| 1 | /* $Id: VBoxGuestR3LibCpuHotPlug.cpp 27083 2010-03-05 13:05:51Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, CPU Hot Plugging.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2010 Sun Microsystems, Inc.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | *
|
|---|
| 26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 28 | * additional information or have any questions.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 |
|
|---|
| 32 | /*******************************************************************************
|
|---|
| 33 | * Header Files *
|
|---|
| 34 | *******************************************************************************/
|
|---|
| 35 | #include "VBGLR3Internal.h"
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | /**
|
|---|
| 39 | * Initialize CPU hot plugging.
|
|---|
| 40 | *
|
|---|
| 41 | * This will enable the CPU hot plugging events.
|
|---|
| 42 | *
|
|---|
| 43 | * @returns VBox status code.
|
|---|
| 44 | */
|
|---|
| 45 | VBGLR3DECL(int) VbglR3CpuHotPlugInit(void)
|
|---|
| 46 | {
|
|---|
| 47 | int rc = VbglR3CtlFilterMask(VMMDEV_EVENT_CPU_HOTPLUG, 0);
|
|---|
| 48 | if (RT_FAILURE(rc))
|
|---|
| 49 | return rc;
|
|---|
| 50 |
|
|---|
| 51 | VMMDevCpuHotPlugStatusRequest Req;
|
|---|
| 52 | vmmdevInitRequest(&Req.header, VMMDevReq_SetCpuHotPlugStatus);
|
|---|
| 53 | Req.enmStatusType = VMMDevCpuStatusType_Enable;
|
|---|
| 54 | rc = vbglR3GRPerform(&Req.header);
|
|---|
| 55 | if (RT_FAILURE(rc))
|
|---|
| 56 | VbglR3CtlFilterMask(0, VMMDEV_EVENT_CPU_HOTPLUG);
|
|---|
| 57 |
|
|---|
| 58 | return rc;
|
|---|
| 59 | }
|
|---|
| 60 |
|
|---|
| 61 |
|
|---|
| 62 | /**
|
|---|
| 63 | * Terminate CPU hot plugging.
|
|---|
| 64 | *
|
|---|
| 65 | * This will disable the CPU hot plugging events.
|
|---|
| 66 | *
|
|---|
| 67 | * @returns VBox status.
|
|---|
| 68 | */
|
|---|
| 69 | VBGLR3DECL(int) VbglR3CpuHotPlugTerm(void)
|
|---|
| 70 | {
|
|---|
| 71 | /* Clear the events. */
|
|---|
| 72 | VbglR3CtlFilterMask(0, VMMDEV_EVENT_CPU_HOTPLUG);
|
|---|
| 73 |
|
|---|
| 74 | VMMDevCpuHotPlugStatusRequest Req;
|
|---|
| 75 | vmmdevInitRequest(&Req.header, VMMDevReq_SetCpuHotPlugStatus);
|
|---|
| 76 | Req.enmStatusType = VMMDevCpuStatusType_Disable;
|
|---|
| 77 | return vbglR3GRPerform(&Req.header);
|
|---|
| 78 | }
|
|---|
| 79 |
|
|---|
| 80 |
|
|---|
| 81 | /**
|
|---|
| 82 | * Waits for a CPU hot plugging event and retrive the data associated with it.
|
|---|
| 83 | *
|
|---|
| 84 | * @returns VBox status code.
|
|---|
| 85 | * @param penmEventType Where to store the event type on success.
|
|---|
| 86 | * @param pidCpuCore Where to store the CPU core ID on success.
|
|---|
| 87 | * @param pidCpuPackage Where to store the CPU package ID on success.
|
|---|
| 88 | */
|
|---|
| 89 | VBGLR3DECL(int) VbglR3CpuHotPlugWaitForEvent(VMMDevCpuEventType *penmEventType, uint32_t *pidCpuCore, uint32_t *pidCpuPackage)
|
|---|
| 90 | {
|
|---|
| 91 | AssertPtrReturn(penmEventType, VERR_INVALID_POINTER);
|
|---|
| 92 | AssertPtrReturn(pidCpuCore, VERR_INVALID_POINTER);
|
|---|
| 93 | AssertPtrReturn(pidCpuPackage, VERR_INVALID_POINTER);
|
|---|
| 94 |
|
|---|
| 95 | VBoxGuestWaitEventInfo waitEvent;
|
|---|
| 96 | waitEvent.u32TimeoutIn = RT_INDEFINITE_WAIT;
|
|---|
| 97 | waitEvent.u32EventMaskIn = VMMDEV_EVENT_CPU_HOTPLUG;
|
|---|
| 98 | waitEvent.u32Result = VBOXGUEST_WAITEVENT_ERROR;
|
|---|
| 99 | waitEvent.u32EventFlagsOut = 0;
|
|---|
| 100 | int rc = vbglR3DoIOCtl(VBOXGUEST_IOCTL_WAITEVENT, &waitEvent, sizeof(waitEvent));
|
|---|
| 101 | if (RT_SUCCESS(rc))
|
|---|
| 102 | {
|
|---|
| 103 | /* did we get the right event? */
|
|---|
| 104 | if (waitEvent.u32EventFlagsOut & VMMDEV_EVENT_CPU_HOTPLUG)
|
|---|
| 105 | {
|
|---|
| 106 | VMMDevGetCpuHotPlugRequest Req;
|
|---|
| 107 |
|
|---|
| 108 | /* get the CPU hot plugging request */
|
|---|
| 109 | vmmdevInitRequest(&Req.header, VMMDevReq_GetCpuHotPlugRequest);
|
|---|
| 110 | Req.idCpuCore = UINT32_MAX;
|
|---|
| 111 | Req.idCpuPackage = UINT32_MAX;
|
|---|
| 112 | Req.enmEventType = VMMDevCpuEventType_None;
|
|---|
| 113 | rc = vbglR3GRPerform(&Req.header);
|
|---|
| 114 | if (RT_SUCCESS(rc))
|
|---|
| 115 | {
|
|---|
| 116 | *penmEventType = Req.enmEventType;
|
|---|
| 117 | *pidCpuCore = Req.idCpuCore;
|
|---|
| 118 | *pidCpuPackage = Req.idCpuPackage;
|
|---|
| 119 | return VINF_SUCCESS;
|
|---|
| 120 | }
|
|---|
| 121 | }
|
|---|
| 122 | else
|
|---|
| 123 | rc = VERR_TRY_AGAIN;
|
|---|
| 124 | }
|
|---|
| 125 | return rc;
|
|---|
| 126 | }
|
|---|
| 127 |
|
|---|
