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[NTOS:MM]
- Simplify MiInitSystemMemoryAreas by introducing a helper, MiCreateArm3StaticMemoryArea. Patch by Mike Nordell svn path=/trunk/; revision=68421
This commit is contained in:
Thomas Faber
parent
88fed9bfce
commit
e39f524e17
1 changed files with 56 additions and 171 deletions
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@ -38,198 +38,83 @@ extern NTSTATUS MiRosTrimCache(ULONG Target, ULONG Priority, PULONG NrFreed);
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/* PRIVATE FUNCTIONS *********************************************************/
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//
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// Helper function to create initial memory areas.
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// The created area is always read/write.
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//
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VOID
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INIT_FUNCTION
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NTAPI
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MiCreateArm3StaticMemoryArea(PVOID BaseAddress, ULONG Size, BOOLEAN Executable)
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{
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const ULONG Protection = Executable ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE;
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PVOID pBaseAddress = BaseAddress;
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PMEMORY_AREA MArea;
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NTSTATUS Status;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&pBaseAddress,
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Size,
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Protection,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// TODO: Perhaps it would be prudent to bugcheck here, not only assert?
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}
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VOID
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INIT_FUNCTION
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NTAPI
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MiInitSystemMemoryAreas()
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{
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PVOID BaseAddress;
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PMEMORY_AREA MArea;
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NTSTATUS Status;
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//
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// Create all the static memory areas.
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//
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//
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// Create the memory area to define the loader mappings
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//
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BaseAddress = (PVOID)KSEG0_BASE;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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MmBootImageSize,
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PAGE_EXECUTE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// The loader mappings. The only Executable area.
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MiCreateArm3StaticMemoryArea((PVOID)KSEG0_BASE, MmBootImageSize, TRUE);
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//
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// Create the memory area to define the PTE base
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//
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BaseAddress = (PVOID)PTE_BASE;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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PTE_TOP - PTE_BASE + 1,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// The PTE base
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MiCreateArm3StaticMemoryArea((PVOID)PTE_BASE, PTE_TOP - PTE_BASE + 1, FALSE);
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//
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// Create the memory area to define Hyperspace
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//
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BaseAddress = (PVOID)HYPER_SPACE;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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HYPER_SPACE_END - HYPER_SPACE + 1,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// Hyperspace
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MiCreateArm3StaticMemoryArea((PVOID)HYPER_SPACE, HYPER_SPACE_END - HYPER_SPACE + 1, FALSE);
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//
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// Protect the PFN database
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//
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BaseAddress = MmPfnDatabase;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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(MxPfnAllocation << PAGE_SHIFT),
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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MiCreateArm3StaticMemoryArea(MmPfnDatabase, (MxPfnAllocation << PAGE_SHIFT), FALSE);
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//
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// ReactOS requires a memory area to keep the initial NP area off-bounds
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//
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BaseAddress = MmNonPagedPoolStart;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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MmSizeOfNonPagedPoolInBytes,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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MiCreateArm3StaticMemoryArea(MmNonPagedPoolStart, MmSizeOfNonPagedPoolInBytes, FALSE);
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//
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// And we need one more for the system NP
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//
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BaseAddress = MmNonPagedSystemStart;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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MiNonPagedSystemSize,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// System NP
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MiCreateArm3StaticMemoryArea(MmNonPagedSystemStart, MiNonPagedSystemSize, FALSE);
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//
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// We also need one for system view space
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//
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BaseAddress = MiSystemViewStart;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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MmSystemViewSize,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// System view space
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MiCreateArm3StaticMemoryArea(MiSystemViewStart, MmSystemViewSize, FALSE);
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//
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// And another for session space
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//
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BaseAddress = MmSessionBase;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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(ULONG_PTR)MiSessionSpaceEnd -
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(ULONG_PTR)MmSessionBase,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// Session space
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MiCreateArm3StaticMemoryArea(MmSessionBase, (ULONG_PTR)MiSessionSpaceEnd - (ULONG_PTR)MmSessionBase, FALSE);
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// Paged pool
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MiCreateArm3StaticMemoryArea(MmPagedPoolStart, MmSizeOfPagedPoolInBytes, FALSE);
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//
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// One more for ARM paged pool
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//
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BaseAddress = MmPagedPoolStart;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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MmSizeOfPagedPoolInBytes,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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#ifndef _M_AMD64
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//
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// Next, the KPCR
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//
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BaseAddress = (PVOID)PCR;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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PAGE_SIZE * KeNumberProcessors,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// KPCR, one page per CPU. Only for 32-bit kernel.
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MiCreateArm3StaticMemoryArea(PCR, PAGE_SIZE * KeNumberProcessors, FALSE);
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#endif
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//
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// Now the KUSER_SHARED_DATA
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//
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BaseAddress = (PVOID)KI_USER_SHARED_DATA;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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PAGE_SIZE,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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//
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// And the debugger mapping
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//
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BaseAddress = MI_DEBUG_MAPPING;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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PAGE_SIZE,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// KUSER_SHARED_DATA
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MiCreateArm3StaticMemoryArea((PVOID)KI_USER_SHARED_DATA, PAGE_SIZE, FALSE);
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// Debugger mapping
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MiCreateArm3StaticMemoryArea(MI_DEBUG_MAPPING, PAGE_SIZE, FALSE);
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#if defined(_X86_)
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//
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// Finally, reserve the 2 pages we currently make use of for HAL mappings
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//
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BaseAddress = (PVOID)0xFFC00000;
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Status = MmCreateMemoryArea(MmGetKernelAddressSpace(),
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MEMORY_AREA_OWNED_BY_ARM3 | MEMORY_AREA_STATIC,
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&BaseAddress,
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PAGE_SIZE * 2,
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PAGE_READWRITE,
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&MArea,
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0,
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PAGE_SIZE);
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ASSERT(Status == STATUS_SUCCESS);
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// Reserve the 2 pages we currently make use of for HAL mappings.
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// TODO: Remove hard-coded constant and replace with a define.
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MiCreateArm3StaticMemoryArea((PVOID)0xFFC00000, PAGE_SIZE * 2, FALSE);
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#endif
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}
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