From 5669655aafdb88a8797c74a989dd0c0ebb1349fa Mon Sep 17 00:00:00 2001 From: Victor Kaplansky Date: Thu, 18 Feb 2016 16:12:23 +0200 Subject: vhost-user interrupt management fixes Since guest_mask_notifier can not be used in vhost-user mode due to buffering implied by unix control socket, force use_mask_notifier on virtio devices of vhost-user interfaces, and send correct callfd to the guest at vhost start. Using guest_notifier_mask function in vhost-user case may break interrupt mask paradigm, because mask/unmask is not really done when returning from guest_notifier_mask call, instead message is posted in a unix socket, and processed later. Add an option boolean flag 'use_mask_notifier' to disable the use of guest_notifier_mask in virtio pci. Signed-off-by: Didier Pallard Signed-off-by: Victor Kaplansky Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/virtio/virtio.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/hw/virtio') diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index 108cdb0..c38a2fe 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -90,6 +90,7 @@ struct VirtIODevice VMChangeStateEntry *vmstate; char *bus_name; uint8_t device_endian; + bool use_guest_notifier_mask; QLIST_HEAD(, VirtQueue) *vector_queues; }; -- cgit v1.1