osfmk/i386/pal_native.h

   1 /*
   2  * Copyright (c) 2009-2016 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 #ifndef _I386_PAL_I386_H
  29 #define _I386_PAL_I386_H
  30
  31 #ifdef XNU_KERNEL_PRIVATE
  32
  33 /* No-op on bare-metal */
  34 #define pal_dbg_page_fault(x, y, z)
  35 #define pal_dbg_set_task_name( x )
  36 #define pal_set_signal_delivery( x )
  37
  38 #define pal_is_usable_memory(b, t)      (TRUE)
  39
  40 #define pal_hlt()                       __asm__ volatile ("sti; hlt")
  41 #define pal_sti()                       __asm__ volatile ("sti")
  42 #define pal_cli()                       __asm__ volatile ("cli")
  43
  44 static inline void
  45 pal_stop_cpu(boolean_t cli)
  46 {
  47         if (cli)
  48                 __asm__ volatile ( "cli" );
  49         __asm__ volatile ( "wbinvd; hlt" );
  50 }
  51
  52 #define pal_register_cache_state(t, v)
  53
  54 #define pal_execve_return(t)
  55 #define pal_thread_terminate_self(t)
  56 #define pal_ast_check(t)
  57
  58 #define panic_display_pal_info() do { } while(0)
  59 #define pal_kernel_announce() do { } while(0)
  60
  61 #define PAL_AICPM_PROPERTY_VALUE 0
  62
  63 #define pal_pmc_swi() __asm__ __volatile__("int %0"::"i"(LAPIC_PMC_SWI_VECTOR):"memory")
  64
  65 /* Macro used by non-native xnus for access to low globals when it may
  66  * have moved.
  67  */
  68 #define PAL_KDP_ADDR(x) (x)
  69
  70 struct pal_rtc_nanotime {
  71         volatile uint64_t       tsc_base;       /* timestamp */
  72         volatile uint64_t       ns_base;        /* nanoseconds */
  73         uint32_t                scale;          /* tsc -> nanosec multiplier */
  74         uint32_t                shift;          /* shift is nonzero only on "slow" machines, */
  75                                                 /* ie where tscFreq <= SLOW_TSC_THRESHOLD */
  76         volatile uint32_t       generation;     /* 0 == being updated */
  77         uint32_t                spare1;
  78 };
  79
  80
  81 #ifdef MACH_KERNEL_PRIVATE
  82
  83 struct pal_cpu_data {
  84
  85 };
  86
  87 struct pal_pcb {
  88
  89 };
  90
  91 struct pal_apic_table {
  92
  93 };
  94
  95 #endif /* MACH_KERNEL_PRIVATE */
  96
  97 #endif /* XNU_KERNEL_PRIVATE */
  98
  99 #endif /* _I386_PAL_I386_H */