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
11 #define MI_MIN_PAGES_FOR_NONPAGED_POOL_TUNING ((255 * _1MB) >> PAGE_SHIFT)
12 #define MI_MIN_PAGES_FOR_SYSPTE_TUNING ((19 * _1MB) >> PAGE_SHIFT)
13 #define MI_MIN_PAGES_FOR_SYSPTE_BOOST ((32 * _1MB) >> PAGE_SHIFT)
14 #define MI_MAX_INIT_NONPAGED_POOL_SIZE (128 * _1MB)
15 #define MI_MAX_NONPAGED_POOL_SIZE (128 * _1MB)
16 #define MI_MAX_FREE_PAGE_LISTS 4
18 #define MI_MIN_INIT_PAGED_POOLSIZE (32 * _1MB)
20 #define MI_SESSION_VIEW_SIZE (20 * _1MB)
21 #define MI_SESSION_POOL_SIZE (16 * _1MB)
22 #define MI_SESSION_IMAGE_SIZE (8 * _1MB)
23 #define MI_SESSION_WORKING_SET_SIZE (4 * _1MB)
24 #define MI_SESSION_SIZE (MI_SESSION_VIEW_SIZE + \
25 MI_SESSION_POOL_SIZE + \
26 MI_SESSION_IMAGE_SIZE + \
27 MI_SESSION_WORKING_SET_SIZE)
29 #define MI_SYSTEM_VIEW_SIZE (16 * _1MB)
31 #define MI_SYSTEM_CACHE_WS_START (PVOID)0xC0C00000
32 #define MI_PAGED_POOL_START (PVOID)0xE1000000
33 #define MI_NONPAGED_POOL_END (PVOID)0xFFBE0000
34 #define MI_DEBUG_MAPPING (PVOID)0xFFBFF000
36 #define MI_SYSTEM_PTE_BASE (PVOID)MiAddressToPte(NULL)
38 #define MI_MIN_SECONDARY_COLORS 8
39 #define MI_SECONDARY_COLORS 64
40 #define MI_MAX_SECONDARY_COLORS 1024
42 #define MI_MIN_ALLOCATION_FRAGMENT (4 * _1KB)
43 #define MI_ALLOCATION_FRAGMENT (64 * _1KB)
44 #define MI_MAX_ALLOCATION_FRAGMENT (2 * _1MB)
46 #define MM_HIGHEST_VAD_ADDRESS \
47 (PVOID)((ULONG_PTR)MM_HIGHEST_USER_ADDRESS - (16 * PAGE_SIZE))
48 #define MI_LOWEST_VAD_ADDRESS (PVOID)MM_LOWEST_USER_ADDRESS
50 #endif /* !_M_AMD64 */
52 /* Make the code cleaner with some definitions for size multiples */
54 #define _1MB (1024 * _1KB)
55 #define _1GB (1024 * _1MB)
57 /* Everyone loves 64K */
58 #define _64K (64 * _1KB)
60 /* Area mapped by a PDE */
61 #define PDE_MAPPED_VA (PTE_COUNT * PAGE_SIZE)
63 /* Size of a page table */
64 #define PT_SIZE (PTE_COUNT * sizeof(MMPTE))
66 /* Size of a page directory */
67 #define PD_SIZE (PDE_COUNT * sizeof(MMPDE))
69 /* Size of all page directories for a process */
70 #define SYSTEM_PD_SIZE (PD_COUNT * PD_SIZE)
72 /* Architecture specific count of PDEs in a directory, and count of PTEs in a PT */
75 #define PDE_COUNT 1024
76 #define PTE_COUNT 1024
77 C_ASSERT(SYSTEM_PD_SIZE
== PAGE_SIZE
);
80 #define PDE_COUNT 4096
83 #define PD_COUNT PPE_PER_PAGE
84 #define PDE_COUNT PDE_PER_PAGE
85 #define PTE_COUNT PTE_PER_PAGE
89 #define IMAGE_FILE_MACHINE_NATIVE IMAGE_FILE_MACHINE_I386
91 #define IMAGE_FILE_MACHINE_NATIVE IMAGE_FILE_MACHINE_ARM
93 #define IMAGE_FILE_MACHINE_NATIVE IMAGE_FILE_MACHINE_AMD64
95 #error Define these please!
99 // Protection Bits part of the internal memory manager Protection Mask
100 // Taken from http://www.reactos.org/wiki/Techwiki:Memory_management_in_the_Windows_XP_kernel
101 // and public assertions.
