63 lines
2.0 KiB
Diff
63 lines
2.0 KiB
Diff
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From: "Michael S. Tsirkin" <mst@redhat.com>
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Date: Mon, 9 Dec 2019 11:46:13 -0500
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Subject: virtio: add ability to delete vq through a pointer
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Git-commit: 722f8c51d8af223751dfb1d02de40043e8ba067e
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Devices tend to maintain vq pointers, allow deleting them trough a vq pointer.
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Reviewed-by: David Hildenbrand <david@redhat.com>
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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hw/virtio/virtio.c | 15 ++++++++++-----
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include/hw/virtio/virtio.h | 2 ++
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2 files changed, 12 insertions(+), 5 deletions(-)
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diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
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index 04716b5f6ce1ccfb3f21a5b81b77..31dd140990f784884b541b293105 100644
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--- a/hw/virtio/virtio.c
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+++ b/hw/virtio/virtio.c
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@@ -2330,17 +2330,22 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
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return &vdev->vq[i];
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}
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+void virtio_delete_queue(VirtQueue *vq)
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+{
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+ vq->vring.num = 0;
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+ vq->vring.num_default = 0;
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+ vq->handle_output = NULL;
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+ vq->handle_aio_output = NULL;
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+ g_free(vq->used_elems);
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+}
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+
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void virtio_del_queue(VirtIODevice *vdev, int n)
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{
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if (n < 0 || n >= VIRTIO_QUEUE_MAX) {
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abort();
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}
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- vdev->vq[n].vring.num = 0;
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- vdev->vq[n].vring.num_default = 0;
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- vdev->vq[n].handle_output = NULL;
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- vdev->vq[n].handle_aio_output = NULL;
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- g_free(vdev->vq[n].used_elems);
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+ virtio_delete_queue(&vdev->vq[n]);
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}
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static void virtio_set_isr(VirtIODevice *vdev, int value)
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diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
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index c32a815303730700e60c2ddd06c4..e18756d50d21259dda81bf1d1b1d 100644
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--- a/include/hw/virtio/virtio.h
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+++ b/include/hw/virtio/virtio.h
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@@ -183,6 +183,8 @@ VirtQueue *virtio_add_queue(VirtIODevice *vdev, int queue_size,
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void virtio_del_queue(VirtIODevice *vdev, int n);
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+void virtio_delete_queue(VirtQueue *vq);
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+
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void virtqueue_push(VirtQueue *vq, const VirtQueueElement *elem,
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unsigned int len);
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void virtqueue_flush(VirtQueue *vq, unsigned int count);
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