Refactor MMU for multi-paging support and add 5-Level paging #16
@ -28,7 +28,11 @@
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#define MM_PDI_SHIFT 21
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#define MM_PPI_SHIFT 30
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/* Page directory and page base legacy address */
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#define MM_PDE_LEGACY_BASE 0xC0300000
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/* PTE legacy shift values */
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#define MM_PTE_LEGACY_SHIFT 2
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#define MM_PDI_LEGACY_SHIFT 22
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/* Minimum number of physical pages needed by the system */
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@ -58,8 +62,26 @@ typedef enum _PAGE_SIZE
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Size4M
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} PAGE_SIZE, *PPAGE_SIZE;
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/* Page Table entry structure definition (with PAE support) */
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typedef struct _HARDWARE_PTE
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/* Legacy Page Table entry structure definition (PML2) */
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typedef struct _HARDWARE_LEGACY_PTE
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{
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ULONG Valid:1;
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ULONG Writable:1;
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ULONG Owner:1;
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ULONG WriteThrough:1;
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ULONG CacheDisable:1;
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ULONG Accessed:1;
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ULONG Dirty:1;
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ULONG LargePage:1;
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ULONG Global:1;
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ULONG CopyOnWrite:1;
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ULONG Prototype:1;
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ULONG Reserved0:1;
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ULONG PageFrameNumber:20;
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} HARDWARE_LEGACY_PTE, *PHARDWARE_LEGACY_PTE;
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/* Page Table entry structure definition (PML3) */
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typedef struct _HARDWARE_MODERN_PTE
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{
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ULONGLONG Valid:1;
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ULONGLONG Writable:1;
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@ -77,10 +99,116 @@ typedef struct _HARDWARE_PTE
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ULONGLONG Reserved1:14;
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ULONGLONG SoftwareWsIndex:11;
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ULONGLONG NoExecute:1;
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} HARDWARE_MODERN_PTE, *PHARDWARE_MODERN_PTE;
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/* Generic Page Table entry union to abstract PML2 and PML3 formats */
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typedef union _HARDWARE_PTE
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{
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ULONGLONG Long;
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HARDWARE_LEGACY_PTE Pml2;
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HARDWARE_MODERN_PTE Pml3;
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} HARDWARE_PTE, *PHARDWARE_PTE;
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/* Page Table Entry on PAE enabled system */
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typedef struct _MMPTE_HARDWARE
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/* Page map information structure definition */
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typedef struct _MMPAGEMAP_INFO
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{
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BOOLEAN Xpa;
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ULONG PdeBase;
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ULONG PdiShift;
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ULONG PteShift;
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} MMPAGEMAP_INFO, *PMMPAGEMAP_INFO;
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/* Legacy Page Table Entry hardware structure definition (PML2) */
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typedef struct _MMPML2_PTE_HARDWARE
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{
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ULONG Valid:1;
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ULONG Writable:1;
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ULONG Owner:1;
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ULONG WriteThrough:1;
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ULONG CacheDisable:1;
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ULONG Accessed:1;
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ULONG Dirty:1;
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ULONG LargePage:1;
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ULONG Global:1;
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ULONG CopyOnWrite:1;
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ULONG Prototype:1;
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ULONG Write:1;
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ULONG PageFrameNumber:20;
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} MMPML2_PTE_HARDWARE, *PMMPML2_PTE_HARDWARE;
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/* Legacy Page Table Entry list structure definition (PML2) */
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typedef struct _MMPML2_PTE_LIST
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{
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ULONG Valid:1;
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ULONG OneEntry:1;
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ULONG Reserved0:8;
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ULONG Prototype:1;
