xref: /xnu-8792.61.2/osfmk/i386/machdep_call.h (revision 42e220869062b56f8d7d0726fd4c88954f87902c)
1 /*
2  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
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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,
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12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
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15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
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18  * The Original Code and all software distributed under the License are
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20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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27  */
28 /*
29  * Copyright (c) 1992 NeXT Computer, Inc.
30  *
31  * Machine dependent kernel call table defines.
32  *
33  * HISTORY
34  *
35  * 17 June 1992 ? at NeXT
36  *	Created.
37  */
38 
39 /* The maximum number of fixed arguments any machdep routine takes. */
40 #define MACHDEP_MAX_ARGS 4
41 
42 typedef union {
43 	kern_return_t           (*args_0)(void);
44 	kern_return_t           (*args_1)(uint32_t);
45 	kern_return_t           (*args64_1)(uint64_t);
46 	kern_return_t           (*args_2)(uint32_t, uint32_t);
47 	kern_return_t           (*args64_2)(uint64_t, uint64_t);
48 	kern_return_t           (*args_3)(uint32_t, uint32_t, uint32_t);
49 	kern_return_t           (*args64_3)(uint64_t, uint64_t, uint64_t);
50 	kern_return_t           (*args_4)(uint32_t, uint32_t, uint32_t, uint32_t);
51 	kern_return_t           (*args_var)(uint32_t, ...);
52 	int                     (*args_bsd_3)(uint32_t *, uint32_t,
53 	    uint32_t, uint32_t);
54 	int                     (*args64_bsd_3)(uint32_t *, uint64_t,
55 	    uint64_t, uint64_t);
56 } machdep_call_routine_t;
57 
58 #define MACHDEP_CALL_ROUTINE(func, args)        \
59 	{ { .args_ ## args = func }, args, 0 }
60 
61 #define MACHDEP_CALL_ROUTINE64(func, args)      \
62 	{ { .args64_ ## args = func }, args, 0 }
63 
64 #define MACHDEP_BSD_CALL_ROUTINE(func, args)    \
65 	{ { .args_bsd_ ## args = func }, args, 1 }
66 
67 #define MACHDEP_BSD_CALL_ROUTINE64(func, args)    \
68 	{ { .args64_bsd_ ## args = func }, args, 1 }
69 
70 typedef struct {
71 	machdep_call_routine_t      routine;
72 	int                         nargs;
73 	int                         bsd_style;
74 } machdep_call_t;
75 
76 extern const machdep_call_t             machdep_call_table[];
77 extern const machdep_call_t             machdep_call_table64[];
78 
79 extern int                      machdep_call_count;
80 
81 #if HYPERVISOR
82 extern kern_return_t            hv_task_trap(uint64_t, uint64_t);
83 extern kern_return_t            hv_thread_trap(uint64_t, uint64_t);
84 #endif
85 
86 extern kern_return_t            thread_fast_set_cthread_self(uint32_t);
87 extern kern_return_t            thread_fast_set_cthread_self64(uint64_t);
88 extern kern_return_t            thread_set_user_ldt(uint32_t, uint32_t, uint32_t);
89 
90 extern int              i386_set_ldt(uint32_t *, uint32_t, uint32_t, uint32_t);
91 extern int              i386_get_ldt(uint32_t *, uint32_t, uint32_t, uint32_t);
92 extern int              i386_set_ldt64(uint32_t *, uint64_t, uint64_t, uint64_t);
93 extern int              i386_get_ldt64(uint32_t *, uint64_t, uint64_t, uint64_t);
94 
95 extern void                     machdep_syscall(x86_saved_state_t *);
96 extern void                     machdep_syscall64(x86_saved_state_t *);
97