Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / reactos / ntoskrnl / kd / amd64 / kdmemsup.c

diff --git a/reactos/ntoskrnl/kd/amd64/kdmemsup.c b/reactos/ntoskrnl/kd/amd64/kdmemsup.c
deleted file mode 100644 (file)
index 75f19a1..0000000
--- a/reactos/ntoskrnl/kd/amd64/kdmemsup.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- * COPYRIGHT:       See COPYING in the top level directory
- * PROJECT:         ReactOS Kernel
- * FILE:            ntoskrnl/kd/amd64/kdmemsup.c
- * PURPOSE:         Kernel Debugger Safe Memory Support
- *
- * PROGRAMMERS:     arty
- */
-
-#include <ntoskrnl.h>
-#define NDEBUG
-#include <debug.h>
-
-#define HIGH_PHYS_MASK 0x80000000
-#define PAGE_TABLE_MASK 0x3ff
-#define BIG_PAGE_SIZE (1<<22)
-#define CR4_PAGE_SIZE_BIT 0x10
-#define PDE_PRESENT_BIT 0x01
-#define PDE_W_BIT 0x02
-#define PDE_PWT_BIT 0x08
-#define PDE_PCD_BIT 0x10
-#define PDE_ACCESSED_BIT 0x20
-#define PDE_DIRTY_BIT 0x40
-#define PDE_PS_BIT 0x80
-
-#define MI_KDBG_TMP_PAGE_1 (HYPER_SPACE + 0x400000 - PAGE_SIZE)
-#define MI_KDBG_TMP_PAGE_0 (MI_KDBG_TMP_PAGE_1 - PAGE_SIZE)
-
-/* VARIABLES ***************************************************************/
-
-static BOOLEAN KdpPhysAccess = FALSE;
-
-static
-ULONG_PTR
-KdpPhysMap(ULONG_PTR PhysAddr, LONG Len)
-{
-    MMPTE TempPte;
-    PMMPTE PointerPte;
-    ULONG_PTR VirtAddr;
-
-    TempPte.u.Long = PDE_PRESENT_BIT | PDE_W_BIT | PDE_PWT_BIT |
-                     PDE_PCD_BIT | PDE_ACCESSED_BIT | PDE_DIRTY_BIT;
-
-    if ((PhysAddr & (PAGE_SIZE - 1)) + Len > PAGE_SIZE)
-    {
-        TempPte.u.Hard.PageFrameNumber = (PhysAddr >> PAGE_SHIFT) + 1;
-        PointerPte = MiAddressToPte((PVOID)MI_KDBG_TMP_PAGE_1);
-        *PointerPte = TempPte;
-        VirtAddr = (ULONG_PTR)PointerPte << 10;
-        KeInvalidateTlbEntry((PVOID)VirtAddr);
-    }
-
-    TempPte.u.Hard.PageFrameNumber = PhysAddr >> PAGE_SHIFT;
-    PointerPte = MiAddressToPte((PVOID)MI_KDBG_TMP_PAGE_0);
-    *PointerPte = TempPte;
-    VirtAddr = (ULONG_PTR)PointerPte << 10;
-    KeInvalidateTlbEntry((PVOID)VirtAddr);
-
-    return VirtAddr + (PhysAddr & (PAGE_SIZE - 1));
-}
-
-static
-ULONGLONG
-KdpPhysRead(ULONG_PTR PhysAddr, LONG Len)
-{
-    ULONG_PTR Addr;
-    ULONGLONG Result = 0;
-
-    Addr = KdpPhysMap(PhysAddr, Len);
-
-    switch (Len)
-    {
-    case 8:
-        Result = *((PULONGLONG)Addr);
-        break;
-    case 4:
-        Result = *((PULONG)Addr);
-        break;
-    case 2:
-        Result = *((PUSHORT)Addr);
-        break;
-    case 1:
-        Result = *((PUCHAR)Addr);
-        break;
-    }
-
-    return Result;
-}
-
-static
-VOID
-KdpPhysWrite(ULONG_PTR PhysAddr, LONG Len, ULONGLONG Value)
-{
-    ULONG_PTR Addr;
-