103 #define MM_ZERO_ACCESS 0
104 #define MM_READONLY 1
106 #define MM_EXECUTE_READ 3
107 #define MM_READWRITE 4
108 #define MM_WRITECOPY 5
109 #define MM_EXECUTE_READWRITE 6
110 #define MM_EXECUTE_WRITECOPY 7
112 #define MM_DECOMMIT 0x10
113 #define MM_NOACCESS (MM_DECOMMIT | MM_NOCACHE)
114 #define MM_INVALID_PROTECTION 0xFFFFFFFF
117 // Specific PTE Definitions that map to the Memory Manager's Protection Mask Bits
118 // The Memory Manager's definition define the attributes that must be preserved
119 // and these PTE definitions describe the attributes in the hardware sense. This
120 // helps deal with hardware differences between the actual boolean expression of
123 // For example, in the logical attributes, we want to express read-only as a flag
124 // but on x86, it is writability that must be set. On the other hand, on x86, just
125 // like in the kernel, it is disabling the caches that requires a special flag,
126 // while on certain architectures such as ARM, it is enabling the cache which
129 #if defined(_M_IX86) || defined(_M_AMD64)
133 #define PTE_READONLY 0
134 #define PTE_EXECUTE 0 // Not worrying about NX yet
135 #define PTE_EXECUTE_READ 0 // Not worrying about NX yet
136 #define PTE_READWRITE 0x2
137 #define PTE_WRITECOPY 0x200
138 #define PTE_EXECUTE_READWRITE 0x0
139 #define PTE_EXECUTE_WRITECOPY 0x200
140 #define PTE_PROTOTYPE 0x400
144 #define PTE_ENABLE_CACHE 0
145 #define PTE_DISABLE_CACHE 0x10
146 #define PTE_WRITECOMBINED_CACHE 0x10
147 #elif defined(_M_ARM)
149 #error Define these please!
152 extern const ULONG MmProtectToPteMask
[32];
153 extern const ULONG MmProtectToValue
[32];
156 // Assertions for session images, addresses, and PTEs
158 #define MI_IS_SESSION_IMAGE_ADDRESS(Address) \
159 (((Address) >= MiSessionImageStart) && ((Address) < MiSessionImageEnd))
161 #define MI_IS_SESSION_ADDRESS(Address) \
162 (((Address) >= MmSessionBase) && ((Address) < MiSessionSpaceEnd))
164 #define MI_IS_SESSION_PTE(Pte) \
165 ((((PMMPTE)Pte) >= MiSessionBasePte) && (((PMMPTE)Pte) < MiSessionLastPte))
167 #define MI_IS_PAGE_TABLE_ADDRESS(Address) \
168 (((PVOID)(Address) >= (PVOID)PTE_BASE) && ((PVOID)(Address) <= (PVOID)PTE_TOP))
170 #define MI_IS_SYSTEM_PAGE_TABLE_ADDRESS(Address) \
171 (((Address) >= (PVOID)MiAddressToPte(MmSystemRangeStart)) && ((Address) <= (PVOID)PTE_TOP))
173 #define MI_IS_PAGE_TABLE_OR_HYPER_ADDRESS(Address) \
174 (((PVOID)(Address) >= (PVOID)PTE_BASE) && ((PVOID)(Address) <= (PVOID)MmHyperSpaceEnd))
177 // Corresponds to MMPTE_SOFTWARE.Protection
180 #define MM_PTE_SOFTWARE_PROTECTION_BITS 5
182 #define MM_PTE_SOFTWARE_PROTECTION_BITS 5
184 #define MM_PTE_SOFTWARE_PROTECTION_BITS 5
186 #error Define these please!
190 // Creates a software PTE with the given protection
192 #define MI_MAKE_SOFTWARE_PTE(p, x) ((p)->u.Long = (x << MM_PTE_SOFTWARE_PROTECTION_BITS))
195 // Marks a PTE as deleted
197 #define MI_SET_PFN_DELETED(x) ((x)->PteAddress = (PMMPTE)((ULONG_PTR)(x)->PteAddress | 1))
198 #define MI_IS_PFN_DELETED(x) ((ULONG_PTR)((x)->PteAddress) & 1)
201 // Special values for LoadedImports
203 #define MM_SYSLDR_NO_IMPORTS (PVOID)0xFFFFFFFE
204 #define MM_SYSLDR_BOOT_LOADED (PVOID)0xFFFFFFFF
205 #define MM_SYSLDR_SINGLE_ENTRY 0x1
207 #if defined(_M_IX86) || defined(_M_ARM)
211 #define LIST_HEAD 0xFFFFFFFF
214 // Because GCC cannot automatically downcast 0xFFFFFFFF to lesser-width bits,
215 // we need a manual definition suited to the number of bits in the PteFrame.
216 // This is used as a LIST_HEAD for the colored list
218 #define COLORED_LIST_HEAD ((1 << 25) - 1) // 0x1FFFFFF
219 #elif defined(_M_AMD64)
220 #define LIST_HEAD 0xFFFFFFFFFFFFFFFFLL
221 #define COLORED_LIST_HEAD ((1 << 57) - 1) // 0x1FFFFFFFFFFFFFFLL
223 #error Define these please!
