Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-02-24 17:34:57 +00:00
Code Issues Projects Releases Packages Wiki Activity

[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.

Browse source 
svn path=/trunk/; revision=48976
This commit is contained in:
Sir Richard 2010-10-04 18:22:50 +00:00
parent 251be92abf
commit ee353ad690
1 changed files with 11 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
reactos/ntoskrnl/mm/ARM3/pfnlist.c
View file

@ -713,6 +713,16 @@ MiInitializePfn(IN PFN_NUMBER PageFrameIndex,
{ {
/* Only valid from MmCreateProcessAddressSpace path */ /* Only valid from MmCreateProcessAddressSpace path */
ASSERT(PsGetCurrentProcess()->Vm.WorkingSetSize == 0); 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 */ /* Otherwise this is a fresh page -- set it up */
@ -870,11 +880,9 @@ MiInitializePfnForOtherProcess(IN PFN_NUMBER PageFrameIndex,
/* Setup the PTE */ /* Setup the PTE */
Pfn1 = MiGetPfnEntry(PageFrameIndex); Pfn1 = MiGetPfnEntry(PageFrameIndex);
Pfn1->PteAddress = PointerPte; Pfn1->PteAddress = PointerPte;
#if 0 // When using ARM3 PFN
/* Make this a software PTE */ /* Make this a software PTE */
MI_MAKE_SOFTWARE_PTE(&Pfn1->OriginalPte, MM_READWRITE); MI_MAKE_SOFTWARE_PTE(&Pfn1->OriginalPte, MM_READWRITE);
#endif
/* Setup the page */ /* Setup the page */
ASSERT(Pfn1->u3.e2.ReferenceCount == 0); ASSERT(Pfn1->u3.e2.ReferenceCount == 0);