Devices/PC/DrvAcpiCpu.cpp

	DrvAcpiCpu.cpp revision eb90548e8e40e597d65cdcc16ec958a3e09c1d73
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync/* $Id$ */
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync/** @file
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync * DrvAcpiCpu - ACPI CPU dummy driver for hotplugging.
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync */
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync/*
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync *
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync * available from http://www.virtualbox.org. This file is free software;
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * you can redistribute it and/or modify it under the terms of the GNU
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * General Public License (GPL) as published by the Free Software
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync *
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
4b9d6701570cb98fd36e209314239d104ec584d3vboxsync * additional information or have any questions.
62471ba48484cd8fc1a391298efc0ff1d83d370evboxsync */
e862981c2e186a4cb6a126557d57603cc100d448vboxsync
e862981c2e186a4cb6a126557d57603cc100d448vboxsync/*******************************************************************************
e862981c2e186a4cb6a126557d57603cc100d448vboxsync*   Header Files                                                               *
e862981c2e186a4cb6a126557d57603cc100d448vboxsync*******************************************************************************/
e862981c2e186a4cb6a126557d57603cc100d448vboxsync#define LOG_GROUP LOG_GROUP_DRV_ACPI
e862981c2e186a4cb6a126557d57603cc100d448vboxsync
e862981c2e186a4cb6a126557d57603cc100d448vboxsync#include <VBox/pdmdrv.h>
e862981c2e186a4cb6a126557d57603cc100d448vboxsync#include <VBox/log.h>
e862981c2e186a4cb6a126557d57603cc100d448vboxsync#include <iprt/assert.h>
e862981c2e186a4cb6a126557d57603cc100d448vboxsync#include <iprt/string.h>
e862981c2e186a4cb6a126557d57603cc100d448vboxsync
e862981c2e186a4cb6a126557d57603cc100d448vboxsync#include "Builtins.h"
e862981c2e186a4cb6a126557d57603cc100d448vboxsync
e862981c2e186a4cb6a126557d57603cc100d448vboxsync/**
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * Queries an interface to the driver.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync *
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * @returns Pointer to interface.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * @returns NULL if the interface was not supported by the driver.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * @param   pInterface          Pointer to this interface structure.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * @param   enmInterface        The requested interface identification.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * @thread  Any thread.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync */
e862981c2e186a4cb6a126557d57603cc100d448vboxsyncstatic DECLCALLBACK(void *) drvACPICpuQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface)
e862981c2e186a4cb6a126557d57603cc100d448vboxsync{
e862981c2e186a4cb6a126557d57603cc100d448vboxsync    PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
e862981c2e186a4cb6a126557d57603cc100d448vboxsync
e862981c2e186a4cb6a126557d57603cc100d448vboxsync    switch (enmInterface)
e862981c2e186a4cb6a126557d57603cc100d448vboxsync    {
e862981c2e186a4cb6a126557d57603cc100d448vboxsync        case PDMINTERFACE_BASE:
e862981c2e186a4cb6a126557d57603cc100d448vboxsync            return &pDrvIns->IBase;
e862981c2e186a4cb6a126557d57603cc100d448vboxsync        default:
e862981c2e186a4cb6a126557d57603cc100d448vboxsync            return NULL;
e862981c2e186a4cb6a126557d57603cc100d448vboxsync    }
e862981c2e186a4cb6a126557d57603cc100d448vboxsync}
e862981c2e186a4cb6a126557d57603cc100d448vboxsync
e862981c2e186a4cb6a126557d57603cc100d448vboxsync/**
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * Destruct a driver instance.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync *
4e664340a06cc85b77cd1e6bddcd5b2da558ddd5vboxsync * Most VM resources are freed by the VM. This callback is provided so that any non-VM
4e664340a06cc85b77cd1e6bddcd5b2da558ddd5vboxsync * resources can be freed correctly.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync *
e862981c2e186a4cb6a126557d57603cc100d448vboxsync * @param   pDrvIns     The driver instance data.
e862981c2e186a4cb6a126557d57603cc100d448vboxsync */
static DECLCALLBACK(void) drvACPICpuDestruct(PPDMDRVINS pDrvIns)
{
    LogFlow(("drvACPICpuDestruct\n"));
}

/**
 * Construct an ACPI CPU driver instance.
 *
 * @copydoc FNPDMDRVCONSTRUCT
 */
static DECLCALLBACK(int) drvACPICpuConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle, uint32_t fFlags)
{
    /*
     * Init the static parts.
     */
    /* IBase */
    pDrvIns->IBase.pfnQueryInterface = drvACPICpuQueryInterface;

    /*
     * Validate the config.
     */
    if (!CFGMR3AreValuesValid(pCfgHandle, "\0"))
        return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;

    /*
     * Check that no-one is attached to us.
     */
    AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
                    ("Configuration error: Not possible to attach anything to this driver!\n"),
                    VERR_PDM_DRVINS_NO_ATTACH);

    return VINF_SUCCESS;
}

/**
 * ACPI CPU driver registration record.
 */
const PDMDRVREG g_DrvAcpiCpu =
{
    /* u32Version */
    PDM_DRVREG_VERSION,
    /* szDriverName */
    "ACPICpu",
    /* pszDescription */
    "ACPI CPU Driver",
    /* fFlags */
    PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
    /* fClass. */
    PDM_DRVREG_CLASS_ACPI,
    /* cMaxInstances */
    ~0,
    /* cbInstance */
    sizeof(PDMDRVINS),
    /* pfnConstruct */
    drvACPICpuConstruct,
    /* pfnDestruct */
    drvACPICpuDestruct,
    /* pfnIOCtl */
    NULL,
    /* pfnPowerOn */
    NULL,
    /* pfnReset */
    NULL,
    /* pfnSuspend */
    NULL,
    /* pfnResume */
    NULL,
    /* pfnAttach */
    NULL,
    /* pfnDetach */
    NULL,
    /* pfnPowerOff */
    NULL,
    /* pfnSoftReset */
    NULL,
    /* u32EndVersion */
    PDM_DRVREG_VERSION
};