+++ /dev/null
-/*
- * PROJECT: ReactOS Kernel
- * LICENSE: BSD - See COPYING.ARM in the top level directory
- * FILE: ntoskrnl/mm/arm/page.c
- * PURPOSE: Old-school Page Management
- * PROGRAMMERS: ReactOS Portable Systems Group
- */
-
-/* INCLUDES *******************************************************************/
-
-#include <ntoskrnl.h>
-#define NDEBUG
-#include <debug.h>
-
-#define MODULE_INVOLVED_IN_ARM3
-#include <mm/ARM3/miarm.h>
-
-/* GLOBALS ********************************************************************/
-
-const
-ULONG
-MmProtectToPteMask[32] =
-{
- //
- // These are the base MM_ protection flags
- //
- 0,
- PTE_READONLY | PTE_ENABLE_CACHE,
- PTE_EXECUTE | PTE_ENABLE_CACHE,
- PTE_EXECUTE_READ | PTE_ENABLE_CACHE,
- PTE_READWRITE | PTE_ENABLE_CACHE,
- PTE_WRITECOPY | PTE_ENABLE_CACHE,
- PTE_EXECUTE_READWRITE | PTE_ENABLE_CACHE,
- PTE_EXECUTE_WRITECOPY | PTE_ENABLE_CACHE,
- //
- // These OR in the MM_NOCACHE flag
- //
- 0,
- PTE_READONLY | PTE_DISABLE_CACHE,
- PTE_EXECUTE | PTE_DISABLE_CACHE,
- PTE_EXECUTE_READ | PTE_DISABLE_CACHE,
- PTE_READWRITE | PTE_DISABLE_CACHE,
- PTE_WRITECOPY | PTE_DISABLE_CACHE,
- PTE_EXECUTE_READWRITE | PTE_DISABLE_CACHE,
- PTE_EXECUTE_WRITECOPY | PTE_DISABLE_CACHE,
- //
- // These OR in the MM_DECOMMIT flag, which doesn't seem supported on x86/64/ARM
- //
- 0,
- PTE_READONLY | PTE_ENABLE_CACHE,
- PTE_EXECUTE | PTE_ENABLE_CACHE,
- PTE_EXECUTE_READ | PTE_ENABLE_CACHE,
- PTE_READWRITE | PTE_ENABLE_CACHE,
- PTE_WRITECOPY | PTE_ENABLE_CACHE,
- PTE_EXECUTE_READWRITE | PTE_ENABLE_CACHE,
- PTE_EXECUTE_WRITECOPY | PTE_ENABLE_CACHE,
- //
- // These OR in the MM_NOACCESS flag, which seems to enable WriteCombining?
- //
- 0,
- PTE_READONLY | PTE_WRITECOMBINED_CACHE,
- PTE_EXECUTE | PTE_WRITECOMBINED_CACHE,
- PTE_EXECUTE_READ | PTE_WRITECOMBINED_CACHE,
- PTE_READWRITE | PTE_WRITECOMBINED_CACHE,
- PTE_WRITECOPY | PTE_WRITECOMBINED_CACHE,
- PTE_EXECUTE_READWRITE | PTE_WRITECOMBINED_CACHE,
- PTE_EXECUTE_WRITECOPY | PTE_WRITECOMBINED_CACHE,
-};
-
-const
-ULONG MmProtectToValue[32] =
-{
- PAGE_NOACCESS,
- PAGE_READONLY,
- PAGE_EXECUTE,
- PAGE_EXECUTE_READ,
- PAGE_READWRITE,
- PAGE_WRITECOPY,
- PAGE_EXECUTE_READWRITE,
- PAGE_EXECUTE_WRITECOPY,
- PAGE_NOACCESS,
- PAGE_NOCACHE | PAGE_READONLY,
- PAGE_NOCACHE | PAGE_EXECUTE,
- PAGE_NOCACHE | PAGE_EXECUTE_READ,
- PAGE_NOCACHE | PAGE_READWRITE,
- PAGE_NOCACHE | PAGE_WRITECOPY,
- PAGE_NOCACHE | PAGE_EXECUTE_READWRITE,
- PAGE_NOCACHE | PAGE_EXECUTE_WRITECOPY,
- PAGE_NOACCESS,
- PAGE_GUARD | PAGE_READONLY,
- PAGE_GUARD | PAGE_EXECUTE,
- PAGE_GUARD | PAGE_EXECUTE_READ,
- PAGE_GUARD | PAGE_READWRITE,
- PAGE_GUARD | PAGE_WRITECOPY,
- PAGE_GUARD | PAGE_EXECUTE_READWRITE,
- PAGE_GUARD | PAGE_EXECUTE_WRITECOPY,
- PAGE_NOACCESS,
- PAGE_WRITECOMBINE | PAGE_READONLY,
- PAGE_WRITECOMBINE | PAGE_EXECUTE,
- PAGE_WRITECOMBINE | PAGE_EXECUTE_READ,
- PAGE_WRITECOMBINE | PAGE_READWRITE,
- PAGE_WRITECOMBINE | PAGE_WRITECOPY,
- PAGE_WRITECOMBINE | PAGE_EXECUTE_READWRITE,
- PAGE_WRITECOMBINE | PAGE_EXECUTE_WRITECOPY
-};
-
-ULONG MmGlobalKernelPageDirectory[4096];
-
-/* Template PTE and PDE for a kernel page */
-MMPDE ValidKernelPde = {.u.Hard.Valid = 1};
-MMPTE ValidKernelPte = {.u.Hard.Valid = 1, .u.Hard.Sbo = 1};
-
-/* Template PDE for a demand-zero page */
-MMPDE DemandZeroPde = {.u.Long = (MM_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS)};
-MMPTE DemandZeroPte = {.u.Long = (MM_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS)};
-
-/* Template PTE for prototype page */
-MMPTE PrototypePte = {.u.Long = (MM_READWRITE << MM_PTE_SOFTWARE_PROTECTION_BITS) | PTE_PROTOTYPE | (MI_PTE_LOOKUP_NEEDED << PAGE_SHIFT)};
