/* * Copyright (c) 2009-2012 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * Mach Operating System * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ /* * Hardware trap/fault handler. */ #include <types.h> #include <i386/eflags.h> #include <i386/trap.h> #include <i386/pmap.h> #include <i386/fpu.h> #include <i386/misc_protos.h> /* panic_io_port_read() */ #include <mach/exception.h> #include <mach/kern_return.h> #include <mach/vm_param.h> #include <mach/i386/thread_status.h> #include <kern/kern_types.h> #include <kern/processor.h> #include <kern/thread.h> #include <kern/task.h> #include <kern/sched.h> #include <kern/sched_prim.h> #include <kern/exception.h> #include <kern/spl.h> #include <kern/misc_protos.h> #include <kern/debug.h> #include <sys/kdebug.h> #include <string.h> #include <i386/postcode.h> #include <i386/mp_desc.h> #include <i386/proc_reg.h> #if CONFIG_MCA #include <i386/machine_check.h> #endif #include <mach/i386/syscall_sw.h> #include <machine/pal_routines.h> #include <libkern/OSAtomic.h> extern void kprintf_break_lock(void); extern void kprint_state(x86_saved_state64_t *saved_state); void panic_64(x86_saved_state_t *, int, const char *, boolean_t); extern volatile int panic_double_fault_cpu; #if defined(__x86_64__) && DEBUG /* * K64 debug - fatal handler for debug code in the trap vectors. */ extern void panic_idt64(x86_saved_state_t *rsp); void panic_idt64(x86_saved_state_t *rsp) { kprint_state(saved_state64(rsp)); panic("panic_idt64"); } #endif void panic_64(x86_saved_state_t *sp, __unused int pc, __unused const char *msg, boolean_t do_mca_dump) { /* Set postcode (DEBUG only) */ postcode(pc); /* * Issue an I/O port read if one has been requested - this is an * event logic analyzers can use as a trigger point. */ panic_io_port_read(); /* * Break kprintf lock in case of recursion, * and record originally faulted instruction address. */ kprintf_break_lock(); if (do_mca_dump) { #if CONFIG_MCA /* * Dump the contents of the machine check MSRs (if any). */ mca_dump(); #endif } x86_saved_state64_t *regs = saved_state64(sp); panic("%s at 0x%016llx, registers:\n" "CR0: 0x%016lx, CR2: 0x%016lx, CR3: 0x%016lx, CR4: 0x%016lx\n" "RAX: 0x%016llx, RBX: 0x%016llx, RCX: 0x%016llx, RDX: 0x%016llx\n" "RSP: 0x%016llx, RBP: 0x%016llx, RSI: 0x%016llx, RDI: 0x%016llx\n" "R8: 0x%016llx, R9: 0x%016llx, R10: 0x%016llx, R11: 0x%016llx\n" "R12: 0x%016llx, R13: 0x%016llx, R14: 0x%016llx, R15: 0x%016llx\n" "RFL: 0x%016llx, RIP: 0x%016llx, CS: 0x%016llx, SS: 0x%016llx\n" "Error code: 0x%016llx%s\n", msg, regs->isf.rip, get_cr0(), get_cr2(), get_cr3_raw(), get_cr4(), regs->rax, regs->rbx, regs->rcx, regs->rdx, regs->isf.rsp, regs->rbp, regs->rsi, regs->rdi, regs->r8, regs->r9, regs->r10, regs->r11, regs->r12, regs->r13, regs->r14, regs->r15, regs->isf.rflags, regs->isf.rip, regs->isf.cs & 0xFFFF, regs->isf.ss & 0xFFFF, regs->isf.err, virtualized ? " VMM" : ""); } void panic_double_fault64(x86_saved_state_t *sp) { (void)OSCompareAndSwap((UInt32) -1, (UInt32) cpu_number(), (volatile UInt32 *)&panic_double_fault_cpu); panic_64(sp, PANIC_DOUBLE_FAULT, "Double fault", FALSE); } void panic_machine_check64(x86_saved_state_t *sp) { panic_64(sp, PANIC_MACHINE_CHECK, "Machine Check", TRUE); }