From 475b0fd7cb55b963b206d9eddcbfbb2e3bd88748 Mon Sep 17 00:00:00 2001
From: ReactOS Portable Systems Group <ros-arm-bringup@svn.reactos.org>
Date: Sat, 2 Jan 2010 04:50:08 +0000
Subject: [PATCH] NMI Support Patch 13:     [NMIDEBUG]: Add new NMI Debug
 driver. It registers an NMI callback on startup. The callback does nothing
 useful at the moment, but you can enhance it to add all sorts of debugging
 information that would otherwise be unavailable in situations such as an
 interrupt storm, IRQL hang, etc. When you send an NMI, such as by using QEMU,
 you should see the driver print a string.

svn path=/trunk/; revision=44878
---
 reactos/drivers/base/directory.rbuild         |  3 ++
 reactos/drivers/base/nmidebug/nmidebug.c      | 49 +++++++++++++++++++
 reactos/drivers/base/nmidebug/nmidebug.rbuild |  9 ++++
 reactos/drivers/base/nmidebug/nmidebug.rc     | 11 +++++
 4 files changed, 72 insertions(+)
 create mode 100644 reactos/drivers/base/nmidebug/nmidebug.c
 create mode 100644 reactos/drivers/base/nmidebug/nmidebug.rbuild
 create mode 100644 reactos/drivers/base/nmidebug/nmidebug.rc

diff --git a/reactos/drivers/base/directory.rbuild b/reactos/drivers/base/directory.rbuild
index e02425c92ea..697234e37a6 100644
--- a/reactos/drivers/base/directory.rbuild
+++ b/reactos/drivers/base/directory.rbuild
@@ -20,4 +20,7 @@
 <directory name="null">
 	<xi:include href="null/null.rbuild" />
 </directory>
+<directory name="nmidebug">
+	<xi:include href="nmidebug/nmidebug.rbuild" />
+</directory>
 </group>
diff --git a/reactos/drivers/base/nmidebug/nmidebug.c b/reactos/drivers/base/nmidebug/nmidebug.c
new file mode 100644
index 00000000000..875b92c1e15
--- /dev/null
+++ b/reactos/drivers/base/nmidebug/nmidebug.c
@@ -0,0 +1,49 @@
+/*
+ * PROJECT:         ReactOS NMI Debug Driver
+ * LICENSE:         BSD - See COPYING.ARM in the top level directory
+ * FILE:            drivers/base/nmidebug/nmidebug.c
+ * PURPOSE:         Driver Code
+ * PROGRAMMERS:     ReactOS Portable Systems Group
+ */
+
+/* INCLUDES *******************************************************************/
+
+#include <ntddk.h>
+
+/* FUNCTIONS ******************************************************************/
+
+BOOLEAN
+NTAPI
+NmiDbgCallback(IN PVOID Context,
+               IN BOOLEAN Handled)
+{
+    //
+    // Let the user know we are alive
+    //         
+    DbgPrint("NMI Callback entered! Letting the system crash...\n");
+
+    //
+    // Do not handle the NMI
+    //
+    return FALSE;
+}
+     
+NTSTATUS
+NTAPI
+DriverEntry(IN PDRIVER_OBJECT DriverObject,
+            IN PUNICODE_STRING RegistryPath)
+{
+    PAGED_CODE();
+
+    //
+    // Register NMI callback
+    //
+    KeRegisterNmiCallback(&NmiDbgCallback, NULL);
+
+    //
+    // Return success
+    //
+    return STATUS_SUCCESS;
+}
+
+/* EOF */
diff --git a/reactos/drivers/base/nmidebug/nmidebug.rbuild b/reactos/drivers/base/nmidebug/nmidebug.rbuild
new file mode 100644
index 00000000000..5447a4a10d5
--- /dev/null
+++ b/reactos/drivers/base/nmidebug/nmidebug.rbuild
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<!DOCTYPE module SYSTEM "../../../tools/rbuild/project.dtd">
+<module name="nmidebug" type="kernelmodedriver" installbase="system32/drivers" installname="nmidebug.sys">
+	<include base="null">.</include>
+	<library>ntoskrnl</library>
+	<library>hal</library>
+	<file>nmidebug.c</file>
+	<file>nmidebug.rc</file>
+</module>
diff --git a/reactos/drivers/base/nmidebug/nmidebug.rc b/reactos/drivers/base/nmidebug/nmidebug.rc
new file mode 100644
index 00000000000..f77708f3552
--- /dev/null
+++ b/reactos/drivers/base/nmidebug/nmidebug.rc
@@ -0,0 +1,11 @@
+#include <winver.h>
+#include <ntverp.h>
+
+#define	VER_FILETYPE	            VFT_DRV
+#define	VER_FILESUBTYPE	            VFT2_DRV_SYSTEM
+#define VER_FILEDESCRIPTION_STR     "NMI debug driver"
+#define VER_INTERNALNAME_STR        "NMIDEBUG.SYS"
+#define VER_ORIGINALFILENAME_STR    "NMIDEBUG.SYS"
+#define VER_LANGNEUTRAL
+
+#include "common.ver"