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- Made a tlb entry invalid on all processors if the mapping is deleted or changed.

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svn path=/trunk/; revision=11836
This commit is contained in:
Hartmut Birr 2004-11-27 16:37:52 +00:00
parent 460b7f79ca
commit 2c9eb4b5f2
1 changed files with 71 additions and 79 deletions
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150
reactos/ntoskrnl/mm/i386/page.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: page.c,v 1.77 2004/11/13 23:08:35 hbirr Exp $
/* $Id: page.c,v 1.78 2004/11/27 16:37:52 hbirr Exp $
*
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/mm/i386/page.c
@ -83,6 +83,52 @@ extern BOOLEAN Ke386GlobalPagesEnabled;
/* FUNCTIONS ***************************************************************/
BOOLEAN MmUnmapPageTable(PULONG Pt);
VOID
STDCALL
MiFlushTlbIpiRoutine(PVOID Address)
{
if (Address == (PVOID)0xffffffff)
{
KeFlushCurrentTb();
}
else if (Address == (PVOID)0xfffffffe)
{
FLUSH_TLB;
}
else
{
FLUSH_TLB_ONE(Address);
}
}
VOID
MiFlushTlb(PULONG Pt, PVOID Address)
{
#ifdef MP
if (Pt)
{
MmUnmapPageTable(Pt);
}
if (KeNumberProcessors>1)
{
KeIpiGenericCall(MiFlushTlbIpiRoutine, Address);
}
else
{
MiFlushTlbIpiRoutine(Address);
}
#else
if ((Pt && MmUnmapPageTable(Pt)) || Address >= (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
#endif
}
PULONG
MmGetPageDirectory(VOID)
{
@ -391,7 +437,7 @@ VOID MmDeletePageTable(PEPROCESS Process, PVOID Address)
KEBUGCHECK(0);
// MmGlobalKernelPageDirectory[ADDR_TO_PDE_OFFSET(Address)] = 0;
}
FLUSH_TLB;
MiFlushTlb(NULL, Address);
if (Process != NULL && Process != CurrentProcess)
{
KeDetachProcess();
@ -442,7 +488,7 @@ VOID MmFreePageTable(PEPROCESS Process, PVOID Address)
Pfn = PTE_TO_PFN(*(ADDR_TO_PDE(Address)));
*(ADDR_TO_PDE(Address)) = 0;
}
FLUSH_TLB;
MiFlushTlb(NULL, Address);
if (Address >= (PVOID)KERNEL_BASE)
{
@ -776,10 +822,7 @@ MmDisableVirtualMapping(PEPROCESS Process, PVOID Address, BOOL* WasDirty, PPFN_T
tmpPte = Pte & ~PA_PRESENT;
} while (Pte != ExfInterlockedCompareExchange64(Pt, &tmpPte, &Pte));
if (MmUnmapPageTable((PULONG)Pt) || Address >= (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
WasValid = PAE_PAGE_MASK(Pte) != 0LL ? TRUE : FALSE;
if (!WasValid)
{
@ -816,10 +859,7 @@ MmDisableVirtualMapping(PEPROCESS Process, PVOID Address, BOOL* WasDirty, PPFN_T
Pte = *Pt;
} while (Pte != InterlockedCompareExchange(Pt, Pte & ~PA_PRESENT, Pte));
if (MmUnmapPageTable(Pt) || Address >= (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
WasValid = (PAGE_MASK(Pte) != 0);
if (!WasValid)
{
@ -854,7 +894,7 @@ MmRawDeleteVirtualMapping(PVOID Address)
* Set the entry to zero
*/
ExfpInterlockedExchange64(Pt, &ZeroPte);
FLUSH_TLB_ONE(Address);
MiFlushTlb((PULONG)Pt, Address);
}
}
else
@ -868,7 +908,7 @@ MmRawDeleteVirtualMapping(PVOID Address)
* Set the entry to zero
*/
*Pt = 0;
FLUSH_TLB_ONE(Address);
MiFlushTlb(Pt, Address);
}
}
}
@ -910,10 +950,7 @@ MmDeleteVirtualMapping(PEPROCESS Process, PVOID Address, BOOL FreePage,
Pte = 0LL;
Pte = ExfpInterlockedExchange64(Pt, &Pte);
if ((MmUnmapPageTable((PULONG)Pt) || Address >=(PVOID)KERNEL_BASE) && Pte)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
WasValid = PAE_PAGE_MASK(Pte) != 0 ? TRUE : FALSE;
if (WasValid)
@ -968,10 +1005,7 @@ MmDeleteVirtualMapping(PEPROCESS Process, PVOID Address, BOOL FreePage,
*/
Pte = InterlockedExchange(Pt, 0);
if ((MmUnmapPageTable(Pt) || Address >=(PVOID)KERNEL_BASE) && Pte)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
WasValid = (PAGE_MASK(Pte) != 0);
if (WasValid)
@ -1047,10 +1081,7 @@ MmDeletePageFileMapping(PEPROCESS Process, PVOID Address,
Pte = 0LL;
Pte = ExfpInterlockedExchange64(Pt, &Pte);
if (MmUnmapPageTable((PULONG)Pt) || Address >= (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
/*
* Decrement the reference count for this page table.