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ULONG Reserved1:1;
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ULONG NextEntry:20;
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} MMPML2_PTE_LIST, *PMMPML2_PTE_LIST;
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/* Legacy Page Table Entry subsection structure definition (PML2) */
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typedef struct _MMPML2_PTE_PROTOTYPE
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{
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ULONG Valid:1;
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ULONG ProtoAddressLow:7;
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ULONG ReadOnly:1;
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ULONG WhichPool:1;
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ULONG Prototype:1;
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ULONG ProtoAddressHigh:21;
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} MMPML2_PTE_PROTOTYPE, *PMMPML2_PTE_PROTOTYPE;
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/* Legacy Page Table Entry software structure definition (PML2) */
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typedef struct _MMPML2_PTE_SOFTWARE
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{
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ULONG Valid:1;
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ULONG PageFileLow:4;
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ULONG Protection:5;
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ULONG Prototype:1;
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ULONG Transition:1;
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ULONG PageFileHigh:20;
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} MMPML2_PTE_SOFTWARE, *PMMPML2_PTE_SOFTWARE;
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/* Legacy Page Table Entry subsection structure definition (PML2) */
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typedef struct _MMPML2_PTE_SUBSECTION
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{
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ULONG Valid:1;
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ULONG SubsectionAddressLow:4;
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ULONG Protection:5;
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ULONG Prototype:1;
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ULONG SubsectionAddressHigh:20;
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ULONG WhichPool:1;
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} MMPML2_PTE_SUBSECTION, *PMMPML2_PTE_SUBSECTION;
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/* Legacy Page Table Entry transition structure definition (PML2) */
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typedef struct _MMPML2_PTE_TRANSITION
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{
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ULONG Valid:1;
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ULONG Write:1;
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ULONG Owner:1;
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ULONG WriteThrough:1;
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ULONG CacheDisable:1;
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ULONG Protection:5;
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ULONG Prototype:1;
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ULONG Transition:1;
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ULONG PageFrameNumber:20;
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} MMPML2_PTE_TRANSITION, *PMMPML2_PTE_TRANSITION;
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/* Legacy Page Table Entry union definition (PML2) */
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typedef union _MMPML2_PTE
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{
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ULONG Long;
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HARDWARE_PTE Flush;
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MMPML2_PTE_HARDWARE Hard;
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MMPML2_PTE_PROTOTYPE Proto;
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MMPML2_PTE_SOFTWARE Soft;
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MMPML2_PTE_TRANSITION Trans;
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MMPML2_PTE_SUBSECTION Subsect;
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MMPML2_PTE_LIST List;
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} MMPML2_PTE, *PMMPML2_PTE;
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/* Page Table Entry hardware structure definition (PML3) */
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typedef struct _MMPML3_PTE_HARDWARE
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{
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ULONGLONG Valid:1;
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ULONGLONG Writable:1;
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@ -95,59 +223,59 @@ typedef struct _MMPTE_HARDWARE
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ULONGLONG Prototype:1;
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ULONGLONG Write:1;
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ULONGLONG PageFrameNumber:26;
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ULONGLONG Reserved1:25;
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ULONGLONG Reserved0:25;
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ULONGLONG NoExecute:1;
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} MMPTE_HARDWARE, *PMMPTE_HARDWARE;
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} MMPML3_PTE_HARDWARE, *PMMPML3_PTE_HARDWARE;
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/* Page Table Entry list structure definition (with PAE support) */
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typedef struct _MMPTE_LIST
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/* Page Table Entry list structure definition (PML3) */
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typedef struct _MMPML3_PTE_LIST
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{
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ULONGLONG Valid:1;
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ULONGLONG OneEntry:1;
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ULONGLONG Reserved1:8;
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ULONGLONG Reserved0:8;
