blob: 211bbb04872d9d944b6fc6f0e95ea750224486fa (
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
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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
|
/* $Id: timesupref.cpp $ */
/** @file
* IPRT - Time using SUPLib, the C Implementation.
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* 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, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#if !defined(IN_GUEST) && !defined(RT_NO_GIP)
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/time.h>
#include "internal/iprt.h"
#include <iprt/asm.h>
#include <iprt/asm-math.h>
#include <iprt/asm-amd64-x86.h>
#include <iprt/param.h>
#include <iprt/string.h>
#include <VBox/sup.h>
#ifdef IN_RC
# include <VBox/vmm/vmm.h>
# include <VBox/vmm/vm.h>
#endif
#include "internal/time.h"
#define TMPL_MODE_SYNC_INVAR_NO_DELTA 1
#define TMPL_MODE_SYNC_INVAR_WITH_DELTA 2
#define TMPL_MODE_ASYNC 3
/*
* Use the XCHG instruction for some kind of serialization.
*/
#define TMPL_READ_FENCE() ASMReadFence()
#undef TMPL_MODE
#define TMPL_MODE TMPL_MODE_SYNC_INVAR_NO_DELTA
#undef TMPL_GET_CPU_METHOD
#define TMPL_GET_CPU_METHOD 0
#undef rtTimeNanoTSInternalRef
#define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarNoDelta
#include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarNoDelta);
#ifdef IN_RING3
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseApicId
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseApicId);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_0B
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseApicIdExt0B
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseApicIdExt0B);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_8000001E
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseApicIdExt8000001E
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseApicIdExt8000001E);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseRdtscp
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseRdtscp);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDeltaUseIdtrLim
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDeltaUseIdtrLim);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseApicId
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseApicId);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_0B
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseApicIdExt0B
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseApicIdExt0B);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_8000001E
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseApicIdExt8000001E
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseApicIdExt8000001E);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseRdtscp
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseRdtscp);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseIdtrLim
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseIdtrLim);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsyncUseRdtscpGroupChNumCl
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsyncUseRdtscpGroupChNumCl);
#else /* IN_RC || IN_RING0: Disable interrupts and call getter function. */
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD UINT32_MAX
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacySyncInvarWithDelta
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacySyncInvarWithDelta);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLegacyAsync
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLegacyAsync);
#endif
/*
* Use LFENCE for load serialization.
*/
#undef TMPL_READ_FENCE
#define TMPL_READ_FENCE() ASMReadFenceSSE2()
#undef TMPL_MODE
#define TMPL_MODE TMPL_MODE_SYNC_INVAR_NO_DELTA
#undef TMPL_GET_CPU_METHOD
#define TMPL_GET_CPU_METHOD 0
#undef rtTimeNanoTSInternalRef
#define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarNoDelta
#include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarNoDelta);
#ifdef IN_RING3
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicId
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicId);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_0B
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicIdExt0B
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicIdExt0B);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_8000001E
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicIdExt8000001E
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseApicIdExt8000001E);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseRdtscp
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseRdtscp);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDeltaUseIdtrLim
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDeltaUseIdtrLim);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseApicId
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseApicId);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_0B
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseApicIdExt0B
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseApicIdExt0B);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_APIC_ID_EXT_8000001E
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseApicIdExt8000001E
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseApicIdExt8000001E);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseRdtscp
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseRdtscp);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseIdtrLim
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseIdtrLim);
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsyncUseRdtscpGroupChNumCl
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsyncUseRdtscpGroupChNumCl);
#else /* IN_RC || IN_RING0: Disable interrupts and call getter function. */
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_SYNC_INVAR_WITH_DELTA
# undef TMPL_GET_CPU_METHOD
# define TMPL_GET_CPU_METHOD UINT32_MAX
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceSyncInvarWithDelta
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceSyncInvarWithDelta);
# undef TMPL_MODE
# define TMPL_MODE TMPL_MODE_ASYNC
# undef rtTimeNanoTSInternalRef
# define rtTimeNanoTSInternalRef RTTimeNanoTSLFenceAsync
# include "timesupref.h"
RT_EXPORT_SYMBOL(RTTimeNanoTSLFenceAsync);
#endif
#endif /* !IN_GUEST && !RT_NO_GIP */
|
