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[NTOS:MM] Properly initialize initial process address space on amd64

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By applying the same kludge on the relevant MMPFNs than on x86
This commit is contained in:
Jérôme Gardou 2021-05-25 10:44:11 +02:00 committed by Jérôme Gardou
parent f9ea58dc97
commit ed1038ff9c
2 changed files with 23 additions and 8 deletions
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7
ntoskrnl/mm/ARM3/procsup.c
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@ -943,10 +943,6 @@ MmInitializeProcessAddressSpace(IN PEPROCESS Process,
ASSERT(Process->VadRoot.NumberGenericTableElements == 0);
Process->VadRoot.BalancedRoot.u1.Parent = &Process->VadRoot.BalancedRoot;
#ifdef _M_AMD64
/* On x64 the PFNs for the initial process are already set up */
if (Process != &KiInitialProcess) {
#endif
/* Lock our working set */
MiLockProcessWorkingSet(Process, PsGetCurrentThread());
@ -1014,9 +1010,6 @@ MmInitializeProcessAddressSpace(IN PEPROCESS Process,
/* Release the process working set */
MiUnlockProcessWorkingSet(Process, PsGetCurrentThread());
#ifdef _M_AMD64
} /* On x64 the PFNs for the initial process are already set up */
#endif
#ifdef _M_AMD64
/* On x64 we need a VAD for the shared user page */

24
ntoskrnl/mm/amd64/init.c
View file

@ -252,6 +252,8 @@ MiInitializePageTable(VOID)
RtlZeroMemory(MiPteToAddress(PointerPxe), PAGE_SIZE);
}
}
PxePfn = PFN_FROM_PXE(MiAddressToPxe((PVOID)HYPER_SPACE));
PsGetCurrentProcess()->Pcb.DirectoryTableBase[1] = PxePfn << PAGE_SHIFT;
/* Map PPEs for paged pool */
MiMapPPEs(MmPagedPoolStart, MmPagedPoolEnd);
@ -713,7 +715,6 @@ MiInitMachineDependent(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
// PrototypePte.u.ProtoAddress
PrototypePte.u.Soft.PageFileHigh = MI_PTE_LOOKUP_NEEDED;
MiInitializePageTable();
MiBuildNonPagedPool();
@ -723,6 +724,27 @@ MiInitMachineDependent(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
/* Map the PFN database pages */
MiBuildPfnDatabase(LoaderBlock);
/* Reset the ref/share count so that MmInitializeProcessAddressSpace works */
PMMPFN Pfn = MiGetPfnEntry(PFN_FROM_PTE((PMMPTE)PXE_SELFMAP));
Pfn->u2.ShareCount = 0;
Pfn->u3.e2.ReferenceCount = 0;
Pfn = MiGetPfnEntry(PFN_FROM_PDE(MiAddressToPde((PVOID)HYPER_SPACE)));
Pfn->u2.ShareCount = 0;
Pfn->u3.e2.ReferenceCount = 0;
Pfn = MiGetPfnEntry(PFN_FROM_PPE(MiAddressToPpe((PVOID)HYPER_SPACE)));
Pfn->u2.ShareCount = 0;
Pfn->u3.e2.ReferenceCount = 0;
Pfn = MiGetPfnEntry(PFN_FROM_PXE(MiAddressToPxe((PVOID)HYPER_SPACE)));
Pfn->u2.ShareCount = 0;
Pfn->u3.e2.ReferenceCount = 0;
Pfn = MiGetPfnEntry(PFN_FROM_PTE(MiAddressToPte(MmWorkingSetList)));
Pfn->u2.ShareCount = 0;
Pfn->u3.e2.ReferenceCount = 0;
/* Initialize the nonpaged pool */
InitializePool(NonPagedPool, 0);