1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  *
25  * Copyright 2018 Joyent, Inc.
26  */
27 
28 #ifndef _SYS_KDI_MACHIMPL_H
29 #define	_SYS_KDI_MACHIMPL_H
30 
31 /*
32  * The Kernel/Debugger interface.  The operations provided by the kdi_t,
33  * defined below, comprise the Debugger -> Kernel portion of the interface,
34  * and are to be used only when the system has been stopped.
35  */
36 
37 #include <sys/modctl.h>
38 #include <sys/types.h>
39 #include <sys/cpuvar.h>
40 #include <sys/kdi_regs.h>
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 typedef void (*kdi_main_t)(kdi_cpusave_t *);
47 
48 typedef struct kdi_memrange {
49 	caddr_t mr_base;
50 	caddr_t mr_lim;
51 } kdi_memrange_t;
52 
53 #define	KDI_MEMRANGES_MAX	2
54 
55 typedef struct kdi_mach {
56 	void (*mkdi_activate)(kdi_main_t, kdi_cpusave_t *, uint_t);
57 	void (*mkdi_deactivate)(void);
58 
59 	void (*mkdi_idt_switch)(kdi_cpusave_t *);
60 
61 	void (*mkdi_update_drreg)(kdi_drreg_t *);
62 
63 	uintptr_t (*mkdi_get_userlimit)(void);
64 
65 	int (*mkdi_get_cpuinfo)(uint_t *, uint_t *, uint_t *);
66 
67 	void (*mkdi_stop_slaves)(int, int);
68 
69 	void (*mkdi_start_slaves)(void);
70 
71 	void (*mkdi_slave_wait)(void);
72 
73 	void (*mkdi_memrange_add)(caddr_t, size_t);
74 
75 	void (*mkdi_reboot)(void);
76 } kdi_mach_t;
77 
78 #define	mkdi_activate			kdi_mach.mkdi_activate
79 #define	mkdi_deactivate			kdi_mach.mkdi_deactivate
80 #define	mkdi_idt_switch			kdi_mach.mkdi_idt_switch
81 #define	mkdi_update_drreg		kdi_mach.mkdi_update_drreg
82 #define	mkdi_get_userlimit		kdi_mach.mkdi_get_userlimit
83 #define	mkdi_get_cpuinfo		kdi_mach.mkdi_get_cpuinfo
84 #define	mkdi_stop_slaves		kdi_mach.mkdi_stop_slaves
85 #define	mkdi_start_slaves		kdi_mach.mkdi_start_slaves
86 #define	mkdi_slave_wait			kdi_mach.mkdi_slave_wait
87 #define	mkdi_memrange_add		kdi_mach.mkdi_memrange_add
88 #define	mkdi_reboot			kdi_mach.mkdi_reboot
89 
90 extern void hat_kdi_init(void);
91 
92 extern ulong_t kdi_getdr0(void), kdi_getdr1(void), kdi_getdr2(void);
93 extern ulong_t kdi_getdr3(void), kdi_getdr6(void), kdi_getdr7(void);
94 extern void kdi_setdr0(ulong_t), kdi_setdr1(ulong_t), kdi_setdr2(ulong_t);
95 extern void kdi_setdr3(ulong_t), kdi_setdr6(ulong_t), kdi_setdr7(ulong_t);
96 extern ulong_t kdi_dreg_get(int);
97 extern void kdi_dreg_set(int, ulong_t);
98 extern void kdi_update_drreg(kdi_drreg_t *);
99 extern void kdi_cpu_debug_init(kdi_cpusave_t *);
100 
101 extern void kdi_cpu_init(void);
102 extern void kdi_xc_others(int, void (*)(void));
103 extern void kdi_start_slaves(void);
104 extern void kdi_slave_wait(void);
105 
106 extern void kdi_idtr_set(gate_desc_t *, size_t);
107 extern void kdi_idt_write(struct gate_desc *, uint_t);
108 extern void kdi_idt_sync(void);
109 extern void kdi_idt_switch(kdi_cpusave_t *);
110 #ifdef __xpv
111 extern void kdi_idtr_write(desctbr_t *);
112 #else
113 #define	kdi_idtr_write(idtr) wr_idtr(idtr)
114 #endif
115 
116 extern void kdi_activate(kdi_main_t, kdi_cpusave_t *, uint_t);
117 extern void kdi_deactivate(void);
118 extern void kdi_stop_slaves(int, int);
119 extern void kdi_memrange_add(caddr_t, size_t);
120 extern void kdi_reboot(void);
121 
122 #ifdef __cplusplus
123 }
124 #endif
125 
126 #endif /* _SYS_KDI_MACHIMPL_H */
127