2 * kernel internal memory managment definitions for amd64
6 /* Memory layout base addresses */
7 #define MI_LOWEST_VAD_ADDRESS (PVOID)0x000000007FF00000ULL
8 #define MI_HIGHEST_USER_ADDRESS (PVOID)0x000007FFFFFEFFFFULL
9 #define MI_USER_PROBE_ADDRESS (PVOID)0x000007FFFFFF0000ULL
10 #define MI_DEFAULT_SYSTEM_RANGE_START (PVOID)0xFFFF080000000000ULL
11 #define MI_REAL_SYSTEM_RANGE_START 0xFFFF800000000000ULL
12 #define MI_PAGE_TABLE_BASE 0xFFFFF68000000000ULL
13 #define HYPER_SPACE 0xFFFFF70000000000ULL
14 #define HYPER_SPACE_END 0xFFFFF77FFFFFFFFFULL
15 #define MI_SHARED_SYSTEM_PAGE 0xFFFFF78000000000ULL
16 #define MI_SYSTEM_CACHE_WS_START 0xFFFFF78000001000ULL
17 #define MI_LOADER_MAPPINGS 0xFFFFF80000000000ULL
18 #define MI_PAGED_SYSTEM_START 0xFFFFF88000000000ULL
19 #define MI_PAGED_POOL_START (PVOID)0xFFFFF8A000000000ULL
20 #define MI_PAGED_POOL_END 0xFFFFF8BFFFFFFFFFULL
21 #define MI_SESSION_SPACE_START 0xFFFFF90000000000ULL
22 #define MI_SESSION_VIEW_END 0xFFFFF97FFF000000ULL
23 #define MI_SESSION_SPACE_END 0xFFFFF97FFFFFFFFFULL
24 #define MM_SYSTEM_SPACE_START 0xFFFFF98000000000ULL
25 #define MI_PFN_DATABASE 0xFFFFFA8000000000ULL
26 #define MI_HIGHEST_SYSTEM_ADDRESS (PVOID)0xFFFFFFFFFFFFFFFFULL
28 /* WOW64 address definitions */
29 #define MM_HIGHEST_USER_ADDRESS_WOW64 0x7FFEFFFF
30 #define MM_SYSTEM_RANGE_START_WOW64 0x80000000
32 #define MI_DEBUG_MAPPING (PVOID)0xFFFFFFFF80000000ULL // FIXME
33 #define MI_NON_PAGED_SYSTEM_START_MIN MM_SYSTEM_SPACE_START // FIXME
34 #define MI_SYSTEM_PTE_START MM_SYSTEM_SPACE_START
35 #define MI_SYSTEM_PTE_END (MI_SYSTEM_PTE_START + MI_NUMBER_SYSTEM_PTES * PAGE_SIZE - 1)
36 #define MI_SYSTEM_PTE_BASE (PVOID)MiAddressToPte(KSEG0_BASE)
37 #define MM_HIGHEST_VAD_ADDRESS (PVOID)((ULONG_PTR)MM_HIGHEST_USER_ADDRESS - (16 * PAGE_SIZE))
38 #define MI_MAPPING_RANGE_START HYPER_SPACE
39 #define MI_MAPPING_RANGE_END (MI_MAPPING_RANGE_START + MI_HYPERSPACE_PTES * PAGE_SIZE)
40 #define MI_DUMMY_PTE (MI_MAPPING_RANGE_END + PAGE_SIZE)
41 #define MI_VAD_BITMAP (MI_DUMMY_PTE + PAGE_SIZE)
42 #define MI_WORKING_SET_LIST (MI_VAD_BITMAP + PAGE_SIZE)
43 #define MI_NONPAGED_POOL_END 0
46 #define MI_MIN_PAGES_FOR_NONPAGED_POOL_TUNING ((255*1024*1024) >> PAGE_SHIFT)
47 #define MI_MIN_PAGES_FOR_SYSPTE_TUNING ((19*1024*1024) >> PAGE_SHIFT)
48 #define MI_MIN_PAGES_FOR_SYSPTE_BOOST ((32*1024*1024) >> PAGE_SHIFT)
