osfmk/arm/machine_routines_apple.c

   1 /*
   2  * Copyright (c) 2020 Apple 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 #include <pexpert/pexpert.h>
  30 #if __arm64__
  31 #include <pexpert/arm64/board_config.h>
  32 #endif /* __arm64__ */
  33
  34 #include <arm/cpuid_internal.h>
  35 #include <arm/pmap.h>
  36 #include <arm/proc_reg.h>
  37 #include <machine/machine_cpuid.h>
  38 #include <machine/machine_routines.h>
  39
  40
  41 #if __arm64__
  42
  43 void configure_misc_apple_boot_args(void);
  44 void configure_misc_apple_regs(void);
  45
  46 void
  47 configure_misc_apple_boot_args(void)
  48 {
  49 }
  50
  51 void
  52 configure_misc_apple_regs(void)
  53 {
  54 }
  55
  56 #endif /* __arm64__ */
  57
  58 #if HAS_APPLE_PAC
  59
  60
  61 /**
  62  * Returns the default ROP key.
  63  */
  64 uint64_t
  65 ml_default_rop_pid(void)
  66 {
  67         return 0;
  68 }
  69
  70 /**
  71  * Returns the default JOP key.
  72  */
  73 uint64_t
  74 ml_default_jop_pid(void)
  75 {
  76         return 0;
  77 }
  78 #endif /* HAS_APPLE_PAC */