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[NTOS:MM] Do not map Process Working Set List in kernel space

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This is not needed anymore and causes havoc on amd64
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Jérôme Gardou 2021-05-19 22:20:38 +02:00 committed by Jérôme Gardou
parent a3629ab08b
commit 7d0d14965e
1 changed files with 1 additions and 9 deletions
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10
ntoskrnl/mm/ARM3/procsup.c
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@ -916,7 +916,7 @@ MmInitializeProcessAddressSpace(IN PEPROCESS Process,
PWCHAR Source;
PCHAR Destination;
USHORT Length = 0;
MMPTE TempPte;
#if (_MI_PAGING_LEVELS >= 3)
PMMPPE PointerPpe;
#endif
@ -1003,13 +1003,6 @@ MmInitializeProcessAddressSpace(IN PEPROCESS Process,
/* Now initialize the working set list */
MiInitializeWorkingSetList(&Process->Vm);
/* Map the process working set in kernel space */
/* FIXME: there should be no need */
PointerPte = MiReserveSystemPtes(1, SystemPteSpace);
MI_MAKE_HARDWARE_PTE_KERNEL(&TempPte, PointerPte, MM_READWRITE, Process->WorkingSetPage);
MI_WRITE_VALID_PTE(PointerPte, TempPte);
Process->Vm.VmWorkingSetList = MiPteToAddress(PointerPte);
/* The rule is that the owner process is always in the FLINK of the PDE's PFN entry */
Pfn = MiGetPfnEntry(Process->Pcb.DirectoryTableBase[0] >> PAGE_SHIFT);
ASSERT(Pfn->u4.PteFrame == MiGetPfnEntryIndex(Pfn));
@ -1361,7 +1354,6 @@ MmDeleteProcessAddressSpace2(IN PEPROCESS Process)
MiDecrementShareCount(Pfn2, Pfn1->u4.PteFrame);
MiDecrementShareCount(Pfn1, Process->WorkingSetPage);
ASSERT((Pfn1->u3.e2.ReferenceCount == 0) || (Pfn1->u3.e1.WriteInProgress));
MiReleaseSystemPtes(MiAddressToPte(Process->Vm.VmWorkingSetList), 1, SystemPteSpace);
/* Now map hyperspace and its page table */
PageFrameIndex = Process->Pcb.DirectoryTableBase[1] >> PAGE_SHIFT;