2 * PROJECT: ReactOS Kernel
3 * LICENSE: BSD - See COPYING.ARM in the top level directory
4 * FILE: ntoskrnl/mm/ARM3/miarm.h
5 * PURPOSE: ARM Memory Manager Header
6 * PROGRAMMERS: ReactOS Portable Systems Group
9 #define MI_LOWEST_VAD_ADDRESS (PVOID)MM_LOWEST_USER_ADDRESS
11 /* Make the code cleaner with some definitions for size multiples */
13 #define _1MB (1024 * _1KB)
14 #define _1GB (1024 * _1MB)
16 /* Everyone loves 64K */
17 #define _64K (64 * _1KB)
19 /* Area mapped by a PDE */
20 #define PDE_MAPPED_VA (PTE_COUNT * PAGE_SIZE)
22 /* Size of a page table */
23 #define PT_SIZE (PTE_COUNT * sizeof(MMPTE))
25 /* Size of a page directory */
26 #define PD_SIZE (PDE_COUNT * sizeof(MMPDE))
28 /* Stop using these! */
29 #define PD_COUNT PPE_PER_PAGE
30 #define PDE_COUNT PDE_PER_PAGE
31 #define PTE_COUNT PTE_PER_PAGE
33 /* Size of all page directories for a process */
34 #define SYSTEM_PD_SIZE (PD_COUNT * PD_SIZE)
36 C_ASSERT(SYSTEM_PD_SIZE
== PAGE_SIZE
);
40 // Protection Bits part of the internal memory manager Protection Mask, from:
41 // http://reactos.org/wiki/Techwiki:Memory_management_in_the_Windows_XP_kernel
42 // https://www.reactos.org/wiki/Techwiki:Memory_Protection_constants
43 // and public assertions.
45 #define MM_ZERO_ACCESS 0
48 #define MM_EXECUTE_READ 3
49 #define MM_READWRITE 4
50 #define MM_WRITECOPY 5
51 #define MM_EXECUTE_READWRITE 6
52 #define MM_EXECUTE_WRITECOPY 7
53 #define MM_PROTECT_ACCESS 7
56 // These are flags on top of the actual protection mask
58 #define MM_NOCACHE 0x08
59 #define MM_GUARDPAGE 0x10
60 #define MM_WRITECOMBINE 0x18
61 #define MM_PROTECT_SPECIAL 0x18
64 // These are special cases
66 #define MM_DECOMMIT (MM_ZERO_ACCESS | MM_GUARDPAGE)
67 #define MM_NOACCESS (MM_ZERO_ACCESS | MM_WRITECOMBINE)
68 #define MM_OUTSWAPPED_KSTACK (MM_EXECUTE_WRITECOPY | MM_WRITECOMBINE)
69 #define MM_INVALID_PROTECTION 0xFFFFFFFF
72 // Specific PTE Definitions that map to the Memory Manager's Protection Mask Bits
73 // The Memory Manager's definition define the attributes that must be preserved
74 // and these PTE definitions describe the attributes in the hardware sense. This
75 // helps deal with hardware differences between the actual boolean expression of
78 // For example, in the logical attributes, we want to express read-only as a flag
79 // but on x86, it is writability that must be set. On the other hand, on x86, just
80 // like in the kernel, it is disabling the caches that requires a special flag,
81 // while on certain architectures such as ARM, it is enabling the cache which
84 #if defined(_M_IX86) || defined(_M_AMD64)
88 #define PTE_READONLY 0 // Doesn't exist on x86
89 #define PTE_EXECUTE 0 // Not worrying about NX yet
90 #define PTE_EXECUTE_READ 0 // Not worrying about NX yet
91 #define PTE_READWRITE 0x2
92 #define PTE_WRITECOPY 0x200
93 #define PTE_EXECUTE_READWRITE 0x2 // Not worrying about NX yet
94 #define PTE_EXECUTE_WRITECOPY 0x200
95 #define PTE_PROTOTYPE 0x400
100 #define PTE_VALID 0x1
101 #define PTE_ACCESSED 0x20
102 #define PTE_DIRTY 0x40
107 #define PTE_ENABLE_CACHE 0
108 #define PTE_DISABLE_CACHE 0x10
109 #define PTE_WRITECOMBINED_CACHE 0x10
110 #elif defined(_M_ARM)
111 #define PTE_READONLY 0x200
112 #define PTE_EXECUTE 0 // Not worrying about NX yet
113 #define PTE_EXECUTE_READ 0 // Not worrying about NX yet
114 #define PTE_READWRITE 0 // Doesn't exist on ARM
115 #define PTE_WRITECOPY 0 // Doesn't exist on ARM
116 #define PTE_EXECUTE_READWRITE 0 // Not worrying about NX yet
117 #define PTE_EXECUTE_WRITECOPY 0 // Not worrying about NX yet
118 #define PTE_PROTOTYPE 0x400 // Using the Shared bit
122 #define PTE_ENABLE_CACHE 0
123 #define PTE_DISABLE_CACHE 0x10
124 #define PTE_WRITECOMBINED_CACHE 0x10
126 #error Define these please!
129 extern const ULONG_PTR MmProtectToPteMask
[32];
130 extern const ULONG MmProtectToValue
[32];
133 // Assertions for session images, addresses, and PTEs
135 #define MI_IS_SESSION_IMAGE_ADDRESS(Address) \
136 (((Address) >= MiSessionImageStart) && ((Address) < MiSessionImageEnd))
138 #define MI_IS_SESSION_ADDRESS(Address) \
139 (((Address) >= MmSessionBase) && ((Address) < MiSessionSpaceEnd))
141 #define MI_IS_SESSION_PTE(Pte) \
142 ((((PMMPTE)Pte) >= MiSessionBasePte) && (((PMMPTE)Pte) < MiSessionLastPte))
144 #define MI_IS_PAGE_TABLE_ADDRESS(Address) \
145 (((PVOID)(Address) >= (PVOID)PTE_BASE) && ((PVOID)(Address) <= (PVOID)PTE_TOP))
147 #define MI_IS_SYSTEM_PAGE_TABLE_ADDRESS(Address) \
148 (((Address) >= (PVOID)MiAddressToPte(MmSystemRangeStart)) && ((Address) <= (PVOID)PTE_TOP))
150 #define MI_IS_PAGE_TABLE_OR_HYPER_ADDRESS(Address) \
151 (((PVOID)(Address) >= (PVOID)PTE_BASE) && ((PVOID)(Address) <= (PVOID)MmHyperSpaceEnd))
154 // Creates a software PTE with the given protection
156 #define MI_MAKE_SOFTWARE_PTE(p, x) ((p)->u.Long = (x << MM_PTE_SOFTWARE_PROTECTION_BITS))
159 // Marks a PTE as deleted
161 #define MI_SET_PFN_DELETED(x) ((x)->PteAddress = (PMMPTE)((ULONG_PTR)(x)->PteAddress | 1))
162 #define MI_IS_PFN_DELETED(x) ((ULONG_PTR)((x)->PteAddress) & 1)
165 // Special values for LoadedImports
168 #define MM_SYSLDR_NO_IMPORTS (PVOID)0xFFFFFFFFFFFFFFFEULL
169 #define MM_SYSLDR_BOOT_LOADED (PVOID)0xFFFFFFFFFFFFFFFFULL
171 #define MM_SYSLDR_NO_IMPORTS (PVOID)0xFFFFFFFE
172 #define MM_SYSLDR_BOOT_LOADED (PVOID)0xFFFFFFFF
174 #define MM_SYSLDR_SINGLE_ENTRY 0x1
177 // Number of initial session IDs
179 #define MI_INITIAL_SESSION_IDS 64
181 #if defined(_M_IX86) || defined(_M_ARM)
185 #define LIST_HEAD 0xFFFFFFFF
188 // Because GCC cannot automatically downcast 0xFFFFFFFF to lesser-width bits,
189 // we need a manual definition suited to the number of bits in the PteFrame.
190 // This is used as a LIST_HEAD for the colored list
192 #define COLORED_LIST_HEAD ((1 << 25) - 1) // 0x1FFFFFF
193 #elif defined(_M_AMD64)
194 #define LIST_HEAD 0xFFFFFFFFFFFFFFFFLL
195 #define COLORED_LIST_HEAD ((1ULL << 57) - 1) // 0x1FFFFFFFFFFFFFFLL
197 #error Define these please!