49 #define MI_MIN_PAGES_FOR_SYSPTE_BOOST_BOOST ((256*1024*1024) >> PAGE_SHIFT)
50 #define MI_MIN_INIT_PAGED_POOLSIZE (32 * 1024 * 1024)
51 #define MI_MAX_INIT_NONPAGED_POOL_SIZE (128ULL * 1024 * 1024 * 1024)
52 #define MI_MAX_NONPAGED_POOL_SIZE (128ULL * 1024 * 1024 * 1024)
53 #define MI_SYSTEM_VIEW_SIZE (16 * 1024 * 1024)
54 #define MI_MIN_SECONDARY_COLORS 8
55 #define MI_SECONDARY_COLORS 64
56 #define MI_MAX_SECONDARY_COLORS 1024
57 #define MI_MIN_ALLOCATION_FRAGMENT (4 * _1KB)
58 #define MI_ALLOCATION_FRAGMENT (64 * _1KB)
59 #define MI_MAX_ALLOCATION_FRAGMENT (2 * _1MB)
60 #define MI_SESSION_WORKING_SET_SIZE (4 * 1024 * 1024)
61 #define MI_SESSION_VIEW_SIZE (20 * 1024 * 1024)
62 #define MI_SESSION_POOL_SIZE (16 * 1024 * 1024)
63 #define MI_SESSION_IMAGE_SIZE (8 * 1024 * 1024)
64 #define MI_SESSION_SIZE (MI_SESSION_VIEW_SIZE + \
65 MI_SESSION_POOL_SIZE + \
66 MI_SESSION_IMAGE_SIZE + \
67 MI_SESSION_WORKING_SET_SIZE)
69 #define MmSystemRangeStart ((PVOID)MI_REAL_SYSTEM_RANGE_START)
72 #define _MI_PAGING_LEVELS 4
73 #define MI_NUMBER_SYSTEM_PTES 22000
74 #define MI_MAX_FREE_PAGE_LISTS 4
75 #define NR_SECTION_PAGE_TABLES 1024
76 #define NR_SECTION_PAGE_ENTRIES 1024
77 #define MI_HYPERSPACE_PTES (256 - 1)
78 #define MI_ZERO_PTES (32)
79 /* FIXME - different architectures have different cache line sizes... */
80 #define MM_CACHE_LINE_SIZE 32
81 #define MI_MAX_ZERO_BITS 53
84 #define PAGE_MASK(x) ((x)&(~0xfff))
85 #define PAE_PAGE_MASK(x) ((x)&(~0xfffLL))
86 #define IS_ALIGNED(addr, align) (((ULONG64)(addr) & (align - 1)) == 0)
87 #define IS_PAGE_ALIGNED(addr) IS_ALIGNED(addr, PAGE_SIZE)
89 #define MiIsPteOnPdeBoundary(PointerPte) \
90 ((((ULONG_PTR)PointerPte) & (PAGE_SIZE - 1)) == 0)
91 #define MiIsPteOnPpeBoundary(PointerPte) \
92 ((((ULONG_PTR)PointerPte) & (PDE_PER_PAGE * PAGE_SIZE - 1)) == 0)
93 #define MiIsPteOnPxeBoundary(PointerPte) \
94 ((((ULONG_PTR)PointerPte) & (PPE_PER_PAGE * PDE_PER_PAGE * PAGE_SIZE - 1)) == 0)
96 /* MMPTE related defines */
97 #define MM_EMPTY_PTE_LIST ((ULONG64)0xFFFFFFFF)
98 #define MM_EMPTY_LIST ((ULONG_PTR)-1)
100 #define ADDR_TO_PAGE_TABLE(v) ((ULONG)(((ULONG_PTR)(v)) / (512 * PAGE_SIZE)))
101 #define ADDR_TO_PDE_OFFSET(v) ((ULONG)((((ULONG_PTR)(v)) / (512 * PAGE_SIZE))))
102 #define ADDR_TO_PTE_OFFSET(v) ((ULONG)((((ULONG_PTR)(v)) % (512 * PAGE_SIZE)) / PAGE_SIZE))