227 // Special IRQL value (found in assertions)
229 #define MM_NOIRQL (KIRQL)0xFFFFFFFF
232 // Returns the color of a page
234 #define MI_GET_PAGE_COLOR(x) ((x) & MmSecondaryColorMask)
235 #define MI_GET_NEXT_COLOR(x) (MI_GET_PAGE_COLOR(++MmSystemPageColor))
236 #define MI_GET_NEXT_PROCESS_COLOR(x) (MI_GET_PAGE_COLOR(++(x)->NextPageColor))
240 // Decodes a Prototype PTE into the underlying PTE
242 #define MiProtoPteToPte(x) \
243 (PMMPTE)((ULONG_PTR)MmPagedPoolStart + \
244 (((x)->u.Proto.ProtoAddressHigh << 7) | (x)->u.Proto.ProtoAddressLow))
248 // Prototype PTEs that don't yet have a pagefile association
250 #define MI_PTE_LOOKUP_NEEDED 0xFFFFF
253 // System views are binned into 64K chunks
255 #define MI_SYSTEM_VIEW_BUCKET_SIZE _64K
258 // FIXFIX: These should go in ex.h after the pool merge
261 #define POOL_BLOCK_SIZE 16
263 #define POOL_BLOCK_SIZE 8
265 #define POOL_LISTS_PER_PAGE (PAGE_SIZE / POOL_BLOCK_SIZE)
266 #define BASE_POOL_TYPE_MASK 1
267 #define POOL_MAX_ALLOC (PAGE_SIZE - (sizeof(POOL_HEADER) + POOL_BLOCK_SIZE))
269 typedef struct _POOL_DESCRIPTOR
274 ULONG RunningDeAllocs
;
280 LONG PendingFreeDepth
;
283 LIST_ENTRY ListHeads
[POOL_LISTS_PER_PAGE
];
284 } POOL_DESCRIPTOR
, *PPOOL_DESCRIPTOR
;
286 typedef struct _POOL_HEADER
293 ULONG PreviousSize
:8;
298 USHORT PreviousSize
:9;
312 PEPROCESS ProcessBilled
;
318 USHORT AllocatorBackTraceIndex
;
322 } POOL_HEADER
, *PPOOL_HEADER
;
324 C_ASSERT(sizeof(POOL_HEADER
) == POOL_BLOCK_SIZE
);
325 C_ASSERT(POOL_BLOCK_SIZE
== sizeof(LIST_ENTRY
));
327 extern ULONG ExpNumberOfPagedPools
;
328 extern POOL_DESCRIPTOR NonPagedPoolDescriptor
;
329 extern PPOOL_DESCRIPTOR ExpPagedPoolDescriptor
[16 + 1];
330 extern PVOID PoolTrackTable
;
336 typedef struct _MI_LARGE_PAGE_DRIVER_ENTRY
339 UNICODE_STRING BaseName
;
340 } MI_LARGE_PAGE_DRIVER_ENTRY
, *PMI_LARGE_PAGE_DRIVER_ENTRY
;
342 typedef enum _MMSYSTEM_PTE_POOL_TYPE
345 NonPagedPoolExpansion
,
347 } MMSYSTEM_PTE_POOL_TYPE
;
349 typedef enum _MI_PFN_CACHE_ATTRIBUTE
355 } MI_PFN_CACHE_ATTRIBUTE
, *PMI_PFN_CACHE_ATTRIBUTE
;
357 typedef struct _PHYSICAL_MEMORY_RUN
361 } PHYSICAL_MEMORY_RUN
, *PPHYSICAL_MEMORY_RUN
;
363 typedef struct _PHYSICAL_MEMORY_DESCRIPTOR
367 PHYSICAL_MEMORY_RUN Run
[1];
368 } PHYSICAL_MEMORY_DESCRIPTOR
, *PPHYSICAL_MEMORY_DESCRIPTOR
;
370 typedef struct _MMCOLOR_TABLES
375 } MMCOLOR_TABLES
, *PMMCOLOR_TABLES
;
377 typedef struct _MI_LARGE_PAGE_RANGES
379 PFN_NUMBER StartFrame
;
380 PFN_NUMBER LastFrame
;
381 } MI_LARGE_PAGE_RANGES
, *PMI_LARGE_PAGE_RANGES
;
383 typedef struct _MMVIEW
386 PCONTROL_AREA ControlArea
;
389 typedef struct _MMSESSION
391 KGUARDED_MUTEX SystemSpaceViewLock
;
392 PKGUARDED_MUTEX SystemSpaceViewLockPointer
;
393 PCHAR SystemSpaceViewStart
;
394 PMMVIEW SystemSpaceViewTable
;
395 ULONG SystemSpaceHashSize
;
396 ULONG SystemSpaceHashEntries
;
397 ULONG SystemSpaceHashKey
;
398 ULONG BitmapFailures
;
399 PRTL_BITMAP SystemSpaceBitMap
;
400 } MMSESSION
, *PMMSESSION
;
402 extern MMPTE HyperTemplatePte
;
403 extern MMPDE ValidKernelPde
;
404 extern MMPTE ValidKernelPte
;
405 extern MMPDE DemandZeroPde
;
406 extern MMPTE PrototypePte
;
407 extern BOOLEAN MmLargeSystemCache
;
408 extern BOOLEAN MmZeroPageFile
;
409 extern BOOLEAN MmProtectFreedNonPagedPool
;
410 extern BOOLEAN MmTrackLockedPages
;
411 extern BOOLEAN MmTrackPtes
;
412 extern BOOLEAN MmDynamicPfn
;
413 extern BOOLEAN MmMirroring
;
414 extern BOOLEAN MmMakeLowMemory
;
415 extern BOOLEAN MmEnforceWriteProtection
;
416 extern SIZE_T MmAllocationFragment
;
417 extern ULONG MmConsumedPoolPercentage
;