201 // Special IRQL value (found in assertions)
203 #define MM_NOIRQL (KIRQL)0xFFFFFFFF
206 // Returns the color of a page
208 #define MI_GET_PAGE_COLOR(x) ((x) & MmSecondaryColorMask)
209 #define MI_GET_NEXT_COLOR() (MI_GET_PAGE_COLOR(++MmSystemPageColor))
210 #define MI_GET_NEXT_PROCESS_COLOR(x) (MI_GET_PAGE_COLOR(++(x)->NextPageColor))
213 // Prototype PTEs that don't yet have a pagefile association
216 #define MI_PTE_LOOKUP_NEEDED 0xffffffffULL
218 #define MI_PTE_LOOKUP_NEEDED 0xFFFFF
222 // Number of session data and tag pages
224 #define MI_SESSION_DATA_PAGES_MAXIMUM (MM_ALLOCATION_GRANULARITY / PAGE_SIZE)
225 #define MI_SESSION_TAG_PAGES_MAXIMUM (MM_ALLOCATION_GRANULARITY / PAGE_SIZE)
228 // Used by MiCheckSecuredVad
230 #define MM_READ_WRITE_ALLOWED 11
231 #define MM_READ_ONLY_ALLOWED 10
232 #define MM_NO_ACCESS_ALLOWED 01
233 #define MM_DELETE_CHECK 85
236 // System views are binned into 64K chunks
238 #define MI_SYSTEM_VIEW_BUCKET_SIZE _64K
241 // FIXFIX: These should go in ex.h after the pool merge
244 #define POOL_BLOCK_SIZE 16
246 #define POOL_BLOCK_SIZE 8
248 #define POOL_LISTS_PER_PAGE (PAGE_SIZE / POOL_BLOCK_SIZE)
249 #define BASE_POOL_TYPE_MASK 1
250 #define POOL_MAX_ALLOC (PAGE_SIZE - (sizeof(POOL_HEADER) + POOL_BLOCK_SIZE))
253 // Pool debugging/analysis/tracing flags
255 #define POOL_FLAG_CHECK_TIMERS 0x1
256 #define POOL_FLAG_CHECK_WORKERS 0x2
257 #define POOL_FLAG_CHECK_RESOURCES 0x4
258 #define POOL_FLAG_VERIFIER 0x8
259 #define POOL_FLAG_CHECK_DEADLOCK 0x10
260 #define POOL_FLAG_SPECIAL_POOL 0x20
261 #define POOL_FLAG_DBGPRINT_ON_FAILURE 0x40
262 #define POOL_FLAG_CRASH_ON_FAILURE 0x80
265 // BAD_POOL_HEADER codes during pool bugcheck
267 #define POOL_CORRUPTED_LIST 3
268 #define POOL_SIZE_OR_INDEX_MISMATCH 5
269 #define POOL_ENTRIES_NOT_ALIGNED_PREVIOUS 6
270 #define POOL_HEADER_NOT_ALIGNED 7
271 #define POOL_HEADER_IS_ZERO 8
272 #define POOL_ENTRIES_NOT_ALIGNED_NEXT 9
273 #define POOL_ENTRY_NOT_FOUND 10
276 // BAD_POOL_CALLER codes during pool bugcheck
278 #define POOL_ENTRY_CORRUPTED 1
279 #define POOL_ENTRY_ALREADY_FREE 6
280 #define POOL_ENTRY_NOT_ALLOCATED 7
281 #define POOL_ALLOC_IRQL_INVALID 8
282 #define POOL_FREE_IRQL_INVALID 9
283 #define POOL_BILLED_PROCESS_INVALID 13
284 #define POOL_HEADER_SIZE_INVALID 32
286 typedef struct _POOL_DESCRIPTOR
291 ULONG RunningDeAllocs
;
297 LONG PendingFreeDepth
;
300 LIST_ENTRY ListHeads
[POOL_LISTS_PER_PAGE
];
301 } POOL_DESCRIPTOR
, *PPOOL_DESCRIPTOR
;
303 typedef struct _POOL_HEADER
310 USHORT PreviousSize
:8;
315 USHORT PreviousSize
:9;
329 PEPROCESS ProcessBilled
;
335 USHORT AllocatorBackTraceIndex
;
339 } POOL_HEADER
, *PPOOL_HEADER
;
341 C_ASSERT(sizeof(POOL_HEADER
) == POOL_BLOCK_SIZE
);
342 C_ASSERT(POOL_BLOCK_SIZE
== sizeof(LIST_ENTRY
));
344 typedef struct _POOL_TRACKER_TABLE
349 SIZE_T NonPagedBytes
;
353 } POOL_TRACKER_TABLE
, *PPOOL_TRACKER_TABLE
;
355 typedef struct _POOL_TRACKER_BIG_PAGES
361 } POOL_TRACKER_BIG_PAGES
, *PPOOL_TRACKER_BIG_PAGES
;
363 extern ULONG ExpNumberOfPagedPools
;
364 extern POOL_DESCRIPTOR NonPagedPoolDescriptor
;
365 extern PPOOL_DESCRIPTOR ExpPagedPoolDescriptor
[16 + 1];
366 extern PPOOL_TRACKER_TABLE PoolTrackTable
;
372 typedef struct _MI_LARGE_PAGE_DRIVER_ENTRY
375 UNICODE_STRING BaseName
;
376 } MI_LARGE_PAGE_DRIVER_ENTRY
, *PMI_LARGE_PAGE_DRIVER_ENTRY
;
378 typedef enum _MMSYSTEM_PTE_POOL_TYPE
381 NonPagedPoolExpansion
,
383 } MMSYSTEM_PTE_POOL_TYPE
;
385 typedef enum _MI_PFN_CACHE_ATTRIBUTE
391 } MI_PFN_CACHE_ATTRIBUTE
, *PMI_PFN_CACHE_ATTRIBUTE
;
393 typedef struct _PHYSICAL_MEMORY_RUN
396 PFN_NUMBER PageCount
;
397 } PHYSICAL_MEMORY_RUN
, *PPHYSICAL_MEMORY_RUN
;
399 typedef struct _PHYSICAL_MEMORY_DESCRIPTOR
402 PFN_NUMBER NumberOfPages
;
403 PHYSICAL_MEMORY_RUN Run
[1];
404 } PHYSICAL_MEMORY_DESCRIPTOR
, *PPHYSICAL_MEMORY_DESCRIPTOR
;
406 typedef struct _MMCOLOR_TABLES
411 } MMCOLOR_TABLES
, *PMMCOLOR_TABLES
;
413 typedef struct _MI_LARGE_PAGE_RANGES
415 PFN_NUMBER StartFrame
;
416 PFN_NUMBER LastFrame
;
417 } MI_LARGE_PAGE_RANGES
, *PMI_LARGE_PAGE_RANGES
;
419 typedef struct _MMVIEW
422 PCONTROL_AREA ControlArea
;
425 typedef struct _MMSESSION
427 KGUARDED_MUTEX SystemSpaceViewLock
;
428 PKGUARDED_MUTEX SystemSpaceViewLockPointer
;
429 PCHAR SystemSpaceViewStart
;
430 PMMVIEW SystemSpaceViewTable
;
431 ULONG SystemSpaceHashSize
;
432 ULONG SystemSpaceHashEntries
;
433 ULONG SystemSpaceHashKey
;
434 ULONG BitmapFailures
;
435 PRTL_BITMAP SystemSpaceBitMap
;
436 } MMSESSION
, *PMMSESSION
;
438 typedef struct _MM_SESSION_SPACE_FLAGS
441 ULONG DeletePending
:1;
443 } MM_SESSION_SPACE_FLAGS
;
445 typedef struct _MM_SESSION_SPACE
447 struct _MM_SESSION_SPACE
*GlobalVirtualAddress
;
452 MM_SESSION_SPACE_FLAGS Flags
;
455 LIST_ENTRY ProcessList
;
456 LARGE_INTEGER LastProcessSwappedOutTime
;
457 PFN_NUMBER SessionPageDirectoryIndex
;
458 SIZE_T NonPageablePages
;
459 SIZE_T CommittedPages
;
460 PVOID PagedPoolStart
;
462 PMMPDE PagedPoolBasePde
;
464 LONG ResidentProcessCount
;
465 ULONG SessionPoolAllocationFailures
[4];
466 LIST_ENTRY ImageList
;
470 PEPROCESS LastProcess
;
471 LONG ProcessReferenceToSession
;
472 LIST_ENTRY WsListEntry
;
473 GENERAL_LOOKASIDE Lookaside
[SESSION_POOL_LOOKASIDES
];
475 KGUARDED_MUTEX PagedPoolMutex
;
476 MM_PAGED_POOL_INFO PagedPoolInfo
;
479 PDRIVER_UNLOAD Win32KDriverUnload
;
480 POOL_DESCRIPTOR PagedPool
;
481 #if defined (_M_AMD64)
486 #if defined (_M_AMD64)
487 PMMPTE SpecialPoolFirstPte
;
488 PMMPTE SpecialPoolLastPte
;
489 PMMPTE NextPdeForSpecialPoolExpansion
;
490 PMMPTE LastPdeForSpecialPoolExpansion
;
491 PFN_NUMBER SpecialPagesInUse
;
493 LONG ImageLoadingCount
;
494 } MM_SESSION_SPACE
, *PMM_SESSION_SPACE
;
