virtio/p9: Implement reset
The p9 reset cancels all running jobs and closes any open fid.
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
diff --git a/virtio/9p.c b/virtio/9p.c
index d9f45cf..6bae403 100644
--- a/virtio/9p.c
+++ b/virtio/9p.c
@@ -1384,6 +1384,14 @@
static void notify_status(struct kvm *kvm, void *dev, u32 status)
{
+ struct p9_dev *p9dev = dev;
+ struct p9_fid *pfid, *next;
+
+ if (!(status & VIRTIO__STATUS_STOP))
+ return;
+
+ rbtree_postorder_for_each_entry_safe(pfid, next, &p9dev->fids, node)
+ close_fid(p9dev, pfid->fid);
}
static int init_vq(struct kvm *kvm, void *dev, u32 vq, u32 page_size, u32 align,
@@ -1413,6 +1421,13 @@
return 0;
}
+static void exit_vq(struct kvm *kvm, void *dev, u32 vq)
+{
+ struct p9_dev *p9dev = dev;
+
+ thread_pool__cancel_job(&p9dev->jobs[vq].job_id);
+}
+
static int notify_vq(struct kvm *kvm, void *dev, u32 vq)
{
struct p9_dev *p9dev = dev;
@@ -1450,6 +1465,7 @@
.get_host_features = get_host_features,
.set_guest_features = set_guest_features,
.init_vq = init_vq,
+ .exit_vq = exit_vq,
.notify_status = notify_status,
.notify_vq = notify_vq,
.get_vq = get_vq,
