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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Runtime/generic/RTMpGetDescription-generic.cpp | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/VBox/Runtime/generic/RTMpGetDescription-generic.cpp | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/VBox/Runtime/generic/RTMpGetDescription-generic.cpp b/src/VBox/Runtime/generic/RTMpGetDescription-generic.cpp new file mode 100644 index 00000000..efbe5e16 --- /dev/null +++ b/src/VBox/Runtime/generic/RTMpGetDescription-generic.cpp @@ -0,0 +1,124 @@ +/* $Id: RTMpGetDescription-generic.cpp $ */ +/** @file + * IPRT - Multiprocessor, Generic RTMpGetDescription. + */ + +/* + * 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/mp.h> +#include "internal/iprt.h" +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) +# include <iprt/asm-amd64-x86.h> +#endif +#include <iprt/err.h> +#include <iprt/string.h> + + + +/** + * Returns "Unknown" as description. + * + * @returns VERR_BUFFER_OVERFLOW or VINF_SUCCESS. + * @param pszBuf Output buffer. + * @param cbBuf Buffer size. + */ +static int rtMpGetDescriptionUnknown(char *pszBuf, size_t cbBuf) +{ + static const char s_szUnknown[] = "Unknown"; + if (cbBuf < sizeof(s_szUnknown)) + return VERR_BUFFER_OVERFLOW; + memcpy(pszBuf, s_szUnknown, sizeof(s_szUnknown)); + return VINF_SUCCESS; +} + + +RTDECL(int) RTMpGetDescription(RTCPUID idCpu, char *pszBuf, size_t cbBuf) +{ + /* + * Check that the specified cpu is valid & online. + */ + if (idCpu != NIL_RTCPUID && !RTMpIsCpuOnline(idCpu)) + return RTMpIsCpuPossible(idCpu) + ? VERR_CPU_OFFLINE + : VERR_CPU_NOT_FOUND; + + /* + * Construct the description string in a temporary buffer. + */ + char szString[4*4*3+1]; + RT_ZERO(szString); +#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) + if (!ASMHasCpuId()) + return rtMpGetDescriptionUnknown(pszBuf, cbBuf); + + uint32_t uMax; + uint32_t uEBX, uECX, uEDX; + ASMCpuId(0x80000000, &uMax, &uEBX, &uECX, &uEDX); + if (uMax >= 0x80000002) + { + ASMCpuId(0x80000002, &szString[0 + 0], &szString[0 + 4], &szString[0 + 8], &szString[0 + 12]); + if (uMax >= 0x80000003) + ASMCpuId(0x80000003, &szString[16 + 0], &szString[16 + 4], &szString[16 + 8], &szString[16 + 12]); + if (uMax >= 0x80000004) + ASMCpuId(0x80000004, &szString[32 + 0], &szString[32 + 4], &szString[32 + 8], &szString[32 + 12]); + } + else + { + ASMCpuId(0x00000000, &uMax, &uEBX, &uECX, &uEDX); + ((uint32_t *)&szString[0])[0] = uEBX; + ((uint32_t *)&szString[0])[1] = uEDX; + ((uint32_t *)&szString[0])[2] = uECX; + } + +#elif defined(RT_ARCH_ARM64) + RTCCINTREG uFreq; + +#else +# error "PORTME or use RTMpGetDescription-generic-stub.cpp." +#endif + + /* + * Copy it out into the buffer supplied by the caller. + */ + char *pszSrc = RTStrStrip(szString); + size_t cchSrc = strlen(pszSrc); + if (cchSrc >= cbBuf) + return VERR_BUFFER_OVERFLOW; + memcpy(pszBuf, pszSrc, cchSrc + 1); + return VINF_SUCCESS; +} +RT_EXPORT_SYMBOL(RTMpGetDescription); + |