496 extern PMM_SESSION_SPACE MmSessionSpace
;
497 extern MMPTE HyperTemplatePte
;
498 extern MMPDE ValidKernelPde
;
499 extern MMPTE ValidKernelPte
;
500 extern MMPDE ValidKernelPdeLocal
;
501 extern MMPTE ValidKernelPteLocal
;
502 extern MMPDE DemandZeroPde
;
503 extern MMPTE DemandZeroPte
;
504 extern MMPTE PrototypePte
;
505 extern MMPTE MmDecommittedPte
;
506 extern BOOLEAN MmLargeSystemCache
;
507 extern BOOLEAN MmZeroPageFile
;
508 extern BOOLEAN MmProtectFreedNonPagedPool
;
509 extern BOOLEAN MmTrackLockedPages
;
510 extern BOOLEAN MmTrackPtes
;
511 extern BOOLEAN MmDynamicPfn
;
512 extern BOOLEAN MmMirroring
;
513 extern BOOLEAN MmMakeLowMemory
;
514 extern BOOLEAN MmEnforceWriteProtection
;
515 extern SIZE_T MmAllocationFragment
;
516 extern ULONG MmConsumedPoolPercentage
;
517 extern ULONG MmVerifyDriverBufferType
;
518 extern ULONG MmVerifyDriverLevel
;
519 extern WCHAR MmVerifyDriverBuffer
[512];
520 extern WCHAR MmLargePageDriverBuffer
[512];
521 extern LIST_ENTRY MiLargePageDriverList
;
522 extern BOOLEAN MiLargePageAllDrivers
;
523 extern ULONG MmVerifyDriverBufferLength
;
524 extern ULONG MmLargePageDriverBufferLength
;
525 extern SIZE_T MmSizeOfNonPagedPoolInBytes
;
526 extern SIZE_T MmMaximumNonPagedPoolInBytes
;
527 extern PFN_NUMBER MmMaximumNonPagedPoolInPages
;
528 extern PFN_NUMBER MmSizeOfPagedPoolInPages
;
529 extern PVOID MmNonPagedSystemStart
;
530 extern SIZE_T MiNonPagedSystemSize
;
531 extern PVOID MmNonPagedPoolStart
;
532 extern PVOID MmNonPagedPoolExpansionStart
;
533 extern PVOID MmNonPagedPoolEnd
;
534 extern SIZE_T MmSizeOfPagedPoolInBytes
;
535 extern PVOID MmPagedPoolStart
;
536 extern PVOID MmPagedPoolEnd
;
537 extern PVOID MmSessionBase
;
538 extern SIZE_T MmSessionSize
;
539 extern PMMPTE MmFirstReservedMappingPte
, MmLastReservedMappingPte
;
540 extern PMMPTE MiFirstReservedZeroingPte
;
541 extern MI_PFN_CACHE_ATTRIBUTE MiPlatformCacheAttributes
[2][MmMaximumCacheType
];
542 extern PPHYSICAL_MEMORY_DESCRIPTOR MmPhysicalMemoryBlock
;
543 extern SIZE_T MmBootImageSize
;
544 extern PMMPTE MmSystemPtesStart
[MaximumPtePoolTypes
];
545 extern PMMPTE MmSystemPtesEnd
[MaximumPtePoolTypes
];
546 extern PMEMORY_ALLOCATION_DESCRIPTOR MxFreeDescriptor
;
547 extern MEMORY_ALLOCATION_DESCRIPTOR MxOldFreeDescriptor
;
548 extern ULONG_PTR MxPfnAllocation
;
549 extern MM_PAGED_POOL_INFO MmPagedPoolInfo
;
550 extern RTL_BITMAP MiPfnBitMap
;
551 extern KGUARDED_MUTEX MmPagedPoolMutex
;
552 extern KGUARDED_MUTEX MmSectionCommitMutex
;
553 extern PVOID MmPagedPoolStart
;
554 extern PVOID MmPagedPoolEnd
;
555 extern PVOID MmNonPagedSystemStart
;
556 extern PVOID MiSystemViewStart
;
557 extern SIZE_T MmSystemViewSize
;
558 extern PVOID MmSessionBase
;
559 extern PVOID MiSessionSpaceEnd
;
560 extern PMMPTE MiSessionImagePteStart
;
561 extern PMMPTE MiSessionImagePteEnd
;
562 extern PMMPTE MiSessionBasePte
;
563 extern PMMPTE MiSessionLastPte
;
564 extern SIZE_T MmSizeOfPagedPoolInBytes
;
565 extern PMMPDE MmSystemPagePtes
;
566 extern PVOID MmSystemCacheStart
;
567 extern PVOID MmSystemCacheEnd
;
568 extern MMSUPPORT MmSystemCacheWs
;
569 extern SIZE_T MmAllocatedNonPagedPool
;
570 extern ULONG MmSpecialPoolTag
;
571 extern PVOID MmHyperSpaceEnd
;
572 extern PMMWSL MmSystemCacheWorkingSetList
;
573 extern SIZE_T MmMinimumNonPagedPoolSize
;
574 extern ULONG MmMinAdditionNonPagedPoolPerMb
;
575 extern SIZE_T MmDefaultMaximumNonPagedPool
;
576 extern ULONG MmMaxAdditionNonPagedPoolPerMb
;
577 extern ULONG MmSecondaryColors
;
578 extern ULONG MmSecondaryColorMask
;
579 extern ULONG MmNumberOfSystemPtes
;
580 extern ULONG MmMaximumNonPagedPoolPercent
;
581 extern ULONG MmLargeStackSize
;
582 extern PMMCOLOR_TABLES MmFreePagesByColor
[FreePageList
+ 1];
583 extern MMPFNLIST MmStandbyPageListByPriority
[8];
584 extern ULONG MmProductType
;
585 extern MM_SYSTEMSIZE MmSystemSize
;
586 extern PKEVENT MiLowMemoryEvent
;
587 extern PKEVENT MiHighMemoryEvent
;
588 extern PKEVENT MiLowPagedPoolEvent
;
589 extern PKEVENT MiHighPagedPoolEvent
;
590 extern PKEVENT MiLowNonPagedPoolEvent
;
591 extern PKEVENT MiHighNonPagedPoolEvent
;
592 extern PFN_NUMBER MmLowMemoryThreshold
;
593 extern PFN_NUMBER MmHighMemoryThreshold
;
594 extern PFN_NUMBER MiLowPagedPoolThreshold
;
595 extern PFN_NUMBER MiHighPagedPoolThreshold
;
596 extern PFN_NUMBER MiLowNonPagedPoolThreshold
;
597 extern PFN_NUMBER MiHighNonPagedPoolThreshold
;
598 extern PFN_NUMBER MmMinimumFreePages
;
599 extern PFN_NUMBER MmPlentyFreePages
;
600 extern SIZE_T MmMinimumStackCommitInBytes
;
601 extern PFN_COUNT MiExpansionPoolPagesInitialCharge
;
602 extern PFN_NUMBER MmResidentAvailablePages
;
603 extern PFN_NUMBER MmResidentAvailableAtInit
;
604 extern ULONG MmTotalFreeSystemPtes
[MaximumPtePoolTypes
];
605 extern PFN_NUMBER MmTotalSystemDriverPages
;
606 extern ULONG MmCritsectTimeoutSeconds
;
607 extern PVOID MiSessionImageStart
;
608 extern PVOID MiSessionImageEnd
;
609 extern PMMPTE MiHighestUserPte
;
610 extern PMMPDE MiHighestUserPde
;
611 extern PFN_NUMBER MmSystemPageDirectory
[PD_COUNT
];
612 extern PMMPTE MmSharedUserDataPte
;
613 extern LIST_ENTRY MmProcessList
;
614 extern BOOLEAN MmZeroingPageThreadActive
;
615 extern KEVENT MmZeroingPageEvent
;
616 extern ULONG MmSystemPageColor
;
617 extern ULONG MmProcessColorSeed
;
618 extern PMMWSL MmWorkingSetList
;
619 extern PFN_NUMBER MiNumberOfFreePages
;
620 extern SIZE_T MmSessionViewSize
;
621 extern SIZE_T MmSessionPoolSize
;
622 extern SIZE_T MmSessionImageSize
;
623 extern PVOID MiSystemViewStart
;
624 extern PVOID MiSessionPoolEnd
; // 0xBE000000
625 extern PVOID MiSessionPoolStart
; // 0xBD000000
626 extern PVOID MiSessionViewStart
; // 0xBE000000
