xnu-792.tar.gz

[apple/xnu.git] / osfmk / i386 / io_emulate.c

diff --git a/osfmk/i386/io_emulate.c b/osfmk/i386/io_emulate.c
index f381088c72ec920f67c3c94c5dc6cc8e0076f0f3..f9ed656d5c4f5281bde3e9610b62b7765e635a43 100644 (file)
--- a/osfmk/i386/io_emulate.c
+++ b/osfmk/i386/io_emulate.c
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
  * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -54,7 +51,6 @@
  */
 
 #include <platforms.h>
-#include <cpus.h>
 #include <mach/boolean.h>
 #include <mach/port.h>
 #include <kern/thread.h>
@@ -71,13 +67,13 @@
 #include <i386/io_emulate.h>
 #include <i386/iopb_entries.h>
 
+#if 1
 int
 emulate_io(
-       struct i386_saved_state *regs,
-       int                     opcode,
-       int                     io_port)
+       __unused struct i386_saved_state        *regs,
+       __unused int                            opcode,
+       __unused int                            io_port)
 {
-#if 1
        /* At the moment, we are not allowing I/O emulation 
         *
         * FIXME - this should probably change due to 
@@ -85,7 +81,14 @@ emulate_io(
         */
 
        return EM_IO_ERROR;
+}
 #else
+int
+emulate_io(
+       struct i386_saved_state *regs,
+       int                     opcode,
+       int                     io_port)
+{
        thread_t        thread = current_thread();
        at386_io_lock_state();
 
@@ -136,8 +139,8 @@ emulate_io(
         * Make the thread use its IO_TSS to get the IO permissions;
         * it may not have had one before this.
         */
-       act_machine_switch_pcb(thread->top_act);
+       act_machine_switch_pcb(thread);
 
        return EM_IO_RETRY;
-#endif
 }
+#endif