]> git.saurik.com Git - apple/xnu.git/blobdiff - osfmk/i386/ktss.c
xnu-6153.101.6.tar.gz
[apple/xnu.git] / osfmk / i386 / ktss.c
index f0b69591c774c2d458f42af6052e139d2eb4f217..0507cb79123f6c78d18234a81aa274cf1fdd91ff 100644 (file)
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- * 
+ *
  * 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
  * 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,
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
-/* 
+/*
  * Mach Operating System
  * Copyright (c) 1991,1990 Carnegie Mellon University
  * All Rights Reserved.
- * 
+ *
  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
  * software, derivative works or modified versions, and any portions
  * thereof, and that both notices appear in supporting documentation.
- * 
+ *
  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
+ *
  * Carnegie Mellon requests users of this software to return to
- * 
+ *
  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  *  School of Computer Science
  *  Carnegie Mellon University
  *  Pittsburgh PA 15213-3890
- * 
+ *
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */
  * only to hold the kernel stack pointer for the current thread.
  */
 #include <i386/tss.h>
-#include <i386/seg.h>
-#include <mach_kdb.h>
+#include <i386/pmap.h>
 
-struct i386_tss        master_ktss
-       __attribute__ ((section ("__DESC, master_ktss")))
-       __attribute__ ((aligned (4096))) = {
-       0,                              /* back link */
-       0,                              /* esp0 */
-       KERNEL_DS,                      /* ss0 */
-       0,                              /* esp1 */
-       0,                              /* ss1 */
-       0,                              /* esp2 */
-       0,                              /* ss2 */
-       0,                              /* cr3 */
-       0,                              /* eip */
-       0,                              /* eflags */
-       0,                              /* eax */
-       0,                              /* ecx */
-       0,                              /* edx */
-       0,                              /* ebx */
-       0,                              /* esp */
-       0,                              /* ebp */
-       0,                              /* esi */
-       0,                              /* edi */
-       0,                              /* es */
-       0,                              /* cs */
-       0,                              /* ss */
-       0,                              /* ds */
-       0,                              /* fs */
-       0,                              /* gs */
-       KERNEL_LDT,                     /* ldt */
-       0,                              /* trace_trap */
-       0x0FFF                          /* IO bitmap offset -
-                                          beyond end of TSS segment,
-                                          so no bitmap */
-};
 
 /*
  * The transient stack for sysenter.
@@ -107,124 +73,9 @@ struct i386_tss    master_ktss
  * due to a single-step trace trap at system call entry.
  */
 struct sysenter_stack master_sstk
-       __attribute__ ((section ("__DESC, master_sstk")))
-       __attribute__ ((aligned (16)))  = { {0}, 0 };
+__attribute__ ((section("__HIB, __desc")))
+__attribute__ ((aligned(16)))  = { {0}, 0 };
 
-#ifdef X86_64
-struct x86_64_tss master_ktss64 __attribute__ ((aligned (4096))) = {
+struct x86_64_tss master_ktss64 __attribute__ ((aligned(4096))) __attribute__ ((section("__HIB, __desc"))) = {
        .io_bit_map_offset = 0x0FFF,
 };
-#endif /* X86_64 */
-
-/*
- * Task structure for double-fault handler:
- */
-struct i386_tss        master_dftss
-       __attribute__ ((section ("__DESC, master_dftss")))
-       __attribute__ ((aligned (4096))) = {
-       0,                              /* back link */
-       (int) &df_task_stack_end - 4,   /* esp0 */
-       KERNEL_DS,                      /* ss0 */
-       0,                              /* esp1 */
-       0,                              /* ss1 */
-       0,                              /* esp2 */
-       0,                              /* ss2 */
-       0,                              /* cr3 */
-       (int) &df_task_start,           /* eip */
-       0,                              /* eflags */
-       0,                              /* eax */
-       0,                              /* ecx */
-       0,                              /* edx */
-       0,                              /* ebx */
-       (int) &df_task_stack_end - 4,   /* esp */
-       0,                              /* ebp */
-       0,                              /* esi */
-       0,                              /* edi */
-       KERNEL_DS,                      /* es */
-       KERNEL_CS,                      /* cs */
-       KERNEL_DS,                      /* ss */
-       KERNEL_DS,                      /* ds */
-       KERNEL_DS,                      /* fs */
-       CPU_DATA_GS,                    /* gs */
-       KERNEL_LDT,                     /* ldt */
-       0,                              /* trace_trap */
-       0x0FFF                          /* IO bitmap offset -
-                                          beyond end of TSS segment,
-                                          so no bitmap */
-};
-
-
-/*
- * Task structure for machine_check handler:
- */
-struct i386_tss        master_mctss
-       __attribute__ ((section ("__DESC, master_mctss")))
-       __attribute__ ((aligned (4096))) = {
-       0,                              /* back link */
-       (int) &mc_task_stack_end - 4,   /* esp0 */
-       KERNEL_DS,                      /* ss0 */
-       0,                              /* esp1 */
-       0,                              /* ss1 */
-       0,                              /* esp2 */
-       0,                              /* ss2 */
-       0,                              /* cr3 */
-       (int) &mc_task_start,           /* eip */
-       0,                              /* eflags */
-       0,                              /* eax */
-       0,                              /* ecx */
-       0,                              /* edx */
-       0,                              /* ebx */
-       (int) &mc_task_stack_end - 4,   /* esp */
-       0,                              /* ebp */
-       0,                              /* esi */
-       0,                              /* edi */
-       KERNEL_DS,                      /* es */
-       KERNEL_CS,                      /* cs */
-       KERNEL_DS,                      /* ss */
-       KERNEL_DS,                      /* ds */
-       KERNEL_DS,                      /* fs */
-       CPU_DATA_GS,                    /* gs */
-       KERNEL_LDT,                     /* ldt */
-       0,                              /* trace_trap */
-       0x0FFF                          /* IO bitmap offset -
-                                          beyond end of TSS segment,
-                                          so no bitmap */
-};
-
-#if    MACH_KDB
-
-struct i386_tss        master_dbtss
-       __attribute__ ((section ("__DESC, master_dbtss")))
-       __attribute__ ((aligned (4096))) = {
-       0,                              /* back link */
-       0,                              /* esp0 */
-       KERNEL_DS,                      /* ss0 */
-       0,                              /* esp1 */
-       0,                              /* ss1 */
-       0,                              /* esp2 */
-       0,                              /* ss2 */
-       0,                              /* cr3 */
-       0,                              /* eip */
-       0,                              /* eflags */
-       0,                              /* eax */
-       0,                              /* ecx */
-       0,                              /* edx */
-       0,                              /* ebx */
-       0,                              /* esp */
-       0,                              /* ebp */
-       0,                              /* esi */
-       0,                              /* edi */
-       KERNEL_DS,                      /* es */
-       KERNEL_CS,                      /* cs */
-       KERNEL_DS,                      /* ss */
-       KERNEL_DS,                      /* ds */
-       KERNEL_DS,                      /* fs */
-       KERNEL_DS,                      /* gs */
-       KERNEL_LDT,                     /* ldt */
-       0,                              /* trace_trap */
-       0x0FFF                          /* IO bitmap offset -
-                                          beyond end of TSS segment,
-                                          so no bitmap */
-};
-
-#endif /* MACH_KDB */