From 722f8c51d8af223751dfb1d02de40043e8ba067e Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 9 Dec 2019 11:46:13 -0500 Subject: [PATCH] virtio: add ability to delete vq through a pointer Devices tend to maintain vq pointers, allow deleting them trough a vq pointer. Signed-off-by: Michael S. Tsirkin Reviewed-by: David Hildenbrand Reviewed-by: David Hildenbrand --- hw/virtio/virtio.c | 15 ++++++++++----- include/hw/virtio/virtio.h | 2 ++ 2 files changed, 12 insertions(+), 5 deletions(-) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 04716b5f6c..31dd140990 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2330,17 +2330,22 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size, return &vdev->vq[i]; } +void virtio_delete_queue(VirtQueue *vq) +{ + vq->vring.num = 0; + vq->vring.num_default = 0; + vq->handle_output = NULL; + vq->handle_aio_output = NULL; + g_free(vq->used_elems); +} + void virtio_del_queue(VirtIODevice *vdev, int n) { if (n < 0 || n >= VIRTIO_QUEUE_MAX) { abort(); } - vdev->vq[n].vring.num = 0; - vdev->vq[n].vring.num_default = 0; - vdev->vq[n].handle_output = NULL; - vdev->vq[n].handle_aio_output = NULL; - g_free(vdev->vq[n].used_elems); + virtio_delete_queue(&vdev->vq[n]); } static void virtio_set_isr(VirtIODevice *vdev, int value) diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h index c32a815303..e18756d50d 100644 --- a/include/hw/virtio/virtio.h +++ b/include/hw/virtio/virtio.h @@ -183,6 +183,8 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size, void virtio_del_queue(VirtIODevice *vdev, int n); +void virtio_delete_queue(VirtQueue *vq); + void virtqueue_push(VirtQueue *vq, const VirtQueueElement *elem, unsigned int len); void virtqueue_flush(VirtQueue *vq, unsigned int count);