627 extern PVOID MiSessionSpaceWs
;
628 extern ULONG MmMaximumDeadKernelStacks
;
629 extern SLIST_HEADER MmDeadStackSListHead
;
630 extern MM_AVL_TABLE MmSectionBasedRoot
;
631 extern KGUARDED_MUTEX MmSectionBasedMutex
;
632 extern PVOID MmHighSectionBase
;
633 extern SIZE_T MmSystemLockPagesCount
;
634 extern ULONG_PTR MmSubsectionBase
;
635 extern LARGE_INTEGER MmCriticalSectionTimeout
;
636 extern LIST_ENTRY MmWorkingSetExpansionHead
;
637 extern KSPIN_LOCK MmExpansionLock
;
638 extern PETHREAD MiExpansionLockOwner
;
642 MiIsMemoryTypeFree(TYPE_OF_MEMORY MemoryType
)
644 return ((MemoryType
== LoaderFree
) ||
645 (MemoryType
== LoaderLoadedProgram
) ||
646 (MemoryType
== LoaderFirmwareTemporary
) ||
647 (MemoryType
== LoaderOsloaderStack
));
652 MiIsMemoryTypeInvisible(TYPE_OF_MEMORY MemoryType
)
654 return ((MemoryType
== LoaderFirmwarePermanent
) ||
655 (MemoryType
== LoaderSpecialMemory
) ||
656 (MemoryType
== LoaderHALCachedMemory
) ||
657 (MemoryType
== LoaderBBTMemory
));
663 MiIsUserPxe(PVOID Address
)
665 return ((ULONG_PTR
)Address
>> 7) == 0x1FFFFEDF6FB7DA0ULL
;
670 MiIsUserPpe(PVOID Address
)
672 return ((ULONG_PTR
)Address
>> 16) == 0xFFFFF6FB7DA0ULL
;
677 MiIsUserPde(PVOID Address
)
679 return ((ULONG_PTR
)Address
>> 25) == 0x7FFFFB7DA0ULL
;
684 MiIsUserPte(PVOID Address
)
686 return ((ULONG_PTR
)Address
>> 34) == 0x3FFFFDA0ULL
;
691 MiIsUserPde(PVOID Address
)
693 return ((Address
>= (PVOID
)MiAddressToPde(NULL
)) &&
694 (Address
<= (PVOID
)MiHighestUserPde
));
699 MiIsUserPte(PVOID Address
)
701 return (Address
<= (PVOID
)MiHighestUserPte
);
706 // Figures out the hardware bits for a PTE
710 MiDetermineUserGlobalPteMask(IN PVOID PointerPte
)
717 /* Make it valid and accessed */
718 TempPte
.u
.Hard
.Valid
= TRUE
;
719 MI_MAKE_ACCESSED_PAGE(&TempPte
);
721 /* Is this for user-mode? */
723 #if (_MI_PAGING_LEVELS == 4)
724 MiIsUserPxe(PointerPte
) ||
726 #if (_MI_PAGING_LEVELS >= 3)
727 MiIsUserPpe(PointerPte
) ||
729 MiIsUserPde(PointerPte
) ||
730 MiIsUserPte(PointerPte
))
732 /* Set the owner bit */
733 MI_MAKE_OWNER_PAGE(&TempPte
);
736 /* FIXME: We should also set the global bit */
738 /* Return the protection */
739 return TempPte
.u
.Long
;
743 // Creates a valid kernel PTE with the given protection
747 MI_MAKE_HARDWARE_PTE_KERNEL(IN PMMPTE NewPte
,
748 IN PMMPTE MappingPte
,
749 IN ULONG_PTR ProtectionMask
,
750 IN PFN_NUMBER PageFrameNumber
)
752 /* Only valid for kernel, non-session PTEs */
753 ASSERT(MappingPte
> MiHighestUserPte
);
754 ASSERT(!MI_IS_SESSION_PTE(MappingPte
));
755 ASSERT((MappingPte
< (PMMPTE
)PDE_BASE
) || (MappingPte
> (PMMPTE
)PDE_TOP
));
758 *NewPte
= ValidKernelPte
;
760 /* Set the protection and page */
761 NewPte
->u
.Hard
.PageFrameNumber
= PageFrameNumber
;
762 NewPte
->u
.Long
|= MmProtectToPteMask
[ProtectionMask
];
766 // Creates a valid PTE with the given protection
770 MI_MAKE_HARDWARE_PTE(IN PMMPTE NewPte
,
771 IN PMMPTE MappingPte
,
772 IN ULONG_PTR ProtectionMask
,
773 IN PFN_NUMBER PageFrameNumber
)
775 /* Set the protection and page */
776 NewPte
->u
.Long
= MiDetermineUserGlobalPteMask(MappingPte
);
777 NewPte
->u
.Long
|= MmProtectToPteMask
[ProtectionMask
];
778 NewPte
->u
.Hard
.PageFrameNumber
= PageFrameNumber
;
782 // Creates a valid user PTE with the given protection
786 MI_MAKE_HARDWARE_PTE_USER(IN PMMPTE NewPte
,
787 IN PMMPTE MappingPte
,
788 IN ULONG_PTR ProtectionMask
,
789 IN PFN_NUMBER PageFrameNumber
)
791 /* Only valid for kernel, non-session PTEs */
792 ASSERT(MappingPte
<= MiHighestUserPte
);
797 /* Set the protection and page */
798 NewPte
->u
.Hard
.Valid
= TRUE
;
799 NewPte
->u
.Hard
.Owner
= TRUE
;
800 NewPte
->u
.Hard
.PageFrameNumber
= PageFrameNumber
;
801 NewPte
->u
.Long
|= MmProtectToPteMask
[ProtectionMask
];
806 // Builds a Prototype PTE for the address of the PTE
810 MI_MAKE_PROTOTYPE_PTE(IN PMMPTE NewPte
,
811 IN PMMPTE PointerPte
)
815 /* Mark this as a prototype */
817 NewPte
->u
.Proto
.Prototype
= 1;
820 * Prototype PTEs are only valid in paged pool by design, this little trick
821 * lets us only use 30 bits for the adress of the PTE, as long as the area
822 * stays 1024MB At most.
824 Offset
= (ULONG_PTR
)PointerPte
- (ULONG_PTR
)MmPagedPoolStart
;
827 * 7 bits go in the "low" (but we assume the bottom 2 are zero)
828 * and the other 21 bits go in the "high"
830 NewPte
->u
.Proto
.ProtoAddressLow
= (Offset
& 0x1FC) >> 2;
831 NewPte
->u
.Proto
.ProtoAddressHigh
= (Offset
& 0x3FFFFE00) >> 9;
835 // Builds a Subsection PTE for the address of the Segment
839 MI_MAKE_SUBSECTION_PTE(IN PMMPTE NewPte
,
844 /* Mark this as a prototype */
846 NewPte
->u
.Subsect
.Prototype
= 1;
849 * Segments are only valid either in nonpaged pool. We store the 20 bit
850 * difference either from the top or bottom of nonpaged pool, giving a
851 * maximum of 128MB to each delta, meaning nonpaged pool cannot exceed
854 if ((ULONG_PTR
)Segment
< ((ULONG_PTR
)MmSubsectionBase
+ (128 * _1MB
)))
856 Offset
= (ULONG_PTR
)Segment
- (ULONG_PTR
)MmSubsectionBase
;
857 NewPte
->u
.Subsect
.WhichPool
= PagedPool
;
861 Offset
= (ULONG_PTR
)MmNonPagedPoolEnd
- (ULONG_PTR
)Segment
;
862 NewPte
->u
.Subsect
.WhichPool
= NonPagedPool
;
866 * 4 bits go in the "low" (but we assume the bottom 3 are zero)
867 * and the other 20 bits go in the "high"
869 NewPte
->u
.Subsect
.SubsectionAddressLow
= (Offset
& 0x78) >> 3;
870 NewPte
->u
.Subsect
.SubsectionAddressHigh
= (Offset
& 0xFFFFF80) >> 7;
875 MI_IS_MAPPED_PTE(PMMPTE PointerPte
)
877 /// \todo Make this reasonable code, this is UGLY!
878 return ((PointerPte
->u
.Long
& 0xFFFFFC01) != 0);
884 // Returns if the page is physically resident (ie: a large page)
885 // FIXFIX: CISC/x86 only?
