Current File : //usr/src/vboxhost-7.0.26/vboxdrv/VBox/RTLogWriteVmm-amd64-x86.c
/* $Id: RTLogWriteVmm-amd64-x86.cpp 155244 2023-01-17 14:15:46Z bird $ */
/** @file
* IPRT - RTLogWriteVmm - AMD64 & X86 for VBox, inline GCC version for drivers.
*/
/*
* Copyright (C) 2022-2023 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/log.h>
#include "internal/iprt.h"
#include <VBox/vmm/cpuidcall.h>
RTDECL(void) RTLogWriteVmm(const char *pach, size_t cb, bool fRelease)
{
RTCCUINTREG uEAX, uEBX, uECX, uEDX, uESI;
#if (defined(PIC) || defined(__PIC__)) && defined(__i386__)
__asm__ __volatile__ ("xchgl %%ebx, %1\n\t"
"cpuid\n\t"
"xchgl %%ebx, %1\n\t"
: "=a" (uEAX)
, "=r" (uEBX)
, "=c" (uECX)
, "=d" (uEDX)
, "=S" (uESI)
: "0" (VBOX_CPUID_REQ_EAX_FIXED)
, "1" ((uint32_t)fRelease)
, "2" (VBOX_CPUID_REQ_ECX_FIXED | VBOX_CPUID_FN_LOG)
, "3" (cb)
, "4" (pach));
#else
__asm__ __volatile__ ("cpuid\n\t"
: "=a" (uEAX)
, "=b" (uEBX)
, "=c" (uECX)
, "=d" (uEDX)
, "=S" (uESI)
: "0" (VBOX_CPUID_REQ_EAX_FIXED)
, "1" ((uint32_t)fRelease)
, "2" (VBOX_CPUID_REQ_ECX_FIXED | VBOX_CPUID_FN_LOG)
, "3" (cb)
, "4" (pach));
#endif
}
RT_EXPORT_SYMBOL(RTLogWriteVmm);
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