| 1 | /* $Id: DrvAcpiCpu.cpp 25893 2010-01-18 14:08:39Z vboxsync $ */
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| 2 | /** @file
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| 3 | * DrvAcpiCpu - ACPI CPU dummy driver for hotplugging.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 19 | * additional information or have any questions.
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| 20 | */
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| 21 |
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| 22 | /*******************************************************************************
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| 23 | * Header Files *
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| 24 | *******************************************************************************/
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| 25 | #define LOG_GROUP LOG_GROUP_DRV_ACPI
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| 26 |
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| 27 | #include <VBox/pdmdrv.h>
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| 28 | #include <VBox/log.h>
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| 29 | #include <iprt/assert.h>
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| 30 | #include <iprt/string.h>
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| 31 |
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| 32 | #include "Builtins.h"
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| 33 |
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| 34 | /**
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| 35 | * Queries an interface to the driver.
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| 36 | *
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| 37 | * @returns Pointer to interface.
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| 38 | * @returns NULL if the interface was not supported by the driver.
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| 39 | * @param pInterface Pointer to this interface structure.
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| 40 | * @param enmInterface The requested interface identification.
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| 41 | * @thread Any thread.
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| 42 | */
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| 43 | static DECLCALLBACK(void *) drvACPICpuQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface)
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| 44 | {
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| 45 | PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
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| 46 |
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| 47 | switch (enmInterface)
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| 48 | {
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| 49 | case PDMINTERFACE_BASE:
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| 50 | return &pDrvIns->IBase;
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| 51 | default:
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| 52 | return NULL;
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| 53 | }
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| 54 | }
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| 55 |
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| 56 | /**
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| 57 | * Destruct a driver instance.
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| 58 | *
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| 59 | * Most VM resources are freed by the VM. This callback is provided so that any non-VM
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| 60 | * resources can be freed correctly.
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| 61 | *
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| 62 | * @param pDrvIns The driver instance data.
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| 63 | */
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| 64 | static DECLCALLBACK(void) drvACPICpuDestruct(PPDMDRVINS pDrvIns)
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| 65 | {
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| 66 | LogFlow(("drvACPICpuDestruct\n"));
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| 67 | }
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| 68 |
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| 69 | /**
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| 70 | * Construct an ACPI CPU driver instance.
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| 71 | *
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| 72 | * @copydoc FNPDMDRVCONSTRUCT
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| 73 | */
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| 74 | static DECLCALLBACK(int) drvACPICpuConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle, uint32_t fFlags)
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| 75 | {
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| 76 | /*
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| 77 | * Init the static parts.
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| 78 | */
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| 79 | /* IBase */
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| 80 | pDrvIns->IBase.pfnQueryInterface = drvACPICpuQueryInterface;
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| 81 |
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| 82 | /*
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| 83 | * Validate the config.
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| 84 | */
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| 85 | if (!CFGMR3AreValuesValid(pCfgHandle, "\0"))
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| 86 | return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
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| 87 |
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| 88 | /*
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| 89 | * Check that no-one is attached to us.
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| 90 | */
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| 91 | AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
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| 92 | ("Configuration error: Not possible to attach anything to this driver!\n"),
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| 93 | VERR_PDM_DRVINS_NO_ATTACH);
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| 94 |
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| 95 | return VINF_SUCCESS;
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| 96 | }
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| 97 |
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| 98 | /**
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| 99 | * ACPI CPU driver registration record.
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| 100 | */
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| 101 | const PDMDRVREG g_DrvAcpiCpu =
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| 102 | {
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| 103 | /* u32Version */
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| 104 | PDM_DRVREG_VERSION,
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| 105 | /* szDriverName */
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| 106 | "ACPICpu",
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| 107 | /* szRCMod */
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| 108 | "",
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| 109 | /* szR0Mod */
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| 110 | "",
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| 111 | /* pszDescription */
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| 112 | "ACPI CPU Driver",
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| 113 | /* fFlags */
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| 114 | PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
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| 115 | /* fClass. */
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| 116 | PDM_DRVREG_CLASS_ACPI,
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| 117 | /* cMaxInstances */
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| 118 | ~0,
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| 119 | /* cbInstance */
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| 120 | sizeof(PDMDRVINS),
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| 121 | /* pfnConstruct */
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| 122 | drvACPICpuConstruct,
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| 123 | /* pfnDestruct */
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| 124 | drvACPICpuDestruct,
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| 125 | /* pfnRelocate */
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| 126 | NULL,
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| 127 | /* pfnIOCtl */
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| 128 | NULL,
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| 129 | /* pfnPowerOn */
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| 130 | NULL,
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| 131 | /* pfnReset */
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| 132 | NULL,
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| 133 | /* pfnSuspend */
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| 134 | NULL,
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| 135 | /* pfnResume */
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| 136 | NULL,
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| 137 | /* pfnAttach */
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| 138 | NULL,
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| 139 | /* pfnDetach */
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| 140 | NULL,
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| 141 | /* pfnPowerOff */
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| 142 | NULL,
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| 143 | /* pfnSoftReset */
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| 144 | NULL,
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| 145 | /* u32EndVersion */
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| 146 | PDM_DRVREG_VERSION
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| 147 | };
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