On 05/09/2013 05:07:00 PM, Benjamin Herrenschmidt wrote:
On Thu, 2013-05-09 at 16:27 -0500, Scott Wood wrote:
> On 05/09/2013 07:37:42 AM, Benjamin Herrenschmidt wrote:
> > On Thu, 2013-05-09 at 17:44 +0800, tiejun.chen wrote:
> > >
> > > Actually in the case GS=1 even if EE=0, EXT/DEC/DBELL still
occur
> > as I
> > > recall.
> >
> > Only if directed to the hypervisor.
>
> This is always the case with KVM, right? At least on booke...
Hrm, on A2 we could choose iirc. Well not DEC but EXT at least, I
don't
remember about DBELL.
As for as the hardware goes we can choose on e500mc as well -- we just
don't support it in KVM, because we can't distinguish between guest and
host interrupts without routing the latter to critical, which is way
too much of a pain for Linux (we did it in our standalone hypervisor,
though).
-Scott
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