1 | /* $Id: bs3-cmn-ExtCtxGetYmm.c 102096 2023-11-15 11:11:59Z vboxsync $ */
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2 | /** @file
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3 | * BS3Kit - Bs3ExtCtxGetYmm
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2007-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * The contents of this file may alternatively be used under the terms
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26 | * of the Common Development and Distribution License Version 1.0
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27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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28 | * in the VirtualBox distribution, in which case the provisions of the
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29 | * CDDL are applicable instead of those of the GPL.
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30 | *
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31 | * You may elect to license modified versions of this file under the
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32 | * terms and conditions of either the GPL or the CDDL or both.
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33 | *
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34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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35 | */
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36 |
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37 |
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38 | /*********************************************************************************************************************************
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39 | * Header Files *
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40 | *********************************************************************************************************************************/
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41 | #include "bs3kit-template-header.h"
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42 |
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43 |
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44 | #undef Bs3ExtCtxGetYmm
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45 | BS3_CMN_DEF(PRTUINT256U, Bs3ExtCtxGetYmm,(PCBS3EXTCTX pExtCtx, uint8_t iReg, PRTUINT256U pValue))
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46 | {
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47 | #ifdef _MSC_VER /* No-SSE hack */
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48 | RTUINT256U volatile RT_FAR *pValueNoSseHack = (RTUINT256U volatile RT_FAR *)pValue; /* No-SSE hack */
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49 | # define pValue pValueNoSseHack
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50 | #endif
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51 | pValue->au64[0] = 0;
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52 | pValue->au64[1] = 0;
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53 | pValue->au64[2] = 0;
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54 | pValue->au64[3] = 0;
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55 |
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56 | switch (pExtCtx->enmMethod)
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57 | {
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58 | case BS3EXTCTXMETHOD_FXSAVE:
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59 | if (iReg < RT_ELEMENTS(pExtCtx->Ctx.x87.aXMM))
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60 | {
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61 | pValue->au64[0] = pExtCtx->Ctx.x87.aXMM[iReg].uXmm.au64[0];
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62 | pValue->au64[1] = pExtCtx->Ctx.x87.aXMM[iReg].uXmm.au64[1];
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63 | }
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64 | break;
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65 |
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66 | case BS3EXTCTXMETHOD_XSAVE:
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67 | if (iReg < RT_ELEMENTS(pExtCtx->Ctx.x.x87.aXMM))
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68 | {
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69 | pValue->au64[0] = pExtCtx->Ctx.x87.aXMM[iReg].uXmm.au64[0];
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70 | pValue->au64[1] = pExtCtx->Ctx.x87.aXMM[iReg].uXmm.au64[1];
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71 | if (pExtCtx->fXcr0Nominal & XSAVE_C_YMM)
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72 | {
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73 | pValue->au64[2] = pExtCtx->Ctx.x.u.YmmHi.aYmmHi[iReg].uXmm.au64[0];
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74 | pValue->au64[3] = pExtCtx->Ctx.x.u.YmmHi.aYmmHi[iReg].uXmm.au64[1];
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75 | }
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76 | }
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77 | break;
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78 | }
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79 | return (PRTUINT256U)pValue;
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80 | }
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81 |
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