@ -1094,10 +1125,7 @@ MmDeletePageFileMapping(PEPROCESS Process, PVOID Address,
*/
Pte = InterlockedExchange(Pt, 0);
if (MmUnmapPageTable(Pt) || Address >= (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
/*
* Decrement the reference count for this page table.
@ -1206,10 +1234,7 @@ MmIsAccessedAndResetAccessPage(PEPROCESS Process, PVOID Address)
if (Pte & PA_ACCESSED)
{
if (MmUnmapPageTable((PULONG)Pt) || Address >= (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
return TRUE;
}
else
@ -1236,10 +1261,7 @@ MmIsAccessedAndResetAccessPage(PEPROCESS Process, PVOID Address)
if (Pte & PA_ACCESSED)
{
if (MmUnmapPageTable(Pt) || Address >= (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
return TRUE;
}
else
@ -1278,10 +1300,7 @@ VOID MmSetCleanPage(PEPROCESS Process, PVOID Address)
if (Pte & PA_DIRTY)
{
if (MmUnmapPageTable((PULONG)Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
}
else
{
@ -1307,10 +1326,7 @@ VOID MmSetCleanPage(PEPROCESS Process, PVOID Address)
if (Pte & PA_DIRTY)
{
if (MmUnmapPageTable(Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
}
else
{
@ -1345,10 +1361,7 @@ VOID MmSetDirtyPage(PEPROCESS Process, PVOID Address)
} while (Pte != ExfInterlockedCompareExchange64(Pt, &tmpPte, &Pte));
if (!(Pte & PA_DIRTY))
{
if (MmUnmapPageTable((PULONG)Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
}
else
{
@ -1372,10 +1385,7 @@ VOID MmSetDirtyPage(PEPROCESS Process, PVOID Address)
} while (Pte != InterlockedCompareExchange(Pt, Pte | PA_DIRTY, Pte));
if (!(Pte & PA_DIRTY))
{
if (MmUnmapPageTable(Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
}
else
{
@ -1405,10 +1415,7 @@ VOID MmEnableVirtualMapping(PEPROCESS Process, PVOID Address)
} while (Pte != ExfInterlockedCompareExchange64(Pt, &tmpPte, &Pte));
if (!(Pte & PA_PRESENT))
{
if (MmUnmapPageTable((PULONG)Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
}
else
{
@ -1432,10 +1439,7 @@ VOID MmEnableVirtualMapping(PEPROCESS Process, PVOID Address)
} while (Pte != InterlockedCompareExchange(Pt, Pte | PA_PRESENT, Pte));
if (!(Pte & PA_PRESENT))
{
if (MmUnmapPageTable(Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
}
else
{
@ -1639,10 +1643,7 @@ MmCreatePageFileMapping(PEPROCESS Process,
if (Pte != 0)
{
if (MmUnmapPageTable((PULONG)Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
}
else
{
@ -1667,10 +1668,7 @@ MmCreatePageFileMapping(PEPROCESS Process,
*Pt = SwapEntry << 1;
if (Pte != 0)
{
if (MmUnmapPageTable(Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
}
else
{
@ -1819,7 +1817,7 @@ MmCreateVirtualMappingUnsafe(PEPROCESS Process,
if (Address > (PVOID)KERNEL_BASE ||
(Pt >= (PULONGLONG)PAGETABLE_MAP && Pt < (PULONGLONG)PAGETABLE_MAP + 4*512*512))
{
FLUSH_TLB_ONE(Address);
MiFlushTlb((PULONG)Pt, Address);
}
}
}
@ -1884,7 +1882,7 @@ MmCreateVirtualMappingUnsafe(PEPROCESS Process,
if (Address > (PVOID)KERNEL_BASE ||
(Pt >= (PULONG)PAGETABLE_MAP && Pt < (PULONG)PAGETABLE_MAP + 1024*1024))
{
FLUSH_TLB_ONE(Address);
MiFlushTlb(Pt, Address);
}
}
}
@ -2018,10 +2016,7 @@ MmSetPageProtect(PEPROCESS Process, PVOID Address, ULONG flProtect)
}
} while (Pte != ExfInterlockedCompareExchange64(Pt, &tmpPte, &Pte));
if (MmUnmapPageTable((PULONG)Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb((PULONG)Pt, Address);
}
else
{
@ -2033,10 +2028,7 @@ MmSetPageProtect(PEPROCESS Process, PVOID Address, ULONG flProtect)
KEBUGCHECK(0);
}
*Pt = PAGE_MASK(*Pt) | Attributes | (*Pt & (PA_ACCESSED|PA_DIRTY));
if (MmUnmapPageTable(Pt) || Address > (PVOID)KERNEL_BASE)
{
FLUSH_TLB_ONE(Address);
}
MiFlushTlb(Pt, Address);
}
}