-    Addr = KdpPhysMap(PhysAddr, Len);
-
-    switch (Len)
-    {
-    case 8:
-        *((PULONGLONG)Addr) = Value;
-        break;
-    case 4:
-        *((PULONG)Addr) = Value;
-        break;
-    case 2:
-        *((PUSHORT)Addr) = Value;
-        break;
-    case 1:
-        *((PUCHAR)Addr) = Value;
-        break;
-    }
-}
-
-BOOLEAN
-NTAPI
-KdpTranslateAddress(ULONG_PTR Addr, PULONG_PTR ResultAddr)
-{
-    ULONG_PTR CR3Value = __readcr3();
-    ULONG_PTR CR4Value = __readcr4();
-    ULONG_PTR PageDirectory = (CR3Value & ~(PAGE_SIZE-1)) +
-        ((Addr >> 22) * sizeof(ULONG));
-    ULONG_PTR PageDirectoryEntry = KdpPhysRead(PageDirectory, sizeof(ULONG));
-
-    /* Not present -> fail */
-    if (!(PageDirectoryEntry & PDE_PRESENT_BIT))
-    {
-        return FALSE;
-    }
-
-    /* Big Page? */
-    if ((PageDirectoryEntry & PDE_PS_BIT) && (CR4Value & CR4_PAGE_SIZE_BIT))
-    {
-        *ResultAddr = (PageDirectoryEntry & ~(BIG_PAGE_SIZE-1)) +
-            (Addr & (BIG_PAGE_SIZE-1));
-        return TRUE;
-    }
-    else
-    {
-        ULONG_PTR PageTableAddr =
-            (PageDirectoryEntry & ~(PAGE_SIZE-1)) +
-            ((Addr >> PAGE_SHIFT) & PAGE_TABLE_MASK) * sizeof(ULONG);
-        ULONG_PTR PageTableEntry = KdpPhysRead(PageTableAddr, sizeof(ULONG));
-        if (PageTableEntry & PDE_PRESENT_BIT)
-        {
-            *ResultAddr = (PageTableEntry & ~(PAGE_SIZE-1)) +
-                (Addr & (PAGE_SIZE-1));
-            return TRUE;
-        }
-    }
-
-    return FALSE;
-}
-
-BOOLEAN
-NTAPI
-KdpSafeReadMemory(ULONG_PTR Addr, LONG Len, PVOID Value)
-{
-    ULONG_PTR ResultPhysAddr;
-
-    if (!KdpPhysAccess)
-    {
-        memcpy(Value, (PVOID)Addr, Len);
-        return TRUE;
-    }
-
-    memset(Value, 0, Len);
-
-    if (!KdpTranslateAddress(Addr, &ResultPhysAddr))
-        return FALSE;
-
-    switch (Len)
-    {
-    case 8:
-        *((PULONGLONG)Value) = KdpPhysRead(ResultPhysAddr, Len);
-        break;
-    case 4:
-        *((PULONG)Value) = KdpPhysRead(ResultPhysAddr, Len);
-        break;
-    case 2:
-        *((PUSHORT)Value) = KdpPhysRead(ResultPhysAddr, Len);
-        break;
-    case 1:
-        *((PUCHAR)Value) = KdpPhysRead(ResultPhysAddr, Len);
-        break;
-    }
-
-    return TRUE;
-}
-
-BOOLEAN
-NTAPI
-KdpSafeWriteMemory(ULONG_PTR Addr, LONG Len, ULONGLONG Value)
-{
-    ULONG_PTR ResultPhysAddr;
-
-    if (!KdpPhysAccess)
-    {
-        memcpy((PVOID)Addr, &Value, Len);
-        return TRUE;
-    }
-
-    if (!KdpTranslateAddress(Addr, &ResultPhysAddr))
-        return FALSE;
-
-    KdpPhysWrite(ResultPhysAddr, Len, Value);
-    return TRUE;
-}
-
-VOID
-NTAPI
-KdpEnableSafeMem(VOID)
-{
-    KdpPhysAccess = TRUE;
-}
-
-/* EOF */