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/* $Id: tstMicro.h $ */
/** @file
* Micro Testcase, profiling special CPU operations.
*/
/*
* 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>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef VMM_INCLUDED_SRC_testcase_tstMicro_h
#define VMM_INCLUDED_SRC_testcase_tstMicro_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/**
* The testcase identifier.
*/
typedef enum TSTMICROTEST
{
TSTMICROTEST_OVERHEAD = 0,
TSTMICROTEST_INVLPG_0,
TSTMICROTEST_INVLPG_EIP,
TSTMICROTEST_INVLPG_ESP,
TSTMICROTEST_CR3_RELOAD,
TSTMICROTEST_WP_DISABLE,
TSTMICROTEST_WP_ENABLE,
TSTMICROTEST_TRAP_FIRST,
TSTMICROTEST_PF_R0 = TSTMICROTEST_TRAP_FIRST,
TSTMICROTEST_PF_R1,
TSTMICROTEST_PF_R2,
TSTMICROTEST_PF_R3,
/** The max testcase. */
TSTMICROTEST_MAX
} TSTMICROTEST;
/**
*
*/
typedef struct TSTMICRORESULT
{
/** The total number of ticks spent executing the testcase.
* This may include extra overhead stuff if we're weird stuff during trap handler. */
uint64_t cTotalTicks;
/** Number of ticks spent getting into Rx from R0.
* This will include time spent setting up the testcase in R3. */
uint64_t cToRxFirstTicks;
/** Number of ticks spent executing the trap.
* I.e. from right before trapping instruction to the start of the trap handler.
* This does not apply to testcases which doesn't trap. */
uint64_t cTrapTicks;
/** Number of ticks spent resuming Rx executing after a trap.
* This does not apply to testcases which doesn't trap. */
uint64_t cToRxTrapTicks;
/** Number of ticks to get to back to r0 after resuming the trapped code.
* This does not apply to testcases which doesn't trap. */
uint64_t cToR0Ticks;
} TSTMICRORESULT, *PTSTMICRORESULT;
/**
* Micro profiling testcase
*/
typedef struct TSTMICRO
{
/** The RC address of this structure. */
RTRCPTR RCPtr;
/** Just for proper alignment. */
RTRCPTR RCPtrStack;
/** TSC sampled right before leaving R0. */
uint64_t u64TSCR0Start;
/** TSC sampled right before the exception. */
uint64_t u64TSCRxStart;
/** TSC sampled right after entering the trap handler. */
uint64_t u64TSCR0Enter;
/** TSC sampled right before exitting the trap handler. */
uint64_t u64TSCR0Exit;
/** TSC sampled right after resuming guest trap. */
uint64_t u64TSCRxEnd;
/** TSC sampled right after re-entering R0. */
uint64_t u64TSCR0End;
/** Number of times entered (should be one). */
uint32_t cHits;
/** Advance EIP. */
int32_t offEIPAdd;
/** The last CR3 code. */
uint32_t u32CR2;
/** The last error code. */
uint32_t u32ErrCd;
/** The last trap eip. */
uint32_t u32EIP;
/** The original IDT address and limit. */
VBOXIDTR OriginalIDTR;
/** Our IDT. */
VBOXIDTE aIDT[256];
/** The overhead for the rdtsc + 2 xchg instr. */
uint64_t u64Overhead;
/** The testresults. */
TSTMICRORESULT aResults[TSTMICROTEST_MAX];
/** Ring-3 stack. */
uint8_t au8Stack[4096];
} TSTMICRO, *PTSTMICRO;
RT_C_DECLS_BEGIN
DECLASM(void) idtOnly42(PTSTMICRO pTst);
DECLASM(void) tstOverhead(PTSTMICRO pTst);
DECLASM(void) tstInvlpg0(PTSTMICRO pTst);
DECLASM(void) tstInvlpgEIP(PTSTMICRO pTst);
DECLASM(void) tstInvlpgESP(PTSTMICRO pTst);
DECLASM(void) tstCR3Reload(PTSTMICRO pTst);
DECLASM(void) tstWPEnable(PTSTMICRO pTst);
DECLASM(void) tstWPDisable(PTSTMICRO pTst);
DECLASM(int) tstPFR0(PTSTMICRO pTst);
DECLASM(int) tstPFR1(PTSTMICRO pTst);
DECLASM(int) tstPFR2(PTSTMICRO pTst);
DECLASM(int) tstPFR3(PTSTMICRO pTst);
DECLASM(void) tstTrapHandlerNoErr(void);
DECLASM(void) tstTrapHandler(void);
DECLASM(void) tstInterrupt42(void);
RT_C_DECLS_END
#endif /* !VMM_INCLUDED_SRC_testcase_tstMicro_h */
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