-
-MMPTE ValidKernelPteLocal = {{0}};
-MMPDE ValidKernelPdeLocal = {{0}};
-MMPTE MmDecommittedPte = {{0}};
-
-/* PRIVATE FUNCTIONS **********************************************************/
-
-VOID
-NTAPI
-MiFlushTlb(IN PMMPTE PointerPte,
- IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
-}
-
-BOOLEAN
-NTAPI
-MmCreateProcessAddressSpace(IN ULONG MinWs,
- IN PEPROCESS Process,
- IN PULONG DirectoryTableBase)
-{
- UNIMPLEMENTED_DBGBREAK();
- return FALSE;
-}
-
-NTSTATUS
-NTAPI
-MmCreateVirtualMappingUnsafe(IN PEPROCESS Process,
- IN PVOID Address,
- IN ULONG Protection,
- IN PPFN_NUMBER Pages,
- IN ULONG PageCount)
-{
- UNIMPLEMENTED_DBGBREAK();
- return STATUS_SUCCESS;
-}
-
-NTSTATUS
-NTAPI
-MmCreateVirtualMapping(IN PEPROCESS Process,
- IN PVOID Address,
- IN ULONG Protection,
- IN PPFN_NUMBER Pages,
- IN ULONG PageCount)
-{
- UNIMPLEMENTED_DBGBREAK();
- return STATUS_SUCCESS;
-}
-
-VOID
-NTAPI
-MmRawDeleteVirtualMapping(IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
-}
-
-VOID
-NTAPI
-MmDeleteVirtualMapping(IN PEPROCESS Process,
- IN PVOID Address,
- OUT PBOOLEAN WasDirty,
- OUT PPFN_NUMBER Page)
-{
- UNIMPLEMENTED_DBGBREAK();
-}
-
-VOID
-NTAPI
-MmDeletePageFileMapping(IN PEPROCESS Process,
- IN PVOID Address,
- IN SWAPENTRY *SwapEntry)
-{
- UNIMPLEMENTED_DBGBREAK();
-}
-
-NTSTATUS
-NTAPI
-MmCreatePageFileMapping(IN PEPROCESS Process,
- IN PVOID Address,
- IN SWAPENTRY SwapEntry)
-{
- UNIMPLEMENTED_DBGBREAK();
- return STATUS_NOT_IMPLEMENTED;
-}
-
-PFN_NUMBER
-NTAPI
-MmGetPfnForProcess(IN PEPROCESS Process,
- IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
- return 0;
-}
-
-BOOLEAN
-NTAPI
-MmIsDirtyPage(IN PEPROCESS Process,
- IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
- return FALSE;
-}
-
-VOID
-NTAPI
-MmSetCleanPage(IN PEPROCESS Process,
- IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
-}
-
-VOID
-NTAPI
-MmSetDirtyPage(IN PEPROCESS Process,
- IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
-}
-
-BOOLEAN
-NTAPI
-MmIsPagePresent(IN PEPROCESS Process,
- IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
- return FALSE;
-}
-
-BOOLEAN
-NTAPI
-MmIsPageSwapEntry(IN PEPROCESS Process,
- IN PVOID Address)
-{
- UNIMPLEMENTED_DBGBREAK();
- return FALSE;
-}
-
-ULONG
-NTAPI
-MmGetPageProtect(IN PEPROCESS Process,
- IN PVOID Address)
-{
- /* We don't enforce any protection on the pages -- they are all RWX */
- return PAGE_READWRITE;
-}
-
-VOID
-NTAPI
-MmSetPageProtect(IN PEPROCESS Process,
- IN PVOID Address,
- IN ULONG Protection)
-{
- /* We don't enforce any protection on the pages -- they are all RWX */
- return;
-}
-
-VOID
-NTAPI
-MmInitGlobalKernelPageDirectory(VOID)
-{
- ULONG i;
- PULONG CurrentPageDirectory = (PULONG)PDE_BASE;
-
- /* Loop the 2GB of address space which belong to the kernel */
- for (i = MiGetPdeOffset(MmSystemRangeStart); i < 2048; i++)
- {
- /* Check if we have an entry for this already */
- if ((i != MiGetPdeOffset(PTE_BASE)) &&
- (i != MiGetPdeOffset(HYPER_SPACE)) &&
- (!MmGlobalKernelPageDirectory[i]) &&
- (CurrentPageDirectory[i]))
- {
- /* We don't, link it in our global page directory */
- MmGlobalKernelPageDirectory[i] = CurrentPageDirectory[i];
- }
- }
-}
-
-VOID
-NTAPI
-MmGetPageFileMapping(
- PEPROCESS Process,
- PVOID Address,
- SWAPENTRY* SwapEntry)
-{
- ASSERT(FALSE);
-}
-
-BOOLEAN
-NTAPI
-MmIsDisabledPage(PEPROCESS Process, PVOID Address)
-{
- ASSERT(FALSE);
- return FALSE;
-}
-
-VOID
-NTAPI
-INIT_FUNCTION
-MiInitializeSessionSpaceLayout(VOID)
-{
- ASSERT(FALSE);
-}
-
projects / reactos.git / blobdiff