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ULONGLONG Prototype:1;
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ULONGLONG Reserved2:21;
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ULONGLONG Reserved1:21;
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ULONGLONG NextEntry:32;
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} MMPTE_LIST, *PMMPTE_LIST;
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} MMPML3_PTE_LIST, *PMMPML3_PTE_LIST;
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/* Page Table Entry subsection structure definition (with PAE support) */
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typedef struct _MMPTE_PROTOTYPE
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/* Page Table Entry subsection structure definition (PML3) */
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typedef struct _MMPML3_PTE_PROTOTYPE
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{
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ULONGLONG Valid:1;
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ULONGLONG Reserved1:7;
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ULONGLONG Reserved0:7;
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ULONGLONG ReadOnly:1;
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||||
ULONGLONG Reserved2:1;
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||||
ULONGLONG Reserved1:1;
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ULONGLONG Prototype:1;
|
||||
ULONGLONG Protection:5;
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||||
ULONGLONG Reserved3:16;
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||||
ULONGLONG Reserved2:16;
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||||
ULONGLONG ProtoAddress:32;
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||||
} MMPTE_PROTOTYPE, *PMMPTE_PROTOTYPE;
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} MMPML3_PTE_PROTOTYPE, *PMMPML3_PTE_PROTOTYPE;
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/* Page Table Entry software structure definition (with PAE support) */
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||||
typedef struct _MMPTE_SOFTWARE
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/* Page Table Entry software structure definition (PML3) */
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typedef struct _MMPML3_PTE_SOFTWARE
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{
|
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ULONGLONG Valid:1;
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||||
ULONGLONG PageFileLow:4;
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ULONGLONG Protection:5;
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||||
ULONGLONG Prototype:1;
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||||
ULONGLONG Transition:1;
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||||
ULONGLONG Reserved1:20;
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ULONGLONG Reserved0:20;
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ULONGLONG PageFileHigh:32;
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} MMPTE_SOFTWARE, *PMMPTE_SOFTWARE;
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} MMPML3_PTE_SOFTWARE, *PMMPML3_PTE_SOFTWARE;
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/* Page Table Entry subsection structure definition (with PAE support) */
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||||
typedef struct _MMPTE_SUBSECTION
|
||||
/* Page Table Entry subsection structure definition (PML3) */
|
||||
typedef struct _MMPML3_PTE_SUBSECTION
|
||||
{
|
||||
ULONGLONG Valid:1;
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||||
ULONGLONG Reserved1:4;
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||||
ULONGLONG Reserved0:4;
|
||||
ULONGLONG Protection:5;
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||||
ULONGLONG Prototype:1;
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||||
ULONGLONG Reserved2:21;
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ULONGLONG Reserved1:21;
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||||
ULONGLONG SubsectionAddress:32;
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} MMPTE_SUBSECTION, *PMMPTE_SUBSECTION;
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} MMPML3_PTE_SUBSECTION, *PMMPML3_PTE_SUBSECTION;
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||||
|
||||
/* Page Table Entry transition structure definition (with PAE support) */
|
||||
typedef struct _MMPTE_TRANSITION
|
||||
/* Page Table Entry transition structure definition (PML3) */
|
||||
typedef struct _MMPML3_PTE_TRANSITION
|
||||
{
|
||||
ULONGLONG Valid:1;
|
||||
ULONGLONG Write:1;
|
||||
@ -159,38 +287,28 @@ typedef struct _MMPTE_TRANSITION
|
||||
ULONGLONG Transition:1;
|
||||
ULONGLONG PageFrameNumber:26;
|
||||
ULONGLONG Unused:26;
|
||||
} MMPTE_TRANSITION, *PMMPTE_TRANSITION;
|
||||
} MMPML3_PTE_TRANSITION, *PMMPML3_PTE_TRANSITION;
|
||||
|
||||
/* Page Table Entry structure definition (with PAE support) */
|
||||
typedef union _MMPTE
|
||||
/* Page Table Entry union definition (PML3) */
|
||||
typedef union _MMPML3_PTE
|
||||
{
|
||||
ULONGLONG Long;
|
||||
HARDWARE_PTE Flush;
|
||||
MMPTE_HARDWARE Hardware;
|
||||
MMPTE_PROTOTYPE Prototype;
|
||||
MMPTE_SOFTWARE Software;
|
||||
MMPTE_TRANSITION Transition;
|
||||
MMPTE_SUBSECTION Subsection;
|
||||
MMPTE_LIST List;
|
||||
} MMPTE, *PMMPTE;
|
||||
MMPML3_PTE_HARDWARE Hardware;
|
||||
MMPML3_PTE_PROTOTYPE Prototype;
|
||||
MMPML3_PTE_SOFTWARE Software;
|
||||
MMPML3_PTE_TRANSITION Transition;
|
||||
MMPML3_PTE_SUBSECTION Subsection;
|
||||
MMPML3_PTE_LIST List;
|
||||
} MMPML3_PTE, *PMMPML3_PTE;
|
||||
|
||||
/* Legacy Page Table entry structure definition (without PAE support) */
|
||||
typedef struct _HARDWARE_LEGACY_PTE
|
||||
/* Generic Page Table Entry union to abstract PML2 and PML3 formats */
|
||||
typedef union _MMPTE
|
||||
{
|
||||
ULONG Valid:1;
|
||||
ULONG Writable:1;
|
||||
ULONG Owner:1;
|
||||
ULONG WriteThrough:1;
|
||||
ULONG CacheDisable:1;
|
||||
ULONG Accessed:1;
|
||||
ULONG Dirty:1;
|
||||
ULONG LargePage:1;
|
||||
ULONG Global:1;
|
||||
ULONG CopyOnWrite:1;
|
||||
ULONG Prototype:1;
|
||||
ULONG Reserved0:1;
|
||||
ULONG PageFrameNumber:20;
|
||||
} HARDWARE_LEGACY_PTE, *PHARDWARE_LEGACY_PTE;
|
||||
ULONGLONG Long;
|
||||
MMPML2_PTE Pml2;
|
||||
MMPML3_PTE Pml3;
|
||||
} MMPTE, *PMMPTE;
|
||||
|
||||
/* Page Frame Number structure definition */
|
||||
typedef struct _MMPFN
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user