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/* $Id: xmmsaving.cpp $ */
/** @file
* xmmsaving - Test that all XMM register state is handled correctly and
* not corrupted the VMM.
*/
/*
* Copyright (C) 2009-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE 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.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/test.h>
#include <iprt/x86.h>
/*********************************************************************************************************************************
* Structures and Typedefs *
*********************************************************************************************************************************/
typedef struct MYXMMREGSET
{
RTUINT128U aRegs[16];
} MYXMMREGSET;
DECLASM(int) XmmSavingTestLoadSet(const MYXMMREGSET *pSet, const MYXMMREGSET *pPrevSet, PRTUINT128U pBadVal);
static void XmmSavingTest(void)
{
RTTestISub("xmm saving and restoring");
/* Create the test sets. */
static MYXMMREGSET s_aSets[256];
for (unsigned s = 0; s < RT_ELEMENTS(s_aSets); s++)
{
for (unsigned r = 0; r < RT_ELEMENTS(s_aSets[s].aRegs); r++)
{
unsigned x = (s << 4) | r;
s_aSets[s].aRegs[r].au32[0] = x | UINT32_C(0x12345000);
s_aSets[s].aRegs[r].au32[1] = (x << 8) | UINT32_C(0x88700011);
s_aSets[s].aRegs[r].au32[2] = (x << 16) | UINT32_C(0xe000dcba);
s_aSets[s].aRegs[r].au32[3] = (x << 20) | UINT32_C(0x00087654);
}
}
/* Do the actual testing. */
const MYXMMREGSET *pPrev2 = NULL;
const MYXMMREGSET *pPrev = NULL;
for (int i = 0; i < 1000000; i++)
{
if ((i % 50000) == 0)
{
RTTestIPrintf(RTTESTLVL_ALWAYS, ".");
pPrev = pPrev2 = NULL; /* May be trashed by the above call. */
}
for (unsigned s = 0; s < RT_ELEMENTS(s_aSets); s++)
{
RTUINT128U BadVal;
const MYXMMREGSET *pSet = &s_aSets[s];
int r = XmmSavingTestLoadSet(pSet, pPrev, &BadVal);
if (r-- != 0)
{
RTTestIFailed("i=%d s=%d r=%d", i, s, r);
RTTestIFailureDetails("XMM%-2d = %08x,%08x,%08x,%08x\n",
r,
BadVal.au32[0],
BadVal.au32[1],
BadVal.au32[2],
BadVal.au32[3]);
RTTestIFailureDetails("Expected %08x,%08x,%08x,%08x\n",
pPrev->aRegs[r].au32[0],
pPrev->aRegs[r].au32[1],
pPrev->aRegs[r].au32[2],
pPrev->aRegs[r].au32[3]);
if (pPrev2)
RTTestIFailureDetails("PrevPrev %08x,%08x,%08x,%08x\n",
pPrev2->aRegs[r].au32[0],
pPrev2->aRegs[r].au32[1],
pPrev2->aRegs[r].au32[2],
pPrev2->aRegs[r].au32[3]);
return;
}
pPrev2 = pPrev;
pPrev = pSet;
}
}
RTTestISubDone();
}
int main()
{
RTTEST hTest;
int rc = RTTestInitAndCreate("xmmsaving", &hTest);
if (rc)
return rc;
XmmSavingTest();
return RTTestSummaryAndDestroy(hTest);
}
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