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Diffstat (limited to '')
-rw-r--r-- | src/VBox/ValidationKit/utils/cpu/xmmsaving.cpp | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/utils/cpu/xmmsaving.cpp b/src/VBox/ValidationKit/utils/cpu/xmmsaving.cpp new file mode 100644 index 00000000..a8d377f8 --- /dev/null +++ b/src/VBox/ValidationKit/utils/cpu/xmmsaving.cpp @@ -0,0 +1,130 @@ +/* $Id: xmmsaving.cpp $ */ +/** @file + * xmmsaving - Test that all XMM register state is handled correctly and + * not corrupted the VMM. + */ + +/* + * Copyright (C) 2009-2023 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 + */ + + +/********************************************************************************************************************************* +* 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); +} + |