26 Jul
2010
26 Jul
'10
9:45 p.m.
Author: sir_richard
Date: Mon Jul 26 21:45:42 2010
New Revision: 48288
URL: http://svn.reactos.org/svn/reactos?rev=48288&view=rev
Log:
[NTOS]: Another long-lost-promised straggler for Timo. There may be more of these needed,
this is what I had done on my disk.
Modified:
trunk/reactos/ntoskrnl/mm/ARM3/mdlsup.c
trunk/reactos/ntoskrnl/mm/ARM3/mminit.c
trunk/reactos/ntoskrnl/mm/ARM3/pagfault.c
trunk/reactos/ntoskrnl/mm/ARM3/pool.c
Modified: trunk/reactos/ntoskrnl/mm/ARM3/mdlsup.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/mdlsup.c?…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/mdlsup.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/mdlsup.c [iso-8859-1] Mon Jul 26 21:45:42 2010
@@ -813,6 +813,10 @@
// Assume failure and check for non-mapped pages
//
*MdlPages = -1;
+#if (_MI_PAGING_LEVELS >= 3)
+ /* Should be checking the PPE and PXE */
+ ASSERT(FALSE);
+#endif
while ((PointerPde->u.Hard.Valid == 0) ||
(PointerPte->u.Hard.Valid == 0))
{
Modified: trunk/reactos/ntoskrnl/mm/ARM3/mminit.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/mminit.c?…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/mminit.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/mminit.c [iso-8859-1] Mon Jul 26 21:45:42 2010
@@ -153,6 +153,7 @@
PVOID MiSystemViewStart;
SIZE_T MmSystemViewSize;
+#if (_MI_PAGING_LEVELS == 2)
//
// A copy of the system page directory (the page directory associated with the
// System process) is kept (double-mapped) by the manager in order to lazily
@@ -161,6 +162,7 @@
//
PFN_NUMBER MmSystemPageDirectory[PD_COUNT];
PMMPTE MmSystemPagePtes;
+#endif
//
// The system cache starts right after hyperspace. The first few pages are for
@@ -228,6 +230,9 @@
/* And these store the respective highest PTE/PDE address */
PMMPTE MiHighestUserPte;
PMMPDE MiHighestUserPde;
+#if (_MI_PAGING_LEVELS >= 3)
+/* We need the highest PPE and PXE addresses */
+#endif
/* These variables define the system cache address space */
PVOID MmSystemCacheStart;
@@ -1476,7 +1481,7 @@
PFN_NUMBER PageFrameIndex;
KIRQL OldIrql;
ULONG Size, BitMapSize;
-
+#if (_MI_PAGING_LEVELS == 2)
//
// Get the page frame number for the system page directory
//
@@ -1502,7 +1507,7 @@
ASSERT(PD_COUNT == 1);
TempPte.u.Hard.PageFrameNumber = MmSystemPageDirectory[0];
MI_WRITE_VALID_PTE(PointerPte, TempPte);
-
+#endif
//
// Let's get back to paged pool work: size it up.
// By default, it should be twice as big as nonpaged pool.
@@ -1554,6 +1559,14 @@
// So now get the PDE for paged pool and zero it out
//
PointerPde = MiAddressToPde(MmPagedPoolStart);
+
+#if (_MI_PAGING_LEVELS >= 3)
+ /* On these systems, there's no double-mapping, so instead, the PPE and PXEs
+ * are setup to span the entire paged pool area, so there's no need for the
+ * system PD */
+ ASSERT(FALSE);
+#endif
+
RtlZeroMemory(PointerPde,
(1 + MiAddressToPde(MmPagedPoolEnd) - PointerPde) * sizeof(MMPTE));
@@ -1573,7 +1586,14 @@
PageFrameIndex = MiRemoveZeroPage(0);
TempPte.u.Hard.PageFrameNumber = PageFrameIndex;
MI_WRITE_VALID_PTE(PointerPde, TempPte);
-
+#if (_MI_PAGING_LEVELS >= 3)
+ /* Use the PPE of MmPagedPoolStart that was setup above */
+// Bla = PFN_FROM_PTE(PpeAddress(MmPagedPool...));
+ ASSERT(FALSE);
+#else
+ /* Do it this way */
+// Bla = MmSystemPageDirectory[(PointerPde - (PMMPTE)PDE_BASE) / PDE_COUNT]
+#endif
/* Initialize the PFN entry for it */
