https://git.reactos.org/?p=reactos.git;a=commitdiff;h=374fef2d59f39b714ff3152f1590f6af843c8bf5
commit 374fef2d59f39b714ff3152f1590f6af843c8bf5 Author: Jérôme Gardou <[email protected]> AuthorDate: Tue Mar 30 16:21:11 2021 +0200 Commit: Jérôme Gardou <[email protected]> CommitDate: Tue May 18 23:42:19 2021 +0200 [NTOS:MM] Add private pages to process working sets --- ntoskrnl/include/internal/mm.h | 15 +++++++++ ntoskrnl/mm/ARM3/pagfault.c | 66 ++++++++++++++++++++++++++---------- ntoskrnl/mm/ARM3/virtual.c | 76 +++++++++++++++++++++--------------------- ntoskrnl/mm/marea.c | 12 +++---- 4 files changed, 106 insertions(+), 63 deletions(-) diff --git a/ntoskrnl/include/internal/mm.h b/ntoskrnl/include/internal/mm.h index c3391191a17..a591feeec62 100644 --- a/ntoskrnl/include/internal/mm.h +++ b/ntoskrnl/include/internal/mm.h @@ -1674,6 +1674,21 @@ VOID NTAPI MiInitializeWorkingSetList(_Inout_ PMMSUPPORT WorkingSet); +_Requires_exclusive_lock_held_(Vm->WorkingSetMutex) +VOID +NTAPI +MiInsertInWorkingSetList( + _Inout_ PMMSUPPORT Vm, + _In_ PVOID Address, + _In_ ULONG Protection); + +_Requires_exclusive_lock_held_(Vm->WorkingSetMutex) +VOID +NTAPI +MiRemoveFromWorkingSetList( + _Inout_ PMMSUPPORT Vm, + _In_ PVOID Address); + #ifdef __cplusplus } // extern "C" diff --git a/ntoskrnl/mm/ARM3/pagfault.c b/ntoskrnl/mm/ARM3/pagfault.c index 87c789c1742..061577671e9 100644 --- a/ntoskrnl/mm/ARM3/pagfault.c +++ b/ntoskrnl/mm/ARM3/pagfault.c @@ -697,16 +697,6 @@ MiResolveDemandZeroFault(IN PVOID Address, /* Increment demand zero faults */ KeGetCurrentPrcb()->MmDemandZeroCount++; - /* Do we have the lock? */ - if (HaveLock) - { - /* Release it */ - MiReleasePfnLock(OldIrql); - - /* Update performance counters */ - if (Process > HYDRA_PROCESS) Process->NumberOfPrivatePages++; - } - /* Zero the page if need be */ if (NeedZero) MiZeroPfn(PageFrameNumber); @@ -743,6 +733,19 @@ MiResolveDemandZeroFault(IN PVOID Address, /* Windows does these sanity checks */ ASSERT(Pfn1->u1.Event == 0); ASSERT(Pfn1->u3.e1.PrototypePte == 0); + + /* Release it */ + MiReleasePfnLock(OldIrql); + + /* Update performance counters */ + if (Process > HYDRA_PROCESS) Process->NumberOfPrivatePages++; + } + + /* Add the page to our working set, if it's not a proto PTE */ + if ((Process > HYDRA_PROCESS) && (PointerPte == MiAddressToPte(Address))) + { + /* FIXME: Also support session VM scenario */ + MiInsertInWorkingSetList(&Process->Vm, Address, Protection); } // @@ -962,6 +965,9 @@ MiResolvePageFileFault(_In_ BOOLEAN StoreInstruction, KeSetEvent(Pfn1->u1.Event, IO_NO_INCREMENT, FALSE); } + /* And we can insert this into the working set */ + MiInsertInWorkingSetList(&CurrentProcess->Vm, FaultingAddress, Protection); + return Status; } @@ -979,6 +985,8 @@ MiResolveTransitionFault(IN BOOLEAN StoreInstruction, PMMPFN Pfn1; MMPTE TempPte; PMMPTE PointerToPteForProtoPage; + ULONG Protection; + DPRINT("Transition