| 1 | /* $Id: DrvAcpiCpu.cpp 106061 2024-09-16 14:03:52Z 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) 2006-2024 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 |
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| 29 | /*********************************************************************************************************************************
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| 30 | * Header Files *
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| 31 | *********************************************************************************************************************************/
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| 32 | #define LOG_GROUP LOG_GROUP_DRV_ACPI
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| 33 |
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| 34 | #include <VBox/vmm/pdmdrv.h>
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| 35 | #include <VBox/log.h>
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| 36 | #include <iprt/assert.h>
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| 37 | #include <iprt/string.h>
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| 38 | #include <iprt/uuid.h>
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| 39 |
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| 40 | #include "VBoxDD.h"
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| 41 |
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| 42 |
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| 43 | /**
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| 44 | * @interface_method_impl{PDMIBASE,pfnQueryInterface}
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| 45 | */
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| 46 | static DECLCALLBACK(void *) drvACPICpuQueryInterface(PPDMIBASE pInterface, const char *pszIID)
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| 47 | {
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| 48 | PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
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| 49 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
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| 50 | return NULL;
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| 51 | }
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| 52 |
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| 53 | /**
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| 54 | * Construct an ACPI CPU driver instance.
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| 55 | *
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| 56 | * @copydoc FNPDMDRVCONSTRUCT
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| 57 | */
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| 58 | static DECLCALLBACK(int) drvACPICpuConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
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| 59 | {
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| 60 | RT_NOREF(pCfg, fFlags);
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| 61 | PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
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| 62 |
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| 63 | /*
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| 64 | * Init the static parts.
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| 65 | */
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| 66 | /* IBase */
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| 67 | pDrvIns->IBase.pfnQueryInterface = drvACPICpuQueryInterface;
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| 68 |
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| 69 | /*
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| 70 | * Validate the config.
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| 71 | */
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| 72 | PDMDRV_VALIDATE_CONFIG_RETURN(pDrvIns, "", "");
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| 73 |
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| 74 | /*
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| 75 | * Check that no-one is attached to us.
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| 76 | */
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| 77 | AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
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| 78 | ("Configuration error: Not possible to attach anything to this driver!\n"),
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| 79 | VERR_PDM_DRVINS_NO_ATTACH);
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| 80 |
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| 81 | return VINF_SUCCESS;
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| 82 | }
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| 83 |
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| 84 | /**
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| 85 | * ACPI CPU driver registration record.
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| 86 | */
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| 87 | const PDMDRVREG g_DrvAcpiCpu =
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| 88 | {
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| 89 | /* u32Version */
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| 90 | PDM_DRVREG_VERSION,
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| 91 | /* szName */
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| 92 | "ACPICpu",
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| 93 | /* szRCMod */
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| 94 | "",
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| 95 | /* szR0Mod */
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| 96 | "",
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| 97 | /* pszDescription */
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| 98 | "ACPI CPU Driver",
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| 99 | /* fFlags */
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| 100 | PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
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| 101 | /* fClass. */
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| 102 | PDM_DRVREG_CLASS_ACPI,
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| 103 | /* cMaxInstances */
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| 104 | ~0U,
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| 105 | /* cbInstance */
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| 106 | sizeof(PDMDRVINS),
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| 107 | /* pfnConstruct */
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| 108 | drvACPICpuConstruct,
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| 109 | /* pfnDestruct */
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| 110 | NULL,
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| 111 | /* pfnRelocate */
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| 112 | NULL,
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| 113 | /* pfnIOCtl */
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| 114 | NULL,
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| 115 | /* pfnPowerOn */
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| 116 | NULL,
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| 117 | /* pfnReset */
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| 118 | NULL,
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| 119 | /* pfnSuspend */
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| 120 | NULL,
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| 121 | /* pfnResume */
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| 122 | NULL,
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| 123 | /* pfnAttach */
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| 124 | NULL,
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| 125 | /* pfnDetach */
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| 126 | NULL,
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| 127 | /* pfnPowerOff */
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| 128 | NULL,
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| 129 | /* pfnSoftReset */
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| 130 | NULL,
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| 131 | /* u32EndVersion */
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| 132 | PDM_DRVREG_VERSION
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| 133 | };
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