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Date: Tue, 22 Dec 2009 16:20:27 +0200
From: Gleb Natapov <gleb@redhat.com>
To: Mikolaj Kucharski <mikolaj@kucharski.name>, kvm@vger.kernel.org
Subject: Re: Qemu vs Qemu-KVM
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diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 38a2d20..fc37eac 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -121,6 +121,8 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val)
 	default:
 		index = (ioapic->ioregsel - 0x10) >> 1;
 
+		if (!(ioapic->ioregsel & 1))
+			val &= ~0xa000;
 		ioapic_debug("change redir index %x val %x\n", index, val);
 		if (index >= IOAPIC_NUM_PINS)
 			return;