fault on 0x%p with PTE 0x%p in process %s\n", FaultingAddress, PointerPte, CurrentProcess->ImageFileName); @@ -1072,8 +1080,9 @@ MiResolveTransitionFault(IN BOOLEAN StoreInstruction, ASSERT(PointerPte->u.Hard.Valid == 0); ASSERT(PointerPte->u.Trans.Prototype == 0); ASSERT(PointerPte->u.Trans.Transition == 1); + Protection = TempPte.u.Trans.Protection; TempPte.u.Long = (PointerPte->u.Long & ~0xFFF) | - (MmProtectToPteMask[PointerPte->u.Trans.Protection]) | + (MmProtectToPteMask[Protection]) | MiDetermineUserGlobalPteMask(PointerPte); /* Is the PTE writeable? */ @@ -1093,6 +1102,10 @@ MiResolveTransitionFault(IN BOOLEAN StoreInstruction, /* Write the valid PTE */ MI_WRITE_VALID_PTE(PointerPte, TempPte); + /* If this was a user fault, add it to the working set */ + if (CurrentProcess > HYDRA_PROCESS) + MiInsertInWorkingSetList(&CurrentProcess->Vm, FaultingAddress, Protection); + /* Return success */ return STATUS_PAGE_FAULT_TRANSITION; } @@ -1234,6 +1247,9 @@ MiResolveProtoPteFault(IN BOOLEAN StoreInstruction, Pfn1 = MI_PFN_ELEMENT(PageFrameIndex); MiInitializePfn(PageFrameIndex, PointerPte, TRUE); + /* The caller expects us to release the PFN lock */ + MiReleasePfnLock(OldIrql); + /* Fix the protection */ Protection &= ~MM_WRITECOPY; Protection |= MM_READWRITE; @@ -1251,8 +1267,12 @@ MiResolveProtoPteFault(IN BOOLEAN StoreInstruction, /* And finally, write the valid PTE */ MI_WRITE_VALID_PTE(PointerPte, PteContents); - /* The caller expects us to release the PFN lock */ - MiReleasePfnLock(OldIrql); + /* Add the page to our working set */ + if (Process > HYDRA_PROCESS) + { + /* FIXME: Also support session VM scenario */ + MiInsertInWorkingSetList(&Process->Vm, Address, Protection); + } return Status; } @@ -2211,6 +2231,7 @@ UserFault: { PFN_NUMBER PageFrameIndex, OldPageFrameIndex; PMMPFN Pfn1; + ProtectionCode = TempPte.u.Soft.Protection; LockIrql = MiAcquirePfnLock(); @@ -2234,13 +2255,18 @@ UserFault: /* And make a new shiny one with our page */ MiInitializePfn(PageFrameIndex, PointerPte, TRUE); + + MiReleasePfnLock(LockIrql); + TempPte.u.Hard.PageFrameNumber = PageFrameIndex; TempPte.u.Hard.Write = 1; TempPte.u.Hard.CopyOnWrite = 0; MI_WRITE_VALID_PTE(PointerPte, TempPte); - MiReleasePfnLock(LockIrql); + /* We can now add it to our working set */ + MiInsertInWorkingSetList(&CurrentProcess->Vm, Address, ProtectionCode); + /* Return the status */ MiUnlockProcessWorkingSet(CurrentProcess, CurrentThread); @@ -2357,6 +2383,7 @@ UserFault: TempPte.u.Soft.Protection = ProtectionCode; MI_WRITE_INVALID_PTE(PointerPte, TempPte); } + ProtectionCode = PointerPte->u.Soft.Protection; /* Lock the PFN database since we're going to grab a page */ OldIrql = MiAcquirePfnLock(); @@ -2388,14 +2415,14 @@ UserFault: /* Initialize the PFN entry now */ MiInitializePfn(PageFrameIndex, PointerPte, 1); + /* And be done with the lock */ + MiReleasePfnLock(OldIrql); + /* Increment the