1/* 2 * Copyright (c) 2009 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 44static inline 45void 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#define pal_switch_pmap(t,u,v) 58 59#define panic_display_pal_info() do { } while(0) 60#define pal_kernel_announce() do { } while(0) 61 62#define PAL_AICPM_PROPERTY_VALUE 0 63 64#define pal_pmc_swi() __asm__ __volatile__("int %0"::"i"(LAPIC_PMC_SWI_VECTOR):"memory") 65 66/* Macro used by non-native xnus for access to low globals when it may 67 * have moved. 68 */ 69#define PAL_KDP_ADDR(x) (x) 70 71struct pal_rtc_nanotime { 72 volatile uint64_t tsc_base; /* timestamp */ 73 volatile uint64_t ns_base; /* nanoseconds */ 74 uint32_t scale; /* tsc -> nanosec multiplier */ 75 uint32_t shift; /* shift is nonzero only on "slow" machines, */ 76 /* ie where tscFreq <= SLOW_TSC_THRESHOLD */ 77 volatile uint32_t generation; /* 0 == being updated */ 78 uint32_t spare1; 79}; 80 81 82#ifdef MACH_KERNEL_PRIVATE 83 84struct pal_cpu_data { 85 86}; 87 88struct pal_pcb { 89 90}; 91 92struct pal_apic_table { 93 94}; 95 96#endif /* MACH_KERNEL_PRIVATE */ 97 98#endif /* XNU_KERNEL_PRIVATE */ 99 100#endif /* _I386_PAL_I386_H */ 101