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
|
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <stdint.h>
#if defined(__i386__) || defined(__x86_64__)
#include <cpuid.h>
#include <x86intrin.h>
#endif
#include "runtime.h"
#if defined(__i386__) || defined(__x86_64__)
struct cpuid_ret {
uint32_t eax;
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
};
struct cpuid_ret cpuid(uint32_t, uint32_t)
__asm__(GOSYM_PREFIX "internal_1cpu.cpuid")
__attribute__((no_split_stack));
struct cpuid_ret cpuid(uint32_t eaxArg, uint32_t ecxArg) {
unsigned int eax = 0;
unsigned int ebx = 0;
unsigned int ecx = 0;
unsigned int edx = 0;
struct cpuid_ret ret;
__get_cpuid_count(eaxArg, ecxArg, &eax, &ebx, &ecx, &edx);
ret.eax = (uint32_t)(eax);
ret.ebx = (uint32_t)(ebx);
ret.ecx = (uint32_t)(ecx);
ret.edx = (uint32_t)(edx);
return ret;
}
struct xgetbv_ret {
uint32_t eax;
uint32_t edx;
};
struct xgetbv_ret xgetbv(void)
__asm__(GOSYM_PREFIX "internal_1cpu.xgetbv")
__attribute__((no_split_stack));
#pragma GCC push_options
#pragma GCC target("xsave")
struct xgetbv_ret xgetbv(void) {
struct xgetbv_ret ret;
// At some point, use call to _xgetbv() instead:
//
// long long r = _xgetbv(0);
// ret.eax = r & 0xffffffff;
// ret.edx = r >> 32;
//
unsigned int __eax, __edx, __xcr_no = 0;
__asm__ ("xgetbv" : "=a" (__eax), "=d" (__edx) : "c" (__xcr_no));
ret.eax = __eax;
ret.edx = __edx;
return ret;
}
#pragma GCC pop_options
#endif /* defined(__i386__) || defined(__x86_64__) */
#ifdef __s390x__
struct facilityList {
uint64_t bits[4];
};
struct queryResult {
uint64_t bits[2];
};
struct facilityList stfle(void)
__asm__(GOSYM_PREFIX "internal_1cpu.stfle")
__attribute__((no_split_stack));
struct facilityList stfle(void) {
struct facilityList ret;
__asm__ ("la %%r1, %[ret]\t\n"
"lghi %%r0, 3\t\n" // last doubleword index to store
"xc 0(32,%%r1), 0(%%r1)\t\n" // clear 4 doublewords (32 bytes)
".long 0xb2b01000\t\n" // store facility list extended (STFLE)
:[ret] "=Q" (ret) : : "r0", "r1", "cc");
return ret;
}
struct queryResult kmQuery(void)
__asm__(GOSYM_PREFIX "internal_1cpu.kmQuery")
__attribute__((no_split_stack));
struct queryResult kmQuery() {
struct queryResult ret;
__asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KM-Query)
"la %%r1, %[ret]\t\n"
".long 0xb92e0024\t\n" // cipher message (KM)
:[ret] "=Q" (ret) : : "r0", "r1", "cc");
return ret;
}
struct queryResult kmcQuery(void)
__asm__(GOSYM_PREFIX "internal_1cpu.kmcQuery")
__attribute__((no_split_stack));
struct queryResult kmcQuery() {
struct queryResult ret;
__asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KMC-Query)
"la %%r1, %[ret]\t\n"
".long 0xb92f0024\t\n" // cipher message with chaining (KMC)
:[ret] "=Q" (ret) : : "r0", "r1", "cc");
return ret;
}
struct queryResult kmctrQuery(void)
__asm__(GOSYM_PREFIX "internal_1cpu.kmctrQuery")
__attribute__((no_split_stack));
struct queryResult kmctrQuery() {
struct queryResult ret;
__asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KMCTR-Query)
"la %%r1, %[ret]\t\n"
".long 0xb92d4024\t\n" // cipher message with counter (KMCTR)
:[ret] "=Q" (ret) : : "r0", "r1", "cc");
return ret;
}
struct queryResult kmaQuery(void)
__asm__(GOSYM_PREFIX "internal_1cpu.kmaQuery")
__attribute__((no_split_stack));
struct queryResult kmaQuery() {
struct queryResult ret;
__asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KMA-Query)
"la %%r1, %[ret]\t\n"
".long 0xb9296024\t\n" // cipher message with authentication (KMA)
:[ret] "=Q" (ret) : : "r0", "r1", "cc");
return ret;
}
struct queryResult kimdQuery(void)
__asm__(GOSYM_PREFIX "internal_1cpu.kimdQuery")
__attribute__((no_split_stack));
struct queryResult kimdQuery() {
struct queryResult ret;
__asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KIMD-Query)
"la %%r1, %[ret]\t\n"
".long 0xb93e0024\t\n" // compute intermediate message digest (KIMD)
:[ret] "=Q" (ret) : : "r0", "r1", "cc");
return ret;
}
struct queryResult klmdQuery(void)
__asm__(GOSYM_PREFIX "internal_1cpu.klmdQuery")
__attribute__((no_split_stack));
struct queryResult klmdQuery() {
struct queryResult ret;
__asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KLMD-Query)
"la %%r1, %[ret]\t\n"
".long 0xb93f0024\t\n" // compute last message digest (KLMD)
:[ret] "=Q" (ret) : : "r0", "r1", "cc");
return ret;
}
struct queryResult kdsaQuery(void)
__asm__(GOSYM_PREFIX "internal_1cpu.kdsaQuery")
__attribute__((no_split_stack));
struct queryResult kdsaQuery() {
struct queryResult ret;
__asm__ ("lghi %%r0, 0\t\n" // set function code to 0 (KDSA-Query)
"la %%r1, %[ret]\t\n"
".long 0xb93a0024\t\n" // kdsa
:[ret] "=QRST" (ret) : : "r0", "r1", "cc");
return ret;
}
#endif /* defined(__s390x__) */
#ifdef __aarch64__
uint64_t getisar0(void)
__asm__(GOSYM_PREFIX "internal_1cpu.getisar0")
__attribute__((no_split_stack));
uint64_t getisar0() {
uint64_t isar0;
__asm__("mrs %0,id_aa64isar0_el1" : "=r"(isar0));
return isar0;
}
uint64_t getMIDR(void)
__asm__(GOSYM_PREFIX "internal_1cpu.getMIDR")
__attribute__((no_split_stack));
uint64_t getMIDR() {
uint64_t MIDR;
__asm__("mrs %0,midr_el1" : "=r"(MIDR));
return MIDR;
}
#endif /* defined(__aarch64__) */
|