889 MI_IS_PHYSICAL_ADDRESS(IN PVOID Address
)
893 /* Large pages are never paged out, always physically resident */
894 PointerPde
= MiAddressToPde(Address
);
895 return ((PointerPde
->u
.Hard
.LargePage
) && (PointerPde
->u
.Hard
.Valid
));
899 // Writes a valid PTE
903 MI_WRITE_VALID_PTE(IN PMMPTE PointerPte
,
906 /* Write the valid PTE */
907 ASSERT(PointerPte
->u
.Hard
.Valid
== 0);
908 ASSERT(TempPte
.u
.Hard
.Valid
== 1);
909 *PointerPte
= TempPte
;
913 // Updates a valid PTE
917 MI_UPDATE_VALID_PTE(IN PMMPTE PointerPte
,
920 /* Write the valid PTE */
921 ASSERT(PointerPte
->u
.Hard
.Valid
== 1);
922 ASSERT(TempPte
.u
.Hard
.Valid
== 1);
923 ASSERT(PointerPte
->u
.Hard
.PageFrameNumber
== TempPte
.u
.Hard
.PageFrameNumber
);
924 *PointerPte
= TempPte
;
928 // Writes an invalid PTE
932 MI_WRITE_INVALID_PTE(IN PMMPTE PointerPte
,
935 /* Write the invalid PTE */
936 ASSERT(InvalidPte
.u
.Hard
.Valid
== 0);
937 ASSERT(InvalidPte
.u
.Long
!= 0);
938 *PointerPte
= InvalidPte
;
942 // Erase the PTE completely
946 MI_ERASE_PTE(IN PMMPTE PointerPte
)
948 /* Zero out the PTE */
949 ASSERT(PointerPte
->u
.Long
!= 0);
950 PointerPte
->u
.Long
= 0;
954 // Writes a valid PDE
958 MI_WRITE_VALID_PDE(IN PMMPDE PointerPde
,
961 /* Write the valid PDE */
962 ASSERT(PointerPde
->u
.Hard
.Valid
== 0);
963 ASSERT(TempPde
.u
.Hard
.Valid
== 1);
964 *PointerPde
= TempPde
;
968 // Writes an invalid PDE
972 MI_WRITE_INVALID_PDE(IN PMMPDE PointerPde
,
975 /* Write the invalid PDE */
976 ASSERT(InvalidPde
.u
.Hard
.Valid
== 0);
977 ASSERT(InvalidPde
.u
.Long
!= 0);
978 *PointerPde
= InvalidPde
;
982 // Checks if the thread already owns a working set
986 MM_ANY_WS_LOCK_HELD(IN PETHREAD Thread
)
988 /* If any of these are held, return TRUE */
989 return ((Thread
->OwnsProcessWorkingSetExclusive
) ||
990 (Thread
->OwnsProcessWorkingSetShared
) ||
991 (Thread
->OwnsSystemWorkingSetExclusive
) ||
992 (Thread
->OwnsSystemWorkingSetShared
) ||
993 (Thread
->OwnsSessionWorkingSetExclusive
) ||
994 (Thread
->OwnsSessionWorkingSetShared
));
998 // Checks if the process owns the working set lock
1002 MI_WS_OWNER(IN PEPROCESS Process
)
1004 /* Check if this process is the owner, and that the thread owns the WS */
1005 if (PsGetCurrentThread()->OwnsProcessWorkingSetExclusive
== 0)
1007 DPRINT("Thread: %p is not an owner\n", PsGetCurrentThread());
1009 if (KeGetCurrentThread()->ApcState
.Process
!= &Process
->Pcb
)
1011 DPRINT("Current thread %p is attached to another process %p\n", PsGetCurrentThread(), Process
);
1013 return ((KeGetCurrentThread()->ApcState
.Process
== &Process
->Pcb
) &&
1014 ((PsGetCurrentThread()->OwnsProcessWorkingSetExclusive
) ||
1015 (PsGetCurrentThread()->OwnsProcessWorkingSetShared
)));
1019 // New ARM3<->RosMM PAGE Architecture
1023 MiIsRosSectionObject(IN PVOID Section
)
1025 PROS_SECTION_OBJECT RosSection
= Section
;
1026 if ((RosSection
->Type
== 'SC') && (RosSection
->Size
== 'TN')) return TRUE
;
1030 #define MI_IS_ROS_PFN(x) ((x)->u4.AweAllocation == TRUE)
1034 MiDecrementReferenceCount(
1036 IN PFN_NUMBER PageFrameIndex
1041 MI_IS_WS_UNSAFE(IN PEPROCESS Process
)
1043 return (Process
->Vm
.Flags
.AcquiredUnsafe
== TRUE
);
1047 // Locks the working set for the given process
1051 MiLockProcessWorkingSet(IN PEPROCESS Process
,
1054 /* Shouldn't already be owning the process working set */
1055 ASSERT(Thread
->OwnsProcessWorkingSetShared
== FALSE
);
1056 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
1058 /* Block APCs, make sure that still nothing is already held */
1059 KeEnterGuardedRegion();
1060 ASSERT(!MM_ANY_WS_LOCK_HELD(Thread
));
1062 /* Lock the working set */
1063 ExAcquirePushLockExclusive(&Process
->Vm
.WorkingSetMutex
);
1065 /* Now claim that we own the lock */
1066 ASSERT(!MI_IS_WS_UNSAFE(Process
));
1067 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
1068 Thread
->OwnsProcessWorkingSetExclusive
= TRUE
;
1073 MiLockProcessWorkingSetShared(IN PEPROCESS Process
,
1076 /* Shouldn't already be owning the process working set */
1077 ASSERT(Thread
->OwnsProcessWorkingSetShared
== FALSE
);
1078 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
1080 /* Block APCs, make sure that still nothing is already held */
1081 KeEnterGuardedRegion();
1082 ASSERT(!MM_ANY_WS_LOCK_HELD(Thread
));
1084 /* Lock the working set */
1085 ExAcquirePushLockShared(&Process
->Vm
.WorkingSetMutex
);
1087 /* Now claim that we own the lock */
1088 ASSERT(!MI_IS_WS_UNSAFE(Process
));
1089 ASSERT(Thread
->OwnsProcessWorkingSetShared
== FALSE
);
1090 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
1091 Thread
->OwnsProcessWorkingSetShared
= TRUE
;
1096 MiLockProcessWorkingSetUnsafe(IN PEPROCESS Process
,
1099 /* Shouldn't already be owning the process working set */
1100 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
1102 /* APCs must be blocked, make sure that still nothing is already held */
1103 ASSERT(KeAreAllApcsDisabled() == TRUE
);
1104 ASSERT(!MM_ANY_WS_LOCK_HELD(Thread
));
1106 /* Lock the working set */
1107 ExAcquirePushLockExclusive(&Process
->Vm
.WorkingSetMutex
);
1109 /* Now claim that we own the lock */
1110 ASSERT(!MI_IS_WS_UNSAFE(Process
));
1111 Process
->Vm
.Flags
.AcquiredUnsafe
= 1;
1112 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
1113 Thread
->OwnsProcessWorkingSetExclusive
= TRUE
;
1117 // Unlocks the working set for the given process
1121 MiUnlockProcessWorkingSet(IN PEPROCESS Process
,
1124 /* Make sure we are the owner of a safe acquisition */
1125 ASSERT(MI_WS_OWNER(Process
));
1126 ASSERT(!MI_IS_WS_UNSAFE(Process
));
1128 /* The thread doesn't own it anymore */
1129 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== TRUE
);
1130 Thread
->OwnsProcessWorkingSetExclusive
= FALSE
;
1132 /* Release the lock and re-enable APCs */
