]> git.saurik.com Git - apple/xnu.git/blobdiff - osfmk/i386/ktss.c
xnu-3247.1.106.tar.gz
[apple/xnu.git] / osfmk / i386 / ktss.c
index 7f15e92172553ed7292a0320dd0218b0fbda638f..f5d3118f7c447b431b0294172fad19f813d8dd6e 100644 (file)
@@ -1,31 +1,29 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @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 
- * 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 
+ * 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
  * limitations under the License.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  *
  * We don't use the i386 task switch mechanism.  We need a TSS
  * 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.
@@ -113,123 +76,7 @@ struct sysenter_stack master_sstk
        __attribute__ ((section ("__DESC, master_sstk")))
        __attribute__ ((aligned (16)))  = { {0}, 0 };
 
-#ifdef X86_64
 struct x86_64_tss master_ktss64 __attribute__ ((aligned (4096))) = {
        .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 */