On Thu, 21 Nov 2013 16:32:27 +0800 Li Guang <lig.f...@cn.fujitsu.com> wrote:
> Michael S. Tsirkin wrote: > > On Thu, Nov 21, 2013 at 04:18:45PM +0800, Li Guang wrote: > > > >> Hu Tao wrote: > >> > >>> On Thu, Nov 21, 2013 at 09:14:18AM +0200, Michael S. Tsirkin wrote: > >>> > >>>> On Thu, Nov 21, 2013 at 03:38:37AM +0100, Igor Mammedov wrote: > >>>> > >>>>> it fixes IRQ storm since guest isn't able to lower SCI IRQ > >>>>> after it has been handled when it clears GPE event. > >>>>> > >>>>> Signed-off-by: Igor Mammedov<imamm...@redhat.com> > >>>>> > >>>> The storm is only on memory hotplug right? > >>>> > >>> IIRC, it happens on cpu hotplug, too. > >>> > >>> > >>> > >>> > >> :-), that made remember EC implementation, > >> with EC, SCI will be safer, I think. > >> > > Hmm you are saying let's use EC for memory hotplug? > > > > > > > It can be a bridge between guest and QEMU, > with it, we may don't have to bother ASL writing > and south-bridge hardware related work(or very > little) if we implement EC correctly. > Wouldn't it require guest driver though? Beauty of ASL/GPE it's that it supported by Windows and Linux out of box.
