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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/******************************************************************************
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef __ASM_PARAVIRT_PATCH_H
#define __ASM_PARAVIRT_PATCH_H
#ifdef __ASSEMBLY__
.section .paravirt_branches, "a"
.previous
#define PARAVIRT_PATCH_SITE_BR(type) \
{ \
[1:] ; \
br.cond.sptk.many 2f ; \
nop.b 0 ; \
nop.b 0;; ; \
} ; \
2: \
.xdata8 ".paravirt_branches", 1b, type
#else
#include <linux/stringify.h>
#include <asm/intrinsics.h>
/* for binary patch */
struct paravirt_patch_site_bundle {
void *sbundle;
void *ebundle;
unsigned long type;
};
/* label means the beginning of new bundle */
#define paravirt_alt_bundle(instr, privop) \
"\t998:\n" \
"\t" instr "\n" \
"\t999:\n" \
"\t.pushsection .paravirt_bundles, \"a\"\n" \
"\t.popsection\n" \
"\t.xdata8 \".paravirt_bundles\", 998b, 999b, " \
__stringify(privop) "\n"
struct paravirt_patch_bundle_elem {
const void *sbundle;
const void *ebundle;
unsigned long type;
};
struct paravirt_patch_site_inst {
unsigned long stag;
unsigned long etag;
unsigned long type;
};
#define paravirt_alt_inst(instr, privop) \
"\t[998:]\n" \
"\t" instr "\n" \
"\t[999:]\n" \
"\t.pushsection .paravirt_insts, \"a\"\n" \
"\t.popsection\n" \
"\t.xdata8 \".paravirt_insts\", 998b, 999b, " \
__stringify(privop) "\n"
struct paravirt_patch_site_branch {
unsigned long tag;
unsigned long type;
};
struct paravirt_patch_branch_target {
const void *entry;
unsigned long type;
};
void
__paravirt_patch_apply_branch(
unsigned long tag, unsigned long type,
const struct paravirt_patch_branch_target *entries,
unsigned int nr_entries);
void
paravirt_patch_reloc_br(unsigned long tag, const void *target);
void
paravirt_patch_reloc_brl(unsigned long tag, const void *target);
#if defined(ASM_SUPPORTED) && defined(CONFIG_PARAVIRT)
unsigned long
ia64_native_patch_bundle(void *sbundle, void *ebundle, unsigned long type);
unsigned long
__paravirt_patch_apply_bundle(void *sbundle, void *ebundle, unsigned long type,
const struct paravirt_patch_bundle_elem *elems,
unsigned long nelems,
const struct paravirt_patch_bundle_elem **found);
void
paravirt_patch_apply_bundle(const struct paravirt_patch_site_bundle *start,
const struct paravirt_patch_site_bundle *end);
void
paravirt_patch_apply_inst(const struct paravirt_patch_site_inst *start,
const struct paravirt_patch_site_inst *end);
void paravirt_patch_apply(void);
#else
#define paravirt_patch_apply_bundle(start, end) do { } while (0)
#define paravirt_patch_apply_inst(start, end) do { } while (0)
#define paravirt_patch_apply() do { } while (0)
#endif
#endif /* !__ASSEMBLEY__ */
#endif /* __ASM_PARAVIRT_PATCH_H */
/*
* Local variables:
* mode: C
* c-set-style: "linux"
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*/
|
