- Create device instance key for root device node.

- Add DeviceReference value for each non-root device node.

svn path=/trunk/; revision=15796

reactos/ntoskrnl/include/internal/io.h

@@ -16,8 +16,7 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/* $Id$
+/*
- *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
  * FILE:            include/internal/io.h
@@ -340,6 +339,9 @@ extern ULONGLONG IoOtherTransferCount;
 VOID
 PnpInit(VOID);
 
+VOID
+PnpInit2(VOID);
+
 VOID
 IopInitDriverImplementation(VOID);
 

reactos/ntoskrnl/io/iomgr.c

@@ -325,6 +325,8 @@ IoInit2(BOOLEAN BootLog)
   MODULE_OBJECT ModuleObject;
   NTSTATUS Status;
 
+  PnpInit2();
+
   IoCreateDriverList();
 
   KeInitializeSpinLock (&IoStatisticsLock);

reactos/ntoskrnl/io/pnpmgr.c

@@ -1,5 +1,4 @@
-/* $Id$
+/*
- *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
  * FILE:            ntoskrnl/io/pnpmgr.c
@@ -893,6 +892,39 @@ IopSetDeviceInstanceData(HANDLE InstanceKey,
     ZwClose(LogConfKey);
   }
 
+  if (DeviceNode->PhysicalDeviceObject != NULL)
+  {
+    /* Create the 'Control' key */
+    RtlInitUnicodeString(&KeyName,
+		         L"Control");
+    InitializeObjectAttributes(&ObjectAttributes,
+			       &KeyName,
+			       OBJ_CASE_INSENSITIVE | OBJ_OPENIF,
+			       InstanceKey,
+			       NULL);
+    Status = ZwCreateKey(&LogConfKey,
+		         KEY_ALL_ACCESS,
+		         &ObjectAttributes,
+		         0,
+		         NULL,
+		         REG_OPTION_VOLATILE,
+		         NULL);
+    if (NT_SUCCESS(Status))
+    {
+      ULONG Reference = (ULONG)DeviceNode->PhysicalDeviceObject;
+      RtlInitUnicodeString(&KeyName,
+			   L"DeviceReference");
+      Status = ZwSetValueKey(LogConfKey,
+			     &KeyName,
+			     0,
+			     REG_DWORD,
+			     &Reference,
+			     sizeof(PVOID));
+
+      ZwClose(LogConfKey);
+    }
+  }
+
   DPRINT("IopSetDeviceInstanceData() done\n");
 
   return STATUS_SUCCESS;
@@ -1818,7 +1850,8 @@ IopInitializePnpServices(
          DeviceNode,
          IopActionInitBootServices,
          DeviceNode);
-   } else
+   }
+   else
    {
       IopInitDeviceTreeTraverseContext(
          &Context,
@@ -1981,6 +2014,35 @@ IopInvalidateDeviceRelations(
 }
 
 
+static NTSTATUS INIT_FUNCTION
+IopSetRootDeviceInstanceData(PDEVICE_NODE DeviceNode)
+{
+    PWSTR KeyBuffer;
+    HANDLE InstanceKey = NULL;
+    NTSTATUS Status;
+
+    /* Create registry key for the instance id, if it doesn't exist yet */
+    KeyBuffer = ExAllocatePool(PagedPool,
+                               (49 * sizeof(WCHAR)) + DeviceNode->InstancePath.Length);
+    wcscpy(KeyBuffer, L"\\Registry\\Machine\\System\\CurrentControlSet\\Enum\\");
+    wcscat(KeyBuffer, DeviceNode->InstancePath.Buffer);
+    Status = IopCreateDeviceKeyPath(KeyBuffer,
+                                    &InstanceKey);
+    ExFreePool(KeyBuffer);
+    if (!NT_SUCCESS(Status))
+    {
+        DPRINT1("Failed to create the instance key! (Status %lx)\n", Status);
+        return Status;
+    }
+
+    /* FIXME: Set 'ConfigFlags' value */
+
+    ZwClose(InstanceKey);
+
+    return Status;
+}
+
+
 VOID INIT_FUNCTION
 PnpInit(VOID)
 {
@@ -2026,7 +2088,7 @@ PnpInit(VOID)
    }
 
    if (!IopCreateUnicodeString(&IopRootDeviceNode->InstancePath,
-       L"HTREE\\Root\\0",
+       L"HTREE\\ROOT\\0",
        PagedPool))
    {
      CPRINT("Failed to create the instance path!\n");
@@ -2044,4 +2106,19 @@ PnpInit(VOID)
       IopRootDeviceNode->PhysicalDeviceObject);
 }
 
+
+VOID INIT_FUNCTION
+PnpInit2(VOID)
+{
+    NTSTATUS Status;
+
+    /* Set root device instance data */
+    Status = IopSetRootDeviceInstanceData(IopRootDeviceNode);
+    if (!NT_SUCCESS(Status))
+    {
+        CPRINT("Failed to set instance data\n");
+        KEBUGCHECKEX(PHASE1_INITIALIZATION_FAILED, Status, 0, 0, 0);
+    }
+}
+
 /* EOF */