[apple/xnu.git] / osfmk / i386 / trap_native.c

/*
 * 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);

}
Commit	Line	Data
6d2010ae	1	/*
39236c6e	2	* Copyright (c) 2009-2012 Apple Inc. All rights reserved.
6d2010ae A	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	* @OSF_COPYRIGHT@
	30	*/
	31	/*
	32	* Mach Operating System
	33	* Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
	34	* All Rights Reserved.
	35	*
	36	* Permission to use, copy, modify and distribute this software and its
	37	* documentation is hereby granted, provided that both the copyright
	38	* notice and this permission notice appear in all copies of the
	39	* software, derivative works or modified versions, and any portions
	40	* thereof, and that both notices appear in supporting documentation.
	41	*
	42	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	43	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	44	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	45	*
	46	* Carnegie Mellon requests users of this software to return to
	47	*
	48	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	49	* School of Computer Science
	50	* Carnegie Mellon University
	51	* Pittsburgh PA 15213-3890
	52	*
	53	* any improvements or extensions that they make and grant Carnegie Mellon
	54	* the rights to redistribute these changes.
	55	*/
	56	/*
	57	*/
	58
	59	/*
	60	* Hardware trap/fault handler.
	61	*/
	62
	63	#include <types.h>
	64	#include <i386/eflags.h>
	65	#include <i386/trap.h>
	66	#include <i386/pmap.h>
67	#include <i386/fpu.h>
68	#include <i386/misc_protos.h> /* panic_io_port_read() */
69
70	#include <mach/exception.h>
71	#include <mach/kern_return.h>
72	#include <mach/vm_param.h>
73	#include <mach/i386/thread_status.h>
74
75	#include <kern/kern_types.h>
76	#include <kern/processor.h>
77	#include <kern/thread.h>
78	#include <kern/task.h>
79	#include <kern/sched.h>
80	#include <kern/sched_prim.h>
81	#include <kern/exception.h>
82	#include <kern/spl.h>
83	#include <kern/misc_protos.h>
84	#include <kern/debug.h>
85
86	#include <sys/kdebug.h>
87
88	#include <string.h>
89
90	#include <i386/postcode.h>
91	#include <i386/mp_desc.h>
92	#include <i386/proc_reg.h>
93	#if CONFIG_MCA
94	#include <i386/machine_check.h>
95	#endif
96	#include <mach/i386/syscall_sw.h>
97
98	#include <machine/pal_routines.h>
99	#include <libkern/OSAtomic.h>
100
101	extern void kprintf_break_lock(void);
102	extern void kprint_state(x86_saved_state64_t *saved_state);
103	void panic_64(x86_saved_state_t , int, const char , boolean_t);
104
105	extern volatile int panic_double_fault_cpu;
106
316670eb	107
6d2010ae A	108	#if defined(__x86_64__) && DEBUG
	109	/*
	110	* K64 debug - fatal handler for debug code in the trap vectors.
	111	*/
	112	extern void
	113	panic_idt64(x86_saved_state_t *rsp);
	114	void
	115	panic_idt64(x86_saved_state_t *rsp)
	116	{
	117	kprint_state(saved_state64(rsp));
	118	panic("panic_idt64");
	119	}
	120	#endif
	121
6d2010ae A	122
	123	void
	124	panic_64(x86_saved_state_t sp, __unused int pc, __unused const char msg, boolean_t do_mca_dump)
	125	{
	126	/* Set postcode (DEBUG only) */
	127	postcode(pc);
	128
	129	/*
	130	* Issue an I/O port read if one has been requested - this is an
	131	* event logic analyzers can use as a trigger point.
	132	*/
	133	panic_io_port_read();
	134
	135
	136	/*
	137	* Break kprintf lock in case of recursion,
	138	* and record originally faulted instruction address.
	139	*/
	140	kprintf_break_lock();
	141
	142	if (do_mca_dump) {
	143	#if CONFIG_MCA
	144	/*
	145	* Dump the contents of the machine check MSRs (if any).
	146	*/
	147	mca_dump();
	148	#endif
	149	}
	150
6d2010ae A	151	x86_saved_state64_t *regs = saved_state64(sp);
	152	panic("%s at 0x%016llx, registers:\n"
	153	"CR0: 0x%016lx, CR2: 0x%016lx, CR3: 0x%016lx, CR4: 0x%016lx\n"
	154	"RAX: 0x%016llx, RBX: 0x%016llx, RCX: 0x%016llx, RDX: 0x%016llx\n"
	155	"RSP: 0x%016llx, RBP: 0x%016llx, RSI: 0x%016llx, RDI: 0x%016llx\n"
	156	"R8: 0x%016llx, R9: 0x%016llx, R10: 0x%016llx, R11: 0x%016llx\n"
	157	"R12: 0x%016llx, R13: 0x%016llx, R14: 0x%016llx, R15: 0x%016llx\n"
	158	"RFL: 0x%016llx, RIP: 0x%016llx, CS: 0x%016llx, SS: 0x%016llx\n"
316670eb	159	"Error code: 0x%016llx%s\n",
6d2010ae A	160	msg,
	161	regs->isf.rip,
	162	get_cr0(), get_cr2(), get_cr3_raw(), get_cr4(),
	163	regs->rax, regs->rbx, regs->rcx, regs->rdx,
	164	regs->isf.rsp, regs->rbp, regs->rsi, regs->rdi,
	165	regs->r8, regs->r9, regs->r10, regs->r11,
	166	regs->r12, regs->r13, regs->r14, regs->r15,
	167	regs->isf.rflags, regs->isf.rip, regs->isf.cs & 0xFFFF, regs->isf.ss & 0xFFFF,
316670eb	168	regs->isf.err, virtualized ? " VMM" : "");
6d2010ae A	169	}
	170
	171	void
	172	panic_double_fault64(x86_saved_state_t *sp)
	173	{
	174	(void)OSCompareAndSwap((UInt32) -1, (UInt32) cpu_number(), (volatile UInt32 *)&panic_double_fault_cpu);
	175	panic_64(sp, PANIC_DOUBLE_FAULT, "Double fault", FALSE);
	176
	177	}
	178	void
	179
	180	panic_machine_check64(x86_saved_state_t *sp)
	181	{
	182	panic_64(sp, PANIC_MACHINE_CHECK, "Machine Check", TRUE);
	183
	184	}