| 1 | /* $Id: VBoxGuestR3LibCpuHotplug.cpp 25976 2010-01-22 15:40:27Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, CPU hotplug.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 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 | /*******************************************************************************
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| 24 | * Header Files *
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| 25 | *******************************************************************************/
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| 26 | #include "VBGLR3Internal.h"
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| 27 |
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| 28 | VBGLR3DECL(int) VbglR3CpuHotplugInit(void)
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| 29 | {
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| 30 | int rc = VINF_SUCCESS;
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| 31 | VMMDevCpuHotPlugStatusRequest Req;
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| 32 | vmmdevInitRequest(&Req.header, VMMDevReq_SetCpuHotPlugStatus);
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| 33 | Req.enmStatusType = VMMDevCpuStatusType_Enable;
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| 34 |
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| 35 | rc = VbglR3CtlFilterMask(VMMDEV_EVENT_CPU_HOTPLUG, 0);
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| 36 | if (RT_FAILURE(rc))
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| 37 | return rc;
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| 38 |
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| 39 | rc = vbglR3GRPerform(&Req.header);
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| 40 | if (RT_FAILURE(rc))
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| 41 | VbglR3CtlFilterMask(0, VMMDEV_EVENT_CPU_HOTPLUG);
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| 42 |
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| 43 | return rc;
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| 44 | }
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| 45 |
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| 46 | VBGLR3DECL(int) VbglR3CpuHotplugTerm(void)
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| 47 | {
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| 48 | VMMDevCpuHotPlugStatusRequest Req;
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| 49 | vmmdevInitRequest(&Req.header, VMMDevReq_SetCpuHotPlugStatus);
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| 50 | Req.enmStatusType = VMMDevCpuStatusType_Disable;
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| 51 |
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| 52 | /* Clear the events. */
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| 53 | VbglR3CtlFilterMask(0, VMMDEV_EVENT_CPU_HOTPLUG);
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| 54 |
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| 55 | int rc = vbglR3GRPerform(&Req.header);
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| 56 | return rc;
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| 57 | }
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| 58 |
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| 59 | VBGLR3DECL(int) VbglR3CpuHotplugWaitForEvent(VMMDevCpuEventType *penmEventType, uint32_t *pidCpuCore, uint32_t *pidCpuPackage)
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| 60 | {
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| 61 | VBoxGuestWaitEventInfo waitEvent;
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| 62 | int rc;
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| 63 |
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| 64 | AssertPtrReturn(penmEventType, VERR_INVALID_PARAMETER);
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| 65 | AssertPtrReturn(pidCpuCore, VERR_INVALID_PARAMETER);
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| 66 | AssertPtrReturn(pidCpuPackage, VERR_INVALID_PARAMETER);
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| 67 | waitEvent.u32TimeoutIn = RT_INDEFINITE_WAIT;
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| 68 | waitEvent.u32EventMaskIn = VMMDEV_EVENT_CPU_HOTPLUG;
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| 69 | waitEvent.u32Result = VBOXGUEST_WAITEVENT_ERROR;
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| 70 | waitEvent.u32EventFlagsOut = 0;
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| 71 | rc = vbglR3DoIOCtl(VBOXGUEST_IOCTL_WAITEVENT, &waitEvent, sizeof(waitEvent));
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| 72 | if (RT_SUCCESS(rc))
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| 73 | {
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| 74 | /* did we get the right event? */
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| 75 | if (waitEvent.u32EventFlagsOut & VMMDEV_EVENT_CPU_HOTPLUG)
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| 76 | {
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| 77 | VMMDevGetCpuHotplugRequest Req;
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| 78 |
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| 79 | /* get the seamless change request */
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| 80 | vmmdevInitRequest(&Req.header, VMMDevReq_GetCpuHotPlugRequest);
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| 81 | Req.idCpuCore = UINT32_MAX;
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| 82 | Req.idCpuPackage = UINT32_MAX;
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| 83 | Req.enmEventType = VMMDevCpuEventType_None;
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| 84 | rc = vbglR3GRPerform(&Req.header);
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| 85 | if (RT_SUCCESS(rc))
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| 86 | {
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| 87 | *penmEventType = Req.enmEventType;
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| 88 | *pidCpuCore = Req.idCpuCore;
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| 89 | *pidCpuPackage = Req.idCpuPackage;
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| 90 | return VINF_SUCCESS;
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| 91 | }
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| 92 | }
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| 93 | else
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| 94 | rc = VERR_TRY_AGAIN;
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| 95 | }
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| 96 | return rc;
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| 97 | }
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| 98 |
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