Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-01-13 01:22:03 +00:00
Code Issues Projects Releases Packages Wiki Activity

[NTOS]: Build paged pool demand-zero PTE with MI_MAKE_SOFTWARE_PTE macro.

Browse source 
[NTOS]: Handle paged pool demand-zero fault fulfillment with MI_MAKE_HARDWARE_PTE macro.
[NTOS]: Use MiRemoveAnyPage instead of MmAllocPage, in paged pool demand-zero fault fulfillment.
These changes affect code paths that are not currently in-use.

svn path=/trunk/; revision=47575
This commit is contained in:
Sir Richard 2010-06-04 20:18:27 +00:00
parent f150c299f2
commit 63ce635b0f
2 changed files with 12 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
reactos/ntoskrnl/mm/ARM3/pagfault.c
View file

@ -105,11 +105,12 @@ MiResolveDemandZeroFault(IN PVOID Address,
OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock); OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
ASSERT(PointerPte->u.Hard.Valid == 0); ASSERT(PointerPte->u.Hard.Valid == 0);
// /* Get a page */
// Get a page PageFrameNumber = MiRemoveAnyPage(0);
// DPRINT1("New pool page: %lx\n", PageFrameNumber);
PageFrameNumber = MmAllocPage(MC_PPOOL);
DPRINT("New pool page: %lx\n", PageFrameNumber); /* Initialize it */
MiInitializePfn(PageFrameNumber, PointerPte, TRUE);
// //
// Release PFN lock // Release PFN lock
@ -124,11 +125,8 @@ MiResolveDemandZeroFault(IN PVOID Address,
/* Shouldn't see faults for user PTEs yet */ /* Shouldn't see faults for user PTEs yet */
ASSERT(PointerPte > MiHighestUserPte); ASSERT(PointerPte > MiHighestUserPte);
// /* Build the PTE */
// Build the PTE MI_MAKE_HARDWARE_PTE(&TempPte, PointerPte, PointerPte->u.Soft.Protection, PageFrameNumber);
//
TempPte = ValidKernelPte;
TempPte.u.Hard.PageFrameNumber = PageFrameNumber;
ASSERT(TempPte.u.Hard.Valid == 1); ASSERT(TempPte.u.Hard.Valid == 1);
ASSERT(PointerPte->u.Hard.Valid == 0); ASSERT(PointerPte->u.Hard.Valid == 0);
*PointerPte = TempPte; *PointerPte = TempPte;
@ -137,7 +135,7 @@ MiResolveDemandZeroFault(IN PVOID Address,
// //
// It's all good now // It's all good now
// //
DPRINT("Paged pool page has now been paged in\n"); DPRINT1("Paged pool page has now been paged in\n");
return STATUS_PAGE_FAULT_DEMAND_ZERO; return STATUS_PAGE_FAULT_DEMAND_ZERO;
} }

8
reactos/ntoskrnl/mm/ARM3/pool.c
View file

@ -417,11 +417,9 @@ MiAllocatePoolPages(IN POOL_TYPE PoolType,
// //
KeFlushEntireTb(TRUE, TRUE); KeFlushEntireTb(TRUE, TRUE);
// /* Setup a demand-zero writable PTE */
// Setup a demand-zero writable PTE DPRINT1("Setting up demand zero\n");
// MI_MAKE_SOFTWARE_PTE(&TempPte, MM_READWRITE);
TempPte.u.Long = 0;
MI_MAKE_WRITE_PAGE(&TempPte);
// //
// Find the first and last PTE, then loop them all // Find the first and last PTE, then loop them all