VirtualBox

source: vbox/trunk/src/VBox/VMM/testcase/tstMicro.h@ 100764

Last change on this file since 100764 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

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1/* $Id: tstMicro.h 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * Micro Testcase, profiling special CPU operations.
4 */
5
6/*
7 * Copyright (C) 2006-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * SPDX-License-Identifier: GPL-3.0-only
26 */
27
28#ifndef VMM_INCLUDED_SRC_testcase_tstMicro_h
29#define VMM_INCLUDED_SRC_testcase_tstMicro_h
30#ifndef RT_WITHOUT_PRAGMA_ONCE
31# pragma once
32#endif
33
34/**
35 * The testcase identifier.
36 */
37typedef enum TSTMICROTEST
38{
39 TSTMICROTEST_OVERHEAD = 0,
40 TSTMICROTEST_INVLPG_0,
41 TSTMICROTEST_INVLPG_EIP,
42 TSTMICROTEST_INVLPG_ESP,
43 TSTMICROTEST_CR3_RELOAD,
44 TSTMICROTEST_WP_DISABLE,
45 TSTMICROTEST_WP_ENABLE,
46
47 TSTMICROTEST_TRAP_FIRST,
48 TSTMICROTEST_PF_R0 = TSTMICROTEST_TRAP_FIRST,
49 TSTMICROTEST_PF_R1,
50 TSTMICROTEST_PF_R2,
51 TSTMICROTEST_PF_R3,
52
53 /** The max testcase. */
54 TSTMICROTEST_MAX
55} TSTMICROTEST;
56
57
58/**
59 *
60 */
61typedef struct TSTMICRORESULT
62{
63 /** The total number of ticks spent executing the testcase.
64 * This may include extra overhead stuff if we're weird stuff during trap handler. */
65 uint64_t cTotalTicks;
66 /** Number of ticks spent getting into Rx from R0.
67 * This will include time spent setting up the testcase in R3. */
68 uint64_t cToRxFirstTicks;
69 /** Number of ticks spent executing the trap.
70 * I.e. from right before trapping instruction to the start of the trap handler.
71 * This does not apply to testcases which doesn't trap. */
72 uint64_t cTrapTicks;
73 /** Number of ticks spent resuming Rx executing after a trap.
74 * This does not apply to testcases which doesn't trap. */
75 uint64_t cToRxTrapTicks;
76 /** Number of ticks to get to back to r0 after resuming the trapped code.
77 * This does not apply to testcases which doesn't trap. */
78 uint64_t cToR0Ticks;
79} TSTMICRORESULT, *PTSTMICRORESULT;
80
81/**
82 * Micro profiling testcase
83 */
84typedef struct TSTMICRO
85{
86 /** The RC address of this structure. */
87 RTRCPTR RCPtr;
88 /** Just for proper alignment. */
89 RTRCPTR RCPtrStack;
90
91 /** TSC sampled right before leaving R0. */
92 uint64_t u64TSCR0Start;
93 /** TSC sampled right before the exception. */
94 uint64_t u64TSCRxStart;
95 /** TSC sampled right after entering the trap handler. */
96 uint64_t u64TSCR0Enter;
97 /** TSC sampled right before exitting the trap handler. */
98 uint64_t u64TSCR0Exit;
99 /** TSC sampled right after resuming guest trap. */
100 uint64_t u64TSCRxEnd;
101 /** TSC sampled right after re-entering R0. */
102 uint64_t u64TSCR0End;
103 /** Number of times entered (should be one). */
104 uint32_t cHits;
105 /** Advance EIP. */
106 int32_t offEIPAdd;
107 /** The last CR3 code. */
108 uint32_t u32CR2;
109 /** The last error code. */
110 uint32_t u32ErrCd;
111 /** The last trap eip. */
112 uint32_t u32EIP;
113 /** The original IDT address and limit. */
114 VBOXIDTR OriginalIDTR;
115 /** Our IDT. */
116 VBOXIDTE aIDT[256];
117
118 /** The overhead for the rdtsc + 2 xchg instr. */
119 uint64_t u64Overhead;
120
121 /** The testresults. */
122 TSTMICRORESULT aResults[TSTMICROTEST_MAX];
123 /** Ring-3 stack. */
124 uint8_t au8Stack[4096];
125
126} TSTMICRO, *PTSTMICRO;
127
128
129RT_C_DECLS_BEGIN
130
131DECLASM(void) idtOnly42(PTSTMICRO pTst);
132
133
134DECLASM(void) tstOverhead(PTSTMICRO pTst);
135DECLASM(void) tstInvlpg0(PTSTMICRO pTst);
136DECLASM(void) tstInvlpgEIP(PTSTMICRO pTst);
137DECLASM(void) tstInvlpgESP(PTSTMICRO pTst);
138DECLASM(void) tstCR3Reload(PTSTMICRO pTst);
139DECLASM(void) tstWPEnable(PTSTMICRO pTst);
140DECLASM(void) tstWPDisable(PTSTMICRO pTst);
141
142
143DECLASM(int) tstPFR0(PTSTMICRO pTst);
144DECLASM(int) tstPFR1(PTSTMICRO pTst);
145DECLASM(int) tstPFR2(PTSTMICRO pTst);
146DECLASM(int) tstPFR3(PTSTMICRO pTst);
147
148
149
150DECLASM(void) tstTrapHandlerNoErr(void);
151DECLASM(void) tstTrapHandler(void);
152DECLASM(void) tstInterrupt42(void);
153
154RT_C_DECLS_END
155
156#endif /* !VMM_INCLUDED_SRC_testcase_tstMicro_h */
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