418 extern ULONG MmVerifyDriverBufferType
;
419 extern ULONG MmVerifyDriverLevel
;
420 extern WCHAR MmVerifyDriverBuffer
[512];
421 extern WCHAR MmLargePageDriverBuffer
[512];
422 extern LIST_ENTRY MiLargePageDriverList
;
423 extern BOOLEAN MiLargePageAllDrivers
;
424 extern ULONG MmVerifyDriverBufferLength
;
425 extern ULONG MmLargePageDriverBufferLength
;
426 extern SIZE_T MmSizeOfNonPagedPoolInBytes
;
427 extern SIZE_T MmMaximumNonPagedPoolInBytes
;
428 extern PFN_NUMBER MmMaximumNonPagedPoolInPages
;
429 extern PFN_NUMBER MmSizeOfPagedPoolInPages
;
430 extern PVOID MmNonPagedSystemStart
;
431 extern PVOID MmNonPagedPoolStart
;
432 extern PVOID MmNonPagedPoolExpansionStart
;
433 extern PVOID MmNonPagedPoolEnd
;
434 extern SIZE_T MmSizeOfPagedPoolInBytes
;
435 extern PVOID MmPagedPoolStart
;
436 extern PVOID MmPagedPoolEnd
;
437 extern PVOID MmSessionBase
;
438 extern SIZE_T MmSessionSize
;
439 extern PMMPTE MmFirstReservedMappingPte
, MmLastReservedMappingPte
;
440 extern PMMPTE MiFirstReservedZeroingPte
;
441 extern MI_PFN_CACHE_ATTRIBUTE MiPlatformCacheAttributes
[2][MmMaximumCacheType
];
442 extern PPHYSICAL_MEMORY_DESCRIPTOR MmPhysicalMemoryBlock
;
443 extern SIZE_T MmBootImageSize
;
444 extern PMMPTE MmSystemPtesStart
[MaximumPtePoolTypes
];
445 extern PMMPTE MmSystemPtesEnd
[MaximumPtePoolTypes
];
446 extern PMEMORY_ALLOCATION_DESCRIPTOR MxFreeDescriptor
;
447 extern MEMORY_ALLOCATION_DESCRIPTOR MxOldFreeDescriptor
;
448 extern ULONG_PTR MxPfnAllocation
;
449 extern MM_PAGED_POOL_INFO MmPagedPoolInfo
;
450 extern RTL_BITMAP MiPfnBitMap
;
451 extern KGUARDED_MUTEX MmPagedPoolMutex
;
452 extern PVOID MmPagedPoolStart
;
453 extern PVOID MmPagedPoolEnd
;
454 extern PVOID MmNonPagedSystemStart
;
455 extern PVOID MiSystemViewStart
;
456 extern SIZE_T MmSystemViewSize
;
457 extern PVOID MmSessionBase
;
458 extern PVOID MiSessionSpaceEnd
;
459 extern PMMPTE MiSessionImagePteStart
;
460 extern PMMPTE MiSessionImagePteEnd
;
461 extern PMMPTE MiSessionBasePte
;
462 extern PMMPTE MiSessionLastPte
;
463 extern SIZE_T MmSizeOfPagedPoolInBytes
;
464 extern PMMPTE MmSystemPagePtes
;
465 extern PVOID MmSystemCacheStart
;
466 extern PVOID MmSystemCacheEnd
;
467 extern MMSUPPORT MmSystemCacheWs
;
468 extern SIZE_T MmAllocatedNonPagedPool
;
469 extern ULONG_PTR MmSubsectionBase
;
470 extern ULONG MmSpecialPoolTag
;
471 extern PVOID MmHyperSpaceEnd
;
472 extern PMMWSL MmSystemCacheWorkingSetList
;
473 extern SIZE_T MmMinimumNonPagedPoolSize
;
474 extern ULONG MmMinAdditionNonPagedPoolPerMb
;
475 extern SIZE_T MmDefaultMaximumNonPagedPool
;
476 extern ULONG MmMaxAdditionNonPagedPoolPerMb
;
477 extern ULONG MmSecondaryColors
;
478 extern ULONG MmSecondaryColorMask
;
479 extern ULONG_PTR MmNumberOfSystemPtes
;
480 extern ULONG MmMaximumNonPagedPoolPercent
;
481 extern ULONG MmLargeStackSize
;
482 extern PMMCOLOR_TABLES MmFreePagesByColor
[FreePageList
+ 1];
483 extern ULONG MmProductType
;
484 extern MM_SYSTEMSIZE MmSystemSize
;
485 extern PKEVENT MiLowMemoryEvent
;
486 extern PKEVENT MiHighMemoryEvent
;
487 extern PKEVENT MiLowPagedPoolEvent
;
488 extern PKEVENT MiHighPagedPoolEvent
;
489 extern PKEVENT MiLowNonPagedPoolEvent
;
490 extern PKEVENT MiHighNonPagedPoolEvent
;
491 extern PFN_NUMBER MmLowMemoryThreshold
;
492 extern PFN_NUMBER MmHighMemoryThreshold
;
493 extern PFN_NUMBER MiLowPagedPoolThreshold
;
494 extern PFN_NUMBER MiHighPagedPoolThreshold
;
495 extern PFN_NUMBER MiLowNonPagedPoolThreshold
;
496 extern PFN_NUMBER MiHighNonPagedPoolThreshold
;
497 extern PFN_NUMBER MmMinimumFreePages
;
498 extern PFN_NUMBER MmPlentyFreePages
