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[NTOS]: Go ahead and now fill out the OriginalPte field for PFNs initialized with MiInitializePfn(ForOtherProcess). They should only belong to ARM3 so they'll never have SwapEntry/RMAP associated with them. This functionality is important for future Prototype PTE support, among other things, as it lets us get the original PTE value written for a given PFN entry.

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svn path=/trunk/; revision=48976
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Sir Richard 2010-10-04 18:22:50 +00:00
parent 251be92abf
commit ee353ad690
1 changed files with 11 additions and 3 deletions
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14
reactos/ntoskrnl/mm/ARM3/pfnlist.c
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@ -713,6 +713,16 @@ MiInitializePfn(IN PFN_NUMBER PageFrameIndex,
{
/* Only valid from MmCreateProcessAddressSpace path */
ASSERT(PsGetCurrentProcess()->Vm.WorkingSetSize == 0);
/* Make this a demand zero PTE */
MI_MAKE_SOFTWARE_PTE(&Pfn1->OriginalPte, MM_READWRITE);
}
else
{
/* Copy the PTE data */
Pfn1->OriginalPte = *PointerPte;
ASSERT(!((Pfn1->OriginalPte.u.Soft.Prototype == 0) &&
(Pfn1->OriginalPte.u.Soft.Transition == 1)));
}
/* Otherwise this is a fresh page -- set it up */
@ -870,11 +880,9 @@ MiInitializePfnForOtherProcess(IN PFN_NUMBER PageFrameIndex,
/* Setup the PTE */
Pfn1 = MiGetPfnEntry(PageFrameIndex);
Pfn1->PteAddress = PointerPte;
#if 0 // When using ARM3 PFN
/* Make this a software PTE */
MI_MAKE_SOFTWARE_PTE(&Pfn1->OriginalPte, MM_READWRITE);
#endif
/* Setup the page */
ASSERT(Pfn1->u3.e2.ReferenceCount == 0);