#include <ntoskrnl.h>
#define NDEBUG
#include <debug.h>
-#include "../ARM3/miarm.h"
+#include <mm/ARM3/miarm.h>
#if defined (ALLOC_PRAGMA)
#pragma alloc_text(INIT, MmInitGlobalKernelPageDirectory)
-#pragma alloc_text(INIT, MiInitPageDirectoryMap)
#endif
+#define ADDR_TO_PDE_OFFSET MiAddressToPdeOffset
+#define ADDR_TO_PAGE_TABLE(v) (((ULONG)(v)) / (1024 * PAGE_SIZE))
/* GLOBALS *****************************************************************/
#define PA_ACCESSED (1 << PA_BIT_ACCESSED)
#define PA_GLOBAL (1 << PA_BIT_GLOBAL)
-#define HYPERSPACE (0xc0400000)
-#define IS_HYPERSPACE(v) (((ULONG)(v) >= HYPERSPACE && (ULONG)(v) < HYPERSPACE + 0x400000))
+#define IS_HYPERSPACE(v) (((ULONG)(v) >= HYPER_SPACE && (ULONG)(v) <= HYPER_SPACE_END))
#define PTE_TO_PFN(X) ((X) >> PAGE_SHIFT)
#define PFN_TO_PTE(X) ((X) << PAGE_SHIFT)
-#if defined(__GNUC__)
-#define PTE_TO_PAGE(X) ((LARGE_INTEGER)(LONGLONG)(PAGE_MASK(X)))
-#else
-__inline LARGE_INTEGER PTE_TO_PAGE(ULONG npage)
-{
- LARGE_INTEGER dummy;
- dummy.QuadPart = (LONGLONG)(PAGE_MASK(npage));
- return dummy;
-}
-#endif
+#define PAGE_MASK(x) ((x)&(~0xfff))
const
ULONG
return(Attributes);
}
-/* Taken from ARM3/pagfault.c */
-FORCEINLINE
-BOOLEAN
-MiSynchronizeSystemPde(PMMPDE PointerPde)
-{
- MMPDE SystemPde;
- ULONG Index;
-
- /* Get the Index from the PDE */
- Index = ((ULONG_PTR)PointerPde & (SYSTEM_PD_SIZE - 1)) / sizeof(MMPTE);
-
- /* Copy the PDE from the double-mapped system page directory */
- SystemPde = MmSystemPagePtes[Index];
- *PointerPde = SystemPde;
-
- /* Make sure we re-read the PDE and PTE */
- KeMemoryBarrierWithoutFence();
-
- /* Return, if we had success */
- return SystemPde.u.Hard.Valid != 0;
-}
-
NTSTATUS
NTAPI
-MiDispatchFault(IN BOOLEAN StoreInstruction,
+MiDispatchFault(IN ULONG FaultCode,
IN PVOID Address,
IN PMMPTE PointerPte,
IN PMMPTE PointerProtoPte,
ASSERT(PointerPde->u.Long == 0);
MI_WRITE_INVALID_PTE(PointerPde, DemandZeroPde);
- Status = MiDispatchFault(TRUE,
+ // Tiny HACK: Parameter 1 is the architecture specific FaultCode for an access violation (i.e. page is present)
+ Status = MiDispatchFault(0x1,
Pt,
PointerPde,
NULL,
VOID
NTAPI
-MmDeleteVirtualMapping(PEPROCESS Process, PVOID Address, BOOLEAN FreePage,
+MmDeleteVirtualMapping(PEPROCESS Process, PVOID Address,
BOOLEAN* WasDirty, PPFN_NUMBER Page)
/*
* FUNCTION: Delete a virtual mapping
ULONG Pte;
PULONG Pt;
- DPRINT("MmDeleteVirtualMapping(%p, %p, %u, %p, %p)\n",
- Process, Address, FreePage, WasDirty, Page);
+ DPRINT("MmDeleteVirtualMapping(%p, %p, %p, %p)\n",
+ Process, Address, WasDirty, Page);
Pt = MmGetPageTableForProcess(Process, Address, FALSE);
}
Pfn = PTE_TO_PFN(Pte);
-
- if (FreePage)
- {
- MmReleasePageMemoryConsumer(MC_SYSTEM, Pfn);
- Pfn = 0;
- }
}
else
{
}
}
-VOID
-NTAPI
-MmEnableVirtualMapping(PEPROCESS Process, PVOID Address)
-{
- PULONG Pt;
- ULONG Pte;
-
- Pt = MmGetPageTableForProcess(Process, Address, FALSE);
- if (Pt == NULL)
- {
- //HACK to get DPH working, waiting for MM rewrite :-/
- //KeBugCheck(MEMORY_MANAGEMENT);
- return;
- }
-
- /* Do not mark a 0 page as present */
- if(0 == InterlockedCompareExchangePte(Pt, 0, 0))
- return;
-
- do
- {
- Pte = *Pt;
- } while (Pte != InterlockedCompareExchangePte(Pt, Pte | PA_PRESENT, Pte));
-
- /* We don't need to flush the TLB here because it
- * won't cache translations for non-present pages */
- MmUnmapPageTable(Pt);
-}
-
BOOLEAN
NTAPI
MmIsPagePresent(PEPROCESS Process, PVOID Address)
/* There should not be anything valid here */
if (Pte != 0)
{
- DPRINT1("Bad PTE %lx\n", Pte);
+ DPRINT1("Bad PTE %lx at %p for %p + %lu\n", Pte, Pt, Address, i);
KeBugCheck(MEMORY_MANAGEMENT);
}