1133 ExReleasePushLockExclusive(&Process
->Vm
.WorkingSetMutex
);
1134 KeLeaveGuardedRegion();
1138 // Unlocks the working set for the given process
1142 MiUnlockProcessWorkingSetShared(IN PEPROCESS Process
,
1145 /* Make sure we are the owner of a safe acquisition (because shared) */
1146 ASSERT(MI_WS_OWNER(Process
));
1147 ASSERT(!MI_IS_WS_UNSAFE(Process
));
1149 /* Ensure we are in a shared acquisition */
1150 ASSERT(Thread
->OwnsProcessWorkingSetShared
== TRUE
);
1151 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
1153 /* Don't claim the lock anylonger */
1154 Thread
->OwnsProcessWorkingSetShared
= FALSE
;
1156 /* Release the lock and re-enable APCs */
1157 ExReleasePushLockShared(&Process
->Vm
.WorkingSetMutex
);
1158 KeLeaveGuardedRegion();
1162 // Unlocks the working set for the given process
1166 MiUnlockProcessWorkingSetUnsafe(IN PEPROCESS Process
,
1169 /* Make sure we are the owner of an unsafe acquisition */
1170 ASSERT(KeGetCurrentIrql() <= APC_LEVEL
);
1171 ASSERT(KeAreAllApcsDisabled() == TRUE
);
1172 ASSERT(MI_WS_OWNER(Process
));
1173 ASSERT(MI_IS_WS_UNSAFE(Process
));
1175 /* No longer unsafe */
1176 Process
->Vm
.Flags
.AcquiredUnsafe
= 0;
1178 /* The thread doesn't own it anymore */
1179 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== TRUE
);
1180 Thread
->OwnsProcessWorkingSetExclusive
= FALSE
;
1182 /* Release the lock but don't touch APC state */
1183 ExReleasePushLockExclusive(&Process
->Vm
.WorkingSetMutex
);
1184 ASSERT(KeGetCurrentIrql() <= APC_LEVEL
);
1188 // Locks the working set
1192 MiLockWorkingSet(IN PETHREAD Thread
,
1193 IN PMMSUPPORT WorkingSet
)
1196 KeEnterGuardedRegion();
1198 /* Working set should be in global memory */
1199 ASSERT(MI_IS_SESSION_ADDRESS((PVOID
)WorkingSet
) == FALSE
);
1201 /* Thread shouldn't already be owning something */
1202 ASSERT(!MM_ANY_WS_LOCK_HELD(Thread
));
1204 /* Lock this working set */
1205 ExAcquirePushLockExclusive(&WorkingSet
->WorkingSetMutex
);
1207 /* Which working set is this? */
1208 if (WorkingSet
== &MmSystemCacheWs
)
1210 /* Own the system working set */
1211 ASSERT((Thread
->OwnsSystemWorkingSetExclusive
== FALSE
) &&
1212 (Thread
->OwnsSystemWorkingSetShared
== FALSE
));
1213 Thread
->OwnsSystemWorkingSetExclusive
= TRUE
;
1215 else if (WorkingSet
->Flags
.SessionSpace
)
1217 /* Own the session working set */
1218 ASSERT((Thread
->OwnsSessionWorkingSetExclusive
== FALSE
) &&
1219 (Thread
->OwnsSessionWorkingSetShared
== FALSE
));
1220 Thread
->OwnsSessionWorkingSetExclusive
= TRUE
;
1224 /* Own the process working set */
1225 ASSERT((Thread
->OwnsProcessWorkingSetExclusive
== FALSE
) &&
1226 (Thread
->OwnsProcessWorkingSetShared
== FALSE
));
1227 Thread
->OwnsProcessWorkingSetExclusive
= TRUE
;
1232 // Unlocks the working set
1236 MiUnlockWorkingSet(IN PETHREAD Thread
,
1237 IN PMMSUPPORT WorkingSet
)
1239 /* Working set should be in global memory */
1240 ASSERT(MI_IS_SESSION_ADDRESS((PVOID
)WorkingSet
) == FALSE
);
1242 /* Which working set is this? */
1243 if (WorkingSet
== &MmSystemCacheWs
)
1245 /* Release the system working set */
1246 ASSERT((Thread
->OwnsSystemWorkingSetExclusive
== TRUE
) ||
1247 (Thread
->OwnsSystemWorkingSetShared
== TRUE
));
1248 Thread
->OwnsSystemWorkingSetExclusive
= FALSE
;
1250 else if (WorkingSet
->Flags
.SessionSpace
)
1252 /* Release the session working set */
1253 ASSERT((Thread
->OwnsSessionWorkingSetExclusive
== TRUE
) ||
1254 (Thread
->OwnsSessionWorkingSetShared
== TRUE
));
1255 Thread
->OwnsSessionWorkingSetExclusive
= 0;
1259 /* Release the process working set */
1260 ASSERT((Thread
->OwnsProcessWorkingSetExclusive
) ||
1261 (Thread
->OwnsProcessWorkingSetShared
));
1262 Thread
->OwnsProcessWorkingSetExclusive
= FALSE
;
1265 /* Release the working set lock */
1266 ExReleasePushLockExclusive(&WorkingSet
->WorkingSetMutex
);
1269 KeLeaveGuardedRegion();
1274 MiUnlockProcessWorkingSetForFault(IN PEPROCESS Process
,
1277 OUT PBOOLEAN Shared
)
1279 ASSERT(MI_WS_OWNER(Process
));
1281 /* Check if the current owner is unsafe */
1282 if (MI_IS_WS_UNSAFE(Process
))
1284 /* Release unsafely */
1285 MiUnlockProcessWorkingSetUnsafe(Process
, Thread
);
1289 else if (Thread
->OwnsProcessWorkingSetExclusive
== 1)
1291 /* Owner is safe and exclusive, release normally */
1292 MiUnlockProcessWorkingSet(Process
, Thread
);
1298 /* Owner is shared (implies safe), release normally */
1299 MiUnlockProcessWorkingSetShared(Process
, Thread
);
1307 MiLockProcessWorkingSetForFault(IN PEPROCESS Process
,
1312 /* Check if this was a safe lock or not */
1317 /* Reacquire safely & shared */
1318 MiLockProcessWorkingSetShared(Process
, Thread
);
1322 /* Reacquire safely */
1323 MiLockProcessWorkingSet(Process
, Thread
);
1328 /* Unsafe lock cannot be shared */
1329 ASSERT(Shared
== FALSE
);
1330 /* Reacquire unsafely */
1331 MiLockProcessWorkingSetUnsafe(Process
, Thread
);
1337 MiAcquireExpansionLock(VOID
)
1341 ASSERT(KeGetCurrentIrql() <= APC_LEVEL
);
1342 KeAcquireSpinLock(&MmExpansionLock
, &OldIrql
);
1343 ASSERT(MiExpansionLockOwner
== NULL
);
1344 MiExpansionLockOwner
= PsGetCurrentThread();
1350 MiReleaseExpansionLock(KIRQL OldIrql
)
1352 ASSERT(MiExpansionLockOwner
== PsGetCurrentThread());
1353 MiExpansionLockOwner
= NULL
;
1354 KeReleaseSpinLock(&MmExpansionLock
, OldIrql
);
1355 ASSERT(KeGetCurrentIrql() <= APC_LEVEL
);
1359 // Returns the ProtoPTE inside a VAD for the given VPN
1363 MI_GET_PROTOTYPE_PTE_FOR_VPN(IN PMMVAD Vad
,
1368 /* Find the offset within the VAD's prototype PTEs */
1369 ProtoPte
= Vad
->FirstPrototypePte
+ (Vpn
- Vad
->StartingVpn
);
1370 ASSERT(ProtoPte
<= Vad
->LastContiguousPte
);
1375 // Returns the PFN Database entry for the given page number
1376 // Warning: This is not necessarily a valid PFN database entry!
