From: Jack Lange <jarusl@cs.northwestern.edu>
Date: Wed, 4 Feb 2009 20:01:47 +0000 (-0600)
Subject: added os_debug device
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=6f8b30059c9ffdde7196610bcc264793c190b4b3;p=palacios.releases.git

added os_debug device
---

diff --git a/palacios/include/devices/os_debug.h b/palacios/include/devices/os_debug.h
new file mode 100644
index 0000000..5434492
--- /dev/null
+++ b/palacios/include/devices/os_debug.h
@@ -0,0 +1,32 @@
+/* 
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#ifndef __DEVICES_OS_DEBUG_H__
+#define __DEVICES_OS_DEBUG_H__
+
+#ifdef __V3VEE__
+
+#include <palacios/vm_dev.h>
+
+struct vm_device * v3_create_os_debug();
+
+
+#endif // ! __V3VEE__
+
+#endif
diff --git a/palacios/src/devices/os_debug.c b/palacios/src/devices/os_debug.c
new file mode 100644
index 0000000..2ceac6f
--- /dev/null
+++ b/palacios/src/devices/os_debug.c
@@ -0,0 +1,88 @@
+/* 
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+
+#include <devices/os_debug.h>
+#include <palacios/vmm.h>
+
+
+#define DEBUG_PORT1 0xcc
+
+
+
+
+static int handle_gen_write(ushort_t port, void * src, uint_t length, struct vm_device * dev) {
+  PrintError("OS_DEBUG Write\n");
+
+  switch (length) {
+  case 1:
+    PrintDebug("OS_DEBUG ->0x%.2x\n", *(uchar_t*)src);
+    break;
+  case 2:
+    PrintDebug("OS_DEBUG ->0x%.4x\n", *(ushort_t*)src);
+    break;
+  case 4:
+    PrintDebug("OS_DEBUG ->0x%.8x\n", *(uint_t*)src);
+    break;
+  default:
+    PrintError("OS_DEBUG -> Invalid length in handle_gen_write\n");
+    return -1;
+    break;
+  }
+
+  return length;
+}
+
+
+static int debug_init(struct vm_device * dev) {
+
+  v3_dev_hook_io(dev, DEBUG_PORT1,  NULL, &handle_gen_write);
+
+  
+  return 0;
+}
+
+static int debug_deinit(struct vm_device * dev) {
+  v3_dev_unhook_io(dev, DEBUG_PORT1);
+
+
+  return 0;
+};
+
+
+
+
+static struct vm_device_ops dev_ops = {
+  .init = debug_init,
+  .deinit = debug_deinit,
+  .reset = NULL,
+  .start = NULL,
+  .stop = NULL,
+};
+
+
+struct vm_device * v3_create_os_debug() {
+
+  PrintDebug("Creating OS Debug Device\n");
+  struct vm_device * device = v3_create_device("OS Debug", &dev_ops, NULL);
+
+
+
+  return device;
+}