PPC: Set MPIC IDE for IPI to 0
We use the IDE register with IPIs as a mask to keep track which processors have already acknowledged the respective interrupt. So we need to initialize it to 0 to make sure that it doesn't accidently fire an IPI on CPU0 when the first IPI is triggered. Reported-by: Elie Richa <richa@adacore.com> Signed-off-by: Alexander Graf <agraf@suse.de> --- v2 -> v3: - fix IDE IPI reset
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@ -1299,6 +1299,10 @@ static void mpic_reset (void *opaque)
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mpp->src[i].ipvp = 0x80800000;
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mpp->src[i].ide = 0x00000001;
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}
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/* Set IDE for IPIs to 0 so we don't get spurious interrupts */
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for (i = mpp->irq_ipi0; i < (mpp->irq_ipi0 + MAX_IPI); i++) {
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mpp->src[i].ide = 0;
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}
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/* Initialise IRQ destinations */
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for (i = 0; i < MAX_CPU; i++) {
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mpp->dst[i].pctp = 0x0000000F;
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