blob: 9d5b64a240e6a8cec9806b48d91d7a059ec030aa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _KAIF_REGS_H
#define _KAIF_REGS_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifndef _ASM
#include <sys/types.h>
#include <sys/segments.h>
#include <mdb/mdb_kreg_impl.h>
#include <mdb/mdb_target.h>
#include <kmdb/kmdb_dpi.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define KAIF_NCRUMBS 5
#ifndef _ASM
/*
* We maintain a ring buffer of bread crumbs for debugging purposes. The
* current buffer pointer is advanced along the ring with each intercepted
* trap (debugger entry, invalid memory access, fault during step, etc).
* The macros used to populate the crumb buffers assume that all members are
* 32 bits wide.
*/
typedef struct kaif_crumb {
kreg_t krm_cpu_state; /* This CPU's state at last entry */
kreg_t krm_pc; /* Instruction pointer at trap */
kreg_t krm_sp; /* Stack pointer at trap */
kreg_t krm_trapno; /* The last trap number */
kreg_t krm_flag; /* KAIF_CRUMB_F_* */
} kaif_crumb_t;
/*
* Storage for %dr0-3, %dr6, and %dr7.
*/
typedef struct kaif_drreg {
kreg_t dr_ctl;
kreg_t dr_stat;
kreg_t dr_addr[KREG_MAXWPIDX + 1];
} kaif_drreg_t;
/*
* Data structure used to hold all of the state for a given CPU.
*/
typedef struct kaif_cpusave {
mdb_tgt_gregset_t *krs_gregs; /* saved registers */
kaif_drreg_t krs_dr; /* saved debug registers */
desctbr_t krs_gdtr; /* saved GDT register */
desctbr_t krs_idtr; /* saved IDT register */
desctbr_t krs_tmpdesc; /* pre-save *DT comparisons */
kreg_t krs_cr0; /* saved %cr0 */
kmdb_msr_t *krs_msr; /* ptr to MSR save area */
uint_t krs_cpu_state; /* KAIF_CPU_STATE_* mstr/slv */
uint_t krs_cpu_flushed; /* Have caches been flushed? */
uint_t krs_cpu_id; /* this CPU's ID */
/* Bread crumb ring buffer */
ulong_t krs_curcrumbidx; /* Current krs_crumbs idx */
kaif_crumb_t *krs_curcrumb; /* Pointer to current crumb */
kaif_crumb_t krs_crumbs[KAIF_NCRUMBS]; /* Crumbs */
} kaif_cpusave_t;
#endif /* !_ASM */
#ifdef __cplusplus
}
#endif
#endif /* _KAIF_REGS_H */
|