;
499 extern PFN_NUMBER MiExpansionPoolPagesInitialCharge
;
500 extern PFN_NUMBER MmResidentAvailablePages
;
501 extern PFN_NUMBER MmResidentAvailableAtInit
;
502 extern ULONG MmTotalFreeSystemPtes
[MaximumPtePoolTypes
];
503 extern PFN_NUMBER MmTotalSystemDriverPages
;
504 extern PVOID MiSessionImageStart
;
505 extern PVOID MiSessionImageEnd
;
506 extern PMMPTE MiHighestUserPte
;
507 extern PMMPDE MiHighestUserPde
;
508 extern PFN_NUMBER MmSystemPageDirectory
[PD_COUNT
];
509 extern PMMPTE MmSharedUserDataPte
;
510 extern LIST_ENTRY MmProcessList
;
511 extern BOOLEAN MmZeroingPageThreadActive
;
512 extern KEVENT MmZeroingPageEvent
;
513 extern ULONG MmSystemPageColor
;
514 extern ULONG MmProcessColorSeed
;
517 // Figures out the hardware bits for a PTE
521 MiDetermineUserGlobalPteMask(IN PMMPTE PointerPte
)
528 /* Make it valid and accessed */
529 TempPte
.u
.Hard
.Valid
= TRUE
;
530 TempPte
.u
.Hard
.Accessed
= TRUE
;
532 /* Is this for user-mode? */
533 if ((PointerPte
<= MiHighestUserPte
) ||
534 ((PointerPte
>= MiAddressToPde(NULL
)) && (PointerPte
<= MiHighestUserPde
)))
536 /* Set the owner bit */
537 TempPte
.u
.Hard
.Owner
= TRUE
;
540 /* FIXME: We should also set the global bit */
542 /* Return the protection */
543 return TempPte
.u
.Long
;
547 // Creates a valid kernel PTE with the given protection
551 MI_MAKE_HARDWARE_PTE_KERNEL(IN PMMPTE NewPte
,
552 IN PMMPTE MappingPte
,
553 IN ULONG ProtectionMask
,
554 IN PFN_NUMBER PageFrameNumber
)
556 /* Only valid for kernel, non-session PTEs */
557 ASSERT(MappingPte
> MiHighestUserPte
);
558 ASSERT(!MI_IS_SESSION_PTE(MappingPte
));
559 ASSERT((MappingPte
< (PMMPTE
)PDE_BASE
) || (MappingPte
> (PMMPTE
)PDE_TOP
));
562 *NewPte
= ValidKernelPte
;
564 /* Set the protection and page */
565 NewPte
->u
.Hard
.PageFrameNumber
= PageFrameNumber
;
566 NewPte
->u
.Long
|= MmProtectToPteMask
[ProtectionMask
];
570 // Creates a valid PTE with the given protection
574 MI_MAKE_HARDWARE_PTE(IN PMMPTE NewPte
,
575 IN PMMPTE MappingPte
,
576 IN ULONG ProtectionMask
,
577 IN PFN_NUMBER PageFrameNumber
)
579 /* Set the protection and page */
580 NewPte
->u
.Long
= MiDetermineUserGlobalPteMask(MappingPte
);
581 NewPte
->u
.Long
|= MmProtectToPteMask
[ProtectionMask
];
582 NewPte
->u
.Hard
.PageFrameNumber
= PageFrameNumber
;
586 // Creates a valid user PTE with the given protection
590 MI_MAKE_HARDWARE_PTE_USER(IN PMMPTE NewPte
,
591 IN PMMPTE MappingPte
,
592 IN ULONG ProtectionMask
,
593 IN PFN_NUMBER PageFrameNumber
)
595 /* Only valid for kernel, non-session PTEs */
596 ASSERT(MappingPte
<= MiHighestUserPte
);
599 *NewPte
= ValidKernelPte
;
601 /* Set the protection and page */
602 NewPte
->u
.Hard
.Owner
= TRUE
;
603 NewPte
->u
.Hard
.PageFrameNumber
= PageFrameNumber
;
604 NewPte
->u
.Long
|= MmProtectToPteMask
[ProtectionMask
];
609 // Builds a Prototype PTE for the address of the PTE
613 MI_MAKE_PROTOTYPE_PTE(IN PMMPTE NewPte
,
614 IN PMMPTE PointerPte
)
618 /* Mark this as a prototype */
620 NewPte
->u
.Proto
.Prototype
= 1;
623 * Prototype PTEs are only valid in paged pool by design, this little trick
624 * lets us only use 28 bits for the adress of the PTE
626 Offset
= (ULONG_PTR
)PointerPte
- (ULONG_PTR
)MmPagedPoolStart
;
628 /* 7 bits go in the "low", and the other 21 bits go in the "high" */
629 NewPte
->u
.Proto
.ProtoAddressLow
= Offset
& 0x7F;
630 NewPte
->u
.Proto
.ProtoAddressHigh
= (Offset
& 0xFFFFFF80) >> 7;
631 ASSERT(MiProtoPteToPte(NewPte
) == PointerPte
);
636 // Returns if the page is physically resident (ie: a large page)
637 // FIXFIX: CISC/x86 only?
