On Tue, Jan 24, 2012 at 03:06:05PM +0200, Gleb Natapov wrote: > The spec says that during initialization "The edge sense circuit is > reset which means that following initialization an interrupt request > (IR) input must make a low-to-high transition to generate an interrupt", > but currently if edge triggered interrupt is in IRR it is delivered > after i8259 initialization. > ping
> Signed-off-by: Gleb Natapov <[email protected]> > diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c > index b6a7353..81cf4fa 100644 > --- a/arch/x86/kvm/i8259.c > +++ b/arch/x86/kvm/i8259.c > @@ -307,6 +307,7 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 > val) > if (val & 0x10) { > s->init4 = val & 1; > s->last_irr = 0; > + s->irr &= s->elcr; > s->imr = 0; > s->priority_add = 0; > s->special_mask = 0; > -- > Gleb. > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
