STDMETHODIMP Guest::SetCredentials(IN_BSTR aUserName, IN_BSTR aPassword,
                                   IN_BSTR aDomain, BOOL aAllowInteractiveLogon)
{
    AutoCaller autoCaller(this);
    if (FAILED(autoCaller.rc())) return autoCaller.rc();

    /* forward the information to the VMM device */
    VMMDev *pVMMDev = mParent->getVMMDev();
    if (pVMMDev)
    {
        PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
        if (pVMMDevPort)
        {
            uint32_t u32Flags = VMMDEV_SETCREDENTIALS_GUESTLOGON;
            if (!aAllowInteractiveLogon)
                u32Flags = VMMDEV_SETCREDENTIALS_NOLOCALLOGON;

            pVMMDevPort->pfnSetCredentials(pVMMDevPort,
                                           Utf8Str(aUserName).c_str(),
                                           Utf8Str(aPassword).c_str(),
                                           Utf8Str(aDomain).c_str(),
                                           u32Flags);
            return S_OK;
        }
    }

    return setError(VBOX_E_VM_ERROR,
                    tr("VMM device is not available (is the VM running?)"));
}

int GuestDnD::hostCall(uint32_t u32Function, uint32_t cParms, PVBOXHGCMSVCPARM paParms) const
{
    Assert(!m_pGuest.isNull());
    ComObjPtr<Console> pConsole = m_pGuest->i_getConsole();

    /* Forward the information to the VMM device. */
    Assert(!pConsole.isNull());
    VMMDev *pVMMDev = pConsole->i_getVMMDev();
    if (!pVMMDev)
        return VERR_COM_OBJECT_NOT_FOUND;

    return pVMMDev->hgcmHostCall("VBoxDragAndDropSvc", u32Function, cParms, paParms);
}

HRESULT Guest::setCredentials(const com::Utf8Str &aUserName, const com::Utf8Str &aPassword,
                              const com::Utf8Str &aDomain, BOOL aAllowInteractiveLogon)
{
    /* Check for magic domain names which are used to pass encryption keys to the disk. */
    if (Utf8Str(aDomain) == "@@disk")
        return mParent->i_setDiskEncryptionKeys(aPassword);
    else if (Utf8Str(aDomain) == "@@mem")
    {
        /** @todo */
        return E_NOTIMPL;
    }
    else
    {
        /* forward the information to the VMM device */
        VMMDev *pVMMDev = mParent->i_getVMMDev();
        if (pVMMDev)
        {
            PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
            if (pVMMDevPort)
            {
                uint32_t u32Flags = VMMDEV_SETCREDENTIALS_GUESTLOGON;
                if (!aAllowInteractiveLogon)
                    u32Flags = VMMDEV_SETCREDENTIALS_NOLOCALLOGON;

                pVMMDevPort->pfnSetCredentials(pVMMDevPort,
                                               aUserName.c_str(),
                                               aPassword.c_str(),
                                               aDomain.c_str(),
                                               u32Flags);
                return S_OK;
            }
        }
    }

    return setError(VBOX_E_VM_ERROR,
                    tr("VMM device is not available (is the VM running?)"));
}

int Display::i_videoAccelEnable(bool fEnable, VBVAMEMORY *pVbvaMemory, PPDMIDISPLAYPORT pUpPort)
{
    int rc = VINF_SUCCESS;

    VIDEOACCEL *pVideoAccel = &mVideoAccelLegacy;

    /* Called each time the guest wants to use acceleration,
     * or when the VGA device disables acceleration,
     * or when restoring the saved state with accel enabled.
     *
     * VGA device disables acceleration on each video mode change
     * and on reset.
     *
     * Guest enabled acceleration at will. And it has to enable
     * acceleration after a mode change.
     */
    LogRelFlowFunc(("mfVideoAccelEnabled = %d, fEnable = %d, pVbvaMemory = %p\n",
                  pVideoAccel->fVideoAccelEnabled, fEnable, pVbvaMemory));

    /* Strictly check parameters. Callers must not pass anything in the case. */
    Assert((fEnable && pVbvaMemory) || (!fEnable && pVbvaMemory == NULL));

    if (!i_VideoAccelAllowed ())
        return VERR_NOT_SUPPORTED;

    /* Check that current status is not being changed */
    if (pVideoAccel->fVideoAccelEnabled == fEnable)
        return rc;

    if (pVideoAccel->fVideoAccelEnabled)
    {
        /* Process any pending orders and empty the VBVA ring buffer. */
        i_videoAccelFlush (pUpPort);
    }

    if (!fEnable && pVideoAccel->pVbvaMemory)
        pVideoAccel->pVbvaMemory->fu32ModeFlags &= ~VBVA_F_MODE_ENABLED;

    if (fEnable)
    {
        /* Process any pending VGA device changes, resize. */
        pUpPort->pfnUpdateDisplayAll(pUpPort, /* fFailOnResize = */ false);
    }

    /* Protect the videoaccel state transition. */
    RTCritSectEnter(&mVideoAccelLock);

    if (fEnable)
    {
        /* Initialize the hardware memory. */
        i_vbvaSetMemoryFlags(pVbvaMemory, true, mfVideoAccelVRDP,
                             mfu32SupportedOrders, maFramebuffers, mcMonitors);
        pVbvaMemory->off32Data = 0;
        pVbvaMemory->off32Free = 0;

        memset(pVbvaMemory->aRecords, 0, sizeof(pVbvaMemory->aRecords));
        pVbvaMemory->indexRecordFirst = 0;
        pVbvaMemory->indexRecordFree = 0;

        pVideoAccel->pVbvaMemory = pVbvaMemory;
        pVideoAccel->fVideoAccelEnabled = true;

        LogRel(("VBVA: Enabled.\n"));
    }
    else
    {
        pVideoAccel->pVbvaMemory = NULL;
        pVideoAccel->fVideoAccelEnabled = false;

        LogRel(("VBVA: Disabled.\n"));
    }

    RTCritSectLeave(&mVideoAccelLock);

    if (!fEnable)
    {
        pUpPort->pfnUpdateDisplayAll(pUpPort, /* fFailOnResize = */ false);
    }

    /* Notify the VMMDev, which saves VBVA status in the saved state,
     * and needs to know current status.
     */
    VMMDev *pVMMDev = mParent->i_getVMMDev();
    if (pVMMDev)
    {
        PPDMIVMMDEVPORT pVMMDevPort = pVMMDev->getVMMDevPort();
        if (pVMMDevPort)
            pVMMDevPort->pfnVBVAChange(pVMMDevPort, fEnable);
    }

    LogRelFlowFunc(("%Rrc.\n", rc));
    return rc;
}