count of pages in the process */ CurrentProcess->NumberOfPrivatePages++; /* One more demand-zero fault */ - KeGetCurrentPrcb()->MmDemandZeroCount++; - - /* And we're done with the lock */ - MiReleasePfnLock(OldIrql); + InterlockedIncrement(&KeGetCurrentPrcb()->MmDemandZeroCount); /* Fault on user PDE, or fault on user PTE? */ if (PointerPte <= MiHighestUserPte) @@ -2423,6 +2450,9 @@ UserFault: Pfn1 = MI_PFN_ELEMENT(PageFrameIndex); ASSERT(Pfn1->u1.Event == NULL); + /* We can now insert it into the working set */ + MiInsertInWorkingSetList(&CurrentProcess->Vm, Address, ProtectionCode); + /* Demand zero */ ASSERT(KeGetCurrentIrql() <= APC_LEVEL); MiUnlockProcessWorkingSet(CurrentProcess, CurrentThread); diff --git a/ntoskrnl/mm/ARM3/virtual.c b/ntoskrnl/mm/ARM3/virtual.c index eb03fa15e75..938be15c585 100644 --- a/ntoskrnl/mm/ARM3/virtual.c +++ b/ntoskrnl/mm/ARM3/virtual.c @@ -398,9 +398,6 @@ MiDeletePte(IN PMMPTE PointerPte, PFN_NUMBER PageFrameIndex; PMMPDE PointerPde; - /* PFN lock must be held */ - MI_ASSERT_PFN_LOCK_HELD(); - /* Capture the PTE */ TempPte = *PointerPte; @@ -425,6 +422,8 @@ MiDeletePte(IN PMMPTE PointerPte, /* Destroy the PTE */ MI_ERASE_PTE(PointerPte); + KIRQL OldIrql = MiAcquirePfnLock(); + /* Drop the reference on the page table. */ MiDecrementShareCount(MiGetPfnEntry(Pfn1->u4.PteFrame), Pfn1->u4.PteFrame); @@ -444,6 +443,8 @@ MiDeletePte(IN PMMPTE PointerPte, MI_SET_PFN_DELETED(Pfn1); MiDecrementReferenceCount(Pfn1, PageFrameIndex); } + + MiReleasePfnLock(OldIrql); return; } } @@ -474,6 +475,8 @@ MiDeletePte(IN PMMPTE PointerPte, #if (_MI_PAGING_LEVELS == 2) } #endif + + KIRQL OldIrql = MiAcquirePfnLock(); /* Drop the share count on the page table */ PointerPde = MiPteToPde(PointerPte); MiDecrementShareCount(MiGetPfnEntry(PointerPde->u.Hard.PageFrameNumber), @@ -481,6 +484,7 @@ MiDeletePte(IN PMMPTE PointerPte, /* Drop the share count */ MiDecrementShareCount(Pfn1, PageFrameIndex); + MiReleasePfnLock(OldIrql); /* Either a fork, or this is the shared user data page */ if ((PointerPte <= MiHighestUserPte) && (PrototypePte != Pfn1->PteAddress)) @@ -503,6 +507,9 @@ MiDeletePte(IN PMMPTE PointerPte, } else { + /* Remove this address from the WS list */ + MiRemoveFromWorkingSetList(&CurrentProcess->Vm, VirtualAddress); + /* Make sure the saved PTE address is valid */ if ((PMMPTE)((ULONG_PTR)Pfn1->PteAddress & ~0x1) != PointerPte) { @@ -517,6 +524,7 @@ MiDeletePte(IN PMMPTE PointerPte, /* Erase the PTE */ MI_ERASE_PTE(PointerPte); + KIRQL OldIrql = MiAcquirePfnLock(); /* There should only be 1 shared reference count */ ASSERT(Pfn1->u2.ShareCount == 1); @@ -526,6 +534,7 @@ MiDeletePte(IN PMMPTE PointerPte, /* Mark the PFN for deletion and dereference what should be the last ref */ MI_SET_PFN_DELETED(Pfn1); MiDecrementShareCount(Pfn1, PageFrameIndex); + MiReleasePfnLock(OldIrql); /* We should eventually do this */ //CurrentProcess->NumberOfPrivatePages--; @@ -2339,24 +2348,23 @@ MiProtectVirtualMemory(IN PEPROCESS Process, if ((NewAccessProtection & PAGE_NOACCESS) || (NewAccessProtection & PAGE_GUARD)) { - KIRQL OldIrql = MiAcquirePfnLock(); + /* Remove this from the working set */ + MiRemoveFromWorkingSetList(AddressSpace, MiPteToAddress(PointerPte)); /* Mark the PTE as transition and change its protection */ PteContents.u.Hard.Valid = 0; PteContents.u.Soft.Transition = 1; PteContents.u.Trans.Protection = ProtectionMask; /* Decrease PFN share count and write the PTE */ + KIRQL OldIrql = MiAcquirePfnLock(); MiDecrementShareCount(Pfn1, PFN_FROM_PTE(&PteContents)); - // FIXME: remove the page from the WS + MiReleasePfnLock(OldIrql); MI_WRITE_INVALID_PTE(PointerPte, PteContents); #ifdef CONFIG_SMP // FIXME: Should invalidate entry in every CPU TLB ASSERT(FALSE); #endif KeInvalidateTlbEntry(MiPteToAddress(PointerPte)); - - /* We are done for this PTE */ - MiReleasePfnLock(OldIrql); } else { @@ -2485,41 +2493,44 @@ MiMakePdeExistAndMakeValid(IN PMMPDE PointerPde, VOID NTAPI -MiProcessValidPteList(IN PMMPTE *ValidPteList, - IN ULONG Count) +MiProcessValidPteList( + _Inout_ PMMSUPPORT Vm, + _Inout_ PMMPTE *ValidPteList, + _In_ ULONG Count) { - KIRQL OldIrql; ULONG i; - MMPTE TempPte; - PFN_NUMBER PageFrameIndex; - PMMPFN Pfn1, Pfn2; - // - // Acquire the PFN lock and loop all the PTEs in the list + // Loop all the PTEs in the list // - OldIrql = MiAcquirePfnLock(); for (i = 0; i != Count; i++) { // // The PTE must currently be valid // - TempPte = *ValidPteList[i]; + MMPTE TempPte = *ValidPteList[i]; ASSERT(TempPte.u.Hard.Valid == 1); + // + // We can now remove this addres from the working set + // + MiRemoveFromWorkingSetList(Vm, MiPteToAddress(ValidPteList[i])); + // // Get the PFN entry for the page itself, and then for its page table // - PageFrameIndex = PFN_FROM_PTE(&TempPte); - Pfn1 = MiGetPfnEntry(PageFrameIndex); - Pfn2 = MiGetPfnEntry(Pfn1->u4.PteFrame); + PFN_NUMBER PageFrameIndex = PFN_FROM_PTE(&TempPte); + PMMPFN Pfn1 = MiGetPfnEntry(PageFrameIndex); + PMMPFN Pfn2 = MiGetPfnEntry(Pfn1->u4.PteFrame); // // Decrement the share count on the page table, and then on the page // itself // + KIRQL OldIrql = MiAcquirePfnLock(); MiDecrementShareCount(Pfn2, Pfn1->u4.PteFrame); MI_SET_PFN_DELETED(Pfn1); MiDecrementShareCount(Pfn1, PageFrameIndex); + MiReleasePfnLock(OldIrql); // // Make the page decommitted @@ -2532,7 +2543,6 @@ MiProcessValidPteList(IN PMMPTE *ValidPteList, // and then release the PFN lock // KeFlushCurrentTb(); - MiReleasePfnLock(OldIrql); } ULONG @@ -2547,7 +2557,6 @@ MiDecommitPages(IN PVOID StartingAddress, ULONG CommitReduction = 0; PMMPTE ValidPteList[256]; ULONG PteCount = 0; - PMMPFN Pfn1; MMPTE PteContents; PETHREAD CurrentThread = PsGetCurrentThread(); @@ -2579,10 +2588,10 @@ MiDecommitPages(IN PVOID StartingAddress, // such, and does not flush the entire TLB all the time, but