diff options
| author | Victor Kaplansky <victork@redhat.com> | 2016-02-18 16:12:23 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2016-02-18 16:13:56 +0200 |
| commit | 5669655aafdb88a8797c74a989dd0c0ebb1349fa (patch) | |
| tree | 4cb64c547734f3d90070cf72b36633b0da74f448 /hw/virtio/virtio.c | |
| parent | cefa2bbd6ad516a8cde9425a35597487d9a4becb (diff) | |
| download | qemu-5669655aafdb88a8797c74a989dd0c0ebb1349fa.tar.gz | |
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 <didier.pallard@6wind.com>
Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/virtio/virtio.c')
| -rw-r--r-- | hw/virtio/virtio.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 90f25451d0..e365960bd7 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -1677,6 +1677,7 @@ void virtio_init(VirtIODevice *vdev, const char *name, vdev->vmstate = qemu_add_vm_change_state_handler(virtio_vmstate_change, vdev); vdev->device_endian = virtio_default_endian(); + vdev->use_guest_notifier_mask = true; } hwaddr virtio_queue_get_desc_addr(VirtIODevice *vdev, int n) |