On 02/03/2011 04:15 PM, Gleb Natapov wrote:
> > Maybe this is true for the in-kernel model, but I don't see the issue > (anymore) for the way user space works. > With patch below I can boot Windows7.diff --git a/hw/apic.c b/hw/apic.c index 146deca..fdcac88 100644 --- a/hw/apic.c +++ b/hw/apic.c @@ -600,7 +600,7 @@ int apic_get_interrupt(DeviceState *d) intno = get_highest_priority_int(s->irr); if (intno< 0) return -1; - if (s->tpr&& intno<= s->tpr) + if ((s->tpr>> 4)&& (intno>> 4)<= (s->tpr>> 4)) return s->spurious_vec& 0xff; reset_bit(s->irr, intno); set_bit(s->isr, intno);
That still allows interrupts that have higher priority than the TPR, but lower priority than interrupts in the ISR to be injected. I think we need to use the PPR here (same as apic_update_irq()).
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