* Laa-a-a-a-dies and gentlemen..... It was a deferred success. Move along mes chers, you make the place look crowded.
svn path=/trunk/; revision=55247
struct _EPROCESS;
-/* ReactOS Mm Hacks */
-VOID
-FASTCALL
-MiSyncForProcessAttach(
- IN PKTHREAD NextThread,
- IN PEPROCESS Process
-);
-
-VOID
-FASTCALL
-MiSyncForContextSwitch(
- IN PKTHREAD Thread
-);
-
extern PMMSUPPORT MmKernelAddressSpace;
extern PFN_COUNT MiFreeSwapPages;
extern PFN_COUNT MiUsedSwapPages;
/* Get thread pointers */
OldThread = (PKTHREAD)(OldThreadAndApcFlag & ~3);
NewThread = Pcr->PrcbData.CurrentThread;
-
- /* ReactOS Mm Hack */
- MiSyncForContextSwitch(NewThread);
/* Get the old thread and set its kernel stack */
OldThread->KernelStack = SwitchFrame;
/* Release lock */
KiReleaseApcLockFromDpcLevel(ApcLock);
- /* Make sure that we are in the right page directory (ReactOS Mm Hack) */
- MiSyncForProcessAttach(Thread, (PEPROCESS)Process);
-
/* Swap Processes */
KiSwapProcess(Process, SavedApcState->Process);
/* Release lock */
KiReleaseApcLockFromDpcLevel(&ApcLock);
- /* Make sure that we are in the right page directory (ReactOS Mm Hack) */
- MiSyncForProcessAttach(Thread, (PEPROCESS)Process);
-
/* Swap Processes */
KiSwapProcess(Thread->ApcState.Process, Process);
/* Release lock */
KiReleaseApcLockFromDpcLevel(&ApcLock);
- /* Make sure that we are in the right page directory (ReactOS Mm Hack) */
- MiSyncForProcessAttach(Thread, (PEPROCESS)Process);
-
/* Swap Processes */
KiSwapProcess(Thread->ApcState.Process, Process);
Thread->StackBase = KernelStack;
Thread->StackLimit = (ULONG_PTR)KernelStack - KERNEL_STACK_SIZE;
Thread->KernelStackResident = TRUE;
-
- /* Make sure that we are in the right page directory (ReactOS Mm Hack) */
- MiSyncForProcessAttach(Thread, (PEPROCESS)Process);
/* Enter SEH to avoid crashes due to user mode */
Status = STATUS_SUCCESS;
/* Save the wait IRQL */
WaitIrql = CurrentThread->WaitIrql;
- /* REACTOS Mm Hack of Doom */
- MiSyncForContextSwitch(NextThread);
-
/* Swap contexts */
ApcState = KiSwapContext(WaitIrql, CurrentThread);
/* Sanity check */
ASSERT(OldIrql <= DISPATCH_LEVEL);
- /* REACTOS Mm Hack of Doom */
- MiSyncForContextSwitch(NextThread);
-
/* Swap to new thread */
KiSwapContext(APC_LEVEL, Thread);
Status = STATUS_SUCCESS;
return p;
}
-VOID
-NTAPI
-MmUpdatePageDir(PEPROCESS Process, PVOID Address, ULONG Size)
-{
- ULONG StartOffset, EndOffset, Offset;
- PULONG Pde;
-
- //
- // Check if the process isn't there anymore
- // This is probably a bad sign, since it means the caller is setting cr3 to
- // 0 or something...
- //
- if ((PTE_TO_PFN(Process->Pcb.DirectoryTableBase[0]) == 0) && (Process != PsGetCurrentProcess()))
- {
- DPRINT1("Process: %16s is dead: %p\n", Process->ImageFileName, Process->Pcb.DirectoryTableBase[0]);
- ASSERT(FALSE);
- return;
- }
-
- if (Address < MmSystemRangeStart)
- {
- KeBugCheck(MEMORY_MANAGEMENT);
- }
-
- StartOffset = ADDR_TO_PDE_OFFSET(Address);
- EndOffset = ADDR_TO_PDE_OFFSET((PVOID)((ULONG_PTR)Address + Size));
-
- if (Process != NULL && Process != PsGetCurrentProcess())
- {
- Pde = MmCreateHyperspaceMapping(PTE_TO_PFN(Process->Pcb.DirectoryTableBase[0]));
- }
- else
- {
- Pde = (PULONG)PAGEDIRECTORY_MAP;
- }
- for (Offset = StartOffset; Offset <= EndOffset; Offset++)
- {
- if (Offset != ADDR_TO_PDE_OFFSET(PAGETABLE_MAP))
- {
- InterlockedCompareExchangePte(&Pde[Offset], MmGlobalKernelPageDirectory[Offset], 0);
- }
- }
- if (Pde != (PULONG)PAGEDIRECTORY_MAP)
- {
- MmDeleteHyperspaceMapping(Pde);
- }
-}
-
VOID
INIT_FUNCTION
NTAPI
/* PRIVATE FUNCTIONS **********************************************************/
-VOID
-FASTCALL
-MiSyncForProcessAttach(IN PKTHREAD Thread,
- IN PEPROCESS Process)
-{
- PETHREAD Ethread = CONTAINING_RECORD(Thread, ETHREAD, Tcb);
- //DPRINT1("Hack sync for process: %p and thread: %p\n", Process, Thread);
- //DPRINT1("Thread stack hack: %p %d\n", Thread->StackLimit, Thread->LargeStack);
-
- /* Hack Sync because Mm is broken */
- MmUpdatePageDir(Process, Ethread, sizeof(ETHREAD));
- MmUpdatePageDir(Process, Ethread->ThreadsProcess, sizeof(EPROCESS));
- MmUpdatePageDir(Process,
- (PVOID)Thread->StackLimit,
- Thread->LargeStack ?
- KERNEL_LARGE_STACK_SIZE : KERNEL_STACK_SIZE);
-}
-
-VOID
-FASTCALL
-MiSyncForContextSwitch(IN PKTHREAD Thread)
-{
- PVOID Process = PsGetCurrentProcess();
- PETHREAD Ethread = CONTAINING_RECORD(Thread, ETHREAD, Tcb);
- //DPRINT1("Hack sync for thread: %p and process: %p\n", Thread, Process);
- //DPRINT1("Thread stack hack: %p %d\n", Thread->StackLimit, Thread->LargeStack);
-
- /* Hack Sync because Mm is broken */
- MmUpdatePageDir(Process, Ethread->ThreadsProcess, sizeof(EPROCESS));
- MmUpdatePageDir(Process,
- (PVOID)Thread->StackLimit,
- Thread->LargeStack ?
- KERNEL_LARGE_STACK_SIZE : KERNEL_STACK_SIZE);
-}
-
NTSTATUS
NTAPI
MmpAccessFault(KPROCESSOR_MODE Mode,