xnu-2422.1.72.tar.gz

[apple/xnu.git] / osfmk / i386 / trap.h

diff --git a/osfmk/i386/trap.h b/osfmk/i386/trap.h
index 8b2cc1389117cc067462508272a1160a160a093a..d5c14fe4fbf1c5e4aa63d883b6ea03839952c0b3 100644 (file)
--- a/osfmk/i386/trap.h
+++ b/osfmk/i386/trap.h
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -69,7 +72,7 @@
 #define        T_NO_FPU                7               /* no floating point */
 #define        T_DOUBLE_FAULT          8               /* double fault */
 #define        T_FPU_FAULT             9
-/*                             10 */
+#define T_INVALID_TSS          10
 #define        T_SEGMENT_NOT_PRESENT   11
 #define        T_STACK_FAULT           12
 #define        T_GENERAL_PROTECTION    13
@@ -77,6 +80,19 @@
 /*                             15 */
 #define        T_FLOATING_POINT_ERROR  16
 #define        T_WATCHPOINT            17
+#define T_MACHINE_CHECK                18
+#define T_SSE_FLOAT_ERROR       19
+/*                          20-126 */
+#define T_DTRACE_RET            127
+
+/* The SYSENTER and SYSCALL trap numbers are software constructs.
+ * These exceptions are dispatched directly to the system call handlers.
+ * See also the "software interrupt codes" section of
+ * osfmk/mach/i386/syscall_sw.h
+ */
+#define        T_SYSENTER              0x84
+#define        T_SYSCALL               0x85
+
 #define T_PREEMPT              255
 
 #define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \
@@ -84,7 +100,7 @@
                   "no coprocessor", "double fault", "coprocessor overrun", \
                   "invalid TSS", "segment not present", "stack bounds", \
                   "general protection", "page fault", "(reserved)", \
-                  "coprocessor error", "watchpoint"
+                  "coprocessor error", "watchpoint", "machine check", "SSE floating point"
 
 /*
  * Page-fault trap codes.
@@ -93,28 +109,57 @@
 #define        T_PF_WRITE              0x2             /* write access */
 #define        T_PF_USER               0x4             /* from user state */
 
+#ifdef PAE
+#define        T_PF_RSVD               0x8             /* reserved bit set to 1 */
+#define T_PF_EXECUTE           0x10            /* instruction fetch when NX */
+#endif
+
 #if !defined(ASSEMBLER) && defined(MACH_KERNEL)
 
 #include <i386/thread.h>
 
 extern void            i386_exception(
-                               int             exc,
-                               int             code,
-                               int             subcode);
+                               int                     exc,
+                               mach_exception_code_t   code,
+                               mach_exception_subcode_t subcode);
 
-extern void            thread_exception_return(void);
+extern void            sync_iss_to_iks(x86_saved_state_t *regs);
 
-extern boolean_t       kernel_trap(
-                               struct i386_saved_state *regs);
+extern void            sync_iss_to_iks_unconditionally(
+                               x86_saved_state_t       *regs);
 
-extern void            panic_trap(
-                               struct i386_saved_state *regs);
+extern void            kernel_trap(x86_saved_state_t *regs, uintptr_t *lo_spp);
 
-extern void            user_trap(
-                               struct i386_saved_state *regs);
+extern void            user_trap(x86_saved_state_t *regs);
+
+extern void            interrupt(x86_saved_state_t *regs);
+
+extern void            panic_double_fault64(x86_saved_state_t *regs);
+extern void            panic_machine_check64(x86_saved_state_t *regs);
 
 extern void            i386_astintr(int preemption);
 
+
+typedef kern_return_t (*perfCallback)(
+                               int                     trapno,
+                               void                    *regs,
+                               uintptr_t               *lo_spp,
+                                     int);
+
+typedef kern_return_t (*perfASTCallback)(ast_t reasons, ast_t *myast);
+
+extern volatile perfCallback perfTrapHook;
+extern volatile perfASTCallback perfASTHook;
+extern volatile perfCallback perfIntHook;
+
+extern void            panic_i386_backtrace(void *, int, const char *, boolean_t, x86_saved_state_t *);
+#if MACH_KDP
+extern boolean_t       kdp_i386_trap(
+                               unsigned int,
+                               x86_saved_state64_t *,
+                               kern_return_t,
+                               vm_offset_t);
+#endif /* MACH_KDP */
 #endif /* !ASSEMBLER && MACH_KERNEL */
 
 #endif /* _I386_TRAP_H_ */