Re: [PATCH] kvm tools: Fix IRQ mapping

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On 8/11/11 12:04 PM, Sasha Levin wrote:
This thread fixes two issues:
  - Slave IRQCHIP was mapped wrong, this caused all IRQs which belong
to it to be ignored (breaking such things as the mouse).
  - Line 2 was being mapped, since it's the link between slave and master
IRQCHIPs it shouldn't be.

Signed-off-by: Sasha Levin<levinsasha928@xxxxxxxxx>

Asias, does this fix the VNC mouse problem for you?

---
  tools/kvm/irq.c |    7 ++++---
  1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/kvm/irq.c b/tools/kvm/irq.c
index 85e2238..e35bf18 100644
--- a/tools/kvm/irq.c
+++ b/tools/kvm/irq.c
@@ -147,17 +147,18 @@ void irq__init(struct kvm *kvm)

  	/* Hook first 8 GSIs to master IRQCHIP */
  	for (i = 0; i<  8; i++)
-		irq__add_routing(i, KVM_IRQ_ROUTING_IRQCHIP, IRQCHIP_MASTER, i);
+		if (i != 2)
+			irq__add_routing(i, KVM_IRQ_ROUTING_IRQCHIP, IRQCHIP_MASTER, i);

  	/* Hook next 8 GSIs to slave IRQCHIP */
  	for (i = 8; i<  16; i++)
-		irq__add_routing(i, KVM_IRQ_ROUTING_IRQCHIP, IRQCHIP_SLAVE, 8-i);
+		irq__add_routing(i, KVM_IRQ_ROUTING_IRQCHIP, IRQCHIP_SLAVE, i - 8);

  	/* Last but not least, IOAPIC */
  	for (i = 0; i<  24; i++) {
  		if (i == 0)
  			irq__add_routing(i, KVM_IRQ_ROUTING_IRQCHIP, IRQCHIP_IOAPIC, 2);
-		else
+		else if (i != 2)
  			irq__add_routing(i, KVM_IRQ_ROUTING_IRQCHIP, IRQCHIP_IOAPIC, i);
  	}


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