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authorAlex Bennée <alex.bennee@linaro.org>2022-08-02 10:49:59 +0100
committerMichael S. Tsirkin <mst@redhat.com>2022-10-07 09:41:51 -0400
commitb8f3e6a18de6ad5cb668c5430b4933f1e40783cf (patch)
tree5dae60d01c48a72924737b17221176a1020be804 /include
parent9f6bcfd99f46377888059d8539befec9505f57fb (diff)
hw/virtio: move vhd->started check into helper and add FIXME
The `started` field is manipulated internally within the vhost code except for one place, vhost-user-blk via f5b22d06fb (vhost: recheck dev state in the vhost_migration_log routine). Mark that as a FIXME because it introduces a potential race. I think the referenced fix should be tracking its state locally. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220802095010.3330793-12-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Raphael Norwitz <raphael.norwittz@nutanix.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/virtio/vhost.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h
index 586c5457e2..61b957e927 100644
--- a/include/hw/virtio/vhost.h
+++ b/include/hw/virtio/vhost.h
@@ -94,6 +94,7 @@ struct vhost_dev {
uint64_t protocol_features;
uint64_t max_queues;
uint64_t backend_cap;
+ /* @started: is the vhost device started? */
bool started;
bool log_enabled;
uint64_t log_size;
@@ -166,6 +167,17 @@ int vhost_dev_enable_notifiers(struct vhost_dev *hdev, VirtIODevice *vdev);
void vhost_dev_disable_notifiers(struct vhost_dev *hdev, VirtIODevice *vdev);
/**
+ * vhost_dev_is_started() - report status of vhost device
+ * @hdev: common vhost_dev structure
+ *
+ * Return the started status of the vhost device
+ */
+static inline bool vhost_dev_is_started(struct vhost_dev *hdev)
+{
+ return hdev->started;
+}
+
+/**
* vhost_dev_start() - start the vhost device
* @hdev: common vhost_dev structure
* @vdev: the VirtIODevice structure