bool
org_virtualbox_VBoxGuest::setupVmmDevInterrupts(IOService *pProvider)
{
IOWorkLoop *pWorkLoop = getWorkLoop();
if (!pWorkLoop)
return false;
m_pInterruptSrc = IOFilterInterruptEventSource::filterInterruptEventSource(this,
&deferredInterruptHandler,
&directInterruptHandler,
pProvider);
if (kIOReturnSuccess != pWorkLoop->addEventSource(m_pInterruptSrc))
{
m_pInterruptSrc->disable();
m_pInterruptSrc->release();
m_pInterruptSrc = 0;
return false;
}
m_pInterruptSrc->enable();
return true;
}
IOFilterInterruptEventSource *IOFilterInterruptEventSource
::filterInterruptEventSource(OSObject *inOwner,
Action inAction,
Filter inFilterAction,
IOService *inProvider,
int inIntIndex)
{
IOFilterInterruptEventSource *me = new IOFilterInterruptEventSource;
if (me
&& !me->init(inOwner, inAction, inFilterAction, inProvider, inIntIndex)) {
me->release();
return 0;
}
return me;
}
bool org_virtualbox_VBoxGuest::disableVmmDevInterrupts(void)
{
IOWorkLoop *pWorkLoop = (IOWorkLoop *)getWorkLoop();
if (!pWorkLoop)
return false;
if (!m_pInterruptSrc)
return false;
m_pInterruptSrc->disable();
pWorkLoop->removeEventSource(m_pInterruptSrc);
m_pInterruptSrc->release();
m_pInterruptSrc = NULL;
return true;
}
bool org_virtualbox_VBoxGuest::setupVmmDevInterrupts(IOService *pProvider)
{
IOWorkLoop *pWorkLoop = getWorkLoop();
if (!pWorkLoop)
return false;
m_pInterruptSrc = IOFilterInterruptEventSource::filterInterruptEventSource(this,
&vgdrvDarwinDeferredIrqHandler,
&vgdrvDarwinDirectIrqHandler,
pProvider);
IOReturn rc = pWorkLoop->addEventSource(m_pInterruptSrc);
if (rc == kIOReturnSuccess)
{
m_pInterruptSrc->enable();
return true;
}
m_pInterruptSrc->disable();
m_pInterruptSrc->release();
m_pInterruptSrc = NULL;
return false;
}