From: Sasha Levin <levinsasha928@gmail.com>
Date: Mon, 19 Sep 2011 10:40:45 +0000 (+0300)
Subject: kvm tools: Fix INTx handling
X-Git-Tag: next-20110920~2^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5b5ba3515ea43676fe71e88cbd8d91ddcf3ef273;p=karo-tx-linux.git

kvm tools: Fix INTx handling

Since we didn't raise the ISR INTx interrupts were sometimes ignored by
the guest. This caused hangs on boot when starting a guest without MSIX
support.

Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
---

diff --git a/tools/kvm/virtio/pci.c b/tools/kvm/virtio/pci.c
index 7743431552af..f01851bc174b 100644
--- a/tools/kvm/virtio/pci.c
+++ b/tools/kvm/virtio/pci.c
@@ -234,6 +234,7 @@ int virtio_pci__signal_vq(struct kvm *kvm, struct virtio_pci *vpci, u32 vq)
 
 		kvm__irq_trigger(kvm, vpci->gsis[vq]);
 	} else {
+		vpci->isr = VIRTIO_IRQ_HIGH;
 		kvm__irq_trigger(kvm, vpci->pci_hdr.irq_line);
 	}
 	return 0;