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authorJason Wang <jasowang@redhat.com>2020-07-01 22:55:27 +0800
committerMichael S. Tsirkin <mst@redhat.com>2020-07-03 07:57:04 -0400
commitb2a5f62a2284a8933f6f6cda48797b7263b96970 (patch)
tree91f7c200775f4c44672db6d9d1a184910bfe7722 /include
parent92fbc3e07eb924bd5e03d22764e637b2e02e46bd (diff)
virtio-bus: introduce queue_enabled method
This patch introduces queue_enabled() method which allows the transport to implement its own way to report whether or not a queue is enabled. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Cindy Lu <lulu@redhat.com> Message-Id: <20200701145538.22333-4-lulu@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/virtio/virtio-bus.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h
index 38c9399cd4..0f6f215925 100644
--- a/include/hw/virtio/virtio-bus.h
+++ b/include/hw/virtio/virtio-bus.h
@@ -84,6 +84,10 @@ typedef struct VirtioBusClass {
int (*ioeventfd_assign)(DeviceState *d, EventNotifier *notifier,
int n, bool assign);
/*
+ * Whether queue number n is enabled.
+ */
+ bool (*queue_enabled)(DeviceState *d, int n);
+ /*
* Does the transport have variable vring alignment?
* (ie can it ever call virtio_queue_set_align()?)
* Note that changing this will break migration for this transport.