1 files changed, 124 insertions, 0 deletions
diff --git a/src/VBox/Devices/PC/DrvAcpiCpu.cpp b/src/VBox/Devices/PC/DrvAcpiCpu.cpp
new file mode 100644
index 00000000..18dee20b
--- /dev/null
+++ b/src/VBox/Devices/PC/DrvAcpiCpu.cpp
@@ -0,0 +1,124 @@
+/* $Id: DrvAcpiCpu.cpp $ */
+/** @file
+ * DrvAcpiCpu - ACPI CPU dummy driver for hotplugging.
+ */
+
+/*
+ * Copyright (C) 2006-2020 Oracle Corporation
+ *
+ * This file is part of VirtualBox Open Source Edition (OSE), as
+ * available from http://www.virtualbox.org. This file is free software;
+ * you can redistribute it and/or modify it under the terms of the GNU
+ * General Public License (GPL) as published by the Free Software
+ * Foundation, in version 2 as it comes in the "COPYING" file of the
+ * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#define LOG_GROUP LOG_GROUP_DRV_ACPI
+
+#include <VBox/vmm/pdmdrv.h>
+#include <VBox/log.h>
+#include <iprt/assert.h>
+#include <iprt/string.h>
+#include <iprt/uuid.h>
+
+#include "VBoxDD.h"
+
+
+/**
+ * @interface_method_impl{PDMIBASE,pfnQueryInterface}
+ */
+static DECLCALLBACK(void *) drvACPICpuQueryInterface(PPDMIBASE pInterface, const char *pszIID)
+{
+    PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
+    PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
+    return NULL;
+}
+
+/**
+ * Construct an ACPI CPU driver instance.
+ *
+ * @copydoc FNPDMDRVCONSTRUCT
+ */
+static DECLCALLBACK(int) drvACPICpuConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
+{
+    RT_NOREF(fFlags);
+    PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
+
+    /*
+     * Init the static parts.
+     */
+    /* IBase */
+    pDrvIns->IBase.pfnQueryInterface = drvACPICpuQueryInterface;
+
+    /*
+     * Validate the config.
+     */
+    if (!CFGMR3AreValuesValid(pCfg, "\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,
+    /* szName */
+    "ACPICpu",
+    /* szRCMod */
+    "",
+    /* szR0Mod */
+    "",
+    /* pszDescription */
+    "ACPI CPU Driver",
+    /* fFlags */
+    PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
+    /* fClass. */
+    PDM_DRVREG_CLASS_ACPI,
+    /* cMaxInstances */
+    ~0U,
+    /* cbInstance */
+    sizeof(PDMDRVINS),
+    /* pfnConstruct */
+    drvACPICpuConstruct,
+    /* pfnDestruct */
+    NULL,
+    /* pfnRelocate */
+    NULL,
+    /* pfnIOCtl */
+    NULL,
+    /* pfnPowerOn */
+    NULL,
+    /* pfnReset */
+    NULL,
+    /* pfnSuspend */
+    NULL,
+    /* pfnResume */
+    NULL,
+    /* pfnAttach */
+    NULL,
+    /* pfnDetach */
+    NULL,
+    /* pfnPowerOff */
+    NULL,
+    /* pfnSoftReset */
+    NULL,
+    /* u32EndVersion */
+    PDM_DRVREG_VERSION
+};