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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/*
* Register definitions for the Hexagon architecture
*
* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef _ASM_REGISTERS_H
#define _ASM_REGISTERS_H
#define SP r29
#ifndef __ASSEMBLY__
/* See kernel/entry.S for further documentation. */
/*
* Entry code copies the event record out of guest registers into
* this structure (which is on the stack).
*/
struct hvm_event_record {
unsigned long vmel; /* Event Linkage (return address) */
unsigned long vmest; /* Event context - pre-event SSR values */
unsigned long vmpsp; /* Previous stack pointer */
unsigned long vmbadva; /* Bad virtual address for addressing events */
};
struct pt_regs {
long restart_r0; /* R0 checkpoint for syscall restart */
long syscall_nr; /* Only used in system calls */
union {
struct {
unsigned long usr;
unsigned long preds;
};
long long int predsusr;
};
union {
struct {
unsigned long m0;
unsigned long m1;
};
long long int m1m0;
};
union {
struct {
unsigned long sa1;
unsigned long lc1;
};
long long int lc1sa1;
};
union {
struct {
unsigned long sa0;
unsigned long lc0;
};
long long int lc0sa0;
};
union {
struct {
unsigned long gp;
unsigned long ugp;
};
long long int ugpgp;
};
/*
* Be extremely careful with rearranging these, if at all. Some code
* assumes the 32 registers exist exactly like this in memory;
* e.g. kernel/ptrace.c
* e.g. kernel/signal.c (restore_sigcontext)
*/
union {
struct {
unsigned long r00;
unsigned long r01;
};
long long int r0100;
};
union {
struct {
unsigned long r02;
unsigned long r03;
};
long long int r0302;
};
union {
struct {
unsigned long r04;
unsigned long r05;
};
long long int r0504;
};
union {
struct {
unsigned long r06;
unsigned long r07;
};
long long int r0706;
};
union {
struct {
unsigned long r08;
unsigned long r09;
};
long long int r0908;
};
union {
struct {
unsigned long r10;
unsigned long r11;
};
long long int r1110;
};
union {
struct {
unsigned long r12;
unsigned long r13;
};
long long int r1312;
};
union {
struct {
unsigned long r14;
unsigned long r15;
};
long long int r1514;
};
union {
struct {
unsigned long r16;
unsigned long r17;
};
long long int r1716;
};
union {
struct {
unsigned long r18;
unsigned long r19;
};
long long int r1918;
};
union {
struct {
unsigned long r20;
unsigned long r21;
};
long long int r2120;
};
union {
struct {
unsigned long r22;
unsigned long r23;
};
long long int r2322;
};
union {
struct {
unsigned long r24;
unsigned long r25;
};
long long int r2524;
};
union {
struct {
unsigned long r26;
unsigned long r27;
};
long long int r2726;
};
union {
struct {
unsigned long r28;
unsigned long r29;
};
long long int r2928;
};
union {
struct {
unsigned long r30;
unsigned long r31;
};
long long int r3130;
};
/* VM dispatch pushes event record onto stack - we can build on it */
struct hvm_event_record hvmer;
};
/* Defines to conveniently access the values */
/*
* As of the VM spec 0.5, these registers are now set/retrieved via a
* VM call. On the in-bound side, we just fetch the values
* at the entry points and stuff them into the old record in pt_regs.
* However, on the outbound side, probably at VM rte, we set the
* registers back.
*/
#define pt_elr(regs) ((regs)->hvmer.vmel)
#define pt_set_elr(regs, val) ((regs)->hvmer.vmel = (val))
#define pt_cause(regs) ((regs)->hvmer.vmest & (HVM_VMEST_CAUSE_MSK))
#define user_mode(regs) \
(((regs)->hvmer.vmest & (HVM_VMEST_UM_MSK << HVM_VMEST_UM_SFT)) != 0)
#define ints_enabled(regs) \
(((regs)->hvmer.vmest & (HVM_VMEST_IE_MSK << HVM_VMEST_IE_SFT)) != 0)
#define pt_psp(regs) ((regs)->hvmer.vmpsp)
#define pt_badva(regs) ((regs)->hvmer.vmbadva)
#define pt_set_rte_sp(regs, sp) do {\
pt_psp(regs) = (sp);\
(regs)->SP = (unsigned long) &((regs)->hvmer);\
} while (0)
#define pt_set_kmode(regs) \
(regs)->hvmer.vmest = (HVM_VMEST_IE_MSK << HVM_VMEST_IE_SFT)
#define pt_set_usermode(regs) \
(regs)->hvmer.vmest = (HVM_VMEST_UM_MSK << HVM_VMEST_UM_SFT) \
| (HVM_VMEST_IE_MSK << HVM_VMEST_IE_SFT)
#endif /* ifndef __ASSEMBLY */
#endif
|
