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| author | Jean-Philippe Brucker <jean-philippe.brucker@arm.com> | 2019-01-10 14:12:49 +0000 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-01-22 06:55:26 +0000 |
| commit | 8003ede4c9720fa53f3b0396228f2864e3ad906a (patch) | |
| tree | ffc146d63d7cb85ff9d916b9802b8fdab75245d8 | |
| parent | 7a7f45421f3a04e25d274c207ddd110af69da1bb (diff) | |
| download | kvmtool-8003ede4c9720fa53f3b0396228f2864e3ad906a.tar.gz | |
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>
| -rw-r--r-- | virtio/9p.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/virtio/9p.c b/virtio/9p.c index d9f45cf0..6bae4030 100644 --- a/virtio/9p.c +++ b/virtio/9p.c @@ -1384,6 +1384,14 @@ static void set_guest_features(struct kvm *kvm, void *dev, u32 features) 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 @@ static int init_vq(struct kvm *kvm, void *dev, u32 vq, u32 page_size, u32 align, 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 @@ struct virtio_ops p9_dev_virtio_ops = { .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, |