1380 MI_PFN_ELEMENT(IN PFN_NUMBER Pfn
)
1383 return &MmPfnDatabase
[Pfn
];
1387 // Drops a locked page without dereferencing it
1391 MiDropLockCount(IN PMMPFN Pfn1
)
1393 /* This page shouldn't be locked, but it should be valid */
1394 ASSERT(Pfn1
->u3
.e2
.ReferenceCount
!= 0);
1395 ASSERT(Pfn1
->u2
.ShareCount
== 0);
1397 /* Is this the last reference to the page */
1398 if (Pfn1
->u3
.e2
.ReferenceCount
== 1)
1400 /* It better not be valid */
1401 ASSERT(Pfn1
->u3
.e1
.PageLocation
!= ActiveAndValid
);
1403 /* Is it a prototype PTE? */
1404 if ((Pfn1
->u3
.e1
.PrototypePte
== 1) &&
1405 (Pfn1
->OriginalPte
.u
.Soft
.Prototype
== 1))
1407 /* FIXME: We should return commit */
1408 DPRINT1("Not returning commit for prototype PTE\n");
1411 /* Update the counter */
1412 InterlockedDecrementSizeT(&MmSystemLockPagesCount
);
1417 // Drops a locked page and dereferences it
1421 MiDereferencePfnAndDropLockCount(IN PMMPFN Pfn1
)
1423 USHORT RefCount
, OldRefCount
;
1424 PFN_NUMBER PageFrameIndex
;
1426 /* Loop while we decrement the page successfully */
1429 /* There should be at least one reference */
1430 OldRefCount
= Pfn1
->u3
.e2
.ReferenceCount
;
1431 ASSERT(OldRefCount
!= 0);
1433 /* Are we the last one */
1434 if (OldRefCount
== 1)
1436 /* The page shoudln't be shared not active at this point */
1437 ASSERT(Pfn1
->u3
.e2
.ReferenceCount
== 1);
1438 ASSERT(Pfn1
->u3
.e1
.PageLocation
!= ActiveAndValid
);
1439 ASSERT(Pfn1
->u2
.ShareCount
== 0);
1441 /* Is it a prototype PTE? */
1442 if ((Pfn1
->u3
.e1
.PrototypePte
== 1) &&
1443 (Pfn1
->OriginalPte
.u
.Soft
.Prototype
== 1))
1445 /* FIXME: We should return commit */
1446 DPRINT1("Not returning commit for prototype PTE\n");
1449 /* Update the counter, and drop a reference the long way */
1450 InterlockedDecrementSizeT(&MmSystemLockPagesCount
);
1451 PageFrameIndex
= MiGetPfnEntryIndex(Pfn1
);
1452 MiDecrementReferenceCount(Pfn1
, PageFrameIndex
);
1456 /* Drop a reference the short way, and that's it */
1457 RefCount
= InterlockedCompareExchange16((PSHORT
)&Pfn1
->u3
.e2
.ReferenceCount
,
1460 ASSERT(RefCount
!= 0);
1461 } while (OldRefCount
!= RefCount
);
1463 /* If we got here, there should be more than one reference */
1464 ASSERT(RefCount
> 1);
1467 /* Is it still being shared? */
1468 if (Pfn1
->u2
.ShareCount
>= 1)
1470 /* Then it should be valid */
1471 ASSERT(Pfn1
->u3
.e1
.PageLocation
== ActiveAndValid
);
1473 /* Is it a prototype PTE? */
1474 if ((Pfn1
->u3
.e1
.PrototypePte
== 1) &&
1475 (Pfn1
->OriginalPte
.u
.Soft
.Prototype
== 1))
1477 /* We don't handle ethis */
1481 /* Update the counter */
1482 InterlockedDecrementSizeT(&MmSystemLockPagesCount
);
1488 // References a locked page and updates the counter
1489 // Used in MmProbeAndLockPages to handle different edge cases
1493 MiReferenceProbedPageAndBumpLockCount(IN PMMPFN Pfn1
)
1495 USHORT RefCount
, OldRefCount
;
1498 ASSERT(Pfn1
->u3
.e2
.ReferenceCount
!= 0);
1500 /* Does ARM3 own the page? */
1501 if (MI_IS_ROS_PFN(Pfn1
))
1503 /* ReactOS Mm doesn't track share count */
1504 ASSERT(Pfn1
->u3
.e1
.PageLocation
== ActiveAndValid
);
1508 /* On ARM3 pages, we should see a valid share count */
1509 ASSERT((Pfn1
->u2
.ShareCount
!= 0) && (Pfn1
->u3
.e1
.PageLocation
== ActiveAndValid
));
1511 /* Is it a prototype PTE? */
1512 if ((Pfn1
->u3
.e1
.PrototypePte
== 1) &&
1513 (Pfn1
->OriginalPte
.u
.Soft
.Prototype
== 1))
1515 /* FIXME: We should charge commit */
1516 DPRINT1("Not charging commit for prototype PTE\n");
1520 /* More locked pages! */
1521 InterlockedIncrementSizeT(&MmSystemLockPagesCount
);
1523 /* Loop trying to update the reference count */
1526 /* Get the current reference count, make sure it's valid */
1527 OldRefCount
= Pfn1
->u3
.e2
.ReferenceCount
;
1528 ASSERT(OldRefCount
!= 0);
1529 ASSERT(OldRefCount
< 2500);
1531 /* Bump it up by one */
1532 RefCount
= InterlockedCompareExchange16((PSHORT
)&Pfn1
->u3
.e2
.ReferenceCount
,
1535 ASSERT(RefCount
!= 0);
1536 } while (OldRefCount
!= RefCount
);
1538 /* Was this the first lock attempt? If not, undo our bump */
1539 if (OldRefCount
!= 1) InterlockedDecrementSizeT(&MmSystemLockPagesCount
);
1543 // References a locked page and updates the counter
1544 // Used in all other cases except MmProbeAndLockPages
1548 MiReferenceUsedPageAndBumpLockCount(IN PMMPFN Pfn1
)
1552 /* Is it a prototype PTE? */
1553 if ((Pfn1
->u3
.e1
.PrototypePte
== 1) &&
1554 (Pfn1
->OriginalPte
.u
.Soft
.Prototype
== 1))
1556 /* FIXME: We should charge commit */
1557 DPRINT1("Not charging commit for prototype PTE\n");
1560 /* More locked pages! */
1561 InterlockedIncrementSizeT(&MmSystemLockPagesCount
);
1563 /* Update the reference count */
1564 NewRefCount
= InterlockedIncrement16((PSHORT
)&Pfn1
->u3
.e2
.ReferenceCount
);
1565 if (NewRefCount
== 2)
1567 /* Is it locked or shared? */
1568 if (Pfn1
->u2
.ShareCount
)
1570 /* It's shared, so make sure it's active */
1571 ASSERT(Pfn1
->u3
.e1
.PageLocation
== ActiveAndValid
);
1575 /* It's locked, so we shouldn't lock again */
1576 InterlockedDecrementSizeT(&MmSystemLockPagesCount
);
1581 /* Someone had already locked the page, so undo our bump */
1582 ASSERT(NewRefCount
< 2500);
1583 InterlockedDecrementSizeT(&MmSystemLockPagesCount
);
1588 // References a locked page and updates the counter
1589 // Used in all other cases except MmProbeAndLockPages
1593 MiReferenceUnusedPageAndBumpLockCount(IN PMMPFN Pfn1
)
1597 /* Make sure the page isn't used yet */
1598 ASSERT(Pfn1
->u2
.ShareCount
== 0);
1599 ASSERT(Pfn1
->u3
.e1
.PageLocation
!= ActiveAndValid
);
1601 /* Is it a prototype PTE? */
1602 if ((Pfn1
->u3
.e1
.PrototypePte
== 1) &&
1603 (Pfn1
->OriginalPte
.u
.Soft
.Prototype
== 1))
1605 /* FIXME: We should charge commit */
1606 DPRINT1("Not charging commit for prototype PTE\n");
1609 /* More locked pages! */
1610 InterlockedIncrementSizeT(&MmSystemLockPagesCount
);
1612 /* Update the reference count */
1613 NewRefCount
= InterlockedIncrement16((PSHORT
)&Pfn1
->u3
.e2
.ReferenceCount
);
1614 if (NewRefCount
!= 1)
1616 /* Someone had already locked the page, so undo our bump */
1617 ASSERT(NewRefCount
< 2500);
1618 InterlockedDecrementSizeT(&MmSystemLockPagesCount
);
1624 MiIncrementPageTableReferences(IN PVOID Address
)
1628 RefCount
= &MmWorkingSetList
->UsedPageTableEntries
[MiGetPdeOffset(Address
)];
1631 ASSERT(*RefCount
<= PTE_PER_PAGE
);
1636 MiDecrementPageTableReferences(IN PVOID Address
)
1640 RefCount
= &MmWorkingSetList
->UsedPageTableEntries
[MiGetPdeOffset(Address
)];
1643 ASSERT(*RefCount
< PTE_PER_PAGE
);
1648 MiQueryPageTableReferences(IN PVOID Address
)
1652 RefCount
