mirror of
https://github.com/reactos/reactos.git
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151 lines
2.9 KiB
C
151 lines
2.9 KiB
C
/*
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* PROJECT: ReactOS Kernel
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* LICENSE: BSD - See COPYING.ARM in the top level directory
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* FILE: ntoskrnl/mm/ARM3/mmsup.c
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* PURPOSE: ARM Memory Manager Support Routines
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* PROGRAMMERS: ReactOS Portable Systems Group
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*/
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/* INCLUDES *******************************************************************/
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#include <ntoskrnl.h>
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#define NDEBUG
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#include <debug.h>
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#line 15 "ARM³::MMSUP"
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#define MODULE_INVOLVED_IN_ARM3
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#include "../ARM3/miarm.h"
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/* PUBLIC FUNCTIONS ***********************************************************/
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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MmMapUserAddressesToPage(IN PVOID BaseAddress,
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IN SIZE_T NumberOfBytes,
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IN PVOID PageAddress)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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MmAdjustWorkingSetSize(IN SIZE_T WorkingSetMinimumInBytes,
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IN SIZE_T WorkingSetMaximumInBytes,
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IN ULONG SystemCache,
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IN BOOLEAN IncreaseOkay)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @unimplemented
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*/
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BOOLEAN
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NTAPI
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MmSetAddressRangeModified(IN PVOID Address,
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IN SIZE_T Length)
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{
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UNIMPLEMENTED;
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return FALSE;
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}
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/*
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* @implemented
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*/
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BOOLEAN
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NTAPI
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MmIsAddressValid(IN PVOID VirtualAddress)
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{
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//
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// Just check the Valid bit in the Address' PDE and PTE
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//
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if ((MiAddressToPde(VirtualAddress)->u.Hard.Valid == 0) ||
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(MiAddressToPte(VirtualAddress)->u.Hard.Valid == 0))
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{
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//
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// Attempting to access this page is guranteed to result in a page fault
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//
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return FALSE;
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}
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//
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// This address is valid now, but it will only stay so if the caller holds
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// the PFN lock
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//
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return TRUE;
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}
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/*
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* @unimplemented
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*/
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BOOLEAN
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NTAPI
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MmIsNonPagedSystemAddressValid(IN PVOID VirtualAddress)
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{
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DPRINT1("WARNING: %s returns bogus result\n", __FUNCTION__);
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return MmIsAddressValid(VirtualAddress);
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}
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/*
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* @unimplemented
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*/
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NTSTATUS
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NTAPI
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MmSetBankedSection(IN HANDLE ProcessHandle,
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IN PVOID VirtualAddress,
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IN ULONG BankLength,
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IN BOOLEAN ReadWriteBank,
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IN PVOID BankRoutine,
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IN PVOID Context)
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{
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UNIMPLEMENTED;
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return STATUS_NOT_IMPLEMENTED;
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}
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/*
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* @implemented
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*/
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BOOLEAN
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NTAPI
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MmIsRecursiveIoFault(VOID)
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{
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PETHREAD Thread = PsGetCurrentThread();
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//
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// If any of these is true, this is a recursive fault
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//
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return ((Thread->DisablePageFaultClustering) | (Thread->ForwardClusterOnly));
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}
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/*
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* @implemented
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*/
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BOOLEAN
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NTAPI
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MmIsThisAnNtAsSystem(VOID)
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{
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/* Return if this is a server system */
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return MmProductType;
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}
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/*
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* @implemented
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*/
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MM_SYSTEMSIZE
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NTAPI
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MmQuerySystemSize(VOID)
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{
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/* Return the low, medium or high memory system type */
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return MmSystemSize;
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}
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/* EOF */
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