This patch is to fix wrong parameters of ioctl(KVM_IOEVENTFD) calls,
otherwise
macvtap + vhost-net is broken, that is:
1. we should register these address range on MMIO bus instead of PIO bus.
2. the register VIRTIO_PCI_QUEUE_NOTIFY should be 16-bits width.
Signed-off-by: Yu Li <raise.sail@xxxxxxxxx>
diff --git a/tools/kvm/virtio/pci.c b/tools/kvm/virtio/pci.c
index 7556239..fcf8e93 100644
--- a/tools/kvm/virtio/pci.c
+++ b/tools/kvm/virtio/pci.c
@@ -57,8 +57,9 @@ static int virtio_pci__init_ioeventfd(struct kvm *kvm,
struct virtio_device *vde
/* mmio */
ioevent.io_addr = vpci->mmio_addr + VIRTIO_PCI_QUEUE_NOTIFY;
- ioevent.io_len = sizeof(u32);
+ ioevent.io_len = sizeof(u16);
ioevent.fd = fds[1] = eventfd(0, 0);
+ flags &= ~IOEVENTFD_FLAG_PIO;
r = ioeventfd__add_event(&ioevent, flags);
if (r)
goto free_ioport_evt;
--
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