= &MmWorkingSetList
->UsedPageTableEntries
[MiGetPdeOffset(Address
)];
1661 IN PLOADER_PARAMETER_BLOCK LoaderBlock
1666 MiInitializeSessionSpaceLayout(VOID
);
1670 MiInitMachineDependent(
1671 IN PLOADER_PARAMETER_BLOCK LoaderBlock
1676 MiComputeColorInformation(
1683 IN PLOADER_PARAMETER_BLOCK LoaderBlock
1688 MiInitializeColorTables(
1694 MiInitializePfnDatabase(
1695 IN PLOADER_PARAMETER_BLOCK LoaderBlock
1700 MiInitializeSessionWsSupport(
1706 MiInitializeSessionIds(
1712 MiInitializeMemoryEvents(
1719 IN PFN_NUMBER PageCount
1722 PPHYSICAL_MEMORY_DESCRIPTOR
1724 MmInitializeMemoryLimits(
1725 IN PLOADER_PARAMETER_BLOCK LoaderBlock
,
1726 IN PBOOLEAN IncludeType
1731 MiPagesInLoaderBlock(
1732 IN PLOADER_PARAMETER_BLOCK LoaderBlock
,
1733 IN PBOOLEAN IncludeType
1739 IN PVOID AddressStart
,
1745 MiRosProtectVirtualMemory(
1746 IN PEPROCESS Process
,
1747 IN OUT PVOID
*BaseAddress
,
1748 IN OUT PSIZE_T NumberOfBytesToProtect
,
1749 IN ULONG NewAccessProtection
,
1750 OUT PULONG OldAccessProtection OPTIONAL
1756 IN BOOLEAN StoreInstruction
,
1758 IN KPROCESSOR_MODE Mode
,
1759 IN PVOID TrapInformation
1764 MiCheckPdeForPagedPool(
1770 MiInitializeNonPagedPool(
1776 MiInitializeNonPagedPoolThresholds(
1782 MiInitializePoolEvents(
1789 IN POOL_TYPE PoolType
,// FIXFIX: This should go in ex.h after the pool merge
1790 IN ULONG Threshold
//
1793 // FIXFIX: THIS ONE TOO
1797 ExInitializePoolDescriptor(
1798 IN PPOOL_DESCRIPTOR PoolDescriptor
,
1799 IN POOL_TYPE PoolType
,
1807 MiInitializeSessionPool(
1813 MiInitializeSystemPtes(
1814 IN PMMPTE StartingPte
,
1815 IN ULONG NumberOfPtes
,
1816 IN MMSYSTEM_PTE_POOL_TYPE PoolType
1821 MiReserveSystemPtes(
1822 IN ULONG NumberOfPtes
,
1823 IN MMSYSTEM_PTE_POOL_TYPE SystemPtePoolType
1828 MiReleaseSystemPtes(
1829 IN PMMPTE StartingPte
,
1830 IN ULONG NumberOfPtes
,
1831 IN MMSYSTEM_PTE_POOL_TYPE SystemPtePoolType
1837 MiFindContiguousPages(
1838 IN PFN_NUMBER LowestPfn
,
1839 IN PFN_NUMBER HighestPfn
,
1840 IN PFN_NUMBER BoundaryPfn
,
1841 IN PFN_NUMBER SizeInPages
,
1842 IN MEMORY_CACHING_TYPE CacheType
1847 MiCheckForContiguousMemory(
1848 IN PVOID BaseAddress
,
1849 IN PFN_NUMBER BaseAddressPages
,
1850 IN PFN_NUMBER SizeInPages
,
1851 IN PFN_NUMBER LowestPfn
,
1852 IN PFN_NUMBER HighestPfn
,
1853 IN PFN_NUMBER BoundaryPfn
,
1854 IN MI_PFN_CACHE_ATTRIBUTE CacheAttribute
1859 MiAllocatePagesForMdl(
1860 IN PHYSICAL_ADDRESS LowAddress
,
1861 IN PHYSICAL_ADDRESS HighAddress
,
1862 IN PHYSICAL_ADDRESS SkipBytes
,
1863 IN SIZE_T TotalBytes
,
1864 IN MI_PFN_CACHE_ATTRIBUTE CacheAttribute
,
1870 MiMapLockedPagesInUserSpace(
1873 IN MEMORY_CACHING_TYPE CacheType
,
1874 IN PVOID BaseAddress
1879 MiUnmapLockedPagesInUserSpace(
1880 IN PVOID BaseAddress
,
1887 IN PMMPFNLIST ListHead
,
1888 IN PFN_NUMBER PageFrameIndex
1893 MiUnlinkFreeOrZeroedPage(
1899 MiUnlinkPageFromList(
1906 IN PFN_NUMBER PageFrameIndex
,
1907 IN PMMPTE PointerPte
,
1913 MiInitializeAndChargePfn(
1914 OUT PPFN_NUMBER PageFrameIndex
,
1915 IN PMMPDE PointerPde
,
1916 IN PFN_NUMBER ContainingPageFrame
,
1917 IN BOOLEAN SessionAllocation
1922 MiInitializePfnAndMakePteValid(
1923 IN PFN_NUMBER PageFrameIndex
,
1924 IN PMMPTE PointerPte
,
1930 MiInitializePfnForOtherProcess(
1931 IN PFN_NUMBER PageFrameIndex
,
1932 IN PVOID PteAddress
,
1933 IN PFN_NUMBER PteFrame
1938 MiDecrementShareCount(
1940 IN PFN_NUMBER PageFrameIndex
1958 IN PFN_NUMBER PageFrameIndex
1963 MiInsertPageInFreeList(
1964 IN PFN_NUMBER PageFrameIndex
1969 MiDeleteSystemPageableVm(
1970 IN PMMPTE PointerPte
,
1971 IN PFN_NUMBER PageCount
,
1973 OUT PPFN_NUMBER ValidPages
1978 MiGetPageProtection(
1979 IN PMMPTE PointerPte
1982 PLDR_DATA_TABLE_ENTRY
1984 MiLookupDataTableEntry(
1990 MiInitializeDriverLargePageList(
1996 MiInitializeLargePageSupport(
2015 IN PVOID VirtualAddress
2020 MiCheckForConflictingNode(
2021 IN ULONG_PTR StartVpn
,
2022 IN ULONG_PTR EndVpn
,
2023 IN PMM_AVL_TABLE Table
,
2024 OUT PMMADDRESS_NODE
*NodeOrParent
2029 MiFindEmptyAddressRangeDownTree(
2031 IN ULONG_PTR BoundaryAddress
,
2032 IN ULONG_PTR Alignment
,
2033 IN PMM_AVL_TABLE Table
,
2034 OUT PULONG_PTR Base
,
2035 OUT PMMADDRESS_NODE
*Parent
2040 MiFindEmptyAddressRangeDownBasedTree(
2042 IN ULONG_PTR BoundaryAddress
,
2043 IN ULONG_PTR Alignment
,
2044 IN PMM_AVL_TABLE Table
,
2050 MiFindEmptyAddressRangeInTree(
2052 IN ULONG_PTR Alignment
,
2053 IN PMM_AVL_TABLE Table
,
2054 OUT PMMADDRESS_NODE
*PreviousVad
,
2064 IN ULONG ProtectionMask
2071 _In_ ULONG_PTR
*BaseAddress
,
2072 _In_ SIZE_T ViewSize
,
2073 _In_ ULONG_PTR HighestAddress
,
2074 _In_ ULONG_PTR Alignment
,
2075 _In_ ULONG AllocationType
);
2079 MiInsertBasedSection(
2085 MiUnmapViewOfSection(
2086 IN PEPROCESS Process
,
2087 IN PVOID BaseAddress
,
2093 MiRosUnmapViewOfSection(
2094 IN PEPROCESS Process
,
2095 IN PVOID BaseAddress
,
2102 IN PMM_AVL_TABLE Table
,
2103 IN PMMADDRESS_NODE NewNode
,
2104 PMMADDRESS_NODE Parent
,
2105 TABLE_SEARCH_RESULT Result
2111 IN PMMADDRESS_NODE Node
,
2112 IN PMM_AVL_TABLE Table
2118 IN PMMADDRESS_NODE Node
2124 IN PMMADDRESS_NODE Node
2129 MiInitializeSystemSpaceMap(
2130 IN PMMSESSION InputSession OPTIONAL
2135 MiSessionRemoveProcess(
2141 MiReleaseProcessReferenceToSessionDataPage(
2142 IN PMM_SESSION_SPACE SessionGlobal
2147 MiSessionAddProcess(
2148 IN PEPROCESS NewProcess
2153 MiSessionCommitPageTables(
2160 MiMakeProtectionMask(
2166 MiDeleteVirtualAddresses(
2168 IN ULONG_PTR EndingAddress
,
2174 MiMakeSystemAddressValid(
2175 IN PVOID PageTableVirtualAddress
,
2176 IN PEPROCESS CurrentProcess
2181 MiMakeSystemAddressValidPfn(
2182 IN PVOID VirtualAddress
,
2189 IN PEPROCESS CurrentProcess
,
2202 MiDeleteARM3Section(
2208 MiQueryMemorySectionName(
2209 IN HANDLE ProcessHandle
,
2210 IN PVOID BaseAddress
,
2211 OUT PVOID MemoryInformation
,
2212 IN SIZE_T MemoryInformationLength
,
2213 OUT PSIZE_T ReturnLength
2218 MiRosUnmapViewInSystemSpace(
2224 MmDeterminePoolType(
2225 IN PVOID PoolAddress
2230 MiMakePdeExistAndMakeValid(
2231 IN PMMPDE PointerPde
,
2232 IN PEPROCESS TargetProcess
,
2237 // MiRemoveZeroPage will use inline code to zero out the page manually if only
2238 // free pages are available. In some scenarios, we don't/can't run that piece of
2239 // code and would rather only have a real zero page. If we can't have a zero page,
2240 // then we'd like to have our own code to grab a free page and zero it out, by
2241 // using MiRemoveAnyPage. This macro implements this.
2245 MiRemoveZeroPageSafe(IN ULONG Color
)
2247 if (MmFreePagesByColor
[ZeroedPageList
][Color
].Flink
!= LIST_HEAD
) return MiRemoveZeroPage(Color
);