xnu-792.12.6.tar.gz

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

diff --git a/osfmk/i386/ldt.c b/osfmk/i386/ldt.c
index 50429cb9225def763598224846c63586d9336ac4..2be6ea4ede1e83c3d129e7a6cd3e0165318082ab 100644 (file)
--- a/osfmk/i386/ldt.c
+++ b/osfmk/i386/ldt.c
@@ -1,26 +1,31 @@
 /*
  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
- * 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
+ * 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.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * 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
- * 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
+ *
+ * The 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.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -58,6 +63,7 @@
  * same LDT.
  */
 #include <i386/seg.h>
+#include <i386/pmap.h>
 #include <mach/i386/vm_types.h>
 #include <mach/i386/vm_param.h>
 
@@ -76,13 +82,31 @@ struct fake_descriptor      ldt[LDTSZ] = {
           ACC_P|ACC_PL_U|ACC_CALL_GATE
         },                             /* call gate for mach rpc */
 /*017*/        { 0,
-         (VM_MAX_ADDRESS-VM_MIN_ADDRESS-1)>>12,
-         SZ_32|SZ_G,
+         0xfffff,
+         SZ_32|SZ_G,
          ACC_P|ACC_PL_U|ACC_CODE_R
        },                              /* user code segment */
 /*01F*/        { 0,
-         (VM_MAX_ADDRESS-VM_MIN_ADDRESS-1)>>12,
+         0xfffff,
          SZ_32|SZ_G,
          ACC_P|ACC_PL_U|ACC_DATA_W
        },                              /* user data segment */
+/*027*/        { 0,
+         0xfffff,
+         SZ_32|SZ_G,
+         ACC_P|ACC_PL_U|ACC_DATA_W
+       },                              /* user cthread segment */
+// Storage space for user ldt entries we will make room for 10 entries initially
+// as we will probably never need many more than that
+/*02F*/        { 0, 0, 0, 0},
+/*037*/        { 0, 0, 0, 0},
+/*03F*/        { 0, 0, 0, 0},
+/*047*/        { 0, 0, 0, 0},
+/*04F*/        { 0, 0, 0, 0},
+/*057*/        { 0, 0, 0, 0},
+/*05F*/        { 0, 0, 0, 0},
+/*067*/        { 0, 0, 0, 0},
+/*06F*/        { 0, 0, 0, 0},
+/*077*/        { 0, 0, 0, 0},
+
 };