osfmk/x86_64/lowmem_vectors.c

   1 /*
   2  * Copyright (c) 2000-2011 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 /*
  30  * @OSF_COPYRIGHT@
  31  */
  32 /*
  33  * Mach Operating System
  34  * Copyright (c) 1991,1990 Carnegie Mellon University
  35  * All Rights Reserved.
  36  *
  37  * Permission to use, copy, modify and distribute this software and its
  38  * documentation is hereby granted, provided that both the copyright
  39  * notice and this permission notice appear in all copies of the
  40  * software, derivative works or modified versions, and any portions
  41  * thereof, and that both notices appear in supporting documentation.
  42  *
  43  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  44  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  45  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  46  *
  47  * Carnegie Mellon requests users of this software to return to
  48  *
  49  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  50  *  School of Computer Science
  51  *  Carnegie Mellon University
  52  *  Pittsburgh PA 15213-3890
  53  *
  54  * any improvements or extensions that they make and grant Carnegie Mellon
  55  * the rights to redistribute these changes.
  56  */
  57
  58 #include <mach_kdp.h>
  59 #include <mach/vm_param.h>
  60 #include <x86_64/lowglobals.h>
  61
  62 /*
  63  * on x86_64 the low mem vectors live here and get mapped to 0xffffff8000002000 at
  64  * system startup time
  65  */
  66
  67 extern void     *version;
  68 extern void     *kmod;
  69 extern void     *kdp_trans_off;
  70 extern void     *kdp_read_io;
  71 extern void     *osversion;
  72 extern void     *flag_kdp_trigger_reboot;
  73 extern void     *manual_pkt;
  74 extern void     *kdp_jtag_coredump;
  75
  76 lowglo lowGlo __attribute__ ((aligned(PAGE_SIZE))) = {
  77         .lgVerCode              = { 'C', 'a', 't', 'f', 'i', 's', 'h', ' ' },
  78
  79         .lgVersion              = (uint64_t) &version,
  80
  81         .lgKmodptr              = (uint64_t) &kmod,
  82
  83 #if MACH_KDP
  84         .lgTransOff             = (uint64_t) &kdp_trans_off,
  85         .lgReadIO               = (uint64_t) &kdp_read_io,
  86 #else
  87         .lgTransOff             = 0,
  88         .lgReadIO               = 0,
  89 #endif
  90
  91         .lgDevSlot1             = 0,
  92         .lgDevSlot2             = 0,
  93
  94         .lgOSVersion            = (uint64_t) &osversion,
  95
  96 #if MACH_KDP
  97         .lgRebootFlag           = (uint64_t) &flag_kdp_trigger_reboot,
  98         .lgManualPktAddr        = (uint64_t) &manual_pkt,
  99 #else
 100         .lgRebootFlag           = 0,
 101         .lgManualPktAddr        = 0,
 102 #endif
 103         .lgKdpJtagCoredumpAddr  = (uint64_t) &kdp_jtag_coredump
 104 };