VIRTIO_PCI_QUEUE_NOTIFY is 16-bit and iowrite16 is used in
drivers/virtio/virtio_pci.c to notify the other side.
If the size doesn't match notification via mmio write will fail.
Signed-off-by: Andreas Herrmann <andreas.herrm...@caviumnetworks.com>
---
virtio/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/virtio/pci.c b/virtio/pci.c
index 7556239..aa9bf09 100644
--- a/virtio/pci.c
+++ b/virtio/pci.c
@@ -57,7 +57,7 @@ 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);
r = ioeventfd__add_event(&ioevent, flags);
if (r)
--
1.7.9.5
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