641 MI_IS_PHYSICAL_ADDRESS(IN PVOID Address
)
645 /* Large pages are never paged out, always physically resident */
646 PointerPde
= MiAddressToPde(Address
);
647 return ((PointerPde
->u
.Hard
.LargePage
) && (PointerPde
->u
.Hard
.Valid
));
651 // Writes a valid PTE
655 MI_WRITE_VALID_PTE(IN PMMPTE PointerPte
,
658 /* Write the valid PTE */
659 ASSERT(PointerPte
->u
.Hard
.Valid
== 0);
660 ASSERT(TempPte
.u
.Hard
.Valid
== 1);
661 *PointerPte
= TempPte
;
665 // Writes an invalid PTE
669 MI_WRITE_INVALID_PTE(IN PMMPTE PointerPte
,
672 /* Write the invalid PTE */
673 ASSERT(InvalidPte
.u
.Hard
.Valid
== 0);
674 *PointerPte
= InvalidPte
;
678 // Checks if the thread already owns a working set
682 MM_ANY_WS_LOCK_HELD(IN PETHREAD Thread
)
684 /* If any of these are held, return TRUE */
685 return ((Thread
->OwnsProcessWorkingSetExclusive
) ||
686 (Thread
->OwnsProcessWorkingSetShared
) ||
687 (Thread
->OwnsSystemWorkingSetExclusive
) ||
688 (Thread
->OwnsSystemWorkingSetShared
) ||
689 (Thread
->OwnsSessionWorkingSetExclusive
) ||
690 (Thread
->OwnsSessionWorkingSetShared
));
694 // Checks if the process owns the working set lock
698 MI_WS_OWNER(IN PEPROCESS Process
)
700 /* Check if this process is the owner, and that the thread owns the WS */
701 return ((KeGetCurrentThread()->ApcState
.Process
== &Process
->Pcb
) &&
702 ((PsGetCurrentThread()->OwnsProcessWorkingSetExclusive
) ||
703 (PsGetCurrentThread()->OwnsProcessWorkingSetShared
)));
707 // Locks the working set for the given process
711 MiLockProcessWorkingSet(IN PEPROCESS Process
,
714 /* Shouldn't already be owning the process working set */
715 ASSERT(Thread
->OwnsProcessWorkingSetShared
== FALSE
);
716 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
718 /* Block APCs, make sure that still nothing is already held */
719 KeEnterGuardedRegion();
720 ASSERT(!MM_ANY_WS_LOCK_HELD(Thread
));
722 /* FIXME: Actually lock it (we can't because Vm is used by MAREAs) */
724 /* FIXME: This also can't be checked because Vm is used by MAREAs) */
725 //ASSERT(Process->Vm.Flags.AcquiredUnsafe == 0);
727 /* Okay, now we can own it exclusively */
728 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== FALSE
);
729 Thread
->OwnsProcessWorkingSetExclusive
= TRUE
;
733 // Unlocks the working set for the given process
737 MiUnlockProcessWorkingSet(IN PEPROCESS Process
,
740 /* Make sure this process really is owner, and it was a safe acquisition */
741 ASSERT(MI_WS_OWNER(Process
));
742 /* This can't be checked because Vm is used by MAREAs) */
743 //ASSERT(Process->Vm.Flags.AcquiredUnsafe == 0);
745 /* The thread doesn't own it anymore */
746 ASSERT(Thread
->OwnsProcessWorkingSetExclusive
== TRUE
);
747 Thread
->OwnsProcessWorkingSetExclusive
= FALSE
;
749 /* FIXME: Actually release it (we can't because Vm is used by MAREAs) */
752 KeLeaveGuardedRegion();
756 // Locks the working set
760 MiLockWorkingSet(IN PETHREAD Thread
,
761 IN PMMSUPPORT WorkingSet
)
764 KeEnterGuardedRegion();
766 /* Working set should be in global memory */
767 ASSERT(MI_IS_SESSION_ADDRESS((PVOID
)WorkingSet
) == FALSE
);
769 /* Thread shouldn't already be owning something */
770 ASSERT(!MM_ANY_WS_LOCK_HELD(Thread
));
772 /* FIXME: Actually lock it (we can't because Vm is used by MAREAs) */
774 /* Which working set is this? */
775 if (WorkingSet