104 #define MiGetPdeOffset ADDR_TO_PDE_OFFSET
106 #define VAtoPXI(va) ((((ULONG64)va) >> PXI_SHIFT) & 0x1FF)
107 #define VAtoPPI(va) ((((ULONG64)va) >> PPI_SHIFT) & 0x1FF)
108 #define VAtoPDI(va) ((((ULONG64)va) >> PDI_SHIFT) & 0x1FF)
109 #define VAtoPTI(va) ((((ULONG64)va) >> PTI_SHIFT) & 0x1FF)
111 /* Easy accessing PFN in PTE */
112 #define PFN_FROM_PTE(v) ((v)->u.Hard.PageFrameNumber)
113 #define PFN_FROM_PDE(v) ((v)->u.Hard.PageFrameNumber)
114 #define PFN_FROM_PPE(v) ((v)->u.Hard.PageFrameNumber)
115 #define PFN_FROM_PXE(v) ((v)->u.Hard.PageFrameNumber)
117 // FIXME, only copied from x86
118 #define MI_MAKE_LOCAL_PAGE(x) ((x)->u.Hard.Global = 0)
119 #define MI_MAKE_DIRTY_PAGE(x) ((x)->u.Hard.Dirty = 1)
120 #define MI_MAKE_ACCESSED_PAGE(x) ((x)->u.Hard.Accessed = 1)
121 #define MI_PAGE_DISABLE_CACHE(x) ((x)->u.Hard.CacheDisable = 1)
122 #define MI_PAGE_WRITE_THROUGH(x) ((x)->u.Hard.WriteThrough = 1)
123 #define MI_PAGE_WRITE_COMBINED(x) ((x)->u.Hard.WriteThrough = 0)
124 #define MI_IS_PAGE_LARGE(x) ((x)->u.Hard.LargePage == 1)
125 #if !defined(CONFIG_SMP)
126 #define MI_IS_PAGE_WRITEABLE(x) ((x)->u.Hard.Write == 1)
128 #define MI_IS_PAGE_WRITEABLE(x) ((x)->u.Hard.Writable == 1)
130 #define MI_IS_PAGE_COPY_ON_WRITE(x)((x)->u.Hard.CopyOnWrite == 1)
131 #define MI_IS_PAGE_DIRTY(x) ((x)->u.Hard.Dirty == 1)
132 #define MI_MAKE_OWNER_PAGE(x) ((x)->u.Hard.Owner = 1)
133 #if !defined(CONFIG_SMP)
134 #define MI_MAKE_WRITE_PAGE(x) ((x)->u.Hard.Write = 1)
136 #define MI_MAKE_WRITE_PAGE(x) ((x)->u.Hard.Writable = 1)
140 #define PAGE_TO_SECTION_PAGE_DIRECTORY_OFFSET(x) \
141 ((x) / (4*1024*1024))
142 #define PAGE_TO_SECTION_PAGE_TABLE_OFFSET(x) \
143 ((((x)) % (4*1024*1024)) / (4*1024))
145 //#define TEB_BASE 0x7FFDE000
147 /* On x64, these are the same */
149 #define PMMPDE PMMPTE
151 #define PMMPPE PMMPTE
153 #define PMMPXE PMMPTE
154 #define MI_WRITE_VALID_PPE MI_WRITE_VALID_PTE
156 #define ValidKernelPpe ValidKernelPde
160 MmGetPageDirectory(VOID
)
162 return (PULONG64
)__readcr3();
167 MiAddressToPxe(PVOID Address
)
169 ULONG64 Offset
= (ULONG64
)Address
>> (PXI_SHIFT
- 3);
170 Offset
&= PXI_MASK
<< 3;
171 return (PMMPTE
)(PXE_BASE
+ Offset
);
176 MiAddressToPpe(PVOID Address
)
178 ULONG64 Offset
= (ULONG64
)Address
>> (PPI_SHIFT
- 3);
179 Offset
&= 0x3FFFF << 3;
180 return (PMMPTE
)(PPE_BASE
+ Offset