right // now we have bigger problems to worry about than TLB flushing. // - PointerPde = MiAddressToPde(StartingAddress); + PointerPde = MiPteToPde(PointerPte); if (PteCount) { - MiProcessValidPteList(ValidPteList, PteCount); + MiProcessValidPteList(&Process->Vm, ValidPteList, PteCount); PteCount = 0; } @@ -2617,21 +2626,13 @@ MiDecommitPages(IN PVOID StartingAddress, //Process->NumberOfPrivatePages--; if (PteContents.u.Hard.Valid) { - // - // It's valid. At this point make sure that it is not a ROS - // PFN. Also, we don't support ProtoPTEs in this code path. - // - Pfn1 = MiGetPfnEntry(PteContents.u.Hard.PageFrameNumber); - ASSERT(MI_IS_ROS_PFN(Pfn1) == FALSE); - ASSERT(Pfn1->u3.e1.PrototypePte == FALSE); - // // Flush any pending PTEs that we had not yet flushed, if our // list has gotten too big, then add this PTE to the flush list. // if (PteCount == 256) { - MiProcessValidPteList(ValidPteList, PteCount); + MiProcessValidPteList(&Process->Vm, ValidPteList, PteCount); PteCount = 0; } ValidPteList[PteCount++] = PointerPte; @@ -2661,7 +2662,7 @@ MiDecommitPages(IN PVOID StartingAddress, // This used to be a zero PTE and it no longer is, so we must add a // reference to the pagetable. // - MiIncrementPageTableReferences(StartingAddress); + MiIncrementPageTableReferences(MiPteToAddress(PointerPte)); // // Next, we account for decommitted PTEs and make the PTE as such @@ -2671,17 +2672,16 @@ MiDecommitPages(IN PVOID StartingAddress, } // - // Move to the next PTE and the next address + // Move to the next PTE // PointerPte++; - StartingAddress = (PVOID)((ULONG_PTR)StartingAddress + PAGE_SIZE); } // // Flush any dangling PTEs from the loop in the last page table, and then // release the working set and return the commit reduction accounting. // - if (PteCount) MiProcessValidPteList(ValidPteList, PteCount); + if (PteCount) MiProcessValidPteList(&Process->Vm, ValidPteList, PteCount); MiUnlockProcessWorkingSetUnsafe(Process, CurrentThread); return CommitReduction; } diff --git a/ntoskrnl/mm/marea.c b/ntoskrnl/mm/marea.c index 1942dd76b27..d2ade0eb04b 100644 --- a/ntoskrnl/mm/marea.c +++ b/ntoskrnl/mm/marea.c @@ -572,15 +572,14 @@ MmDeleteProcessAddressSpace(PEPROCESS Process) #if (_MI_PAGING_LEVELS == 2) { - KIRQL OldIrql; PVOID Address; PMMPDE pointerPde; + KAPC_STATE ApcState; /* Attach to Process */ - KeAttachProcess(&Process->Pcb); + KeStackAttachProcess(&Process->Pcb, &ApcState); - /* Acquire PFN lock */ - OldIrql = MiAcquirePfnLock(); + MiLockProcessWorkingSet(Process, PsGetCurrentThread()); for (Address = MI_LOWEST_VAD_ADDRESS; Address < MM_HIGHEST_VAD_ADDRESS; @@ -604,11 +603,10 @@ MmDeleteProcessAddressSpace(PEPROCESS Process) ASSERT(pointerPde->u.Hard.Valid == 0); } - /* Release lock */ - MiReleasePfnLock(OldIrql); + MiUnlockProcessWorkingSet(Process, PsGetCurrentThread()); /* Detach */ - KeDetachProcess(); + KeUnstackDetachProcess(&ApcState); } #endif
