE_EPT + 1)
     218#define PGM_TYPE_FIRST_SHADOW           PGM_TYPE_32BIT /**< The first type used by shadow paging. */
    217219/** @} */
    218220
    … …  
    31583160} PGMMODEDATASHW;
    31593161
    3160 /** The length of g_aPgmGuestModeData. */
     3162/** The length of g_aPgmShadowModeData. */
    31613163#ifndef IN_RC
    3162 # define PGM_SHADOW_MODE_DATA_ARRAY_SIZE    (PGM_TYPE_MAX + 1)
     3164# define PGM_SHADOW_MODE_DATA_ARRAY_SIZE    PGM_TYPE_END
    31633165#else
    31643166# define PGM_SHADOW_MODE_DATA_ARRAY_SIZE    (PGM_TYPE_PAE + 1)
    … …  
    31663168/** The shadow mode data array. */
    31673169extern PGMMODEDATASHW const g_aPgmShadowModeData[PGM_SHADOW_MODE_DATA_ARRAY_SIZE];
     3170
     3171
     3172/**
     3173 * Function pointers for guest+shadow paging.
     3174 */
     3175typedef struct PGMMODEDATABTH
     3176{
     3177    /** The shadow mode type. */
     3178    uint32_t                        uShwType;
     3179    /** The guest mode type. */
     3180    uint32_t                        uGstType;
     3181
     3182    DECLCALLBACKMEMBER(int,         pfnInvalidatePage)(PVMCPU pVCpu, RTGCPTR GCPtrPage);
     3183    DECLCALLBACKMEMBER(int,         pfnSyncCR3)(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal);
     3184    DECLCALLBACKMEMBER(int,         pfnPrefetchPage)(PVMCPU pVCpu, RTGCPTR GCPtrPage);
     3185    DECLCALLBACKMEMBER(int,         pfnVerifyAccessSyncPage)(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError);
     3186    DECLCALLBACKMEMBER(int,         pfnMapCR3)(PVMCPU pVCpu, RTGCPHYS GCPhysCR3);
     3187    DECLCALLBACKMEMBER(int,         pfnUnmapCR3)(PVMCPU pVCpu);
     3188    DECLCALLBACKMEMBER(int,         pfnEnter)(PVMCPU pVCpu, RTGCPHYS GCPhysCR3);
     3189#ifdef IN_RING3
     3190    DECLCALLBACKMEMBER(int,         pfnRelocate)(PVMCPU pVCpu, RTGCPTR offDelta);
     3191#else
     3192    DECLCALLBACKMEMBER(int,         pfnTrap0eHandler)(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken);
     3193#endif
     3194#ifdef VBOX_STRICT
     3195    DECLCALLBACKMEMBER(unsigned,    pfnAssertCR3)(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb);
     3196#endif
     3197} PGMMODEDATABTH;
     3198
     3199/** The length of g_aPgmBothModeData. */
     3200#ifndef IN_RC
     3201# define PGM_BOTH_MODE_DATA_ARRAY_SIZE      ((PGM_TYPE_END     - PGM_TYPE_FIRST_SHADOW) * PGM_TYPE_END)
     3202#else
     3203# define PGM_BOTH_MODE_DATA_ARRAY_SIZE      ((PGM_TYPE_PAE + 1 - PGM_TYPE_FIRST_SHADOW) * PGM_TYPE_END)
     3204#endif
     3205/** The guest+shadow mode data array. */
     3206extern PGMMODEDATABTH const g_aPgmBothModeData[PGM_BOTH_MODE_DATA_ARRAY_SIZE];
    31683207
    31693208
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