MiInitializePfnForOtherProcess(PageFrameIndex,
PointerPde,
@@ -1700,7 +1720,10 @@
/* Highest PTE and PDE based on the addresses above */
MiHighestUserPte = MiAddressToPte(MmHighestUserAddress);
MiHighestUserPde = MiAddressToPde(MmHighestUserAddress);
-
+#if (_MI_PAGING_LEVELS >= 3)
+ /* We need the highest PPE and PXE addresses */
+ ASSERT(FALSE);
+#endif
//
// Get the size of the boot loader's image allocations and then round
// that region up to a PDE size, so that any PDEs we might create for
Modified: trunk/reactos/ntoskrnl/mm/ARM3/pagfault.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/pagfault.…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/pagfault.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/pagfault.c [iso-8859-1] Mon Jul 26 21:45:42 2010
@@ -463,7 +463,11 @@
//
PointerPte = MiAddressToPte(Address);
PointerPde = MiAddressToPde(Address);
-
+#if (_MI_PAGING_LEVELS >= 3)
+ /* We need the PPE and PXE addresses */
+ ASSERT(FALSE);
+#endif
+
//
// Check for dispatch-level snafu
//
@@ -488,6 +492,11 @@
//
if (Mode == UserMode) return STATUS_ACCESS_VIOLATION;
+#if (_MI_PAGING_LEVELS >= 3)
+ /* Need to check PXE and PDE validity */
+ ASSERT(FALSE);
+#endif
+
//
// Is the PDE valid?
//
@@ -497,12 +506,12 @@
// Debug spew (eww!)
//
DPRINT("Invalid PDE\n");
-
+#if (_MI_PAGING_LEVELS == 2)
//
// Handle mapping in "Special" PDE directoreis
//
MiCheckPdeForPagedPool(Address);
-
+#endif
//
// Now we SHOULD be good
//
@@ -556,7 +565,7 @@
// This might happen...not sure yet
//
DPRINT1("FAULT ON PAGE TABLES: %p %lx %lx!\n", Address,
*PointerPte, *PointerPde);
-
+#if (_MI_PAGING_LEVELS == 2)
//
// Map in the page table
//
@@ -565,7 +574,7 @@
DPRINT1("PAGE TABLES FAULTED IN!\n");
return STATUS_SUCCESS;
}
-
+#endif
//
// Otherwise the page table doesn't actually exist
//
@@ -650,6 +659,11 @@
/* Lock the working set */
MiLockProcessWorkingSet(CurrentProcess, CurrentThread);
+#if (_MI_PAGING_LEVELS >= 3)
+ /* Need to check/handle PPE and PXE validity too */
+ ASSERT(FALSE);
+#endif
+
/* First things first, is the PDE valid? */
ASSERT(PointerPde != MiAddressToPde(PTE_BASE));
ASSERT(PointerPde->u.Hard.LargePage == 0);
@@ -679,6 +693,10 @@
/* We should come back with APCs enabled, and with a valid PDE */
ASSERT(KeAreAllApcsDisabled() == TRUE);
+#if (_MI_PAGING_LEVELS >= 3)
+ /* Need to check/handle PPE and PXE validity too */
+ ASSERT(FALSE);
+#endif
ASSERT(PointerPde->u.Hard.Valid == 1);
}
Modified: trunk/reactos/ntoskrnl/mm/ARM3/pool.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/pool.c?re…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/pool.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/pool.c [iso-8859-1] Mon Jul 26 21:45:42 2010
@@ -329,14 +329,16 @@
/* Request a page */
PageFrameNumber = MiRemoveAnyPage(0);
TempPte.u.Hard.PageFrameNumber = PageFrameNumber;
-
+
+#if (_MI_PAGING_LEVELS >= 3)
+ /* On PAE/x64 systems, there's no double-buffering */
+ ASSERT(FALSE);
+#else
//
// Save it into our double-buffered system page directory
//
-#ifndef _M_AMD64
/* This seems to be making the assumption that one PDE is one page long
*/
C_ASSERT(PAGE_SIZE == (PD_COUNT * (sizeof(MMPTE) * PDE_COUNT)));
-#endif
MmSystemPagePtes[(ULONG_PTR)PointerPte & (PAGE_SIZE - 1) /
sizeof(MMPTE)] = TempPte;
@@ -347,7 +349,7 @@
/* Write the actual PTE now */
MI_WRITE_VALID_PTE(PointerPte++, TempPte);
-
+#endif
//
// Move on to the next expansion address
//