);
185 _MiAddressToPde(PVOID Address
)
187 ULONG64 Offset
= (ULONG64
)Address
>> (PDI_SHIFT
- 3);
188 Offset
&= 0x7FFFFFF << 3;
189 return (PMMPTE
)(PDE_BASE
+ Offset
);
191 #define MiAddressToPde(x) _MiAddressToPde((PVOID)(x))
195 _MiAddressToPte(PVOID Address
)
197 ULONG64 Offset
= (ULONG64
)Address
>> (PTI_SHIFT
- 3);
198 Offset
&= 0xFFFFFFFFFULL
<< 3;
199 return (PMMPTE
)(PTE_BASE
+ Offset
);
201 #define MiAddressToPte(x) _MiAddressToPte((PVOID)(x))
205 MiAddressToPti(PVOID Address
)
207 return ((((ULONG64
)Address
) >> PTI_SHIFT
) & 0x1FF);
209 #define MiAddressToPteOffset(x) MiAddressToPti(x) // FIXME: bad name
213 MiAddressToPxi(PVOID Address
)
215 return ((((ULONG64
)Address
) >> PXI_SHIFT
) & 0x1FF);
219 /* Convert a PTE into a corresponding address */
222 MiPteToAddress(PMMPTE PointerPte
)
224 /* Use signed math */
225 return (PVOID
)(((LONG64
)PointerPte
<< 25) >> 16);
230 MiPdeToAddress(PMMPTE PointerPde
)
232 /* Use signed math */
233 return (PVOID
)(((LONG64
)PointerPde
<< 34) >> 16);
238 MiPpeToAddress(PMMPTE PointerPpe
)
240 /* Use signed math */
241 return (PVOID
)(((LONG64
)PointerPpe
<< 43) >> 16);
246 MiPxeToAddress(PMMPTE PointerPxe
)
248 /* Use signed math */
249 return (PVOID
)(((LONG64
)PointerPxe
<< 52) >> 16);
254 MiIsPdeForAddressValid(PVOID Address
)
256 return ((MiAddressToPxe(Address
)->u
.Hard
.Valid
) &&
257 (MiAddressToPpe(Address
)->u
.Hard
.Valid
) &&
258 (MiAddressToPde(Address
)->u
.Hard
.Valid
));
261 #define MiPdeToPte(PDE) ((PMMPTE)MiPteToAddress(PDE))
262 #define MiPteToPde(PTE) ((PMMPDE)MiAddressToPte(PTE))
263 #define MiPdeToPpe(Pde) ((PMMPPE)MiAddressToPte(Pde))
265 /* Sign extend 48 bits */
266 #define MiProtoPteToPte(x) (PMMPTE)(((LONG64)(x)->u.Long) >> 16)
269 // Decodes a Prototype PTE into the underlying PTE
271 #define MiSubsectionPteToSubsection(x) \
272 (PMMPTE)((x)->u.Subsect.SubsectionAddress >> 16)
276 MI_MAKE_SUBSECTION_PTE(IN PMMPTE NewPte
,
284 MI_MAKE_PROTOTYPE_PTE(IN PMMPTE NewPte
,
285 IN PMMPTE PointerPte
)
287 /* Store the Address */
288 NewPte
->u
.Long
= (ULONG64
)PointerPte
<< 16;
290 /* Mark this as a prototype PTE */
291 NewPte
->u
.Proto
.Prototype
= 1;
293 ASSERT(MiProtoPteToPte(NewPte
) == PointerPte
);
298 MI_IS_MAPPED_PTE(PMMPTE PointerPte
)
302 return ((PointerPte
->u
.Long
& 0xFFFFFC01) != 0);
307 MmInitGlobalKernelPageDirectory(VOID
)