== &MmSystemCacheWs
)
777 /* Own the system working set */
778 ASSERT((Thread
->OwnsSystemWorkingSetExclusive
== FALSE
) &&
779 (Thread
->OwnsSystemWorkingSetShared
== FALSE
));
780 Thread
->OwnsSystemWorkingSetExclusive
= TRUE
;
782 else if (WorkingSet
->Flags
.SessionSpace
)
784 /* We don't implement this yet */
790 /* Own the process working set */
791 ASSERT((Thread
->OwnsProcessWorkingSetExclusive
== FALSE
) &&
792 (Thread
->OwnsProcessWorkingSetShared
== FALSE
));
793 Thread
->OwnsProcessWorkingSetExclusive
= TRUE
;
798 // Unlocks the working set
802 MiUnlockWorkingSet(IN PETHREAD Thread
,
803 IN PMMSUPPORT WorkingSet
)
805 /* Working set should be in global memory */
806 ASSERT(MI_IS_SESSION_ADDRESS((PVOID
)WorkingSet
) == FALSE
);
808 /* Which working set is this? */
809 if (WorkingSet
== &MmSystemCacheWs
)
811 /* Release the system working set */
812 ASSERT((Thread
->OwnsSystemWorkingSetExclusive
== TRUE
) ||
813 (Thread
->OwnsSystemWorkingSetShared
== TRUE
));
814 Thread
->OwnsSystemWorkingSetExclusive
= FALSE
;
816 else if (WorkingSet
->Flags
.SessionSpace
)
818 /* We don't implement this yet */
824 /* Release the process working set */
825 ASSERT((Thread
->OwnsProcessWorkingSetExclusive
) ||
826 (Thread
->OwnsProcessWorkingSetShared
));
827 Thread
->OwnsProcessWorkingSetExclusive
= FALSE
;
830 /* FIXME: Actually release it (we can't because Vm is used by MAREAs) */
833 KeLeaveGuardedRegion();
837 // Returns the ProtoPTE inside a VAD for the given VPN
841 MI_GET_PROTOTYPE_PTE_FOR_VPN(IN PMMVAD Vad
,
846 /* Find the offset within the VAD's prototype PTEs */
847 ProtoPte
= Vad
->FirstPrototypePte
+ (Vpn
- Vad
->StartingVpn
);
848 ASSERT(ProtoPte
<= Vad
->LastContiguousPte
);
856 IN PLOADER_PARAMETER_BLOCK LoaderBlock
861 MiInitMachineDependent(
862 IN PLOADER_PARAMETER_BLOCK LoaderBlock
867 MiComputeColorInformation(
874 IN PLOADER_PARAMETER_BLOCK LoaderBlock
879 MiInitializeColorTables(
885 MiInitializePfnDatabase(
886 IN PLOADER_PARAMETER_BLOCK LoaderBlock
891 MiInitializeMemoryEvents(
898 IN PFN_NUMBER PageCount
901 PPHYSICAL_MEMORY_DESCRIPTOR
903 MmInitializeMemoryLimits(
904 IN PLOADER_PARAMETER_BLOCK LoaderBlock
,
905 IN PBOOLEAN IncludeType
910 MiPagesInLoaderBlock(
911 IN PLOADER_PARAMETER_BLOCK LoaderBlock
,
912 IN PBOOLEAN IncludeType
918 IN PVOID AddressStart
,
925 IN BOOLEAN StoreInstruction
,
927 IN KPROCESSOR_MODE Mode
,
928 IN PVOID TrapInformation
933 MiCheckPdeForPagedPool(
939 MiInitializeNonPagedPool(
945 MiInitializeNonPagedPoolThresholds(
951 MiInitializePoolEvents(
958 IN POOL_TYPE PoolType
,// FIXFIX: This should go in ex.h after the pool merge
959 IN ULONG Threshold
//
964 MiInitializeSystemPtes(
965 IN PMMPTE StartingPte
,
966 IN ULONG NumberOfPtes
,
967 IN MMSYSTEM_PTE_POOL_TYPE PoolType
973 IN ULONG NumberOfPtes
,
974 IN MMSYSTEM_PTE_POOL_TYPE SystemPtePoolType
980 IN PMMPTE StartingPte
,
981 IN ULONG NumberOfPtes
,
982 IN MMSYSTEM_PTE_POOL_TYPE SystemPtePoolType
988 MiFindContiguousPages(
989 IN PFN_NUMBER LowestPfn
,
990 IN PFN_NUMBER HighestPfn
,
991 IN PFN_NUMBER BoundaryPfn
,
992 IN PFN_NUMBER SizeInPages
,
993 IN MEMORY_CACHING_TYPE CacheType
998 MiCheckForContiguousMemory(
999 IN PVOID BaseAddress
,
1000 IN PFN_NUMBER BaseAddressPages
,
1001 IN PFN_NUMBER SizeInPages
,
1002 IN PFN_NUMBER LowestPfn
,
1003 IN PFN_NUMBER HighestPfn
,
