Support/solaris/SUPLib-solaris.cpp

	SUPLib-solaris.cpp revision 2456bf2fd0d999aec48bbfeeb60de9005aaf2f6e
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync/* $Id$ */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync/** @file
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * VirtualBox Support Library - Solaris specific parts.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync/*
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync *
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * available from http://www.virtualbox.org. This file is free software;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * you can redistribute it and/or modify it under the terms of the GNU
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * General Public License (GPL) as published by the Free Software
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync *
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * The contents of this file may alternatively be used under the terms
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * of the Common Development and Distribution License Version 1.0
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * VirtualBox OSE distribution, in which case the provisions of the
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * CDDL are applicable instead of those of the GPL.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync *
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * You may elect to license modified versions of this file under the
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * terms and conditions of either the GPL or the CDDL or both.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync *
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync * additional information or have any questions.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync/*******************************************************************************
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync*   Header Files                                                               *
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync*******************************************************************************/
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#define LOG_GROUP LOG_GROUP_SUP
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#ifdef IN_SUP_HARDENED_R3
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync# undef DEBUG /* Warning: disables RT_STRICT */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync# define LOG_DISABLED
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync  /** @todo RTLOGREL_DISABLED */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync# include <iprt/log.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync# undef LogRelIt
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync# define LogRelIt(pvInst, fFlags, iGroup, fmtargs) do { } while (0)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#endif
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <VBox/types.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <VBox/sup.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <VBox/param.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <VBox/err.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <VBox/log.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <iprt/path.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <iprt/assert.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <iprt/mem.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <iprt/err.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <iprt/string.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include "../SUPLibInternal.h"
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include "../SUPDrvIOC.h"
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <sys/fcntl.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <sys/ioctl.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <fcntl.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <errno.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <unistd.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <sys/mman.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <stdlib.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#include <stdio.h>
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync/*******************************************************************************
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync*   Defined Constants And Macros                                               *
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync*******************************************************************************/
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync/** Solaris device link. */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#define DEVICE_NAME     "/dev/vboxdrv"
68fb2428898c55a7172e6a75a0a8d7ce259919bdvboxsync
68fb2428898c55a7172e6a75a0a8d7ce259919bdvboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsyncint suplibOsInit(PSUPLIBDATA pThis, bool fPreInited)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync{
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    /*
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync     * Nothing to do if pre-inited.
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync     */
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync    if (fPreInited)
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync        return VINF_SUCCESS;
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync#ifdef VBOXFLT_DUMMYFILES
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync    /*
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync     * Open dummy files to preallocate file descriptors, see #4650.
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync     */
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync    for (int i = 0; i < VBOXFLT_DUMMYFILES; i++)
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync    {
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync        int hDummy = open("/dev/null", O_RDWR, 0);
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync        fcntl(hDummy, F_SETFD, FD_CLOEXEC);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        if (hDummy >= 0)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            pThis->hDummy[i] = hDummy;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        else
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        {
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            pThis->hDummy[i] = -1;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            LogRel(("Failed to open[%d] /dev/null! errno=%d\n", i, errno));
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#endif
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    /*
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync     * Try to open the device.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync     */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    int hDevice = open(DEVICE_NAME, O_RDWR, 0);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    if (hDevice < 0)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    {
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        int rc;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        switch (errno)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        {
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            case ENODEV:    rc = VERR_VM_DRIVER_LOAD_ERROR; break;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            case EPERM:
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            case EACCES:    rc = VERR_VM_DRIVER_NOT_ACCESSIBLE; break;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            case ENOENT:    rc = VERR_VM_DRIVER_NOT_INSTALLED; break;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            default:        rc = VERR_VM_DRIVER_OPEN_ERROR; break;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        LogRel(("Failed to open \"%s\", errno=%d, rc=%Rrc\n", DEVICE_NAME, errno, rc));
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        return rc;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    /*
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync     * Mark the file handle close on exec.
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync     */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    if (fcntl(hDevice, F_SETFD, FD_CLOEXEC) != 0)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    {
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#ifdef IN_SUP_HARDENED_R3
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        int rc = VERR_INTERNAL_ERROR;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#else
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        int err = errno;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        int rc = RTErrConvertFromErrno(err);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        LogRel(("suplibOSInit: setting FD_CLOEXEC failed, errno=%d (%Rrc)\n", err, rc));
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#endif
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        close(hDevice);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        return rc;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    pThis->hDevice = hDevice;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return VINF_SUCCESS;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync#ifndef IN_SUP_HARDENED_R3
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsyncint suplibOsTerm(PSUPLIBDATA pThis)
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync{
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync#ifdef VBOXFLT_DUMMYFILES
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync    /*
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync     * Close the dummy files first.
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync     */
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync    for (int i = 0; i < VBOXFLT_DUMMYFILES; i++)
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync    {
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync        if (pThis->hDummy[i] != -1)
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync        {
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync            close(pThis->hDummy[i]);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            pThis->hDummy[i] = -1;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#endif
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    /*
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync     * Check if we're initialized
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync     */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    if (pThis->hDevice != NIL_RTFILE)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    {
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        if (close(pThis->hDevice))
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync            AssertFailed();
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync        pThis->hDevice = NIL_RTFILE;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    }
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return VINF_SUCCESS;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync
2a0a20dee7f474c26cc8f6f9d7aa12c345c2b73bvboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsyncint suplibOsInstall(void)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync{
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return VERR_NOT_IMPLEMENTED;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsyncint suplibOsUninstall(void)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync{
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return VERR_NOT_IMPLEMENTED;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsyncint suplibOsIOCtl(PSUPLIBDATA pThis, uintptr_t uFunction, void *pvReq, size_t cbReq)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync{
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    if (RT_LIKELY(ioctl(pThis->hDevice, uFunction, pvReq) >= 0))
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        return VINF_SUCCESS;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return RTErrConvertFromErrno(errno);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsyncint suplibOsIOCtlFast(PSUPLIBDATA pThis, uintptr_t uFunction, uintptr_t idCpu)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync{
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    int rc = ioctl(pThis->hDevice, uFunction, idCpu);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    if (rc == -1)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        rc = errno;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return rc;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsyncint suplibOsPageAlloc(PSUPLIBDATA pThis, size_t cPages, void **ppvPages)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync{
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    NOREF(pThis);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    *ppvPages = mmap(NULL, cPages * PAGE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE,
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync                     MAP_PRIVATE | MAP_ANON, -1, 0);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    if (*ppvPages != (void *)-1)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        return VINF_SUCCESS;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    if (errno == EAGAIN)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync        return VERR_NO_MEMORY;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return RTErrConvertFromErrno(errno);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsyncint suplibOsPageFree(PSUPLIBDATA pThis, void *pvPages, size_t cPages)
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync{
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    NOREF(pThis);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    munmap(pvPages, cPages * PAGE_SIZE);
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync    return VINF_SUCCESS;
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync}
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync#endif /* !IN_SUP_HARDENED_R3 */
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync
e52b0dfe3d9ead70e24f2ce4ed3faa6c79c00618vboxsync