1/* 2 * Copyright (c) 2003-2009 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 29#include <mach/mach_types.h> 30#include <mach/mach_host.h> 31 32#include <kern/host.h> 33#include <kern/processor.h> 34 35#include <i386/cpu_data.h> 36#include <i386/machine_routines.h> 37#include <i386/lapic.h> 38#include <i386/mp.h> 39#include <i386/trap.h> 40#include <mach/i386/syscall_sw.h> 41 42#include <chud/chud_xnu.h> 43 44#if 0 45#pragma mark **** cpu enable/disable **** 46#endif 47 48extern kern_return_t processor_start(processor_t processor); // osfmk/kern/processor.c 49extern kern_return_t processor_exit(processor_t processor); // osfmk/kern/processor.c 50 51__private_extern__ 52kern_return_t chudxnu_enable_cpu(int cpu, boolean_t enable) 53{ 54 chudxnu_unbind_thread(current_thread(), 0); 55 56 if(cpu < 0 || (unsigned int)cpu >= real_ncpus) // sanity check 57 return KERN_FAILURE; 58 59 if((cpu_data_ptr[cpu] != NULL) && cpu != master_cpu) { 60 processor_t processor = cpu_to_processor(cpu); 61 62 if(processor == master_processor) // don't mess with the boot processor 63 return KERN_FAILURE; 64 65 if(enable) { 66 return processor_start(processor); 67 } else { 68 return processor_exit(processor); 69 } 70 } 71 return KERN_FAILURE; 72} 73 74#if 0 75#pragma mark **** perfmon facility **** 76#endif 77 78__private_extern__ kern_return_t 79chudxnu_perfmon_acquire_facility(task_t task __unused) 80{ 81 return KERN_SUCCESS; 82} 83 84__private_extern__ kern_return_t 85chudxnu_perfmon_release_facility(task_t task __unused) 86{ 87 return KERN_SUCCESS; 88} 89 90#if 0 91#pragma mark **** interrupt counters **** 92#endif 93 94__private_extern__ kern_return_t 95chudxnu_get_cpu_interrupt_counters(int cpu, interrupt_counters_t *rupts) 96{ 97 if(cpu < 0 || (unsigned int)cpu >= real_ncpus) { // sanity check 98 return KERN_FAILURE; 99 } 100 101 if(rupts) { 102 boolean_t oldlevel = ml_set_interrupts_enabled(FALSE); 103 cpu_data_t *per_proc; 104 105 per_proc = cpu_data_ptr[cpu]; 106 // For now, we'll call an NMI a 'reset' interrupt 107 rupts->hwResets = per_proc->cpu_hwIntCnt[T_NMI]; 108 rupts->hwMachineChecks = per_proc->cpu_hwIntCnt[T_MACHINE_CHECK]; 109 rupts->hwDSIs = 0; 110 rupts->hwISIs = 0; 111 // we could accumulate 0x20-0x7f, but that'd likely overflow... 112 rupts->hwExternals = 0; 113 // This appears to be wrong. 114 rupts->hwAlignments = 0; //per_proc->cpu_hwIntCnt[0x11]; 115 rupts->hwPrograms = 0; 116 rupts->hwFloatPointUnavailable = per_proc->cpu_hwIntCnt[T_NO_FPU]; 117 // osfmk/i386/mp.h 118 rupts->hwDecrementers = per_proc->cpu_hwIntCnt[LAPIC_VECTOR(TIMER)]; 119 // LAPIC_ERROR == IO ERROR?? 120 rupts->hwIOErrors = per_proc->cpu_hwIntCnt[LAPIC_VECTOR(ERROR)]; 121 122 // accumulate all system call types 123 // osfmk/mach/i386/syscall_sw.h 124 rupts->hwSystemCalls = per_proc->cpu_hwIntCnt[UNIX_INT] + 125 per_proc->cpu_hwIntCnt[MACH_INT] + 126 per_proc->cpu_hwIntCnt[MACHDEP_INT] + 127 per_proc->cpu_hwIntCnt[DIAG_INT]; 128 129 rupts->hwTraces = per_proc->cpu_hwIntCnt[T_DEBUG]; // single steps == traces?? 130 rupts->hwFloatingPointAssists = 0; 131 // osfmk/i386/mp.h 132 rupts->hwPerformanceMonitors = 133 per_proc->cpu_hwIntCnt[LAPIC_VECTOR(PERFCNT)]; 134 rupts->hwAltivecs = 0; 135 rupts->hwInstBreakpoints = per_proc->cpu_hwIntCnt[T_INT3]; 136 rupts->hwSystemManagements = 0; 137 rupts->hwAltivecAssists = 0; 138 rupts->hwThermal = per_proc->cpu_hwIntCnt[LAPIC_VECTOR(THERMAL)]; 139 rupts->hwSoftPatches = 0; 140 rupts->hwMaintenances = 0; 141 // Watchpoint == instrumentation 142 rupts->hwInstrumentations = per_proc->cpu_hwIntCnt[T_WATCHPOINT]; 143 144 ml_set_interrupts_enabled(oldlevel); 145 return KERN_SUCCESS; 146 } else { 147 return KERN_FAILURE; 148 } 149} 150 151__private_extern__ kern_return_t 152chudxnu_clear_cpu_interrupt_counters(int cpu) 153{ 154 if(cpu < 0 || (unsigned int)cpu >= real_ncpus) { // sanity check 155 return KERN_FAILURE; 156 } 157 cpu_data_t *per_proc; 158 159 per_proc = cpu_data_ptr[cpu]; 160 161 bzero((char *)per_proc->cpu_hwIntCnt, sizeof(uint32_t)*256); 162 163 return KERN_SUCCESS; 164} 165 166