1004 IN PFN_NUMBER BoundaryPfn
,
1005 IN MI_PFN_CACHE_ATTRIBUTE CacheAttribute
1010 MiAllocatePagesForMdl(
1011 IN PHYSICAL_ADDRESS LowAddress
,
1012 IN PHYSICAL_ADDRESS HighAddress
,
1013 IN PHYSICAL_ADDRESS SkipBytes
,
1014 IN SIZE_T TotalBytes
,
1015 IN MI_PFN_CACHE_ATTRIBUTE CacheAttribute
,
1021 MiMapLockedPagesInUserSpace(
1024 IN MEMORY_CACHING_TYPE CacheType
,
1025 IN PVOID BaseAddress
1030 MiUnmapLockedPagesInUserSpace(
1031 IN PVOID BaseAddress
,
1038 IN PMMPFNLIST ListHead
,
1039 IN PFN_NUMBER PageFrameIndex
1044 MiUnlinkFreeOrZeroedPage(
1051 IN PMMPTE PointerPte
,
1058 IN PFN_NUMBER PageFrameIndex
,
1059 IN PMMPTE PointerPte
,
1065 MiInitializePfnForOtherProcess(
1066 IN PFN_NUMBER PageFrameIndex
,
1067 IN PMMPTE PointerPte
,
1068 IN PFN_NUMBER PteFrame
1073 MiDecrementShareCount(
1075 IN PFN_NUMBER PageFrameIndex
1080 MiDecrementReferenceCount(
1082 IN PFN_NUMBER PageFrameIndex
1100 IN PFN_NUMBER PageFrameIndex
1105 MiInsertPageInFreeList(
1106 IN PFN_NUMBER PageFrameIndex
1111 MiDeleteSystemPageableVm(
1112 IN PMMPTE PointerPte
,
1113 IN PFN_NUMBER PageCount
,
1115 OUT PPFN_NUMBER ValidPages
1118 PLDR_DATA_TABLE_ENTRY
1120 MiLookupDataTableEntry(
1126 MiInitializeDriverLargePageList(
1132 MiInitializeLargePageSupport(
1151 IN PVOID VirtualAddress
1156 MiCheckForConflictingNode(
1157 IN ULONG_PTR StartVpn
,
1158 IN ULONG_PTR EndVpn
,
1159 IN PMM_AVL_TABLE Table
1164 MiFindEmptyAddressRangeDownTree(
1166 IN ULONG_PTR BoundaryAddress
,
1167 IN ULONG_PTR Alignment
,
1168 IN PMM_AVL_TABLE Table
,
1169 OUT PULONG_PTR Base
,
1170 OUT PMMADDRESS_NODE
*Parent
1175 MiFindEmptyAddressRangeInTree(
1177 IN ULONG_PTR Alignment
,
1178 IN PMM_AVL_TABLE Table
,
1179 OUT PMMADDRESS_NODE
*PreviousVad
,
1187 IN PEPROCESS Process
1193 IN PMM_AVL_TABLE Table
,
1194 IN PMMADDRESS_NODE NewNode
,
1195 PMMADDRESS_NODE Parent
,
1196 TABLE_SEARCH_RESULT Result
1202 IN PMMADDRESS_NODE Node
,
1203 IN PMM_AVL_TABLE Table
1209 IN PMMADDRESS_NODE Node
1215 IN PMMADDRESS_NODE Node
1220 MiInitializeSystemSpaceMap(
1221 IN PVOID InputSession OPTIONAL
1226 MiMakeProtectionMask(
1232 MiDeleteVirtualAddresses(
1234 IN ULONG_PTR EndingAddress
,
1240 MiMakeSystemAddressValid(
1241 IN PVOID PageTableVirtualAddress
,
1242 IN PEPROCESS CurrentProcess
1247 MiMakeSystemAddressValidPfn(
1248 IN PVOID VirtualAddress
,
1255 IN PEPROCESS CurrentProcess
,
1267 // MiRemoveZeroPage will use inline code to zero out the page manually if only
1268 // free pages are available. In some scenarios, we don't/can't run that piece of
1269 // code and would rather only have a real zero page. If we can't have a zero page,
1270 // then we'd like to have our own code to grab a free page and zero it out, by
1271 // using MiRemoveAnyPage. This macro implements this.
1275 MiRemoveZeroPageSafe(IN ULONG Color
)
1277 if (MmFreePagesByColor
[ZeroedPageList
][Color
].Flink
!= LIST_HEAD
) return MiRemoveZeroPage(Color
);
1282 // New ARM3<->RosMM PAGE Architecture
1284 #define MI_GET_ROS_DATA(x) ((PMMROSPFN)(x->RosMmData))
1285 #define MI_IS_ROS_PFN(x) (((x)->u4.AweAllocation == TRUE) && (MI_GET_ROS_DATA(x) != NULL))
1286 #define ASSERT_IS_ROS_PFN(x) ASSERT(MI_IS_ROS_PFN(x) == TRUE);
1287 typedef struct _MMROSPFN
1289 PMM_RMAP_ENTRY RmapListHead
;
1290 SWAPENTRY SwapEntry
;
1291 } MMROSPFN
, *PMMROSPFN
;
1293 #define RosMmData AweReferenceCount